Volume 2 - Inspection Manual: Federal Equipment Leak ...€¦ · Chapter 4 Compliance/Assessment...

United States Enforcement and EPA/305/B-98/011Environmental Protection Compliance Assurance December 1998Agency (2224A)

Inspection Manual:Federal Equipment LeakRegulations for theChemical ManufacturingIndustry

Volume II: ChemicalManufacturing IndustryRegulations

EPA Office of ComplianceChemical, CommercialServices, and MunicipalDivision

ABSTRACT

The purpose of this manual is to enhance an inspector’s ability to conduct more completeand effective inspections at facilities in the chemical industry that are subject to federalequipment leak regulations. Equipment leak standards are designed to reduce or eliminateemissions of volatile organic compounds (VOCs), volatile hazardous air pollutants(VHAPs), and organic HAPs from the miles of piping and numerous components found inchemical manufacturing processes.

This document is divided into three volumes. The first volume is a manual for inspectors;the second and third volumes describe regulations that apply to the chemicalmanufacturing and the petroleum refining industries, respectively.

Volume I has five chapters dedicated to helping an inspector:C Chapter 1 states the goals, background, approaches to rule enforcement, and

organization of the document.C Chapter 2 addresses applicability determinations: ensuring the correct rules are

being complied with at a facility, determining whether all appropriate componentshave been identified, and ensuring the components are properly classified byservice.

C Chapter 3 discusses reporting and recordkeeping requirements for NSPS,NESHAP, HON, and RCRA (recordkeeping only), and strategies for reviewingreports and records.

C Chapter 4 covers on-site inspections: walk-throughs and inspections with theinspector monitoring for leaks. It addresses pre-inspection activities, timing andscope, interviews, leak monitoring evaluations, inspections of the process area andrecords, and post-inspection reviews and reports.

C Chapter 5 discusses recommended inspection techniques and procedures.

Volume II tackles the equipment leak regulations applicable to the chemical manufacturingindustry.

C The first three appendices of Volume II summarize the regulations of 40 CFR Part60 Subpart VV, Part 61 Subparts J and V, Part 63 Subparts H and I, Part 264Subpart BB, and Part 265 Subpart BB; detail the differences among theregulations; and give the requirements grouped by component.

C Appendix D describes the regulated equipment.C Appendix E contains the “Method 21" approach to leak detection.C Appendix F lists chemical manufacturing processes that are subject to HON.C Appendix G lists organic HAPs that are subject to HON.C Appendix H lists manufacturing processes and associated organic HAP emissions

that are subject to HON.

Volume III contains the equipment leak regulations applicable to the petroleum refiningindustry.

C The three appendices of Volume III summarize the regulations of 40 CFR Part 60Subparts DDD, GGG, KKK, and QQQ, and Part 63 Subpart CC; detail thedifferences among the regulations; and give the requirements grouped bycomponent.

CONTENTS

VOLUME II: CHEMICAL MANUFACTURING INDUSTRY REGULATIONS

PageAppendix A Equipment Leak Regulations: Side-by-Side Comparisons . . . . A-1

Appendix B Equipment Leak Regulations: Summary of Differences . . . . . . B-1

Appendix C Equipment Leak Regulations: Summary by Component . . . . . C-1

Appendix D Regulated Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Appendix E Method 21 (40 CFR 60, Appendix A) . . . . . . . . . . . . . . . . . . . . E-1

Appendix F Chemical Manufacturing Processes Subject to HONStandards (40 CFR 63, Subpart H) . . . . . . . . . . . . . . . . . . . . . . F-1

Appendix G Organic HAPs Subject to HON Standards (Subpart H) . . . . . G-1

Appendix H Manufacturing Processes and Organic HAPs Subject toHON Standards (Subpart I) . . . . . . . . . . . . . . . . . . . . . . . . . . . H-1

CONTENTS (continued)

VOLUME I: INSPECTION MANUAL

Chapter 1 Statement of Goals, Background, Approaches to RuleEnforcement, and Organization of Document

Chapter 2 ApplicabilityChapter 3 Compliance/Inspection Through Reports and RecordkeepingChapter 4 Compliance/Assessment Through On-Site InspectionsChapter 5 Recommended Inspection Techniques and ProceduresBibliography

VOLUME III: PETROLEUM REFINING INDUSTRY REGULATIONS

Appendix A Equipment Leak Regulations: Side-by-Side ComparisonsAppendix B Equipment Leak Regulations: Summary of DifferencesAppendix C Equipment Leak Regulations: Summary by Component

APPENDIX A

EQUIPMENT LEAK REGULATIONS: SIDE-BY-SIDE COMPARISONS

pageGENERAL ASPECTS OF RULEApplicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Exemptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2Equipment Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5Compliance Demonstrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5Method of Compliance Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6Requirements When More than One Standard Applies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

SPECIFIC COMPONENT SUMMARIESValves, Gas/Vapor or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7Valves, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10Alternative Standards for Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11Pumps, Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-13Pumps, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-15Pressure Relief Devices, Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17Pressure Relief Devices, Light Liquid or Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . A-18Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-19Sampling Connections Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-21Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-22Flanges and Connectors (All Services) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-23Connectors, Gas/Vapor or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-24Connectors, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-26Agitators, Gas/Vapor Service or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-27Agitators, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-30Instrumentation Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-31Product Accumulator Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-32Surge Control Vessels and Bottoms Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-33Closed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-34

DELAY OF REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-37

QUALITY IMPROVEMENT PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-39

EQUIVALENCE OF (or ALTERNATIVE) MEANS OF EMISSIONS LIMITATIONGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-45Batch Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-46Enclosed-Vented Process Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-48

TEST METHODS AND PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-49

RECORDKEEPING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-54

REPORTING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-67

SUMMARY OF REGULATIONS page A-1

General Aspects of RuleREGULATION

40 CFR part 60,Subpart VV

40 CFR part 61,Subpart J

40 CFR part 61,Subpart V

40 CFR part 63,Subpart H

40 CFR part 63,Subpart I

40 CFR part 264,Subpart BB


APPLICABILITY All equipment within aprocess unit in the syntheticorganic manufacturingindustry that commencesconstruction,reconstruction, ormodification after 1/5/81.

A list of SOCMI chemicalsproduced as intermediatesor final products by processunits is provided todetermine applicability.

Equipment that is operatedin benzene service.

Equipment operated involatile HAP (VHAP)service after the date forwhich part 61 regulationshave been promulgated.

Equipment in organic HAPservice operated at least300 hours per year atfacilities for which part 63regulations have beenadopted and that cross-reference this subpart.

A list of organic HAP isprovided to determineapplicability.

Equipment in organic HAPservice (see Definitions)operated at least 300 hoursper year in the followingtypes of processes: Styrene-butadiene rubber production;polybutadiene rubberproduction; processesproducing five specificagricultural chemicals;processes producing sixspecific types ofpolymers/resins or otherchemicals; pharmaceuticalprocesses using carbontetrachloride or methylenechloride; and five specifiedpolymers/resins.a

Specific HAPs aredesignated for determiningapplicability.

Equipment at facilities thattreat, store, or dispose ofhazardous wastes thatcontains or contactshazardous waste withorganic concentrations of atleast 10 percent by weightthat are managed in unitssubject to the permittingrequirements of part 270 orhazardous waste recyclingunits located at suchfacilities otherwise subject tothe permitting requirementsof part 270.










EXEMPTIONS Any affected facility withdesign capacity to produceless than 1,000 Mg peryear.

Any affected facility thatproduces heavy liquidchemicals only from heavyliquid feed or rawmaterials.

Any affected facility thatproduces beverage alcohol.

Any affected facility thathas no equipment in VOCservice. (Must maintaincertain recordsdemonstrating exemptionapplies.)

Coke by-product plants.

Any equipment in benzeneservice located at plantdesigned to produce or useless than 1,000 Mg ofbenzene per year.

Any process unit that hasno equipment in benzeneservice.

Exempt from part 60 ifsubject to part 61.

None specified. Research and developmentfacilities.

Exempt from part 60 andfrom part 61 if provisionsof Part 63 are effective.

Petroleum refining processunits.

Ethylene process units.

Equipment subject tosubpart which does notemit HAPs.

CMPUs located at coke by-product recovery plants.

Solvent reclamation,recovery, or recyclingoperations at hazardouswaste TSDFs that require a40 CFR part 270 permitthat are not part of aSOCMI CMPU.

Facilities that do not have thedesignated HAP(s) need onlydocument the basis for thisdetermination.

Research and developmentfacilities.

Exempt until no later thanApril 22, 1997, if plant siteemits less than 10 tpy of anyindividual HAP and less than25 tpy of any combination ofHAP.

None specified.

DEFINITIONS

"In gas/vapor service" The piece of equipmentcontains process fluid thatis in gaseous state atoperating conditions.

A piece of equipment contains process fluid that is in thegaseous state at operating conditions.

A piece of equipment in organic hazardous air pollutant(HAP) service contains a gas or vapor at operatingconditions.

The piece of equipmentcontains or contacts ahazardous waste stream thatis in the gaseous state atoperating conditions.

"In heavy liquid service" The piece of equipment isnot in gas/vapor service orin light liquid service.

Not applicable. A piece of equipment in organic HAP service is not ingas/vapor service or in light liquid service.

The piece of equipment isnot in gas/vapor service or inlight liquid service.










DEFINITIONS(continued)

"In light liquid service" The piece of equipmentcontains a liquid that meetsthe following conditions:

1. The vapor pressure ofone or more of thecomponents is greater than0.3 kPa at 20oC;

2. The total concentrationof pure components havinga vapor pressure greaterthan 0.3 kPa at 20oC isequal to or greater than 20percent by weight; and

3. The fluid is a liquid atoperating conditions.

Not applicable. A piece of equipment in organic HAP service contains aliquid that meets the following conditions:

1. The vapor pressure of one or more of the organiccompounds is greater than 0.3 kPa at 20oC;

2. The total concentration of the pure organic compoundshaving a vapor pressure greater than 0.3 kPa at 20oC is equalto or greater than 20 percent by weight of the total processstream; and

3. The fluid is a liquid at operating conditions.

The piece of equipmentcontains or contacts a wastestream that meets thefollowing conditions:

1. The vapor pressure ofone or more of thecomponents is greater than0.3 kPa at 20oC;

2. The total concentration ofpure components having avapor pressure greater than0.3 kPa at 20oC is equal to orgreater than 20 percent byweight; and

3. The fluid is a liquid atoperating conditions.

"In liquid service" Not applicable. A piece of equipment is not in gas/vapor service. A piece of equipment in organic HAP service is not ingas/vapor service.

Not applicable.

"In VOC service" The piece of equipmentcontains or contacts aprocess fluid that is at least10 percent VOC by weight.

The piece of equipment contains or contacts a process fluidthat is at least 10 percent VOC by weight and the piece ofequipment is not in heavy liquid service (as defined under40 CFR part 60, subpart VV).

The piece of equipment contains or contacts a process fluidthat is at least 10 percent VOC by weight and the piece ofequipment is not in heavy liquid service (as defined under 40CFR part 60, subpart VV).

Not applicable.

"In VHAP service" Not applicable. A piece of equipment either contains or contacts a fluid(liquid or gas) that is at least 10 percent by weight a volatilehazardous air pollutant (VHAP).

Not applicable. Not applicable.










DEFINITIONS(continued)

"In organic hazardousair pollutant or in

organic (HAP) service"

Not applicable. Not applicable. A piece of equipment eithercontains or contacts a fluid(liquid or gas) that is atleast 5 percent by weighttotal organic HAP.

A piece of equipment eithercontains or contacts a fluid(liquid or gas) that is at least5 percent by weight of thedesignated organic HAPlisted in §63.190(b) of thissubpart.

Not applicable.

"In benzene service" Not applicable. A piece of equipmentcontains or contacts a fluid(liquid or gas) that is atleast 10% benzene byweight.

Not applicable. Not applicable. Not applicable.

Equipment Each pump, compressor,pressure relief device,sampling connectionsystem, open-ended valveor line, valve, and flange orother connector in VOCservice and any devices orsystems required by thissubpart.

Each pump, compressor, pressure relief device, samplingconnection system, open-ended valve or line, valve, flangeor other connector, product accumulator vessel in VHAPservice, and any devices or systems required by thissubpart.

Each pump, compressor, agitator, pressure relief device,sampling connection system, open-ended valve or line,valve, connector, surge control vessel, bottoms receiver, andinstrumentation system in organic HAP service, and anydevices or systems required by this subpart.

Each valve, pump,compressor, pressure reliefdevice, sampling connectionsystem, open-ended valve orline, or flange or any devicesor systems required by thissubpart.

Process Unit (hazardouswaste management unit

for 40 CFR parts 264and 265)

Components assembled toproduce, as intermediate orfinal products, one or moreof the chemicals specifiedin §60.489. A process unitcan operate independentlyif supplied with sufficientfeed or raw materials andsufficient storage facilitiesfor the product.

Equipment assembled to produce a VHAP or its derivativesas intermediate or final products, or equipment assembledto use a VHAP in the production of a product. A processunit can operate independently if supplied with sufficientfeed or raw materials and sufficient product storagefacilities.

A chemical manufacturing process unit as defined in subpartF of this part, a process unit subject to the provisions ofsubpart I of this part, or a process unit subject to anothersubpart in 40 CFR part 63 that references this subpart.b

A contiguous area of land onor in which hazardous wasteis placed, or the largest areain which there is significantlikelihood of mixinghazardous waste constituentsin the same area.c










DEFINITIONS(concluded)

Repaired Equipment is adjusted, orotherwise altered, in orderto eliminate a leak asindicated by one of thefollowing: an instrumentreading of 10,000 ppm orgreater, indications ofliquids dripping, orindication by sensor that aseal or barrier fluid hasfailed.

Equipment is adjusted, or otherwise altered, to eliminate aleak.

Equipment is adjusted, or otherwise altered, to eliminate aleak as defined in the applicable sections of this subpart andunless otherwise specified in the applicable provisions of thissubpart, is monitored to verify that emissions are below theapplicable leak definition.

Equipment is adjusted, orotherwise altered, toeliminate a leak.

First Attempt at Repair To take rapid action for thepurpose of stopping orreducing leakage of organicmaterial to atmosphereusing best practices.

To take rapid action for the purpose of stopping or reducingleakage of organic material to atmosphere using bestpractices.

To take action for the purpose of stopping or reducingleakage of organic material to atmosphere followed bymonitoring to verify that the leak is repaired unless the owneror operator determines by other means that the leak is notrepaired.

To take rapid action for thepurpose of stopping orreducing leakage of organicmaterial to atmosphere usingbest practices.

EQUIPMENTIDENTIFICATION (seealso RecordkeepingRequirements)

Not specified. Marked in manner such that it can be readily distinguishedfrom other pieces of equipment.

Marked in manner such that it can be readily distinguishedfrom equipment not subject to this subpart (does not requirephysical tagging except for leaking equipment).

Marked in manner such thatit can be readilydistinguished from otherpieces of equipment.

COMPLIANCEDEMONSTRATIONS

Performance test requiredfor all equipment within180 days of initial startup.

Performance test required for all equipment within 180days of initial startup.

For existing sources, shall be in compliance within 90 daysafter the effective date of the applicable standard.

For new sources, shall be in compliance upon effective dateof the applicable standard.

Performance test required within 180 days of initial startup.

For existing sources, shall be in compliance no later than thefollowing dates: Group I: October 24, 1994 Group II: January 23, 1995 Group III: April 24, 1995 Group IV: July 24, 1995 Group V: October 23, 1995

For new sources, shall be in compliance upon initial startup,or the effective date of the applicable standard.

Not specified.










METHOD OFCOMPLIANCEDETERMINATION

Review of records andreports, review ofperformance test results,and inspections.

Review of records, review of performance test results, andinspections.

Review of records and reports, review of performance testresults, and inspections.

Not specified.

REQUIREMENTSWHEN MORE THANONE STANDARDAPPLIES

Not specified. A source subject to thissubpart that is also subjectto 40 CFR part 60 only willbe required to comply withthe provisions of thissubpart.

A source subject to thissubpart that is also subjectto 40 CFR part 60 only willbe required to comply withthe provisions of thissubpart.

Equipment subject to this subpart that are also subject to 40CFR part 60 or 40 CFR part 61 will be required to complyonly with the provisions of this subpart.

Any facility subject to thissubpart and 40 CFR part 60,subpart VV or 40 CFR part61, subpart V, may elect tocomply with this subpart orthe provisions in part 60 or61 to the extent that thedocumentation under theregulation at part 60 or part61 duplicates thedocumentation requiredunder this subpart.

a Processes producing styrene-butadiene rubber (butadiene and styrene emissions only). Processes producing polybutadiene rubber (butadiene emissions only). Processes producing the following agricultural chemicals (butadiene,carbon tetrachloride, methylene chloride, and ethylene dichloride emissions only): Captafol (R); Captan (R); Chlorothalonil; Dacthal; and Tordon (R) acid. Processes producing the following polymers/resins and other chemicals(carbon tetrachloride, methylene chloride, tetrachloroethylene, chloroform, and ethylene dichloride emissions only): Hypalon (R); Oxybisphenoxarsine/1,3-diisocyanate [OBPA (R)]; polycarbonates; polysulfide rubber; chlorinatedparaffins; and symmetrical tetrachloropyridine. Pharmaceutical production processes using carbon tetrachloride or methylene chloride (carbon tetrachloride and methylene chloride emissions only). Processes producing thefollowing polymers/resins and other chemicals (butadiene emissions only): tetrahydrophthalic anhydride (THPA); methlymethacrylate-butadiene styrene resins (MBS); butadiene-furfural cotrimer; methlymethacrylate-acrylonitrile-butadiene-styrene (MABS) resins; and ethylidene norbornene.

b "Chemical manufacturing process unit" means the equipment assembled and connected by pipes or ducts to process raw materials and to manufacture an intended product. A CMPU consists of more than one unit operation.For the purposes of this subpart, chemical manufacturing process unit includes air oxidation reactors and their associated product separators and recovery devices; reactors and their associated product separators and recoverydevices; distillation units and their associated distillate receivers and recovery devices; associated unit operations (as defined in this section) and associated recovery devices; and any feed, intermediate, and product storage vessels,product transfer racks, and connected ducts and piping. A chemical manufacturing process unit includes pumps, compressors, agitators, pressure relief devices, sampling connection systems, open-ended valves or lines, valves,connectors, instrumentation systems, and control devices or systems. A chemical process manufacturing unit is identified by its primary product.

c Examples of hazardous waste management units include a surface impoundment, a waste pile, a land treatment area, a landfill cell, an incinerator, a tank and its associated piping and underlying containment system and a containerstorage area. A container alone does not constitute a unit; the unit includes containers and the land or pad upon which they are placed.


SpecificComponentSummaries

REGULATION








VALVES, GAS/VAPOR OR LIGHT LIQUID SERVICE

Standards Monitor monthly.

After two consecutive months of no leaks, avalve may be monitored quarterly.

If leak detected, monitor valve monthly untilleak is not detected for two consecutivemonths.

Monitor monthly.



In Phases I and II, monitor each valvequarterly.

In Phase III, monitoring frequency based onpercent valves found leaking:

Percent Leaking Monitoring Frequency

> 2 Monthly or implement aquality implementationplan (QIP)

< 2 Quarterly < 1 Quarterly or once every

2 quarters 0.5 Quarterly or once every

4 quarters

(If >2% leaking valves at a plant site with lessthan 250 valves in organic HAP service: monitor quarterly.)

Existing Sources

Phase I: begins on compliance date.

Phase II: begins no later than one year afterthe compliance date.

Phase III: begins no later than 2 ½ years afterthe compliance date.

Monitor monthly.





REGULATION








VALVES, GAS/VAPOR OR LIGHT LIQUID SERVICE (continued)

Standards(concluded)

New Sources

Phase I: this phase is not applicable.

Phase II: begins upon facility startup.

Phase III: begins no later than one year afterinitial startup.

LeakDefinition

10,000 ppm 10,000 ppm Phase I: 10,000 ppmPhase II: 500 ppmPhase III: 500 ppm

10,000 ppm

Repair Repair as soon as practicable, no later than 15calendar days after detection.

First attempt within 5 calendar days ofdetection.

Repair as soon as practicable, no later than15 calendar days after detection.


Repair as soon as practicable, no later than 15calendar days after detection.


When repaired, monitor at least once withinfirst 3 months after repair.



First Attemptat RepairPractices

Best practices include, but are not limited to: - tightening of bonnet bolts - replacement of bonnet bolts - tightening of packing gland nuts - injection of lubricant into lubricated

packing


packing


packing


packing



REGULATION








VALVES, GAS/VAPOR OR LIGHT LIQUID SERVICE (concluded)

Exemptions Equipment in vacuum service.

"No detectable emissions" valves: less than500 ppm above background.

"Unsafe to monitor" valves: written plan tomonitor as frequently as practicable duringsafe to monitor times.

"Difficult to monitor" valves: written plan tomonitor at least once per year. No more than3.0 percent of valves in affected facility can bedesignated as difficult to monitor.

Equipment in vacuum service.



"Difficult to monitor" valves: written plan tomonitor at least once per year.


Equipment operated fewer than 300 hours peryear.


"Difficult to monitor" valves: written plan tomonitor at least once per year. No more than3.0 percent of valves in new facility can bedesignated as difficult to monitor.

Equipment located at plant sites with fewerthan 250 valves is exempt from monthlymonitoring; instead monitor once per quarteror comply with percent leak requirements for< 1% or 0.5%, as applicable.




"Difficult to monitor" valves: written plan tomonitor at least once per year.

No external activating mechanism in contactwith hazardous waste stream; is tested forcompliance initially, annually, and asrequested by the Regional Administrator

Valves designated as difficult to monitor athazardous waste management units inoperation prior to June 21, 1990, andowner/operator follows written plan thatrequires monitoring of valves at least once percalendar year.



REGULATION








VALVES, HEAVY LIQUID SERVICE

Standards Monitoring of potential leaks within 5calendar days of detection if evidence ofpotential leak is found by visual, auditory,olfactory, or other detection method.

Not applicable. Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, audible, olfactory, or otherdetection method.

Monitoring of potential leaks within 5calendar days of detection if evidence ofpotential leak is found by visual, audible,olfactory, or other detection method.

LeakDefinition

10,000 ppm Not applicable. Monitoring: 500 ppm 10,000 ppm



Not applicable. Repair as soon as practicable, no later than 15calendar after detection.


For equipment that are not monitored (Method21), repair shall mean that visual, olfactory orother indications of a leak have beeneliminated; no bubbles are observed atpotential leak sites during lead check withsoap solution; or system will hold a testpressure.





packing

Not applicable. Best practices include, but are not limited to: - tightening of bonnet bolts - replacement of bonnet bolts - tightening of packing gland nuts - injection of lubricant into lubricated

packing


packing

Exemptions Equipment in vacuum service. Not applicable. Equipment in vacuum service.





REGULATION








ALTERNATIVE STANDARDS FOR VALVES

Allowable Percentage of Valves Leaking

Standard Allowable percentage of leaking valves isequal to or less than 2.0 percent.

Notify Administrator of election to complywith alternative standard.

Conduct performance test initially, annually,and at other times as requested by theAdministrator.

Performance tests shall:

C Monitor all valves in gas/vapor and in lightliquid service within one week.

C Calculate percent leaking.


Conduct performance test initially, annually,and at other times as requested by theAdministrator.


CMonitor all valves in gas/vapor and in lightliquid service within one week.

CCalculate percent leaking.

CEqual to or less than 2.0 percent leaking.

Notify Administrator in writing when owneror operator elects to no longer comply withalternative standard.

Not applicable. Notify Regional Administrator of election tocomply with alternative standard.

Conduct performance test initially, annually,and at other times as requested by theRegional Administrator.


CMonitor all valves in gas/vapor and in lightliquid service within one week.

CCalculate percent leaking.

C Equal to or less than 2.0 percent leaking.

Notify Regional Administrator when owner oroperator elects to no longer comply withalternative standard.

LeakDefinition

10,000 ppm 10,000 ppm Not applicable. 10,000 ppm





Not applicable. Repair as soon as practicable, no later than 15calendar days after detection.




packing


packing


packing

Skip Period Leak Detection and Repair



REGULATION








Standard Notify Administrator of election to complywith alternative standard.

Comply initially with monthly LDAR, theneither:

1. After 2 consecutive quarters with equalto or less than 2 percent leakers, monitorsemiannually; or

2. After 5 consecutive quarters with equalto or less than 2 percent leakers, monitorannually.

Revert to monthly monitoring if percentleakers exceed 2 percent.

Keep record of percent leakers during eachleak detection.



1. After 2 consecutive quarters with equalto or less than 2 percent leakers,monitor semiannually.

2. After 5 consecutive quarters with equalto or less than 2 percent leakers,monitor annually.


Not applicable. Notify Regional Administrator of election tocomply with alternative standard.

Conduct performance test initially, annually,and at other times as requested by theRegional Administrator.


1. After 2 consecutive quarters with equalto or less than 2 percent leakers,monitor semiannually.

2. After 5 consecutive quarters with equalto or less than 2 percent leakers,monitor annually.


Notify Regional Administrator when owner oroperator elects to no longer comply withalternative standard.



REGULATION








PUMPS, LIGHT LIQUID SERVICE

Standards Pumps: Monitor monthly and conduct weeklyvisual inspections.

Pumps: Monitor monthly and conductweekly visual inspections. If located atunmanned plant site, visual inspectionsrequired at least monthly.

Pumps: Monitor monthly and conduct weeklyvisual inspections. If located at unmannedplant site, visual inspections required at leastmonthly.

Phase III: If the greater of either 10 percent ofpumps in a process unit (or source-wide) or 3pumps in a process unit (or source-wide) leak,then implement technology review andimprovement QIP. (This does not apply toprocess unit if more than 90% of the pumps inthe unit are either dual mechanical seal ordesigned with no externally activated shaftpenetrating the housing.)

Existing Sources

Phase I: begins on compliance date.

Phase II: begins no later than one year afterthe compliance date.

Phase III: begins no later than 2 ½ years afterthe compliance date.

New Sources

Phase I: this phase is not applicable.

Phase II: begins upon facility startup.

Phase III: begins no later than one year afterinitial startup.

Pumps: Monitor monthly and conduct weeklyvisual inspections.



REGULATION








PUMPS, LIGHT LIQUID SERVICE (continued)

LeakDefinition

10,000 ppm

Indications of liquids dripping from pump seal

10,000 ppm

Indications of liquids dripping from pumpseal

"Dual Mechanical Seal" Pumps: Indicationsof liquid dripping from pump seal wheremonitoring for VHAP indicates the presenceof VHAP (less background reading) and formonitoring total VOCs measures greater than10,000 ppm

Phase I: 10,000 ppm

Phase II: 5,000 ppm

Phase III: 5,000 ppm (polymerizingmonomers) 2,000 ppm (food/medical services) 1,000 ppm (all other pumps)

Indications of liquids dripping from pumpseal.

10,000 ppm

Indications of liquids dripping from pumpseal







Phase III pumps with leak definition of 1,000ppm: repair only required for pumps leaking at2,000 ppm or more




None specified. None specified. Best practices include, but are not limited to: - tightening of packing gland nuts - ensuring that the seal flush is operating

at design pressure and temperature

None specified.



REGULATION








PUMPS, LIGHT LIQUID SERVICE (concluded)


Any pump equipped with a compliant closed-vent system and control device.

"Dual Mechanical Seal" pumps: specificoperating and design requirements.

"No Detectable Emissions" pumps: less than500 ppm above background and specifieddesign requirements.


Any pump equipped with a compliantclosed-vent system and control device.



Any pump located at an unmanned site isexempt from weekly visual inspections anddaily sensor checks, provided each pump isinspected as often as practicable and at leastmonthly.


Any pump equipped with a compliant closed-vent system that transports leakage back to theprocess, fuel gas system, or to a compliantcontrol device.



No external shaft penetrating the pumphousing: weekly visual inspection.


Process units with more than 90% of pumpswith dual mechanical seal or closed-ventsystem are exempt from monthly calculationsof percent leaking pumps.

If at unmanned site, visually inspect as oftenas practicable and at least monthly.

Unsafe to monitor pumps are exempt ifmonitoring personnel would be exposed to animmediate danger and owner/operator has aplan that requires monitoring as often aspractical during safe to monitor times, but notmore frequently than the periodic monitoringschedule otherwise applicable.


Any pump equipped with a compliant closed-vent system and control device.





REGULATION








PUMPS, HEAVY LIQUID SERVICE


Not applicable. Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, auditory, olfactory, or otherdetection method.

Monitoring of potential leaks within 5calendar days of detection if evidence ofpotential leak is found by visual, auditory,olfactory, or other detection method.

LeakDefinition

10,000 ppm Not applicable. Monitoring: 2,000 ppm, unless handlingpolymerizing monomers - 5,000 ppm.

10,000 ppm



Not applicable. Repair as soon as practicable, no later than 15calendar after detection.







packing


packing


packing

Exemptions Equipment in vacuum service. Not applicable. Equipment in vacuum service.





REGULATION








PRESSURE RELIEF DEVICES, GAS/VAPOR SERVICE

Standards No detectable emissions, except duringpressure releases (less than 500 ppm abovebackground).

After each release, return to no detectableemissions within 5 calendar days as indicatedby monitoring of the pressure relief device.

No detectable emissions (less than 500 ppmabove background).


No Rupture Disk

No detectable emissions (less than 500 ppmabove background)

After each release, return to no detectableemissions within 5 calendar days as indicatedby monitoring of the pressure relied device.

With Rupture Disk

After each release, replace rupture disk within5 calendar days.



LeakDefinition

"No detectable emissions" - less than 500 ppmabove background.

"No detectable emissions" - less than 500ppm above background.



Repair Return to condition of "no detectableemissions" as soon as practicable but no laterthan 5 calendar days after pressure release.

Return to condition of "no detectableemissions" as soon as practicable but no laterthan 5 calendar days after pressure release.

Not applicable. Return to condition of "no detectableemissions" as soon as practicable but no laterthan 5 calendar days after pressure release.

Exemptions Pressure relief devices equipped with closed-vent system and control device.


Pressure relief devices equipped withcompliant closed-vent system and controldevice.


Pressure relief devices routed to a process orfuel gas system or equipped with compliantclosed-vent system and control device.



Any pressure relief device equipped with arupture disk meeting the requirements of therule.

Pressure relief devices equipped withcompliant closed-vent system and controldevice.




REGULATION








PRESSURE RELIEF DEVICES, LIGHT LIQUID OR HEAVY LIQUID SERVICE



Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, auditory, olfactory, or otherdetection method.


LeakDefinition

10,000 ppm 10,000 ppm Monitoring: 500 ppm 10,000 ppm





Repair as soon as practicable, no later than 15calendar after detection.







packing


packing


packing

Exemptions Equipment in vacuum service. Equipment in vacuum service. Equipment in vacuum service.





REGULATION








COMPRESSORS

Standards Equip with compliant seal system thatincludes a barrier fluid system and thatprevents leakage to atmosphere.

Seal system shall meet certain design andoperation requirements.

Install sensor to detect failure of seal system,barrier fluid system, or both.

Check sensor daily or equip with audiblealarm.

Establish criteria that indicates failure of sealsystem, barrier fluid system, or both.

Equip with seal system that includes a barrierfluid system and that prevents leakage toatmosphere.



Visually check sensor daily or equip withaudible alarm (unless located at unmannedplant site).





Check sensor daily or equip with audiblealarm that is checked monthly (unless locatedat unmanned plant site, then check daily).





Check sensor daily or equip with audiblealarm that is checked monthly; if at unmannedplant site, check daily.


LeakDefinition

Sensor indicates failure of seal system, barrierfluid system, or both based on establishedcriteria.

Sensor indicates failure of seal system,barrier fluid system, or both based onestablished criteria.











COMPRESSORS (concluded)



REGULATION









Compressors equipped with compliant closed-vent system and control device.

Compressors designed to operate with aninstrument reading less than 500 ppm abovebackground.

Reciprocating compressors that meet certaincriteria.


Compressors equipped with compliantclosed-vent system and control device.



Any compressors equipped with compliantclosed-vent system that returns to process, fuelgas system, or transports leakage back to theprocess or to a compliant control device.


Compressors operated fewer than 300 hoursper year in organic HAP service.


Compressors equipped with compliant closed-vent system and control device.




REGULATION








SAMPLING CONNECTION SYSTEMS

Standards Equipped with closed-purge, closed-loop, orclosed-vent system that returns the purgedprocess fluid to the process line, collects andrecycles the purged process fluid to a process,or is designed and operated to capture andtransport all the purged process fluid to acompliant control device.

Equipped with closed-purge system orclosed-vent system that either returns thefluid to the process line or collects andrecycles the purged fluid with zero VHAPemissions to the atmosphere, or captures andtransports all purged fluids to a compliantcontrol device.

Equipped with closed-purge system, closed-loop, or closed-vent system that either returnsthe fluid to the process, recycles the purgedfluid, send it to a compliant control device, orcollect, store, and transport it to an appropriatefacility.

Gases displaced during filling of samples arenot required to be collected or captured.

Equipped with closed-purge system or closed-vent system that either returns the fluid to theprocess line or collects and recycles thepurged fluid with zero VHAP emissions to theatmosphere, or captures and transports all thepurged hazardous waste stream to a compliantcontrol device.

LeakDefinition

Not applicable. Not applicable. Not applicable. Not applicable.

Repair Not applicable. Not applicable. Not applicable. Not applicable.


In-situ sampling systems and samplingsystems without purges.


In-situ sampling systems.


In-situ sampling systems and samplingsystems without purges.



In-situ sampling systems.

Sampling systems without purges.



REGULATION








OPEN-ENDED VALVES OR LINES

Standards Equip with cap, blind flange, plug, or secondvalve to seal open end at all time except whenoperations require flow through open end.

Second Valve

Close valve on process fluid end beforeclosing second valve

Double Block and Bleed System

Bleed valve or line may remain open duringoperations that require venting the linebetween the block valves, but comply withbasic standard at all other times.

Equip with cap, blind flange, plug, or secondvalve to seal open end at all time exceptwhen operations require flow through openend.

Second Valve

Close valve on process fluid end prior toclosing second valve


May remain open during operations thatrequire venting the line between the blockvalves, but comply with basic standard at allother times.

Equip with cap, blind flange, plug, or secondvalve to seal open end at all time except whenoperations require flow through open end orduring maintenance and repair.

Second Valve

Close valve on process fluid end prior toclosing second valve



Equip with cap, blind flange, plug, or secondvalve to seal open end at all time except whenoperations require flow through open end.

Second Valve

Close valve on hazardous waste stream endprior to closing second valve



LeakDefinition

Not applicable. Not applicable. Not applicable. Not applicable.

Repair Not applicable. Not applicable. Not applicable. Not applicable.

Exemptions Equipment in vacuum service. Equipment in vacuum service. Equipment in vacuum service.

Open-ended valves and lines in an emergencyshutdown system that are designed to openautomatically in the event of a process upset.


Equipment containing materials which wouldautomatically polymerize or cause a safetyhazard if capped or equipped with a doubleblock and bleed system.




REGULATION








FLANGES AND OTHER CONNECTORS (ALL SERVICES)

Standards Monitor within 5 days if evidence of apotential leak is found by visual, auditory,olfactory, or other detection methods.

Monitor within 5 days if evidence of apotential leak is found by visual, auditory,olfactory, or other detection methods.

(see Connectors, gas/vapor or light liquidservice)

Monitor within 5 days if evidence of apotential leak is found by visual, auditory,olfactory, or other detection methods.

LeakDefinition

10,000 10,000 (see Connectors, gas/vapor or light liquidservice)

10,000










packing


packing


Exemptions Equipment in vacuum service. Equipment in vacuum service. (see Connectors, gas/vapor or light liquidservice)




REGULATION








CONNECTORS, GAS/VAPOR OR LIGHT LIQUID SERVICE

Standards (see "Flanges and other connectors, allservices)

(see "Flanges and other connectors, allservices)

Initial Survey: Monitor all connectors within a12 month period

Subsequent monitoring frequency based onpercent leaking connectors:

C annual if $ 0.5%C once every 2 years if < 0.5%C once every 4 years if <0.5% during 2 year

monitoringC once every 2 years if 0.5 to <1% during 4

year monitoringC annual if >1% during 4 year monitoring

To comply with monitoring frequency of onceevery two years, monitor at least 40% of theconnectors in the first year and the remainderin the second year.

To comply with monitoring frequency of onceevery four years, monitor at least 20% eachyear until all have been monitored within 4years.

Connectors that have been opened orreconnected or have had the seal broken: Monitor for leaks within 3 months after beingreturned to organic HAP service or calculatepercent leakers by setting nonreparablecomponents to zero for all monitoring periods. May switch between these alternatives at endof monitoring period.

A switch in alternatives requires initialmonitoring no later than 12 months afterreporting the switch.




REGULATION








CONNECTORS, GAS/VAPOR OR LIGHT LIQUID SERVICE (concluded)

LeakDefinition



500 ppm (except for inaccessible, ceramic, orceramic-lined connectors)


Repair (see "Flanges and other connectors, allservices)


Repair as soon as practicable, but no later than15 calendar days after detection.

First attempt to repair within 5 calendar daysof detection.

When repaired, monitor at least once withinfirst 3 months of repair.


Exemptions (see "Flanges and other connectors, allservices)




"Unsafe to monitor" connectors: Written planto monitor as frequently as practicable duringsafe to monitor periods, but no morefrequently than the periodic scheduleotherwise applicable.

"Unsafe to repair" connectors: Repair by endof the next scheduled process unit shutdown.

"Inaccessible" or “ceramic” or “ceramic-lined”connectors: Repair any observed leak.




REGULATION








CONNECTORS, HEAVY LIQUID SERVICE

Standards (see "Flanges and other connectors, allservices)


Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, audible, olfactory, andother detection methods.


LeakDefinition



Monitoring: 500 ppm (see "Flanges and other connectors, allservices)

Repair (see "Flanges and other connectors, allservices)


Repair as soon as practicable, no later than 15calendar after detection.

For connectors in heavy liquid service that arenot monitored (Method 21), repair shall meanthat visual, audible, olfactory, or otherindications of a leak have been eliminated; nobubbles are observed at potential leak sitesduring leak check with soap solution; orsystem will hold a test pressure.


Exemptions (see "Flanges and other connectors, allservices)







REGULATION








AGITATORS, GAS/VAPOR SERVICE OR LIGHT LIQUID SERVICE

Standards Not applicable. Not applicable. “Non Dual Mechanical Seal” Agitators

Monthly monitoring and weekly visual checkfor indications of dripping liquid. If atunmanned site, visually inspect as often aspracticable and at least monthly.

"Dual Mechanical Seal" Agitators

Daily sensor check and weekly visualinspections for indications of dripping liquid.

Dual mechanical seal requirements:C Barrier fluid pressure at all times greater

than agitator stuffing box pressure, or

C Barrier fluid degassing reservoir routed to aprocess or fuel gas system or connected bya compliant closed-vent system to a controldevice, or

C Closed-loop system that purges the barrierfluid into a process stream.

Owner/operator determines criteria applicableto the presence and frequency of drips and tothe sensor that indicates failure of the sealsystem, the barrier fluid system, or both.

Not applicable.

AGITATORS, GAS/VAPOR SERVICE OR LIGHT LIQUID SERVICE (concluded)



REGULATION








LeakDefinition

Not applicable. Not applicable. “Non Dual Mechanical Seal” Agitators:

Monthly monitoring: 10,000 ppm

Weekly Visual: presence of indications ofdripping liquids

"Dual Mechanical Seal" Agitators:

Weekly Visual: if indications of drippingliquids, monitor and if reading is 10,000 ppmbased or higher, a leak is detected.

Drip Criteria: A leak is detected if the dripcriteria established are exceeded.

Sensor: A leak is detected if the sensorindicates failure of the seal system, the barrierfluid system, or both.

Not applicable.

Repairs Not applicable. Not applicable. Repair as soon as practicable, no later than 15days after detection.


Not applicable.



REGULATION








Exemptions Not applicable. Not applicable. Designed with no externally actuated shaftpenetrating the agitator housing.


Agitators operated fewer than 300 hours peryear in organic HAP service.

Any agitator equipped with a compliantclosed-vent system and control device.

“Difficult to monitor” agitators: less than 3%or agitators may be so marked.

“Unsafe to monitor” agitators: written plan tomonitor as frequently as practicable duringsafe to monitor periods, but no morefrequently than the periodic scheduleotherwise applicable.

Agitators obstructed by equipment piping thatprevents access by a monitor probe.

Agitators located at unmanned plant sites areexempt from weekly visual inspection anddaily sensor check if visually inspected asoften as possible and at least monthly.

Not applicable.



REGULATION








AGITATORS, HEAVY LIQUID SERVICE

Standards Not applicable. Not applicable. Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, audible, olfactory, or otherdetection method.

Not applicable.

LeakDefinition

Not applicable. Not applicable. Monitoring: 10,000 ppm Not applicable.

Repair Not applicable. Not applicable. Repair as soon as practicable, no later than 15calendar after detection

For agitators in heavy liquid service that arenot monitored (Method 21), repair shall meanthat visual, audible, olfactory, or otherindications of a leak have been eliminated; nobubbles are observed at potential leak sitesduring leak check with soap solution; orsystem will hold a test pressure.

Not applicable.

Exemptions Not applicable. Not applicable. Equipment in vacuum service.


Not applicable.



REGULATION








INSTRUMENTATION SYSTEMS

Standards Not applicable. Not applicable. Monitoring of potential leaks within 5 calendardays of detection if evidence of potential leakis found by visual, audible, olfactory, or otherdetection method.

Not applicable.

LeakDefinition

Not applicable. Not applicable. Monitoring: 500 ppm Not applicable.

Repair Not applicable. Not applicable. Repair as soon as practicable, no later than 15calendar after detection.

For instrumentation systems that are notmonitored (Method 21), repair shall mean thatvisual, audible, olfactory, or other indicationsof a leak have been eliminated; no bubbles areobserved at potential leak sites during leakcheck with soap solution; or system will hold atest pressure.

Not applicable.

Exemptions Not applicable. Not applicable. Equipment in vacuum service.


Not applicable.



REGULATION








PRODUCT ACCUMULATOR VESSELS

Standards Not applicable. Compliant closed-vent system and controldevice.

(see Surge Control Vessels and BottomsReceivers)

Not applicable.

LeakDefinition

Not applicable. Not applicable. (see Surge Control Vessels and BottomsReceivers)

Not applicable.

Repair Not applicable. Not applicable. (see Surge Control Vessels and BottomsReceivers)

Not applicable.

Exemptions Not applicable. Equipment in vacuum service. (see Surge Control Vessels and BottomsReceivers)

Not applicable.



REGULATION








SURGE CONTROL VESSELS AND BOTTOMS RECEIVERS

Standards Not applicable. (see Product Accumulator Vessels) Use of closed-vent system that routes theorganic vapors either back to process or tocompliant control device.

Comply with the requirements for fixed roofswith internal or external floating roofs.

Not applicable.

LeakDefinition

Not applicable. (see Product Accumulator Vessels) Not applicable. Not applicable.

Repair Not applicable. (see Product Accumulator Vessels) Not applicable. Not applicable.

Exemptions Not applicable. (see Product Accumulator Vessels) Surge control vessels routed back to process.



Surge control vessels that do not meet certaincapacity and vapor pressure criteria; seeTables 2 and 3 of Subpart H.

Not applicable.



REGULATION








CLOSED VENT SYSTEMS AND CONTROL DEVICES

Standards Control devices and closed-vent systems to beoperated at all times that emissions may bevented to them.

Control Devices

Vapor recovery systems: 95 percent orgreater recovery

Combustion devices: 95 percent or greaterreduction or minimum residence time of 0.75seconds and minimum temperature of 816oC.

Flares: Comply with §60.18

Closed-Vent Systems (CVS)

Hard pipe construction: Initial inspection(Method 21) and then annual visualinspections.

Ductwork construction: Initial and annualinspections using Method 21.

Does not apply if CVS is in vacuum service.

Control devices and closed-vent systems tobe operated at all times that emissions maybe vented to them.

Control Devices

Vapor recovery systems: 95 percent orgreater recovery

Combustion devices: 95 percent or greaterreduction or minimum residence time of 0.50seconds and minimum temperature of 760oC.

Flares: Comply with §60.18


No detectable emissions (less than 500 ppmabove background) and no visual indications.

Control devices and closed-vent systems to beoperated at all times that emissions may bevented to them.

Control devices subject to 40 CFR 63 subpartH and 40 CFR 264 subpart BB or 40 CFR 265subpart BB may comply with the monitoring,recordkeeping and reporting requirements ofsubpart H or of parts 264 and/or 265.

Recovery or Recapture Devices:

Vapor recovery systems: 95 percent or greaterrecovery or an exit concentration of 20 ppmv,whichever is less stringent.

Combustion devices: 95 percent or greaterreduction or 20 ppmv on any basis, correctedto 3% O2, whichever is less stringent; orminimum residence time of 0.50 seconds andminimum temperature of 760oC.

Flares: Comply with §63.11(b).


Hard pipe construction: Initial inspection(Method 21) and then annual visualinspections.

Ductwork construction: Initial and annualinspections using Method 21.

Does not apply if CVS is in vacuum service.

Control devices and closed-vent systems to beoperated at all times that emissions may bevented to them.

Control Devices

Vapor recovery systems: 95 percent orgreater recovery unless total organic emissionlimits of 1.4 kg/hr (12.8 Mg/yr) for allaffected processes can be attained at anefficiency of less than 95 percent.

For carbon adsorbers, carbon replacementintervals specified.

Combustion devices: 95 percent or greaterreduction; 20 ppmv total organic compoundconcentration; or minimum residence time of0.50 seconds and minimum temperature of760oC.

Boilers and process heaters: Introduce ventstream into flame combustion zone.

Flares: Flame present at all times, no visibleemissions (except for periods not to exceed atotal of 5 minutes during any 2 consecutivehours), basic requirements for heat contentand exit velocities.





REGULATION








CLOSED VENT SYSTEMS AND CONTROL DEVICES (continued)

Monitoring Control Devices: Monitor to ensure operatedand maintained in conformance with theirdesigns.

Closed-Vent Systems: If contains by-passlines, (1) vent stream flow meters or (2) car-seal or lock-and-key type of configurationwith monthly visual inspection required. Inspect initially, annually, and at other timesas requested by the Administrator.

Hard pipe construction: Method 21 for initialinspection, annual visual inspections.

Duct Work construction: Method 21 for initialand annual inspections.

Control Devices: Monitor to ensure operatedand maintained in conformance with theirdesigns.

Closed-Vent Systems: Initially, annually,and at other times as requested by theAdministrator.

Control Devices: Monitor to ensure operatedand maintained in conformance with theirdesigns.

Closed-Vent Systems: If contains by-passlines: install, set or adjust and maintain ventstream flow indicator installed at entrance toany bypass line or (1)vent stream flow metersor (2) car-seal or lock-and-key type ofconfiguration with monthly visual inspectionrequired.

Control Devices: Monitor to ensure operatedand maintained in conformance with theirdesigns. Specific requirements identified forvent stream flow monitors and other monitorsfor specific types of control devices.

Closed-Vent Systems: Initially, annually, andat other times as requested by theAdministrator.

LeakDefinition

> 500 ppm or above background

Visual inspection

500 ppm

Visual inspection

500 ppm

Visual inspection

CVS: detectable emissions ($500 abovebackground)

Repair Repair as soon as practicable, but no later than15 calendar days after detection.


Repair as soon as practicable, but no laterthan 15 calendar days after detection.








REGULATION








CLOSED VENT SYSTEMS AND CONTROL DEVICES (concluded)


"Unsafe to inspect" parts: inspect asfrequently as practicable during safe to inspecttimes.

"Difficult to inspect" parts: inspect at leastonce every 5 years.

Equipment in vacuum service. Equipment in vacuum service.

“Unsafe to inspect” parts: inspect as frequentlyas practicable but not more than once per year.

“Difficult to inspect” parts: inspect at leastonce every 5 years.

Equipment in organic HAP service fewer than300 hours per year.

Equipment needed for safety purposes are notsubject to these monitoring requirements.


Equipment that contains or contacts ahazardous waste of at least 10% by weight forfewer than 300 hours per year.

“Unsafe to monitor” parts: monitor asfrequently as possible during safe to monitortimes.


Delay of RepairREGULATION








General Allowed if repair is technically infeasiblewithout a process unit shutdown.

Repair to occur before end of next processunit shutdown.

Allowed for equipment isolated from theprocess and that does not remain in VOCservice.

Allowed if repair is technically infeasiblewithout a process unit shutdown.

Repair to occur before end of next processunit shutdown.

Allowed for equipment isolated from theprocess and that does not remain in VHAPservice.

Allowed if repair is technically infeasiblewithout a process unit shutdown.

Repair to occur before end of next process unitshutdown.

Allowed for equipment isolated from theprocess and that does not remain in organicHAP service.

Allowed if repair is technically infeasiblewithout a hazardous waste management unitshutdown.

Repair to occur before end of next hazardouswaste management unit shutdown.

Allowed for equipment isolated from the unitand that does not continue to contain orcontact hazardous waste with organicconcentrations of at least 10 percent byweight.

Valves(including

connectors andagitators for 40

CFR part 63only)

Allowed if:

Emissions of purged material resulting fromimmediate repair greater than the fugitiveemissions likely to result from the delay inthe repair and purged material is collectedand destroyed or recovered in compliantcontrol device when procedures are effected.

Delay beyond a process unit shutdownallowed if valve assemblies have beendepleted and valve assembly supplies hadbeen sufficiently stocked before supplieswere depleted.

Not allowed beyond next process unitshutdown, unless next process unit shutdownoccurs sooner than 6 months after firstprocess unit shutdown.

Allowed if:


Delay beyond a process unit shutdownallowed if valve assemblies have beendepleted, valve assembly supplies had beensufficiently stocked before supplies weredepleted.

Not allowed unless next process unitshutdown occurs sooner than 6 months afterfirst process unit shutdown.

Allowed if:

Emissions of purged material resulting fromimmediate repair greater than the fugitiveemissions likely to result from the delay in therepair and purged material is collected anddestroyed or recovered in compliant controldevice when procedures are effected.

Delay beyond a process unit shutdownallowed if valve assemblies have beendepleted, valve assembly supplies had beensufficiently stocked before supplies weredepleted.

Not allowed beyond the second process unitshutdown unless the third process unitshutdown occurs sooner than 6 months afterfirst process unit shutdown.

Allowed if:


Delay beyond a hazardous wastemanagement unit shutdown allowed if valveassemblies have been depleted, valveassembly supplies had been sufficientlystocked before supplies were depleted.

Not allowed unless next unit shutdownoccurs sooner than 6 months after first unitshutdown.










Pumps Allowed if:

Repair requires use of DMS seal system thatincludes barrier fluid and

Repair completed as soon as practicable, butnot later than 6 months after leak wasdetected.

Allowed if:



Allowed if:

Repair requires replacing existing seal designwith a new system that provides betterperformance under provisions of a QIP orusing a DMS, a pump designed with noexternally actuated shaft, or a compliantclosed-vent system and control device.

Repair completed as soon as practicable, butnot later than 6 months after leak was detected.

Allowed if:



Closed-VentSystems and

Control Devices

Allowed if emissions resulting from delay ofrepair would be greater than fugitiveemissions from delay of repair. Repairrequired by end of next process unitshutdown.

Not applicable. Allowed if emissions resulting from delay ofrepair would be greater than fugitive emissionsfrom delay of repair. Repair required by endof next process unit shutdown.

Allowed if emissions resulting from delay ofrepair would be greater than fugitiveemissions from delay of repair. Repairrequired by end of next process unitshutdown.


QualityImprovement

Programs

REGULATION








Applicability Not applicable. Not applicable. Valves

Optional in phase III to owners\operators with <2% leakers.

Decision required within first year of phase III.

If rolling average of percent leakers is <2% for 2consecutive quarters: (1) comply with QIP, (2) comply with§63.168, or (3) comply with both QIP and §63.168.

If comply with §63.168 only, can not use QIP again if leakrate goes above 2 percent; monthly monitoring is required.

If not continuing QIP (i.e., complying with valve standard)cannot use QIP again if leak rate goes above 2%; monthlymonitoring is required.

If complying with both QIP and valve standard,owner/operator may use the following monitoringfrequencies: - if <2% leaking, then monitor once per quarter - if <1% leaking, then once every 2 quarters - if <0.5% leaking, then once every 4 quarters

Pumps

Required in phase III if 6 month rolling average is thegreater of either >10% or 3 pumps leaking.

Once <10% or <3 pumps (6 month rolling average) leakingis achieved, comply with §63.163.

If leak rate again exceeds the greater of either >10% or 3pumps leaking, can use QIP again.

Not applicable.


QualityImprovement

Programs

REGULATION








Valves,Demonstration

of FurtherProgress

Not applicable. Not applicable. Comply with valve standard except monitor quarterly.

Collect data and maintain records as follows:

C maximum instrument reading observed in eachmonitoring observation before repair, response factor foreach stream, instrument model number, and date ofobservation

C classification of valve "gas or light liquid service"

C repair method used and instrument readings after repair(monitoring required at least once within the first 3months after the repair is completed)(ID tag on a leakingvalve may be removed after the valve successfully passesthis monitoring period)

Continue to collect data on the valves for as long as theprocess unit is in QIP

Demonstrate progress in reducing the percent leaking valveseach quarter by at least:

C 10 percent (meaning that each quarter there is at least a10 percent reduction in the percent leaking valves fromthe preceding monitoring period) [calculation to be madeby formula specified in §63.175(d)(4)(i)], or

C alternative quarterly percent reduction [calculatedaccording to the equation in §63.175(d)(4)(iii)(A)] and toless than 2 percent within 2 years.

The provisions for failure to meet the 10 percent reductionfor 2 consecutive rolling averages are:

C a choice of monthly monitoring, or

C implementation of a QIP for technology review asspecified in §63.175(e).


QualityImprovement

Programs

REGULATION








Valves,TechnologyReview and

Improvement

Not applicable. Not applicable. Data collection for the valves as long as in QIP:

C Valve type and manufacturer, valve design, materials ofconstruction, packing material, and year installed.

C Service characteristics of the stream (e.g., operatingpressure, temperature, line diameter, corrosivity).

C Whether in gas/vapor or light liquid service.

C If a leak is detected, the maximum instrument readingobserved before a repair, response factor for stream ifadjusted, instrument model number, and date ofobservation.

C If a leak is repaired, repair methods used and theinstrument readings after the repair.

Inspect all valves removed due to leaks to determine causeof failure and recommend design and other changes toreduce leak potential.

Analyze data to determine the services, operating andmaintenance procedures, and valve designs or technologiesthat have poorer than average emission performance andthose that have better than average emission performance. The first analysis shall be completed no later than 18months after the start of Phase III, shall use a minimum of 6months of data, shall be done yearly for as long as theprocess unit is in the QIP program.

Superior valve performance is defined as:C technology for valves having a leak frequency of <2%

for specific applications in process unit.C technology has low emission performance and is capable

of achieving <2% leaking valves in process unit.

Not applicable.


QualityImprovement

Programs

REGULATION








Valves,TechnologyReview and

Improvement(concluded)

Not applicable. Not applicable. Trial evaluation program is required for plants that have notdemonstrated superior performing valve designs andtechnologies:

1. The number of valves in the trial program shall be thelesser of 1 percent or 20 valves for programs involvingsingle process units and the lesser of 1 percent or 50 valvesfor programs involving groups of process units.

2. The program shall specify and include designdocumentation of:C superior performing valve designs or technologiesC stages of evaluating these valve designs or technologiesC frequency of monitoring or inspectionC range of operating conditions component will be

evaluated underC conclusions regarding the emission performance and

appropriate operating conditions and services

The performance trials shall be conducted for a 6-monthperiod beginning no later than 18 months after thebeginning of the QIP.

Conclusions will be drawn no later than 24 months after thebeginning of the QIP.

Any plant site with fewer than 400 valves and owned by acompany with fewer than 100 total employees is exemptfrom the trial evaluations of valves. These exempted plantsshall begin the program at the start of the fourth year ofPhase III.

If superior emission performance technology can not beidentified, replacement valve shall be one with lowestemission performance technologies identified for thespecific application.

Not applicable.


QualityImprovement

Programs

REGULATION








Pumps,TechnologyReview and

Improvement

Not applicable. Not applicable. Data collection:

C Pumps: type and manufacturer, seal type andmanufacturer, pump design, materials of construction,barrier fluid or packing material, and year installed.

C Service characteristics of the stream, discharge pressure,temperature, flow rate, corrosivity, and annual operatinghours.

C Maximum instrument readings observed before repair,response factor for the stream, instrument number, anddate of observation.

C If a leak is detected, repair methods used and theinstrument readings after the repair.

Inspect all pumps or pump seals that exhibit frequent sealfailure and were removed due to leaks. Inspection shalldetermine probable cause and recommendation for designchanges or changes in specifications to reduce leakpotential.

Analyze data to determine the services, operating andmaintenance procedures, and pumps and pump seal designsor technologies that have poorer than average emissionperformance and those that have better than averageemission performance. The first analysis shall be completedno later than 18 months after the start of the program, shalluse a minimum of 6 months of data, shall be done yearly foras long as the process unit is in the QIP program.

Not applicable.


QualityImprovement

Programs

REGULATION








Pumps,TechnologyReview and

Improvement(concluded)

Not applicable. Not applicable. Superior pump performance is defined as:C pumps or pump seals that will result in < 10% leaking

pumps in the process unit.C includes material or design changes to the existing pump,

pump seal, seal support system, installation of multiplemechanical seals or equivalent, or pump replacement.

Trial evaluation program is required for plants that have notdemonstrated superior technologies:

1. The number of pump seal technologies or pumps in thetrial program shall be the lesser of 1 percent or 2 pumps forprograms involving single process units and the lesser of 1percent or 5 pumps for plant sites or groups of process units. The minimum number of pumps or pump seal technologiesin the program shall be 1; and

2. The program shall specify and include designdocumentation of the following:C superior performing pump seal designs or technologiesC stages of evaluating these pump designs or pump seal

technologiesC frequency of monitoring or inspectionC range of operating conditions component will be

evaluated underC conclusions regarding the emission performance and

appropriate operating conditions and services

The performance trials shall be conducted for a 6-monthperiod beginning no later than 18 months after thebeginning of the QIP.

Conclusions will be drawn no later than 24 months after thebeginning of the QIP.

Beginning at the start of the third year of the QIP for plantswith 400 or more valves or 100 or more employees and atthe start of the fourth year for others, the owner/operatorshall replace the pumps and pump seals that are not superiortechnology. Pumps or pump seals shall be replaced at therate of 20 % per year and shall continue to be replaced untilall are superior technology.

Not applicable.


Equivalence of (orAlternative) Means

of EmissionLimitation:

General

REGULATION








Equipment, Design,and OperationalRequirements

Owner/operator collect and verify test datato demonstrate equivalence.

Administrator compares test data.

Administrator may condition approval.

Owner/operator collect and verify test datafor alternative means of emission limitation.



Administrator compares test data.


Not applicable.

Work Practices Owner/operator collect and verify test datato demonstrate equivalence.

Owner/operator demonstrates emissionreduction achieved by required workpractice.

Owner/operator demonstrates emissionreduction achieved by equivalent means ofemission limitation.

Owner/operator commits to alternative workpractices.

Administrator compares demonstratedemission reductions.



Owner/operator demonstrates emissionreduction achieved by required workpractice (for minimum of 12 months).

Owner/operator demonstrates emissionreduction achieved by alternative means ofemission limitation.

Owner/operator commits in writing to workpractices that provide for emissionreductions equal to or greater than emissionreductions achieved by required workpractices.




Owner/operator demonstrates emissionreduction achieved by required workpractice (for minimum of 12 months).

Owner/operator demonstrates emissionreduction achieved by alternative means ofemission limitation.

Owner/operator commits to alternative workpractices.



Not applicable.

Unique Approach Owner/operator may offer unique approachto demonstrate equivalency.

Owner/operator may offer unique approachto demonstrate equivalency.

Owner/operator may offer unique approachto demonstrate equivalency.

Not applicable.

Manufacturers ofEquipment

May apply for determination of equivalencyfor equipment, design, and operationalrequirements.



Not applicable.


Alternative Meansof EmissionLimitations:

Batch Processes

REGULATION

40 CFR part 60,subpart VV

40 CFR part 61,subpart J

40 CFR part 61,subpart V

40 CFR part 63,subpart H

40 CFR part 63,subpart I


40 CFR part 265,subpart BB

Monitoring Option Not applicable. Not applicable. Not applicable. The batch processes provision is an alternative to complying with §§63.163 through63.171 and §§63.173 through 63.176. Under the monitoring option for batch processes,the standards are similar to those for continuous processes with the monitoringfrequency prorated to time in use of organic HAP.

Each time equipment is reconfigured for the production of a new product, thereconfigured equipment is to be monitored for leaks within 30 days of start-up. Thisinitial monitoring of the reconfigured equipment can not be used in determining percentleaking equipment in the process unit.

Connectors are to be monitored in accordance with §63.174.

Equipment other than connectors are to be monitored based on the frequencies shownbelow, which can be adjusted to accommodate process operations:

BATCH PROCESS EQUIPMENT MONITORING FREQUENCIES(other than connectors)

Not applicable.

Batch Process Timein Use (% of year)

Equivalent Continuous ProcessMonitoring Frequency

Monthly Quarterly Semiannually

0 to < 25% quarterly annually annually

25 to < 50% quarterly semiannually annually

50 to < 75% bimonthly three times a year semiannually

75 to 100% monthly quarterly semiannually

If a leak is detected, it must be repaired as soon as practicable, but no later than 15calendars after detection. Delay of repair is allowed if equipment supplies have beendepleted and supplies had been sufficiently stocked before their depletion and the repairis made no later than 10 calendar days after delivery of the replacement equipment.



Batch Processes

REGULATION

40 CFR part 60,subpart VV

40 CFR part 61,subpart J

40 CFR part 61,subpart V

40 CFR part 63,subpart H

40 CFR part 63,subpart I


40 CFR part 265,subpart BB

Pressure TestOption

Not applicable. Not applicable. Not applicable. Monitor for leaks when the equipment is in organic HAP service, in use with anacceptable surrogate volatile organic compound which is not an organic HAP, or is inuse with any other detectable gas or vapor.

Each time equipment is reconfigured for production of a different product orintermediate, the batch process train is to be pressure-tested for leaks before organicHAP is first fed into the equipment.

Pressure test new or disturbed equipment when a batch process train is reconfigured.

Pressure testing not required for routine seal breaks, such as changing hoses and filters.

Batch process equipment test using either:C procedures specified for pressure or vacuum loss [see §63.180(f)] orC procedures specified for using a liquid [see §63.180(g)]

Each batch process that operates in organic HAP service during a calendar year must bepressure tested at least once during that same calendar year.

For pressure or vacuum tests, a leak is detected if the rate of pressure change in excessof 6.9 kilopascals (1 psig) in 1 hour; or if there is visible, audible, or olfactory evidenceof fluid loss.

For pressure tests using a liquid, a leak is detected if there are indications of drippingliquid or other evidence of fluid loss from process units.

When leaks are detected, repairs must be made and a retest conducted before startup ofthe process.

If the process unit fails this retest or the second of 2 consecutive pressure tests, theequipment must be repaired as soon as practicable but not later than 30 calendar daysafter the second pressure test.

Not applicable.



Enclosed-VentedProcess Units

REGULATION








Not applicable. Not applicable. Process units enclosed such that allemissions from equipment leaks are ventedthrough a closed-vent system to a controldevice are exempt from the requirements of§§63.163 through 63.171 and §§63.173 and63.174.

Enclosure is to be maintained under negativepressure at all times the process unit is inoperation.

Not applicable.


Test Methods andProcedures

REGULATION








Monitoring Methodand Technique

Method 21 of 40 CFR part 60, Appendix A

Test each piece of equipment unlessdemonstration is made that equipment is notin VOC service


Instrument to meet performance criteria ofMethod 21

Traverse probe around all potential leakinterfaces as close as possible as describedin Method 21


Instrument to meet performance criteria ofMethod 21 except:

C response factor criteria is for the averagecomposition of the process fluid, not eachindividual VOC in stream

C for process streams that contain inerts thatare not organic HAPs or VOC, averagestream response factor is calculated on aninert-free basis

If no instrument available that meet all Method21 criteria, then instrument readings may beadjusted as specified.

Monitor all equipment while it is "in service"


Instrument to meet performance criteria ofMethod 21

Traverse probe around all potential leakinterfaces as close as possible as described inMethod 21

Calibration Before use each day of use

Procedures specified in Method 21

Calibration gases used:

C zero air (less than 10 ppm hydrocarbon inair)

C mixture of methane or n-hexane and airat about, but less than, 10,000 ppmmethane or n-hexane

Before use each day of use




C mixture of methane or n-hexane and air atabout, but less than, 10,000 ppm methaneor n-hexane




C zero air (less than 10 ppm of hydrocarbon inair)

C Phase I: mixture of methane in air atconcentration of about, but less than, 10,000ppm

C Phase II: mixture of methane in air atconcentration of about, but less than:

10,000 ppm for agitators 5,000 ppm for pumps 500 ppm for all other equipment





C mixture of methane or n-hexane and air atabout, but less than, 10,000 ppm methaneor n-hexane



REGULATION








Calibration(concluded)

C Phase III: mixture of methane in air atconcentration of about, but less than:

10,000 ppm for agitators2,000 ppm for pumps in food/ medicalservice5,000 ppm for pumps in polymerizingmonomer service1,000 ppm for all other pumps500 ppm for all other equipment

Phases II and III exception: under certainconditions may calibrate up to 2,000 ppmhigher than the leak definition

"No detectableemissions"monitoring

Background level determined by Method 21

Traverse probe as close to the potential leakinterface as possible as described in Method21

Calculate arithmetic difference between themaximum concentration indicated by theinstrument and the background levelcompared to 500 ppm to determinecompliance





Traverse probe as close to the potential leakinterface as possible as described in Method 21

Calculate arithmetic difference between themaximum concentration indicated by theinstrument and the background level comparedto 500 ppm to determine compliance






REGULATION








Not "in service"demonstration

Equipment must be demonstrated not to bein VOC service (i.e., VOC content nevergreater than 10% by weight).

For demonstration:

Use procedures that conform to ASTM E-260, E-168, E-169 to determine percentVOC in process fluid that is contained orcontacts a piece of equipment.

Engineering judgement may be used toestimate the VOC content if piece ofequipment had not been shown previouslyto be in VOC service.

Administrator will require use of ASTMMethod D-2267b in event of disagreementto determine VOC content.

Compounds determined by EPA to havenegligible photochemical reactivity can beexcluded in determining VOC content of aprocess fluid.

Equipment is presumed to be in VHAPservice unless demonstrated that the VHAPcontent can never reasonably expected toexceed 10 percent by weight.

For demonstration:

Use procedures that conform to ASTMMethod D-2267.

Engineering judgment may be used todetermine percent VHAP clearly does notexceed 10 percent.

Administrator will require use of ASTMMethod D-2267 in event of disagreement todetermine VOC content.

If owner or operator determines that a pieceof equipment is in VHAP service,determination can only be revised byfollowing demonstration procedures.

Equipment is presumed to be in organic HAPservice unless demonstrated that the organicHAP content can never reasonably expected toexceed 5 percent by weight.

For demonstration:

Use Method 18 of 40 CFR part 60, appendix Ato determine percent organic HAP.

Engineering judgment may be used todetermine percent organic HAP does notexceed 5 percent.

Owner/operator may instead determine organicHAP content does not exceed 5 percent byweight.

Test each component to determine whether itcontains or contacts a hazardous waste withorganic concentration of 10 percent byweight or greater.

For demonstration:

Use ASTM Methods D 2267-88, E 169-87, E168-88, E260-85, or Method 9060 or 8240 ofSW-846.

Engineering judgment may be used toestimate organic concentration.

Regional Administrator will require the useof ASTM Methods D 2267-88, E 169-87, E168-88, E260-85, or Method 9060 or 8240 ofSW-846 in the event of disagreement todetermine VOC content.

If owner or operator determines that a pieceof equipment contains or contacts ahazardous waste with an organicconcentration of at least 10% be weight, thedetermination can only be revised byfollowing the demonstration procedures.

Samples Representative of process fluid that iscontained in or contacts the equipment orthe gas being combusted in flare.

Representative of process fluid that iscontained in or contacts the equipment or thegas being combusted in flare.

Representative of process fluid that is containedin or contacts the equipment.

Representative of the highest total organiccontent hazardous waste that is contained inor contacts the equipment.

Vapor pressures Standard reference texts orASTM D-2879

Not specified. Standard reference texts or ASTM D-2879-86



REGULATION








Flare Compliance Visible emissions: Method 22

Presence of flame: thermocouple orequivalent

Exit velocity: Method 2, 2A, 2C, or 2D

Component concentration: Method 18 andASTM D 2504-67

Net Heat of Combustion: Published valuesor ASTM D 2382-76, if published valuesnot available or cannot be calculated

Visible emissions: Method 22



Concentration: Method 18 or ASTMD2509-67.

Net Heat of Combustion: published value orASTM D2382-76, if published values notavailable or cannot be calculated


Presence of flame: thermocouple or equivalent


Concentration: Method 18



Presence of flame: heat sensing monitoringdevice with a continuous recorder thatindicates the continuous ignition of the pilotflame




Batch Processes -Pressure Test withGas or Vacuum

Not applicable. Not applicable. Pressurize to operating pressure or place undervacuum

Turn off once test pressure or vacuum isobtained

Test for at least 15 minutes

Calculate change in pressure

Use pressure measurement device withaccuracy of +2.5 millimeters of mercury

Alternative equivalent procedures are allowedprovided alternative is capable of detecting apressure loss or rise.

Not applicable.



REGULATION








Batch Processes -Pressure Test with

Liquid

Not applicable. Not applicable. Fill with test liquid until normal operatingpressure is obtained.

Test for at least 60 minutes, unless test failsbefore then.

Inspect each seal for indications of fluid loss. Ifindications are found, a leak is detected.

Alternative equivalent procedures are allowedprovided alternative is capable of detectingfluid loss.

Not applicable.


RecordkeepingRequirements

REGULATION








ConsolidatedRecordkeeping

An owner or operator of more than oneaffected facility subject to this subpartmay use one recordkeeping system if thesystem identifies each record by facility.

An owner or operator of more than oneprocess unit subject to this subpart mayuse one recordkeeping system if thesystem identifies each record by processunit.

An owner or operator of more than oneprocess unit subject to this subpart mayuse one recordkeeping system if thesystem identifies each record by processunit and the program being implementedfor each type of equipment.

An owner or operator of more than onehazardous waste management unitsubject to this subpart may use onerecordkeeping system if the systemidentifies each record by hazardouswaste management unit.

When leak detected Tagging Requirements

C a weather-proof and readily visibleidentification, marked with theequipment ID number, attached to theleaking equipment

C ID may be removed after it has beenrepaired, except for valves

C for valves, ID may be removed after 2months of monitoring with no leaksdetected

Log Requirements

C instrument and operator ID numbersand equipment ID number

C date leak detected

(Continued on next page)

Tagging Requirements




Log Requirements






C ID may be removed after it has beenrepaired, except for valves andconnectors

C for valves and connectors, ID may beremoved after it has been monitored asspecified and no leak has beendetected during the follow-upmonitoring

Log Requirements

C instrument and equipment ID number,and operator name, initials, and IDnumber




C a weather-proof and readily visibleidentification, marked with theequipment ID number, date evidenceof potential leak found (heavy liquidservice only), and date leak detected,attached to the leaking equipment



Log Requirements


C date evidence of potential leak found(only for equipment in heavy liquidservice, pressure relief devices inlight liquid service, and flanges andother connectors)





REGULATION








When leak detected (concluded)

C dates of each attempt to repair leak

C repair methods applied in each attemptto repair

CC "above 10,000" if maximum

instrument reading after each repairattempt is > 10,000 ppm

C "repair delayed" and reason for delayif leak is not repaired within 15calendar days after detection

C signature of owner/operator whosedecision it was that repair could not beeffected without a process shutdown

C expected date of successful repair ifleak is not repaired within the 15 days

C dates of process unit shutdown thatoccurred while the equipment isunrepaired

C date of successful repair of the leak

Retain for 2 years in readily accessiblelocation.


C repair methods applied in each attemptto repair

C "above 10,000" if maximuminstrument reading after each repairattempt is > 10,000 ppm


C signature of owner/operator whosedecision it was that repair could not beeffected without a process shutdown




Retain for 2 years in readily accessiblelocation.

C dates of first attempt to repair leak

C

C maximum instrument reading aftersuccessful repair or determined to benonreparable


C documentation of sufficient supply ofspare parts on-site before depletionand reason for depletion if repairdelayed because stocked parts weredepleted

C ID of connectors open or otherwisehad the seal broken since lastmonitoring period, and dates andresults of follow-up monitoring

C dates and results of monitoring



Retain for 2 years in a manner that can bereadily accessed at the plant site.


C repair methods applied in eachattempt to repair

C "above 10,000" if maximuminstrument reading after each repairattempt is > 10,000 ppm


C signature of owner/operator whosedecision it was that repair could notbe effected without a unit shutdown


C documentation supporting delay ofrepair of a valve


Log to be kept in the facility operatingrecord for 3 years.



REGULATION








Closed ventsystems and controldevices

C detailed schematics, designspecifications, and piping andinstrumentation diagrams

C dates and descriptions of any changesin design specifications

C description of parameter(s) to bemonitored to ensure proper operationand maintenance

C explanation of selection ofparameter(s)

C periods when not operated accordingto design

C dates of startups and shutdowns ofcontrol devices and closed-ventsystems

When no leak detected: - record that instrument of visual

inspection was conducted - date of inspection - statement that no leaks were

detected

For unsafe and difficult to inspect partsof closed-vent system: - identification - explanation - plan for inspecting equipment

Keep these records in a readily accessiblelocation.





C periods when not operated accordingto design, including when flare pilotlight is out

C dates of startups and shutdowns ofcontrol devices and closed-ventsystems

Keep these records in a readily accessiblelocation.

Design Specifications and PerformanceDemonstration:




C flare design and compliancedemonstration results


The design specification and performancedemonstration records are to be kept forthe life of the equipment.

Description and date of eachmodification made to the closed-ventsystem or control device design.

Identification of operating parameter,description of monitoring device, anddiagram of monitoring sensor location(s)for the following types of monitoringdevices: vent stream flow, temperature,heat sensing, organic concentration,regeneration cycles for carbon beds, andgood combustion practices.

Monitoring, operating, and inspectioninformation required by paragraphs§§63.1033 (f) through (j).

Date, time, and duration of each periodthat occurs while the control device isoperating when any monitoredparameter exceeds the value establishedin the control device design analysis.

Explanation for each period for whichmonitored parameter exceeded theestablished value.

For carbon adsorption systems, datewhen existing carbon in the controldevice is replaced with fresh carbon or,if monitoring the organic concentrationto determine breakthrough, date andtime of carbon breakthrough and datewhen existing carbon is replaced withfresh carbon.



REGULATION








Closed ventsystems and controldevices (concluded)

Records of Operation:C records of operation of closed-vent

systems and control devicesC dates and duration when closed-vent

systems, and control devices notoperated according to design

C dates and duration when monitoringsystems/devices are nonoperative

C dates of startups and shutdownsC records of closed-vent inspections

The records of operation are to be keptfor 2 years.

Part 264:C For "other" control devices, the

Regional Administrator will specifythe appropriate recordkeepingrequirements.

Part 265:C For "other" control devices,

monitoring and inspectioninformation indicating properoperation and maintenance.

Keep these records up-to-date in thefacility operating record. Operatinginformation is to be kept for 3 years.

Visual inspections Not applicable. Not applicable. Documentation that inspection wasconducted

Dates of inspection

These records are to be kept for 2 years.

Not applicable.

All equipment ... List of ID numbers of subject equipment

List of ID numbers of equipmentdesignated for no detectable emissionsand signed by owner/operator

List of ID numbers for pressure reliefdevices in gas/vapor service

For each compliance test for componentsdesignated for no detectable emissions:C dates conductedC background level measuredC maximum instrument reading

List of ID numbers of equipment invacuum service

List of ID numbers of subject equipment(except welded fittings)



For each compliance test for componentsdesignated for no detectable emissions:C dates conductedC background level measuredC maximum instrument reading


List of ID numbers of subject equipment(except certain connectors)

Location of equipment on site plan, logentries, etc.

Connectors do not need to be individuallyidentified if all connectors in a designatedarea or length of pipe are identified as agroup and the number of connectors isidentified

Schedule by process unit for monitoringconnectors and valves

Identification of equipment in HAPservice by tagging, identified on a plantsite plan, in log entries, or other methods

List of ID numbers of subject equipment(except welded fittings)



For each compliance test forcomponents designated for no detectableemissions:C dates conductedC background level measuredC maximum instrument reading




REGULATION








All equipment ...(continued)

Maintain records in a readily accessiblelocation.

Maintain records for 2 years in a readilyaccessible location.

List of ID numbers for equipmentequipped with a closed-vent system andcontrol device.

For each compliance test for componentsdesignated for no detectable emissions:C dates conducted and resultsC background level measuredC maximum instrument reading.

List of ID numbers of compressors andpressure relief devices complying with aninstrument reading of less than 500 ppmabove background standard.

ID of surge control vessels or bottomsreceivers equipped with a closed-ventsystem or control device.

ID of pressure relief devices equippedwith rupture disks.

ID of instrumentation systems (individualcomponents need not be identified).

ID of screwed connectors complying with§63.174(c)(2). Identification can be bygrouping or area.

ID of connectors opened since lastmonitoring period.

List of valves and connectors removedfrom or added to the process if net creditsfor the removal or the valves orconnectors are expected to be used.

Documentation of the integrity of theweld for removed connectors.

For open-ended valves or lines, list of IDnumbers of subject valves and lines.

ID numbers for equipment that containsor contacts hazardous waste with anorganic concentration of at least 10% byweight for a period of fewer than 300hours per year.

Equipment identification number andhazardous waste management unitidentification.

Information to be kept for pumpsequipped with a dual mechanical seal:C design criteria for indicating failureC explanation for selected criteriaC any changes to the criteria and the

reason for change.

Approximate facility location on facilityplot.

Type of equipment.

Percent-by-weight of total organics inhazardous waste at the equipment.

Hazardous waste state at the equipment.

Method of compliance.

Retain in a log that is kept in the facilityoperating record.



REGULATION








All equipment ...(concluded)

Design criteria, explanation, and changesto criteria of any pumps equipped with adual mechanical seal.

Copies of periodic reports (if database notcapable of generating such).

Maintain records in a manner that isreadily accessible at the plant site.

Unsafe to MonitorEquipment

List of ID numbers

Planned schedule for monitoring

List of ID numbers


List of ID numbers


List of ID numbers


Difficult to MonitorEquipment

List of ID numbers

Explanation for designation


List of ID numbers



List of ID numbers



List of ID numbers



Unsafe to RepairConnectors

Not applicable. Not applicable. List of ID numbers


Not applicable.

Valves complyingwith alternativestandard for skip-periods

Schedule of monitoring

Percent valves leaking during eachmonitoring period

Schedule of monitoring


Not applicable. Schedule of monitoring


Barrier fluid andseal systems

Design criteria for indicating failure

Explanation for selected criteria

Any changes to selected criteria andreasons for change












REGULATION








ExemptionsDeterminations

Analysis demonstrating facility designcapacity

Statement listing feed or raw materialsand products from facility and analysisdemonstrating whether these chemicalsare heavy liquids or beverage alcohols

Analysis demonstrating that equipment isnot in VOC service

Analysis demonstrating facility designcapacity

Analysis demonstrating that equipment isnot in VHAP service

Information and data used to demonstratethat equipment is not in organic HAPservice, is in HAP service fewer than 300hours per year, or is in heavy liquidservice

Analysis determining the designcapacity of the unit

Statement listing the hazardous wasteinfluent to and effluent from eachsubject unit and an analysis determiningwhether these wastes are heavy liquids

Up-to-date analysis and supportinginformation to determine whether orequipment is subject to this subpart. Anew determination is required when theowner/operator takes any action thatcould result in an increase in the totalorganic content of the waste contained inor contacted by closed vent systems andcontrol devices previously determinednot subject to this rule

Not "In service" Information and data used to demonstratethat a piece of equipment is not in VOCservice

Information and data used to demonstratethat a piece of equipment is not in VHAPservice

Information, data, and analysis used todemonstrate that a piece of equipment orprocess unit is in heavy liquid service

Not specified.

Batch Processes Not applicable. Not applicable. Monitoring of Batch Processes

List of equipment added since lastmonitoring period

Record inspection performed if no leaksfound

Documentation of any switch from batchprocess monitoring to pressure testing orvice versa

Identify equipment on a plant site plan, inlog entries, or by other appropriatemethods

Not applicable.



REGULATION








Batch Processes(concluded)

Pressure Test of Batch Processes

ID of each product, or product code,produced during calendar year

Records demonstrating the proportion ofthe time during the calendar year theequipment is in use in a batch processthat is subject to tho provisions of thissubpart

Date and results of monitoring forequipment added to the batch processunit since the last monitoring period

Physical tagging not required; may beidentified on plant site plan, in log entries,other appropriate methods

Dates of each pressure test, the testpressure, and the pressure drop observedduring the pressure test

Records of any visible, audible, orolfactory evidence of fluid loss

Failure of two consecutive pressure tests. Record the following and keep for twoyears:

C date of each pressure test

C date of each leak repair attempt

C repair methods applied

C reason for delay of repair

C expected and actual delivery date ofreplacement equipment

C date of successful repair



REGULATION








No detectableemissions

Background level

Maximum instrument reading

Background level


Not applicable. Background level




REGULATION








QIP Not applicable. Not applicable. If leak not repaired within 15 calendardays of discovery, reason for leak repairdelay and expected date of successfulrepair

Records of all analyses required under§§63.175(e) and §63.176(d), including:

C list identifying areas associated withpoorer than average performance andthe associated service characteristicsof the stream, the operating conditions,and maintenance practices

C reasons for rejecting specific candidatesuperior emission performing valve orpump technology from performancetrials

C list of candidate superior emissionperforming valve or pumptechnologies and documentation ofperformance trial program items

C beginning date and duration ofperformance trials of each candidatesuperior emission performingtechnology

Records documenting the qualityassurance program

Records indicating all valves or pumpsreplaced or modified are in compliancewith the quality assurance requirements

Records documenting compliance withthe 20 percent or greater annualreplacement rate for pumps

Information and data showing companyhas less than 100 employees

Not applicable.



REGULATION








QIP - Reasonablefurther progress

Not applicable. Not applicable. For each valve in each process unitsubject to the QIP:

C maximum instrument readingobserved in each monitoringobservation before repair, responsefactor for the stream (if appropriate),instrument model number, and date ofthe observation

C whether the valve is in gas or lightliquid service

C if a leak is detected, the repair methodsused and the instrument readings afterrepair

If data analyzed as part of a largeranalysis program; describe anymaintenance or QIP intended to improveemission performance

Percent leaking valves and rollingaverage percent reduction observed eachquarter

Beginning and end dates while meetingthe requirements of the QIP

Not applicable.



REGULATION








QIP - Technologyreview andimprovement

Not applicable. Not applicable. For valves

Type and manufacturer, design, materialsof construction, packing material, andyear installed

Service characteristics of the stream (e.g.,operating pressure, temperature, linediameter, corrosivity)

Whether in gas/vapor or light liquidservice

If a leak is detected, the maximuminstrument reading observed before arepair, response factor for stream ifadjusted, instrument model number, anddate of observation

Repair methods used and the instrumentreadings after the repair

Description of any maintenance orquality assurance program used in theprocess unit that are intended to improveperformance

Percent leaking valves observed eachquarter

Documentation of all inspections andrecommendations for design orspecification changes to reduce leakfrequency

Beginning and end dates while meetingrequirements of the QIP

Not applicable.



REGULATION








QIP - Technologyreview andimprovement(concluded)

For pumps

Type and manufacturer, seal type andmanufacturer, pump design, materials ofconstruction, barrier fluid or packingmaterial, and year installed

Service characteristics of the stream, discharge pressure, temperature, flowrate, corrosivity, and annual operatinghours

Maximum instrument readings observedbefore repair, response factor for thestream, instrument number, and date ofobservation

If a leak is detected, repair methods usedand the instrument readings after therepair

Rolling average percent leaking pumps

Documentation of all inspections andrecommendations for design orspecification changes to reduce leakfrequency

Beginning and end dates while meetingrequirements of the QIP

Enclosed VentProcess

Not applicable. Not applicable. ID of process units and organic HAPshandled

Schematic of process unit, enclosure, andclosed-vent system

Description of system used to createnegative pressure

Not applicable.


ReportingRequirements

REGULATION








Initial Report Process unit identification

Number of valves in gas/vapor and lightliquid service, excluding thosedesignated for no detectable emissions

Number of pumps in light liquid service,excluding those designated for nodetectable emissions or equipped with acompliant closed-vent system or controldevice

Number of compressors, excluding thosedesignated for no detectable emissions orequipped with a compliant closed-ventsystem and control device

For each source:

C equipment identification number

C process unit identification

C type of equipment

C percent weight VHAP

C process fluid state

C method of compliance

Reporting schedule for submittal ofsubsequent semiannual reports

An owner or operator is also required tosubmit a statement notifying theAdministrator that the requirements ofthis subpart are being implemented. Forexisting sources and new sources with aninitial startup date preceding the effectivedate, this notification is to be submittedwithin 90 days of the effective date. Fornew source with an initial startup dateafter the compliance date, this notificationis to be submitted with the application forapproval of construction.

Initial Notification

C name and address of owner/operator

C address of facility (physical location)

C identification of subject processes

C compliance statement

C statement of whether a source canachieve compliance by the applicablecompliance date

Notification of Compliance Status (foreach subject process unit)

A. For each subject unit:

C process unit identification

C number of each equipment type(except those in vacuum service)

C method of compliance

C planned schedule for each phase (forlight liquid pumps and gas/vaporvalves)

B. Batch processes:

C batch products or product codes

C planned schedule for testing

C. Enclosed-vented process units: C process unit identification

C description of negative pressuresystem and control device

Not specified.



REGULATION








SubsequentSemiannual/Periodic Reports

Process unit identification

The following information by month inthe reporting period:

C number of valves, pumps, andcompressors for which leaks weredetected

C number of valves, pumps, andcompressors for which leaks were notrepaired as required

C the facts that explain each delay ofrepair, and where appropriate, why aprocess unit shutdown was technicallyinfeasible

Dates of process unit shutdowns thatoccurred within the semiannual reportingperiod

Revisions to items reported in the initialsemiannual report if changes haveoccurred since the initial semiannualreport or subsequent revisions to theinitial semiannual report

Report of all performance tests inaccordance with §60.8

Process unit identification


C number of valves, pumps, andcompressors for which leaks weredetected

C number of valves, pumps, andcompressors for which leaks were notrepaired as required

C the facts that explain each delay ofrepair, and where appropriate, why aprocess unit shutdown was technicallyinfeasible



Submit the following information semi-annually starting 6 months after theNotification of Compliance:

C the number of valves, pumps,compressors, agitators, connectors, andscrewed connectors for which leakswere detected

C the percent leakers for valves, pumps,connectors, and screwed connectors

C the total number of valves, pumps,connectors, and screwed connectorsmonitored

C the number of valves, pumps,compressors, agitators, connectors, andscrewed connectors for which leakswere not repaired

C identification of the number of valvesand connectors determined to benonreparable

C explanation of why repairs delayed andwhy process unit shutdown wasinfeasible

C notification of change in connectormonitoring alternatives (if applicable)

Revisions to items reported in thenotification of compliance status ifmethod of compliance has changed sincethe last report

Information listed under Notification ofCompliance Status for process units withlater compliance dates

For "no detectable emissions"components: all monitoring to showcompliance

NOTE: The following is applicable to40 CFR part 264, subpart BB only.

The EPA identification number, name,and address of the facility.


C equipment identification number ofeach valve, pump, and compressor forwhich leaks were not repaired asrequired

C dates of hazardous waste managementunit shutdowns that occurred withinthe Semiannual reporting period

C dates when the required control deviceexceeded or operated outside designspecifications and was not correctedwithin 24 hours, the duration andcause of each exceedance, and anycorrective measures taken.

If during the semiannual reportingperiod, pumps, valves, and connectorsare repaired as required and the controldevice does not exceed or operateoutside of design specifications for morethan 24 hours, a report to the RegionalAdministrator is not required.



REGULATION








Batch Processes -Pressure Testing

Not applicable. Not applicable. Batch product process equipment trainidentification.

Number of pressure tests conducted.

Number of failed pressure tests.

Explanation of delay of repairs.

All monitoring results.

Not applicable.

Other Notification 90 days prior to election tocomply with either alternative standardfor valves in gas/vapor service.

Report of all performance test inaccordance with §60.8, except 30 daynotification required only for initialperformance test.

Notification 90 days prior to complyingwith either alternative standard for valvesin gas/vapor service.

Report of all performance test andmonitoring to determine compliance withno detectable emissions and with§63.243-1 and -2 conducted within thesemiannual reporting period.


APPENDIX B

EQUIPMENT LEAK REGULATIONS: SUMMARY OF DIFFERENCES

pageGENERAL ASPECTS OF RULEApplicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1Exemptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2Process Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3Repaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3Equipment Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

SPECIFIC COMPONENT SUMMARIESValves, Gas/Vapor or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4Valves, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5Alternative Standards for Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6Pumps, Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7Pumps, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-9Pressure Relief Devices, Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10Pressure Relief Devices, Light Liquid or Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . B-10Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11Sampling Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12Flanges and Other Connectors (All Services) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13Connectors, Gas/Vapor or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13Connectors, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13Agitators, Gas/Vapor Service or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13Agitators, Heavy Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-13Instrumentation Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14Product Accumulator Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14Surge Control Vessels and Bottoms Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-14Closed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15

DELAY OF REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17

QUALITY IMPROVEMENT PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-18

EQUIVALENCE OF (OR ALTERNATIVE) MEANS OF EMISSIONS LIMITATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-19

ALTERNATIVE MEANS OF EMISSION LIMITATION: BATCH PROCESSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-19

ALTERNATIVE MEANS OF EMISSION LIMITATION: ENCLOSED-VENTED PROCESS UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-19

TEST METHODS AND PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-20

RECORDKEEPING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-23

REPORTING REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-27

SUMMARY OF REGULATION DIFFERENCES page B-1

General Aspects ofRule

REGULATION

40 CFR Part 60,Subpart VV

40 CFR Part 61,Subpart J

40 CFR Part 61,Subpart V

40 CFR Part 63,Subpart H

40 CFR Part 63,Subpart I

40 CFR Part 264,Subpart BB


APPLICABILITY All equipment within aprocess unit in the syntheticorganic manufacturingindustry that commencesconstruction,reconstruction, ormodification after 1/5/81. A list of SOCMI chemicalsproduced as intermediatesor final products by processunits is provided todetermine applicability.

Equipment that is operatedin benzene service.

Equipment operated involatile HAP (VHAP)service after the date forwhich part 61 regulationshave been promulgated.

Equipment in organic HAPservice operated at least 300hours per year at facilities forwhich part 63 regulationshave been adopted and thatcross-reference this subpart.

A list of organic HAP isprovided to determineapplicability.

Equipment in organic HAPservice (see Definitions)operated at least 300 hoursper year in the followingtypes of processes: Styrene-butadiene rubber production;polybutadiene rubberproduction; processesproducing five specificagricultural chemicals;processes producing sixspecific types ofpolymers/resins or otherchemicals; pharmaceuticalprocesses using carbontetrachloride or methylenechloride; and five specifiedpolymers/resins.a

Specific HAPs aredesignated for determiningapplicability.

Equipment at facilities thattreat, store, or dispose ofhazardous wastes thatcontains or contactshazardous waste withorganic concentrations of atleast 10 percent by weightthat are managed in unitssubject to the permittingrequirements of part 270 orhazardous waste recyclingunits located at suchfacilities otherwise subject tothe permitting requirementsof part 270.

EXEMPTIONS Any affected facility withdesign capacity to produceless than 1,000 Mg peryear.

Any affected facility thathas no equipment in VOCservice.

Any affected facility thatproduces heavy liquidchemicals only from heavyliquid feed or rawmaterials.

Any affected facility thatproduces beverage alcohol.

Any equipment in benzeneservice located at plantdesigned to produce or useless than 1,000 Mg ofbenzene per year.

Any process unit that hasno equipment in benzeneservice.

Coke by-product plants.

Exempt from part 60 ifsubject to part 61.

None specified. Research and developmentfacilities.

Exempt from part 60 andfrom part 61 if subject to part63.

Research and developmentfacilities.

Facilities that do not have thedesignated HAP(s) need onlydocument the basis for thisdetermination.

Exempt until no later thanApril 22, 1997, if plant siteemits less than 10 tpy of anyindividual HAP and less than25 tpy of any combination ofHAP.

None specified.



REGULATION








DEFINITIONS

"In gas/vapor service"

The piece of equipmentcontains process fluid thatis in gaseous state atoperating conditions.

A piece of equipment contains process fluid that is in thegaseous state at operating conditions.

A piece of equipment in organic hazardous air pollutant (HAP)service contains a gas or vapor at operating conditions.

The piece of equipmentcontains or contacts ahazardous waste stream thatis in the gaseous state atoperating conditions.

"In heavy liquidservice"

Not applicable.

"In light liquidservice"

Not applicable.

"In liquid service" Not applicable. A piece of equipment is not in gas/vapor service. A piece of equipment in organic HAP service is not ingas/vapor service.

Not applicable.

"In VOC service" The piece of equipmentcontains or contacts aprocess fluid that is at least10 percent VOC by weight.

The piece of equipment contains or contacts a process fluidthat is at least 10 percent VOC by weight and the piece ofequipment is not in heavy liquid service (as defined under 40CFR Part 60, subpart VV).

The piece of equipment contains or contacts a process fluidthat is at least 10 percent VOC by weight and the piece ofequipment is not in heavy liquid service (as defined under 40CFR Part 60, subpart VV).

Not applicable.

"In VHAP service" Not applicable. A piece of equipment either contains or contacts a fluid(liquid or gas) that is at least 10 percent by weight a volatilehazardous air pollutant (VHAP).


"In organichazardous air

pollutant or inorganic (HAP)

service"

Not applicable. Not applicable. A piece of equipment eithercontains or contacts a fluid(liquid or gas) that is at least5 percent by weight totalorganic HAP.

A piece of equipment eithercontains or contacts a fluid(liquid or gas) that is at least5 percent by weight of thedesignated organic HAPlisted in §63.190(b) of thissubpart.

Not applicable.

"In benzene service" Not applicable. A piece of equipmentcontains or contacts a fluid(liquid or gas) that is atleast 10% benzene byweight.

Not applicable. Not applicable. Not applicable.

EQUIPMENT ADDS: product accumulator vessels ADDS: agitators, surge control vessels, bottoms receivers, andinstrumentation systems.



REGULATION








PROCESS UNIT Components assembled toproduce, as intermediate orfinal products, one or moreof the chemicals specifiedin §60.489. A process unitcan operate independentlyif supplied with sufficientfeed or raw materials andsufficient storage facilitiesfor the product.

Equipment assembled to produce a VHAP or its derivativesas intermediate or final products, or equipment assembled touse a VHAP in the production of a product. A process unitcan operate independently if supplied with sufficient feed orraw materials and sufficient product storage facilities.

A chemical manufacturing process unit as defined in subpart Fof this part, a process unit subject to the provisions of subpart Iof this part, or a process unit subject to another subpart in 40CFR Part 63 that references this subpart.b

A contiguous area of land onor in which hazardous wasteis placed, or the largest areain which there is significantlikelihood of mixinghazardous waste constituentsin the same area.c

REPAIRED Equipment is adjusted, orotherwise altered, in orderto eliminate a leak asindicated by one of thefollowing: an instrumentreading of 10,000 ppm orgreater, indications ofliquids dripping, orindication by sensor that aseal or barrier fluid hasfailed.

Equipment is adjusted, or otherwise altered, to eliminate aleak.

Equipment is adjusted, or otherwise altered, to eliminate a leakas defined in the applicable sections of this subpart.

Equipment is adjusted, orotherwise altered, toeliminate a leak.

EQUIPMENTIDENTIFICATION

None specified. Mark subject equipment in such a manner as to readilydistinguish from other pieces of equipment.

Same as 40 CFR Part 61, but adds: Identification does notrequire physical tagging.

Mark subject equipment insuch a manner as to readilydistinguish from other piecesof equipment.

a Processes producing styrene-butadiene rubber (butadiene and styrene emissions only). Processes producing polybutadiene rubber (butadiene emissions only). Processes producing the following agricultural chemicals (butadiene,carbon tetrachloride, methylene chloride, and ethylene dichloride emissions only): Captafol (R); Captan (R); Chlorothalonil; Dacthal; and Tordon (R) acid. Processes producing the following polymers/resins and other chemicals(carbon tetrachloride, methylene chloride, tetrachloroethylene, chloroform, and ethylene dichloride emissions only): Hypalon (R); Oxybisphenoxarsine/1,3-diisocyanate [OBPA (R)]; polycarbonates; polysulfide rubber; chlorinatedparaffins; and symmetrical tetrachloropyridine. Pharmaceutical production processes using carbon tetrachloride or methylene chloride (carbon tetrachloride and methylene chloride emissions only). Processes producing thefollowing polymers/resins and other chemicals (butadiene emissions only): tetrahydrophthalic anhydride (THPA); methlymethacrylate-butadiene styrene resins (MBS); butadiene-furfural cotrimer; methlymethacrylate-acrylonitrile-butadiene-styrene (MABS) resins; and ethylidene norbornene.

b "Chemical manufacturing process unit" means the equipment assembled and connected by pipes or ducts to process raw materials and to manufacture an intended product. For the purposes of this subpart, chemical manufacturingprocess unit includes air oxidation reactors and their associated product separators and recovery devices; reactors and their associated product separators and recovery devices; distillation units and their associated distillate receiversand recovery devices; associated unit operations (as defined in this section); and any feed, intermediate, and product storage vessels, product transfer racks, and connected ducts and piping. A chemical manufacturing processunit includes pumps, compressors, agitators, pressure relief devices, sampling connection systems, open-ended valves or lines, valves, connectors, instrumentation systems, and control devices or systems. A chemical processmanufacturing unit is identified by its primary product.

c Examples of hazardous waste management units include a surface impoundment, a waste pile, a land treatment area, a landfill cell, an incinerator, a tank and its associated piping and underlying containment system and a containerstorage area. A container alone does not constitute a unit; the unit includes containers and the land or pad upon which they are placed.



REGULATION








VALVES, GAS/VAPOR OR LIGHT LIQUID SERVICE

Standards Designates valves "in liquid service" not ineither "light liquid" or "heavy liquid" service.

Standards:Basic

MonitoringInterval

Monthly that can go to quarterly. Monthly that can go to quarterly. Quarterly in Phases I and II.

In Phase III, varies depending on percentleaking.

Monthly that can go to quarterly.

Standards:Plants with

less than 250valves in

organic HAPservice

Not applicable. Not applicable. In Phase III, can monitor quarterly (ratherthan monthly) or comply with paragraphs(d)(3) or (d)(4).

Not applicable.

NoDetectableEmissions

Not applicable.

Unsafe-to-Monitor:Interval

ADDS: but not more frequently than theperiodic monitoring schedule otherwiseapplicable.

Difficult-to-Monitor:

Definition

ADDS: or it is not accessible at anytime in asafe manner

Difficult-to-Monitor:Limit onNumber

No more than 3.0 percent of valves in affectedfacility can be designated as difficult-to-monitor.

None specified. No more than 3.0 percent of valves inaffected facility can be designated asdifficult-to-monitor.

None specified.



REGULATION








VALVES, GAS/VAPOR OR LIGHT LIQUID SERVICE (concluded)

LeakDefinition

10,000 ppm 10,000 ppm Phase I: 10,000 ppmPhase II: 500 ppmPhase III: 500 ppm

10,000 ppm

Repairs ADDS: When repaired, monitor at least oncewithin first 3 months after repair.

Exemptions Equipment operated less than 300 hours peryear.

VALVES, HEAVY LIQUID SERVICE

Standards Not applicable.

LeakDefinition


Repair For valves in heavy liquid service that are notmonitored (Method 21), repair shall meanthat visual, audible, olfactory, or otherindications of a leak have been eliminated;no bubbles are observed at potential leaksites during leak check with soap solution; orsystem will hold a test pressure.



REGULATION








ALTERNATIVE STANDARDS FOR VALVES

Allowable Percentage of Valves Leaking

Standard Applies to "affected facilities" Applies to "process units" Not applicable. Applies to "hazardous waste managementunits"

Notification Not required. Notification required if compliance withallowable percent is discontinued

Not required. Notification required if compliance withallowable percent is discontinued

Skip Period Leak Detection and Repair

Standard Not applicable.

Calculation Calculate percent leaking by dividing sum ofvalves found leaking during currentmonitoring and valves for which repair hasbeen delayed by the total number of subjectvalves.

Not specified. Not specified.



REGULATION








PUMPS, LIGHT LIQUID SERVICE

Standards ADDS: If located at unmanned plant site,visual inspections required at least monthly.

ADDS: If located at unmanned plant site,visual inspections required at least monthly.

ADDS:

Phase III:

If the greater of either 10 percent of pumps ina process unit (or source-wide) or 3 pumps ina process unit (or source-wide) leak, thenimplement technology review andimprovement QIP. (This does not apply toprocess unit if more than 90% of the pumpsin the unit are either dual mechanical seal ordesigned with no externally activated shaftpenetrating the housing.)

DMS: BarrierFluid Purgesinto Process

zero VOC emissions zero VHAP emissions no similar statement no detectable emissions

DMS: BarrierFluid System

in heavy liquid service and not in VOCservice

not in VHAP service and not in VOC service not in light liquid service must not be a hazardous waste with organicconcentrations 10 percent or greater byweight

DMS:Indications of

LiquidsDripping

Indications means a leak is detected. Indications require monitoring withinstrument. A leak is detected if: (1) thepresence of VHAP is detected, or (2) aninstrument reading is 10,000 ppm or greater(total VOC) is measured.

Indications require monitoring withinstrument. A leak is detected if instrumentreading is 1,000 ppm or greater.

Indications means a leak is detected.

DMS: Sensorand Audible

Alarm

Daily observation or equipped with alarmwaived if located at an unmanned plant site.

Check alarm monthly to ensure it isfunctioning properly.



REGULATION








PUMPS, LIGHT LIQUID SERVICE (concluded)

NoDetectableEmissions

Not provided. Instead provides basicexemption for pumps designed with noexternally actuated shaft penetrating thepump housing (a specification under theother standards for pumps designated for nodetectable emissions).

LeakDefinition

10,000 ppm 10,000 ppm Phase I: 10,000 ppm

Phase II: 5,000 ppm

Phase III: 5,000 ppm (polymerizingmonomers) 2,000 ppm (food/medicalservices) 1,000 ppm (all other pumps)

10,000 ppm

Repair For pumps in Phase III subject to the leakdefinition of 1,000 ppm, repair is notrequired unless instrument reading of 2,000ppm or greater is detected.

First Attemptat Repair

None specified. None specified. Best practices include, but are not limited to: - tightening of packing gland nuts - ensuring that the seal flush is

operating at design pressure andtemperature

None specified.

Exemptions ADDS: Use compliant closed-vent systemthat transports leakage back to the process orto a compliant control device.

Equipment operated less than 300 hours peryear.



REGULATION








PUMPS, HEAVY LIQUID SERVICE

Standards Not applicable.

LeakDefinition

10,000 ppm Monitoring: 2,000 ppm 10,000 ppm

Repair For pumps in heavy liquid service that arenot monitored (Method 21), repair shallmean that visual, audible, olfactory, or otherindications of a leak have been eliminated;no bubbles are observed at potential leaksites during leak check with soap solution; orsystem will hold a test pressure.




REGULATION








PRESSURE RELIEF DEVICES, GAS/VAPOR SERVICE

Standards ADDS:

With Rupture Disk

After each release, replace rupture diskwithin 5 calendar days.

Repair Not applicable.


PRESSURE RELIEF DEVICES, LIGHT LIQUID OR HEAVY LIQUID SERVICE

Standards

LeakDefinition


Repair For pressure relief devices in liquid servicethat are not monitored (Method 21), repairshall mean that visual, audible, olfactory, orother indications of a leak have beeneliminated; no bubbles are observed atpotential leak sites during leak check withsoap solution; or system will hold a testpressure.




REGULATION








COMPRESSORS

Standards

Standards:Barrier Fluid

Purges intoProcess

zero VOC emissions zero VHAP emissions no similar statement no detectable emissions

Standards:Barrier Fluid

Systems

in heavy liquid service and not in VOCservice

not in VHAP service and not in VOC service not in light liquid service must not be a hazardous waste with organicconcentrations 10 percent or greater byweight

Standards:Sensor and

AudibleAlarm

Daily observation or equipped with alarmwaived if located at an unmanned plant site.

Check alarm monthly to ensure it isfunctioning properly.

Exemptions Reciprocating compressors that meet certaincriteria.




REGULATION









Standards:Introduction

ADDS:

The system shall collect or capture thesample purge for return to the process. Gases displaced during filling of the samplecontainer are not required to be collected orcaptured.

Standards:Return of

fluid toprocess or

recycle

ADDS: Closed-loop system

with zero VOC emissions to the atmosphere with zero VHAP emissions to the atmosphere

ADDS: Closed-loop system

No mention of emissions to the atmosphere. With no detectable emissions to theatmosphere

Exemptions ADDS: Sampling systems without purges. ADDS: Sampling systems without purges.



Standards ADDS: flow allowed during maintenance orrepair.

Exemptions ADDS: Open-ended valves and lines in anemergency shutdown system that aredesigned to open automatically in the eventof a process upset.




REGULATION








FLANGES AND OTHER CONNECTORS (ALL SERVICES)

Standards Not applicable. The subpart has standardsfor connector in gas/vapor or light liquidservice and for connectors in heavy liquidservice.

CONNECTORS, GAS/VAPOR OR LIGHT LIQUID SERVICE

Standards Not applicable [See Flanges and otherconnectors (all services)].

Not applicable [See Flanges and otherconnectors (all services)].

See Regulatory Summary table fordescription of regulations for thesecomponents.


CONNECTORS, HEAVY LIQUID SERVICE

Standards Not applicable [See Flanges and otherconnectors (all services)].

Not applicable. See Regulatory Summary table fordescription of regulations for thesecomponents.


AGITATORS, GAS/VAPOR SERVICE OR LIGHT LIQUID SERVICE

Standards Not applicable. Not applicable. See Regulatory Summary table fordescription of regulations for thesecomponents.

Not applicable.

AGITATORS, HEAVY LIQUID SERVICE


Not applicable.



REGULATION








INSTRUMENTATION SYSTEMS


Not applicable.


Standards Not applicable. See Regulatory Summary table fordescription of regulations for thesecomponents.

Not applicable (see Surge Control Vesselsand Bottoms Receivers)

Not applicable.

SURGE CONTROL VESSELS AND BOTTOMS RECEIVERS

Standards Not applicable. Not applicable (see Product AccumulatorVessels)

See Regulatory Summary table fordescription of regulations for thesecomponents.

Not applicable.



REGULATION








CLOSED VENT SYSTEMS AND CONTROL DEVICES

Standards:Vapor

RecoveryDevices

Vapor recovery systems: 95 percent orgreater recovery unless total organicemission limits of §265.1032(a)(1) for allaffected processes can be attained at anefficiency of less than 95 percent.

For carbon adsorbers, carbon replacementintervals specified.

Standards:Combustion

Devices

minimum residence time of 0.75 seconds andminimum temperature of 816oC



minimum residence time of 0.50 seconds andminimum temperature of 760oC or to 20ppmv

Standards:Flares Comply with §60.18 Comply with §60.18 Comply with §63.11(b) Basic requirements for visible emissions, heat

content, and exit velocities.

Standards:Closed-Vent

Systems

Initial and annual inspection requirements,which vary based on whether hard piping orductwork is used.

No detectable emissions and no visualindications.

Initial and annual inspection requirements,which vary based on whether hard piping orductwork is used.

No detectable emissions.

Monitoring:ControlDevices

Specific requirements identified for ventstream flow monitors and other monitors forspecific types of control devices.

Monitoring:Closed-Vent

Systems

Install flow monitors or monthly visualinspections where bypass lines could divertflow

Initially, annually, and at other timesspecified by EPA

Install flow monitors or monthly visualinspections where bypass lines could divertflow

Initially, annually, and at other timesspecified by EPA

Inspections:Closed-Vent

Systems

If contains by-pass lines, (1) vent stream flowmeters or (2) car-seal or lock-and-key type ofconfiguration with monthly visual inspectionrequired.

"Unsafe-to-monitor" parts: inspect asfrequently as practicable, but no morefrequently than annually.

"Difficult-to-monitor" parts: inspect at leastonce every 5 years.

None specified. If contains by-pass lines, (1) vent streamflow meters or (2) car-seal or lock-and-keytype of configuration with monthly visualinspection required.

"Unsafe-to-monitor" parts: inspect asfrequently as practicable, but no morefrequently than annually.

"Difficult-to-monitor" parts: inspect at leastonce every 5 years.

None specified.



REGULATION








CLOSED VENT SYSTEMS AND CONTROL DEVICES (concluded)

LeakDefinition

500 ppm. Not applicable. 500 ppm Not applicable.

CVS: detectable emissions >500 abovebackground

Repair ADDS: Delay of repair allowed under certaincircumstances. Repair required no later thanby end of next process unit shutdown.

ADDS: Delay of repair allowed undercertain circumstances. Repair required nolater than by end of next process unitshutdown.


Equipment needed for safety purposes arenot subject to these monitoring requirements.










General:Isolated

EquipmentDoes not remain in VOC service. Does not remain in VHAP service. Does not remain in organic HAP service. Does not continue to contain or contact

hazardous waste with organic concentrationsof at least 10 percent by weight.

Valves Not allowed unless next process unitshutdown occurs sooner than 6 months after1st process unit shutdown.

Not allowed unless next process unitshutdown occurs sooner than 6 months after1st process unit shutdown.

Not allowed beyond the second process unitshutdown unless the third process unitshutdown occurs sooner than 6 months after1st process unit shutdown.

Not allowed unless next unit shutdown occursooner than 6 months after 1st unit shutdown.

Connectors andAgitators

Not applicable. Not applicable. Allowed if:

emissions from purged material resulting fromimmediate repair less than from the delay

purged material is later collected anddestroyed or recovered in compliant controldevice

Delay beyond next process unit shutdownallowed if otherwise sufficient supply ofvalves have been depleted.

Not applicable.

Pumps Additional allowances:

If repair requires replacing existing seal designwith a new system that provides betterperformance or compliant closed-vent systemand control device.


QualityImprovement

Programs

REGULATION








Applicability Not applicable. Not applicable. See Regulatory Summary table for description of QualityImprovement Programs.

Not applicable.


Equivalence of (orAlternative) Means

of EmissionLimitation

REGULATION








Equipment, Design,and Operational

Requirements

No requirement for Administrator tocompare test data.

Not applicable.

Work Practices:Demonstration of

Emission Reductionfor Required Work

Practice

No length of demonstration periodindicated.

Required for minimum of 12 months. Required for minimum of 12 months. Not applicable.

Unique Approach Not applicable.

Manufacturers ofEquipment

Not applicable.

Alternative Meansof EmissionLimitation:

Batch Processes

REGULATION

40 CFR Part 60,subpart VV

40 CFR Part 61,subpart J

40 CFR Part 61,subpart V

40 CFR Part 63,subpart H

40 CFR Part 63,subpart I

40 CFR Part 265,subpart BB

Not applicable. Not applicable. See Regulatory Summary table for description of standards for batch processes. Not applicable.

Alternative Meansof EmissionLimitation:

Enclosed-VentedProcess Units

REGULATION








Not applicable. Not applicable. See Regulatory Summary table fordescription of standards for enclosed- ventedprocess units.

Not applicable.



REGULATION








MonitoringMethod, Technique,

and Instrument

ADDS: Test each piece of equipment unlessdemonstration is made that equipment is notin VOC service.

ADDS: Instrument to meet performancecriteria of Method 21

Traverse probe around all potential leakinterfaces as close as possible as describedin Method 21

ADDS: Instrument to meet performancecriteria of Method 21 except:

response factor criteria is for the averagecomposition of the process fluid, not eachindividual VOC in stream

for process streams that contain inerts thatare not organic HAPs or VOC, averagestream response factor is calculated on aninert-free basis

If no instrument available that meet allMethod 21 criteria, then instrument readingsmay be adjusted as specified

Monitor all equipment while it is "in service"

ADDS: Instrument to meet performancecriteria of Method 21

Traverse probe around all potential leakinterfaces as close as possible as described inMethod 21

Calibration gases: limits to methane

Phase II: mixture of methane in air atconcentration of about, but less than:

10,000 ppm for agitators 5,000 ppm for pumps 500 ppm all other equipment

Phase III: mixture of methane in air atconcentration of about, but less than:

10,000 ppm for agitators 2,000 ppm for pumps in food/ medicalservice 5,000 ppm for pumps in polymerizingmonomer service 1,000 ppm for all other pumps 500 ppm for all other equipment

Phase II and III Exception: under certainconditions may calibrate up to 2,000 ppmhigher than the leak definition



REGULATION








Not "in service"determination

For demonstration:

Use procedures that conform to ASTM E-260, E-168, E-169 to determine percentVOC in process fluid that is contained orcontacts a piece of equipment.

Engineering judgement may be used toestimate the VOC content if piece ofequipment had not been shown previouslyto be in VOC service.


Compounds determined by EPA to havenegligible photochemical reactivity can beexcluded in determining VOC content of aprocess fluid.

For demonstration:

Use procedures that conform to ASTMMethod D-2267.

Engineering judgment may be used todetermine percent VHAP clearly does notexceed 10 percent.


For demonstration:

Use Method 18 of 40 CFR Part 60, appendixA to determine percent organic HAP.

Engineering judgment may be used todetermine percent organic HAP does notexceed 5 percent.

Owner/operator may instead determineorganic HAP content does not exceed 5percent by weight.

For demonstration:

Use ASTM Methods D 2267-88, E 169-87, E168-88, E260-85, or Method 9060 or 8240 ofSW-846.

Engineering judgment may be used toestimate organic concentration.

Regional Administrator will require the useof ASTM Methods D 2267-88, E 169-87, E168-88, E260-85, or Method 9060 or 8240 ofSW-846 in the event of disagreement todetermine VOC content.

Revisions of "Inservice"

determination

None specified. Determination of in VHAP service can berevised only by following specifiedprocedures.

Determination of in organic HAP servicecan be revised by either following specifiedprocedures or documenting a change inprocess or raw materials no longer causesequipment to be in organic HAP service.

If owner or operator determines that a pieceof equipment contains or contacts ahazardous waste with an organicconcentration of at least 10% be weight, thedetermination can only be revised byfollowing the demonstration procedures.

Samples Representative of process fluid that iscontained in or contacts the equipment orthe gas being combusted in flare.

Representative of process fluid that iscontained in or contacts the equipment or thegas being combusted in flare.

Representative of process fluid that iscontained in or contacts the equipment.

Representative of the highest total organiccontent hazardous waste that is contained inor contacts the equipment.

Vapor pressures Standard reference texts orASTM D-2879

Not specified. Not specified. Standard reference texts orASTM D-2879-86

Flare Compliance Presence of flame: thermocouple orequivalent.

Component concentration: Method 18 andASTM D-2504-67


Concentration: Method 18 or ASTMD2509-67.

Presence of flame: thermocouple orequivalent.


Presence of flame: heat sensing monitoringdevice with a continuous recorder thatindicates the continuous ignition of the pilotflame.




REGULATION









Gas or Vacuum

Not applicable. Not applicable. See Regulation Summary table for specificrequirements.

Not applicable.


Liquid


Not applicable.



REGULATION








When leak detected...

id removal after repair except for valves andconnectors and no leak detected during followupmonitoring

for valves and connectors, id may be removed after2 months of no leaks detected and no leak has beendetected during the followup monitoring

for a weather-proof and readily visibleidentification, adds:

date evidence of potential leak found and dateleak detected

DOES NOT HAVE:

dates of process unit shutdown thatoccurred while the equipment isunrepaired

ADDS:

operator name and initials

maximum instrument reading after successfulrepair or determined to be nonrepairable

for connectors: id of connectors disturbed sincelast monitoring period, and dates and results offollow-up monitoring

copies of periodic reports (if database not capableof generating such)

DOES NOT HAVE:

repair methods applied in each attempt to repair

"above 10,000" if maximum instrument readingafter each repair attempt is > 10,000 ppm

signature of owner/operator whose decision it wasthat repair could not be effected without a processshutdown

ADDS:

date evidence of potential leak found

documentation supporting delay of repair of avalve

DOES NOT HAVE:

dates of process unit shutdown that occurredwhile the equipment is unrepaired



REGULATION








Closed ventsystems and controldevices

ADDS:

flare design and compliance demonstration results

records of operation of closed-vent systems andcontrol devices

dates and duration when closed-vent systems, andcontrol devices not operated according to design

dates and duration when monitoringsystems/devices are nonoperative

records of closed-vent inspections

ADDS:

explanation of each period of exceedances

For carbon adsorbers:

date when fresh carbon added

monitoring of carbon breakthrough (certaincarbon adsorbers)

For other, non-specified control devices,monitoring and inspection informationindicating proper operation and maintenance

Visual inspections Not applicable. Not applicable. documentation that inspection was conducted

dates of inspection

Not applicable.



REGULATION








All equipment ... list of id numbers of subject equipment list of id numbers of subject equipment(except welded fittings)

list of id numbers of subject equipment (exceptcertain connectors)

ADDS:

schedule for monitoring connectors

list of id numbers for equipment equipped withclosed-vent system and control device

list of id numbers of compressors and pressurerelief devices complying with less than 500 ppmabove background standard

list of id numbers of pressure relief devices withrupture disks

id of instrumentation systems

id of screwed connectors complying with§63.174(c)(2)

list of valves and connectors removed if net creditsfor their removal are expected to be used

DOES NOT HAVE:

list of id numbers of equipment designated for nodetectable emissions and signed by owner/operator

list of id numbers for pressure relief devices ingas/vapor service

for each compliance test for componentsdesignated for no detectable emissions

date conducted background level measured maximum instrument reading

list of id numbers of equipment in vacuum service

list of id numbers of subject equipment(except welded fittings)

ADDS:

equipment identification number andhazardous waste management unitidentification

approximate facility location

type of equipment

percent-by-weight of total organics inhazardous waste at the equipment

hazardous waste state at the equipment

method of compliance

Unsafe or Difficultto Monitor Valves



REGULATION








Unsafe-to- Monitoror Repair,Inaccessible orGlass-LinedConnectors

Not applicable. Not applicable. list of id numbers

explanation for designation

plan or schedule for monitoring

Not applicable.

Valves complyingwith alternativestandard for skip-periods

Not applicable.

ExemptionDeterminations

analysis demonstrating facility designcapacity

statement listing feed or raw materialsand products from facility and analysisdemonstrating whether these chemicalsare heavy liquids or beverage alcohol

analysis demonstrating that equipmentis not in VOC service

analysis demonstrating facility designcapacity

analysis demonstrating that equipmentis not in VHAP service

identification of equipment in organic HAP serviceless than 300 hours per year

an analysis determining the design capacityof the unit

statement listing the hazardous waste influentto and effluent from each subject unit and ananalysis determining whether these wastes areheavy liquids

an up-to-date analysis and supportinginformation to determine whether orequipment is subject to this subpart

Not "In service" information and data used todemonstrate that a piece of equipmentis not in VOC service

information and data used todemonstrate that a piece of equipment isnot in VHAP service

information, data, and analysis used to demonstratethat a piece of equipment or process unit is in heavyliquid service

Not specified.

Batch Processes Not applicable Not applicable See Regulation Summary table for specificrequirements.

Not applicable

QIP Not applicable. Not applicable. See Regulation Summary table for specificrequirements.

Not applicable.

Enclosed VentProcess


Not applicable.



REGULATION








Initial Report process unit identification

number of valves, pumps, andcompressors, excluding those designatedfor no detectable emissions

For each source:

equipment identification number

process unit identification

type of equipment

percent weight VHAP

process fluid state


Reporting schedule for submittal ofsubsequent semiannual reports

An owner or operator is also required tosubmit a statement notifying theAdministrator that the requirements ofthis subpart are being implemented. Forexisting sources and new sources with aninitial startup date preceding the effectivedate, this notification is to be submittedwithin 90 days of the effective date. Fornew source with an initial startup dateafter the compliance date, this notificationis to be submitted with the application forapproval of construction.

Initial Notification

name and address of owner/operator address of facility (physical location)

identification of subject processes compliance statement

statement of whether a source canachieve compliance by the applicablecompliance date

Notification of Compliance Status (foreach subject process unit)

A. For each subject unit:


number of each equipment type (exceptthose in vacuum service)


planned schedule for each phase

B. Batch processes:

batch products or product codes

planned schedule for testing

C. Enclosed-vented Process Units process unit identification

description of negative pressure systemand control device

Not specified.



REGULATION








SubsequentSemiAnnual/

Period Reports



number of valves, pumps, andcompressors for which leaks weredetected

number of valves, pumps, andcompressors for which leaks were notrepaired as required

the facts that explain each delay ofrepair, and where appropriate, why aprocess unit shutdown was technicallyinfeasible



number of valves, pumps, andcompressors for which leaks weredetected

number of valves, pumps, andcompressors for which leaks were notrepaired as required

the facts that explain each delay ofrepair, and where appropriate, why aprocess unit shutdown was technicallyinfeasible

not required

not required by month

the number of valves, pumps,compressors, agitators, connectors, andscrewed connectors for which leaks weredetected

the number of valves, pumps,compressors, agitators, connectors, andscrewed connectors for which leaks werenot repaired

explanation of why repairs delayed andwhy process unit shutdown wasinfeasible

ADDS:

the percent leakers for valves, pumps,connectors, and screwed connectors

the total number of valves, pumps,connectors, and screwed connectorsmonitored

identification of the number of valvesand connectors determined to benonrepairable

notification of change in connectormonitoring alternatives (if applicable)

For "no detectable emissions"components: all monitoring to showcompliance

initiation of monthly monitoring underphase III or QIP (if applicable)

Not specified for part 265.

For part 264:

The EPA identification number, name,and address of the facility.


equipment identification number ofeach valve, pump, and compressor forwhich leaks were not repaired asrequired

dates of hazardous waste managementunit shutdowns that occurred within thesemiannual reporting period

dates when the required control deviceexceeded or operated outside designspecifications and was not correctedwithin 24 hours, the duration and causeof each exceedance, and any correctivemeasures taken.

If during the semiannual reportingperiod, pumps, valves, and connectorsare repaired as required and the controldevice does not exceed or operateoutside of design specifications for morethan 24 hours, a report to the RegionalAdministrator is not required.



REGULATION








SubsequentSemiAnnual/

Period Reports(concluded)



Report of all performance test inaccordance with §60.8.



Report of all performance test andmonitoring to determine compliance withno detectable emissions and with§63.243-1 and -2.

not required

not required

not required

not required

not required

not required

Batch Processes -Pressure Testing

Not applicable. Not applicable. See Regulation Summary table forspecific requirements.

Not applicable.

Compliance withAlternative

Standards forValves

90 day prior notice required. 90 day prior notice required. Not applicable. Not applicable.

APPENDIX C

EQUIPMENT LEAK REGULATIONS: SUMMARY BY COMPONENT

page40 CFR PART 60, SUBPART VVClosed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3Dual Mechanical Seal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6No Detectable Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10Pressure Relief Devices in Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-11Pumps and Valves in Heavy Liquid Service, Pressure Relief Devices in LightLiquid or Heavy Liquid Service, and Flanges and Other Connectors . . . . . . . . . . . . . . . . . . C-13Pumps in Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-15Sampling Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-18Valves in Gas/Vapor and Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-20

40 CFR PART 61, SUBPARTS J AND VClosed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-23Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-25Dual Mechanical Seal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-28No Detectable Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-31Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-33Pressure Relief Devices in Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-35Pressure Relief Devices in Liquid Services, Flanges and Other Connectors . . . . . . . . . . . . . . C-37Product Accumulator Vessels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-39Pumps in VHAP Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-41Sampling Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-44Valves in VHAP Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-46

40 CFR PART 63, SUBPARTS H AND IAgitators in Gas/Vapor Service or Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-49Alternative Means of Emission Limitations: Enclosed-Vented Process Units . . . . . . . . . . . . C-53Alternative Means of Emission Limitations: Batch Processes . . . . . . . . . . . . . . . . . . . . . . . C-54Closed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-58Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-62Connectors in Gas/Vapor and Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-65Dual Mechanical Seal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-70Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-73Pressure Relief Devices in Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-75

page

Pumps in Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-78Pumps, Valves, Connectors, and Agitators in Heavy Liquid Service;Instrumentation Systems; and Pressure Relief Devices in Liquid Service . . . . . . . . . . . . . . . C-82Quality Improvement Program for Pumps in Light Liquid Service . . . . . . . . . . . . . . . . . . . . C-86Quality Improvement Program for Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-89Sampling Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-93Surge Control Vessels and Bottoms Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-95Valves in Gas/Vapor and Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-97

40 CFR PART 264 AND PART 265, SUBPARTS BBClosed-Vent Systems and Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-101Compressors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-105Dual Mechanical Seal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-108No Detectable Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-111Open-Ended Valves or Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-113Pressure Relief Devices in Gas/Vapor Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-115Pumps and Valves in Heavy Liquid Service, Pressure Relief Devices in LightLiquid or Heavy Liquid Service, and Flanges and Other Connectors . . . . . . . . . . . . . . . . . C-117Pumps in Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-120Sampling Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-123Valves in Gas/Vapor and Light Liquid Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-125

APPLICABLE REGULATIONS


40 CFR Part 61,Subparts J and V

40 CFR Part 63,Subparts H and I

40 CFR Part 264, Subpart BB40 CFR Part 265, Subpart BB

CLOSED-VENT SYSTEMS AND CONTROL DEVICES

CLOSED-VENT SYSTEMS AND CONTROL DEVICES page C-1

ITEM REQUIREMENTS

Basic Standard Control devices and closed-vent systems to be operated at all times that emissions may be vented tothem

Control Devices: • vapor recovery systems: 95 percent or greater recovery • combustion devices: 95 percent or greater reduction or minimum residence time of 0.75 seconds

at a minimum temperature of 816 °C • flares: comply with §60.18 • monitor to ensure operated and maintained in conformance with design

Monitoring: • closed-vent systems: inspect initially, annually, and at other times as requested by the

Administrator

Leak Definition > 500 ppm above background or visual inspections

AlternativeStandards

Equivalent means of emission limitation

Exemptions Vapor collection or closed-vent systems operated under a vacuum

Unsafe or difficult to inspect portions of closed-vent systems require alternate inspection plan

MonitoringMethod

Hard pipe construction: Method 21 for initial inspection, annual visual inspections

Duct work construction: Method 21 for initial and annual inspections

RepairRequirements

First attempt to repair within 5 calendar days of detection

Repair as soon as practicable; no later than 15 days after detection

Delay of Repair Allowed if technically infeasible without process unit shutdown or if owner/operator determines thatemissions from immediate repair would be greater than emissions from delay of repair. Repair is required before end of next process unit shutdown

Allowed for equipment that is isolated from the process and that does not remain in VOC service







ITEM REQUIREMENTS



When no leak detected: • record that instrument or visual inspection was conducted • date of inspection • statement that no leaks were detected

Information to be kept for all closed-vent systems and control devices: • detailed schematics, design specifications, and piping and instrumentation diagrams • dates and descriptions of any changes in design specifications • description of parameter(s) to be monitored to ensure proper operation and maintenance • explanation of selected parameter(s) • periods when not operated according to design • dates of startups and shutdown of closed-vent system and control device • list of ID numbers of subject closed-vent systems and control devices • list of ID numbers for closed-vent systems and control devices in vacuum service

Information to be kept in a log for determining exemptions: • analysis demonstrating design capacity of affected facility • demonstration that the feed or raw materials and products from the affected facility are heavy

liquids or beverage alcohols • analysis demonstrating that equipment is not in VOC service

Information to be kept for unsafe to inspect parts of closed-vent system (40 CFR 60.482-10(j)): • identification • explanation for designation • plan for inspecting equipment

Information to be kept for difficult to inspect parts of closed-vent system (40 CFR 60.482-10(k)): • identification • explanation for designation • plan for inspecting equipment


Initial report: • process unit identification

Subsequent semiannual reports: • process unit identification • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or

subsequent revisions to the initial report • report of all performance tests in accordance with §60.8






COMPRESSORS

COMPRESSORS page C-3

ITEM REQUIREMENTS

Basic Standard Equipped with compliant seal system that includes a barrier fluid system that prevents leakage ofVOC to atmosphere

For each seal system: • operate with the barrier fluid at a pressure that is greater than the stuffing box pressure, or • equip with a barrier fluid system that is connected by a closed vent system to a compliant control

device, or • equip with a system that purges the barrier fluid into a process stream with zero VOC emissions

to the atmosphere

The barrier fluid system shall be in heavy liquid service or shall not be in VOC service

Install sensor to detect failure of seal system, barrier fluid system, or both

Check sensor daily or equip with audible alarm

Establish criteria that indicates failure of seal system, barrier fluid system, or both

Leak Definition Sensor indicates failure of seal system, barrier fluid system, or both, based on established criteria.



Exemptions Equipment in vacuum service

Reciprocating compressors that meet certain criteria

Compressors designated for no detectable emissions, which operate less than 500 ppm abovebackground (see No Detectable Emissions)

Compressors equipped with a compliant closed-vent system and control device (see Closed-ventSystems and Control Devices)

MonitoringMethod

Sensor alarm or visual check

RepairRequirements

First attempt within 5 calendar days of detection

Repair as soon as practicable; no later than 15 calendar days after detection

Delay of Repair Allowed if technically infeasible without process unit shutdown; required before end of next processunit shutdown







COMPRESSORS

ITEM REQUIREMENTS



When leak detected: • a weather-proof and readily visible identification, marked with the equipment ID number,

attached to the leaking equipment • ID may be removed after it has been repaired

Information to be kept in log for 2 years after leak detected: • instrument and operator ID numbers and equipment ID number • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is > 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a

process shutdown • expected date of successful repair if leak is not repaired within the 15 days • dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all compressors: • list of ID numbers of subject compressors • list of ID numbers of compressors designated for no detectable emissions and signed by

owner/operator • for each compliance test for compressors designated for no detectable emissions:

•• date conducted•• background level measured•• maximum instrument reading

• list of ID numbers for compressors in vacuum service

Information to be kept for barrier fluid and seal systems: • design criteria for indicating failure • explanation for selected criteria • any changes to selected criteria and reasons for change

Information to be kept in a log for determining exemptions: • analysis demonstrating design capacity of affected facility • demonstrations that the feed or raw materials and products from the affected facility are heavy


Information to be kept if equipped with a closed-vent system and control device: • periods when closed-vent system and control device are not operated according to design • dates of startup and shutdown of the closed-vent system and control device






COMPRESSORS

ITEM REQUIREMENTS



Initial report: • process unit identification • number of compressors, excluding those designated for no detectable emissions or equipped with

a compliant closed-vent system and control device

Subsequent semiannual reports: • process unit identification • the following information for each month in the reporting period:

•• number of compressors for which leaks were detected•• number of compressors for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit

shutdown was technically infeasible • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or

subsequent revisions to the initial report • report of all performance tests in accordance with §60.8.






DUAL MECHANICAL SEAL SYSTEM

DUAL MECHANICAL SEAL SYSTEM page C-6

ITEM REQUIREMENTS

Basic Standard For each dual mechanical seal system: • operate the barrier fluid at a pressure that is at all times greater than the pump stuffing box

pressure, or • connect the barrier fluid degassing reservoir by a closed-vent system to a control device, or • equip with a system that purges the barrier fluid into a process stream with zero VOC emissions

to the atmosphere

For all dual mechanical seal systems: • the barrier fluid system shall be in heavy liquid service or not in VOC service • equip each barrier fluid system with a sensor that detects failure of seal system, barrier fluid

system, or both•• check each sensor daily or equip with audible alarm

• determine criteria for sensor and for dripping liquids that indicates failure of the seal system, thebarrier fluid system, or both

• perform weekly visual inspections for indications of liquids dripping from the pump seals

Applies as an exemption to: Pumps in Light Liquid Service

Leak Definition Indications of liquids dripping from the pump seal or sensor detection


N/A

Exemptions N/A

MonitoringMethod

Visual, sensor

RepairRequirements



Delay of Repair If repair requires use of a dual mechanical seal system that includes a barrier fluid system and repairis completed as soon as practicable but no later than 6 months after leak detected

Allowed if technically infeasible without process unit shutdown; required before end of next processunit shutdown








ITEM REQUIREMENTS







Information to be kept for all dual mechanical seal systems: • list of ID numbers of equipment with dual mechanical seal systems • list of ID numbers of equipment in vacuum service

Information to be kept for barrier fluid and seal systems: • design criteria for indicating failure • explanation for selected criteria • any changes to selected criteria and reasons for change






•• number of pumps for which leaks were detected•• number of pumps for which leaks were not repaired as required•• the facts that explain each delay of repair, and where appropriate, why a process unit








NO DETECTABLE EMISSIONS

NO DETECTABLE EMISSIONS page C-8

ITEM REQUIREMENTS

Basic Standard Has an instrument reading of less than 500 ppm above background as measured by the methodsspecified in 60.485(c)

Test for compliance initially upon designation, annually, and at other times as requested by theAdministrator

Applies as basic standard for: • pressure relief devices in gas/vapor service

Applies as an alternate standard to: • pumps in light liquid service (must have no externally actuated shaft penetrating the pump

housing) • valves in gas/vapor service or in light liquid service (must have no external actuating mechanism

in contact with the process fluid)

Leak Definition <500 ppm above background


N/A

Exemptions N/A

MonitoringMethod

Method 21

RepairRequirements

N/A

Delay of Repair N/A







ITEM REQUIREMENTS




attached to the leaking equipment • ID may be removed after leak has been repaired

Information to be kept in log for 2 years after leak detected: • instrument and operator ID numbers and equipment ID number • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • “above 10,000" if maximum instrument reading after each repair attempt is $10,000 ppm • “repair delayed” and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a


Information to be kept: • list of ID numbers of equipment designated for no detectable emissions and signed by

owner/operator • for each compliance test for no detectable emissions:


• list of ID numbers for equipment in vacuum service • list of ID numbers for pressure relief devices in gas/vapor service


Semiannual reports: • dates of process unit shutdowns that occurred within the semi-annual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or








OPEN-ENDED VALVES OR LINES page C-10

ITEM REQUIREMENTS

Basic Standard Use cap, blind flange, plug, or second valve to seal open end at all times except when operationsrequire flow through open end

Second valve: close valve on process fluid end before closing second valve

Double block and bleed system: bleed valve or line may remain open during operations that requireventing the line between the block valves, but comply with basic standard at all other times

Leak Definition N/A




MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all open-ended valves or lines: • list of ID number of subject open-ended valves or lines • list of ID numbers of equipment in vacuum service





Subsequent semiannual reports: • process unit ID • revisions to items reported in the initial report if changes have occurred since the initial report or

subsequent revisions to the initial report






PRESSURE RELIEF DEVICES IN GAS/VAPOR SERVICE

PRESSURE RELIEF DEVICES IN GAS/VAPOR SERVICE page C-11

ITEM REQUIREMENTS

Basic Standard No detectable emissions (less than 500 ppm above background), except during pressure releases

After each release return to no detectable emissions within 5 calendar days as indicated by monitoringof the pressure relief device

Leak Definition No detectable emissions (<500 ppm above background)


N/A


Pressure relief devices equipped with a compliant closed-vent system and control device (see Closed-vent Systems and Control Devices)

MonitoringMethod

Method 21

RepairRequirements

Return to condition of “no detectable emissions” as soon as practicable but no later than 5 calendardays after pressure release




Information to be kept for all pressure relief devices: • list of ID numbers of pressure relief devices required to comply • list of ID numbers for no detectable emissions • for each compliance test for pressure relief devices designated for no detectable emissions:

•• dates conducted•• background level measured•• maximum instrument reading

• list of ID numbers for pressure relief devices in vacuum service



Information to be kept if equipped with a closed-vent system and control device: • periods when closed-vent system and control device were not operated according to design • dates of startup and shutdown of the closed-vent system and control device







ITEM REQUIREMENTS



Initial report: • process unit ID for pressure relief devices

Subsequent semiannual reports: • process unit identification • the facts that explain each delay of repair, and where appropriate, why a process unit shutdown

was technically infeasible • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or

subsequent revisions to the initial report • report of all performance tests in accordance with §60.8.






PUMPS AND VALVES IN HEAVY LIQUID SERVICE, PRESSURERELIEF DEVICES IN LIGHT LIQUID OR HEAVY LIQUIDSERVICE, AND FLANGES AND OTHER CONNECTORS

PUMPS AND VALVES IN HEAVY LIQUID SERVICE, PRESSURE RELIEF DEVICES IN LIGHTLIQUID OR HEAVY LIQUID SERVICE, AND FLANGES AND OTHER CONNECTORS page C-13

ITEM REQUIREMENTS

Basic Standard Monitoring of potential leaks within 5 calendar days of detection if evidence of potential leak is foundby visual, auditory, olfactory, or other detection method

Leak Definition 10,000 ppm




MonitoringMethod

Method 21

RepairRequirements




Allowed for equipment that is isolated from the process and that does not remain in VOC service.

For valves: • allowed if emissions of purged material resulting from immediate repair would exceed fugitive

emissions from delay of repair, and purged material is collected and destroyed or recovered incompliant control device when repair occurs

• delay beyond a process unit shutdown allowed if valve assemblies have been depleted and valveassembly supplies had been sufficiently stocked before supplies were depleted

• not allowed beyond next process unit shutdown unless next process unit shutdown occurs soonerthan 6 months after first process unit shutdown.

For pumps: • allowed if repair requires use of dual mechanical seal system that includes barrier fluid and

repair is completed as soon as practicable but not later than 6 months after leak was detected.







ITEM REQUIREMENTS





Information to be kept in log for 2 years after leak detected: • instrument and operator ID numbers and equipment ID number • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is > 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be affected without a

process shutdown • expected date of successful repair if leak is not repaired within 15 days • dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all equipment in these categories: • list of ID numbers of subject equipment in these categories • list of ID numbers for equipment in vacuum service





Subsequent semiannual reports: • process unit identification • by month in the reporting period, the facts that explain each delay of repair, and where

appropriate, why a process unit shutdown was technically infeasible • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or







PUMPS IN LIGHT LIQUID SERVICE

PUMPS IN LIGHT LIQUID SERVICE page C-15

ITEM REQUIREMENTS

Basic Standard Monthly leak detection and repair

Weekly visual observation for leaks





Exemptions Pumps in vacuum service

Dual mechanical seal pumps (see Dual Mechanical Seals)

Any pump designated for no detectable emissions (see No Detectable Emissions)

Any pump equipped with a compliant closed-vent system and control device (see Closed-ventSystems and Control Devices)

MonitoringMethod

Method 21; no more than 1 cm from rotating shaft

RepairRequirements



Delay of Repair Allowed if technically infeasible without process unit shutdown; required before end of next processunit shutdown.


Allowed if repair requires use of a dual mechanical seal system that includes a barrier fluid systemand repair is completed as soon as practicable but not later than 6 months after leak was detected







ITEM REQUIREMENTS







Information to be kept for all pumps: • list of ID numbers of subject pumps • list of ID numbers of pumps designated for no detectable emissions and signed by owner/operator • for each compliance test for pumps designated for no detectable emissions:


• identification of pumps in vacuum service

Information to be kept for barrier fluid and seal systems: • design criteria for indicating failure • explanation of selected criteria • any changes to selected criteria and reasons for change

Information to be kept if pump is equipped with a closed-vent system and control device: • periods when closed-vent system and control device is not operating according to design • dates of startup and shutdown of closed-vent system and control device









ITEM REQUIREMENTS



Initial report: • process unit identification • number of pumps, excluding those designated for no detectable emissions or equipped with a

closed-vent system or control device


•• number of pumps for which leaks were detected•• number of pumps for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit


subsequent revisions to the initial report • report of all performance test in accordance with §60.8







SAMPLING CONNECTION SYSTEMS page C-18

ITEM REQUIREMENTS

Basic Standard Equipped with closed-purged, closed-loop, or closed-vent system that returns the fluid to the processline, recycles the purged fluid to a process, or sends it to a compliant control device

Leak Definition N/A




In-situ sampling systems

Sampling systems without purges

MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all sampling connections: • list of ID numbers of subject sampling connection systems • list of ID numbers of sampling connections systems in vacuum service

Information to be kept if equipped with closed-vent system and control device: • periods when closed-vent system and control device is not operated according to design • dates of startup and shutdown of closed-vent system and control device



















VALVES IN GAS/VAPOR AND LIGHT LIQUID SERVICE

VALVES IN GAS/VAPOR AND LIGHT LIQUID SERVICE page C-20

ITEM REQUIREMENTS

Basic Standard Monitor monthly

If valve does not leak for 2 months, may be monitored quarterly

If valve leaks, monitor monthly until no leak is detected for 2 consecutive months




Allowable percentage of valves leaking: may elect to comply with #2% leaking valves • notify Administrator before implementing • conduct performance tests initially, annually, and as requested by Administrator

•• monitor within one week using Method 21•• leak definition is 10,000 ppm•• leak percentage cannot be greater than 2.0%

Skip period leak detection and repair: • notify Administrator before implementing • comply initially with basic standard • if #2% leaking after 2 consecutive quarterly leak detection periods, may begin to skip 1 of the

quarterly monitoring periods • after 5 consecutive periods with #2.0% leaking, may begin to skip 3 of the quarterly periods • if >2.0% leaking, comply with basic standard, but can again elect to use alternate standard

Exemptions Valves in vacuum service

Valves designated for no detectable emissions (less than 500 ppm above background - see NoDetectable Emissions)

Valves designated unsafe to monitor or difficult to monitor

MonitoringMethod

Method 21

RepairRequirements









ITEM REQUIREMENTS




Allowed if emissions of purged material from immediate repair would exceed fugitive emissions fromdelay of repair, and purged materials are collected and destroyed or recovered in a compliant controldevice when repair occurs

Allowed beyond process unit shutdown if otherwise sufficient supply of valve assembly replacementsare exhausted and supplies had been sufficiently stocked before depletion

Not allowed beyond next process unit shutdown unless next shutdown occurs sooner than 6 monthsafter first process unit shutdown



attached to the leaking equipment • ID may be removed after it has been repaired and monitored for 2 months with no leaks detected

during those 2 months



Information to be kept for all valves: • list of ID numbers of subject valves • list of ID numbers of valves designated for no detectable emissions and signed by owner/operator • for each compliance test for valves designated for no detectable emissions:


• list of ID numbers for valves in vacuum service








ITEM REQUIREMENTS


RecordkeepingRequirements,continued

Information to be kept for unsafe or difficult to monitor valves: • list of ID numbers • explanation for designation • planned schedule for monitoring

Information to be kept for valves complying with alternative standard - skip period leak detection andrepair: • schedule of monitoring • percent of valves found leaking during each monitoring period

Information and data to be kept in a log for determining exemptions: • analysis demonstrating design capacity of affected facility • demonstration that the feed or raw materials and products from the affected facility are heavy



Initial report: • process unit identification • number of valves, excluding those designated for no detectable emissions


•• number of valves for which leaks were detected•• number of valves for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit



If complying with alternative standard, notify Administrator 90 days before implementation








ITEM REQUIREMENTS


Control Devices: • vapor recovery systems: 95 percent or greater recovery • enclosed combustion devices: 95 percent or greater reduction or minimum residence time of 0.50

seconds and minimum temperature of 760 °C • flares: comply with §60.18 • monitor to ensure operated and maintained in conformance with their design

Closed-Vent Systems: • no detectable emissions (less than 500 ppm above background) and no visual indications • monitor initially, annually, and at other times as requested by the Administrator

Leak Definition Closed-vent system: no detectable emissions (<500 ppm above background) and visual inspection


Alternative means of emission limitation


MonitoringMethod

Method 21

RepairRequirements

As soon as practicable, but no later than 15 calendar days after detection



Allowed for equipment that is isolated from the process and that does not remain in VHAP service







ITEM REQUIREMENTS



Information to be kept for all closed-vent systems and control devices: • detailed schematics, design specifications, and piping and instrumentation diagrams • dates and descriptions of any changes in design specifications • description of parameter(s) to be monitored to ensure proper operation and maintenance • explanation of selected parameter(s) • periods when not operated according to design, including periods when a flare pilot light does not

have a flame • dates of startups and shutdown of the closed-vent system and control device • list of ID numbers of subject closed-vent systems and control devices • list of ID numbers of closed-vent systems and control devices designated for no detectable

emissions and signed by owner/operator • list of ID numbers for closed-vent systems and control devices in vacuum service • information and data used to demonstrate equipment is not in VHAP service

Information to be kept for use in determining exemptions: • analysis demonstrating design capacity of the process unit • analysis demonstrating that equipment is not in VHAP service


Initial report: • process unit identification • equipment identification number • type of equipment • percent weight VHAP • process fluid state • method of compliance • reporting schedule for submittal of subsequent semiannual reports • statement notifying Administrator that subpart requirements are being implemented


subsequent revisions to the initial report • report of all performance tests to determine compliance with no detectable emissions • by month in the reporting period, the facts that explain any delay of repairs and, where

appropriate, why a process unit shutdown was technically infeasible






COMPRESSORS


ITEM REQUIREMENTS

Basic Standard Equip with compliant seal system that includes a barrier fluid system that prevents leakage toatmosphere • operate the barrier fluid at a pressure that is at all times greater than the pump stuffing box

pressure, or • connect the barrier fluid degassing reservoir by a closed-vent system to a control device, or • equip with a system that purges the barrier fluid into a process stream with zero VHAP emissions

to the atmosphere

The barrier fluid system is not in VHAP service and, if covered under 40 CFR 60, is not in VOCservice

Install sensor that will detect failure of seal system, barrier fluid system, or both • check each sensor daily or equip with audible alarm, unless at unmanned plant site


Leak Definition Sensor indicates failure of seal system, barrier fluid system, or both, based on established criteria.




Compressors designated for no detectable emissions, which operate less than 500 ppm abovebackground (see No Detectable Emissions)

Compressors equipped with a compliant closed-vent system and control device (see Closed-ventSystems and Control Devices)

MonitoringMethod

Sensor alarm or visual check

RepairRequirements










COMPRESSORS

ITEM REQUIREMENTS







Information to be kept for all compressors: • list of ID numbers of subject compressors • list of ID numbers of compressors designated for no detectable emissions and signed by



• list of ID numbers for compressors in vacuum service • information and data used to demonstrate equipment is not in VHAP service

Information to be kept for barrier fluid and seal systems: • design criteria for indicating failure • explanation for selected criteria • any changes to criteria and reasons for change

Information to be kept for compressors equipped with a closed-vent system and control device: • periods when the closed-vent system and control device is not operated as designed, including

periods when a flare pilot light does not have a flame • dates of start-up and shutdown of the closed-vent system and control device







COMPRESSORS

ITEM REQUIREMENTS



Initial report: • equipment identification number • process unit number • type of equipment • percent weight VHAP • process fluid state • method of compliance • reporting schedule for submittal of subsequent semiannual reports • statement notifying Administrator that subpart requirements are being implemented

Subsequent semiannual reports: • process unit identification • the following information by month in the reporting period:

•• number of compressors for which leaks were detected•• number of compressors for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit


subsequent revisions to the initial report • report of all performance tests and monitoring to determine compliance with no detectable

emissions








ITEM REQUIREMENTS


pressure, or • connect the barrier fluid degassing reservoir by a closed-vent system to a control device, or • equip with a system that purges the barrier fluid into a process stream with zero VHAP emissions

to the atmosphere

The barrier fluid system is not in VHAP service and, if covered under 40 CFR 60, is not in VOCservice

Equip each barrier fluid system with a sensor that will detect failure of seal system, barrier fluidsystem, or both • check each sensor daily or equip with audible alarm • if at unmanned site, visually inspect as often as practicable and at least monthly

Determine criterion for sensor that indicates failure of the seal system, the barrier fluid system, orboth

Determine criteria for presence and frequency of drips that indicate failure

Perform weekly visual inspections for indications of liquids dripping from the pump seal • if indications of liquid, monitor with Method 21 to determine presence of VOC and VHAP in

barrier fluid

Applies as an alternative standard to: Pumps in Light Liquid Service

Leak Definition Sensor

Presence of VHAP above background

10,000 ppm total VOC

Criteria


N/A

Exemptions N/A

MonitoringMethod

Visual, sensor, Method 21

RepairRequirements









ITEM REQUIREMENTS


Delay of Repair If repair requires use of a dual mechanical seal system that includes a barrier fluid system and repairis completed as soon as practicable but no later than 6 months after leak detected




When leak is detected: • a weather-proof and readily visible identification, marked with the equipment ID number,




Information to be kept for all dual mechanical seal systems: • list of ID numbers of dual mechanical seal systems • list of ID numbers designated for no detectable emissions and signed by owner/operator • for each compliance test for dual mechanical seal systems designated for no detectable emissions:


• list of ID numbers for dual mechanical seal systems in vacuum service • information and data used to demonstrate equipment is not in VHAP service









ITEM REQUIREMENTS




Subsequent semiannual reports: • process unit identification • by month in the reporting period, the facts that explain each delay of repair, and where

appropriate, why a process unit shutdown was technically infeasible • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or









ITEM REQUIREMENTS

Basic Standard Has an instrument reading of less than 500 ppm above background as measured by the methodsspecified in 61.245(c)

Test compliance initially upon designation, annually, and as requested by the Administrator

Applies as basic standard for: • closed vent systems • pressure relief devices in gas/vapor service

Applies as an alternate standard to: • pumps (must have no externally actuated shaft penetrating the pump housing) • valves (must have no external actuating mechanism in contact with the process fluid) • compressors



N/A

Exemptions N/A

MonitoringMethod

Method 21

RepairRequirements

N/A

Delay of Repair N/A







ITEM REQUIREMENTS



When leak is detected: • a weather-proof and readily visible identification, marked with the equipment ID number,




Information to be kept for all: • list of ID numbers of equipment designated for no detectable emissions and signed by



• list of IDs of equipment in vacuum service • information and data used to demonstrate equipment is not in VHAP service



Semiannual reports: • process unit ID • dates of process unit shutdowns that occurred within the semi-annual reporting period • revisions to items reported in the initial report if changes have occurred since the initial report or


emissions








ITEM REQUIREMENTS


Second valve: close valve on process fluid end before closing second valve

Double block and bleed system: bleed valve or line may remain open during venting operations thatrequire venting the line between the block valves but comply with basic standard at all other times

Leak Definition N/A




MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all open-ended valves or lines: • list of ID number of subject open-ended valves or lines • information and data used to demonstrate equipment is not in VHAP service








ITEM REQUIREMENTS













ITEM REQUIREMENTS

Basic Standard No detectable emissions (less than 500 ppm above background)

After each release, return to no detectable emissions within 5 calendar days as indicated bymonitoring of the pressure relief device



N/A


Any pressure relief device equipped with a compliant closed-vent system and control device (seeClosed-vent Systems and Control Devices)

MonitoringMethod

Method 21

RepairRequirements

Return to condition of “no detectable emissions” as soon as practicable but no later than 5 calendardays after pressure release









ITEM REQUIREMENTS



Information to be kept for all pressure relief devices: • list of ID numbers of subject pressure relief devices • list of ID numbers of pressure relief devices for no detectable emissions and signed by

owner/operator • for each compliance test for pressure relief devices designated for no detectable emissions:


• list of ID numbers for pressure relief devices in vacuum service • information and data used to demonstrate equipment is not in VHAP service

Information to be kept for pressure relief devices equipped with a closed-vent system and controldevice: • periods when the closed-vent system and control device is not operated as designed, including








emissions






PRESSURE RELIEF DEVICES IN LIQUID SERVICES,FLANGES AND OTHER CONNECTORS

PRESSURE RELIEF DEVICES IN LIQUID SERVICES,FLANGES AND OTHER CONNECTORS page C-37

ITEM REQUIREMENTS

Basic Standard Monitoring of potential leaks within 5 calendar days of detection if evidence of potential leak is foundby visual, auditory, olfactory, or other detection method





MonitoringMethod

Method 21

RepairRequirements




Allowed for equipment that is isolated from the process and that does not remain in VHAP service.












PRESSURE RELIEF DEVICES IN LIQUID SERVICES,FLANGES AND OTHER CONNECTORS

ITEM REQUIREMENTS

PRESSURE RELIEF DEVICES IN LIQUID SERVICES,FLANGES AND OTHER CONNECTORS page C-38

RecordkeepingRequirements(continued)

Information to be kept for all pressure relief devices, flanges and other connectors: • list of ID numbers of subject pressure relief devices, flanges and other connectors • list of ID numbers for equipment in vacuum service • information and data used to demonstrate equipment is not in VHAP service













PRODUCT ACCUMULATOR VESSELS page C-39

ITEM REQUIREMENTS

Basic Standard Equip with a compliant closed-vent system and control device

Leak Definition N/A




MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all product accumulator vessels: • list of ID numbers of subject product accumulator vessels • list of ID numbers for product accumulator vessels in vacuum service • information and data used to demonstrate equipment is not in VHAP service • periods when the closed-vent system and control device are not operated as designed, including

periods when a flare pilot light does not have a flame • dates of startups and shutdowns of the closed-vent system and control device








ITEM REQUIREMENTS

PRODUCT ACCUMULATOR VESSELS page C-40










PUMPS IN VHAP SERVICE

PUMPS IN VHAP SERVICE page C-41

ITEM REQUIREMENTS

Basic Standard Monthly monitoring

Weekly visual observation for dripping liquids





Exemptions Pumps designated for no detectable emissions (see No Detectable Emissions)

Pumps equipped with a compliant closed-vent system and control device (see Closed-vent Systemsand Control Devices)

Pumps equipped with a dual mechanical seal (see Dual Mechanical Seals)

Pumps in vacuum service

Any pump located at unmanned site is exempt from weekly visual inspections and daily sensor checksprovided each pump is visually inspected as often as practicable and at least monthly

MonitoringMethod

Method 21; no more than 1 cm from rotating shaft

RepairRequirements





Allowed if repair requires use of a dual mechanical seal system that includes a barrier fluid systemand repair is completed as soon as practicable but not later than 6 months after leak was detected







ITEM REQUIREMENTS







Information to be kept for all pumps: • list of ID numbers of subject pumps • list of ID numbers of pumps designated for no detectable emissions and signed by owner/operator • for each compliance test for pumps designated for no detectable emissions:


• list of pumps in vacuum service • information and data used to demonstrate equipment is not in VHAP service


Information to be kept for pumps equipped with a closed-vent system and control device: • periods when the closed-vent system and control device is not operated as designed, including









ITEM REQUIREMENTS




Subsequent semiannual reports: • process unit identification • the following information by month in the reporting period:

•• number of pumps for which leaks were detected•• number of pumps for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit



emissions.








ITEM REQUIREMENTS

Basic Standard Equip with closed-purge system or closed-vent system that returns the fluid to the process line withzero VHAP emissions to the atmosphere, recycles the purged fluid with zero VHAP emissions to theatmosphere, or sends it to a compliant control device

Leak Definition N/A





MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all sampling connections: • list of ID numbers of subject sampling connection systems • periods when the closed-vent system and control device are not operated as designed, including

periods when a flare pilot light does not have a flame • dates of startups and shutdowns of the closed-vent system and control device • list of ID numbers of equipment in vacuum service • information and data used to demonstrate equipment is not in VHAP service








ITEM REQUIREMENTS











VALVES IN VHAP SERVICE

VALVES IN VHAP SERVICE page C-46

ITEM REQUIREMENTS


If valve does not leak for 2 months, may be monitored quarterly

If leak detected, monitor monthly until no leak is detected for 2 consecutive months




Allowable percentage of valves leaking: may elect to comply with #2% leaking valves • notify Administrator before implementing • conduct performance tests initially, annually, and as requested by Administrator

•• monitor within one week using Method 21•• leak definition is 10,000 ppm•• leak percentage cannot be greater than 2.0%

• notify Administrator if no longer complying with alternate standard

Skip period leak detection and repair: • notify Administrator before implementing • comply initially with basic standard • if #2% leaking after 2 consecutive quarterly leak detection periods, may begin to skip 1 of the

quarterly monitoring periods • after 5 consecutive periods with #2.0% leaking, may begin to skip 3 of the quarterly periods • if >2.0% leaking, comply with basic standard, but can again elect to use alternate standard


Valves designated for no detectable emissions (less than 500 ppm above background) (see NoDetectable Emissions)

Valves designated unsafe to monitor or difficult to monitor

MonitoringMethod

Method 21

RepairRequirements









ITEM REQUIREMENTS




Allowed if emissions of purged material from immediate repair would exceed fugitive emissions fromdelay of repair, and purged materials are collected and destroyed or recovered in a control devicewhen repair occurs

Allowed beyond process unit shutdown if otherwise sufficient supply of valve assembly replacementsare exhausted

Not allowed beyond next process unit shutdown unless next process unit shutdown occurs sooner than6 months after first process unit shutdown



attached to the leaking equipment • ID may be removed after it has been repaired and monitored for 2 months with no leaks



Information to be kept for all valves: • list of ID numbers of subject valves • list of ID numbers of valves designated for no detectable emissions and signed by owner/operator • for each compliance test for valves designated for no detectable emissions:


• list of ID numbers for valves in vacuum service • information and data used to demonstrate equipment is not in VHAP service









ITEM REQUIREMENTS



Information to be kept for valves complying with alternate standard - skip period leak detection andrepair: • schedule of monitoring • percent of valves found leaking during each monitoring period



Initial report: • valve ID number • process unit identification • type of equipment • percent weight VHAP • process fluid state • method of compliance • reporting schedule for submittal of subsequent semiannual reports • statement notifying Administrator that subpart requirements are being implemented Subsequent semiannual reports: • process unit identification • the following information by month in the reporting period:

•• number of valves for which leaks were detected•• number of valves for which leaks were not repaired within 15 days after detection•• the facts that explain each delay of repair, and where appropriate, why a process unit


subsequent revisions to the initial report • report of all performance tests in accordance with no detectable emissions






AGITATORS IN GAS/VAPOR SERVICE OR LIGHT LIQUID SERVICE

AGITATORS IN GAS/VAPOR SERVICE OR LIGHT LIQUID SERVICE page C-49

ITEM REQUIREMENTS

Basic Standard "Non-dual mechanical seal" agitators: • monthly monitoring and weekly visual check for indications of dripping liquid • if at unmanned site, visually inspect as often as practicable and at least monthly

Leak Definition Monitoring: 10,000 ppm

Visual: indications of liquids dripping from agitator


Enclosed-vented process units: may enclose process units and operate under negative pressure whileventing all leaks from equipment through a closed-vent system to a control device meeting therequirements of this rule.

Batch processes: may pressure test or monitor equipment for leaks

Exemptions Dual mechanical seal agitators (see Dual Mechanical Seal Systems)

Agitators designed with no externally actuated shaft penetrating the agitator housing

Agitators equipped with closed-vent system and control device (see Closed-vent Systems and ControlDevices)

Agitators located at unmanned plant site are exempt from weekly visual inspection and daily sensorcheck if visually inspected as often as practical and at least monthly

Difficult to monitor agitators exempt if: • agitator cannot be monitored without elevating personnel more than 2 meters above a support

surface or if it is not accessible at any time in a safe manner, • process unit where agitator is located is an existing source or <3% of total number of agitators in

a new source are designated difficult to monitor, and • written plan requires monitoring at least once per calendar year

Unsafe to monitor agitators are exempt if: • monitoring personnel would be exposed to an immediate danger, and • written plan requires monitoring as frequently as practical during safe to monitor times, but not

more frequently than monitoring schedule

Agitators obstructed by equipment or piping that prevents access by a monitor probe

Equipment in vacuum service

Equipment operated fewer than 300 hours per year in organic HAP service

MonitoringMethod

Method 21; no more than 1 cm from rotating shaft • response factor criteria (excluding inerts) for average composition of process fluid • monitor all equipment while it is "in service"







ITEM REQUIREMENTS


RepairRequirements




Allowed for equipment that is isolated from the process and that does not remain in organic HAPservice








ITEM REQUIREMENTS





Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or determination the equipment is

nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.

The owner or operator may develop and cite a written procedure that identifies conditionsjustifying a delay of repair

• documentation of sufficient supply of spare parts on-site before depletion and reason fordepletion if repair delayed because stocked parts were depleted

• copies of periodic reports (if database not capable of generating) • dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak Information to be kept for all agitators: • list of ID numbers of subject equipment • location of equipment on site plan, log entries, etc. • list of ID numbers of equipment equipped with closed-vent system and control device • documentation and dates of visual inspections

Information to be kept for agitators with dual mechanical seal system: • design criteria for indicating failure • explanation for selected criteria • any changes to criteria and reasons for changes

Information to be kept for unsafe to monitor agitators: • identification of equipment designated as unsafe to monitor • plan for monitoring

Information to be kept for difficult to monitor agitators: • list of ID numbers for equipment designated as difficult to monitor • explanation of designation • planned schedule for monitoring

Information and data used to demonstrate that equipment is not in organic HAP service, is in HAPservice fewer than 300 hours/year, or is in heavy liquid service







ITEM REQUIREMENTS



Initial notification: • name and address of owner/operator • address of facility • identification of subject processes • compliance statement • statement if a source can achieve compliance by applicable date

Notification of compliance status: • process unit identification • number of agitators (excluding those in vacuum service) • method of compliance

Subsequent semiannual reports: • the following information for each monitoring period during the 6-month reporting period:

•• number of agitators for which leaks were detected•• number of agitators for which leaks were not repaired as required•• the facts that explain each delay of repair, and where appropriate, why a process unit

shutdown was technically infeasible • revisions to items reported in the notification of compliance status if method of compliance has

changed since the last report • information listed under notification of compliance status for process units with later compliance

dates






ALTERNATIVE MEANS OF EMISSION LIMITATION:ENCLOSED-VENTED PROCESS UNITS

ALTERNATIVE MEANS OF EMISSION LIMITATION:ENCLOSED-VENTED PROCESS UNITS page C-53

ITEM REQUIREMENTS

Basic Standard Process units enclosed in such a manner that all emissions from equipment leaks are vented through aclosed-vent system to a control device. The enclosures shall be maintained under negative pressure atall times the process unit is in operation


Owner/operators shall maintain the following records: • ID numbers of the process units and the organic HAPs they handle • a schematic of the process unit, enclosure, and closed vent system • a description of the system used to create a negative pressure in the enclosure to ensure that all

emissions are routed to the control device


Information for each process unit: • process unit identification • description of the system used to create a negative pressure in the enclosure and the control

device used






ALTERNATIVE MEANS OF EMISSION LIMITATION:BATCH PROCESSES

ALTERNATIVE MEANS OF EMISSION LIMITATION:BATCH PROCESSES page C-54

ITEM REQUIREMENTS

Basic Standard(Alternative)

1) Batch pressure test or2) Meet standards for continuous processes with changes to monitoring

MonitoringOptions

1) Batch pressure testing:

• test batch process equipment using either: •• procedures specified for pressure or vacuum loss [see §63.180(f)] or •• with a liquid using procedures specified in §63.180(g) • each time equipment is reconfigured for production of a different product or intermediate, the

batch product-process equipment train shall be pressure tested for leaks before organic HAP isfirst fed to the equipment and the equipment is placed in organic HAP service

• when the batch product-process train is reconfigured to produce a different product, pressuretesting is required only for the new or disturbed equipment

• each batch process that operates in organic HAP service during a calendar year must be pressuretested at least once during that calendar year

• pressure testing is not required for routine seal breaks, such as changing hoses or filters, whichare not part of the reconfiguration to product a different product or intermediate

• for pressure tests using a gas or a vacuum, a leak is found if the rate of pressure change exceeds1 psig in 1 hour or if there is visible, audible, or olfactory evidence of fluid loss

• for pressure tests using a liquid, a leak is defined as dripping liquid or other evidence of fluidloss from process units

2) Continuous process monitoring method:

• monitor for leaks when the equipment is in organic HAP service, in use with an acceptablesurrogate volatile organic compound which is not an organic HAP, or in use with any otherdetectable gas or vapor

• each time the equipment is reconfigured for the production of a new product, the reconfiguredequipment shall be monitored for leaks within 30 days of start-up of the process; this initialmonitoring of reconfigured equipment shall not be included in determining percent leakingequipment in the process unit.

• connectors are to be monitored in accordance with §63.174 • monitor equipment other than connectors at the frequencies specified in the following schedule:

EQUIPMENT MONITORING FREQUENCIES (other than connectors)

Time in Use (% of year) Equivalent Continuous Process Monitoring Frequency

Monthly Quarterly Semiannually

0 to <25 quarterly annually annually25 to <50 quarterly semiannually annually50 to <75 bimonthly three times/year semiannually75 to 100 monthly quarterly semiannually







ITEM REQUIREMENTS


RepairRequirements

Batch: • when leaks are detected, repairs must be made and a retest conducted before startup of the

process • if the process unit fails this retest or the second of 2 consecutive pressure tests, the equipment

must be repaired as soon as practicable but not later than 30 calendar days after second pressuretest

Continuous: • If a leak is detected, it shall be repaired as soon as practicable but not later than 15 calendar days

after it is detected

Delay of Repair Allowed if the replacement equipment is not available, providing the following conditions are met: • equipment supplies have been depleted and supplies had been sufficiently stocked before the

supplies were depleted • the repair is made no later than 10 calendar days after delivery of the replacement equipment







ITEM REQUIREMENTS


Recordkeeping For each component, all other elements of the rule (leak definition, records, reports, etc.) apply thesame as for continuous processes

Identify equipment on a plant site plan, in log entries, or by other appropriate methods

List of equipment added since last monitoring period

Documentation of any switch from batch process monitoring to pressure testing or vice versa

Record that inspection was performed if no leaks are found

Records of any visible, audible, or olfactory evidence of fluid loss

Batch pressure testing: • batch products or product codes for equipment subject to this monitoring option • identification of each product or product code produced during the calendar year; it is not

necessary to identify individual items of equipment in a batch product process equipment train • records demonstrating the proportion of the time during the calendar year the equipment is in use

in a batch process; examples of suitable documentation are records of time in use for individualpieces of equipment or average time in use for the process unit

• the dates of each pressure test, the test pressure, and the pressure drop observed during the test

When a batch product process equipment train does not pass two consecutive pressure tests, thefollowing information shall be recorded in a log and kept for 2 years: • the date of each pressure test and the date of each leak repair attempt • repair methods applied in each attempt to repair the leak • the reason for the delay of repair • the expected date for delivery of the replacement equipment and the actual date of delivery of the

replacement equipment • the date of successful repair

Continuous process monitoring: • records demonstrating the proportion of the time during the calendar year the equipment is in use

in a batch process; examples of suitable documentation are records of time in use for individualpieces of equipment or average time in use for the process unit; these records are not required ifthe owner or operator does not adjust monitoring frequency by the time in use

C date and results of monitoring for equipment added to the batch process unit since the lastmonitoring period.







ITEM REQUIREMENTS


Reporting Notification of compliance status: • batch products or product codes designated for pressure testing and • a planned schedule for pressure testing when equipment is configured for production of products

subject to provisions of subpart.

Periodic reports: • batch product process equipment train identification • the number of pressure tests conducted • the number of pressure tests where the equipment train failed the pressure test • the facts that explain any delay of repairs • the results of all monitoring to determine compliance of closed-vent systems








ITEM REQUIREMENTS

Basic Standard Control devices and closed-vent systems: operate whenever HAP emissions may be vented to them

Control devices subject to 40 CFR 63 subpart H and 40 CFR 264 subpart BB or 40 CFR 265 subpartBB may comply with the monitoring, recordkeeping and reporting requirements of subpart H or ofparts 264 and/or 265.

Recovery or Recapture Devices:

Vapor recovery systems: 95 percent or greater recovery or an exit concentration of 20 ppmv,whichever is less stringent

Enclosed combustion devices: 95% or more reduction, or 20 ppmv on any basis, corrected to 3%O2, whichever is less stringent, or minimum residence time/temp: 0.50 sec. & 7600 C

Flares: Comply with §63.11(b)

Closed-Vent Systems:

Initial and annual inspection requirements: • hard pipe construction: initial inspection per Method 21, annual visual inspections for

visual, olfactory or audible leaks• duct work construction: initial and annual inspections per Method 21

Leak Definition No detectable emissions (< 500 ppm above background)

Visual inspections

AlternativeStandard



Equipment in organic HAP service fewer than 300 hours per year

Equipment such as low leg drains, high point bleeds, analyzer vents, open-ended valves or lines, andpressure relief valves needed for safety purposes exempt from monitoring requirements

“Unsafe to inspect” parts are exempt from §63.180(b) inspections if: • inspecting personnel would be exposed to an imminent or potential danger, and • the owner or operator has a written plan requiring inspection during safe to inspect times as

frequently as practicable but not more than once per year

“Difficult to inspect” parts are exempt from §63.180(b) inspections if: • the equipment cannot be inspected without elevating the inspecting personnel more than 2 meters

above a support surface, and • the owner or operator has a written plan requiring inspection of the equipment at least once every

5 years







ITEM REQUIREMENTS


MonitoringMethod

Monitor control devices to ensure operated & maintained in conformance with design specifications

By-pass lines: • install, set or adjust and maintain vent stream flow indicator installed at entrance to any bypass

line or • secure valve in non-diverting position with car-seal or lock-and-key type locks with monthly

visual inspection

Method 21: • response factor criteria (excluding inerts) for average composition of process fluid • monitor all equipment while it is "in service"

RepairRequirements




Allowed if emissions of purged material from immediate repair would exceed fugitive emissions fromdelay of repair; required before end of next process unit shutdown

Allowed for equipment that is isolated from the process and that does not remain in organic HAPservice.







ITEM REQUIREMENTS




attached to the leaking equipment • ID may be removed after equipment has been repaired

Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, and ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or if determined to be nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• copies of periodic reports (if database not capable of generating) • dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all closed-vent systems and control devices: • list of ID numbers of subject equipment • location of equipment on site plan, log entries, etc. • list of ID numbers for components equipped with closed-vent system and control device • ID of surge control vessels and bottoms receivers equipped with closed-vent system and control

device • documentation of visual inspections • design specifications (retain for life of equipment)

•• design specifications and performance demonstrations to include detailed schematics andpiping and instrumentation diagrams

•• dates and descriptions of any changes in the design specifications•• flare design and results of compliance demonstration•• description and explanation of control device monitoring parameters

• records of operation (retain for 2 years)•• dates and durations when closed-vent system and control device is not operated as designed

(includes lack of flame in flare pilot light) and when monitoring systems/devices arenonoperative

•• dates and durations of start-ups and shutdowns of control devices • records of inspections (retain for 2 years) •• if no leaks detected: record date and fact of inspection and statement no leaks detected

•• if leaks detected: information specified previously

Information and data used to demonstrate that a closed-vent system and control device is not inorganic HAP service or is in HAP service fewer than 300 hours/year







ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of closed-vent system and control device, excluding those in vacuum service • method of compliance Subsequent semiannual reports: • the facts that explain any delay of repairs • the results of all monitoring of closed-vent systems or of control devices • revisions to items reported in the initial compliance notice if method of compliance has changed

since the last report • if applicable, the compliance option selected for closed-vent systems and control devices






COMPRESSORS


ITEM REQUIREMENTS

Basic Standard Equip with compliant seal system that includes a barrier fluid system that prevents leakage toatmosphere

For each compressor seal system: • operate the barrier fluid at a pressure that is at all times greater than the pump stuffing box

pressure, or • equip with a barrier fluid degassing reservoir that is routed to a process or fuel gas system or

connected by a closed-vent system to a control device, or • equip with a closed-loop system that purges the barrier fluid into a process stream

The barrier fluid system is not in light liquid service


Check sensor daily or equip with audible alarm, unless at an unmanned plant site

Establish criteria that indicates failure of seal system or barrier fluid system or both

Leak Definition Sensor indicates failure of seal or barrier fluid system or both based on established criteria



Enclosed-vented process units: may enclose process units and operate under negative pressure whileventing all leaks from equipment through a closed-vent system to a control device meeting therequirements of the rule


Exemptions Compressors designated to operate with instrument reading of less than 500 ppm above background(see No Detectable Emissions)

Compressors equipped with closed-vent system; returns to a process, fuel gas system or compliantcontrol device (see Closed-vent Systems and Control Devices)

Compressors in vacuum service

Compressors operated fewer than 300 hours per year in organic HAP services

MonitoringMethod

Daily observation of sensors or use of sensor alarm system

RepairRequirements








COMPRESSORS

ITEM REQUIREMENTS







Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or determination to be nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• dates of process unit shutdowns that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all compressors: • list of ID numbers of subject compressors • location of compressor on site plan, log entries, etc. • list of ID numbers of compressors equipped with closed-vent system and control device • list of ID numbers of compressors designated to operate at less than 500 ppm above background • documentation and dates of visual inspections • for each compliance test for compressors designated to operate at less than 500 ppm above

background:•• date conducted and results of test•• background level measured•• maximum instrument reading

• copies of periodic reports (if database not capable of generating)


Information and data used to demonstrate that a compressor is not in organic HAP service or is inHAP service fewer than 300 hours/year






COMPRESSORS

ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of compressors (excluding those in vacuum service) • method of compliance Subsequent semiannual reports: • the following information for each monitoring period during the 6-month period:

•• number of compressors for which leaks were detected•• number of compressors for which leaks were not repaired as required•• the facts that explain each delay of repair, and where appropriate, why a process unit

shutdown was technically infeasible • results of monitoring for compressors designated to operate at less than 500 ppm • revisions to items reported in the notification of compliance status if method of compliance has

changed since the last report • information listed under Notification of Compliance for process units with later compliance dates






CONNECTORS IN GAS/VAPOR AND LIGHT LIQUID SERVICE

CONNECTORS IN GAS/VAPOR AND LIGHT LIQUID SERVICE page C-65

ITEM REQUIREMENTS

Basic Standard Initial survey: • Monitor all connectors within first 12 months after initial start-up (new sources) • Monitor all connectors no later than 12 months after compliance date (existing)

Subsequent monitoring frequency based on percent leaking: • Annual: if $0.5% during last annual or biennial period • Once every 2 years: if <0.5% during last monitoring period (monitor at least 40% of connectors

in first year and remainder in second year) • Once every 4 years: if <0.5% during 2 year monitoring period (monitor at least 20% per year

until all are monitored within 4 years) • Once every 2 years: 0.5 to <1% during 4 year monitoring period (monitor at least 40% of

connectors first year and remainder in second year) • Annual: if >1% during 4 year monitoring period

For any connector that has been opened or otherwise has had its seal broken, monitor whenreconnected or within first 3 months of being returned to HAP service.

If leak is detected and it cannot be repaired, then the connector should be counted as nonrepairablefor purposes of determining monitoring frequency. If the owner or operator chooses not to monitorconnectors that have been opened or otherwise had the seal broken, then he cannot count nonrepairable connectors for the purposes of determining monitoring frequency. The owner oroperator will instead set the nonrepairable component of the monitoring frequency equation to zerofor all monitoring periods.

A switch in alternatives requires initial monitoring no later than 12 months after reporting the switch.

Leak Definition 500 ppm (except for inaccessible, ceramic, or ceramic-lined connectors)



Alternative requirements allowed for screwed connectors less than 2 inches in nominal insidediameter; may comply with 63.169 and monitor within first 3 months of return to organic HAPservice after being opened or having seal otherwise broken

Alternative requirements for connectors that have had the seal broken or otherwise been opened (seeBasic Standard above)







ITEM REQUIREMENTS


Exemptions Connectors in vacuum service

Connectors in organic HAP service fewer than 300 hours per year

"Unsafe-to-monitor" connectors: monitor as frequently as practicable during safe to monitor periods,but no more frequently than the periodic schedule otherwise applicable

"Unsafe-to-repair" connectors: repair by end of the next scheduled process unit shutdown

"Inaccessible" or “ceramic” or "ceramic-lined" connectors: repair any leak observed by visual,audible, olfactory or other means

MonitoringMethod

Method 21 • response factor criteria (excluding inerts) for average composition of process fluid • monitor all equipment while it is "in service"

RepairRequirements



When repaired, monitor at least once within first 3 months of repair


Allowed if emissions of purged materials from immediate repair would exceed fugitive emissionsfrom delay of repair, and purged materials are collected and destroyed or recovered in a controldevice when repair occurs


Calculation ofPercent Leaking

For the first monitoring period: • percent leaking connectors = [number of connectors measured at 500 ppm or greater / (total

number of measured connectors in the process unit + optional credit for removed connectors)] *100

For subsequent monitoring periods: • percent leaking connectors =[ (number of connectors measured at 500 ppm or greater - number of

allowable nonrepairable connectors) / (total number of monitored connectors in the process unit +optional credit for removed connectors)] * 100







ITEM REQUIREMENTS


Optional Creditfor RemovedConnectors

Credit may be given for eliminating connectors if the following requirements are met: • connector was welded after the date of proposal of the specific subpart that references this

subpart • integrity of the weld is demonstrated by monitoring it according to the procedures in 63.180(b) or

by testing using X-ray, acoustic monitoring, hydrotesting, or other applicable method • welds created after the date of proposal but before the date of promulgation of a specific subpart

that references this subpart are monitored or tested by 3 months after the compliance datespecified in the applicable subpart, and

• welds created after promulgation of the subpart that references this subpart are monitored ortested within 3 months after being welded

If an inadequate weld is found or the connector is not welded completely around the circumference,the connector is not considered a welded connector and is therefore not exempt.

In percent leaking connectors equations, optional credit for removed connectors is calculated:0.67 * net (total removed - total added) number of connectors in organic HAP service that areremoved from the process unit after compliance date for existing units and after initial start-up fornew units. If credits are not taken, the credit = 0







ITEM REQUIREMENTS




attached to the leaking equipment • ID may be removed after it has been repaired and monitored when reconnected or within first 3

months of repair and no leak is detected

Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or determination as nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• dates of process unit shutdowns that occurred while the equipment is unrepaired • date of successful repair of the leak • dates and results of monitoring

Information to be kept for all connectors: • identification of connectors, by area or grouping, with total number of connectors within each

group • ID of screwed connectors, by area or grouping, with total number of screwed connectors with

each group • location of areas or groups on site plan, log entries, etc. • schedule by process unit for monitoring connectors • list of connectors removed and added if net credits for their removal are expected to be used • list of ID numbers for connectors in vacuum service • documentation of the integrity of the weld for removed connectors • copies of periodic reports (if database not capable of generating) • ID of connectors open or otherwise had the seal broken since the last monitoring period, and

dates and results of follow-up monitoring

Information to be kept for unsafe to monitor connectors: • identification of equipment designated as unsafe to monitor • plan for monitoring

Information to be kept for unsafe to repair connectors: • list of ID numbers • explanation for designation

Information to be kept for inaccessible, ceramic, and ceramic-lined connectors: • exempt from recordkeeping requirements

Information and data used to demonstrate that connectors are not in organic HAP service, are in HAPservice fewer than 300 hours/year, or are in heavy liquid service







ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of connectors, excluding those in vacuum service • method of compliance

Subsequent semiannual reports: • number of connectors and screwed connectors for which leaks were detected • total number of connectors and screwed connectors monitored • the percent leakers for connectors and screwed connectors • number of connectors and screwed connectors for which leaks were not repaired within 15 days

after detection • identification of the number of connectors determined to be nonrepairable • the facts that explain each delay of repair, and where appropriate, why a process unit shutdown

was technically infeasible • notification of change in connector monitoring alternatives (if applicable) • revisions to items reported in the initial report if method of compliance has changed since the last

report • initiation of monthly monitoring under Phase III or QIP (if applicable) • information listed under notification of compliance status for process units with later compliance

dates

Inaccessible, ceramic, and ceramic-lined connectors exempt from reporting requirements








ITEM REQUIREMENTS


pressure, or • equip with a barrier fluid degassing reservoir that is routed to a process or fuel gas system or

connected by a closed-vent system to a control device, or • equip with a closed-loop system that purges the barrier fluid into a process stream

For all dual mechanical seal systems: • the barrier fluid system is not in light liquid service • barrier fluid system is equipped with a sensor to detect failure of seal system, barrier fluid

system, or both•• check each sensor daily or equip with audible alarm unless located at unmanned site•• determine criterion that indicates failure of the seal system, the barrier fluid system, or both

• perform weekly visual inspections for indications of liquid dripping from the pump seals; monitorif indications observed to determine if there is a leak of HAP in the barrier fluid

Applies as an alternative standard for: • Pumps in Light Liquid Service • Agitators in Gas/Vapor Service and in Light Liquid Service

Leak Definition Indications of liquids dripping from the pump seal and instrument reading of 1000 ppm HAP; failureof sensor criteria


N/A

Exemptions Any affected equipment equipped with a closed-vent system transporting fluid to process fuel gassystem or control device

Unsafe-to-monitor pumps are exempt if: • monitoring personnel would be exposed to an immediate danger • owner/operator has a written plan that requires monitoring as often as practical during safe to

monitor times

If at unmanned plant site, visually inspect as often as practical and at least monthly

MonitoringMethod

Visual, sensor

RepairRequirements


Repair as soon as practicable; no later than 15 days after leak is detected







ITEM REQUIREMENTS


Delay of Repair Allowed if repair requires replacing the existing seal design with a new system that meets improvedperformance criterion






Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number, and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or determined to be nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• expected date of successful repair if leak is not repaired within the 15 days • date of successful repair of the leak

Information to be kept for all dual mechanical seal systems: • list of ID numbers of dual mechanical seal systems • location of equipment on site plan, log entries, etc. • documentation and dates of visual inspections • copies of periodic reports (if database not capable of generating)


Identification, by list or location, of equipment in organic HAP service fewer than 300 hours per year







ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of pumps (excluding those in vacuum service) • method of compliance

Subsequent semiannual reports: • the following information for each monitoring period in the reporting period:

•• number of pumps for which leaks were detected•• percent of pumps leaking •• total number of pumps monitored•• number of pumps for which leaks were not repaired as required•• the facts that explain each delay of repair, and where appropriate, why a process unit

shutdown was technically infeasible • revisions to items reported in the initial notification of compliance if method of compliance has

changed since the last report • information listed under Notification of Compliance for process units with later compliance dates








ITEM REQUIREMENTS

Basic Standard Use cap, blind flange, plug, or second valve to seal open end at all times except when operationsrequire flow through open end or during maintenance and repair

Second valve: close valve on process fluid end prior to closing second valve

Double block and bleed system: bleed line valve may remain open during venting operations thatrequire venting the line between the block valves but comply with basic standard at all other times

Leak Definition N/A



Exemptions Emergency shutdown system

Equipment containing materials which would automatically polymerize or cause a safety hazard ifcapped or equipped with a double block and bleed system


Equipment operated fewer than 300 hours per year

MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all open-ended valves or lines: • list of ID number of subject equipment • location on site plan, log entries, etc.

Copies of periodic reports (if database not capable of generating)

Information and data used to demonstrate that equipment is not in organic HAP service or is in HAPservice fewer than 300 hours/year







ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of open-ended valves or lines (excluding those in vacuum service) • method of compliance

Subsequent semiannual reports: • dates of process unit shutdowns that occurred within the semiannual reporting period • revisions to items reported in the initial report if changes in the method of compliance have

changed since the last report • information listed in notification of compliance status for process units with later compliance

dates








ITEM REQUIREMENTS

Basic Standard Without rupture disk: • operate at less than 500 ppm above background except during pressure releases • within 5 calendar days after each release, return to operating standard and monitor the pressure

relief device (PRD) to confirm • within 5 calendar days after the pressure release and being returned to HAP service, monitor to

confirm 500 ppm above background standard

With rupture disk: • after each release, replace rupture disk within 5 calendar days

Leak Definition < 500 ppm above background



Exemptions Pressure relief device routed to a process or fuel gas system or equipped with compliant closed-ventsystem and control device (see Closed-vent Systems and Control Devices)

Pressure relief device in vacuum service

Pressure relief device in organic HAP service fewer than 300 hours per year

Any pressure relief device equipped with a rupture disk meeting the requirements of the rule

MonitoringMethod

Method 21 • Response factor criteria (excluding inerts) for average composition of process fluid • Monitor all equipment while it is "in service"

RepairRequirements

See basic standard









ITEM REQUIREMENTS





Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number, and operator name, initials, or ID number • date leak detected • dates of first attempt to repair leak • maximum instrument reading after successful repair or determined to be nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• copies of periodic reports (if database not capable of generating such) • expected date of successful repair if leak is not repaired within the 15 days • dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all pressure relief devices: • list of ID numbers of pressure relief devices • list of ID numbers of pressure relief devices equipped with rupture disks • list of ID numbers of pressure relief devices complying with an instrument reading of less than

500 ppm above background standard • location of pressure relief devices on site plan, log entries, etc. • list of ID numbers for pressure relief devices equipped with closed-vent system and control

device • documentation and dates of visual inspections • for monitoring following a pressure release for each PRD:

•• dates and results of monitoring•• background level measured•• maximum instrument reading

Information and data used to demonstrate that a pressure relief device is not in organic HAP serviceor is in HAP service fewer than 300 hours/year







ITEM REQUIREMENTS




Notification of Compliance Status: • process unit identification • number of pressure relief devices, excluding those in vacuum service • method of compliance

Subsequent semiannual reports: • by monitoring period in the reporting period, explanation of why repairs delayed and why a

process unit shutdown was infeasible • for “no detectable emissions” components, results of all monitoring to show compliance with the

operating standard of less than 500 ppm • revisions to items reported in the initial report if changes have occurred since the initial report or

subsequent revisions to the initial report • information listed in Notice of Compliance Status for process units with later compliance dates








ITEM REQUIREMENTS

Basic Standard Monthly leak detection and repair

Weekly visual observation for leaks

For existing sources: • Phase I begins on compliance date • Phase II begins no later than 1 year after compliance date • Phase III begins no later than 2 ½ years after compliance date

For new sources: • Phase II begins after initial start-up • Phase III begins no later than 1 year after initial start-up

Choose no later than first monitoring period whether to calculate percent leaking pumps on a processunit basis or source-wide basis

Phase III: if the greater of 10% or 3 pumps in a process unit leaks (6 month average), QualityImprovement Program (QIP) required

Leak Definition Phase I: 10,000 ppmPhase II: 5,000 ppmPhase III: 5,000 ppm for pumps handling polymerizing monomers

2,000 ppm for pumps in food/medical service1,000 ppm for all other pumps




Enclosed-vented process units: may enclose process units and operate under negative pressure whileventing all leaks from equipment through a closed vent system to a control device meeting therequirements of this rule


“No detectable emissions” pumps (see No Detectable Emissions)







ITEM REQUIREMENTS


Exemptions Dual mechanical seal pumps (see Dual Mechanical Seal System)

Pumps designed with no externally actuated shaft penetrating pump housing

Pump equipped with closed-vent system and control device (see Closed-vent Systems and ControlDevices)

Pumps in vacuum service

Pumps operated fewer than 300 hours per year in organic HAP service

Process units with more than 90% of pumps with dual mechanical seal or closed-vent system areexempt from monthly calculations of percent leaking pumps

If at unmanned site, visually inspect as often as practicable and at least monthly

Unsafe to monitor pumps are exempt if: • monitoring personnel would be exposed to an immediate danger • owner/operator has a written plan that requires monitoring as often as practical during safe to

monitor times, but not more frequently than the periodic monitoring schedule otherwiseapplicable

MonitoringMethod


RepairRequirements



Phase III pumps with leak definition of 1,000 ppm: repair only required for pumps leaking at 2,000ppm or more

Delay of Repair Allowed if technically infeasible without process unit shutdown; required before end of next processunit shutdown.


Allowed if repair requires use of: • a new system determined to provide better performance under provisions of a QIP, or • a dual mechanical seal that includes a barrier fluid system, or • a pump designed with no externally actuated shaft, or • a closed-vent system and control deviceand repair is completed as soon as practicable but not later than 6 months after leak detected







ITEM REQUIREMENTS





Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading (M21) after successful repair or determination the pump is




• dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all pumps: • list of ID numbers of subject pumps • location of pump on site plan, log entries, etc. • list of ID numbers of pumps equipped with closed-vent system and control device • documentation and dates of visual inspections • copies of periodic reports (if database not capable of generating)

Information to be kept for unsafe to monitor pumps: • identification of equipment designated as unsafe to monitor • plan for monitoring

Information to be kept for difficult to monitor pumps: • list of ID numbers • explanation for designation • planned schedule for monitoring

Information to be kept for pumps equipped with dual mechanical seal: • design criteria for indicating failure • explanation for selected criteria • any changes to the criteria, and reason for change

Information and data used to demonstrate that a pump is not in organic HAP service, is in HAPservice fewer than 300 hours/year, or is in heavy liquid service







ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of pumps (excluding those in vacuum service) • method of compliance • planned schedule for each phase of requirements


•• number of pumps for which leaks were detected•• percent of pumps leaking •• total number of pumps monitored•• number of pumps for which leaks were not repaired as required•• the facts that explain each delay of repair, and where appropriate, why a process unit

shutdown was technically infeasible • revisions to items reported in the initial notification of compliance status if method of compliance

has changed since the last report • initiation of monthly monitoring under phase III or QIP (if applicable) • information listed under notification of compliance status for process units with later compliance

dates






PUMPS, VALVES, CONNECTORS, AND AGITATORSIN HEAVY LIQUID SERVICE; INSTRUMENTATION SYSTEMS;

AND PRESSURE RELIEF DEVICES IN LIQUID SERVICE

PUMPS, VALVES, CONNECTORS, AND AGITATORS IN HEAVY LIQUID SERVICE;INSTRUMENTATION SYSTEMS; AND PRESSURE RELIEF DEVICES IN LIQUID SERVICE page C-82

ITEM REQUIREMENTS

Basic Standard Monitoring of potential leaks within 5 calendar days of detection if evidence of potential leak is foundby visual, audible, olfactory, or other detection method, unless repaired as discussed under "RepairRequirements" below

Leak Definition Monitoring: • agitators - 10,000 ppm • pumps - 2,000 ppm • valves, connectors, pressure relief devices, instrumentation systems - 500 ppm • pumps in food/medical service - 2,000 ppm • pumps handling polymerizing monomers - 5,000 ppm

Other: • evidence of potential leak by visual, audible, olfactory or other detection requirement



Enclosed vented process units: may enclose process units and operate under negative pressure whileventing all leaks from equipment through a closed vent system to a control device meeting therequirements of this rule.



Equipment operated fewer than 300 hours per year in organic HAP service

MonitoringMethod


RepairRequirements



For equipment that are not monitored (Method 21), repair shall mean that visual, olfactory or otherindications of a leak have been eliminated; no bubbles are observed at potential leak sites during leadcheck with soap solution; or system will hold a test pressure








ITEM REQUIREMENTS




Valves, connectors and agitators: • Allowed if emissions of purged material resulting from immediate repair would exceed fugitive

emissions from delay of repair and purged material is collected and destroyed or recovered incompliant control device when repair is done

Valves: • Delay beyond a process unit shutdown allowed if sufficiently stocked supplies of valve

assemblies have been depleted

• Delay not allowed beyond the second process unit shutdown unless the third process unitshutdown occurs sooner than 6 months after first process unit shutdown

Pumps: • Allowed if repair requires replacing existing seal design with a new system that provides better

performance, dual mechanical seal system, meets requirements of §63.163(f), or compliantclosed-vent system and control device, and repair is completed as soon as practicable but notlater than 6 months after leak detected



attached to the leaking equipment • ID may be removed after it has been repaired, except valves • ID may be removed from valve after it has been monitored at least once within first 3 months of

repair and no leak is detected • ID may be removed from connector after it has been repaired and monitored when reconnected or

within 3 months of repair and no leak is detected









ITEM REQUIREMENTS



Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, and ID number • date leak detected • dates of each attempt to repair leak • maximum instrument reading after successful repair or determination the equipment is




• dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak

Information to be kept for all equipment: • list of ID numbers of subject equipment (except instrumentation systems) • location of equipment on site plan, log entries, etc. • documentation and dates of visual inspections • ID of instrumentation systems; individual components need not be identified • Information, data, and analysis used to demonstrate that a piece of equipment or process unit is

in heavy liquid service • copies of periodic reports (if database not capable of generating)

Additional information to be kept for connectors: • identification of connectors, by area or grouping, with total number of connectors within each

group • ID of connectors opened or otherwise had the seal broken since the last monitoring period, and

dates and results of follow-up monitoring








ITEM REQUIREMENTS




Notification of compliance status: • process unit identification • number of each type of equipment (excluding those in vacuum service) • method of compliance

Subsequent semiannual reports: • for each monitoring period, the facts that explain each delay of repair, and where appropriate,

why a process unit shutdown was technically infeasible • revisions to items reported in the initial Notification of Compliance Status if method of

compliance has changed since the last report • information listed in the Notification of Compliance Status for process units with later

compliance dates






QUALITY IMPROVEMENT PROGRAM FOR PUMPS IN LIGHT LIQUID SERVICE

QUALITY IMPROVEMENT PROGRAM FOR PUMPS IN LIGHT LIQUID SERVICE page C-86

ITEM REQUIREMENTS

Applicability A technology review of improvement QIP's are required in Phase III if the greater of either 10% ofpumps in a process unit (or plant site) or 3 pumps in a process unit (or plant site) leak

Once < 10% or < 3 pumps leaking is achieved (6 month rolling average), comply with basic standard

If leak rate again exceeds the greater of either > 10% or 3 pumps leaking, can use QIP again

Basic Standard Comply with basic standard for pumps not in QIP

Collect the following data:

Pumps: • type and manufacturer • seal type and manufacturer • pump design • materials of construction • year installed • barrier fluid or packing material

Service characteristics of the stream: • discharge pressure, temperature, flow rate, corrosivity, annual operating hours

Maximum instrument readings before repair, response factor for stream, instrument number, and dateof observation

If leak is detected, repair methods used and the instrument readings after the repair

Inspect all pumps and pump seals that exhibit frequent failure and were removed from the processunit due to leaks; determine probable cause of leaks and recommend changes to reduce leak potential

Continue to collect data as long as part of QIP

Data Analysis Analyze data to determine the services, operating and maintenance procedures, and pumps and pumpseal designs or technologies that have poorer and those that have better than average performance;the first analysis shall be completed no later than 18 months after the start of the program, shall use aminimum of 6 months of data, and shall be done yearly for as long as the process unit is in the QIPprogram. The analysis shall determine if specific trouble areas can be identified.







ITEM REQUIREMENTS


Performance TrialEvaluation

Required for plants that have not demonstrated superior technologies: • the number of pump seal technologies or pumps in the trial program shall be the lesser of 1% or

2 pumps for programs involving single process units and the lesser of 1% or 5 pumps for plantsites or groups of process units; the minimum number of pumps or pump seal technologies in theprogram shall be 1

• the program shall specify and include design documentation, the evaluation stages, frequency ofmonitoring, the range of operating conditions, and conclusions

The performance trials shall be conducted for a 6-month period beginning no later than 18 monthsafter the beginning of the QIP

Conclusions will be drawn no later than 24 months after the beginning of the QIP

Any plant site with fewer than 400 valves and owned by a company with fewer than 100 employeesexempt from trial evaluations. Instead begin pump seal or pump replacement program at the start ofthe fourth year of QIP.

Performance TestEvaluationTermination

Continue to conduct trials as long as no superior performing design or technology has been identifiedor until there are no technically feasible alternatives as demonstrated through an engineeringevaluation. Otherwise the facility may stop conducting performance tests after all alternative superioremission performance technologies have been evaluated and a superior performing design ortechnology has been demonstrated

Quality AssuranceProgram

Establishes minimum design standards for each category of pumps or pump seal technology

Requires that all equipment orders specify the design standard for the pump or pump seal

Provides for an audit procedure for quality control of purchased equipment

Details off-line pump maintenance and repair procedures

Shall be established no later than start of third year of QIP for sites with $400 valves or $100employees; by start of fourth year for others

EquipmentReplacement

Beginning at the start of the third year of the QIP for plants with 400 or more valves or 100 or moreemployees and at the start of the fourth year for others, the owner/operator shall replace the pumpsand pump seals that are not superior emission performance technology with pumps or pump seals ofsuperior technology that comply with QA standards for the pump category.

Pumps or pump seals shall be replaced at the rate of 20% per year based on the total number ofpumps in light liquid service (minimum of one) and shall continue to be replaced until all aresuperior technology







ITEM REQUIREMENTS


Superior EmissionPerformanceTechnology

Category or design of pumps or pump seals that will result in <10% leaking pumps in the processunit of plant site

Includes material or design changes to the existing pump, pump seal, seal support system, installationof multiple mechanical seals or equivalent, or pump replacement


• pump type, manufacturer, seal type and manufacturer, design, materials of construction (ifapplicable), barrier fluid or packing material, and year installed

• service characteristics of the stream, discharge pressure, temperature, flow rate, corrosivity, andannual operating hours

• maximum instrument readings before repair, response factor, instrument number, and date ofobservation

• if leak detected, the repair method used and the instrument reading after repair • if data analyzed as part of a larger analysis program; describe any maintenance or QIP intended

to improve emission performance • rolling average percent leaking pumps • documentation of all inspections and recommendations for design or specification changes to

reduce leak frequency • beginning and end dates while meeting requirements of the QIP • reason for any leak repair delay and expected date of successful repair • records of all analyses required under §63.176(d), including:

•• list identifying areas associated with poorer than average performance and associatedservice characteristics of the stream, operating conditions, and maintenance procedures

•• reasons for rejecting specific candidate superior emission performing pump technology fromperformance trials

•• list of candidate superior emission performing pump technologies and documentation ofperformance trial program items required under 63.176(d)(6)(iii)

•• beginning date and duration of performance trials for each candidate superior emissionperforming technology

• records documenting the quality assurance program, as specified in 63.176(d)(7) • records indicating all pumps replaced or modified are in compliance with the quality assurance

program • records documenting compliance with 20% or greater annual replacement rate for pumps • information and data showing company has fewer than 100 employees


Semiannual reports: • initiation of monthly monitoring under Phase III or QIP (if applicable)






QUALITY IMPROVEMENT PROGRAM FOR VALVES

QUALITY IMPROVEMENT PROGRAM FOR VALVES page C-89

ITEM REQUIREMENTS

Applicability Optional in Phase III to owners/operations with # 2% leakers

Decision required within first year of Phase III

If rolling average of percent leakers is < 2% for 2 consecutive quarters: 1) comply with QIP, 2)comply with valve standard, or 3) comply with both QIP and valve standard

If continuing QIP, exempt from performance trial requirements or further progress as long as processunit has <2% leaking valves

If not continuing QIP (i.e., complying with valve standard) cannot use QIP again if leak rate goesabove 2%; monthly monitoring is required

If complying with both QIP and valve standard, owner/operator may use the following monitoringfrequencies: • if <2% leaking, then monitor once per quarter • if <1% leaking, then monitor once every 2 quarters • if <0.5% leaking, then once every 4 quarters

Demonstration ofFurther Progress

Comply with valve standard except monitor quarterly

Collect data and maintain records as follows: • maximum instrument reading observed in each monitoring, response factor, model number, and

date of observation • classification of valve "gas or light liquid service" • repair method used and instrument readings after repair (monitoring required at least once

within the first 3 months after the repair is completed)(ID tag on a leaking valve may be removedafter the valve successfully passes this monitoring period)

Continue to collect data for as long as the process unit is in QIP

Demonstrate progress in reducing the percent leaking valves each quarter by at least: • 10 percent (meaning that each quarter there is at least a 10 percent reduction in the percent

leaking valves from the preceding monitoring period) or • determine required quarterly percent reduction and to less than 2% within 2 years

The provisions for failure to meet the 10% reduction for 2 consecutive rolling averages are: • a choice of monthly monitoring, or • implementation of a QIP for technology review as specified in §63.175(e)







ITEM REQUIREMENTS


Data Collection(TechnologyReview andImprovement)

Data collection for as long as in QIP: • valve type and manufacturer, valve design, materials of construction, year installed, and packing

material • service characteristics of the stream (e.g., operating pressure, temperature, line diameter,

corrosivity) • gas/vapor or light liquid service • repair methods used and the instrument readings after the repair • maximum instrument reading before repair, response factor, model number, and date of

observation • description of use of any maintenance or quality assurance programs intended to improve

emissions

Inspect all valves removed due to leaks to determine cause of failure and recommend design andother changes to reduce leak potential

Data Analysis(TechnologyReview andImprovement)

Analyze data to determine the services, operating and maintenance procedures, and valve designs ortechnologies that have poorer and those that have better than average performance to determinespecific trouble areas; the first analysis shall be completed no later than 18 months after the start ofthe program, shall use a minimum of 6 months of data, shall be done yearly for as long as the processunit is in the QIP program

Definition ofSuperiorPerforming ValveTechnology

Technology for valves having a leak frequency of <2% for specific applications in process unit

Candidate demonstrates or reports having low emission performance and capable of achieving <2%leaking valves in process unit

Performance TestTrial Evaluation(TechnologyReview andImprovement)

Required for plants that have not demonstrated superior technologies: • the number of valves in the trial program shall be the lesser of 1% or 20 valves for programs

involving single process units and the lesser of 1% or 50 valves for programs involving groups ofprocess units

• the program shall specify and include design documentation, the evaluation stages, frequency ofmonitoring, the range of operating conditions, and conclusions regarding performance andoperating conditions and services

Any plant site with fewer than 400 valves and owned by a company with fewer than 100 employeesexempt from trial evaluations. Instead begin program at the start of the fourth year of Phase III

The performance trials shall be conducted for a 6-month period beginning no later than 18 monthsafter the beginning of the QIP

Conclusions will be drawn no later than 24 months after the beginning of the QIP

Performance test trials will continue as long as no superior design or technology is identified







ITEM REQUIREMENTS


Quality AssurancePlan

Program shall be established no later than the start of the third year of Phase III for plant sites with$400 valves or $100 employees, and no later than the start of the fourth year of Phase III for plantswith < 400 valves and <100 employees

Program shall be reviewed and updated (as appropriate) each year as long as the process unit has$2% leaking valves

Program shall:C Establish minimum design standards for each category of valvesC Require that all equipment orders specify the design standardC Include a written procedure for bench testingC Require that all valves repaired on-line be monitored for 2 successive months after repairC Provide for an audit procedure for quality control of purchased equipmentC Detail off-line valve maintenance and repair procedures

EquipmentReplacement(TechnologyReview andImprovement)

Beginning at the start of the third year of Phase III for plants with 400 or more valves or 100 or moreemployees and at the start of the fourth year of Phase III for others, each replacement valve shall meetquality assurance and superior emission performance technology standards

If superior emission performance technology cannot be identified, replacement valve shall be onewith lowest emission performance technologies identified for the specific application


QIP: • reason for any leak repair delay and expected date of successful repair • records of all analyses required under §63.175(e) • records documenting the quality assurance program • records indicating all valves replaced or modified are in compliance with the quality assurance

requirements • information and data showing company has fewer than 100 employees

Recordkeeping forQIP- Demonstration ofReasonableFurther Progress

QIP - reasonable further progress: • owner or operator shall collect the following data and maintain records for each valve in each

process unit subject to the QIP•• maximum instrument reading before repair, response factor, instrument model number, and

date of observation•• whether valve is in gas or light liquid service•• if leak detected, the repair methods used and instrument reading after repair

• percent leaking valves and rolling average percent reduction observed each quarter • beginning and end dates while meeting the requirements of the QIP







ITEM REQUIREMENTS


Recordkeeping forQIP - TechnologyReview andImprovement

QIP - technology review and improvement: • valve type, manufacturer, design, materials of construction, packing material, and year installed • service characteristics of the stream (e.g. operating pressure, temperature, line diameter,

corrosivity) • whether valve is in gas/vapor or light liquid service • if leak detected, maximum instrument reading before repair, response factor, model number, and

date of observation • if leak detected, the repair method used and the instrument reading after repair • if data analyzed as part of a larger analysis program; describe any maintenance or QIP intended

to improve emission performance • percent leaking valves observed each quarter • documentation of all inspections and recommendations for design or specification changes to

reduce leak frequency • beginning and end dates while meeting requirements of the QIP of technology review and

improvement


Subsequent semiannual reports: • initiation of monthly monitoring under Phase III or QIP (if applicable)








ITEM REQUIREMENTS

Basic Standard Equipped with closed-purge system or closed-vent system that returns the fluid to the process line;recycles the purged fluid; sends it to a compliant control device; or collects, stores and transports it toan appropriate facility

Gases displaced during filling of samples are not required to be collected or captured

Leak Definition N/A



Exemptions Sampling systems in vacuum service

In-situ sampling systems and sampling systems without purges

Sampling systems in organic HAP service fewer than 300 hours per year

MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all sampling connections • list of ID numbers of subject sampling connection systems • location of sampling system on site plan, log entries, etc.

Information and data used to demonstrate that equipment is not in organic HAP service or is in HAPservice fewer than 300 hours/year.







ITEM REQUIREMENTS




Notification of Compliance Status: • process unit identification • number of sampling connection systems, excluding those in vacuum service • method of compliance

Subsequent semiannual reports: • for each monitoring period during the 6 month period, the facts that explain any delay of repairs

and, where appropriate, why a process unit shutdown was infeasible • revisions to items reported in the initial notification of compliance status if the method of

compliance has changed since the last report • information listed under Notice of Compliance Status for process units with later compliance

dates






SURGE CONTROL VESSELS AND BOTTOM RECEIVERS

SURGE CONTROL VESSELS AND BOTTOM RECEIVERS page C-95

ITEM REQUIREMENTS

Basic Standard Use of closed-vent system that routes the organic vapors either back to process or to compliant controldevice

Comply with the requirements under §63.119(b) for fixed roofs with internal floating roofs or under§63.119(c) for external floating roofs

Leak Definition N/A




Equipment in organic HAP service fewer than 300 hours per year

Surge control vessels routed back to process

Surge control vessels that do not meet certain capacity and vapor pressure criteria; see Tables 2 and 3of Subpart H

MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept for all equipment: • list of ID numbers of subject equipment • location of equipment on site plan, log entries, etc. • ID of surge control vessels or bottoms receivers equipped with a closed vent system or control

device

Information and data used to demonstrate that equipment is not in organic HAP service or is in HAPservice fewer than 300 hours/year






SURGE CONTROL VESSELS AND BOTTOM RECEIVERS

ITEM REQUIREMENTS

SURGE CONTROL VESSELS AND BOTTOM RECEIVERS page C-96



Notification of Compliance Status: • process unit identification • number of each type of equipment, excluding those in vacuum service • method of compliance

Subsequent semiannual reports: • revisions to items reported in the Notification of Compliance Status if the method of compliance

has changed since the last report • Information listed in the Notice of Compliance Status for process units with later compliance

dates






VALVES IN GAS VAPOR AND LIGHT LIQUID SERVICE


ITEM REQUIREMENTS

Basic Standard Phase I & II: Monitor each valve quarterly

Phase III: Monitoring frequency based on percent valves found leaking:Percent Leaking Monitoring Frequency2% (or more) Monthly or QIP<2% Quarterly<1% Quarterly or once every 2 quarters<0.5% Quarterly or once every 4 quarters

For existing sources: • Phase I begins on compliance date • Phase II begins no later than 1 year after compliance date • Phase III begins no later than 2 ½ years after compliance date

For new sources: • Phase II begins after initial start-up • Phase III begins no later than 1 year after initial start-up

Leak Definition Phase I: 10,000 ppmPhase II: 500 ppmPhase III: 500 ppm



QIP for valves (Phase III)


Valves in organic HAP service fewer than 300 hours per year

Valves designated unsafe to monitor or difficult to monitor (at new facilities, maximum 3% of valvesmay be designated as difficult to monitor)

Equipment located at plant sites with fewer than 250 valves is exempt from monthly monitoring;instead monitor once per quarter or comply with percent leak requirements for <1% or 0.5%, asapplicable

MonitoringMethod

Method 21 • response factor criteria (excluding inerts) for average composition of process fluid • monitor all equipment while it is "in service"







ITEM REQUIREMENTS


RepairRequirements



When repaired, monitor at least once within first 3 months of repair




Allowed beyond process unit shutdown if valve assembly replacement supplies are exhausted and hadbeen sufficiently stocked before supplies were depleted

Not allowed beyond second process unit shutdown unless third shutdown occurs sooner than 6months after first shutdown







ITEM REQUIREMENTS




attached to the leaking equipment • ID may be removed after it has been repaired and monitored at least once within first 3 months of

repair and no leak is detected

Information to be kept in log for 2 years after leak detected: • instrument and equipment ID number and operator name, initials, or ID number • date leak detected • date of first attempt to repair leak • maximum instrument reading after successful repair or if determined to be nonrepairable • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection.



• dates of process unit shutdown that occurred while the equipment is unrepaired • date of successful repair of the leak • copies of periodic reports (if database not capable of generating)

Information to be kept for all valves: • list of ID numbers of subject valves • location of valve on-site plan, log entries, etc. • schedule by process unit for monitoring valves • list of valves removed and added to a process unit after the compliance date if net credits for

their removal are expected to be used

Information to be kept for difficult to monitor valves: • list of ID numbers • explanation for designation • planned schedule for monitoring

Information to be kept for unsafe to monitor valves: • identification of equipment designated as unsafe to monitor • plan for monitoring

Information and data used to demonstrate that a valve is not in organic HAP service, is in HAPservice fewer than 300 hours/year, or is in heavy liquid service







ITEM REQUIREMENTS




Notification of Compliance Status: • process unit identification • number of valves, excluding those in vacuum service • method of compliance • planned schedule for each phase


•• number of valves for which leaks were detected•• total number of valves monitored•• the percent leakers for valves•• number of valves for which leaks were not repaired within 15 days after detection•• identification of the number of valves determined to be nonrepairable•• explanation of why repairs delayed and why a process unit shutdown was infeasible

• revisions to items reported in the initial compliance notice if the method of compliance haschanged since the last report

• initiation of monthly monitoring under Phase III or QIP (if applicable) • information listed in the Notice of Compliance Status for process units with later compliance

dates








ITEM REQUIREMENTS


Each piece of equipment shall be marked in such a manner to distinguish it readily from other piecesof equipment

Applies to equipment containing or contacting hazardous waste with minimum organic concentrationsof 10% by weight

Control Devices: • vapor recovery systems: 95 percent by weight or greater recovery unless total organic emission

limits of §265.1032(a)(l) for all affected processes can be attained at an efficiency of less than 95percent

• carbon adsorbers: carbon replacement intervals specified • enclosed combustion devices (e.g., vapor incinerator, boiler, or process heater): 95 percent or

greater reduction, 20 ppmv total organic compound concentration, or minimum residence time of0.50 seconds at a minimum temperature of 760 °C; boilers and process heaters: introduce ventstream into flame combustion zone

• flares: basic requirements for visible emissions, heat content, exit velocities, and flare design;flame present at all times

Closed-Vent Systems: • designed to operate with no detectable emissions, indicated by instrument reading of less than

500 ppmv above background and by visual inspections; or • designed to operate at a pressure below atmospheric pressure

Monitoring: • Control devices:

•• monitor to ensure operated and maintained in conformance with their designs•• specific requirements identified for vent stream flow monitors and other monitors for

specific types of control devices • Closed-vent systems:

•• initial leak detection monitoring to demonstrate that closed-vent system operates with nodetectable emissions (<500 ppmv above background)

•• initial inspection to be performed on or before the system is subject to regulation•• closed-vent system joints, seams or other connections that are permanently or semi-

permanently sealed shall be visually inspected at least once per year•• components shall be monitored after repair or replacement or after connection is unsealed•• closed-vent system components or connections (except those designated unsafe to monitor)

shall be monitored annually and at other times as requested by the Regional Administrator



N/A







ITEM REQUIREMENTS


Exemptions Equipment which contains or contacts a hazardous waste of at least 10% by weight for a period offewer than 300 hours per year

Any components of a closed-vent system designated as unsafe to monitor are exempt from annualmonitoring if: • monitoring personnel would be exposed to an immediate danger, and • the owner or operator adheres to a written plan that requires monitoring as frequently as

practicable during safe to monitor times

MonitoringMethod

Method 21 (closed-vent systems)

Specified monitoring procedures for control devices

RepairRequirements



Delay of Repair Allowed if technically infeasible without process unit shutdown or if emissions from immediaterepair would be greater than fugitive emissions from delay of repair; required before end of nextprocess unit shutdown

Allowed for equipment that is isolated from the process and that does not remain in contact withorganic hazardous waste at least 10% by weight


Information to be kept for each closed vent system and control device: (information to be maintainedin facility’s operating record) • equipment ID and hazardous waste management unit ID • approximate location within facility on facility plot plan • type of equipment • percent by weight total organics in hazardous waste stream • hazardous waste state at the closed-vent system and control device • method of compliance with the standard • implementation schedule for installation and operation of closed-vent system and control device

if unable to install and comply by the effective date of the rule • performance test plan if using test data to demonstrate the organic removal efficiency or total

organic compound concentration achieved by the closed-vent system and control device including:•• description of how the test will be conducted when the hazardous waste management unit is

operating at the highest load or capacity level reasonably expected to occur, includingestimated or design flow rate and organic content of each vent stream and definition ofacceptable operating ranges of key process and control parameters during the test program








ITEM REQUIREMENTS



•• a detailed engineering description of the closed-vent system and control device including:••• manufacturers name and model number••• type of control device••• dimensions of control device••• capacity••• construction materials

•• a detailed description of sampling and monitoring procedures, including location in thesystem, equipment used, sampling and monitoring frequency and planned analyticalprocedures

• documentation of compliance with standard including detailed design documentation orperformance test results specified in 264.1035(b)(4) and 265.1035(b)(4)

• design documentation and operating, monitoring, and inspection information for each closed ventsystem and control device as specified in 264.1035(c) and 265.1035(c); maintain for 3 years

• for control devices other than thermal vapor incinerators, catalytic vapor incinerators, flares,boilers, process heaters, condensers, or carbon adsorption systems, monitoring and inspectioninformation indicating proper operation and maintenance

• list of ID numbers for the closed vent systems and control devices • list of ID numbers for equipment in vacuum service • identification, by list or location, of equipment that contains or contacts hazardous waste with an

organic concentration of at least 10% by weight for a period of less than 300 hours/year

Information to be kept for the purpose of determining exemptions: • analysis determining the design capacity of the hazardous waste management unit • statement listing the hazardous waste influent to and effluent from each hazardous waste

management unit and an analysis determining whether these are heavy liquids • up-to-date analysis and supporting information and data used to determine if equipment is

subject to the requirements of the rule including supporting documentation required by264.1063(d)(3) and 265.1063(d)(3). A new determination is required when the owner/operatortakes any action that could result in an increase in the total organic content of the wastecontained in or contacted by equipment previously determined not be subject

Information to be kept for unsafe to monitor closed-vent system and control device: • identification of equipment designated as unsafe to monitor • explanation stating why the closed-vent system is unsafe to monitor • plan for monitoring

In addition: • Part 264 - for “other” control devices - monitoring and inspection criteria indicating proper

operation and maintenance of the control device will be determined by the RegionalAdministrator







ITEM REQUIREMENTS



Semiannual report requirements: • Part 265:

•• None

• Part 264:*•• the EPA ID number, name and address of the facility•• dates of hazardous waste management unit shutdowns that occurred within the semiannual

reporting period•• for each month during the semiannual reporting period, if any control device exceeded or

operated outside design specifications and was not corrected within 24 hours, report theduration and cause of each exceedance, and any corrective measures taken

* If, during the semiannual reporting period, leaks from valves, pumps, and compressors are repairedas required, and no control device exceeds or operates outside of design specifications for more than24 hours, a report is not required.






COMPRESSORS


ITEM REQUIREMENTS

Basic Standard Equip with compliant seal system that includes a barrier fluid system that prevents leakage toatmosphere

For each barrier fluid system: • operate the barrier fluid at a pressure that is at all times greater than the pump stuffing box

pressure, or • connect the barrier fluid degassing reservoir by a closed-vent system to a compliant control

device, or • equip with a system that purges the barrier fluid into a hazardous waste stream with no

detectable emissions to the atmosphere (less than 500 ppm above background)

The barrier fluid system must not be a hazardous waste with organic concentrations 10% or greater byweight


Check sensor daily or equip with audible alarm that is checked monthly; if at unmanned plant site,check sensor daily


Leak Definition Sensor indicates failure of seal system, barrier fluid system, or both based on established criteria


N/A

Exemptions Equipment designated for no detectable emissions (less than 500 ppm above background) (see NoDetectable Emissions)


Equipment equipped with closed vent system and control device capable of capturing and transportingleakage from the seal to a compliant control device (see Closed-vent Systems and Control Devices)

MonitoringMethod

Observation of sensor

Method 21 for no detectable emissions

RepairRequirements








COMPRESSORS

ITEM REQUIREMENTS


Delay of Repair Allowed if technically infeasible without hazardous waste management unit shutdown; requiredbefore end of next waste management unit shutdown



When leak detected: • a weather-proof and readily visible identification, marked with the equipment ID number and

date leak was detected, attached to the leaking equipment • ID may be removed after it has been repaired

Information to be kept in log for 3 years after leak detected: • instrument and operator ID numbers and equipment ID number • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is $ 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a

process shutdown • expected date of successful repair if leak is not repaired within the 15 days • date of successful repair of the leak

Information to be kept for all compressors: • compressor ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the compressor • hazardous waste state at the compressor • method of compliance • list of ID numbers of subject compressors • list of ID numbers of compressors designated for no detectable emissions and signed by



• list of ID numbers for compressors in vacuum service • identification, by list or location, of equipment that contains or contacts hazardous waste with an

organic concentration of at least 10% by weight for a period of fewer than 300 hours per year








COMPRESSORS

ITEM REQUIREMENTS





subject to the requirements of the rule including supporting documentation required by264.1063(d)(3) and 265.1063(d)(3). A new determination is required when the owner/operatortakes any action that could result in an increase in the total organic content of the wastecontained in or contacted by equipment previously determined not be subject



•• None

• Part 264:*•• the EPA ID number, name and address of the facility•• for each month during the semiannual reporting period:

••• the ID number for each compressor for which a leak was not repaired as required••• if control device for any compressor exceeded or operated outside of design

specification and was not corrected within 24 hours, report the duration and cause ofeach exceedance, and any correction measures taken.

•• dates of hazardous waste management unit shutdowns that occurred within the semiannualreporting period

* If, during the semiannual reporting period, leaks from valves, pumps, and compressors are repairedas required, and no control device exceeds or operates outside of design specifications for more than24 hours, a report is not required








ITEM REQUIREMENTS

Basic Standard For each dual mechanical seal system that includes a barrier fluid system: • operate the barrier fluid at a pressure that is at all times greater than the pump stuffing box

pressure, or • connect the barrier fluid degassing reservoir by a closed-vent system to a compliant control

device, or • equip with a system that purges the barrier fluid into a hazardous waste stream with no

detectable emissions to the atmosphere (less than 500 ppm above background)

The barrier fluid system must not be a hazardous waste with organic concentrations 10% or greater byweight

Equip each barrier fluid system with a sensor that detects failure of the seal system, barrier fluidsystem, or both • check each sensor daily or equip with audible alarm; check audible alarm monthly to ensure it is

working

Visually inspect weekly for indications of liquids dripping from the pump seals

Establish criteria, based on design and operating experience, that indicates failure of the seal system,barrier fluid, or both

Applies as an alternative to pumps in light liquid service

Leak Definition Indications of liquids dripping from the pump seal or sensor detection, based on failure criteria


N/A

Exemptions Designated for no detectable emissions (less than 500 ppm above background) and if no externallyactuated shaft penetrates pump housing and pump is tested for compliance initially, annually, and atother times requested by Administrator (see No Detectable Emissions)

Equipped with closed-vent system capable of capturing and transporting leakage from the seal(s) to acompliant control device (see Closed-vent Systems and Control Devices)

MonitoringMethod

Visual, sensor, criteria

RepairRequirements









ITEM REQUIREMENTS


Delay of Repair If repair requires use of a dual mechanical seal that includes a barrier fluid system and repair iscompleted as soon as practicable but no later than 6 months after leak detected





date leak was detected, attached to the leaking equipment • ID may be removed after it has been repaired

Information to be kept in inspection log for 3 years after leak detected: • instrument ID; operator name, initials, or ID number; and equipment ID number • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is > 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a

hazardous waste management shutdown • expected date of successful repair if leak is not repaired within the 15 days • date of successful repair of the leak

Information to be kept for all dual mechanical seal systems: • list of ID numbers of dual mechanical seal systems • list of ID numbers designated for no detectable emissions and signed by owner/operator • for each compliance test for components designated for no detectable emissions:

•• dates conducted•• background level measured•• maximum instrument reading

• list of ID numbers of mechanical seal systems in vacuum service • equipment ID number and hazardous waste management unit ID • approximate facility location on facility plot • type of equipment • percent-by-weight of total organics in hazardous waste at the equipment • hazardous waste state at the equipment • method of compliance • identification, by list or location, of equipment that contains or contacts hazardous waste with an

organic concentration of at least 10% by weight for a period of fewer than 300 hours per year









ITEM REQUIREMENTS





subject to the requirements of the rule including supporting documentation required by264.1063(d)(3) and 265.1063(d)(3). A new determination is required when the owner/operatortakes any action that could result in an increase in the total organic content of the wastecontained in or contacted by equipment previously determined not to be subject



•• None

• Part 264:*•• the EPA ID number, name, and address of the facility•• by month in the reporting period, dates of hazardous waste management unit shutdowns that

occurred•• ID number for any pump not repaired on time

* If, during the semiannual reporting period, leaks from valves, pumps and compressors are repairedas required and the control device does not exceed or operate outside of the design specifications formore than 24 hours, no report to the Regional Administrator is required.








ITEM REQUIREMENTS

Basic Standard Has an instrument reading of less than 500 ppm above background as measured by the methodsspecified in 264.1063(c) and 265.1063(c)

Test for compliance initially upon designation, annually, and as requested by the RegionalAdministrator

Applies as an exemption to: • pumps (must have no externally actuated shaft penetrating the pump housing) • valves in gas/vapor service or in light liquid service(must have no external actuating mechanism

in contact with the hazardous waste stream) • compressors

Applies as basic standard for: • closed-vent systems • pressure relief devices in gas/vapor service

Leak Definition < 500 ppm above background


N/A

Exemptions N/A

MonitoringMethod

Method 21

RepairRequirements

N/A

Delay of Repair N/A


Information to be kept: • list of ID numbers of equipment designated for no detectable emission and signed by









ITEM REQUIREMENTS




•• None

• Part 264:•• None specific to no detectable emissions








ITEM REQUIREMENTS


Second valve: close valve on process fluid end prior to closing second valve

Double block and bleed system: bleed lines may remain open during operations that require ventingthe line between the block valves but comply with basic standard at all other times

Leak Definition N/A


N/A


MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A







ITEM REQUIREMENTS



Information to be kept for all open-ended valves or lines: • equipment ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the valve • hazardous waste state at the valve • method of compliance • list of ID numbers of subject valves and lines • list of ID numbers of equipment in vacuum service • identification either by list or location of equipment that contains or contacts hazardous waste

with an organic concentration of at least 10% by weight for a period of fewer than 300 hours peryear






•• None

• Part 264:•• None specific to open-ended valves or lines








ITEM REQUIREMENTS

Basic Standard No detectable emissions (less than 500 ppm above background)

After each release return to no detectable emissions within 5 calendar days as indicated by monitoringof the pressure relief device

Leak Definition No detectable emissions (< 500 ppm above background)


N/A

Exemptions Pressure relief devices in vacuum service

Pressure relief device equipped with compliant closed-vent system and control device

MonitoringMethod

Method 21

RepairRequirements

See basic standard

Delay of Repair Allowed if technically infeasible without process unit shutdown; required before end of nextmanagement unit shutdown

Allowed for equipment that is isolated from the process and that does not remain in contact withorganic hazardous waste by 10% weight







ITEM REQUIREMENTS



Information to be kept for all pressure relief devices: • pressure relief device ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the pressure relief device • hazardous waste state at the pressure relief device • method of compliance • list of ID numbers of subject pressure relief devices • list of ID numbers for pressure relief devices in gas/vapor service required to comply with “no

detectable emissions” • for each compliance test for pressure relief devices designated for no detectable emissions:


• list of ID numbers for pressure relief devices in vacuum service • identification, either by list or location, of equipment that contains or contacts hazardous waste


The following information shall be recorded in a log that is kept in the facility operating record foruse in determining exemptions: • analysis determining the design capacity of the hazardous waste management unit • statement listing the hazardous waste influent to and effluent from each hazardous waste

management unit and an analysis determining whether these hazardous wastes are heavy liquids • up-to-date analysis and the supporting information and data used to determine whether or not

equipment is subject to the requirements of the rule including supporting documentation requiredby 264.1063(d)(3) and 265.1063(d)(3). A new determination is required when theowner/operator takes any action that could result in an increase in the total organic content of thewaste contained in or contacted by equipment previously determined not to be subjectrequirements



•• None


••• if control device for any pressure release device exceeded or operated outside ofdesign specification and was not corrected within 24 hours, report the duration andcause of each exceedance, and any correction measures taken.

••• dates of hazardous waste management unit shutdowns that occurred within thesemiannual reporting period









ITEM REQUIREMENTS

Basic Standard Monitoring of potential leaks within 5 calendar days of detection if evidence of potential leak is foundby visual, audible, olfactory, or other detection method



N/A


MonitoringMethod

Method 21

RepairRequirements



Delay of Repair Allowed if technically infeasible without hazardous waste management unit shutdown; requiredbefore end of next hazardous waste management unit shutdown

Allowed for equipment that is isolated from the process and that does not remain in contact withorganic hazardous waste of at least 10% by weight

Valves: • Allowed if emissions of purged material from immediate repair would exceed fugitive emissions

from delay of repair, and purged materials are collected and destroyed or recovered in acompliant control device when repair occurs

• Allowed beyond process unit shutdown if valve assembly replacement is necessary and otherwisesufficient supply of valve assembly replacements is exhausted

• Not allowed beyond next shutdown unless next unit shutdown occurs sooner than 6 months afterfirst unit shutdown

Pumps: • Repair requires use of dual mechanical seal system that includes barrier fluid and repair

completed as soon as practicable but no later than 6 months after leak detected







ITEM REQUIREMENTS



When leak detected: • a weather-proof and readily visible identification, marked with the equipment ID number, date

evidence of a potential leak found, and date leak detected, attached to the leaking equipment

Information to be kept in log for 3 years after leak detected: • instrument and operator ID numbers and equipment ID number • date evidence of potential leak found • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is $ 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a

process shutdown • documentation supporting delay of repair of a valve • expected date of successful repair if leak is not repaired within 15 days • date of successful repair of the leak

Information to be kept for all equipment: • equipment ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the equipment • hazardous waste state at the equipment • method of compliance • list of ID numbers of subject equipment • list of ID numbers for equipment in vacuum service • identification, either by list or location, of equipment that contains or contacts hazardous waste

with an organic content of at least 10% by weight for a period of less than 300 hours per year


management unit and an analysis determining whether these are heavy liquids • up to date analysis and supporting information and data used to determine if equipment is subject

to the requirements of the rule including supporting documentation required by 264.1063(d)(3)and 265.1063(d)(3). A new determination is required when the owner/operator takes any actionthat could result in an increase in the total organic content of the waste contained in or contactedby equipment previously determined not to be subject







ITEM REQUIREMENTS




•• None

• Part 264:*•• the EPA ID number, name, and address of the facility•• dates of hazardous waste management unit shutdowns that occurred within the semiannual

period









ITEM REQUIREMENTS

Basic Standard Non-dual mechanical seal pumps: Monitor monthly and conduct weekly visual inspections forindications of liquids dripping from pump seal




No externally actuated shaft penetrating pump housing

Operate with no detectable emissions

Test for compliance upon designation, annually, and when requested by Regional Administrator

Exemptions Pumps in vacuum service

Any pump equipped with a compliant closed-vent system and control device

Any pump equipped with a dual mechanical seal: specific operating and design requirements (seeDual Mechanical Seal System)

Any pumps designated for no detectable emissions (less than 500 ppm above background) (see NoDetectable Emissions)

MonitoringMethod

Method 21

RepairRequirements



Delay of Repair Allowed if technically infeasible without hazardous work management unit shutdown; required beforeend of next hazardous waste management unit shutdown


Allowed if repair requires use of a dual mechanical seal system that includes a barrier fluid systemand repair is completed as soon as practicable, but not later than 6 months after leak detected







ITEM REQUIREMENTS




date leak detected, attached to the leaking equipment • ID may be removed after it has been repaired

Information to be kept in log for 3 years after leak detected: • instrument ID, operator ID, and equipment ID numbers • date leak detected • dates of each attempt to repair leak • repair methods applied in each attempt to repair • "above 10,000" if maximum instrument reading after each repair attempt is > 10,000 ppm • "repair delayed" and reason for delay if leak not repaired within 15 calendar days after detection • signature of owner/operator whose decision it was that repair could not be effected without a

process shutdown • expected date of successful repair if leak is not repaired within the 15 days • date of successful repair of the leak

Information to be kept for all pumps: • pump ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the pump • hazardous waste state at the pump • method of compliance • list of ID numbers of subject pumps • list of ID numbers of pumps designated for no detectable emissions and signed by owner/operator • for each compliance test for pumps designated for no detectable emissions:


• list of ID numbers for pumps in vacuum service • identification, either by list or location, of equipment that contains or contacts hazardous waste


Information to be kept for pumps equipped with dual mechanical seal: • design criteria for indicating failure • explanation for selected criteria • any changes to the criteria, and reason for change







ITEM REQUIREMENTS



The following information shall be recorded in a log that is kept in the facility operating record foruse in determining exemptions: • an analysis determining the design capacity of the hazardous waste management unit • a statement listing the hazardous waste influent to and effluent from each hazardous waste

management unit and an analysis determining whether these hazardous wastes are heavy liquids • an up-to-date analysis and the supporting information and data used to determine whether or not

equipment is subject to the requirements of the rule including supporting documentation requiredby 264.1063(d)(3) and 265.1063(d)(3). A new determination is required when theowner/operator takes any action that could result in an increase in the total organic content of thewaste contained in or contacted by equipment previously determined not to be subject.



• None


••• the ID number for each pump for which a leak was not repaired as required••• if control device for any pump exceeded or operated outside of design specification

and was not corrected within 24 hours, report the date, duration and cause of eachexceedance, and any correction measures taken.










ITEM REQUIREMENTS

Basic Standard Equipped with closed-purge closed vent loop system or closed-vent system that returns the fluid to theprocess, recycles the purged fluid to a compliant waste management unit, or sends it to a compliantcontrol device

Leak Definition N/A


N/A



Sampling systems without purges

MonitoringMethod

N/A

RepairRequirements

N/A

Delay of Repair N/A







ITEM REQUIREMENTS



Information to be kept for all sampling connections: • sampling connection system ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the sampling connection system • hazardous wastes state at the sampling connection system • method of compliance • list of ID numbers of sampling connection systems subject to the rule • list of ID number of equipment in vacuum service • identification, either by list or location, of equipment that contains or contacts hazardous waste




subject to the requirements of the rule including supporting documentation required by264.1063(d)(3) and 265.1063(d)(3). A new determination is required when the owner/operatortakes any action that could result in an increase in the total organic content of the wastecontained in or contacted by equipment and control devices previously determined not to besubject



•• None


••• if control device for any sampling connection system operated outside of designspecification and was not corrected within 24 hours, report the duration and cause ofeach exceedance, and any correction measures taken










ITEM REQUIREMENTS


If valve does not leak for 2 consecutive months, may be monitored quarterly

If valve leaks, monitor monthly until no leak is detected for 2 consecutive months



Allowable percentage of valves leaking or skip period leak detection and repair


Valves designated for no detectable emissions (less than 500 ppm above background) (see NoDetectable Emissions)

No external activating mechanism in contact with hazardous waste stream; is tested for complianceannually, initially, and as requested by the Regional Administrator

Valves designated unsafe to monitor: owner/operator follows with plan to monitor as frequently aspracticable during safe to monitor times

Valves designated as difficult to monitor at hazardous waste management units in operation prior toJune 21, 1990, and owner/operator follows written plan that requires monitoring of valves at leastonce per calendar year

MonitoringMethod

Method 21

RepairRequirements









ITEM REQUIREMENTS




Allowed if emissions of purged material from immediate repair would exceed fugitive emissions fromdelay of repair, and purged materials are collected and destroyed or recovered in a compliant controldevice when repair occurs

Allowed beyond process unit shutdown if valve assembly replacement is necessary and otherwisesufficient supply of valve assembly replacements is exhausted

Not allowed beyond next unit shutdown unless next unit shutdown occurs sooner than 6 months afterfirst unit shutdown



date leak detected, attached to the leaking equipment • ID may be removed after it has been repaired and monitored for 2 successive months with no

leaks detected during those two months


process shutdown • documentation supporting delay of repair • expected date of successful repair if leak is not repaired within the 15 days • date of successful repair of the leak

Information to be kept for all valves: • valve ID number and hazardous waste management unit identification • approximate facility location • type of equipment • percent-by-weight of total organics in hazardous waste at the valve • hazardous waste state at the valve • method of compliance • list of ID numbers of subject valves • list of ID numbers of valves designated for no detectable emissions and signed by owner/operator • for each compliance test for valves designated for no detectable emissions:









ITEM REQUIREMENTS



• list of ID numbers for valves in vacuum service • identification, either by list or location, of equipment that contains or contacts hazardous waste



Information to be kept for valves complying with the skip leak detection and repair alternativestandards: • schedule of monitoring • percent of valves found leaking during each monitoring period

Information to be kept for the purposes of determining exemptions: • analysis determining the design capacity of the hazardous waste management unit • statement listing the hazardous waste influent to and effluent from each hazardous waste





•• None


••• the ID number for each valve for which a leak was not repaired as required••• dates of hazardous waste management unit shutdowns that occurred within the

semiannual reporting period



THIS PAGE INTENTIONALLY LEFT BLANK

APPENDIX D

REGULATED EQUIPMENT

REGULATED EQUIPMENT page D-1

gland

Fluid

area

Pump stuffing box

Figure 3-1. Diagram of simple packed seal (U.S. EPA, 1980b).

Chapter 3Regulated Equipment

Equipment leak standards are designed to controlemissions of VOCs and VHAPs from regulatedequipment through the application of work practicesand equipment practices. The work practice mostcommonly applied to control equipment leaks is theLDAR program, which is discussed in detail inSection 2.2.4.2. Subsequent chapters address themonitoring, recordkeeping, and reportingrequirements of implementing a LDAR programunder NSPS or NESHAP standards. In this chapter,regulated equipment is reviewed to illustrate howmonitoring programs are applied to specific piecesof equipment.

Equipment practices include the use of specifictypes of components, equipment design standardsor specifications, and operational standards forcertain types of equipment. Equipment practices areevaluated using performance standards that providea basis for monitoring or substantiating theeffectiveness of such control practices. Equipmentpractices, briefly summarized in Section 2.2.4.3, areaddressed in greater detail in this chapter.

A general set of equipment is covered by all of theequipment leak standards. Some equipment iscovered only by specific standards. For example,product accumulator vessels are covered only by theequipment leak standards for benzene. Also, thevinyl chloride fugitive emission standards coveradditional sources (loading and unloading lines,agitators, slip gauges, opening of equipment, and in-process wastewater). Except for agitators, however,the emissions from these sources generally are notconsidered “equipment leaks.” The equipment leakstandards also identify requirements for closed-ventsystems and control devices that may be used tocomply with the regulations.

3.1 PumpsPumps are used extensively in the SOCMI andpetroleum refinery industries, as well as in naturalgas processing plants, for moving organic fluids. Themost widely used pump is the centrifugal pump.Other types of pumps that also may be used are thepositive-displacement, reciprocating and rotaryaction, and special canned-motor and diaphragmpumps (U.S. EPA, 1990).

Chemicals transferred by pumps can leak at thepoint of contact between the moving shaft andstationary casing. To isolate the pump’s interior fromthe atmosphere, all pumps, except the seal-less type(canned-motor and diaphragm), require a seal at thepoint where the shaft penetrates the housing. Themost commonly used seals in these pumps arepacked and mechanical (U.S. EPA, 1980a).

3.1.1 Packed SealsPacked seals can be used on both reciprocating androtary action pumps. A packed seal consists of acavity (“stuffing box”) in the pump casing filled withspecial packing material that is compressed with apacking gland to form a seal around the shaft. Asimple packed seal is illustrated in Figure 3-1. Toprevent buildup of frictional heat, lubrication isrequired. A sufficient amount of liquid (either theliquid being pumped or another liquid that isinjected) must be allowed to flow between thepacking and the shaft to provide the necessarylubrication. If this packing and/or the shaft seal facedegrade after a period of usage, organic compoundscan leak to the atmosphere.


Figure 3-2. Diagram of basic single mechanical seal (U.S.EPA, 1980b).

Tandem Arrangement

Figure 3-3. Typical arrangements of dual mechanicalpump seals (U.S. EPA, 1984).

Back-to-Back Arrangement

3.1.2 Single Mechanical SealsMechanical seals, limited in application to pumpswith rotating shafts, can be single or dual. Basicdesigns of mechanical seals vary, but all have alapped seal face between a stationary element anda rotating seal ring (Ramsden, 1978). In a singlemechanical seal application, the rotating-seal ringand stationary element faces are lapped to a veryhigh degree of flatness to maintain contact over theirshared surface area (Figure 3-2). The faces are heldtogether by a combination of pressure supplied by aspring and the pump pressure transmitted throughthe liquid that is being pumped. An elastomer sealsthe rotating face to the shaft. The stationary face issealed to the stuffing box with another elastomer orgasket. As with packed seals, the faces must belubricated: however, because of the mechanicalseal’s construction, much less lubrication is needed.Again, if the seal becomes imperfect because ofwear, the organic compounds being pumped canleak between the seal faces and can be emitted tothe atmosphere.

3.1.3 Dual Mechanical SealsDual mechanical seals (Figure 3-3) can be arrangedback to back, in tandem, or face to face. In the back-to-back arrangement, the two seals form a closedcavity. A barrier fluid, such as water or seal oil, iscirculated through the cavity. Because the barrierfluid surrounds the dual seal and lubricates both setsof seal faces, the heat transfer and seal lifecharacteristics of this dual seal are much better thanthose of the single seal. In order for the seal tofunction, the barrier fluid must be at a pressuregreater than the operating pressure of the stuffingbox. As a result, some barrier fluid will leak across

the seal faces. Liquid leaking across the inboardface will enter the stuffing box and mix with theprocess liquid. Barrier fluid going across theoutboard face will exit to the atmosphere. Therefore,the barrier fluid must be compatible with the processliquid and with the environment (Ramsden, 1978, p.99).


Figure 3-4. Diagram of seal-less canned-motor pump (U.S.EPA, 1990, P. 2-11).

Figure 3-5. Diagram of diaphragm pump (U.S. EPA, 1990, p. 2-13).

In a tandem dual mechanical seal arrangement, theseals face the same direction, and the secondaryseal provides a backup for the primary seal. A sealflush is used in the stuffing box to remove the heatgenerated by friction. As with the back-to-back sealarrangement, the cavity between the two tandemseals is filled with a barrier fluid. The barrier fluid,however, is at a pressure lower than that in thestuffing box. Therefore, any leakage will be from thestuffing box into the seal cavity containing thebarrier fluid. Since this liquid is routed to a closedreservoir, process liquid that leaks into the sealcavity also will be transferred to the reservoir. At thereservoir, the process liquid could vaporize and beemitted to the atmosphere. To ensure that VOCs orVHAPs do not leak from the reservoir, the reservoircan be vented to a control device.

Another arrangement of dual seals is face to face. Inthis configuration, two rotating faces are mated witha common stationary barrier. Barrier fluid may beprovided at higher or lower pressures than in thestuffing box. As in the tandem arrangement, if thebarrier fluid is at a lower pressure than in the stuffingbox, the barrier fluid reservoir may require venting toa control device.

3.1.4 Seal-less PumpsThe seal-less pump includes canned-motor anddiaphragm pumps. In canned-motor pumps (Figure3-4), the cavity housing, the motor rotor, and thepump casing are interconnected. As a result, themotor bearings run in the process liquid and all shaftseals are eliminated. Because the process liquid isthe bearing lubricant, abrasive solids cannot be

tolerated. Canned-motor pumps are used widely forhandling organic solvents, organic heat transferliquids, light oils, and many toxic or hazardousliquids. Canned-motor pumps also are used whenleakage is an economic problem (Perry and Chilton,1978, p. 6-8).

Diaphragm pumps (Figure 3-5) perform similarly topiston and plunger pumps. The driving member,however, is a flexible diaphragm fabricated ofmetal, rubber, or plastic. The primary advantage ofthis arrangement is that no packing and shaft sealsare exposed to the process liquid, which is animportant asset when handling hazardous or toxicliquids.

3.2 CompressorsIn the industries affected by these standards,centrifugal, reciprocating, and rotary compressorsare used. The centrifugal compressor uses arotating element or series of elements containingcurved blades to increase the pressure of a gas bycentrifugal force. Reciprocating and rotarycompressors increase pressure by confining the gas


AtmosphereInternalgas pressure

Labyrinth Seal

Port may beadded forsealing

Internalgaspressure

sphere

Restrictive Ring Seal

Single Mechanical Seal Liquid Film Seal

Figure 3-6. Typical designs of mechanical compressor seals (Ramsden, 1978, p.99).


Disc

Figure 3-7. Diagram of a spring-loaded relief valve (U.S. EPA,1990, p.2-16).

in a cavity and progressively decreasing the volumeof the cavity. Reciprocating compressors usually usea piston and cylinder arrangement, while rotarycompressors use rotating elements such as lobedimpellers or sliding vanes.

As with pumps, seals are required to preventleakage from compressors. Rotary shaft seals forcompressors may be labyrinth, restrictive carbonrings, mechanical contact, or liquid film. Figure 3-6is an illustration of typical designs of these four typesof seals. All of these seals are leak restrictiondevices, but none of them completely eliminatesleakage. To respond to leakage, many compressorsare equipped with ports in the seal area thatevacuate collected gases.

3.2.1 LabyrinthThe labyrinth seal is composed of a series of closetolerance, interlocking “teeth” that restrict the flow ofgas along the shaft. Many variations in “tooth”design and materials of construction are available.Although labyrinth seals as a group have the largestleak potential of the different types, properly appliedvariations in tooth configuration and shape canreduce leakage by up to 40 percent over a straight-pass-type labyrinth (Nelson, 1977).

3.2.2 Carbon RingsRestrictive carbon ring seals consist of multiplestationary carbon rings with close shaft clearances.These seals may be operated dry with a sealing fluidor with a buffer gas. Restrictive ring seals canachieve lower leak rates than can the labyrinth type.

3.2.3 MechanicalMechanical contact seals are a common type of sealfor rotary compressor shafts and are similar to themechanical seals described for pumps. In this typeof seal, the clearance between the rotating andstationary elements is reduced to zero, and oil oranother suitable lubricant is supplied to the sealfaces. Mechanical seals can achieve the lowest leakrates of the types discussed here, but they are notsuitable for all processing.

3.2.4 PackedPacked seals are used for reciprocating compressorshafts. As with pumps, the packing in me stuffingbox is compressed with a gland to form a seal.Packing used on reciprocating compressor shafts isoften of the “chevron” or netted V type. To ensureoperating safety, the area between the compressorseals and the compressor motor (distance piece)

normally is enclosed and vented outside of thecompressor building. If hydrogen sulfide is presentin the gas, then the vented vapors are flarednormally.

Reciprocating compressors can use a metallicpacking plate and nonmetallic partially compressiblematerial (i.e., Graffoil, Teflon) or oil wiper rings toseal shaft leakage to the distance piece.Nevertheless, some leakage into the distance piecemay occur.

3.2.5 Liquid Film SealsIn addition to having seal types like those used forpumps, centrifugal compressors can be equippedwith a liquid-film seal. The seal is a film oil thatflows between the rotating shaft and the stationarygland. The oil that leaves the compressor from thepressurized system side is under the system internalgas pressure and is contaminated with the gas.When this contaminated oil is returned to the openoil reservoir, process gas and entrained VOCs andVHAPs can be released to the atmosphere.

3.3 Pressure Relief DevicesEngineering codes require the use of pressure-relieving devices or systems in applications wherethe process pressure may exceed the maximumallowable working pressure of the vessel. Thepressure relief valve is the most common type ofpressure-relieving device used. Typically, reliefvalves are spring-loaded (see Figure 3-7) and


Disc

Seat

From system

Rupture disc

ToAtmosphericvent

Figure 3-8. Typical design of a pressure relief valve mountedon a rupture disc device (Ramsden, 1978, p.99)

Figure 3-9. Diagram of two closed-loop sampling systems(Ramsden, 1978, p. 99).

designed to open when the system pressureexceeds a set pressure, allowing the release ofvapors or liquids until the system pressure isreduced to its normal operating level. When thenormal pressure is re-attained, the valve reseats,and a seal is again formed. The seal is a disc on aseat, and a leak through this seal is a potentialsource of VOC and VHAP fugitive emissions. Thepotential causes of leakage from relief valves are"simmering or popping” (a condition that occurswhen the system pressure comes close to the setpressure of the valve); improper reseating of thevalve after a relieving operation; and corrosion ordegradation of the valve seat (U.S. EPA, 1980a, p.3-3).

Rupture discs also may be used to relieve pressurein process units (see Figure 3-8). These discs aremade of a material that ruptures when a set pressureis exceeded, thus allowing the system todepressurize. The advantage of a rupture disc is thatthe disc seals tightly and does not allow any VOC orVHAP to escape from the system during normaloperations. When the disc ruptures, however, thesystem will depressurize until atmosphericconditions are obtained, unless the disc is used witha pressure relief valve.

3.4 Sampling Connections

Process unit operations are checked periodically byroutine analysis of feedstocks and products. Toobtain representative samples for these analyses,sampling lines first must be purged. If the flushingliquid is not controlled, it could be drained onto theground or into a process drain where it wouldevaporate and release VOCs or VHAPs to theatmosphere. Closed-loop sampling systems controlthe purged process fluid by returning it directly tothe process line, collecting and recycling the fluid, ortransporting the fluid to a control device. Thesesampling system controls typically allow zero VOCor VHAP emissions to the atmosphere. Two closed-loop sampling systems are illustrated in Figure 3-9.

3.5 Open-ended Lines or Open ValvesSome valves are installed in a system so that theyfunction with the downstream line open to theatmosphere. Open-ended lines, which are usedmainly in intermittent service for sampling andventing, include purge, drain, and sampling lines.Some open-ended lines are needed to preserveproduct purity. Normally, these are installedbetween multi-use product lines to prevent productsfrom collecting in cross-tie lines during valve seatleakage. A faulty valve seat or incompletely closedvalve would result in leakage through the valve,releasing fugitive VOC or VHAP emissions to theatmosphere.

Operational requirements specify that open-endedvalves or lines be equipped with a cap, blind flange,plug, or second valve. The purpose of the cap, blindflange, plug, or second valve is to seal the open endat all times, except during operations requiringprocess fluid flow through the open-ended valve orline.


Figure 3-11. Diagram of a ball valve (U.S. EPA, 1990, p.2-21).

Handwheel

Disc

Figure 3-10. Diagram of a globe valvewith a packed seal (U.S.EPA, 1980b).

If a second valve is used, the open-ended line orvalve is to be operated so that the valve on theprocess fluid end is closed before the second valveis closed. If a double block-and-bleed system isbeing used, the bleed valve or line may remain openduring operations that require venting the linebetween the block valves. At all other times, theopen end of the bleed valve or line must be sealed(again, except during operations requiring processfluid flow through the open-ended line or valve).

3.6 Process ValvesOne of the most common pieces of equipmentaffected by these standards is the process valve.Commonly used types are control, globe, gate, plug,ball, relief, and check valves (see Figures 3-10 and3-11). All except the relief valve (see Section 3.3)and check valve are activated through a valve stem,which may have either a rotational or linear motion,depending on the design. The valve stem requires aseat to isolate the process fluid inside the valve fromthe atmosphere. The possibility of a leak throughthis seal makes it a potential source of fugitiveemissions. Since a check valve has no stem orsubsequent packing gland, it is not considered apotential source of fugitive emissions.

The stem can be sealed to prevent leakage by usinga packing gland or O-ring seals. Valves that requirethe stem to move in and out with or without rotationmust use a packing gland. Conventional packingglands are suited for a wide variety of packingmaterial. The most common are various types ofbraided asbestos that contain lubricants. Otherpacking materials include graphite, graphite-impregnated fibers, and tetrafluorethylene polymer.The packing material used depends on the valveapplication and configuration. These conventionalpacking glands can be used over a range ofoperating temperatures, but at high pressures, theseglands must be quite tight to obtain a good seal(Templeton, 1971).

Elastomeric O-rings also are used for sealingprocess valves. These O-rings provide good sealing,but are not suitable if sliding motion occurs throughthe packing gland. These seals are used rarely inhigh pressure service, and operating temperaturesare limited by the seal material.

Bellows seals are more effective for preventingprocess fluid leaks than is the conventional packinggland or any other gland-seal arrangement. Thistype of seal incorporates a formed metal bellowsthat makes a barrier between the disc and body

bonnet joint (see Figure 3-12). The bellows is the


Figure 3-14. Diagram of a bonnet diaphragm seal (U.S.EPA, 1990, p. 2-24).

Bellows

Figure 3-12. Diagram of a sealed bellows valve (U.S. EPA,1990, p. 2-23).

Figure 3-13. Diagram of a weir diaphragm seal (U.S.EPA, 1990, p. 2-24).

weak point of this type of system, and service lifecan be quite variable. Consequently, this type ofseal normally is backed up with a conventionalpacking gland and often is fitted with a leak detectorin case of failure.

A diaphragm may be used to isolate the workingparts of the valve and the environment from theprocess liquid. Illustrated in Figures 3-13 and 3-14are two types of diaphragm seals. The diaphragmalso may be used to control the flow of the processfluid. In this design, a compressor componentpushes the diaphragm toward the valve bottom,throttling the flow. The diaphragm and compressorare connected in a manner so that separating themis impossible under normal working conditions.When the diaphragm reaches the valve bottom, itseats firmly against the bottom, forming a leak-proofseal. This configuration is recommended for fluidscontaining solid particles and for medium-pressureservice. Depending on the diaphragm material, thistype of valve can be used at temperatures up to205oC and in severe acid solutions. If the seal fails,however, a valve using a diaphragm seal canbecome a source of fugitive, emissions (Pikulik,1978, pp. 3-23 and 3-24).

3.7 Flanges and Other ConnectorsFlanges are bolted, gasket-sealed junctions usedwherever pipes or other equipment such as vessels,pumps, valves, and heat exchangers may requireisolation or removal. Connectors are all othernonwelded fittings that serve a similar purpose toflanges, which also allow bends in pipes (elbows),joining two pipes (couplings), or joining three or tourpipes (tees or crosses). Connectors typically arethreaded.


Flanges may become fugitive emissions sourceswhen leakage occurs because of improperly chosengaskets or poorly assembled flanges. The primarycause of flange leakage is thermal stress, whichcauses deformation of the seal between the flangefaces. Threaded connectors may leak if the threadsbecome damaged or corroded or if tightened withoutsufficient lubrication or torque. LDAR programs arethe principal control technique for flanges and otherconnectors.

3.8 Product Accumulator VesselsThe background information document for theproposed benzene standards (U.S. EPA. 1980b)states that product accumulator vessels includeoverhead and bottoms receiver vessels used withfractionation columns and product separator vesselsused in series with reactor vessels to separatereaction products. Accumulator vessels can bevented directly to the atmosphere or indirectlythrough a blowdown drum or vacuum system. Whenan accumulator vessel contains benzene and ventsto the atmosphere, benzene emissions can occur.This equipment is covered only by the benzeneequipment leak standards.

The benzene standards require each productaccumulator vessel to be equipped with a closed-vent system capable of capturing and transportingany leakage from the vessel to a control device.Acceptable control devices include vapor recoverysystems, enclosed combustion devices, or flares.These control systems are described in Section3.10.

3.9 AgitatorsAgitators are used to stir or blend chemicals. Likepumps and compressors, agitators may leak organicchemicals at the point where the shaft penetratesthe casing. Consequently, seals are required tominimize fugitive emissions. Four sealarrangements commonly are used with agitators:compression packing (packed seal), mechanicalseals, hydraulic seals, and lip seals. Packed sealsfor agitators are very similar in design andapplication to packed seals for pumps (Ramsey andZoller, 1976).

Although mechanical seals are more costly than theother three types of seals, they offer a greatlyreduced leakage rate to offset their higher cost.Furthermore, the maintenance frequency ofmechanical seals is one-half to one-fourth that ofpacked seals. At pressures greater than 1,140 kPa

(150 psig), the leakage rate and maintenancefrequency are so superior that the use of packedseals on agitators is rare. As with packed seals, themechanical seals for agitators are similar in designand application to the mechanical seals for pumps.

The hydraulic seal, which is the simplest and leastused agitator shaft seal, has an annular cupattached to the process vessel that contains a liquidthat is in contact with an inverted cup attached tothe rotating agitator shaft. The primary advantage ofthis seal is that it is a noncontact seal. Use of thisseal, however, is limited to low temperatures andpressures and very small pressure fluctuations. Inaddition, organic chemicals may contaminate theseal liquid and then be released into the atmosphereas fugitive emissions.

A lip seal can be used on a top-entering agitator asa dust or vapor seal. The sealing element is aspring-loaded elastomer. Lip seals are relativelyinexpensive and easy to install. Once the seal hasbeen installed, the agitator shaft rotates incontinuous contact with the lip seal. Pressure limitsof the seal are 2 to 3 psig because it operateswithout lubrication, and operating temperatures arelimited by the characteristics of the elastomer.Fugitive emissions can be released through this sealwhen the seal wears excessively or the operatingpressure surpasses the pressure limits of the seal.

3.10 Closed-Vent Systems and ControlDevicesA closed-vent system can be used to collect anddispose of gaseous VOC emissions from seal oildegassing vents, pump and compressor sealleakage, relief valve leakage, and relief valvedischarges because of over-pressure operation. Aclosed-vent system consists of piping connectors,flame arrestors, and, if necessary, flow-inducingdevices. Closed-vent systems are designed andoperated so that all VOC emissions are transportedto a control device without leakage to theatmosphere.

Several types of control devices can be used todispose of VOC and VHAP emissions captured inthe closed-vent system. Incineration, carbonadsorption, and condensation are three controlmethods that typically are applied. Controlefficiencies of the three methods are dependent onspecific operating characteristics and the types ofemissions being generated. Typically, enclosedcombustion devices (boilers, process heaters, and


thermal and catalytic incinerators) can achievebetter than 95 percent destruction efficiencies. Thekey parameters affecting destruction efficiency areresidence time and temperature. Carbon adsorptionsystems can achieve 95 to 99 percent controlefficiency through proper design and operation,while condensation systems can achieve captureefficiencies of 90 percent or more.

Flares commonly found at plants subject to thesestandards include steam-assisted, air-assisted, non-assisted, ground, and dual-flare systems. Certainflares have demonstrated destruction efficienciesequal to those of enclosed combustion devicesprovided certain design specifications (heat contentand exit velocity) are met (U.S. EPA, 1985).

3.11 ReferencesWhen an NTIS number is cited in a reference, thatdocument is available from:

National Technical Information Service5285 Port Royal RoadSpringfield, VA 22161703-487-4650

Nelson, W.E. 1977. Compressor seal fundamentals.Hydrocarbon Processing 56(12):91-95.December.

Perry, R.H. and C.H. Chilton. 1978. ChemicalEngineer’s Handbook, 5th Edition. McGraw-HillBook Company, New York, NY. pp. 6-8.

Pikulik, A. 1978. Manually operated valves.Chemical Engineering 85(7):121. April 3. pp. 3-23, 3-24.

Ramsden, J.H. 1978. How to choose and installmechanical seals. Chemical Engineering85(22):97-102. October 9.

Ramsey, W.D. and G.C. Zoller. 1976. How thedesign of shafts, seals and impellers affectsagitator performance. Chemical Engineering83(18): 101-108. August 30.

Templeton, H.C. 1971. Valve installation, operationand maintenance. Chemical Engineering78(23):141-149. October 11.

U.S. EPA. 1990. U.S. Environmental ProtectionAgency. Inspection techniques for fugitive VOCemission sources: Course module 5380.

Student’s manual. EPA-340/1-90-026a.Washington, DC. September.

U.S. EPA. 1985. U.S. Environmental ProtectionAgency. Polymer manufacturing industry:Background information for proposed standards.EPA-450/3-83-019a. NTIS PB88-114996.Research Triangle Park, NC. September.

U.S. EPA. 1984. U.S. Environmental ProtectionAgency Fugitive VOC emissions in the syntheticorganic chemicals manufacturing industry. EPA-625/10-84-004. Research Triangle Park, NC, andCincinnati, OH. December.

U.S. EPA. 1980a. U.S. Environmental ProtectionAgency. VOC fugitive emissions in syntheticorganic chemicals manufacturing industry:Background information for proposed standards.EPA-450/3-80-033a. NTIS PB81-152167.Research Triangle Park, NC. November.

U.S. EPA. 1980b. U.S. Environmental ProtectionAgency. Benzene fugitive emissions:Background information for proposed standards.EPA-450/3-80-032a. NTIS PB81-151664.Research Triangle Park, NC. November.



APPENDIX E

METHOD 21 (40 CFR 60, APPENDIX A)

METHOD 21 (40 CFR 60, APPENDIX A) page E-1

EMISSION MEASUREMENT TECHNICAL INFORMATION CENTERNSPS TEST METHOD(EMTIC M-21, 2/9/93)

Method 21 - Determination of Volatile Organic Compound Leaks

1. APPLICABILITY AND PRINCIPLE

1.1 Applicability. This method applies to the determination of volatile organic compound(VOC) leaks from process equipment. These sources include, but are not limited to,valves, flanges and other connections, pumps and compressors, pressure relief devices,process drains, open-ended valves, pump and compressor seal system degassing vents,accumulator vessel vents, agitator seals, and access door seals.

1.2 Principle. A portable instrument is used to detect VOC leaks from individual sources.The instrument detector type is not specified, but it must meet the specifications andperformance criteria contained in Section 3. A leak definition concentration based on areference compound is specified in each applicable regulation. This procedure is intendedto locate and classify leaks only, and is not to be used as a direct measure of massemission rate from individual sources.

2. DEFINITIONS

2.1 Leak Definition Concentration. The local VOC concentration at the surface of aleak source that indicates that a VOC emission (leak) is present, The leak definition is aninstrument meter reading based on a reference compound.

2.2 Reference Compound. The VOC species selected as an instrument calibration basisfor specification of the leak definition concentration. (For example, if a leak definitionconcentration is 10,000 ppm as methane, then any source emission that results in a localconcentration that yields a meter reading of 10,000 on an instrument meter calibrated withmethane would be classified as a leak. In this example, the leak definition is 10,000 ppm,and the reference compound is methane.)

2.3 Calibration Gas. The VOC compound used to adjust the instrument meter readingto a known value. The calibration gas is usually the reference compound at a knownconcentration approximately equal to the leak definition concentration.

2.4 No Detectable Emission. The total VOC concentration at the surface of a leaksource that indicates that a VOC emission (leak) is not present. Since background VOCconcentrations may exist, and to account for instrument drift and imperfect reproducibility,a difference between the source surface concentration and the local ambient concentrationis determined. A difference based on the meter readings of less than a concentration


corresponding to the minimum readability specification indicates that a VOC emission(leak) is not present. (For example, if the leak definition in a regulation is 10,000 ppm,then the allowable increase is surface concentration versus local ambient concentrationwould be 500 ppm based on the instrument meter readings.)

2.5 Response Factor. The ratio of the known concentration of a VOC compound to theobserved meter reading when measured using an instrument calibrated with the referencecompound specified in the applicable regulation.

2.6 Calibration Precision. The degree of agreement between measurements of thesame known value, expressed as the relative percentage of the average differencebetween the meter readings and the known concentration to the known concentration.

2.7 Response Time. The time interval from a step change in VOC concentration at theinput of the sampling system to the time at which 90 percent of the corresponding finalvalue is reached as displayed on the instrument readout meter.

3. APPARATUS

3.1 Monitoring Instrument.

3.1.1 Specifications

a. The VOC instrument detector shall respond to the compounds being processed.Detector types which may meet this requirement include, but are not limited to, catalyticoxidation, flame ionization, infrared absorption, and photoionization.

b. The instrument shall be capable of measuring the leak definition concentrationspecified in the regulation.

c. The scale of the instrument meter shall be readable to + or - 5 percent of the specifiedleak definition concentration.

d. The instrument shall be equipped with a pump so that a continuous sample is providedto the detector. The nominal sample flow rate shall be 0.1 to 3.0 liters per minute.

e. The instrument shall be intrinsically safe for operation in explosive atmospheres asdefined by the applicable U.S.A. standards (e.g., National Electrical Code by the NationalFire Prevention Association).

f. The instrument shall be equipped with a probe or probe extension for sampling not toexceed 1/4 in. in outside diameter, with a single end opening for admission of sample.


3.1.2 Performance Criteria.

a. The instrument response factors for the individual compounds to be measured mustbe less than 10.

b. The instrument response time must be equal to or less than 30 seconds. Theresponse time must be determined for the instrument configuration to be used duringtesting.

c. The calibration precision must be equal to or less than 10 percent of the calibrationgas value.

d. The evaluation procedure for each parameter is given in Section 4.4.

3.1.3 Performance Evaluation Requirements.

a. A response factor must be determined for each compound that is to be measured,either by testing or from reference sources. The response factor tests are required beforeplacing the analyzer into service, but do not have to be repeated at subsequent intervals.

b. The calibration precision test must be completed prior to placing the analyzer intoservice, and at subsequent 3-month intervals or at the next use whichever is later.

c. The response time test is required before placing the instrument into service. If amodification to the sample pumping system or flow configuration is made that wouldchange the response time, a new test is required before further use.

3.2 Calibration Gases.

The monitoring instrument is calibrated in terms of parts per million by volume (ppm)of the reference compound specified in the applicable regulation. The calibration gasesrequired for monitoring and instrument performance evaluation are a zero gas (air, lessthan 10 ppm VOC) and a calibration gas in air mixture approximately equal to the leakdefinition specified in the regulation. If cylinder calibration gas mixtures are used, theymust be analyzed and certified by the manufacturer to be within + or - 2 percent accuracy,and a shelf life must be specified. Cylinder standards must be either reanalyzed orreplaced at the end of the specified shelf life. Alternatively, calibration gases may beprepared by the user according to any accepted gaseous preparation procedure that willyield a mixture accurate to within + or - 2 percent. Prepared standards must be replacedeach day of use unless it can be demonstrated that degradation does not occur duringstorage. Calibrations may be performed using a compound other than the reference compoundif a conversion factor is determined for that alternative compound so that the resulting


meter readings during source surveys can be converted to reference compound results.

4. PROCEDURES

4.1 Pretest Preparations. Perform the instrument evaluation procedure given in Section4.4 if the evaluation requirement of Section 3.1.3 have not been met.

4.2 Calibration Procedures. Assemble and start up the VOC analyzer according to themanufacturer's instructions. After the appropriate warmup period and zero internalcalibration procedure, introduce the calibration gas into the instrument sample probe.Adjust the instrument meter readout to correspond to the calibration gas value. (Note: Ifthe meter readout cannot be adjusted to the proper value, a malfunction of the analyzeris indicated and corrective actions are necessary before use.)

4.3 Individual Source Surveys.

4.3.1 Type I - Leak Definition Based on Concentration. Place the probe inlet at thesurface of the component interface where leakage could occur. Move the probe along theinterface periphery while observing the instrument readout. If an increased meter readingis observed, slowly sample the interface where leakage is indicated until the maximummeter reading is obtained. Leave the probe inlet at this maximum reading location forapproximately two times the instrument response time. If the maximum observed meterreading is greater than the leak definition in the applicable regulation, record and reportthe results as specified in the regulation reporting requirements. Examples of theapplication of this general technique to specific equipment types are:

a. Valves - Leaks usually occur at the seal between the stem and the housing. Place theprobe at the interface where the stem exits the packing and sample the stemcircumference and the flange periphery. Survey valves of multipart assemblies where aleak could occur.

b. Flanges and Other Connections - Place the probe at the outer edge of the flange-gasket interface and sample the circumference of the flange.

c. Pump or Compressor Seals - If applicable, determine the type of shaft seal. Performa survey of the local area ambient VOC concentration and determine if detectableemissions exist as described above.

d. Pressure Relief Devices - For those devices equipped with an enclosed extension, orhorn, place the probe inlet at approximately the center of the exhaust area to theatmosphere.

e. Process Drains - For open drains, place the probe inlet as near as possible to the


center of the area open to the atmosphere. For covered drains, locate probe at thesurface of the cover and traverse the periphery.

f. Open-ended Lines or Valves - Place the probe inlet at approximately the center of theopening of the atmosphere.

g. Seal System Degassing Vents, Accumulator Vessel Vents, Pressure Relief Devices -If applicable, observe whether the applicable ducting or piping exists. Also, determine ifany sources exist in the ducting or piping where emissions could occur before the controldevice. If the required ducting or piping exists and there are no sources where theemissions could be vented to the atmosphere before the control device, then it ispresumed that no detectable emissions are present. If there are sources in the ducting orpiping where emissions could be vented or sources where leaks could occur, the samplingsurveys described in this section shall be used to determine if detectable emissions exist.

h. Access door seals - Place the probe inlet at the surface of the door seal interface andtraverse the periphery.

4.3.2 Type II - "No Detectable Emission". Determine the ambient concentration aroundthe source by moving the probe randomly upwind and downwind around one to two metersfrom the source. In case of interferences, this determination may be made closer to thesource down to no closer than 25 centimeters. Then move the probe to the surface of thesource and measure as in 4.3.1. The difference in these concentrations determineswhether there are no detectable emissions. When the regulation also requires that nodetectable emissions exist, visual observations and sampling surveys are required.Examples of this technique are: (a) Pump or Compressor Seals - Survey the local areaambient VOC concentration and determine if detectable emissions exist. (b) Seal SystemDegassing Vents, Accumulator Vessel Vents, Pressure Relief Devices - Determine if anyVOC sources exist upstream of the device. If such ducting exists and emissions cannotbe vented to the atmosphere upstream of the control device, then it is presumed that nodetectable emissions are present. If venting is possible sample to determine if detectableemissions are present.

4.3.3 Alternative Screening Procedure.

4.3.3.1 A screening procedure based on the formation of bubbles in a soap solution thatis sprayed on a potential leak source may be used for those sources that do not havecontinuously moving parts, that do not have surface temperatures greater than the boilingpoint or less than the freezing point of the soap solution, that do not have open areas tothe atmosphere that the soap solution cannot bridge, or that do not exhibit evidence ofliquid leakage. Sources that have these conditions present must be surveyed using theinstrument technique of Section 4.3.1 or 4.3.2.


4.3.3.2 Spray a soap solution over all potential leak sources. The soap solution may bea commercially available leak detection solution or may be prepared using concentrateddetergent and water.

A pressure sprayer or squeeze bottle may be used to dispense the solution. Observe thepotential leak sites to determine if any bubbles are formed. If no bubbles are observed,the source is presumed to have no detectable emissions or leaks as applicable. If anybubbles are observed, the instrument techniques of Section 4.3.1 or 4.3.2 shall be usedto determine if a leak exists, or if the source has detectable emissions, as applicable.

4.4 Instrument Evaluation Procedures. At the beginning of the instrument performanceevaluation test, assemble and start up the instrument according to the manufacturer'sinstructions for recommended warmup period and preliminary adjustments.

4.4.1 Response Factor.

4.4.1.1 Calibrate the instrument with the reference compound as specified in theapplicable regulation. For each organic species that is to be measured during individualsource surveys, obtain or prepare a known standard in air at a concentration ofapproximately 80 percent of the applicable leak definition unless limited by volatility orexplosivity. In these cases, prepare a standard at 90 percent of the standard saturationconcentration, or 70 percent of the lower explosive limit, respectively. Introduce thismixture to the analyzer and record the observed meter reading. Introduce zero air until astable reading is obtained. Make a total of three measurements by alternating betweenthe known mixture and zero air. Calculate the response factor for each repetition and theaverage response factor.

4.4.1.2 Alternatively, if response factors have been published for the compounds ofinterest for the instrument or detector type, the response factor determination is notrequired, and existing results may be referenced. Examples of published response factorsfor flame ionization and catalytic oxidation detectors are included in the Bibliography.

4.4.2 Calibration Precision. Make a total of three measurements by alternately usingzero gas and the specified calibration gas. Record the meter readings. Calculate theaverage algebraic difference between the meter readings and the known value. Divide thisaverage difference by the known calibration value and multiply by 100 to express theresulting calibration precision as a percentage.

4.4.3 Response Time. Introduce zero gas into the instrument sample probe. When themeter reading has stabilized, switch quickly to the specified calibration gas. Measure thetime from switching to when 90 percent of the final stable reading is attained. Perform thistest sequence three times and record the results. Calculate the average response time.


5. BIBLIOGRAPHY

1. Dubose, D.A., and G.E. Harris. Response Factors of VOC Analyzers at a MeterReading of 10,000 ppmv for Selected Organic Compounds. U.S. Environmental ProtectionAgency, Research Triangle Park, NC. Publication No. EPA 600/2-81051. September1981.

2. Brown, G.E., et al. Response Factors of VOC Analyzers Calibrated with Methane forSelected Organic Compounds. U.S. Environmental Protection Agency, Research TrianglePark, NC. Publication No. EPA 600/2-81-022. May 1981.

3. DuBose, D.A. et al. Response of Portable VOC Analyzers to Chemical Mixtures.U.S. Environmental Protection Agency, Research Triangle Park, NC. Publication No. EPA600/2-81-110. September 1981.



APPENDIX F

CHEMICAL MANUFACTURING PROCESSESSUBJECT TO HON STANDARDS

(40 CFR 63, SUBPART H)

CHEMICAL MANUFACTURING PROCESSES SUBJECT TO HON STANDARDS page F-1

TABLE 1 TO SUBPART F - SYNTHETIC ORGANIC CHEMICAL MANUFACTURING INDUSTRYCHEMICALS

Chemical Namea CAS Numberb Group

Acenaphthene 83329 V

Acetal 105577 V

Acetaldehyde 75070 II

Acetaldol 107891 II

Acetamide 60355 II

Acetanilide 103844 II

Acetic acid 64197 II

Acetic anhydride 108247 II

Acetoacetanilide 102012 III

Acetone 67641 I

Acetone cyanohydrin 75865 V

Acetonitrile 75058 I

Acetophenone 98862 I

Acrolein 107028 IV

Acrylamide 79061 I

Acrylic acid 79107 IV

Acrylonitrile 107131 I

Adiponitrile 111693 I

Alizarin 72480 V

Alkyl anthraquinones 008 V

Allyl alcohol 107186 I

Allyl chloride 107051 IV

Allyl cyanide 109751 IV

Aminophenol sulfonic acid 0010 V

Aminophenol (p-) 123308 I

Aniline 62533 I

Aniline hydrochloride 142041 III

Anisidine (o-) 90040 II

Anthracene 120127 V

Anthraquinone 84651 III

Azobenzene 103333 I



Benzaldehyde 100527 III

Benzene 71432 I

Benzenedisulfonic acid 98486 I

Benzenesulfonic acid 98113 I

Benzil 134816 III

Benzilic acid 76937 III

Benzoic acid 65850 III

Benzoin 119539 III

Benzonitrile 100470 III

Benzophenone 119619 I

Benzotrichloride 98077 III

Benzoyl chloride 98884 III

Benzyl acetate 140114 III

Benzyl alcohol 100516 III

Benzyl benzoate 120514 III

Benzyl chloride 100447 III

Benzyl dichloride 98873 III

Biphenyl 92524 I

Bisphenol A 80057 III

Bis(Chloromethyl)Ether 542881 I

Bromobenzene 108861 I

Bromoform 75252 V

Bromonaphthalene 27497514 IV

Butadiene (1,3-) 106990 II

Butanediol (1,4-) 110634 I

Butyl acrylate (n-) 141322 V

Butylene glycol (1,3-) 107880 II

Butyrolactone 96480 I

Caprolactam 105602 II

Carbaryl 63252 V

Carbazole 86748 V

Carbon disulfide 75150 IV

Carbon tetrabromide 558134 II



Carbon tetrachloride 56235 I

Carbon tetrafluoride 75730 II

Chloral 75876 II

Chloroacetic acid 79118 II

Chloroacetophenone (2-) 532274 I

Chloroaniline (p-) 106478 II

Chlorobenzene 108907 I

2-Chloro-1,3-butadiene (Chloroprene) 126998 II

Chlorodifluoroethane 25497294 V

Chlorodifluoromethane 75456 I

Chloroform 67663 I

Chloronaphthalene 25586430 IV

Chloronitrobenzene (m-) 121733 I

Chloronitrobenzene (o-) 88733 I

Chloronitrobenzene (p-) 100005 I

Chlorophenol (m-) 108430 II

Chlorophenol (o-) 95578 II

Chlorophenol (p-) 106489 II

Chlorotoluene (m-) 108418 III

Chlorotoluene (o-) 95498 III

Chlorotoluene (p-) 106434 III

Chlorotrifluoromethane 75729 II

Chrysene 218019 V

Cresol and cresylic acid (m-) 108394 III

Cresol and cresylic acid (o-) 95487 III

Cresol and cresylic acid (p-) 106445 III

Cresols and cresylic acids (mixed) 1319773 III

Cumene 98828 I

Cumene hydroperoxide 80159 I

Cyanoacetic acid 372098 II

Cyclohexane 110827 I

Cyclohexanol 108930 I

Cyclohexanone 108941 I



Cyclohexylamine 108918 III

Cyclooctadienes 29965977 II

Decahydronaphthalene 91178 IV

Diacetoxy-2-Butene (1,4-) 0012 V

Diaminophenol hydrochloride 137097 V

Dibromomethane 74953 V

Dichloroaniline (mixed isomers) 27134276 I

Dichlorobenzene (p-) 106467 I

Dichlorobenzene (m-) 541731 I

Dichlorobenzene (o-) 95501 I

Dichlorobenzidine (3,3'-) 91941 I

Dichlorodifluoromethane 75718 I

Dichloroethane (1,2-) (Ethylene dichloride) (EDC) 107062 I

Dichloroethyl ether (bis(2-chloroethyl)ether) 111444 I

Dichloroethylene (1,2-) 540590 II

Dichlorophenol (2,4-) 120832 III

Dichloropropene (1,3-) 542756 II

Dichlorotetrafluoroethane 1320372 V

Dichloro-1-butene (3,4-) 760236 II

Dichloro-2-butene (1,4-) 764410 V

Diethanolamine (2,2'-Iminodiethanol) 111422 I

Diethyl sulfate 64675 II

Diethylamine 109897 IV

Diethylaniline (2,6-) 579668 V

Diethylene glycol 111466 I

Diethylene glycol dibutyl ether 112732 I

Diethylene glycol diethyl ether 112367 I

Diethylene glycol dimethyl ether 111966 I

Diethylene glycol monobutyl ether acetate 124174 I

Diethylene glycol monobutyl ether 112345 I

Diethylene glycol monoethyl ether acetate 112152 I

Diethylene glycol monoethyl ether 111900 I

Diethylene glycol monohexyl ether 112594 V



Diethylene glycol monomethyl ether acetate 629389 V

Diethylene glycol monomethyl ether 111773 I

Dihydroxybenzoic acid (Resorcylic acid) 27138574 V

Dimethylbenzidine (3,3'-) 119937 II

Dimethyl ether 115106 IV

Dimethylformamide (N,N-) 68122 II

Dimethylhydrazine (1,1-) 57147 II

Dimethyl sulfate 77781 I

Dimethyl terephthalate 120616 II

Dimethylamine 124403 IV

Dimethylaminoethanol (2-) 108010 I

Dimethylaniline (N,NN) 121697 III

Dinitrobenzenes (NOS)c 25154545 I

Dinitrophenol (2,4-) 51285 III

Dinitrotoluene (2,4-) 121142 III

Dioxane (1,4-) (1,4-Diethyleneoxide) 123911 I

Dioxolane (1,3-) 646060 I

Diphenyl methane 101815 I

Diphenyl oxide 101848 I

Diphenyl thiourea 102089 III

Diphenylamine 122394 III

Dipropylene glycol 110985 I

Di-o-tolyguanidine 97392 III

Dodecanedioic acid 693232 I

Dodecyl benzene (branched) 123013 V

Dodecyl phenol (branched) 121158585 V

Dodecylaniline 28675174 V

Dodecylbenzene (n-) 121013 I

Dodecylphenol 27193868 III

Epichlorohydrin (1-chloro-2,3-epoxypropane) 106898 I

Ethanolamine 141435 I

Ethyl acrylate 140885 II

Ethylbenzene 100414 I



Ethyl chloride (Chloroethane) 75003 IV

Ethyl chloroacetate 105395 II

Ethylamine 75047 V

Ethylaniline (N-) 103695 III

Ethylaniline (o-) 578541 III

Ethylcellulose 9004573 V

Ethylcyanoacetate 105566 V

Ethylene carbonate 96491 I

Ethylene dibromide (Dibromoethane) 106934 I

Ethylene glycol 107211 I

Ethylene glycol diacetate 111557 I

Ethylene glycol dibutyl ether 112481 V

Ethylene glycol diethyl ether (1,2-diethoxyethane) 629141 I

Ethylene glycol dimethyl ether 110714 I

Ethylene glycol monoacetate 542596 V

Ethylene glycol monobutyl ether acetate 112072 I

Ethylene glycol monobutyl ether 111762 I

Ethylene glycol monoethyl ether acetate 111159 I

Ethylene glycol monoethyl ether 110805 I

Ethylene glycol monohexyl ether 112254 V

Ethylene glycol monomethyl ether acetate 110496 I

Ethylene glycol monomethyl ether 109864 I

Ethylene glycol monooctyl ether 002 V

Ethylene glycol monophenyl ether 122996 I

Ethylene glycol monopropyl ether 2807309 I

Ethylene oxide 75218 I

Ethylenediamine 107153 II

Ethylenediamine tetraacetic acid 60004 V

Ethylenimine (Aziridine) 151564 II

Ethylhexyl acrylate (2-isomer) 103117 II

Fluoranthene 206440 V

Formaldehyde 50000 I

Formamide 75127 II



Formic acid 64186 II

Fumaric acid 110178 I

Glutaraldehyde 111308 IV

Glyceraldehyde 367475 V

Glycerol 56815 II

Glycine 56406 II

Glyoxal 107222 II

Hexachlorobenzene 118741 II

Hexachlorobutadiene 87683 II

Hexachloroethane 67721 II

Hexadiene (1,4-) 592450 II

Hexamethylenetetramine 100970 I

Hexane 110543 V

Hexanetriol (1,2,6-) 106694 IV

Hydroquinone 123319 I

Hydroxyadipaldehyde 141311 V

Isobutyl acrylate 106638 V

Isobutylene 115117 V

Isophorone 78591 IV

Isophorone nitrile 0017 V

Isophthalic acid 121915 III

Isopropylphenol 25168063 III

Linear alkylbenzene ---d I

Maleic anhydride 108316 I

Maleic hydrazide 123331 I

Malic acid 6915157 I

Metanilic acid 121471 I

Methacrylic acid 79414 V

Methanol 67561 IV

Methionine 63683 I

Methyl acetate 79209 IV

Methyl acrylate 96333 V



Methyl bromide (Bromomethane) 74839 IV

Methyl chloride (Chloromethane) 74873 IV

Methyl ethyl ketone (2-butanone) 78933 V

Methyl formate 107313 II

Methyl hydrazine 60344 IV

Methyl isobutyl carbinol 108112 IV

Methyl isobutyl ketone (Hexone) 108101 IV

Methyl isocyanate 624839 IV

Methyl mercaptan 74931 IV

Methyl methacrylate 80626 IV

Methyl phenyl carbinol 98851 II

Methyl tert-butyl ether 1634044 V

Methylamine 74895 IV

Methylaniline (N-) 100618 III

Methylcyclohexane 108872 III

Methylcyclohexanol 25639423 V

Methylcyclohexanone 1331222 III

Methylene chloride (Dichloromethane) 75092 I

Methylene dianiline (4,4'-isomer) 101779 I

Methylene diphenyl diisocyanate (4,4'-) (MDI) 101688 III

Methylionones (a-) 79696 V

Methylpentynol 77758 V

Methylstyrene (a-) 98839 I

Naphthalene 91203 IV

Naphthalene sulfonic acid (a-) 85472 IV

Naphthalene sulfonic acid (b-) 120183 IV

Naphthol (a-) 90153 IV

Naphthol (b-) 135193 IV

Naphtholsulfonic acid (1-) 567180 V

Naphthylamine sulfonic acid (1,4-) 84866 V

Naphthylamine sulfonic acid (2,1-) 81163 V

Naphthylamine (1-) 134327 V

Naphthylamine (2-) 91598 V



Nitroaniline (m-) 99092 II

Nitroaniline (o-) 88744 I

Nitroanisole (o-) 91236 III

Nitroanisole (p-) 100174 III

Nitrobenzene 98953 I

Nitronaphthalene (1-) 86577 IV

Nitrophenol (p-) 100027 III

Nitrophenol (o-) 88755 III

Nitropropane (2-) 79469 II

Nitrotoluene (all isomers) 1321126 III

Nitrotoluene (o-) 88722 III

Nitrotoluene (m-) 99081 III

Nitrotoluene (p-) 99990 III

Nitroxylene 25168041 V

Nonylbenzene (branched) 1081772 V

Nonylphenol 25154523 V

Octene-1 111660 I

Octylphenol 27193288 III

Paraformaldehyde 30525894 I

Paraldehyde 123637 II

Pentachlorophenol 87865 III

Pentaerythritol 115775 I

Peracetic acid 79210 II

Perchloromethyl mercaptan 594423 IV

Phenanthrene 85018 V

Phenetidine (p-) 156434 III

Phenol 108952 III

Phenolphthalein 77098 III

Phenolsulfonic acids (all isomers) 1333397 III

Phenyl anthranilic acid (all isomers) 91407 III

Phenylenediamine (p-) 106503 I

Phloroglucinol 108736 III

Phosgene 75445 IV



Phthalic acid 88993 III

Phthalic anhydride 85449 III

Phthalimide 85416 III

Phthalonitrile 91156 III

Picoline (b-) 108996 II

Piperazine 110850 I

Propiolactone (beta-) 57578 I

Propionaldehyde 123386 IV

Propionic acid 79094 I

Propylene carbonate 108327 V

Propylene dichloride (1,2-dichloropropane) 78875 IV

Propylene glycol 57556 I

Propylene glycol monomethyl ether 107982 I

Propylene oxide 75569 I

Pyrene 129000 V

Pyridine 110861 II

p-tert-Butyl toluene 98511 III

Quinone 106514 III

Resorcinol 108463 I

Salicylic acid 69727 III

Sodium methoxide 124414 IV

Sodium phenate 139026 III

Stilbene 588590 III

Styrene 100425 I

Succinic acid 110156 I

Succinonitrile 110612 I

Sulfanilic acid 121573 III

Sulfolane 126330 II

Tartaric acid 526830 I

Terephthalic acid 100210 II

Tetrabromophthalic anhydride 632791 III



Tetrachlorobenzene (1,2,4,5-) 95943 I

Tetrachloroethane (1,1,2,2-) 79345 II

Tetrachloroethylene (Perchloroethylene) 127184 I

Tetrachlorophthalic anhydride 117088 III

Tetraethyl lead 78002 IV

Tetraethylene glycol 112607 I

Tetraethylenepentamine 112572 V

Tetrahydrofuran 109999 I

Tetrahydronapthalene 119642 IV

Tetrahydrophthalic anhydride 85438 II

Tetramethylenediamine 110601 II

Tetramethylethylenediamine 110189 V

Tetramethyllead 75741 V

Toluene 108883 I

Toluene 2,4 diamine 95807 II

Toluene 2,4 diisocyanate 584849 II

Toluene diisocyanates (mixture) 26471625 II

Toluene sulfonic acids 104154 III

Toluenesulfonyl chloride 98599 III

Toluidine (o-) 95534 II

Trichloroaniline (2,4,6-) 634935 III

Trichlorobenzene (1,2,3-) 87616 V

Trichlorobenzene (1,2,4-) 120821 I

Trichloroethane (1,1,1-) 71556 II

Trichloroethane (1,1,2-) (Vinyl trichloride) 79005 II

Trichloroethylene 79016 I

Trichlorofluoromethane 75694 I

Trichlorophenol (2,4,5-) 95954 I

(1,1,2-) Trichloro (1,2,2-) trifluoroethane 76131 I

Triethanolamine 102716 I

Triethylamine 121448 IV

Triethylene glycol 112276 I

Triethylene glycol dimethyl ether 112492 I



Triethylene glycol monoethyl ether 112505 V

Triethylene glycol monomethyl ether 112356 I

Trimethylamine 75503 IV

Trimethylcyclohexanol 933482 IV

Trimethylcyclohexanone 2408379 IV

Trimethylcyclohexylamine 34216347 V

Trimethylolpropane 77996 I

Trimethylpentane (2,2,4-) 540841 V

Tripropylene glycol 24800440 V

Vinyl acetate 108054 II

Vinyl chloride (Chloroethylene) 75014 I

Vinyl toluene 25013154 III

Vinylcyclohexene (4-) 100403 II

Vinylidene chloride (1,1-dichloroethylene) 75354 II

Vinyl(N-)-pyrrolidone(2-) 88120 V

Xanthates 140896 V

Xylene sulfonic acid 25321419 III

Xylenes (NOS)c 1330207 I

Xylene (m-) 108383 I

Xylene (o-) 95476 I

Xylene (p-) 106423 I

Xylenols (Mixed) 1300716 V

Xylidene 1300738 III

aIsomer means all structural arrangements for the same number of atoms of each element and does not mean salts, esters, or derivatives.

bCAS Number = Chemical Abstract Service number.

cNOS = not otherwise specified.

dNo CAS number assigned.



APPENDIX G

ORGANIC HAP SUBJECT TO HON STANDARDS (SUBPART H)

ORGANIC HAP SUBJECT TO HON STANDARDS page G-1

TABLE 2 TO SUBPART F - ORGANIC HAZARDOUS AIR POLLUTANTS

Chemical Namea,b CAS Numberc

Acenaphthene 83329

Acetaldehyde 75070

Acetamide 60355

Acetonitrile 75058

Acetophenone 98862

Acrolein 107028

Acrylamide 79061

Acrylic acid 79107

Acrylonitrile 107131

Alizarin 72480

Allyl chloride 107051

Aniline 62533

Anisidine (o-) 90040

Anthracene 120127

Anthraquinone 84651

Benzene 71432

Benzotrichloride 98077

Benzyl chloride 100447

Biphenyl 92524

Bis(chloromethyl)ether 542881

Bromoform 75252

Bromonaphthalene 27497514

Butadiene (1,3-) 106990

Carbon disulfide 75150

Carbon tetrachloride 56235

Chloroacetic acid 79118

Chloroacetophenone (2-) 532274

Chlorobenzene 108907

2-Chloro-,1,3-butadiene (Chloroprene) 126998



Chloroform 67663

Chloronaphthalene 25586430

Chrysene 218019

Cresols and cresylic acids (mixed) 1319773

Cresol and cresylic acid (o-) 95487

Cresol and cresylic acid (m-) 108394

Cresol and cresylic acid (p-) 106445

Cumene 98828

Dichlorobenzene (p-) 106467

Dichlorobenzidine (3,3'-) 91941

Dichloroethane (1,2-) (Ethylene dichloride) (EDC)

107062

Dichloroethylether (Bis(2-chloroethyl)ether) 111444

Dichloropropene (1,3-) 542756

Diethanolamine (2,2'-Iminodiethanol) 111422

Dimethylaniline (N,N-) 121697

Diethyl sulfate 64675

Dimethylbenzidine (3,3'-) 119937

Dimethylformamide (N,N-) 68122

Dimethylhydrazine (1,1-) 58147

Dimethylphthalate 131113

Dimethylsulfate 77781

Dinitrophenol (2,4-) 51285

Dinitrotoluene (2,4-) 121142

Dioxane (1,4-) (1,4-Diethyleneoxide) 123911

1,2-Diphenylhydrazine 122667

Epichlorohydrin (1-Chloro-2,3-epoxypropane) 106898

Ethyl acrylate 140885

Ethylbenzene 100414

Ethyl chloride (Chloroethane) 75003

Ethylene dibromide (Dibromoethane) 106934

Ethylene glycol 107211



Ethylene oxide 75218

Ethylidene dichloride (1,1-Dichloroethane) 75343

Fluoranthene 206440

Formaldehyde 50000

Glycol ethersd

Hexachlorobenzene 118741

Hexachlorobutadiene 87683

Hexachloroethane 67721

Hexane 110543

Hydroquinone 123319

Isophorone 78591

Maleic anhydride 108316

Methanol 67561

Methylbromide (Bromomethane) 74839

Methylchloride (Chloromethane) 74873

Methyl ethyl ketone (2-Butanone) 78933

Methyl hydrazine 60344

Methyl isobutyl ketone (Hexone) 108101

Methyl isocyanate 624839

Methyl methacrylate 80626

Methyl tert-butyl ether 1634044

Methylene chloride (Dichloromethane) 75092

Methylene diphenyl diisocyanate (4,4'-) (MDI) 101688

Methylenedianiline (4,4'-) 101779

Naphthalene 91203

Naphthalene sulfonic acid (a) 85472

Naphthalene sulfonic acid (ß) 120183

Naphthol (a) 90153

Naphthol (ß) 135193

Naphtholsulfonic acid (1-) 567180

Naphthylamine sulfonic acid (1,4-) 84866

Naphthylamine sulfonic acid (2,1-) 81163



Naphthylamine (1-) 134327

Naphthylamine (2-) 91598

Nitronaphthalene (1-) 86577

Nitrobenzene 98953

Nitrophenol (p-) 100027

Nitropropane (2-) 79469

Phenanthrene 85018

Phenol 108952

Phenylenediamine (p-) 106503

Phosgene 75445

Phthalic anhydride 85449

Propiolactone (beta-) 57578

Propionaldehyde 123386

Propylene dichloride (1,2-Dichloropropane) 78875

Propylene oxide 75569

Pyrene 129000

Quinone 106514

Styrene 100425

Tetrachloroethane (1,1,2,2-) 79345

Tetrachloroethylene (Perchloroethylene) 127184

Tetrahydronaphthalene 119642

Toluene 108883

Toluene diamine (2,4-) 95807

Toluene diisocyanate (2,4-) 584849

Toluidine (o-) 95534

Trichlorobenzene (1,2,4-) 120821

Trichloroethane (1,1,1-) (Methyl chloroform) 71556

Trichloroethane (1,1,2-) (Vinyl trichloride) 79005

Trichloroethylene 79016

Trichlorophenol (2,4,5-) 95954

Triethylamine 121448

Trimethylpentane (2,2,4-) 540841



Vinyl acetate 108054

Vinyl chloride (Chloroethylene) 75014

Vinylidene chloride (1,1-Dichloroethylene) 75354

Xylenes (NOS) 1330207

Xylene (m-) 108383

Xylene (o-) 95476

Xylene (p-) 106423

a For all Listings above containing the word "Compounds," the following applies: Unless otherwisespecified, these listings are defined as including any unique chemical substance that contains the namedchemical (i.e., antimony, arsenic) as part of that chemical's infrastructure.

bIsomer means all structural arrangements for the same number of atoms of each element and does notmean salts, esters, or derivatives.

cCAS Number = Chemical Abstract Service number.

dIncludes mono- and di- ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCH2CH2)n-OR'

where

n = 1, 2, or 3;

R = alkyl or aryl groups; and

R'= R, H, or groups which, when removed, yield glycol ethers with the structure: R-(OCH2CH2)n-OH

Polymers are excluded from the glycol category.



APPENDIX H

MANUFACTURING PROCESSES AND ORGANIC HAP

SUBJECT TO HON STANDARDS (SUBPART I)

MANUFACTURING PROCESSES AND ORGANIC HAP SUBJECT TO HON STANDARDS (SUBPART I) page H-1

MANUFACTURING PROCESSES AND ORGANIC HAP SUBJECT TO HONSTANDARDS (SUBPART I)

Production Process(es) Regulated Emissions

Styrene-butadiene rubber production Butadiene and styrene

Polybutadiene rubber production Butadiene

The processes producing the agricultural chemicals:

Captafol™

Captan™

Chlorothalonil

Dacthal

Tordon™ acid

Butadiene, carbon tetrachloride,methylene chloride, and ethylenedichloride

Processes producing the polymers/resins or otherchemical products:

Hypalon™

Oxybisphenoxarsine/

1,3-diisocyanate (OBPA™ )

Polycarbonates

Polysulfide rubber

Chlorinated paraffins

Symmetrical tetrachloropyridine

Carbon tetrachloride, methylenechloride, tetrachloroethylene,chloroform, and ethylenedichloride

Pharmaceutical production processes using carbontetrachloride or methylene chloride

Carbon tetrachloride andmethylene chloride

Production Process(es) Regulated Emissions

MANUFACTURING PROCESSES AND ORGANIC HAP SUBJECT TO HON STANDARDS (SUBPART I) page H-2

Processes producing the polymers/resins or otherchemical products:

Methylmethacrylate-butadiene-

styrene resins (MBS)

Butadiene-furfural cotrimer

Methylmethacrylate-acrylonitrile-

butadiene-styrene (MABS) resins

Ethylidene norbornene

Butadiene

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