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Home My WebLink AboutNYC Environmental Protection - One Water NYC 2023 Water Demand Management PlanJUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1 ONE WATER NYC: 2023 Water Demand Management Plan JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 32 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 ONE WATER NYC: 2023 Water Demand Management Plan NYC Department of Environmental Protection nyc.gov/dep/onewater onewater@dep.nyc.gov JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 54 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 TABLE OF CONTENTS PART 1 Strategies for Success: Achievements in Demand Management PART 2 Beyond Demand Management: New York City's One Water Journey JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 76 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 PART 1 Strategies for Success: Achievements in Demand Management JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 98 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 STRATEGIES FOR SUCCESS: ACHIEVEMENTS IN DEMAND MANAGEMENT Water has played an essential role in making New York City a cultural and economic capital of the world. The New York City Department of Environmental Protection (DEP) holds the critical mission of enriching the environment and protecting public health for New Yorkers. DEP provides high quality drinking water to more than nine million New Yorkers daily, as well as managing wastewater and stormwater across the five boroughs. Despite a steady increase in population since the 1980s, New York City’s average daily water demand has decreased dramatically over the past several decades; since 2009, the daily demand has been below that of the 1960s drought. Several factors are responsible for this decrease, including increased efficiency and awareness regarding water conservation and the implementation of DEP’s Water Demand Management Program. The driver of the 2013 Water Demand Management Plan was to optimize water supply during the Delaware Aqueduct shutdown and repair. The Delaware Aqueduct shutdown will begin in October 2024 and is expected to last eight months. As part of its planning process for the shutdown, DEP evaluated various options and developed a cost-effective program with a focus on water demand management through conservation. The most cost-effective options are what became the top demand management strategies. Municipal Water Efficiency Program focused on retrofitting and replacing water fixtures in public facilities. Water Distribution System Optimization focused on leak detection, pressure management, and metering. Residential Water Efficiency Program replaced inefficient fixtures in multi-family buildings. Water Supply Shortage Management revised the Water Shortage Emergency Rules in preparation for potential changes in DEP’s water supply. Non-Residential Water Efficiency Program created voluntary water conservation programs and provided cost-sharing incentives to the private sector. Wholesale Customers Water Demand Program developed and implemented demand management plans for the largest wholesale customers that were tailored to their individual water systems. Workers inside the Delaware Aqueduct Bypass Tunnel Ashokan Reservoir Calendar Year NYC Demand (MGD) New York City Population : : : : : : : : : : Average DailyDemand (Million Gallons per Day, MGD) : : : : : : : : : : Per Capita Demand (Gallons per Day, GPD) 1960 1970 1980 1990 2000 2010 2020 Water Demand (MGD)Population in Millions MGD MGD MGD Million People Historical Water Demand and Population Since 2009, average daily demand has been below the 1960s drought-of-record (1,045 MGD). Demand in 2022 slightly increased from 2021 which was a 60+ year low (979 MGD). This report will highlight successes of the Demand Management Program over the past 10 years and dive into case studies for more detail within each strategy, closing this chapter of the Water Demand Management Program. This report will also set the stage for the next phase of DEP’s Demand Management Program and introduce the new drivers and vision for a One Water strategy, which will focus on long-term planning that considers growth and redevelopment, climate change, and the best ways to incorporate equity and affordability into DEP’s projects moving forward. DEP's Water Resources Art and Poetry Contest Winner, 2016 JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1110 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 10-YEAR PROGRAM RETROSPECTIVE 2013 Municipal Water Eciency Water Distribution System Optimization Residential Water Eciency Water Supply Shortage Management Non-Residential Water Eciency Wholesale Customers Water Demand CONSERVATION STRATEGIES FDNY Training AcademyReuse Project (2013 - 2018) Installed a reuse system to reduce potable water use during trainings and replaced old ﬁxtures with high eciency toilets and urinals at 12 ﬁrehouses; achieved .03 MGD water savings. Wholesale Customers Demand Management (2014 – current) Created to reduce water demand through ﬁxture replacement and advanced metering systems; achieved 5.31 MGD water savings. Water Conservation & Reuse Grant(2016 – current) Incentivizes building owners to install retroﬁts and onsite water reuse systems that achieve a minimum water savings of one million gallons per year. WAIT… Mobile App (2016 – current) Engages the community and encourages voluntary water conservation in residential buildings during combined sewer overﬂow (CSO) events. The app notiﬁes users when a large storm event is occurring so they can minimize their water use. Water Challenges (2016 – current) Engages wastewater resource recovery facilities, hotels, restaurants, hospitals, and universities through competitions that encourage water use reductions at each facility. Department of Parks Spray Shower Retroﬁts (2013 - 2017) Installed push-button activated timers to limit water use at 400 spray shower locations; saved over 1.1 MGD. Department of Education Fixture Retroﬁts/ Porcelain Recycling (2013 - 2023) Retroﬁtted 40,000 toilets and urinals at 500 schools and reused the porcelain of the old toilets for green infrastructure and ecological restoration projects; achieving 3.8 MGD water savings. Toilet Replacement Project (2014 - 2021) Oered vouchers to install high eciency toilets; replaced more than 13,000 toilets, achieving .63 MGD water savings. Brooklyn Botanic Gardens Stream Restoration (2015 - 2019) Implemented an ecient pumping and rainwater reuse system for outdoor irrigation; achieved 0.06 MGD water savings. Central Park Recirculation Project (2018 - current) Recirculates water between Central Park's northern water bodies; anticipated to achieve .48 MGD water savings and 3.8 Million Gallons per Year (MGY) CSO reduction. Water Savings per Strategy Over the last ten years, our strategies have led to achieving a savings of 16.8 million gallons of water per day. Water Shortage Emergency Rules Promulgated in May 2022 to support additional contingency water savings, if necessary, during future planned infrastructure repairs or unplanned water supply shortages. 16.8 MGD 1.03MGD .21MGD 22.7MGD (million gallons per day) Total WaterSavings 8.52MGD 7.65MGD 5.31MGD from reduced water and wastewater treatment needs 0 20MGD 2023 GOAL In 2013, as part of the Water for the Future Program, DEP collaborated on public and private partnerships and implemented a comprehensive Water Demand Management Program to accomplish significant water savings. Water savings are typically based on estimated efficiency of low flow fixtures and other conservation measures compared to historical water usage. Automated Meter Reading (AMR) data was used when available to track savings. JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1312 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 MWEP CASE STUDY: DOEMUNICIPAL WATEREFFICIENCY PROGRAM FOCUS: Achieve water savings through ecient water ﬁxtures in public facilities. The New York City government workforce is comprised of over 280,000 employees working in over 50 city agencies, in dozens of City-owned facilities and buildings. Each employee uses water for daily operational needs and to carry out responsibilities that are critical to New York City. By developing partnerships with other municipal agencies, the Municipal Water Eciency Program (MWEP) has achieved the most water savings of all the programs initiated under the Water Demand Management Plan. Through MWEP, DEP has advanced a wide-ranging eort that incorporated water eciency retroﬁts, education, metering, and water benchmarking. Through the Water Demand Management Program, DEP has been able to build lasting partnerships to deliver impactful projects. A sample key partnership is with the NYC Department of Education. The DOE manages the largest school system in the country, with over 1,400 facilities serving over one million students. Since 2013, DEP has been upgrading bathroom ﬁxtures in DOE facilities. To date, over 40,000 ﬁxtures have been retroﬁtted at over 500 public schools. These new ecient low-ﬂow toilets and urinals have achieved 3.8 MGD of water savings. Furthermore, 10,000 tons of porcelain from this program has been recycled and reused for green infrastructure and ecological restoration projects. CASE STUDY: PARTNERSHIP WITH DEPARTMENT OF EDUCATION Students from PS 107 in the Bronx playing outside PRE1980S TOILET gallons per ﬂush5+ HIGHEFFICIENCYTOILET TODAY gallons per ﬂush1.28 DOE Water Savings by Neighborhood (gallons per day, GPD) 0 < 10k 10k - 20k 20k - 30k 30k - 40k 40k - 63k Over44,000 ﬁxtures upgraded Completed upgrades and retroﬁts in over 560facilities 3.8 MGD DOE Over 500 public schools have been retroﬁtted with over 40,000 new ﬁxtures. 1.1 MGD DPR Push-button activated buttons installed on 400 spray showers 9 recreational centers retroﬁtted .67 MGDNYCHA Retroﬁtted toilets across NYCHA residences through the Toilet Replacement Program (TRP) 2.73 MGDDEP Organized 5 water challenges with 14 wastewater facilities to promote water conservation across the agency. A 6th water challenge will conclude at the end of 2023 .04 MGDCUNY 10 Campus buildings retroﬁtted at City College 1,035 ﬁxture retroﬁts underway across 4 buildings at Queens College, expected to save .03 MGD .07 MGD HHC 1,471 ﬁxtures retroﬁtted at Harlem Hospital Planned ﬁxture retroﬁts and vacuum pump replacement underway at 5 additional hospitals .02 MGD DCAS Retroﬁtted ﬁxtures at 4 DCAS owned buildings .06 MGDBrooklyn Botanic Garden Funded pump system portion of water recirculation and reuse project .03 MGD FDNY Funded 30,000 GPD reuse facility at FDNY training facility and retroﬁtted 12 ﬁrehouse bathrooms KEY HIGHLIGHTS CUNY – City University of New York DCAS – Department of Citywide Administrative Services DOE – Department of Education DPR – Department of Parks and Recreation FDNY – Fire Department of New York HHC – Health + Hospitals Corporation NYCHA - New York City Housing Authority Total Savings 8.12 MGD KEY HIGHLIGHTS ACHIEVEMENTS STATEN ISLANDSTATEN ISLAND BROOKLYNBROOKLYN QUEENSQUEENS BRONXBRONX MANHATTANMANHATTAN Total Water Savings8.52 MGD Estimated based on retroﬁtted ﬁxture eciency and automated meter readings (AMR) Established successful partnerships with8 municipal agencies to implement water eciency measures JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1514 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 FOCUS: Create water conservation incentives for private properties. The Non-Residential Water Eciency Program targets the private sector to promote water conservation practices by providing cost sharing incentives. One program that is part of the Non-Residential Water Eciency Program is the water and wastewater rate discount programs for installation on private property. Additionally, DEP has partnered with restaurants, hotels, hospitals, and universities to issue yearlong challenges to reduce their water consumption by at least 5%. To further incentivize the use of reuse systems, Water Conservation and Reuse Grant Pilot Program was launched in 2016. While the primary goal of this program is to conserve potable water, onsite water reuse is also an important part of DEP’s integrated approach towards managing water resources by reducing ﬂows to the sewer system and wastewater facilities, which can contribute to reductions in combined sewer overﬂows. Plumbing Code Updates Updated standards for onsite nonpotable water systems, which went into eect late 2022 Water Challenges Organized 4 sector-speciﬁc water challenges with hotels, restaurants, and universities, saving .21 MGD PLUM B I N G CODE Water Rate Discounts DEP oers a 25% water fee discount to customers who install water reuse systems that reduce the building’s water consumption by at least 25% A 76% wastewater fee discount is also oered for properties that discharge less than 25% of their ﬂow Water Conservation and Reuse Grant ProgramDEP provides funding for the installation of certain nonpotable water systems and other eciency measures. One active grant is in progress with Domino Sugar. See page 30 for case study details. NONRESIDENTIAL WATER EFFICIENCY PROGRAM DEP’s voluntary water conservation programs improved water eciency in many restaurants, hotels, hospitals, and universities across the city. DEP’s voluntary water conservation programs improved water eciency in many restaurants, hotels, hospitals, and universities across the city. KEY HIGHLIGHTS Total Water Savings.21 MGD Estimated based on automated meter readings (AMR) RESIDENTIAL WATER EFFICIENCY PROGRAM FOCUS: Replace inecient ﬁxtures in multi-family buildings. Residential water demand accounts for the highest water use by land use type, making up 84% of meter-billed water consumption. The Residential Water Eciency Program was critical in reducing residential demand from inecient ﬁxtures. The main initiatives were the Toilet Replacement Program (TRP) and the Home Water Savings Kits, through which participants learned the beneﬁts of conservation and how much water and monetary savings can be achieved when inecient ﬁxtures are replaced and leaks are identiﬁed. Total Water Savings1.03 MGD Estimated based on retroﬁtted ﬁxture eciency Engaging the community to share to the beneﬁts of replacing inecient ﬁxtures and conserving water is critical to DEP's mission. Engaging the community to share to the beneﬁts of replacing inecient ﬁxtures and conserving water is critical to DEP's mission. Provided 100,000 complimentary apartment household water surveys in single and multi-family customer units Expanded TRP to 96 homeowner water assistance program (HWAP) customers ..4 MGD home water kit savings Over13,000 residential toilets retroﬁtted citywide through the TRP Expanded TRP to 86 NYCHA facilities in 2017 (545 toilets retroﬁtted) .63 MGD Total water savings through the Toilet Replacement Program KEY HIGHLIGHTS JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1716 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 FOCUS: Enhance leak detection, pressure management, and metering. DEP delivers over one billion gallons of drinking water to over nine million New Yorkers every day. Delivery of this water is made possible through 7,000 miles of water mains and 830,000 service lines in residential and non-residential buildings and a vast water supply system that encompasses 2,000 miles of protected watershed, including 19 reservoirs and three controlled lakes. For operating and maintaining the large in-city distribution system, much of which is underground, DEP employs systemwide best practices, which include pressure management, systemwide leak detection and repair, meter replacement, Automated Meter Reading (AMR) software, and providing an online platform for customers to track and monitor water use and detect leaks in their buildings. MWEP CASE STUDY: DOE DEP sta installing an automated water meter DEP ﬁeld sta on Dumont Avenue in Brooklyn working to repair the pipes below DEP ﬁeld sta marking the street in preparation for upcoming repairs Bureau of Water and Sewer Operations workers replacing hydrants My DEP Online Customer Portal Hydrant Maintenance and Illegal Use Leaking and/or vandalized ﬁre hydrants can result in signiﬁcant water waste; an illegally opened ﬁre hydrant can release more than 1,000 gallons per minute. DEP Stats in 2022: Leak Detection In 2022, DEP surveyed a total of 811 miles of water mains. As a result of leaks proactively found and repaired, DEP estimates that 5.76 MGD of water was saved. Customer Data and Leak Alerts Optimize Pressure Management 7,435 hydrants repaired 822 hydrants replaced 10,462hydrants maintained About 472,000 customers enrolled in My DEP Account to view their bills and water usage; over 696,000customers signed up for leak alerts. Optimize Metering and Replace Large Water Meters 1,820 large meters replaced in 2022 In 2022 DEP completed 5,079 preventive maintenance inspections/calibrations on pressure regulating valves In 2022, the number of breaks per 100 miles was 6.92, slightly above the City’s 10-year average of 6.58, and well below the accepted industry average of 25 breaks per 100 miles annually. DEP also overhauled 48 of the 504 pressure regulating valves that are in use citywide. WATER DISTRIBUTION SYSTEM OPTIMIZATION Total Water Savings7.65 MGD Estimated based on typical volume reduction by leak ﬁxed JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 1918 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 FOCUS: Develop and implement tailored demand management plans for the largest wholesale customers. The Wholesale Customer Demand Management Program was launched by DEP in 2014 to extend demand reduction strategies to its wholesale customers (Utility Partners). The goal of this program is for Utility Partners to implement demand management projects to reduce demand by 5% from their 2013 baseline demand. These Utility Partners include the Town of Greenburgh, the Village of Ossining, the Village of Scarsdale, the Village of Tarrytown, Westchester Joint Water Works (WJWW), the City of White Plains, and the City of Yonkers. Unfortunately, unforeseen circumstances brought on by the COVID-19 pandemic resulted in DEP and its Utility Partners agreeing to terminate the existing contracts under this program. However, DEP’s robust outreach and engagement, coupled with the determination and initiative of Utility Partners, resulted in a sustained average savings of 5.31 MGD. These savings were achieved through a combination of multiple demand management strategies such as water loss control, automated metering infrastructure and monthly billing, municipal upgrades, residential indoor ﬁxture replacement voucher programs, and water ﬁltration plant upgrades. DEP thanks and recognizes its participating Utility Partners for implementing conservation projects and water loss control strategies to achieve these savings. PROGRAM HIGHLIGHTS WHOLESALE CUSTOMERS WATER DEMAND PROGRAM PROGRAM HIGHLIGHTSPROGRAM HIGHLIGHTS Total Water Savings5.31 MGD Estimated based on typical volume reduction by leak ﬁxed and automated meter readings (AMR) WATER SUPPLY SHORTAGE MANAGEMENT FOCUS: Revise the Water Shortage Emergency Rules in preparation for potential changes in DEP’s water supply. DEP continually examines water use restriction best practices to adapt to future water supply conditions. These future conditions could include changing hydrologic conditions due to climate change, aging infrastructure, unplanned water supply shortages caused by events such as drought or infrastructure outages, and planned temporary, non-emergency infrastructure repairs. In preparation for the Delaware Aqueduct shutdown, DEP revised the Water Shortage Emergency Rules to address potential changes in DEP’s water supply, and these changes have been eective as of May 13, 2022. Although Water Supply Shortage Management does not provide permanent demand savings, this strategy plays a key role in temporarily reducing demand when supply is limited. CASE STUDY:PARTNERSHIP WITH THE CITY OF YONKERS In January 2023, DEP was able to reinitiate our partnership with the City of Yonkers, NYC’s largest wholesale customer, to implement a combination of tailored demand management strategies. Yonkers obtains all its water from the NYC water supply and is experiencing shortage risks for maintenance and rehabilitation projects due to its aging distribution system, which serves a diverse topography. To address this, Yonkers has selected three main strategies for implementation: In total this partnership is expected to result in an additional 1.3 MGD in savings over the course of 5 years. Croton Lake Gatehouse Initiate leak detection, pressure management, and leak repairs Estimated Savings:1.1 MGD Implement a customer portal with semi-annual billing and advanced metering infrastructure leak alerts Estimated Savings:.2 MGD Contingency future ﬁxture replacements as needed and pending available funding Estimated Savings:.05 MGD 20 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 ADAPTING FOR THE FUTURE Moving Forward The Demand Management Program has proven to be a cost-eective approach that created exciting opportunities and partnerships across multiple sectors throughout New York City. The program continues to provide beneﬁts to the city, with an emphasis on reducing nonrevenue water, optimizing metering infrastructure, and reducing losses in the distribution system with continuous improvement and monitoring eorts. The water savings achieved over the past 10 years has increased the reliability of the water system and reduced city water demand by more than 22.7 MGD. Reducing water demand has also reduced our carbon footprint and the amount of wastewater produced in the city. Thinking of the water system holistically has proven there are many ways to beneﬁt the urban water cycle. The key driver of the 2013 Water Demand Management Plan was to reduce demand and optimize water supply during the Delaware Aqueduct shutdown and repair. As environmental, social, and economic landscapes continue to transform, it will be necessary to adapt management strategies to ensure future needs are met in a sustainable and equitable manner. Cities across the country have seen the value in viewing their water resources holistically. Many cities across the country have adopted plans speciﬁcally to incorporate holistic planning. As the largest combined water and wastewater utility in the United States, DEP will implement holistic planning to continue to be a nationwide leader and meet the growing challenges of the 21st century. This leads us to our next chapter of demand management: One Water. Recreational Boating in DEP's Upstate Watershed NYC Water on the Go 2022 JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 21 JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 2322 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 PART 2 Beyond Demand Management: New York City's One Water Journey WATERSHED APPROACH Considering the entire water cycle builds on the success of our upstate watershed programs and provides the right water for the right use (including the reuse and recirculation of our water resources where possible). FLEXIBLE FRAMEWORK Planning holistically allows DEP to adjust quickly to future events such as climate change impacts, unexpected budgetary restrictions, evolving regulatory requirements, and changing organizational priorities. NATURAL RESOURCE USE Using less water reduces the need for energy for treatment at our water and wastewater facilities, and also leaves more water in the natural environment. MAXIMIZE COBENEFITS Utilizing green infrastructure provides natural treatment for stormwater while reducing ﬂooding from rain events and also reducing the stress on the overall system. Collected rainwater can be reused for nonpotable applications. COMMUNITYBASED PROGRAMS Learning about the water cycle helps New Yorkers understand how their water use impacts the water system. Incentive and aordability programs support water savings and provide equitable opportunities for ﬁnancial relief for water services. WastewaterResourceRecovery Facility Harbor EN E R G Y Source Water REUSE &RECIRCULATION One Water is a holistic approach to water management which emphasizes that all water has value. While water may seem inﬁnite, less than 1 percent of water is accessible for human use. Because the amount of water in the world is ﬁnite, the beneﬁt of every drop should be maximized. One Water requires looking at the water system in its entirety, considering the current and future needs of all its users, and balancing them with future spending commitments to preserve aordability. WHAT IS ONE WATER?Rainfall Rainfall Drinking Water Treatment Plant ENER G Y S TO R M WATER JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 2524 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 One Water embraces establishing new strategies to address citywide issues including population growth, climate change, and equity. Our One Water approach also considers how water management decisions impact the surrounding water bodies and inﬂuence the quality of life in New York City. WHY ONE WATER? GROW T H A N D REDEVELO P M E N T C L I M A T E CHANGE EQUITY EQUITY: Improving equity is an important component of DEP’s long-term planning strategy. Climate change risks are expected to exacerbate existing inequalities across the city, emphasizing the need to make cost-eective investments that address multiple objectives and to identify the most vulnerable communities. Lowering water bills coupled with incentive programs will help to address aordability concerns across the city. Reliable access to safe drinking water is a top priority Aordability of water services is essential Community partnerships help shape our water future V CLIMATE CHANGE: Climate scientists predict an upward trend in precipitation and that there will be a 1.5x increase in rainy days greater than 1 inch by the 2080s. This coupled with an over 50% increase in intense hurricanes by 2100 and up to 30 inches of sea level rise by the 2050s indicate that we need to continue planning and be ready to adapt. Although the Northeast region of the United States is considered water rich, the area is still subject to periodic drought, so we need to implement "no regrets" strategies for both wet and dry extremes. Resiliency of the water system is increased by demand management Reducing combined sewer overﬂow events improves water quality Drought risk may be aected by changes in rainfall and temperature GROWTH AND REDEVELOPMENT: Recently updated water demand and wastewater projections through 2055 show that demand and ﬂow are expected to increase. While the updated projections will assist in identifying speciﬁc areas for water conservation and reuse projects, mitigating increases in demand and promoting low-impact development will also require an improved understanding of the potential impacts of population growth and other community changes. Integrated planning promotes low impact development Water reuse saves water and reduces CSO events Innovative design solutions achieve co-beneﬁts JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 2726 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 INITIAL ONE WATER FOCUS AREAS Throughout history we have understood the need to be stewards of water resources. We will continue this ethic as we work to implement One Water for New York City. We have identiﬁed three areas where we will focus our eorts. Our initial focus areas will include Reuse and Recirculation, Education and Outreach, and Aordability. Aordability places people at the center of One Water to ensure everyone has access to the water they need. Through this focus area, DEP works to balance the needs of underserved communities and prioritize customer aordability. One Water beneﬁts include: •Ensures public accessibility to clean water •Reduces water usage by providing incentive to use less water •Emphasizes the importance of water for future generations AFFORDABILITY Education and outreach promote public engagement and increased community involvement in the development of One Water priorities. Expanding this focus area facilitates timely public input on project selection. One Water beneﬁts include: •Raises awareness on One Water and the urban water cycle •Promotes awareness about water stewardship and supports behavior change •Provides information on assistance and water conservation incentive programs •Engages residents on their connection to water quality in New York Harbor EDUCATION AND OUTREACH REUSE AND RECIRCULATION Reuse and recirculation involves the recycling of nonpotable water for purposes other than drinking. The implementation of this focus area helps ensure water resources are used wisely and responsibly across NYC. Currently, there are approximately 30 buildings in NYC with onsite reuse systems, and DEP is coordinating with the Department of Health and Mental Hygiene to develop guidance for the development and operations of future systems. One Water beneﬁts include: •Decreases potable water demand •Reduces ﬂow to sewers and treatment at wastewater facilities •Increases capacity in the combined sewers, reducing Combined Sewer Overﬂow (CSO) events •Improves receiving water quality ONSITE REUSE SOURCES ONSITE REUSE APPLICATIONS Rainwater Precipitation from a rain or snowmelt event that is collected directly from a roof surface with no public access to people or pets. Cooling towers Toilet/urinal ﬂushing Laundry Irrigation (subsurface, surface nonspray) Sewage Any liquid waste containing animal or vegetable matter in suspension or solution or chemicals in solution. Sources of sewage include water closets (toilets), bidets, urinals, kitchen sinks, utility sinks, and dishwashers. Clear water waste The drips from equipment, coil condensate, steam condensate, single pass refrigeration discharge, reduced pressure zone (RPZ) discharge, and similar matter. Gray water Non-sewage wastewater. Sources include lavatories (bathroom sinks), bathtubs, showers, clothes washers, and laundry trays, but do not include toilets, urinals, kitchen sinks, or dishwashers. JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 2928 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 3130 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 River St Kent Av e S 2 n d S t Gra n d S t S 4 t h S t BROOKLYN East River Will i a m s b u r g B r i d g e The Reﬁnery at Domino Site AResidential/Commercial Site E Residential/ Commercial Site D Residential/ Commercial Domino Square Privately Owned Open Space The Reﬁnery Commercial Domino Non-Potable Water Production Facility Site B Residential/ Commercial Domino District Non-Potable Water Reuse project will treat and reuse stormwater water, both reducing the potable water demand and the CSO events. Domino District Non-Potable Water Reuse project will treat and reuse stormwater water, both reducing the potable water demand and the CSO events. The Domino District Non-Potable Water Reuse Project The Domino District Non-Potable Water Reuse Project in Brooklyn, NY includes the installation of a district-scale nonpotable water reuse system that will be able to treat over 400,000 gallons per day (gpd) of wastewater generated from the Domino Sugar factory redevelopment and adjacent buildings. The system will produce treated nonpotable water to be used in place of potable water for toilet ﬂushing, cooling towers, and irrigation. The project will reduce the demand on New York City’s potable water supply system by saving up to 200,000 gallons of potable water per day while also reducing ﬂows to combined sewers and wastewater treatment facilities. The Domino District Non-Potable Water Reuse Project will treat and reuse wastewater, reducing both potable water demand and CSO events. The Domino District Non-Potable Water Reuse Project will treat and reuse wastewater, reducing both potable water demand and CSO events. •Treats and reuses up to .40 MGD of wastewater as nonpotable water, osetting .13 - .20 MGD potable water, which optimizes water supply •Diverts wastewater from the sewer to reuse on site, addressing sewer capacity constraints and reducing Combined Sewer Overﬂow (CSO) discharge to the East River ~3,000,000 Gallons per year of reduced combined sewer overﬂow ~200,000Gallons per day of reduced city water demand One Water Beneﬁts PROJECT HIGHLIGHT Private Sewer Non-Potable Water Distribution Treated Euent to Stormwater Outfalls Discharge to Existing Sewer LEGEND New Building Existing Building Domino District PROJECT STATUS In Proposal •Replaces potable water with stormwater captured and reused from 205 acres of the park north-end and the Conservatory Garden •Reduces potable water use by .48 MGD and relieves system stress during potential water supply shortages •Recirculates .65 MGD of stormwater from the Meer up to the Pool and the Loch; reducing ﬂows sent to the Wards Island WRRF for treatment •Reduces wet weather ﬂow by 66.7 MGY and Combined Sewer Overﬂow (CSO) discharge by 3.8 MGY, addressing capacity constraints on the wastewater and stormwater infrastructure The Central Park project will recirculate water between the park’s northern bodies, including the Harlem Meer. The Central Park project will recirculate water between the park’s northern bodies, including the Harlem Meer. One Water Beneﬁts ~3,800,000 Gallons per year of reduced combined sewer overﬂow ~480,000 Gallons per day of reduced water consumption MANHATTAN Central Park Ce n t r a l P a r k W e s t Fi f t h A v e 110th St - Central Park North X X The Loch 100th St Pool Montayne’s Rivulet Inﬂow to Pool (to be shut o) North Gate House 2 Reservoir North Gate House 1 Inﬂow thru Manhole in Transverse Road (to be shut o) Stormwater and Gravity Flow of Recirculated Water to Pool Loch Surface Flow Culvert Below Lasker Rink Meer Surface Flow Recirculation Piping within Meerto Improve Water Quality Overﬂow to Combined Sewer for Pre-storm Drawdown of Meer Location for Recirculation Infrastructure (ﬁlters, pumps, and controls) Pool-Loch-Meer recirculation Pool Surface Flow Harlem MeerCentral Park Recirculation Project DEP is partnering with the Department of Parks and Recreation and Central Park Conservancy to construct a system to capture and recirculate stormwater in the Park's northern waterbodies. These waterbodies, the Pool, Loch, and Harlem Meer, are currently fed by City water. City water ﬂows by gravity from the Pool to the Loch and Meer and overﬂows to the City's combined sewer system at the outﬂow of the Meer. By replacing city water with stormwater, this project will reduce potable water demand and reduce combined sewer overﬂows to the East River. In addition, recirculation will improve the water quality of the Park's northern waterbodies. PROJECT STATUS Under Design JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 3332 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 34 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 Wait... App Wait…is at the nexus of demand management and water quality improvement and targets residential water uses that individuals can choose to delay (such as laundry, showers, dishwashing, and toilet ﬂushing). The program works to increase capacity in the combined sewer system during large storm events through voluntary and temporary water conservation. It also engages the community by encouraging residents to understand their connection to water quality in the New York Harbor. Mobile App Functionality •User downloads app, inputs home address or cross streets, and receives real-time Wait… alerts for home sewershed Feedback Communication and Education •App provides positive, real-time feedback on user’s delayed water usage from postponed activities •App includes tabs and links to information on water quality, water conservation, DEP programs and events, and more Behavior Change Nudges and Tracking •App provides information on average water usage rates for typical activities (e.g., laundry) •Users can opt to track and report which activities they delay •App alerts users when heavy rain is occuring, so users can delay activities, or choose to do laundry the day after heavy rain PHASE 1 PHASE 2 One Water Beneﬁts •Improves capacity for wastewater and stormwater infrastructure during rainy days, which can help meet the water quality objective of reducing combined sewer overﬂows (CSO) •Increases public awareness and education about how each person’s actions can improve water quality in local waterways 13 CSO events, June 6 - November 30, 2016 7.2 hours hours average CSO event duration 370 participants (out of 379) completed pilot 5% decrease in consumption from baseline 62 CSO events, April 1, 2018 - May 1, 2019 10.2 hours average CSO event duration 690 participants (out of 700) completed pilot 22% response rate on participant survey; 88% would participate again 22 BROOKLYN MAN H A T T A N QUEENS Newtown Creek Hudson River Flushing Bay Long Island Sound Flushing Creek 495 27 495 Wait... Pilot Program 2016 Phase 1 Participants (379) 2018-2019 Phase 2 Participants (700) Bowery Bay Sewershed Newtown Creek Sewershed JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 35 Aordability and Incentive Programs •Ensures the accessibility and aordability of potable water to low-income communities •Identiﬁes and prevents high water bills caused by leaks •Promotes water conservation by providing incentives to multiple family housing •Ensures the accessibility and aordability of potable water to low-income communities •Identiﬁes and prevents high water bills caused by leaks •Promotes water conservation by providing incentives to multiple family housing Home Water Assistance Program (HWAP) HWAP is an initiative to make water and sewer bills more aordable for low-income homeowners. New York City Homeowners are eligible if their property is a one, two, three or four family home or if they are one of the 50,000 qualiﬁed homeowners who received the Home Energy Assistance Program beneﬁt for 2021-2022 One Water Beneﬁts Water Conservation and Reuse Pilot Program The Water Conservation and Reuse Pilot program provides funding for commercial, industrial, and multi-family residential property owners to install a nonpotable water systems and other eciency measures, which can otherwise cost $50,000 or more on a single private property. Savings Leak Forgiveness: $4M Households Enrolled MCP: 28,000 MWAP: 40,000 HWAP: 66,000 The Leak Forgiveness Program Leaks, if undetected, can add signiﬁcant and unexpected charges to your water bill. This program is designed to provide ﬁnancial relief to customers while also incentivizing water conservation. Insert Caption Multi-Family Conservation Program (MCP) This program provides qualiﬁed multiple-family housing of 4 or more dwelling units with ﬁxed billing charges per unit instead of metered charges. The program promotes water conservation in multiple-family housing, while also giving customers control over their water and wastewater costs. Multi-Family Water Assistance Program (MWAP) Housing Preservation and Development and the Housing Development Corporation assisted aordable multi-family housing projects can receive a $250 credit per residential unit on their water and sewer bill(s) on a limited ﬁrst-come, ﬁrst-served basis. JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 3736 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 Public tour at the Newtown Creek Wastewater Resource Recovery Facility Lorem ipsum priority adaptive adaptive advocacy a ordability beneﬁts community co-beneﬁts collaborative community cso diversity ecosystems holistic energy equity ﬂooding foster growth growth harness healthy climate-change inclusion infrastructure innovative integrating integration onsite optimization partnerships planning rainwater recirculation recovery redevelopment reliability resiliencyconserveintegrated resiliency resources reuse revitalize co n s e r v a t i o n risk society stewardship Stormwater stormwater Strategic sustainability transforming uncertaintywastewater water-cycle water-quality watershed clean Waterways incentive NYC has many diverse stakeholders, and the principles and practices of the people and businesses that make up our dynamic city will play an important role in how we meet our water challenges. As the largest combined water and wastewater utility in the United States, DEP is committed to becoming a nationwide leader in the One Water movement. We will demonstrate the beneﬁts of integrated, holistic planning to our communities through our actions and support of sustainable projects that promote the value of each and every drop of NYC water. It is our vision that this collaborative approach to water management will provide the right combination of strategies to secure a sustainable water future for generations to come. OUR ONE WATER COMMITMENT At its heart, the One Water approach is about diverse stakeholders coming together to advance common-ground solutions to our water challenges. US Water Alliance DEP wants YOUR ideas to shape the future of One Water in NYC. Funding and incentives are currently available through our Water Conservation and Reuse Grant Program and through rate incentives. We hope you will reach out to us with your project ideas and to learn more about whether they may qualify for funding. As part of our commitment to One Water, DEP also invites community feedback. To promote collaboration, foster continual improvement, increase engagement, and identify new programmatic focus areas for DEP’s One Water programs, we encourage you to reach out to us with ideas or projects that help promote water sustainability and assist DEP in identifying future opportunities. What are we doing to address climate change? Will there be enough water for future generations?How can I do my part to conserve water? YOUR PART IN ONE WATER JUNE 2023 | WATER DEMAND MANAGEMENT PLAN 3938 WATER DEMAND MANAGEMENT PLAN | JUNE 2023 Learn more at nyc.gov/dep/onewater