New York City MS4 Permit Activities Annual Conference. Florida Stormwater Association

Transcription

1 New York City MS4 Permit Activities Florida Stormwater Association 2017 Annual Conference Floren Poliseo, MS4 Program Manager, NYC DEP Scott McClelland, Vice President, CDM Smith Inc. Acknowledge Support of: Pinar Balci, Assistant Commissioner, NYC DEP

2 Separated Sewers Versus Combined Sewers Separate Sewer System Combined Sewer System 2

3 New York City Sewer Systems 60% Combined Sewer System CSO Long-Term Control Plans (LTCPs) CSO Order on Consent 30-40% Separate Sewer System MS4 Stormwater Management Program (SWMP) Plan 1st MS4 Permit Effective August 1,

4 Impaired Waters & Pollutants of Concern Floatables Pathogens Nutrients (N & P) 4

5 Program Elements of MS4 Permit Administration and Legal Authority Public Education and Outreach Public Involvement/Participation Mapping Illicit Discharge Detection and Elimination (IDDE) Construction Site Stormwater Runoff Control Post-Construction Stormwater Management Industrial and Commercial Stormwater Sources Control of Floatable and Settleable Trash & Debris Monitoring and Assessment of Controls Special Conditions for Impaired Waters Pollution Prevention/Good Housekeeping for Municipal Operations and Facilities (PP/GH) 5

6 Public Involvement/Participation Public Meetings During Preparation and Implementation of SWMP Plan 6 Regular SWMP development updates Stormwater Advisory Group (public and stakeholder feedback) NY State Department of Environmental Conservation (DEC, regulator) Stormwater Controls Working Group (all NYC agencies with obligations under the MS4 Permit) Stakeholder Involvement in Developing New Requirements Development community (engineers, architects, developers, construction) Environmental organizations Private industrial/commercial property owners and users Community Group Involvement in Waterbody-Specific Planning Workshops Public Review and Comment Periods Progress Reports (during SWMP development) SWMP Plan itself Annual Reports (following SWMP approval)

7 Mapping Example Coney Island Creek Number of Outfalls DEP CSO Outfall DEP MS4 Outfall NYS DOT Outfall Near Shore Point Source Combined Sewers 24% drainage areas 5% annual wet weather discharge volume 7

8 Construction & Post-Construction Controls State post-construction requirements (current) Limited applicability in the City ( 1 acre disturbance) MS4 requirements (new for NYC to perform) SWPPP reviews, approvals, inspections and enforcement Post-construction stormwater management practices inventory Long-term operation & maintenance agreements Lot Size Soil Disturbance Threshold Study Determine appropriate reduced threshold (< 1 acre) Components of study: Literature/utility survey of other municipalities Threshold size analysis Cost-benefit and water quality analysis Stakeholder engagement 8

9 Industrial and Commercial Controls Notifications to owners/operators Permitted sites: State Multi-Sector General Permit (MSGP) Initial inventory provided by State Prioritization (high, medium, low) Inspection for compliance (1, 3, 5-year cycles based on prioritization) Enforcement Unpermitted sites Initial inventory created from multiple data sources (> 4,000 sites) Screened by DEP to weed out duplications, non-contributors such as home business headquarters, etc. (~1,300 sites) Inspection, and report to DEC if SPDES permits may apply Add to permitted site inspections inventory if MSGP obtained 9

10 Floatable & Settleable Trash and Debris NYC public engagement programs Clean-up events Adopt-A-Catch Basin, Adopt-A-Basket, Adopt-A-Highway/Greenway BYO, Water-on-the-Go Retailers Plastic Bag Challenge Don t Trash Our Waters media campaign (new, from MS4 requirement) Trash loading rate determination Review Programs from Other Cities Work Plan (draft due August 2017, final due with SWMP) Study to commence within 2 years of Plan approval NYC institutional controls and initiatives Catch basin inspection/cleaning, and hoods Street sweeping Nets/booms 0x30 (zero waste to landfills by the year 2030) Styrofoam Bill (failed) 10

11 Floatables End-of-Pipe Control Trash and debris reaching end-of-pipe controls has decreased from peak in 2007

12 Floatables Street Cleanliness Streets in NYC are generally cleaner than they were in the 70s, 80 s and 90 s

13 Floatables Media Campaign Surf Ave. Fence Ad 13

14 Floatables Bus Shelter & Sanitation Truck Ads 14

15 Special Conditions for Impaired Waters No Net Increase in loading of Pollutants of Concern (POCs) sites with 1 acre disturbance and increase in impervious area Incorporate pollutant load analysis in Stormwater Pollution Prevention Plans (SWPPPs) review process Priority MS4 Waterbodies and Waterbody-Specific Plans Enhanced SWMP efforts Source categorization and targeting Identification of additional or customized non-structural BMPs for each SWMP control measure and implementation schedule Green infrastructure pilot projects and other structural retrofits 15

16 Pollution Prevention and Good Housekeeping (PP/GH) Inventory Over 1,000 Facilities and Operations Data & desktop screening process Prioritization of sites (high, medium, low risk) Facilities & Operations Assessments High priority sites to be completed within 3 Years of EDP Initial assessments by DEP (with contractor) Initial training provided by DEP (with contractor) SCMs implementation and ongoing self-assessments by owner agencies Green Infrastructure Consider and if feasible and cost-effective incorporate green infrastructure during planned municipal upgrades 16

17 PP/GH Preliminary Screening Process Approx. 1,000 sites evaluated Two processes developed: Preliminary Site Screening Preliminary Prioritization Protocol Preliminary Site Screening process (pictured left) used to review City agency provided data/information on key operations to justify full prioritization via protocol Key operations included vehicle maintenance/ fueling and bulk storage of materials 17

18 PP/GH Prioritization Protocol Likelihood Criteria (based on available data) Assessment Date - May 25, Outdoor Material Handling or Exposure 1 Likelihood 5.0 Rating (Weighting x Operation of Concern4.5 Score) 4.0 CRITERIA WEIGHTING Vehicle/Fleet/Equipment Operations Storage Facilities Waste Management Constituents 1 of Concern: Consequence Rating Activity Frequency 2 Pathogens Discharge Frequency w/o Treatment/Control 3 Example Graphic Display of 25 Facility Potential Impact Scores 1 Floatables Nitrogen Phosphorus Proximity to Impaired Water 4 Sediment On-Site Trained Staff 5 Relative Quantity Handled or Discharged 1 Pollutants of Concern Other Pollutants of Interest Oil & Grease Hazardous Materials Deicers Herbicide/Pesticide Normalized Likelihood Rating (Scale of 0 to 5; low to high) Normalized Consequence Consequence Rating Rating (Weighting x (Scale of 0 to 5; Operation of Concern Score) low to high) CRITERIA WEIGHTING Vehicle/Fleet/Equipment Operations L H L L M M M L N N N N Storage Facilities I L L L L M L L N N N N Likelihood Rating Waste Management L M L L L N N N N N N N Process Waste Leachate Vegetation Waste Notes 1. Definitions and Scores: High (5) = H, Medium (3) = M, Low (1) = L, Insignificant (0) = I, Not Applicable (0) = N 18

19 PP/GH Prioritization Protocol Results 19 1,031 sites initially reviewed 396 Sites Assigned as Medium and 415 Sites Assigned as Low Priority Based on Preliminary Screening 220 Sites Assessed Using Full Prioritization Protocol High: 11 Facilities (Rating of 4 or 5) Medium: 135 Facilities (Rating of 3) Low: 74 Facilities (Rating of 1 or 2) Agency Sites Assessed Number of Sites with Protocol Rating 1 Rating 2 Rating 3 Rating 4 Rating 5 DSNY DOT DPR DOE FDNY DCAS DEP EDC-SBS NYPD DOC Total

20 Due to Storage Facilities Operations/Facilities for DSNY 79 Sites/Operations Prioritized 20

21 PP/GH Preliminary Prioritization Results Agency Number of Sites Low Priority Medium Priority High Priority DCAS DEP DOC DOE DOT DPR DSNY FDNY NYPD Grand Total

22 MS4 Permit Requirement Schedule 22

23 Questions? I think I can I think I can! 23