New York City Department of Environmental …

1 New york city Department of Environmental protection filtration avoidance annual Report for the period January 1 through December 31, 2016 Vincent Sapienza, , Acting Commissioner Paul V. Rush, , Deputy Commissioner Bureau of Water Supply Cover photo by Kristen Artz, NYCDEP(View of the gorge below the Ashokan Reservoir spillway)Table of Contents i Table of Contents List of Figures .. v List of Tables .. vii List of Acronyms .. viii .. and State Objective Water Quality Compliance .. Surface Water Treatment Rule Monitoring and Reporting.

2 5 Raw Water Fecal Coliform Concentrations (40 CFR Section (a)(1)).. 5 Raw Water Turbidity (40 CFR Section (a)(2)) .. 6 Entry Point Chlorine Residual (40 CFR Sections (b)(1)(iii) and (a)(3)) .. 6 Distribution System Disinfection Residuals (40 CFR Sections (b)(1)(iv) and (a)(4)) .. 7 Trihalomethane Monitoring (40 CFR Section (b)(6) and HAA5 Monitoring (40 CFR Section )) .. 7 Total Coliform Monitoring .. 8 Monthly Coliform Monitoring (40 CFR Section (b)(5)) .. 8 Chlorine Residual Maintenance in the Distribution System.

3 8 Infrastructure .. Septic Programs .. 9 Septic Rehabilitation and Replacement Program .. 9 Septic Maintenance Program .. 9 Other Septic Programs .. 9 Community Wastewater Management Program .. 10 Sewer Extension Program .. 11 Stormwater Programs .. 12 Stormwater Cost-Sharing Programs .. 12 Stormwater Retrofit Program .. 15 and Remediation Programs .. Waterfowl Management Program .. 18 2016 BWS FAD annual Report ii Land Acquisition .. 18 Solicitation/Resolicitation.

4 19 Purchase Contracts in the Catskill/Delaware System .. 19 Transfer of Conservation Easements on Fee Acquisitions to New york State .. 23 Technical Program Improvements .. 23 NYC-Funded Flood Buyout Program .. 23 Federal Emergency Management Agency (FEMA) 2012 Buy-Out Program .. 24 Streamside Acquisition Program .. 24 Water Supply Permit .. 24 Cooperative Activities with Land Trusts .. 25 Land Management .. 26 Management of Water Supply Lands and Conservation Easements .. 26 Beneficial Use.

5 28 Forest Management .. 33 Invasive Species Management .. 34 Watershed Agricultural Program .. 36 Watershed Forestry Program .. 38 Forest Management Planning and Stewardship .. 39 Stream Management Program .. 40 Stream Management Plans and their Implementation .. 41 Flood Hazard Mitigation Program .. 43 Stream Studies .. 44 Stream Projects .. 45 Riparian Buffer protection Program .. 49 Activities on city -owned or Controlled Land .. 49 Catskill Stream Buffer Initiative.

6 50 Wetlands protection Program .. 54 Permit Review .. 54 Land Acquisition .. 57 Wetland 59 Table of Contents iii Wetland Monitoring .. 59 DEP Forest Management Program .. 59 Education and Outreach .. 59 East of Hudson Non-Point Source Pollution Control Program .. 60 Wastewater-Related Nonpoint Source Pollution Management Programs .. 60 Stormwater-Related Nonpoint Source Pollution Management Programs .. 60 Stormwater Facility Inspection and Maintenance .. 61 Croton Falls/Cross River Funding Program.

7 61 Kensico Water Quality Control Program .. 61 Wastewater-Related Nonpoint Source Pollution Management Programs .. 61 Stormwater Management and Erosion Abatement 62 Other Watershed Programs .. 64 Catskill Turbidity Control .. 67 Implementation of Catskill Turbidity Control Alternatives .. 67 5. Watershed Monitoring, Modeling, and GIS .. 70 Watershed Monitoring Program .. 70 Routine Water Quality Monitoring .. 70 Additional Water Quality Monitoring .. 71 Wastewater Treatment Plant Protozoan Monitoring.

8 72 Water Quality Reports .. 75 Multi-Tiered Water Quality Modeling Program .. 76 Geographic Information System .. 76 GIS Technical Support .. 76 Completion or Acquisition of New GIS Data Layers and Aerial Products .. 77 GIS Infrastructure Improvement .. 79 Data Dissemination to Stakeholders .. 80 6. Regulatory 81 Project Review .. 81 SEQRA Coordination .. 84 Delegation Agreements .. 87 Enforcement Activities .. 87 2016 BWS FAD annual Report iv Wastewater Treatment Plant Compliance and Inspection Program.

9 88 Sampling of WWTP Effluents .. 90 7. In- city Programs .. 92 Waterborne Disease Risk Assessment Program .. 92 Cross Connection Control Program .. 93 8. Education and Outreach .. 96 9. Miscellaneous Reporting Provisions .. 99 Water Conservation/Demand Management .. 99 Water Demand Management Plan .. 100 Updates to Drought Management Plan .. 103 Delaware Aqueduct Leak .. 104 References .. 106 List of Figures v List of Figures Figure New york city East of Hudson watershed protection and partnership programs as of December 2016.

10 3 Figure New york city West of Hudson watershed protection and partnership programs as of December 2016.. 4 Figure Positive fecal coliform samples, Kensico-Delaware System, 2010-2016.. 6 Figure Delaware source water turbidity, January 1, 2016-December 31, 2016.. 7 Figure Total coliforms sampled in NYC distribution system, 2012-2016.. 8 Figure Installation of Orenco treatment units in Lexington.. 10 Figure Installation of storage units in South Kortright.. 11 Figure Percent of land protected in each Catskill/Delaware basin by real estate type.