nyc
play

NYC Municipal Separate Storm Sewer System (MS4) 2016 Progress - PowerPoint PPT Presentation

Dec 28, 2023 •147 likes •465 views

NYC Municipal Separate Storm Sewer System (MS4) 2016 Progress Report June 22, 2016 Amended July 28, 2016 Agenda Water Quality in New York City MS4 Permit and Stormwater Management Program Integration between Municipal Separate

  1. NYC Municipal Separate Storm Sewer System (MS4) 2016 Progress Report June 22, 2016 Amended July 28, 2016

  2. Agenda • Water Quality in New York City • MS4 Permit and Stormwater Management Program • Integration between Municipal Separate Storm Sewer System (MS4) Program and Combined Sewer System Overflow (CSO) Long Term Control Plans (LTCPs) • Breakout Sessions • Final Questions and Answers 2

  3. NYC Water Quality Improvement Program The City has invested billions of dollars to improve water quality. Over $10B has been spent since the early 2000s. Today, water quality is the best it has been in over 100 years of testing. 1985 2015 Fecal Coliform Bacteria : < 100 cfu/100 mL 100 – 200 201 – 2,000 >2,000 3 Data from Harbor Survey Program

  4. Stormwater – Brief Background • The Clean Water Act (CWA) regulates stormwater as well as wastewater discharges into the navigable waters of the United States. • Most major cities have been covered by a MS4 permit for a number of years. • Starting in the early 1990s, requirements related to separate storm sewers were included in the permits for the City’s 14 individual wastewater treatment plants. • On August 1, 2015, the New York State Department of Environmental Conservation (DEC) issued a final comprehensive MS4 permit to the City of New York, including more robust requirements similar to those imposed on smaller municipalities in the state under a statewide general permit. • The new MS4 permit significantly expands the City of New York’s obligations to reduce pollutants that discharge to the MS4 system. 4

  5. Municipal Separate Storm Sewer System (MS4) What is an MS4? • A conveyance or system of conveyances; • Owned by a state, city, town, village, or other public entity that discharges to waters of the US; • Designed or used to collect or convey stormwater (including storm drains, pipes, ditches, etc.); • Not a combined sewer; and • Not part of a Publicly Owned Treatment Works (sewage treatment plant). MS4 CSO MS4 CSO 5

  6. MS4 Program Approximately 35-40% of the City is served by separate sewers. Bronx Queens Brooklyn Staten Island Staten Island 6

  7. Contributing Agencies The MS4 Permit is a Citywide Permit  Coordination delegated to DEP by Executive Order No. 429 of 2013  Charter agencies and DOE are obligated to implement and comply 7

  8. Stormwater Management Program (SWMP) Stormwater Management Program (SWMP): is a comprehensive plan that describes how the City will address pollution in stormwater discharges through Best Management Practices (BMPs) and other controls. 1. Public Education and Outreach 8. Industrial and Commercial Stormwater Sources 2. Public Involvement/Participation 9. Control of Floatable and Settleable 3. Mapping Trash and Debris 4. Illicit Discharge Detection and 10. Monitoring and Assessment of Elimination Controls 5. Construction Site Stormwater 11. Reliance on Third Parties Runoff Control 12. Recordkeeping 6. Post-Construction Stormwater Management 13. Annual Reporting 7. Pollution Prevention/Good 14. Annual Report Certification Housekeeping for Municipal Operations and Facilities 8

  9. MS4 Permit Timeline Aug 1, 2015 Aug 1, 2018 Aug 1, 2020 Effective Date of Permit Renewal Submit SWMP Plan to DEC Permit (EDP) 2015* 2016 2017 2018 2019 2020 SWMP Plan Development Implementation Annual Progress Reporting Annual Reporting * - Calendar years NOTE: Draft Annual reports will be presented to the public by July 1 st of each year. A summary of public comments and City responses will be included in the Final Annual Reports. Final Annual Reports will be submitted to DEC by September 30 th of each year and made available to the public. 9

  10. Public Education and Outreach Public Education Public education and outreach activities will be promoted and publicized in order to and Outreach facilitate public awareness of water quality impacts associated with discharges from the MS4. Current Tasks and Next Steps • Create partnerships internally and externally for current & future programs and events • Incorporate MS4 topics into existing messaging • Develop a prioritization schedule and timeline for providing MS4 content • Register and attend various programs Environmental Education Day and community events 10

  11. Public Involvement/Participation The City will continue to develop the Public Involvement/Participation Program by involving, consulting and collaborating with the public in various ways, and in the decision-making process to ensure public concerns and aspirations are understood and considered consistently. Current Tasks and Next Steps • Keep stakeholders informed and updated on the SWMP development • Work with stakeholders to develop public programs and events • Seek feedback on relevant drafts and proposals • Work to formulate solutions that Public Meeting incorporate stakeholder advice and recommendations to the maximum extent possible 11

  12. Mapping A Geographic Information System (GIS) based map will depict all MS4 outfalls and contributing drainage areas. Current Tasks and Next Steps • Delineate MS4 drainage boundaries based on DEP sewer network • Identify connections downstream of regulators • Compile information to identify MS4 drainage areas and outfalls on City properties Draft Municipal Separate Sewer System (MS4) Map 12

  13. Illicit Discharge Detection and Elimination (IDDE) The IDDE Program is an existing program that detects and eliminates non- stormwater discharges into the MS4. Current Tasks and Next Steps • Identify prioritization strategies to enhance current IDDE program Sentinel Monitoring • Coordinate citywide to address Stations illicit discharges connections New York Harbor Sentinel Monitoring Stations 13 13

  14. Construction and Post-Construction Both Construction Site Stormwater Runoff Control and Post-Construction Stormwater Management requirements apply to site development and redevelopment activities that result in a land disturbance of ≥1 acre. This threshold may be reduced following a study. Current Tasks and Next Steps • Finalize scope and complete the Lot Size Soil Disturbance Threshold Study • Develop SWPPP review process for Construction/Post-Construction Stormwater Management requirements • Schedule construction site visits to assess potential for implementation of stormwater management practices • Hire an MS4 Permitting Director (position is currently posted at NYC jobs) Example of Construction Site Stormwater Runoff Controls (U.S. EPA) 14

  15. Construction and Post-Construction Construction and Post- Permit Requirements Construction Stormwater Pollution Prevention Plan Reviews (SWPPP) • Incorporate controls for erosion and sediment control requirements during construction • Incorporate structural stormwater controls for expected water quality improvements and to meet the stormwater management design manual Inspection and Enforcement • Maintain an inventory of active construction sites and post-construction stormwater management practices • Inspect and enforce control measures Training and Education GRTA Green Roof Project at 689 Myrtle Avenue, Brooklyn, NY • Require training for individuals performing SWPPP reviews/inspections as well as construction managers/site operators 15

  16. Lot Size Soil Disturbance Threshold Timeline Task 1: Literature Survey Task 2: Threshold Size Analysis Task 3: Cost-Benefit/Water Quality Analysis Aug 1, 2018 Submit SWMP Plan to DEC Aug 1, 2015 Study recommendations and EDP additional feasible steps Start Date submitted with SWMP plan 2015 2016 2017 2018 SWMP Plan Development Study – Task 1 Study – Task 2 Study – Task 3 Incorporate Study into SWMP 16

  17. Pollution Prevention/Good Housekeeping The Pollution Prevention/Good Housekeeping for Municipal Operations and Facilities Program will address, at sites where the City has operational control, municipal operations that contribute or can potentially contribute pollutants of concern to the MS4. Current Tasks and Next Steps • Develop list of Stormwater Control Measures (SCMs) applicable to municipal operations and facilities • Create a protocol to assess municipal facilities and operations • Meet to discuss and develop protocols Paerdegat Basin Upgrade to implement SCMs, Standard Operating Procedures (SOPs), facility assessments and staff training 17

  18. Industrial and Commercial Stormwater Sources The Industrial and Commercial Stormwater Sources Program, which addresses the discharge of pollutants of concern (POCs) to the MS4 from industrial and commercial sites/sources, includes maintenance of a facility inventory and an inspection and enforcement program. Current Tasks and Next Steps • Conduct web-based analysis to refine facility inventory for initial and ongoing inspections • Establish prioritization parameters • Identify sites in separate sewer and overland flow areas Scrap Metal Processor at Newtown Creek - Brooklyn, NY • Develop procedure by August 1, 2018 to inspect Multi-Sector General Permit (MSGP) permitted facilities and unpermitted facilities 18

Recommend

More recommend