Chesapeake Bay Pollution Reduction Plan Instructor: Julie Schneider, - - PowerPoint PPT Presentation

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Chesapeake Bay Pollution Reduction Plan Instructor: Julie Schneider, - - PowerPoint PPT Presentation

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan Instructor: Julie Schneider, Watershed Planner CWP Bryan Seipp, Watershed Manager, CWP Ruth Hocker, PA Senior Scientist CBF June 10, 2014 1 PA

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Chesapeake Bay Pollution Reduction Plan

Instructor: Julie Schneider, Watershed Planner CWP Bryan Seipp, Watershed Manager, CWP Ruth Hocker, PA Senior Scientist CBF

June 10, 2014

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 3

Chesapeake Bay Foundation

  • Largest and oldest non-profit dedicated to restoring

the Chesapeake Bay and its tributary rivers and streams

  • Environmental education for adults and

schoolchildren in PA, MD and VA

  • Advocacy at the local, state and federal level, and

help for communities

  • Restoration program for filters: forested stream

buffers, oysters, etc.

  • www.cbf.org
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 4

Center for Watershed Protection

  • Stormwater and watershed

guidance documents

  • National MS4 Expertise
  • Hands-on technical assistance
  • www.cwp.org
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 5

Presentation Overview

  • Introduce the Chesapeake Bay Pollution Reduction Plan
  • How to develop a Plan using PA DEP’s 4 step process
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 6

Chesapeake Bay TMDL

  • A pollution diet for a local

waterbody.

  • TMDL=
  • Wasteload allocations (MS4

system, WWTP, industrial point sources) +

  • Load allocations (septic,

agriculture) +

  • Margin of safety
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 7

PA DEP Requirements for Section B: Chesapeake Bay Pollution Reduction Plan

Four Steps:

  • 1. Narrative of MS4
  • 2. Incorporate GI/LID/ESD into municipal infrastructure

upgrades

  • 3. Estimate current pollutant loads (optional)
  • 4. Identify TMDL control measures

PA DEP Document 3800-FM-BPNPSM0493 8/20/13

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 8

Step 1. Narrative of MS4

Drainage area of MS4 within the UA discharging to the Chesapeake Bay Watershed:

  • 1. Pervious and impervious cover (%)
  • 2. Land use (acres)
  • 3. Stream miles (note impaired streams) (linear feet)

*Sources of GIS data included on resource sheet

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 9

Step 1. Narrative of MS4

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 10

Step 1. Narrative of MS4

*Use local data when available

Data Source Impervious Cover Chesapeake Bay Program Land Use USGS National Land Cover Database Streams PASDA Boundary layers (municipal, county boundary, etc.) PASDA, CBP Urbanized Area U.S. Census Bureau

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 11

Step 1. Narrative of MS4

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Step 1. Narrative of MS4

  • Other information to include:

– Areas not included

  • Large federal facilities (not responsible for)
  • Other permitted entities

– Watersheds and tributary streams in MS4 – High quality areas – Protected lands – Population stats – Other relevant information

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Army Depot in Fairview Township

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 14

Chesapeake Bay Pollution Prevention Plan (CBPRP)

Four Steps:

  • 1. Narrative of MS4
  • 2. Incorporate GI/LID/ESD into municipal infrastructure

upgrades

  • 3. Estimate current pollutant loads (optional)
  • 4. Identify TMDL control measures
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 15

Step 2. Incorporate GI/LID/ESD into Municipal Infrastructure Upgrades

  • Green Infrastructure (GI)
  • Low Impact Development (LID)
  • Environmental Site Design (ESD)
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 16

Step 2. Incorporate GI/LID/ESD into Municipal Infrastructure Upgrades

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 17

Step 2. Incorporate GI/LID/ESD into Municipal Infrastructure Upgrades

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

  • Example I

– Street Widening project on Main Street

  • Options Considered

– Bioretention – Porous Pavement

  • Considerations

– On-street Parking – Mature Trees

  • Result

– Neither option is feasible here because most residences do not have driveways and loss of parking for street scape bioretention is not acceptable to community. – Potential damage to large mature trees during construction and concerns of clogging due to leaf litter result in porous pavement being unacceptable.

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

  • Example II

– New Township Park

  • Options Considered

– Bioretention in parking lot – Stream restoration with floodplain connection and forest buffer

  • Considerations

– Costs – Permits – Construction timeline

  • Result

– Bioretention will be implemented along the down slope perimeter of the parking lot as well as in the parking lot islands – Stream restoration will occur in phases with phase 1 occurring at the time of park development and phases 2 and 3 occurring in subsequent years. 19

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 20

Chesapeake Bay Pollution Prevention Plan (CBPRP)

Four Steps:

  • 1. Narrative of MS4
  • 2. Incorporate green infrastructure into municipal

infrastructure upgrades

  • 3. Estimate current pollutant loads (optional)
  • 4. Identify TMDL control measures
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 21

Step 3. (Optional) Estimate Current Pollutant Loads

Benefits:

  • 1. Provide a baseline pollutant load for your municipality
  • 2. Account for what you and your partners (watershed groups,

schools, etc) have done

  • 3. Have a better understanding of current rate of progress.
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 22

Step 3. (Optional) Estimate Current Pollutant Loads

  • Modeling programs
  • MapSheds (GWLF)- PSU
  • www.mapshed.psu.edu/
  • Chesapeake Assessment and Scenario Tool (CAST)- CBP
  • www.casttool.org
  • Others
  • Watershed Treatment Model
  • http://www.cwp.org/online-watershed-library/
  • See CBF webcast on modeling
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Data requirements

  • Minimum

– BMP type and acres treated (or area for land-use change BMPs)

  • Better

– BMP type, acres treated and % impervious

  • Best

– BMP type, acres treated, % impervious, land use type, and amount of runoff retention (i.e. 1”, 2.5”, etc.)

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 24

Step 3. (Optional) Estimate Current Pollutant Loads

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 25

Summary of Reported BMPs Installed from 2007-2014 BMP Type Impervious Drainage Area (Acres) Pervious Drainage Area (Acres) Acres Linear Feet Stream Restoration 5,000 Forest Buffer 5.00 Wet Pond/Wetland 40 50

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 26

Step 3. (Optional) Estimate Current Pollutant Loads

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 27

Chesapeake Bay Pollution Prevention Plan (CBPRP)

Four Steps:

  • 1. Narrative of MS4
  • 2. Incorporate green infrastructure into municipal

infrastructure upgrades

  • 3. Estimate current pollutant loads (optional)
  • 4. Identify TMDL control measures
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 28

Step 4. Identify TMDL Control Measures

Identify TMDL control measures and include:

  • 1. Location of BMPs (latitude/longitude, street name, other)
  • 2. Implementation schedule including interim milestones
  • 3. BMP pollutant reduction for N, P and/or Sediment
  • 4. Rationale for selecting the BMP
  • 5. BMP Inspection, operation and maintenance
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 29

Location of BMPs

  • Existing Resources:

Watershed plans, stream assessments, etc.

  • Conduct Field

Assessments:

  • pportunities at

public lands, public sites needing upgrade

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 30

TMDL Control Measures

1. Establish and Protect Riparian Forest Buffers – restore vegetated buffer areas 2. Disconnection Program – Disconnect impervious areas from your regulated small MS4 system 3. Tree Planting – Plant trees within the area that drains to the regulated small MS4. 4. Construct Recharge / Infiltration Facilities 5. Stormwater Basin Retrofits – Naturalize or modify for extended detention, and/or modify basins for increased infiltration 6. Restore Stream banks – Restore and/or stabilize degraded and eroded stream banks 7. Establish Green Infrastructure at Facilities that are owned by the municipality and that drain to the regulated small MS4 8. Develop and implement additional provisions to address TMDLs or a separate MS4 TMDL Stormwater Management Ordinance 9. Participate in an approved Trading and Offset Program

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 31

Location of BMPs

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 32

Project ID Jurisdiction/ Party Project Name Project Type Latitude Longitude

1 City of Yellow Main Street Greenway Bioretention 39.966512

  • 76.719948

2 East Township Baseball Fields Bioretention 40.013022

  • 76.593407

3 Main Township Main Township Municipal Complex Bioretention 40.021230

  • 76.752979

4 West Main Township Summer Park Bioretention 39.968734

  • 76.801098

5 Hamish Township Broad Street Bioswale 40.029241

  • 76.615090

6 Spring Valley Township Michigan Ave Pond Retrofit 39.942421

  • 76.727789
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 33

Location of BMPs

Project ID Jurisdiction/Party Project Name Project Type Represented As Type Latitude Longitude 1City of York Broad Street Greenway Bioretention Bioretention 39.966512

  • 76.719948

2Hellam Township Barshinger Fields Bioretention Bioretention 40.013022

  • 76.593407

3Manchester Township Manchester Township Municipal Complex Bioretention Bioretention 40.021230

  • 76.752979

4West Manchester Township Sunset Park Bioretention Bioretention 39.968734

  • 76.801098

5Hellam Township Ore Bank & Spring Rd Bioswale Bioswale 40.029241

  • 76.615090

6Spring Garden Township Virginia Ave Step Pool Conveyance Bioswale 39.942421

  • 76.727789

7York Township MD & PA CG trail extension Bioswale Bioswale 8City of York Rail Trail (Market-Kings Mill) Porous Pavement Pervious Pavement 39.945070

  • 76.742459

9Fairview Township Pinetown Road-Bike/Ped area Pervious Pavement Pervious Pavement 10York Township Mill Creek Preserve- Parking Lot Porous Pavement Pervious Pavement 39.945222

  • 76.661865

11York Township York Township Park- Parking Lot/Trail porous Pavement Pervious Pavement 39.922073

  • 76.679483

12City of York York City Industrial Park Pond Retrofit Pond Retrofit 39.983600

  • 76.750500

13Dover Township Wyngate Basin Pond Retrofit Pond Retrofit 39.983333

  • 76.839722

14Dover Township Dover Township Community CenterPond Retrofit Pond Retrofit 39.979444

  • 76.837500

15Fairview Township Emily Lane Stormwater Pond Pond Retrofit Pond Retrofit 40.18

  • 76.84

16Hellam Township 102 Chelsea Way Pond Retrofit Pond Retrofit 40.025035

  • 76.626763

17Manchester Township I-83 Basin Pond Retrofit Pond Retrofit 40.040252

  • 76.746611

18Shrewsbury Township Deer Creek Initiative- Grace Church Pond Retrofit #1 Pond Retrofit 39.766448

  • 76.667039

19Shrewsbury Township Deer Creek Initiative- Grace Church Pond Retrofit #2 Pond Retrofit 39.770254

  • 76.668628

20Shrewsbury Township Deer Creek Initiative- Giant Food Pond Retrofit #3 Pond Retrofit 39.772058

  • 76.668946
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 34

Calculate Pollutant Load Reduction

  • Determine Land Use Load rate from CAST or MapSheds
  • Calculated using % pollutant load reduction % from CAST

Model for N, P and TSS

  • Stream restoration and street sweeping pollutant load

reductions from Bay Program and expert panels

  • PA BMP manual currently being updated
  • Local data on stream restoration
  • Optional- Calculated planning level cost data for each BMP

(King and Hagan, 2011)

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Land-use Loading Rate

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Land-Use Loading for TN

Landuse Acres Lbs Nitrogen Lbs/ac TN Lbs Nitrogen Lbs/ac TN Edge of Stream EOS Delivered DEL regulated impervious developed 26,092.10 814,582.10 31.22 572,854.00 21.96 regulated pervious developed 78,853.40 1,565,997.20 19.86 1,070,388.00 13.57

36 For spreadsheet use Edge of Stream

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Example for TN

Bioretention (B soils w/ underdrain) at School Parking Lot

  • Treats 1.2 acres (75% impervious)

– (0.75) * 1.2 ac = 0.9 acres impervious and 0.3 acres pervious

  • 0.9 ac * 31.22 lbs/ac TN = 28.09 lbs/yr
  • 0.3ac * 19.86 lbs/ac TN = 5.96 lbs/yr
  • Total TN load to BMP = 34.05 lbs/yr

– BMP reduction efficiency for TN= 70%

  • 34.05 lbs TN *0.70= 23.84 lbs/yr reduction in TN

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan

Example Pollutant Load Reduction Spreadsheet

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Proj ID Name Location Proj Type Amount Unit TN Red Lbs/yr TP Red Lbs/yr TSS Red Lbs/yr $/est. (optional) 1 Little Big Run Lat/Long Stream Restoration 1200 Feet 359 122 970000 $250,000 2 Smart Kids Elementary School Street Address Bioretentio n 1.5 Acres Treated 175 95 130000 $34,000 3 Municipal Building Street Address Pond Retrofit 7.5 Acres Treated 292 175 9000 $50,000 4 Township Park Lat/Long Forest Buffer 4 acres 94 27 1200 $4,500

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 39

Pollutant Load Reduction Summary

  • Compare current loads (step 3) to projected load reduction

from planned BMPs (step 4) to show progress (% reduction)

TN TP TSS Current Load (includes voluntary and redevelopment projects) A lbs/yr Future planned projects B Percent Reduction B x100 A

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 40

Matching Load Reductions with WIP II Goals

  • Development of WIP II goals

– Developed using Chesapeake Bay Model/CAST tool

  • One advantage to using CAST

– GWLF (MapSheds) may have been used to develop local TMDL

– Goals often reflect delivered loads – CAST tool provides Edge of Stream and Delivered Loads – To estimate Delivered loads in CAST

  • Aggregate each practice type
  • Enter data
  • Run Model
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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 41

BMP Type Impervious Drainage Area (Acres) Pervious Drainage Area (Acres) Acres Linear Feet Stream Restoration 2,000 Forest Buffer 5.00 Infiltration w/sand 20 5

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 42

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 43

Project Implementation Schedule

Near Term Projects – little to no permits or permits in process,

  • wnership public or private with cooperating landowner, some

partial funding or design Mid Term Projects – public ownership, limited permits Long Term Projects- longer permit requirements, ownership issues

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 44

Appendix

  • Description of Inspection, Operation, and Maintenance of

BMPs.

  • For most standard BMPs this information can easily be

found in state stormwater manuals.

  • Proprietary BMPs should have information from vendor.
  • Include information on rationale for selecting BMP

especially if not one of the TMDL control measures or experimental.

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 45

Next Steps

  • Track BMP project implementation
  • Refine pollutant load reduction
  • Continue to evaluate planned public municipal infrastructure

upgrades

  • Show incremental progress- project location, when

constructed, etc.

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PA Municipal Separate Storm Sewer System (MS4) TMDL Plan Chesapeake Bay Pollution Reduction Plan 46

Next Steps

  • Track BMP project implementation
  • Refine pollutant load reduction
  • Continue to evaluate planned public municipal infrastructure

upgrades

  • Show incremental progress- project location, when

constructed, etc.

Questions? jas@cwp.org