New York City Department of Environmental …

1 New york city Department of Environmental protection long -Term Watershed protection Plan December 2016 Vincent Sapienza, , Acting Commissioner Paul V. Rush, , Deputy Commissioner Bureau of Water Supply Introduction i Table of Contents Table of Contents .. i List of Figures .. iii List of Tables .. v List of Acronyms .. viii Acknowledgements .. xi 1. 1 Water Supply System Overview .. 3 Regulatory Context .. 5 New york city s Source Water protection Program for the Catskill/Delaware Systems .. 7 Assessing the Potential Threats to the Water Supply .. 7 Highlights of the Watershed protection Program.

2 8 Water Quality Conditions .. 12 DEP's long -Term Program .. 16 2. long -Term Watershed protection Program .. 19 Filtration Avoidance Criteria Requirements .. 19 Environmental Infrastructure .. 22 Septic and Sewer Programs .. 22 Community Wastewater Management Program .. 25 Stormwater Program .. 27 protection and Remediation Programs .. 29 Waterfowl Management Program .. 29 Land Acquisition .. 31 Land Management .. 34 Watershed Agricultural Program .. 36 Watershed Forestry Program .. 40 Stream Management Program .. 42 Riparian Buffer protection Program .. 48 Ecosystem protection Program.

3 50 long -Term Watershed protection Program ii Nonpoint Source Pollution Strategy for East of Hudson Catskill/ Delaware 54 Kensico Water Quality Control and Related Programs .. 56 Catskill Turbidity Control .. 58 Watershed Monitoring, Modeling, and GIS .. 62 Watershed Monitoring Program .. 62 Multi-Tiered Water Quality Modeling Program .. 64 GIS Program .. 66 Regulatory Program .. 69 Watershed Rules and Regulations and Other Enforcement/ Project Review .. 69 WWTP Compliance and 71 Catskill/Delaware Filtration Plant Design .. 73 Waterborne Disease Risk Assessment Program .. 74 Administration.

4 75 Education and Outreach .. 77 79 Introduction iii List of Figures Figure Map of the New york city water supply system..2 Figure New york city consumption projection..3 Figure Map showing status of the partnership programs West of Hudson..10 Figure Map showing status of the partnership programs East of long -Term Watershed protection Program iv Introduction v List of Tables Table Filtration Avoidance Criteria Requirements .. 19 Table Filtration Avoidance Criteria Reporting 21 Table Septic Remediation and Replacement Program Planned Activities/ Milestones .. 22 Table Small Business Program Planned Activities/Milestones.

5 23 Table Cluster System Program Planned Activities/Milestones .. 23 Table Septic Maintenance Program Planned Activities/Milestones .. 24 Table Sewer Extension Program Planned Activities/Milestones .. 24 Table Alternate Design Septic Program Planned Activities/Milestones .. 24 Table Septic and Sewer Program Reporting Milestones .. 25 Table Status of Community Wastewater Management Program projects .. 25 Table Community Wastewater Management Program Planned Activities/Milestones .. 26 Table Community Wastewater Management Program Reporting Milestones .. 27 Table Future Stormwater Controls Programs Planned Activities/Milestones.

6 28 Table Stormwater Retrofit Program Planned 28 Table Stormwater Programs Reporting Milestones .. 29 Table Waterfowl Management Program Planned Activities/Milestones .. 31 Table Waterfowl Management Program Reporting Milestones .. 31 Table Land Acquisition Program Planned Activities/Milestones .. 33 Table Land Acquisition Program Reporting Milestones .. 34 Table Land Management Program Planned 35 Table Land Management Program Reporting Milestones .. 36 Table Watershed Agricultural Program Planned Activities/Milestones .. 37 Table Watershed Agricultural Program Reporting Milestones.

7 39 Table Watershed Forestry Program Planned Activities/Milestones .. 41 Table Watershed Forestry Program Reporting Milestones .. 41 Table Stream Management Program Planned Activities/Milestones .. 44 long -Term Watershed protection Program vi Table Stream Management Program Reporting Milestones .. 47 Table Riparian Buffers protection Program Planned Activities/Milestones .. 49 Table Riparian Buffers protection Program Reporting Milestones .. 50 Table Ecosystem protection Program Planned Activities/Milestones .. 53 Table Ecosystem protection Program Reporting Milestones .. 53 Table East-of-Hudson Nonpoint Source protection Program Planned Activities/Milestones.

8 55 Table East-of-Hudson Nonpoint Source protection Program Reporting Milestones .. 56 Table Kensico Water Quality Control Program Planned 57 Table Kensico Water Quality Control Program Reporting Milestones .. 57 Table Catskill Turbidity Control Planned Activities/Milestones .. 60 Table Catskill Turbidity Control Reporting Milestones .. 61 Table Watershed Monitoring Program Planned Activities/Milestones .. 63 Table Watershed Monitoring Program Reporting Milestones .. 63 Table Multi-Tiered Modeling Program Planned Activities/Milestones .. 65 Table Multi-Tiered Modeling Program Reporting Milestones.

9 66 Table GIS Program Planned Activities/Milestones .. 68 Table GIS Program Reporting Milestones .. 68 Table Watershed Rules and Regulations Planned Activities/Milestones .. 70 Table Watershed Rules and Regulations Reporting Milestones .. 71 Table Wastewater Treatment Plant Compliance and Inspection Program Planned Activities/Milestones .. 72 Table Wastewater Treatment Plant Compliance and Inspection Program Reporting Milestones .. 72 Table Catskill/Delaware Filtration Plant Design Planned Activities/Milestones .. 74 Table Catskill/Delaware Filtration Plant Design Reporting Milestones .. 74 Table WDRAP Planned Activities/Milestones.

10 75 Table WDRAP Reporting 75 Table Administration Program Planned Activities/Milestones .. 76 Introduction vii Table Administration Program Reporting Milestones .. 76 Table Education and Outreach Program Planned Activities/Milestones .. 77 Table Education and Outreach Program Reporting Milestones .. 78 Table List of Reoccurring Reports .. 79 Table List of Significant One-time Reports .. 81 long -Term Watershed protection Program viii List of Acronyms AUV autonomous underwater vehicle AWSMP Ashokan Watershed Stream Management Program BMP best management practice BODR Basis of Design Report CAT/DEL Catskill/Delaware CATUEC Catskill Upper Effluent Chamber CDIC Catskill/Delaware Interconnection Chamber CDUV Catskill/Delaware Ultraviolet Disinfection Facility CE conservation easement CP Forest Management Plan Conservation Practices CREP Conservation Reserve Enhancement Program CRISP Catskill Regional Invasive Species Partnership CSBI Catskill Streams Buffer