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transcript
8/13/2019 2012 Cupa Ust Closure Presentation Revised
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UNDERGROUNDSTORAGE
TANKCLOSURE
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Presented by :
Brenda ten BruggencateSanta Fe Springs Fire-Rescue
David NorenEBA Group
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INSPECTORS
PERSPECTIVE
Permits Inspections
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OTHER TOPICS
open excavationsclean certifications
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TYPES OF UST CLOSURES
Permanent removal
Permanent-in-place
Temporary
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CLOSURE VS. REMOVAL
careful with the termlosure when
rem ov l is meant
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2010 CFC
105.7.7 - permitrequired to remove,
close, or place an USTinto temporary closure
PERMIT REQUIRED
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UST CLOSUREREQUIREMENTS
23 CCR Art. 7 2670(e) apply for UST closure to LIA within 90 days
once hazardous substance storage has stopped
AND
Submit closure proposal 30 days priorto closure or shorter
Check with LIAMost want one submittal
Process varies
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H SC 25298 - general
23 CCR Art. 723 CCR 2670 - general to all UST closures23 CCR 2671 - temporary closures23 CCR 2672 (b) - removal23 CCR 2672 (c) - closure-in-place23 CCR 2672 (d) - sampling requirements
2010 CFC 3404.2.13 - temporary & closure-in-place 3404.2.14 removal
Ordinance
UST CLOSUREREQUIREMENTS TYPES
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WHAT DOES AN INSPECTORLOOK FOR ON A PERMIT?
Tracking of UST and RP
Application that demonstrate compliance withthe law, regs, codes, standards etc.
Names & addressesState UST ID#Contents, size, install date etc.State UST Operating Permit Application - Facilityand Tank Information forms contain a lot of this info
Safe removal or closure (inerting UST)Liquids, sludge, and residuals managed legallySampling to demonstrate if release occurred or not
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WHAT DOES AN INSPECTORLOOK FOR ON A PERMIT?
Agency specific
Can be written narrativeLevel of detail varies
May be done on prescriptive formsSome LIAs attach standard conditionsExample: SFS Closure Permit
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Most fieldson this form
are requiredby title 22
Attach Forms A & B
location
Type &proceduresfor closure
description
contractor
certification
RP
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PERMANENTUST CLOSURE
REQUIREMENTSLG 48-5, Contractor Licensing
A ( all)
B ( construct building)C-36 ( service stations)C-61/D-40 ( < 20K capacity)
andHazardous SubstanceCertification issued by CSLB
B&P 7058.7
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UST CLOSURE
Permit approved now what?
Complete closure within a reasonable amountof time as determined by LIA - 23 CCR 2670(e)
Be aware of Ordinance timelinesSFS 6 months, with possible 6 monthextension
CFC1 year for permanent closures90 days to safe guard temp closures
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TO INSPECT FOR?
PermanentClosure removal
Principalsapply to otherclosure type
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CFC 106.2
Fire Code Official is authorized to conductinspections to determine compliance with thiscode
Permanent closure by removalTank inert and remove contents, tank, & pipe
TO INSPECT FOR?
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H SC 25298 23 CCR Art. 7
UST owner/operator shalldemonstrate/document to the Local
Agency
No unauthorized release has occurred, collectsamplesProper disposal (i.e. tank destruction cert)or reuse info
TO INSPECT FOR?
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UPON ARRIVAL
Assess logisticsTraffic hazards
Access in and outHow many people are in removalarea?
Overhead hazards - electricalTank path from pit to truckPlan ahead
Use common sense
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UPON ARRIVAL
Find out whos who SupervisorLooky-loosGeologistclean certifier Who is the SiteSafety Officer?
Report safety
concerns to SSO
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UPON ARRIVAL
Ask where they are in the removal processWhen does your agency require the inspector
to be present?For excavation?For cold cutting?For cleaning?During the clean certification?During removal?During sample collection?
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UPON ARRIVAL
Verify info submitted on permit
What info is different than site conditions
Has the contractor or subs changed?
Where are they taking the UST?confirm with driver
Where are they taking rinseate?Manifest # or copy
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UPON ARRIVAL
Ask the contractor their plan and logistics
Is it consistent with the approved permit?
Does it appear reasonable?
Assess and record differences
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UPON ARRIVAL
Look around the site
Size of crane appropriate?
Condition of lifting cablesor straps
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Look around the site (cont.) Are the excavation walls stable or loose?
Where are people standing?
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TALK TO GEOLOGIST
Do they know the sampling plan?
Do they have the right sampling equipment?No glass jars for VOCsEPA Method 5035Ice in their chest?
Ask early - may to allow time to acquirethese things should they not have them
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NOW WHAT?
At this point SFSFR arrives on site towitness the clean certification
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Residual liquids, sludges, or solids SHALL beremoved from tank and piping and handledhazardous wastes or recyclable materials
Inert possible flammables vapor at STP to levelsthat preclude explosion
22 CCR requires Hazardous Waste Tank ClosureCertification
clean UST or comply with all applicable HWrequirements
PRE-REMOVALREQUIREMENTS
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API 2015
Thisstandarddoes notapply toUSTs
Many safetankcleaning
principalsareapplicable
Also see API2016
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WHAT IS ACLEAN CERTIFICATION
API Publication 2015Intro says this standard does not apply to USTsSafe cleaning principals applyRefers to API 2016Vapors and degassing
Removing sludge and residuesTank cleaningControl of ignition sources
Atmospheric monitors
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WHAT IS ACLEAN CERTIFICATION
NFPA 326 Atmospheric Testing
Combustible gas indicator reading can be incorrect if taken inoxygen deficient environmentCheck instrument specs
Cleaning Methods
Triple rinse (low pressure water)High pressure steamPhysical removal (vacuuming, shovel, absorbing)
Qualifications of person certifying tank atmosphere
All work stops if >10% LEL
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WHAT IS ACLEAN CERTIFICATION
API Publication 1604
Recommended Practice for the Closure ofPetroleum USTs
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WEB ADDRESSES FORCLEANING PROCEDURES
API Publication 2015http://publications.api.org/ Register or log in for freeUnder Read -Only Documents select Fire andSafety Protection
Not all API Publications are accessible withoutan account
API 1604 is not free
http://publications.api.org/http://publications.api.org/8/13/2019 2012 Cupa Ust Closure Presentation Revised
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WEB ADDRESSES FORCLEANING PROCEDURES
NFPA 326, 1999 edition
Formerly NFPA 327, 1993 edition
www.nfpacodesonline.org
Need a subscription
http://www.nfpacodesonline.org/http://www.nfpacodesonline.org/8/13/2019 2012 Cupa Ust Closure Presentation Revised
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If tank is clean (non-haz)
submit the Hazardous Waste Tank ClosureCertification
Piping and appurtenances must be clean so nopourable contents come out when inverted
UST must be free of product, sludge, debris etc.
UST must be visually inspected
NEXT STEPTANK CLEANING
NON HAZARDOUS
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NON-HAZARDOUSREMOVAL
Visually inspectThrough manway orCut opening on siteUse non-sparking tools, cold cutting techniques
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NON HAZARDOUS
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If a cleaned tank is NOT cut and haspotential to generate flammable vapor
Visually inspect byUse Class I, Div. 1 light with mirror to see inside tan
Other method approved by CUPA
Inert with CO 2 or other inert gasDry ice
NON-HAZARDOUSREMOVAL
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50 lb bl k i t l 12" 12" 12"
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50 lb. blocks are approximately 12" x 12" x 12"
10 lb 50 lb
10K UST requires 220 lbs dry ice= 4.4 50 lbs blocks of dry iceSublimates at a rate of 5 to 10 pounds every 24hours when stored in a typical cooler
Much faster on hot days in metal UST
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DRY ICE
Allow sublimation to generate CO 2
Use CGI to measure LEL top, center,bottom
Careful! Whats the oxygen conc.?
Plug all hole except 1/8 vent
NON HAZARDOUS
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NON-HAZARDOUSREMOVAL
Use Hazardous Waste Tank ClosureCertification or acceptable alternativecontaining specific information
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Required by 2267383.3 (g)
Certify free of product,sludge, etc.
Atmosphere at top,center, bottom
Qualifications of certifier
Date, time, signature
Cert good only at time ofmonitoring
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UST
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USTREMOVAL
Ensure clear path frompit to truck
Remove loose dirt
Transport off-site
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UST REMOVAL
Document to LIA disposition of UST
If disposedDocumentation i.e. tank destruction cert
If destined for reuseCheck with LIA for local requirements
Document to LIA within their requiredtime frame
Name of new owner and new operator of USTLocation of intended use
Nature of intended use
SOIL SAMPLING
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SOIL SAMPLINGREQUIREMENTS
Must demonstrate no unauthorized release hasoccurred
Must be performed during or immediately after USTclosure activities
Based on soil and (if present in excavation) water
analysis and consistent with approved work plan
Analyze by State-Certified lab for previously storedsubstance(s) and breakdown products or transformationproducts.
SOIL SAMPLING
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SOIL SAMPLINGREQUIREMENTS
Geological logs shall be prepared bya Professional Geologist or Civil
Engineer
technician working under the directsupervision of one can do this
provided the professional reviewsthe logs and assumes responsibilityfor them. 23 CCR 2649 (b)(1)(D)
SOIL SAMPLING
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SOIL SAMPLINGREQUIREMENTS
Removal
Minimum 2 below the UST bottom in native soil ateach end of tank
Every 20 linear feet of piping
May include vent and vapor for VPH systems based onchange in piping definitionThis includes sampling under the dispenser
Stockpile sampling (not specified in 23 CCR 2672)
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2670(f)
Bus. Prof.
Code 7835
2672(b)(2)(c)(2)
2672(b)(3)(4)
2649(f)(6)HSC
25298.5
2672(c)(1)
Bus. Prof.Code 7835
2649(f)(5) (g)
2649(f)(5) (g)HSC 25298.5
2649(f)(5) (g)
2670(f)
SFSFRrequirement
Needed to de-termine if furtheraction is needed
Professional
Professional
piping & dispensers
PERMANENT UST CLOSURE
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2 TYPES
Closure-in-place23 CCR 2672(c)
Removal23 CCR 2672(b)
UST
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USTCLOSURE-IN-PLACE
What justifies leaving UST in place?
Check with Building Dept. & LIA policy
City of SFS requires UST be within a 45
angle of footing of permanent structure
Consider requiring Engineering Report if not
obvious
UST
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USTCLOSURE-IN-PLACE
Closure-in-place allowed for UST 2
UST 2
BUILDING
UST 1
45
UST
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Process similar to removal
Clean tank
Legally manage waste
Sampling borings required
Fill with inert solidexception
USTCLOSURE-IN-PLACE
UST
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USTCLOSURE-IN-PLACE
Exception: if owner intends to reuse tank forstorage of a non-haz substance
Non-haz substance must be compatible withprevious UST use and construction
Check with LIA and Fire Departments on theirrequirements
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UST CLOSURE-IN-PLACE
Filling with inert solid
Provide proper openings to filling tank withinert material
Use concrete slurry, sand, flowable ash, orfoaming agentEnsure UST buoyancy is offset
UST PIPING
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UST PIPINGCLOSURE-IN-PLACE
Remove all piping unless it willdamage structures or other pipes
Piping to remaining in place must beemptied of contents and capped
Piping does not have to be filled with an inertsolid, only the UST does
Remove ventBackfill
SOIL SAMPLING
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SOIL SAMPLINGREQUIREMENTS
Closure-in-place
One or more slant boring as close as possible to themidpoint of the UST OR
Vertical borings drilled along each long dimensionalside of UST OR
Other method as approved by LIACheck approve permit/workplan
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TEMPORARY
USTCLOSURE
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TEMPORARY
UST CLOSURE
23 CCR 2010 CFC
When storage of HS has ceasedbut the UST will be used again
within 12 months
When UST is taken out of service
Submit proposal 30 days prior toclosure
Safeguard within 90 days
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TEMPORARY
UST CLOSURE23 CCR 2010 CFCRemove liquid and properly manage it same
Cap and secure pipe, fill line, gauge openings,vapor recovery
same
maintain vents same
Disconnect power to pumps but not cathodicprotection system
Inert to levels that preclude explosions OR lower ifrequired by LIA
UST may be filled with a non-corrosive liquid thatis not a hazardous substance
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TEMPORARY
UST CLOSURE23 CCR 2010 CFCRemove liquid and properly manage it same
Cap and secure pipe, fill line, gauge openings,vapor recovery
same
maintain vents same
Disconnect power to pumps but not cathodicprotection system
Inert to levels that preclude explosions OR lower ifrequired by LIA
UST may be filled with a non-corrosive liquid thatis not a hazardous substance
TO FILL OR NOT TO FILL?
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TO FILL OR NOT TO FILL?
Decidingfactors
High
groundwater?Intent andtime frame forreuse?
Consideramount ofwastegenerated
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TEMPORARY UST
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TEMPORARY USTCLOSURE
f filled
Non corrosive liquid
Not a hazardous substance
Test liquid and submit results to LIA priorto removing it from UST at end of tempclosure period
UST TEMPORARY
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CLOSURE
Monitoringrequirements
Can be modifiedby LIA based onneed to detectunauthorizedrelease
Cathodicprotection mustbe maintained
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UST TEMPORARY
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CLOSURE
Continue compliance with the followingrequirements:
Repair and record keeping
Release reporting and investigations
Release response and corrective actions
TEMPORARY
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UST CLOSURE
Options at end of permit term
23 CCR 2010 CFC
12 month extension may begranted if site assessmentperformed
Removal from ground within oneyear for USTs out of service
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