2019-2020 New York City Water Conservation andReuse Grant Pilot Program Guide

Bill de BlasioMayorVincent Sapienza, P.E.Commissioner

July 2019

For More Information:

Website: nyc.gov/dep/water-conservation-grant

Email: waterconservation@dep.nyc.gov

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1. IntroductiontotheWaterConservationandReuseGrantPilotProgram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

ProgramOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

SpecialDesignandConstructionConsiderations . . . . . . . . . . . . . . . . . 5

2. StepsforReceivingaGrant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

ApplyingtotheProgram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ProjectConstructionandReimbursementofCosts . . . . . . . 11

ProjectCloseoutandMaintenanceRequirements . . . . . . . . 12

3. SpecialDesignandConstructionConsiderations . . . . . . . . . . 13

NewYorkCityCoolingTowerRegulations . . . . . . . . . . . . . . . . . . . . . . 13

On-siteWaterReuseSystems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

ApplicationForm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

In This Guide

1

Introduction to the Water Conservation and Reuse Grant Pilot Program

BackgroundThrough a complex arrangement of dams, reservoirs, tunnels, and aqueducts, the New York City water supply system serves 8.5 million New York City residents, millions of commuters from the tri-state area, and more than one million residents in 55 upstate communities each day. DEP’s ongoing sustainability strategy is to optimize the existing system while promoting water conservation and managing a decrease in demand. More needs to be done, however, particularly to ensure adequate supply for a growing population and to promote resiliency to drought and infrastructure impairment.

Since releasing the Water Demand Management Plan, DEP has made significant progress toward accomplishing this goal by piloting and implementing integrated water efficiency projects that help both decrease drinking water demand and reduce the amount of sewage entering New York City’s sewer and wastewater systems. These water efficiency improvements also help achieve energy and greenhouse gas reduction goals.

DEP is expanding its grant program to reimburse water efficiency projects on private property that consider all opportunities for water conservation. The potential benefits of incentivizing water conservation and reuse include: deferred capital costs of large-scale water, wastewater, and stormwater infrastructure; eligibility for DEP’s Comprehensive Water Reuse Program long-term water and wastewater fee discounts; reduced loadings to sewers and waterbodies; improved environmental stewardship; and increased capability to manage water supply system demand.

Grants are available to DEP customers with accounts in good standing. Multiple properties with the same property owner may be grouped under a single grant application provided that a total of 1 million gallons per year (mgy) of potable water can be conserved. Reimbursement of equipment costs will be calculated two ways: a fixed maximum unit price for conventional WaterSense® certified fixture replacements, and for more innovative, custom water efficiency retrofits, funding is set at $10 per gallon per day (gpd) water savings achieved up to 100% of documented equipment costs. Proposed projects may include a combination of conventional and custom water efficiency retrofits to maximize water savings. Costs for third-party Facility Water Use Surveys and Design Services are reimbursable under the grant program, up to 20% of equipment costs.

PurposeThisguideisforpropertyownersandbuildingmanagerstonavigateNewYorkCity’sWaterConservationandReuseGrantPilotProgram.Thegoalofthegrantprogramistoreimbursewaterefficiencyprojectsonprivatepropertythatconsiderallopportunitiesforwaterconservationwithinthebuilding,forthepurposesofconservingpotablewaterandreducingflowstothesewersystemandwastewaterfacilities.Propertyownersormanagersinterestedinparticipatinginthegrantprogramshouldcarefullyreadthroughthisguide.

1

2

Introduc�tion to the Water Conserva�tion and Reuse Grant Pilot Program

Program Overview The Water Conservation and Reuse Grant Pilot Program allows multiple property types and water efficiency retrofits to be incorporated under the same grant application on the condition that the project can save a minimum of 1 million gallons per year. The following sections provide examples of eligible water efficiency retrofits, but applicants are also encouraged to propose their own water efficiency retrofits.

Water Conservation Retrofits In existing buildings, retrofits or replacement of existing fixtures and equipment is the most common method for improving water efficiency. Some examples of retrofit or replacement improvements eligible under the grant program include:

Existing Domestic Equipment

ExistingEquipment

Recommendation

Retrofit With Replace With

Toilets High-efficiency WaterSense®-labeled models (1.28 gallons per flush or less)

Urinals High-efficiency WaterSense®-labeled models (0.5 gallons per flush or less)

Bathroom Faucets Aerators or laminar flow devices (0.5 gallons per minute)

High-efficiency WaterSense®-labeled models (1.5 gallons per minute or less)

Showerheads High-efficiency WaterSense®-labeled models (2.0 gallons per minute or less)

Residential washing Machines

ENERGY STAR®-labeled washing machines

Dry Vacuum Pumps Full or partial recovery and recirculation systems Air-cooled dry vacuum pumps

3

Introduc�tion to the Water Conservation and Reuse Grant Pilot Program

Existing Commercial Equipment

ExistingEquipment

Recommendation

Retrofit With Replace With

Dishwashers ENERGY STAR®-Certified dishwashers

FaucetsAerators or laminar flow devices (1.5 gallons per minute or less) or foot-operated valves

Models with flow rate of 0.5 gallons per minute

Water-Cooled Single-Pass Ice Machines

Closed-loop recirculation ice machines

Air-cooled ice machines (less than 50 gallons per 100 pounds of ice produced)

Pre-Rinse Spray Valves WaterSense®-labeled models (1.28 gallons per minute or less)

Steam CookersENERGY STAR®-qualified connectionless steam cookers (3 gallons per hour)

Boiler-Based Steam Kettle Condensate return systems Self-contained steam kettles

Wash Down Sprayers Water-efficient sprayers and self-closing nozzles on heavy-duty hoses

Wok Stoves Recirculating models and/or knee operators Waterless models

Existing Industrial Equipment

ExistingEquipment

Recommendation

Retrofit With Replace With

Cooling Towers Meters, control systems, and alternative water sources (reuse)

Newer cooling tower models with improved designs and materials

Medical Equipment Steam Sterilizers

Thermostatically actuated valves and uninsulated heat exchange tanks

Newer steam sterilizer models that do not use condensate discharge-tempering water

4

Introduc�tion to the Water Conserva�tion and Reuse Grant Pilot Program

Alternative Water Sources for On-site Water ReuseThe NYC Construction Codes regulates two types of on-site water reuse systems: wastewater and rainwater. The non-potable alternative water sources approved for on-site water reuse systems are described on the following page. As indicated, the level of treatment depends upon the alternate water source and the end uses for the treated water.

Black WaterDischargefromwaterclosets,urinals,bathtubs,showers,clotheswashers,andlaundrytrays,washdownwaterandblowdownwaterfromcoolingtowers,andanyotherfixturesdischarginganimalorvegetablematerinsuspensionorsolution.

Gray WaterDischargefromlavatories1

andcondensatewater.Dischargedoesnotincludewastewaterfromtoilets.

RainwaterPrecipitationcollecteddirectlyfromtheskyorfromroofandbalconyrunoff.

Black Water

Gray Water

Rainwater

Treatment OverviewBlackwateristhemostcontaminatedsourceofwateravailableon-site;however,itisoftenoneoftheeasiesttocollectasitdoesnotrequireaseparatecollectionsystemandcantypicallybecollectedatasinglelocationpriortodischargetothesewer.In addition to the filtration and disinfection requirements for all other alternate water sources, black water systems also require biological treatment to lower the levels of organic material in the water. Thisistypicallyachievedbyintroducingsimplebacteriaintothewastewatertodigesttheorganicmaterial.Thebacteriaarethenfilteredoutinadownstreamtreatmentprocess.

Graywaterqualityishighlyvariableandsite-specific.Graywatercontainsmanyofthesamecontaminatesasblackwater,butinmuchlowerquantitiesbecauseithasnotcomeintocontactwithfoodorhumanwaste.Filtration and disinfection is usually sufficient, without further treatment, to meet water quality criteria.

Precipitationistypicallycleanwheniffallsfromthesky;however,rainwatermaybecomecontaminatedduringcollectionorfromparticulatematterintheatmosphere.Rainwatersystemstypicallyrequiretheleastamountoftreatment.Ingeneral,debrisexcluders,firstflushdiverters,andfiltrationprovideadequatetreatmenttomaintainarainwatersystem. Disinfection of rainwater may be required for some uses.

Wasterwater

Photo courtesy of Natural Systems Utilities

1. Does not include wastewater from toilets.

5

Introduction to the Water Conserva�tion and Reuse Grant Pilot Program

Special Design and Construction ConsiderationsWhile this guide touches upon some regulatory framework, the Grantee is responsible for ensuring all proposed water efficiency measures comply with applicable permit requirements.

Cooling TowersCooling towers are regulated by both New York City and New York State law. The Special Design & Construction Considerations section at the end of this guide, beginning on page 12, provides an overview of the current regulations governing the registration and maintenance of cooling towers in New York City.

Reuse SystemsWater reuse systems are regulated by the New York City Department of Buildings (DOB), pursuant to the 2014 NYC Construction Codes and per guidance or bulletins issued by DOB. Some water reuse systems may also require review and approval by the New York City Department of Health and Mental Hygiene (DOHMH). The Special Design & Construction Considerations section at the end of this guide, beginning on page 12, contains an overview of: design components, allowed usages, water quality parameters and standards, monitoring and reporting frequencies, and other requirements.

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1 Submit DEP Water Conservation and euse Grant Applicatio

Includes a completed Application Form, Documentation of Current or Future Water Demand and Potential Savings, and Project Work Plan.

Outcome:Ifselected,DEPwillsendaGrantAcceptancePackagetoGrantee.

2 Grantee Submits Signed Grant Acceptance Package to DEP

The Grantee must complete all the paperwork within the Grant Acceptance Package and return to DEP within six months.

Outcome:Uponapproval,DEPwillissueaNoticetoProceed, after which construction can begin.

3 Construction/Installation of Water Conservation Project

During construction, the Grantee is responsible for ensuring:

» construction begins withinsix months following the Notice to Proceed date,

» all proposed water efficiency measures comply with applicable permit requirements,

» progress reports are submitted to DEP on a quarterly and annual basis,

» all expenditures are documented for invoicing purposes, and

» construction must be completed within three years of the Notice to Proceed date.

Outcomes:

» Reimbursementofthird-partyFacilityWaterUseSurvey,andthird-partyDesignServicesinvoicedaftertheNoticetoProceedisissued.

» Reimbursementofupto50%ofequipmentcostsinvoicedat50%constructioncompletion.

» TheGranteewillcontactDEPuponcompletionoftheProjecttoscheduleafinalinspectionbyDEPstaff.

5 Final Invoice for Water Conservation P oject

Grantee to submit all required documentation as agreed upon in Funding Agreement.

Outcome:Reimbursementofremaininggrantvalue.

4 Final Inspectio

DEP verification that the water conservation project was constructed in accordance with the Project Work Plan.

Outcome:Uponapproval,DEPissuesaFinalAcceptanceLetter.

Project Closeout and Maintenance

Requirements

Project Construction and Reimbursement

of Costs

Applying to the Grant Pilot Program

Steps for Receiving a Grant2

7

Steps for Receiving a Grant

This grant program promotes water efficiency projects on private property that consider all opportunities for water conservation within the building. Grant reimbursement will be available to any institutional, residential, or commercial customer who receives a water bill directly from DEP for their own water use, and not for resale.

EligibilityApplicants that do not meet one or more of the criteria listed below will be deemed ineligible:

• The Applicant must have an account in good standing with a functioning Automated Meter Reading(AMR) device and one year of water use data. Applicants applying for grant funding for new constructionprojects that do not have water use data would qualify for water reuse projects only.

• The project must be constructed within three years of the Notice to Proceed and must offset NYC potablewater use six months following project completion

• The proposed water conservation project must be permanent and operational for a minimum of 10years, beginning after the final disbursement of funds. If the project is not operational for a minimum of10 years, the grantee must submit proof of equipment life, or the grantee may be required to reimburseDEP the entire grant funding amount received.

• The Applicant must comply with the New York City Department of Buildings Plumbing Code, all applicablerules and regulations required by the New York City Department of Health and Mental Hygiene, andother applicable rules and regulations.

• The Applicant must provide a complete application package, including:

» An application form,

» Completed Facility Water Use Survey for projects in an existing building, and/or DEP On-site WaterReuse Calculator workbook for onsite water reuse projects, and

» A project work plan containing detailed water savings potential, schedule, and budget breakdowns.

• Construction must commence within six months of the Notice to Proceed and must offset potable wateruse by one million gallons per year within six months following project completion.

• The proposed project must conserve at least one million gallons of water per year.

Applying to the Program

• The application must be complete.

• The project must be on private property.

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Steps for Receiving a Grant

GrantFundingItems eligible for reimbursement under the Water Conservation and Reuse Grant Pilot Program include:

• Equipment costs, including materials and supplies;

• Third-party Facility Water Use Survey; and

• Third-party Design Services.

Labor will not be reimbursable. The funding conditions and amounts for each eligible item are presented in the tables below. A sample grant funding calculation is also presented to illustrate how funding requests should be calculated. Applicants are encouraged to submit any additional questions to waterconservation@dep.nyc.gov. Except for the third-party Facility Water Use Survey and Design Services, no other costs incurred prior to the Notice to Proceed date are reimbursable.

Water Conservation and Reuse Grant Pilot Program Eligible Funding

Eligible Costs Condition Grant Funding Amount

Equipment WaterSense®-certified fixture replacements

Fixed maximum unit price; see table below1

Custom water efficiency retrofits $10 per gallon per day (gpd) water savings achieved, up to 100% of documented equipment costs

Third-party Facility Water Use Survey and Design Services

Third-party costs for Facility Water Use Survey and any associated Design Services required in development of the application

Up to 20% of total reimbursable equipment costs

Fixed Maximum Unit Prices for WaterSense® Certified Fixture Replacements1

Fixture WaterSense® Specification Maximum DEP Rebate Rates ($/fixture)

Residential Toilets (Tank or Flushometer)

≤ 1.6 gallons per flush $125

Showerheads ≤ 2.0 gallons per minute $45

Bathroom Sink Aerators ≤ 1.5 gallons per minute $3

Commercial Toilets (Flushometer)

≤ 1.28 gallons per flush $650

Urinals ≤ 0.5 gallons per flush $600

1. Funding for all other fixture replacements not listed should be calculated using the custom water efficiency retrofit funding rate.

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Steps for Receiving a Grant

Sample Grant Funding Calculation for a Hotel ProjectScope of Work:

• Replacement of toilets in guest roomsand ice machines on each floor

• Replacement of commercial washingmachines

• Cooling tower modifications totower fill, drift eliminators, fans, andcirculating water flow rates

Retrofit Units $/unitWater

Savings (gpd/unit)

Total Water Savings

(gpd)

Total Reimbursable

Cost ($)

Toilets 40 $125 35 1,400 $5,000

Cooling Tower 1 $10/gpd 9,000 9,000 $90,000

Ice Machines 30 $10/gpd 600 18,000 $180,000

Commercial Washing Machines 1 $10/gpd 2,000 2,000 $20,000

Total Water Savings: 30,400 gpd (11 MGY)Total Reimbursable Equipment Costs: $295,000Maximum Reimbursable for Third-party Facility Water Use Survey and Design Costs (20% Reimbursable Equipment Costs): $59,000Total Contracted Not to Exceed Amount: $354,000

10

Steps for Receiving a Grant

GrantApplicationInterested private property owners must complete and submit an application to DEP for funding. A copy of the application form, including a list of all required attachments and instructions, can be found in the back of this guide in Appendix A.

ProjectSelectionProcessThe number of grants awarded may be limited based on available funding. Applications will be evaluated for:

1. Cost E�ffectiveness; applicants with a lower unit cost per gallon potable water saved per day ($/gpd)will rank higher.

2. Project Schedule; applicants able to achieve savings on a shorter timeline will rank higher.

3. Feasibility; particularly applicable to innovative water efficiency retrofits, applicants that can providedetailed calculations of water savings estimates as part of their detailed Project Work Plan, submittedas part of the application package, will rank higher.

4. Co-benefits; for example, an applicant that reduces significant wastewater and/or stormwater flows tothe sewer system and wastewater facilities will rank higher.

During the review period, DEP may request to conduct site visits, in coordination with the applicant, in advance of announcing grant recipients. A conditional notice of acceptance, pending funding approval, will be sent to selected recipients. DEP will send a Grant Acceptance Package to the Grantee which will include an: Award Letter, Funding Agreement, Restrictive Covenant, and other applicable contracting paperwork.

GranteeAgreementTerms&RestrictiveCovenantThe Grantee must complete all the paperwork within the Grant Acceptance Package and return to DEP within six months of the Award Letter date. Before submission, the Grantee must record the Restrictive Covenant with the New York City Department of Finance and insert the cover page (provided by the Department of Finance) as an appendix into the Funding Agreement, upon successfully recording the Restrictive Covenant. A sample Grantee Agreement and Restrictive Covenant can be found on the program webpage at www.nyc.gov/dep/water-conservation-grant.

DEP’s Agency Chief Contracting Office (ACCO) will review the complete Grant Acceptance Package and send the Funding Agreement to the New York City Office of Management and Budget (OMB) for registration. Upon acceptance of registration, DEP will issue a Notice to Proceed to the Grantee. After the Notice to Proceed has been issued, the third-party Facility Water Use Survey and Design Services may be invoiced. Additionally, DEP will only reimburse equipment purchased after the Notice to Proceed.

11

Steps for Receiving a Grant

ConstructionTimelineThe Grantee must commence construction within six months following the Notice to Proceed date. Construction and commissioning must be completed within three years of the Notice to Proceed date, unless in DEP's sole discretion, a written extension has been granted.

ReportingDuring construction and commissioning, the Grantee will be required to provide the DEP Project Manager with detailed quarterly and annual status reports.

ReimbursementofCostsThe Grantee may invoice, with appropriate supporting documentation, for the following during the Construction Phase:

• After the Notice to Proceed has been issued, third-party Facility Water Use Survey and Design Servicesmay be invoiced; note that the total of the Facility Water Use Survey and Design Services are not toexceed 20% of total equipment costs.

• At 50% completion, an additional invoice may be submitted for reimbursement of 50% of totalequipment costs paid to date. If the Facility Water Use Survey and Design Services have not beenpreviously invoiced, they can also be included in this invoice.

In all cases, DEP reserves the right to conduct site visits prior to any reimbursement of equipment costs.

Project Construction and Reimbursement of Costs

12

Steps for Receiving a Grant

ProjectFinalInspection&CloseoutUpon completion of the Project, the Grantee will contact DEP for a final inspection. After the Project has been inspected, and punch-list items have been addressed, DEP shall issue a Final Acceptance Letter. Only after the Final Acceptance Letter has been issued will DEP process the final invoice for the remaining equipment costs that have not been previously invoiced. If the final costs of the Project are less than the Grant Award, the difference will not be disbursed to the Grantee.

If the Project is an on-site water reuse system, a Maintenance Plan shall be submitted before construction closeout, for DEP review and approval. The Maintenance Plan must include all maintenance requirements including labor, equipment, materials, and frequencies for the ten-year Maintenance Period.

Operation&MaintenanceThe constructed water conservation project must be permanent and operational for a minimum of 10 years, beginning after the final disbursement of funds. DEP will monitor annual water use via the facility’s AMR and if the submitted annual reports show that the system does not consistently conserve at least one million gallons of water per year for a minimum of 10 years, the Grantee is required to reimburse DEP the entire grant funding amount received.

If the Project is an on-site water reuse system, the Grantee will be required to submit reports per the Maintenance Plan stipulated in the Grantee Agreement.

Project Closeout and Maintenance Requirements

13

New York City Cooling Tower RegulationsApplicants considering a cooling tower retrofit project should refer to the following city and state regulations:

Per Chapter 8 of the Rules of the City of New York, in compliance with Local Law 77 of 2015, all building owners and property managers are required to:

• Register new cooling towers,

• File an Annual Certification that the equipment is complying with the Maintenance Program and Plan(MPP), and

• Retain a qualified individual to implement and track activities associated with the MPP.

These rules also provide guidance on system operation including:

• Replace system parts with corrosion-resistant, sunlight-blocking materials, and

• Perform daily, automatic chemical treatment of system water and continuously recirculate water (threetimes per week water quality testing is required if not automated).

The New York Title 10 of the New York Codes of Rules and Regulations (10 NYCRR), Part 4, “Protection against Legionella,” also applies to cooling towers in New York City and should be consulted.

Special Design and Construction Considerations

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14

On-site Water Reuse Systems Water Reuse Design and Construction Considerations

Design ComponentsOn-site water reuse systems typically

have four major components that should be considered in the design

phase. The NYC Plumbing Code should be consulted for specific requirements.

Multiple photos courtesy of Natural Systems Utilities

Thisincludesinfrastructuresuchasrainwatergutters,orgraywaterpipingsystemsthatareinstalledtocollectanalternatewatersourceon-site.Thismayalsoincludeequalizationstoragetohelplevelflowpriortotreatmentassupplyanddemandvarythroughouttheday.

Special Design and Construction Considerations

Alternate Water Source Collection System

Treatmentisdependentonboththealternativewatersourceandtheenduse.Rainwaterisrelativelycleanandrequireslittletreatment,whileblackwaterrequiresdisinfectionandbiologicaltreatmenttoremoveorganiccontaminants.

On-Site Treatment and Disinfection Systems

Treatedwaterstorageisneededtomeetthevaryingdemandsofthenon-potablesystem.Forexample,inanofficebuildingthatusesnon-potablewaterfortoiletflushing,mostdemandisduringthedayandwaterisusuallystoredatnightwhendemandislow.

Treated Water StorageThedistributionsystemandreservoirsneedtobeidentifiedascontainingnon-potablewaterandarecommonlyknownaspurplepipingordual-plumbing.Non-potablepipingisrequiredtobecoloredormarkedpurpletodistinguishitfromapotablewatersystem.Thisprotectsthefixturesthatusepotablewater,includingsinks,showersandthepublicdrinkingwatersupply.

Non-potable Distribution System Piping and Plumbing Requirements

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Allowed Usages and Treatment Requirements for Water Reuse Systems Recognized in New York CityThe 2014 NYC Construction Codes regulates two types of on-site water reuse systems; references are provided below.

On-site Water Reuse System Type

Allowed Source Water Allowed Usage Governing Code

Wastewater Reuse Systems

• Flushing of water closets andurinals;

• Cooling tower makeup1;

• Washing of sidewalks, streetsor buildings

• Laundry;

• Subsurface or drip irrigationsystems, watering plants with ahose; and

• Other approved uses that arelocated on the same lot as thewater reuse system.

2014 NYC Construction Codes PC C102

Rainwater Reuse Systems

• Used solely for cooling towermakeup1; and

• Subsurface irrigation and dripirrigation.

2014 NYC Construction Codes PC C103

1. Facilities seeking to utilize rainwater capture or recycling water systems as a source of cooling tower system makeup water need to consultwith and obtain approval from DOHMH regarding specific water quality standards and other requirements that may be required by DOHMH for cooling tower makeup water, per NYCRR, Title 24, Chapter 8.

Black Water

Gray Water

Rainwater

Rainwater

Cooling Tower Condensate

Special Design and Construction Considera�tions

16

Water Quality StandardsPer the 2014 Construction Codes, all on-site water reuse systems (other than systems collecting only rainwater and/or condensate used solely for cooling tower makeup and/or subsurface and drip irrigation) must achieve the following minimum effluent water quality standards during operation (2014 NYC Construction Codes PC Table C102.1). The following provides a summary of those minimum standards, as well as the monitoring and reporting frequencies:

Permit Limits, Levels, and Monitoring1

ParameterEffluent Limit

Limit UnitBOD2 <10 mg/L

TSS <10 mg/L

Total Coliform <100 No./100 mL

E. Coli <2.2 No./100 mL

pH 6.5 - 8.0 SU

Turbidity3 <2.0 NTU

1. Facilities seeking to utilize rainwater capture or recycling water systems as a source of cooling tower system makeup water need to consultwith and obtain approval from DOHMH regarding specific water quality standards and other requirements that may be required by DOHMH for cooling tower makeup water, per NYCRR, Title 24, Chapter 8.

2. Effluent from rainwater and condensate collected in separate tanks or compartments from wastewater shall not be required to meet theBOD limitations indicated above.

3. The wastewater facility effluent must meet the performance standards of < 2.0 NTU for turbidity for 95% of the measurements. At no timecan the turbidity result be above 5 NTU. These results shall be recorded and compiled in the annual report.

Key Water Quality Parameters• Biochemical Oxygen Demand (BOD): The amount of dissolved oxygen needed by an aerobic

organism to breakdown organic material in water.

• Total Suspended Solids (TSS): The measurement of total solid material suspended in the water.

• Total Coliform: Indicator organisms for microbial contamination. UV, Chlorine, and ozone disinfectionare highly effective at removing microbes and the associated public health risk.

• E. Coli: Indicator organisms for microbial contamination. UV, Chlorine, and ozone disinfection arehighly effective at removing microbes and the associated public health risk.

• pH: Measure of the acidic or basic nature of a solution. pH can be used to gauge wastewatertreatment efficiency and the corrosion potential of the water in the distribution system.

• Turbidity: Measure of water clarity and a useful indicator of the likelihood that the water may becontaminated with pathogens. Filtration processes are highly effective at removing turbidity.

Special Design and Construc�tion Considera�tions

17

Monitoring and Reporting FrequenciesThe following table summarizes the water quality monitoring and reporting frequency requirements for systems throughout start-up, temporary use and final acceptance, as outlined in DOB Bulletin 2010-027.

Monitoring and Reporting Frequencies

ParameterSample Frequency and Monitoring Requirements

Start-up Temporary Use Final Permit

BOD2 5 days/week Weekly Monthly

TSS 5 days/week Weekly Monthly

Total Coliform 5 days/week Weekly Monthly

E. Coli 5 days/week Weekly Monthly

pH 5 days/week Weekly Monthly

Turbidity3 5 days/week Weekly Monthly

Phase Duration Two Weeks Three Months N/A

Reporting Frequency Once, after two week start-up1

Monthly over duration of testing period2 Annually

1. Facilities seeking to utilize rainwater capture or recycling water systems as a source of cooling tower system makeup water need to consultwith and obtain approval from DOHMH regarding specific water quality standards and other requirements that may be required by DOHMH for cooling tower makeup water, per NYCRR, Title 24, Chapter 8.

2. Effluent from rainwater and condensate collected in separate tanks or compartments from wastewater shall not be required to meet theBOD limitations indicated above.

3. The wastewater facility effluent must meet the performance standards of < 2.0 NTU for turbidity for 95% of the measurements. At no timecan the turbidity result be above 5 NTU. These results shall be recorded and compiled in the annual report.

Special Design and Construc�tion Considerations

18

System BypassIn the event of system malfunction, failure, or any condition that causes the system to exceed the water quality limits outlined by DOB, the system will have to be bypassed. This means that potable water provided by the City would be supplied to the non-potable system and the on-site water would be stored or discharged to the sewer system as required.

Makeup WaterFor Wastewater Reuse Systems, City-supplied potable water shall be supplied as a source of makeup water provided that the potable water supply is protected against backflow in accordance with Section PC 608 of the NYC Construction Codes (PC C102.3). Makeup water is not required for Rainwater Reuse Systems providing drip or subsurface landscape irrigation systems (PC C103.3).

Cross Connection ControlA cross connection is a physical connection between the potable water system (drinking water) and a non-potable water system, which is not allowed (NYC PC C101.8).

Piping and Other Identification RequirementsPipingDistribution piping shall conform to one of the standards listed in Tables 605.4 and 605.5 in the NYC Plumbing Code, shall be painted purple in color or covered in a purple jacket (NYC PC C101.5), and shall be identified as containing non-potable water (NYC PC C101.6). Pipe identification shall be in accordance with section 608.8 of the NYC Plumbing Code (NYC PC C101.6).

Spigots and Hose BibsSpigots and hose bibs dispensing reused water shall be secured from unauthorized use by a locking mechanism. Signage reading “Caution: Non-Potable Water, Do Not Drink” shall be placed above or adjacent to the location of spigots and hose bibs (NYC Plumbing Code C101.6.1).

ColoringIf the treated effluent water is to be dyed, the dye shall be a food grade vegetable dye either blue or green in color and applied before being supplied to the fixtures (NYC PC 102.4).

Multiple photos courtesy of Natural Systems Utilities

Special Design and Construc�tion Considera�tions

19

Applica�tion

PROPERTY OWNER INFORMATION

Owner Name:

Business Address:

Phone:

E-mail:

PROPERTY MANAGER INFORMATION

Owner Name:

Business Address:

Phone:

E-mail:

PROPERTY INFORMATIONPlease provide the following information for each property to be included in the grant application. If there is insufficient space in the table below, please append a complete list to the application package.

Borough-Block-Lot Number DEP Account Number Service Address (number and street)

1-12345-1234 1234567891234 125 Sample Ave.

1

2

3

4

5

6

7

8

9

10

New York City Water Conservation and Reuse Grant Pilot Program

20

Applica�tion

WATER CONSERVATION AND REUSE PROJECT DESCRIPTIONPlease provide a brief description of the water efficient measures being proposed, including: estimated water savings potential, budget, and schedule.

CHECKLIST FOR THE APPLICATION PACKAGE1. Application Form

2. Documentation of Current or Future Water Demand and Potential Savings

3. Project Work Plan

APPLICATION SUBMISSIONAn original and electronic copy of the application must be submitted to:

Original Attention: Water Conservation and Reuse Grant Pilot Program New York City Department of Environmental Protection 59-17 Junction Boulevard, 11th Floor Flushing, NY 11373

Electronic Copy waterconservation@dep.nyc.gov

21

Applica�tion Instruc�tions

New York City Water Conservation and Reuse Grant Pilot Program

For applications to be accepted and considered for funding, the following two documents must be included, in addition to the Application Form, in the Application Package.

DOCUMENTATION OF CURRENT OR FUTURE WATER DEMAND AND POTENTIAL SAVINGS Quantifying water use is an important step in identifying potential savings opportunities. For each property to be included in the grant application, DEP requests that each property’s current water use be documented in the following ways:

Equipment retrofits or replacements, excluding onsite water reuse, in an existing building

Must submit a Facility Water Use Survey for each building.

Equipment retrofits or replacements, including onsite water reuse, in an existing building

Must submit a Facility Water Use Survey for each building, and a completed DEP On-site Water Reuse Calculator for only those buildings with proposed onsite water reuse projects.

An On-site water reuse system in new construction

Must submit a Completed DEP On-site Water Reuse Calculator.

Facility Water Use SurveyThe Facility Water Use Survey may be formatted however the applicant chooses, but the following information must be provided:

• General Building Information including: whether the building is residential/commercial/industrial/mixed use, whatthe part-time/full-time occupancy is, property square footage, building square footage, and year constructed.

• Water Use Information including: DEP account number, and Automated Meter Reading (AMR) data from the 12 preceding months (AMR data can be accessed via https://a826-amr.nyc.gov/mydepaccount/).

• Interior Water Use including: each type of water use, volumes per use, and number of each type.• Exterior Water Use including: each type of water use, volumes per use, and number of each type.• Comprehensive List of Potential Water Saving Measures including: preliminary water savings, costs, and

optional return on investment (ROI) calculations.

Applicants may conduct the Facility Water Use Survey themselves, but if selected for a grant, DEP will only reimburse third-party Facility Water Use Survey costs.

On-site Water Reuse CalculatorA link to the On-site Water Reuse Calculator can be found on the program webpage at nyc.gov/dep/water-conservation-grant.

PROJECT WORK PLANThe Project Work Plan must fully describe the scope of work, including:

• Project Summary, including a summary of the findings of the Facility Water Use Survey or On-site Water ReuseCalculator, and detailed descriptions of those recommendations to be implemented under the Water Conservationand Reuse Grant Pilot Program.

• Estimated Water Savings Potential for each proposed equipment retrofit or replacement. Savings potentialshould be calculated using the current water use documented in the Facility Water Use Survey and themanufacturer’s water use estimates for the proposed equipment retrofit or replacement.

• Budget, per calculation instructions on pages 8-9 of the 2019-2020 New York City Water Conservation andReuse Grant Pilot Program Guide.

• Schedule• Maintenance Plan (Onsite Water Reuse Systems Only)

For More Information:

Website: nyc.gov/dep/water-conservation-grant

Email: waterconservation@dep.nyc.gov