Developing Geographical And Sectoral Water Use Profiles Of NYC Water Demand


  • Lisa R. Krentz, Jack C. Kiefer - Hazen and Sawyer
  • Vlada Kenniff - NYCDEP

Through their Water for the Future Demand Management program, the New York City Department of Environmental Protection (DEP) is developing demand management strategies to help ensure that sufficient water will be available during construction activities associated with the repair of the Delaware Aqueduct scheduled to occur in 2020. The primary objectives of this project are to assess demand reduction potential and identify water conservation strategies that can be used to effectively reduce water use as needed across various types of government buildings/facilities and large users.

As part of Water for the Future Demand Management Program, geographical and sectoral water use profiles were developed in support of these strategies. Metrics, or performance indicators, used to assess the rate of water use over a given period of time at a given level of aggregation were developed and used to characterize and compare DEP water customers. DEP customer water consumption data, aligned with New York City Department of City Planning (DCP), Maps of Primary Land Use Tax Lot Output (MapPLUTO), served as primary data sources used to define water use metrics, develop water use profiles and assess seasonal water use patterns in support of strategies being developed.

This presentation will discuss the aggregation procedures and analytical uses of DEP’s automated meter reading (AMR) data and DCP MapPLUTO data to achieve the following primary objectives:
1. Develop metrics used to assess the rate of water use
2. Analyze geographical and sectoral cross sections of in-city demand
3. Assess seasonal water use patterns and time-series trends in water use
4. Evaluate predominance of specific user types among large user rankings
5. Develop up-to-date large users list / customer type profiles
6. Assess large users potential conservations strategies / demand reduction potential

The DEP provides 1.2 billion gallons of water to about 9 million people in the five boroughs of New York City and to many upstate communities. The Delaware Aqueduct, supplying more than 50 percent of the city’s the total daily demand, is experiencing significant leakage (15 to 35 mgd) and repairs are expected to take between 6 to 8 months. The Water for the Future Demand Management goal is to achieve a 5% citywide reduction from current demand to help ensure sufficient and reliable supplies during this time.

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