Document By4y1pZ2x2w61bmp38wDNGOno

U.S. Environmental Protection Agency Office of Compliance and Enforcement 1200 Pennsylvania Avenue, NW Washington, DC 20460 U.S. Environmental Protection Agency, Region 2 290 Broadway New York, NY 10007-1866 MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4) COMPLIANCE AUDIT TOWNSHIP OF DEPTFORD, NEW JERSEY FINAL Report Date: September 22, 2023 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) CONTENTS 1.0 Introduction ..................................................................................................................1 1.1 Inspection Procedure ...........................................................................................2 1.2 History and Background......................................................................................3 2.0 Audit Observations.......................................................................................................3 2.1 Overall Program Management ............................................................................4 2.2 Stormwater Pollution Prevention Plan (SPPP) ...................................................4 2.3 Public Involvement and Participation Including Public Notice ..........................4 2.4 Local Public Education and Outreach .................................................................4 2.5 Post Construction Stormwater Management in New Development and Redevelopment .................................................................................................... 5 2.6 Pollution Prevention / Good Housekeeping for Municipal Operators ................6 2.7 MS4 Outfall Pipe Mapping, and Illicit Discharge and Scouring Detection and Control ................................................................................................................. 8 3.0 Field Observations........................................................................................................9 4.0 Summary ....................................................................................................................11 4.1 Potential Non-Compliance Items ......................................................................11 4.2 Area of Concern ................................................................................................13 APPENDIX A: APPENDIX B: APPENDIX C: R9 - MS4 - Tier A Municipal Stormwater General Permit (GP) Authorization Renewal, Permit No. NJG0141852 PHOTOGRAPH LOG EXHIBIT LOG Exhibit 1 - Municipal Stormwater Management Plan Exhibit 2 - Stormwater Outfalls Map Exhibit 3 - Stormwater Pollution Prevention Plan for Township of Deptford Exhibit 4 - Township of Deptford 2022 MS4 Annual Report Exhibit 5 - Stormwater Control Ordinance Exhibit 6 - Letter and Violation to Property Owners Exhibit 7 - Township of Deptford 2021 MS4 Annual Report MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) 1.0 Introduction In April 2023, the United States Environmental Protection Agency (EPA), Region 2, EPA contractors PG Environmental and Eastern Research Group, and the New Jersey Department of Environmental Protection (NJDEP) (collectively, hereinafter, the "EPA Audit Team"), conducted a compliance audit of Deptford Township's (hereinafter the "Township") Municipal Separate Storm Sewer System (MS4) program. The audit consisted of a virtual audit that took place on July 26 and 27, 2023 and a field inspection on August 2, 2023. The following are the primary representatives who participated in the audit: Affiliation Attendees Township Representatives: Rob Ritterson - Stormwater Program Coordinator & DPW Superintendent rritterson@deptford-nj.org Jon Bryson - Township Engineer jbryson@brysonyates.com State Representatives: Eileen Kull - NJDEP Southern Bureau, ES3 eileen.kull@dep.nj.gov EPA Representatives: Christy Arvizu - EPA Region 2, Environmental Scientist arvizu.christy@epa.gov EPA Contractors: Kate Forsmark - PG Environmental, Environmental Scientist kate.forsmark@pgenv.com Kelsey Guy - Eastern Research Group, Environmental Scientist kelsey.guy@erg.com Inspection Report Author: Signature: Name: Kate Forsmark Date: 9/22/2023 The purpose of the audit was to obtain information that will assist EPA in assessing the Township's compliance with the requirements of the New Jersey Department of Environmental Protection (NJDEP) New Jersey Pollutant Discharge Elimination System (NJPDES) Tier A Municipal Stormwater General Permit, Permit No. NJ00152153 (hereinafter, the "Permit"). The Permit became effective January 1, 2023, with an expiration date of December 31, 2027, and is included as Appendix A. The Township is authorized to discharge in accordance with the terms and conditions in the Permit under Authorization to Discharge No. NJG00152153. The audit focused on Permit Minimum Standards for: Public Involvement and Participation Including Public Notice; Local Public Education and Outreach; Page 1 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) Post Construction Stormwater Management in New Development and Redevelopment; Pollution Prevention / Good Housekeeping for Municipal Operators; and MS4 Mapping, Scouring, and Illicit Discharge Detection and Elimination. Construction site stormwater runoff was not evaluated as part of this audit. Part IV.D.1.a. of the Permit states "construction site stormwater runoff activities are authorized under a separate NJPDES permit, which is typically the Construction Activity NJPDES Stormwater General Permit No. NJ0088323 pursuant to N.J.A.C. 7:14A-25.6(b)2, or an individual permit pursuant to N.J.A.C. 7:14A-24.7(a)2." The EPA Audit Team compiled information about the Township's MS4 Program through document reviews, interviews with Township representatives, and visits to Township facilities and MS4 infrastructure; this information is presented in this report as audit observations. Appendix B, Photograph Log, contains photographs taken during the field inspection. Appendix C, Exhibit Log, contains the Stormwater Outfalls map, Stormwater Pollution Prevention Plan for Township of Deptford, Township of Deptford 2022 MS4 Annual Report and supplemental questionnaire, the Stormwater Control Ordinance, the Municipal Stormwater Management Plan, an example letter and violation to property owners and the 2021 MS4 Annual Report. 1.1 Inspection Procedure On July 26, 2023, the first day of the virtual audit, and on August 2, 2023, the on-site field inspection, members of the EPA Audit Team presented credentials to Township representatives and conducted a brief opening conference, during which the overall objectives and plans for the audit and on-site field inspection were discussed. At the conclusion of the field inspection on August 2, 2023, the EPA Audit Team conducted a closing conference with Township representatives to review the preliminary findings of the audit and discussed the process for providing a written report to the Township. The Township was informed that the findings are preliminary. 1.1.1 Notification and Records Request On July 6, 2023, the EPA Audit Team provided the Township with a formal notification via electronic mail that EPA would be conducting an inspection of the Township MS4 program. The formal notification included an EPA Records Request which asked the Township to make specific documentation available for review prior to and during the audit. The Township did not provide the EPA Audit Team with any of the requested documents prior to the start of the audit. On July 26, 2023, the first day of the virtual audit, the EPA Audit Team informed the Township representative that they would provide a shared online folder to upload the requested documents. Following the first day of the virtual audit, the EPA Audit Team submitted a second records request via email to the Township. On July 27, 2023, the EPA Audit Team submitted a third records request via email to the Township. On July 31, 2023, the EPA Audit Team submitted a fourth records request that noted which documents were not yet received. Page 2 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) During the field inspection, the Township provided outstanding records requested by the EPA Audit Team with the exception of the municipal board and governing body member training records. 1.2 History and Background NJDEP originally issued the Township Authorization to Discharge and assigned the unique identifying number, NJG 0152153 in 2004. Upon expiration of the 2004 Permit, coverage was automatically carried over to subsequent NJPDES Tier A MS4 General Permits, including the current Permit. The Permit authorizes the Township to discharge stormwater runoff and certain non-stormwater flows from the Township's MS4 to surface water and groundwater. The Township encompasses 17.57 sq miles in Gloucester County, bordered by Westville Borough to the north, Bellmawr Borough, Runnemede Borough, and Gloucester Township to the east, Washington Township to the southeast, Mantua Township to the southwest, Wenonah Borough, Woodbury Heights Borough, and Woodbury to the west. According to the 2020 U.S. Census, the total population of the Township was approximately 31,977. According to the Township representatives, the Township consists of approximately 40 percent residential structures, 40 percent commercial development, 10 percent agricultural land, and 10 percent open space. During the field inspection, the Township representative stated that a comprehensive list of the receiving waters is included in the Municipal Stormwater Management Plan (MSWMP) (refer to Appendix C, Exhibit 1). The MSWMP states that the Township has the following three (3) receiving watersheds: Big Timber Creek Mantua Creek Woodbury Creek During the field inspection, the EPA Audit Team noted that the Stormwater Outfalls map (refer to Appendix C, Exhibit 2) shows the following additional receiving waters: Almonesson Creek Monongahela Brook Big Timber Creek tributary Mantua Creek tributary Woodbury Creek tributary The Township representatives concurred that these receiving waters should be on the MSWMP list. 2.0 Audit Observations The EPA Audit Team made the following observations relative to the Township's MS4 program implementation and Permit requirements. Page 3 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) 2.1 Overall Program Management The Township's Stormwater Program Coordinator (SPC) role is filled by the Department of Public Works (DPW) Superintendent. The Township has contracted with Bryson & Yates Consulting Engineers LLC (Bryson & Yates) to fulfill the roles and responsibilities of the Township Engineer. Bryson & Yates has been under contract with the Township since 2020. The DPW is responsible for outfall inspections (stream scouring, dry weather, and illicit discharge), storm sewer system cleaning, and other MS4 maintenance activities. The Township's MS4 program is funded through the Township's annual working budget. Township reviews of stormwater development and redevelopment plans for private developments are funded through an escrow accounts. The Township does not utilize a stormwater fee. The Township's Stormwater Control Ordinance, Ordinance No. O.6.21 of the Township's Ordinances, and other Township Ordinances (e.g., litter control, property maintenance, parks, and open spaces) provide the Township with legal authority to enforce the MS4 program. According to the Township representatives and the 2021 and 2022 MS4 Annual Reports, the Township has between 230 and 250 MS4 outfalls; however, that number includes Gloucester County's MS4 outfalls (refer to Appendix C, Exhibits 4 & 7). At the time of the audit, the Township representatives did not have an updated inventory that included just the Township's MS4 outfalls. 2.2 Stormwater Pollution Prevention Plan (SPPP) In response to the EPA Records Request, the Township provided an electronic version of the Township's SPPP, which was originally developed in March 2005 and last updated in July 2023 (refer to Appendix C, Exhibit 3). The SPPP was developed using NJDEP's recommended SPPP forms and includes supplemental procedures, materials, and other information for implementing the program developed by the Permittee. 2.3 Public Involvement and Participation Including Public Notice The EPA Audit team discussed public involvement and participation with Township representatives. The Township has a dedicated stormwater webpage on its municipal website with the minimum required elements of the permittee's MS4 stormwater program including the SPPP, Municipal Stormwater Management Plan (MSWMP), ordinances, and the MS4 outfall and infrastructure map. The link to the dedicated stormwater webpage was included in the 2022 MS4 Annual Report. 2.4 Local Public Education and Outreach At the time of the audit, the Township was not implementing a formal public education and outreach program. Township representatives stated the only public education and outreach activities the Township performs is sending monthly brochures to residents with some information on stormwater. The 2022 Annual Report and Supplemental Questionnaire states that the Township conducted two "School/Youth Educational Activities" during the 2022 reporting period. However, during Page 4 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) the audit, the Township representative stated that the Township does not coordinate with the schools to provide water-related educational presentations and/or activities. The EPA Audit Team reviewed SPPP Form 4 - Public Education and Outreach (refer to Appendix C, Exhibit 3) and observed that the activities outlined in the SPPP include maintenance of a website, a mailing campaign, ordinance education, and a stormwater display do not add up to 12 points and do not include activities from at least three of the five categories as most of these activities are from Category 2: Targeted Audiences Outreach. During the audit, Township representatives stated an annual community clean-up takes place on Earth Day and is sponsored by the Township's Environmental Commission. This activity was not included in the SPPP. At the time of the audit, the Township did not have a program in place to educate businesses or the public about the hazards associated with illicit connections and improper disposal of waste. 2.5 Post Construction Stormwater Management in New Development and Redevelopment 2.5.1 Municipal Stormwater Management Plan The Township's MSWMP was developed in March 2006 and has not been updated since its development. The Township's MSWMP includes design and performance standards for stormwater management measures and stormwater facilities (refer to Appendix C, Exhibit 1). 2.5.2 Post Construction Stormwater Management Plan Review The Township's Stormwater Control Ordinance contains design standards for stormwater facilities and erosion and sediment control (refer to Appendix C, Exhibit 5). Bryson & Yates assists the Township to ensure that all major development projects are constructed in accordance with the development plans. The Township Engineer (i.e., Bryson and Yates) additionally stated that the engineering design and the engineering review are always performed independent from one another. At the time of the audit, the Township had four (4) major development projects. 2.5.3 Post Construction Stormwater Management Facilities Maintenance During the audit, Township representatives stated that the Township has an inventory of privately owned post-construction stormwater facilities within the MS4; however, the inventory is maintained by the Code Enforcement Department. The Township representatives stated that it is the Code Enforcement's responsibility to ensure that homeowner associations (HOAs) or private developers of residential or commercial developments are maintaining the privatelyowned post-construction stormwater facilities within the Township. The Code Enforcement Department inspects the privately owned post-construction stormwater facilities against their maintenance plans to determine if they are appropriately maintained and functioning properly. Following the inspection, Code Enforcement will issue letters to the owners informing them of inspections and issue violations if appropriate (refer to Appendix C, Exhibit 6). If the responsible parties do not complete the O&M and/or address a violation, the Township's Solicitor will then proceed with enforcement actions such as fines. The information is not readily communicated to the Stormwater Program Coordinator to document compliance Page 5 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) with the permit requirements. The DPW Supervisor maintains an inventory of the Township-owned stormwater facilities. The Township representatives stated that Township's stormwater facilities are maintained by the DPW through tasks such as landscaping and cleaning of debris and O&M activities are documented. The Township did not provide copies of maintenance records to the EPA Audit Team. 2.6 Pollution Prevention / Good Housekeeping for Municipal Operators 2.6.1 Community Wide Ordinances The Township has nine adopted ordinances, including the Stormwater Control Ordinance, which provide legal authority for enforcing the MS4 program. The Township maintains the following ordinances on the municipal website: 1. Pet Waste adopted on 4/2/2007 2. Wildlife Feeding adopted on 4/2/2007 3. Litter Control adopted on 4/2/2007 4. Improper Disposal of Waste adopted on 4/2/2007 5. Containerized Yard Waste / Yard Waste Collection Program adopted on 4/2/2007 6. Private Storm Drain Inlet Retrofitting adopted on 2/28/2011 7. Stormwater Control Ordinance adopted on 10/6/2006 8. Illicit Connection Ordinance adopted on 4/2/2007 9. Refuse Container / Dumpster Ordinance adopted on 2/28/2011 2.6.2 Community Wide Measures Street Sweeping According to the Township's SPPP Form 6 - Street Sweeping: "All of the municipal roadways within the Township are swept four (4) times a year. Sweeping records are kept at the Deptford Township Municipal Building - 1011 Cooper Street, Deptford, NJ. Logbooks are kept on file at the Deptford Township Public Works Facility" (refer to Appendix C, Exhibit 3). In response to the EPA's records request, the Township provided copies of the street sweeping logs. Additional street sweeping information provided by the Township included: The Township representatives stated that the DPW conducts street sweeping five days per week and all streets are swept three times per year vs the four times a year in Form 6. The Township representatives stated they do not have different schedules for streets with or without storm drains and that the Township prioritizes streets where yard waste has been collected the day before due to the higher volume of debris on these streets. The Township's 2022 MS4 Annual Report states that the Township conducted 411 miles of street sweeping and collected 129 tons of debris (refer to Appendix C, Exhibit 4). The DPW deposits sweeping tailings into stockpile at the DPW yard, and the debris is removed approximately every other month and disposed of at the Salem County landfill. Page 6 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) Catch Basin and Storm Drain Inlet Inspection and Cleaning The Township representatives stated that catch basin cleaning is conducted on an as needed basis by DPW employees using a Township-owned vac truck and that all 1,432 Township catch basins are inspected annually. Catch basin cleaning and maintenance activities are documented on hardcopy forms. Catch basin debris is stored at the DPW yard with street sweeping debris before being disposed of at the Salem County landfill. The Township's 2022 MS4 Annual Report states that the Township operates 1,432 catch basins and inspected 1,118 catch basins, cleaned 109 catch basins, and collected 5.4 tons of material (refer to Appendix C, Exhibit 4). Storm Drain Inlet Labeling According to the Township's SPPP Form 8 - Catch Bains and Storm Drain Inlets: "All inlets have been stenciled with the Township. The Township maintains a stencil and re-applies labels as needed" (refer to Appendix C, Exhibit 3). The 2022 MS4 Annual Report states that 100 percent of storm drains were labeled to indicate the drain empties into a local waterway (refer to Appendix C, Exhibit 4). During the field inspection, the EPA Audit Team observed storm drain inlets that did not have labels to indicate that the storm drain emptied directly into a local waterway (refer to Site Visits #4 and #5, below). Storm Drain Inlet Retrofits The 2022 MS4 Annual Report states that 95 percent of storm drains had been retrofitted (refer to Appendix C, Exhibit 4). Catch basin retrofitting is completed when the roads are repaved and is completed by the contractor who is repaving. 2.6.3 Municipal Maintenance Yards and Other Ancillary Operations The Township has a DPW, a police station, and a fire station and has developed an inventory of materials at municipally owned facilities and operations with the potential to pollute stormwater. The inventory is contained in the SPPP (refer to Appendix C, Exhibit 3). All Township vehicles are fueled at the DPW Yard. The facility maintains two aboveground double walled storage tanks (ASTs) storing 7,000-gallons of gasoline and 3,000-gallons of diesel. During the audit, the DPW representative stated he conducts daily visual inspections of the DPW yard and other employees conduct monthly inspections that they documented on hardcopy forms. During the field inspection, the EPA Audit Team reviewed copies of monthly inspections conducted during 2023. However, the monthly inspection forms provided were "Facility Hazard Identification Inspections" and did not have a specific focus on stormwater to identify conditions that would contribute to stormwater contamination, illicit discharges, or negative impacts to the permittee's MS4. Page 7 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) Employee Training The Township's 2022 MS4 Annual Report states that the municipality conducted training during that calendar year (refer to Appendix C, Exhibit). The Township representatives provided copies of the sign-in sheets documenting the training. The Township Engineer took the Stormwater Management Design Review Course and provided a copy of his certificate of completion to the EPA Audit Team. Township representatives stated that municipal and governing body board members have completed the "Asking the Right Questions in Stormwater Review Training Tool" through NJDEP, but documentation was not provided in response to the EPA Audit Team's July 6, 2023 and July 26, 2023 requests. Township representatives stated that the person who would have those records was not available at the time of the audit. 2.7 MS4 Outfall Pipe Mapping, and Illicit Discharge and Scouring Detection and Control 2.7.1 Outfall Pipe Mapping The Township's Stormwater Outfalls Map shows some of the Township's MS4 outfalls, Gloucester County's MS4 outfalls, municipal boundaries, receiving waters, and roadways (refer to Appendix C, Exhibit 2). The map is reviewed and revised on an annual basis. At the time of the audit, the Township representatives did not have a definitive number of the Township's MS4 outfalls. According to the Township representatives and the 2021 and 2022 MS4 Annual Reports, the Township has between 230 and 250 MS4 outfalls; however, that number includes Gloucester County's MS4 outfalls (refer to Appendix C, Exhibits 2 and 7). During the field inspection, the EPA Audit Team observed mapped MS4 outfalls that did not appear to meet the Permit definition of an outfall (refer to Site Visit #5, below). Specifically, the EPA Audit Team observed outfall B119, labeled as an outfall on the Township's hardcopy outfall location maps. Outfall B119 was observed to be a stormwater conveyance that transports stormwater from the roadway into an open sports field and not into a Water of the United States. The Permit defines an outfall as "any point source which discharges directly to waters of the United States and does not include open conveyances connecting two municipal separate storm sewers, or pipes, tunnels or other conveyances which connect segments of the same stream or other waters of the United States and are used to convey waters of the United States." 2.7.2 Stream Scouring The Township Representatives stated that the DPW is responsible for conducting stream scouring investigations. Stream scouring inspections occur on a regular basis and are tracked to ensure all MS4 outfalls are inspected every five years with approximately 20% of the MS4 outfalls inspected each year. The 2022 MS4 Annual Report states that the Township has a prioritized list of outfall pipes requiring stream scouring remediation (refer to Appendix C, Exhibit 4). SPPP Form 7, Section 4 (refer to Appendix C, Exhibit 3), states that "outfall pipes are inspected annually. There are no known scour issues within the Township. Records are kept at the publics works facility." During the field inspection, the EPA Audit Team visited a location in the Township where stream scouring had been occurring and the Township has remedied the issue by using bank stabilization methods (refer to Site Visit #4, below). Page 8 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) 2.7.3 Illicit Discharge Detection and Elimination The Township representative stated that the DPW is responsible for conducting dry weather outfall inspections; however, the Township has not conducted dry weather flow inspections at the MS4 outfalls. The Township representative stated that the DPW inspects outfalls known to have issues with debris build-up before and after storms and they try to inspect the outfalls around inclement weather. According to the Township SPPP Form 7, Section 5 (refer to Appendix C, Exhibit 3): "The Township's Public Works Department inspects outfalls annually and checking for illicit connections. The Township will use NJDES Illicit Connection Inspection Report to track any illicit connections." The Township has developed an Illicit Connection Ordinance prohibiting illicit connections with or discharges to the MS4. The Township representatives stated if the public needs to report a possible illicit connection they would call the DPW. During the audit, the Township representative also stated they could not recall any complaints related to illicit connections in the duration they have worked with the Township. 3.0 Field Observations The table below summarizes the EPA Audit Team's field observations from site visits conducted in the Township on August 2, 2023. The weather at the time of the site visits was sunny with temperatures ranging from approximately 70F to 75F. Site Visit #1: Department of Public Works - 1710 Hurffville Rd, Deptford, NJ 08096 Geographic Location: 39.795287, -75.099094 Date: 8/2/2023 Time: 8:00 AM (EDT) to 9:25 AM (EDT) Notable Observations: The DPW contains the DPW office building, a garage for storing equipment and vehicles, a maintenance garage, and a yard (refer to Appendix B, Photographs 1 through 3). The Township's Police Department also has buildings at the DPW for storage and a K9 kennel. The maintenance garage is used for maintenance of municipal vehicles including small trucks and equipment. Maintenance activities include oil and vehicle fluids changes, battery changes, and other light maintenance. The garage does not contain any floor drains. The EPA Audit Team observed the Township's salt storage (refer to Appendix B, Photograph 4). The EPA Audit Team did not observe any catch basins or storm drains on the DPW property, and the surface gradient was east to west. The DPW maintains two aboveground storage tanks (ASTs), one storing 7,000-gallons of gasoline and one storing 3,000-gallons of diesel (refer to Appendix B, Photograph 5). The EPA Audit Team observed a spill kit next to associated fuel pumps (refer to Appendix B, Photograph 6). The EPA Audit Team observed the signage at the fuel pumps did not include specific language required by the Permit (refer to Appendix B, Photograph 22). The EPA Audit Team observed one roll-off dumpster centrally located at the yard holding used tires, the roll-off had a cover (refer to Appendix B, Photograph 7). The DPW yard contains concrete bays used for storing street sweepings, scrap metal, aggregate materials, and wood waste (refer to Appendix B, Photographs 8 and 9). The DPW representative Page 9 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) stated the bays had been emptied, and materials taken to their relative disposal locations, the week prior to the field inspection. The bays were observed without covers over the top or barriers at the front to prevent or minimize stormwater run-on or pollutant run-off. The DPW stores waste oil in one (1) 200-gallon tank outside the garage within secondary containment and under a cover (refer to Appendix B, Photographs 10 and 11). The DPW has an "e-waste recycling" area where residents can drop off used electronics and the DPW stores them under a cover before recycling or disposing of them (refer to Appendix B, Photograph 12). Site Visit #2: Heritage Woods Basin - Deptford, NJ 08096 Geographic Location: 39.802140, -75.084502 Date: 8/2/2023 Time: 9:28 AM (EDT) to 9:38 AM (EDT) Notable Observations: Heritage Woods Basin is a post-construction stormwater control, detention basin, located within a residential neighborhood. The detention basin has not gotten final approval of completion due to the basin not functioning as intended. According to the Township engineer, the ground beneath the basin contains a thick clay layer which causes water to pool in the basin as opposed to infiltrating. Additionally, the weir structure in the basin was constructed higher than the rest of the basin and water does not flow towards the weir. The EPA Audit Team observed the detention basin to have standing water at the time of the field inspection (refer to Appendix B, Photograph 13). At the time of the field inspection, the Township representatives did not have a timeframe for when the basin would be rebuilt or fixed. Site Visit #3: Lake Bridge Community Outfall - Deptford, NJ 08096 Geographic Location: 39.835498, -75.132866 Date: 8/2/2023 Time: 10:52 AM (EDT) to 10:08 AM (EDT) Notable Observations: The Township's Stormwater Outfalls map identifies outfalls in the Lake Bridge Community that discharge into the Woodbury Creek Tributary. Outfall B005 is located within the Lake Bridge Community and has been reported to the Township with scouring issues. The EPA Audit Team observed outfall B005 which had minimal erosional issues (refer to Appendix B, Photograph 14). Site Visit #4: Carson Avenue Stream Scouring - Carson Ct & Carson Ave, Deptford, NJ 08096 Geographic Location: 39.838769, -75.138970 Date: 8/2/2023 Time: 10:19 AM (EDT) to 10:31 AM (EDT) Notable Observations: The Township has an outfall south of Carson Avenue which discharges into Stewart Lake. The location is a location where stream scouring is a problem for the Township. The EPA Audit Team observed where the Township installed rip rap to mitigate stream scouring from the outfall (refer to Appendix B, Photographs 15 and 16). The EPA Audit Team additionally observed an unlabeled storm drain along Carson Avenue that connected to the outfall (refer to Appendix B, Photograph 17). Site Visit #5: Deptford Sports Complex - Montague Ln, Deptford, NJ 08096 Page 10 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) Geographic Location: 39.848890, -75.106525 Date: 8/2/2023 Time: 10:41 AM (EDT) to 10:58 AM (EDT) Notable Observations: The Deptford Sports Complex is a municipally owned and maintained facility. The complex is bordered by wetlands to the south and the Big Timber River to the east. The Township's outfall map identifies outfalls B118 - B121 in at this location. The EPA Audit Team observed outfalls B119 and B118. o Outfall B119 was observed to be a stormwater conveyance from catch basins in the roadway into one of the sports fields (refer to Appendix B, Photographs 18 through 20). The outfall was observed approximately 300 feet away from the wetland. o The catch basin that conveys stormwater to Outfall B119 was observed to be unlabeled (refer to Appendix B, Photograph 20). o Outfall B118 was observed to be an outfall discharging stormwater from a parking lot into the wetland to the south (refer to Appendix B, Photograph 21). 4.0 Summary 4.1 Potential Non-Compliance Items 1. Part IV.C.1.a of the Permit states that "the permittee shall implement a Public Education and Outreach Program that focuses on educational and pollution prevention activities about the impacts of stormwater discharges on surface water and ground water and involves the public in reducing pollutants in stormwater and mitigating flow. The permittee shall: i. Annually conduct activities that total at least 12 points and include activities from at least three of the five categories as set forth in Attachment A; ii. At a minimum, at least one of the activities shall involve educating businesses and the general public of hazards associated with illicit connections and improper disposal of waste." At the time of the audit, the EPA Audit Team observed that the Township's SPPP did not include activities that totaled at least 12 points and included activities from at least three of the five categories as required, nor was the Township educating businesses and the general public of hazards associated with illicit connections and improper disposal of waste on an annual basis. 2. Part IV.E.1.c of the Permit states "the post construction stormwater management program established by the permittee shall require compliance with the applicable design, performance and maintenance standards established under N.J.A.C. 7:8 for "major development". During the field inspection, the EPA Audit Team observed a detention basin at Heritage Woods that was not functioning properly, nor had the detention basin received final approval of completion from the Township. 3. Part IV.E.2.a.i of the Permit states that the permittee shall "adopt, amend, and implement a written MSWMP" ... and "conduct a re-examination of its MSWMP as part of the re- Page 11 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) examination of its municipal master plan in accordance with N.J.A.C. 7:8-4.3(c) and (d), at least every 10 years, or more often as necessary to reflect changes related to the permittee's stormwater management program. At the time of the audit, the MSWMP provided to the EPA Audit Team was dated February 2006 and the Township representative stated that the document had not been re-examined or updated since its development. 4. Part IV.F.2.a.iii of the Permit states that the "permittee shall label all permittee owned or operated storm drain inlets that do not have permanent wording cast into the structure of the inlet to indicate that it empties directly into a local waterway." During the field inspection, the EPA Audit Team observed two storm drain inlets that did not have labels. 5. Part IV.F.5.b of the Permit states that the "permittee shall inspect the entire site, including the site periphery, monthly (under both dry and wet conditions, when possible), and identify conditions that would contribute to stormwater contamination, illicit discharges, or negative impacts to the permittee's MS4." At the time of the audit, the Township was not conducting site inspections at the DPW that focused on identifying conditions that would contribute to stormwater contamination, illicit discharges, or negative impacts to the permittee's MS4. 6. Part IV.F.5.l of the Permit states that the permittee "may store materials such as sand, gravel, stone, topsoil, wood chips, and finished leaf compost, provided these materials are: i. Stored a minimum of 50 feet from surface water bodies, storm sewer inlets, and/or ditches or other stormwater conveyance channels. ii. Stored in a manner as to minimize stormwater run-on and pollutant run-off via surface grading, dikes and/or berms (which may include sandbags, hay bales and curbing, among others) or three-sided storage bays." During the field inspection, the EPA Audit Team did not observe best management practices at the concrete bays used to store street sweepings, scrap metal, aggregate materials, and wood waste at the DPW. 7. Part IV.F.10 of the Permit states that permittees "shall ensure that municipal board and governing body members complete the "Asking the Right Questions in Stormwater Review Training Tool" posted at www.njstormwater.org/training.htm ..." and "maintain a list of the dates and names of training program participants in its SPPP." The EPA Audit Team did not observe records documenting that Township of Deptford municipal board and governing body members had taken the required training. 8. Part IV.G.3.b of the Permit states that permittees shall: i. "Conduct visual dry weather inspection of all outfalls owned or operated by the permittee at least once every five years, with a minimum of 20% of the total number of outfalls per year, to determine if dry weather flow (flow occurring 72 hours after a rain event) or other evidence of illicit discharge is present." Page 12 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) MS4 Program Compliance Audit Deptford Township, New Jersey (NJPDES No. NJG0152153) The Township did not have documentation demonstrating that dry weather visual inspections are conducted at each MS4 outfall owned or operated by the permittee at least once every five years, with a minimum of 20 percent of the total number of outfalls per year. 4.2 Areas of Concern 1. According to the Township representatives and the 2021 and 2022 MS4 Annual Reports, the Township has between 230 and 250 MS4 outfalls. At the time of the audit, the EPA Audit Team observed that the Township representatives did not have an updated inventory of the Township's MS4 outfalls. In addition, during the field inspection, the EPA Audit Team observed a location identified on the Township's Stormwater Outfall maps which did not qualify as an outfall in accordance with Part IV Notes and Definitions in the Permit. Specifically, outfall B119 was observed to convey stormwater to a field, not to a Water of the United States. 2. According to the Township representatives, the responsibility of ensuring the O&M of privately owned post-construction stormwater facilities falls within the Code Enforcement Department. The Stormwater Program Coordinator is the individual who is supposed to be responsible for implementing the stormwater program and ensuring all departments that are involved in the implementation of the MS4 program provide information in a timely manner. At the time of the audit, the information about O&M of privately owned stormwater facilities was not readily communicated to the Stormwater Program Coordinator to document compliance with the permit requirements. 3. Part IV.F.5.g.iii of the Permit states that the permittee shall "clearly post, in a prominent area of the facility, instructions for safe operation of fueling equipment" and that the signage must include the following: "Topping off of vehicles, mobile fuel tanks, and storage tanks is strictly prohibited" "Stay in view of fueling nozzle during dispensing" During the field inspection, the EPA Audit Team observed signage in the area of fueling operations with standard operating procedures for fueling vehicles and the emergency contact information for spill response; however, the signage did not include the specific language required by the Permit. Page 13 of 13 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Appendix B Photograph Log Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 1. Department of Public Works - General view, facing northwest, of the DPW yard and maintenance garage. Photograph 2. Department of Public Works - View, facing northeast, of equipment storage in the yard. Page 1 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 3. Department of Public Works - View, facing east, of the garage bays for storing equipment and vehicles. Photograph 4. Department of Public Works - View, facing southwest, of the salt shed. Page 2 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 5. Department of Public Works - View, facing northwest, of the 7,000-gallon gasoline and 3,000gallon diesel double wall aboveground storage tanks. Photograph 6. Department of Public Works - View, facing north, of the fuel pumps and spill kit (yellow). Page 3 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 7. Department of Public Works - View, facing west, of the roll-off dumpster holding used tires. Note the permanent cover over the dumpster. Photograph 8. Department of Public Works - View, facing northwest, of the concrete bays used to store street sweepings, scrap metal, aggregate materials, and wood waste. Page 4 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 9. Department of Public Works - View, facing north, of the concrete bays storing street sweepings. The bays had been cleaned out prior to the field inspection. Note the lack of cover or berms at the front. Photograph 10. Department of Public Works - View, facing southeast, of the structure housing the waste oil tank. Page 5 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 11. Department of Public Works - View of the ground surface around the waste oil tank structure. Oil was observed spilled on the ground around the tank. Photograph 12. Department of Public Works - View, facing south, of the structure that houses "e-waste recycling from residents". Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Page 6 of 11 Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Standing water Photograph 13. Heritage Basin - View, facing north, of the detention basin. The weir structure is in the northern corner (red). Note the standing water. Photograph 14. Lake Bridge Community- View, facing southwest, of outfall B005. Page 7 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 15. Carson Avenue Stream Scouring - View, facing south, of the rip rap installed to mitigate stream scouring. Photograph 16. Carson Avenue Stream Scouring - View of the mouth of the outfall. Page 8 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 17. Carson Avenue - View of an unlabeled storm drain on Carson Avenue. Photograph 18. Deptford Sports Complex - View, facing north, of outfall B119. The outfall was partially filled with sediment. Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Page 9 of 11 Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Flow direction Photograph 19. Deptford Sports Complex - View, facing south, of the field where outfall B119 conveys water to. The nearest receiving water is approximately 300 feet from the outfall. Photograph 20. Deptford Sports Complex - View, facing south, of an unlabeled catch basin that discharges stormwater to outfall B119. Page 10 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford, New Jersey (NJPDES No. NJG0152153) MS4 Audit Report - Appendix B Photograph Log Photograph 21. Deptford Sports Complex - View, facing southeast, of the location of outfall B118. The vegetation around the outfall is overgrown making the outfall difficult to find and access. Photograph 22. Department of Public Works - View of the signage in the area of fueling operations. The sign does not specifically state "Topping off of vehicles, mobile fuel tanks, and storage tanks is strictly prohibited" and "Stay in view of fueling nozzle during dispensing". Page 11 of 11 Audit Dates: July 26 - 27, 2023 (Virtual Audit), August 2, 2023 (Field Inspection) Township of Deptford Exhibit Log Exhibit 1 - Township of Deptford Municipal Stormwater Management Plan 4745 Watershed Based Municipal Stormwater Management Plan Deptford Township prepared for Gloucester County Improvement Authority on behalf of Gloucester County Board of Chosen Freeholders and Deptford Township February 2006 ________________________________ William H. Fleming, Jr., P.E., P.P. Professional Planner NJ License No. 33LI00273900 Churchill Consulting Engineers 344 North Route 73 Suite A Berlin, NJ 08009 prepared by: Adams, Rehmann & Heggan 850 South White Horse Pike Hammonton, NJ 08037 Melvin Kernan LLC 935 Kings Highway, Suite 300 Thorofare, NJ 08086 (The original of this report has been signed and sealed in accordance with the law) Acknowledgements Gloucester County Freeholders Stephen M. Sweeney, Director Robert M. Damminger, Deputy Director Joseph A. Brigandi, Jr. Frank J. DiMarco William (Bill) Krebs Helene M. Reed Warren S. Wallace Gloucester County Improvement Authority Board Members Joseph A. Brigandi, Sr., Chairman Charles Fentress, Vice Chairman Sam Ferraino, Jr., Secretary/Treasurer Chad M. Bruner, Commissioner Jeanette Moyer, Commissioner Gloucester County Planning Division Charles Romick, Director Gloucester County Improvement Authority Staff David Shields, Executive Director George Strachan, Assistant Administrator Parker McCay Joseph J. McGovern, Esquire Federation of Gloucester County Watersheds Suzanne McCarthy Christine Nolan Gloucester and Camden County Soil Conservation Districts Victor DeVasto Craig McGee Rowan University Joseph Orlins, PhD., PE, D WRE Deptford Township Deptford Township Planning Board Deptford Township Stormwater Program Coordinator WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table of Contents SECTION 1. INTRODUCTION .............................................................................................................. 1-1 SECTION 2. GOALS ................................................................................................................................ 2-1 SECTION 3. STORMWATER AND DEVELOPMENT....................................................................... 3-1 SECTION 4. BACKGROUND................................................................................................................. 4-1 DEPTFORD TOWNSHIP ZONING AND EXISTING LAND USE....................................................................................................... 4-1 POPULATION AND HOUSING................................................................................................................. 4-4 SURFACE WATER................................................................................................................................. 4-5 GROUND WATER ............................................................................................................................... 4-11 SOILS ................................................................................................................................................. 4-16 BIG TIMBER CREEK WATERSHED TOPOGRAPHY .................................................................................................................................... 4-19 HYDROLOGY...................................................................................................................................... 4-19 SURFACE WATER QUALITY ............................................................................................................... 4-20 CATEGORY ONE WATERS .................................................................................................................. 4-23 HYDROGEOLOGY ............................................................................................................................... 4-24 SOILS ................................................................................................................................................. 4-24 CRITICAL HABITATS .......................................................................................................................... 4-24 MANTUA CREEK WATERSHED TOPOGRAPHY .................................................................................................................................... 4-26 HYDROLOGY...................................................................................................................................... 4-26 SURFACE WATER QUALITY ............................................................................................................... 4-28 CATEGORY ONE WATERS .................................................................................................................. 4-30 HYDROGEOLOGY ............................................................................................................................... 4-30 SOILS ................................................................................................................................................. 4-31 CRITICAL HABITATS .......................................................................................................................... 4-31 WOODBURY CREEK WATERSHED TOPOGRAPHY .................................................................................................................................... 4-33 HYDROLOGY...................................................................................................................................... 4-33 SURFACE WATER QUALITY ............................................................................................................... 4-35 CATEGORY ONE WATERS .................................................................................................................. 4-37 HYDROGEOLOGY ............................................................................................................................... 4-37 SOILS ................................................................................................................................................. 4-37 CRITICAL HABITATS .......................................................................................................................... 4-38 SECTION 5. BUILD-OUT ANALYSIS AND POLLUTANT LOADING PROJECTIONS .............. 5-1 DEPTFORD TOWNSHIP BUILD-OUT, IMPERVIOUS COVER AND POLLUTANT LOADING PROJECTIONS....................................... 5-5 BIG TIMBER CREEK WATERSHED BUILD-OUT, IMPERVIOUS COVER AND POLLUTANT LOADING PROJECTIONS ....................................... 5-7 GLOUCESTER COUNTY ii FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP MANTUA CREEK WATERSHED BUILD-OUT, IMPERVIOUS COVER AND POLLUTANT LOADING PROJECTIONS ....................................... 5-9 WOODBURY CREEK WATERSHED BUILD-OUT, IMPERVIOUS COVER AND POLLUTANT LOADING PROJECTIONS ..................................... 5-11 SECTION 6. DESIGN AND PERFORMANCE STANDARDS............................................................ 6-1 SECTION 7. PLAN CONSISTENCY...................................................................................................... 7-1 SECTION 8. STORMWATER MANAGEMENT STRATEGIES ....................................................... 8-1 LOW IMPACT DEVELOPMENT TECHNIQUES ......................................................................................... 8-1 OTHER STORMWATER MANAGEMENT STRATEGIES ............................................................................. 8-5 SECTION 9. MITIGATION PLANS ...................................................................................................... 9-1 SECTION 10. GLOUCESTER COUNTY STORMWATER MANAGEMENT PROGRAM......... 10-1 Tables DEPTFORD TOWNSHIP TABLE 1. DEPTFORD TOWNSHIP AREA ................................................................................................. 4-1 TABLE 2. DEPTFORD TOWNSHIP POPULATION AND HOUSING (YEAR 2000) ......................................... 4-4 TABLE 3. DEPTFORD TOWNSHIP POPULATION DENSITY (1990 - 2003) ................................................ 4-4 TABLE 4. DEPTFORD TOWNSHIP POPULATION GROWTH (1990 - 2003)................................................ 4-4 TABLE 5. DEPTFORD TOWNSHIP PROJECTED POPULATION GROWTH (2000 - 2030)............................. 4-5 TABLE 6. WATERSHEDS WITHIN GLOUCESTER COUNTY...................................................................... 4-5 TABLE 7. DEPTFORD TOWNSHIP WATERSHEDS .................................................................................... 4-6 TABLE 8. DEPTFORD TOWNSHIP WATERSHEDS AND HUC14S ............................................................. 4-8 TABLE 9. POLLUTANT LOADS FOR VARIOUS LAND COVER TYPES....................................................... 5-4 TABLE 10. DEPTFORD TOWNSHIP POLLUTANT LOADING PROJECTIONS ............................................... 5-6 BIG TIMBER CREEK WATERSHED TABLE BT-1. BIG TIMBER CREEK WATERSHED HUC14S .................................................................. 4-21 TABLE BT-2. BIG TIMBER CREEK WATERSHED IMPAIRED WATERS LIST .......................................... 4-22 TABLE BT-3. BIG TIMBER CREEK WATERSHED TMDL PROPOSALS.................................................. 4-23 TABLE BT-4. BIG TIMBER CREEK WATERSHED POLLUTANT LOADING PROJECTIONS ......................... 5-8 MANTUA CREEK WATERSHED TABLE MC-1. MANTUA CREEK WATERSHED HUC14S...................................................................... 4-27 TABLE MC-2. MANTUA CREEK WATERSHED IMPAIRED WATERS LIST.............................................. 4-29 TABLE MC-3. MANTUA CREEK WATERSHED TMDL PROPOSALS ..................................................... 4-30 TABLE MC-4. MANTUA CREEK WATERSHED POLLUTANT LOADING PROJECTIONS ........................... 5-10 WOODBURY CREEK WATERSHED TABLE WC-1. WOODBURY CREEK WATERSHED HUC14S................................................................. 4-34 TABLE WC-2. WOODBURY CREEK WATERSHED IMPAIRED WATERS LIST......................................... 4-36 TABLE WC-3. WOODBURY CREEK WATERSHED TMDL PROPOSALS ................................................ 4-37 TABLE WC-4. WOODBURY CREEK WATERSHED POLLUTANT LOADING PROJECTIONS ...................... 5-12 GLOUCESTER COUNTY iii FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figures DEPTFORD TOWNSHIP FIGURE 1. DEPTFORD TOWNSHIP AND GLOUCESTER COUNTY WATERSHEDS....................................... 1-1 FIGURE 2. DELAWARE VALLEY DEVELOPMENT PATTERNS (1930 - 2000) ........................................... 1-2 FIGURE 3. GROUNDWATER RECHARGE IN THE HYDROLOGIC CYCLE ................................................... 3-1 FIGURE 4. SUBSURFACE WATER........................................................................................................... 3-1 FIGURE 5. GROUNDWATER FLOW PATHS ............................................................................................. 3-2 FIGURE 6. ZONING................................................................................................................................ 4-2 FIGURE 7. EXISTING LAND USE............................................................................................................ 4-3 FIGURE 8. HUC14S .............................................................................................................................. 4-7 FIGURE 9. GEOLOGY AND WELL HEAD PROTECTION AREAS.............................................................. 4-15 FIGURE 10. SOILS ............................................................................................................................... 4-18 Appendices APPENDIX A. WATERSHED FIGURES BIG TIMBER CREEK WATERSHED FIGURE BT-1. FIGURE BT-2. FIGURE BT-3. FIGURE BT-4. FIGURE BT-5. FIGURE BT-6. FIGURE BT-7. FIGURE BT-8. AERIAL PHOTOGRAPHY (2002) TOPOGRAPHY WATERWAYS WATER QUALITY GROUND WATER RECHARGE CRITICAL HABITAT LAND USE CONSTRAINED AREAS MANTAU CREEK WATERSHED FIGURE MC-1. FIGURE MC-2. FIGURE MC-3. FIGURE MC-4. FIGURE MC-5. FIGURE MC-6. FIGURE MC-7. FIGURE MC-8. AERIAL PHOTOGRAPHY (2002) TOPOGRAPHY WATERWAYS WATER QUALITY GROUND WATER RECHARGE CRITICAL HABITAT LAND USE CONSTRAINED AREAS WOODBURY CREEK WATERSHED FIGURE WC-1. FIGURE WC-2. FIGURE WC-3. FIGURE WC-4. FIGURE WC-5. FIGURE WC-6. FIGURE WC-7. FIGURE WC-8. AERIAL PHOTOGRAPHY (2002) TOPOGRAPHY WATERWAYS WATER QUALITY GROUND WATER RECHARGE CRITICAL HABITAT LAND USE CONSTRAINED AREAS GLOUCESTER COUNTY iv FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN APPENDIX B. WATER QUALITY DATA BIG TIMBER CREEK WATERSHED WATER QUALITY DATA MANTUA CREEK WATERSHED WATER QUALITY DATA WOODBURY CREEK WATERSHED WATER QUALITY DATA APPENDIX C. MUNICIPAL REGULATIONS CHECKLIST APPENDIX D. LOW IMPACT DEVELOPMENT CHECKLIST APPENDIX E. DEPTFORD TOWNSHIP MITIGATION PLANS DEPTFORD TOWNSHIP GLOUCESTER COUNTY v FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 1. Introduction All New Jersey municipalities were required in early 2004 to obtain a NJPDES Municipal Stormwater General Permit for control of their stormwater discharges. The Gloucester County Board of Chosen Freeholders, through the Gloucester County Improvement Authority (GCIA), is committed to working with all of the municipalities in Gloucester County to cost-effectively accomplish the new stormwater management permit program's goals. To that end, the GCIA has undertaken watershed-based municipal stormwater management planning throughout the County, and has prepared a Watershed Based Municipal Stormwater Management Plan (MSWMP) for Deptford Township that includes both municipal and watershed stormwater management information and evaluations. The location of Deptford Township, in relationship to the eight major watersheds in Gloucester County, is shown on Figure 1. Figure 1. Deptford Township and Gloucester County Watersheds The NJDEP's new Stormwater Management Rules in N.J.A.C. 7:8 have been developed to address the adverse impacts that unmanaged land development can have on groundwater recharge and stormwater runoff quality and quantity. Figure 2 shows the expansion of development within the Delaware Valley during the 70 year period from GLOUCESTER COUNTY 1-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP 1930 through 2000. Along with this development has come a corresponding increase in stormwater runoff, and increased impacts associated with non-point source pollution. 222.000 acres developed; 3.3 million 11eo11le 6-U,000 acres developed; 5.1 million people 803,000 acres developed; 5.1 million people 9 I9,9l 9 acres developed 5.4 01.Uion peo11le Source: DVRPC Figure 2. Delaware Valley Development Patterns (1930 - 2000) The Deptford Township MSWMP was prepared as part of Gloucester County's Stormwater Management Program. The Sample Municipal Stormwater Management Plan included in Appendix C of the New Jersey Stormwater Best Management Practices Manual, dated February 2004, was utilized as a template for preparation of the plan. The MSWMP provides strategies for Deptford Township to follow in addressing stormwater management. The plan is required by N.J.A.C. 7:14A-25, the Municipal Stormwater Regulations, and contains the elements required by N.J.A.C. 7:8, the Stormwater Management Rules. The MSWMP addresses groundwater recharge and stormwater quantity and quality, by incorporating the stormwater design and performance standards for new major development (defined as projects that disturb one or more acres of land or increase the amount of impervious surface by one-quarter acre or more). These standards are intended to minimize the adverse impact of stormwater runoff on water quality, and to address water quantity and the loss of groundwater recharge that provides base flow in receiving water bodies. The MSWMP also includes: Long-term operation and maintenance measures for stormwater facilities associated with new major development projects. A "build-out" analysis that is based upon existing zoning and the land available for development. Changes that should be made to existing ordinances, the Master Plan, and other municipal land use planning documents, in order to allow various low impact development techniques. Mitigation strategies for variances or exemptions from the design and performance standards, including the implementation of specific mitigation projects to offset the effects of such variances or exemptions. GLOUCESTER COUNTY 1-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 2. Goals The Deptford Township MSWMP goals are: 1. The reduction of flood damage, including damage to life and property. 2. The minimization, to the extent practical, of increases in stormwater runoff from new development. 3. The reduction of soil erosion from construction activities. 4. The insurance of adequate stormwater facilities, including culverts, bridges, and other in-stream structures. 5. The maintenance of groundwater recharge. 6. The prevention, to the extent feasible, of non-point stormwater pollution. 7. The maintenance of surface waters to ensure their biological and stormwater management functions, including the restoration, enhancement, and maintenance of their chemical, physical, and biological integrity, in order to protect public health and safeguard aquatic life; the preservation of their scenic and ecological values; and the enhancement of their domestic, municipal, recreational, industrial, and other uses. 8. The protection of public health and welfare, through the planning, engineering, operation and maintenance of stormwater systems. The MSWMP outlines specific stormwater standards for new development and proposes stormwater management controls that address impacts from existing development. Preventative and corrective maintenance strategies are included to ensure the long-term effectiveness of stormwater management facilities. The MSWMP provides recommendations for stormwater systems to protect the public health and welfare. This watershed-based MSWMP includes a discussion of both Deptford Township and its watershed(s). Land use, zoning, impervious surfaces, and pollutant loadings were evaluated using a Geographic Information System. These efforts provide an initial understanding of surface water quality in the County's watersheds, and establish a basis for evaluating the impacts of future land use and zoning decisions. GLOUCESTER COUNTY 2-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 3. Stormwater and Development Water moves continuously through the hydrologic or water cycle (see Figure 3). Water evaporates from water bodies and the earth's surface and transpires from vegetation into the atmosphere (these components of the water cycle are jointly referred to as Figure 3. Groundwater Recharge in the Hydrologic Cycle evapotranspiration). Water vapor in the atmosphere condenses to form clouds which produce precipitation that falls to the earth's surface. A small percentage of this precipitation falls over the land and runs off into streams and lakes flowing to the oceans. Pre c1pitation -,----- I Recharge to I water table Soil zone Water table Capillruy fringe Saturated zone below the water table (Ground water) Source: US Geological Survey Figure 4. Subsurface Water However, most of the precipitation that falls on land surfaces infiltrates into the ground (see Figure 4), where it either recharges shallow groundwater table aquifers and discharges to streams and springs, sustaining their base flow, or seeps into deeper GLOUCESTER COUNTY 3-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP confined aquifers, where it is stored for long periods and discharges regionally (see Figure 5). Human activities and development of the land can interfere with the natural water cycle, and in doing so, impact a watershed in many ways. RECHARGE AREA Corlon9d .aquif., SotKce: US Geological Su,vey lllollonnlo Figure 5. Groundwater Flow Paths Development can remove beneficial vegetation; replacing it with lawns or impervious cover, thus reducing evapotranspiration and infiltration. Clearing and grading removes depressions that store rainfall and encourage infiltration. Construction activities can also compact the soil and diminish infiltration, resulting in increased volumes and rates of stormwater runoff. Conversely, increased impervious areas that are connected to each other through gutters, channels, and storm sewers transport runoff more quickly than natural areas. Shortening runoff travel time increases the rainfall-runoff response in the watershed, causing flow in downstream waterways to reach peak rates faster and water levels to increase above natural conditions. These conditions aggravate downstream flooding and erosion and increase the quantity of sediment in stream flow and deposited in stream channels. Impervious areas and storm sewers reduce the potential for surface vegetation to filter and remove pollutants from runoff. Increased impervious area from land development can also decrease infiltration, and in turn, reduce stream base flow and groundwater recharge. Reductions in stream base flow can dry up habitat in stream channels and adjacent wetlands, and in so doing, adversely impact the health of important biological communities that reside in or depend upon these stream channels and wetlands. Increased impervious area can also increase peak stream flow, channel erosion, and sedimentation and thus can destroy aquatic habitat. Land development can result in the addition and accumulation of pollutants on the land surface. Runoff and infiltration can mobilize and transport these pollutants to groundwater and streams. Surfaces and cleared areas within a development can receive a variety of pollutants from the atmosphere and from runoff over land surfaces that mobilizes fertilizers, animal wastes, and leakage and corrosion from vehicles. The GLOUCESTER COUNTY 3-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP pollutants may include suspended and dissolved solids containing metals, nutrients and other inorganic compounds; hydrocarbons, pesticides, herbicides and other organic compounds; and pathogens--all of which can become mobilized by precipitation falling on the land. Land development can also adversely affect water quality and stream biota in subtle ways. Runoff stored in detention or retention basins can become heated, raising the temperature of the downstream waterway and adversely affecting cold water aquatic species, such as trout, and by providing conditions that support unwanted aquatic species. Additionally, development may remove trees along streams or cause stream bank instability that undermines nearby trees. These trees are valuable because they provide shade that maintains cooler water temperatures and increased dissolved oxygen levels during critical summer periods. Trees also help stabilize stream banks, preventing bank erosion, and their leaf litter provides habitat and food for aquatic communities. GLOUCESTER COUNTY 3-3 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 4. Background DEPTFORD TOWNSHIP Deptford Township is located in northern Gloucester County (see Figure 1). The Township's characteristics, as they relate to the stormwater management planning goals described in Section 2, are discussed in this background section of the MSWMP. Zoning and Existing Land Use Deptford Township is unique among the 24 municipalities in Gloucester County, for several reasons. In terms of both total area and land area (see Table 1), it is one of the larger municipalities in Gloucester County. Table 1. Deptford Township Area Area (sq. mi.) Total Area Land Area Water Area 17.58 17.50 0.08 With so much land area, its location in close proximity to Philadelphia, and its major highway access (Routes 55, 42 and I-295), Deptford Township has experienced significant development pressures. The Township's location makes it accessible to the major bridges into Philadelphia, as well as to the Atlantic City Expressway. The Deptford Mall has greatly increased employment opportunities in Deptford Township. The existing zoning is shown on Figure 6, and the existing land use, based on the DVRPC 2000 aerial land use analysis is shown on Figure 7. During the time period of 1990-2000, the housing stock in Deptford Township grew by 24.5% and more than 4,000 housing units were added during the thirty year period of 1970-2000. As of 2002, it was anticipated that much of Deptford's housing growth would occur in the Locust Grove Planned Unit Development, with a maximum of 2,172 non age-restricted units and 219 age-restricted units planned. The rate of development in Deptford Township has been fast, but the projected build-out development of the Township is still years away, given its geographic location, its size, and the amount of undeveloped land in the Township. GLOUCESTER COUNTY 4-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figure 6. Zoning GLOUCESTER COUNTY 4-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figure 7. Existing Land Use GLOUCESTER COUNTY 4-3 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Population and Housing The population of Deptford Township (see Table 2) is the 3rd largest total population in Gloucester County. Table 2 provides the urban population and rural population (if any) breakdown. With respect to housing, the Township also has the 3rd largest number of total housing units in Gloucester County and the number of urban and rural housing units (if any) are shown (see Table 2). Deptford Township is one of 11 municipalities in the County with no housing units classified as rural. Table 2. Deptford Township Population and Housing (Year 2000) Population Housing Units Total Urban Rural 26,763 26,763 0 Source: U.S. Census Bureau 10,647 10,647 0 Deptford Township is 11th of 24 municipalities in Gloucester County in terms of population density. Table 3. Deptford Township Population Density (1990 - 2003) Population Population Density (persons/sq. mi.) 1990 23,852 2000 26,763 2003 28,055 1,363 1,529 1,603 Source: U.S. Census Bureau and N.J. Department of Labor Deptford Township has been one of the faster growing municipalities in Gloucester County in recent years. Between 1990 and 2000, Deptford Township experienced 12 percent growth and the estimated growth from 2000 to 2003 is 1,292 or 5 percent (see Table 4). Table 4. Deptford Township Population Growth (1990 - 2003) Population Population Change Percent Growth 1990 23,852 2000 26,763 2,911 12 2003 28,055 1,292 5 Source: U.S. Census Bureau and N.J. Department of Labor GLOUCESTER COUNTY 4-4 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP The Delaware Valley Regional Planning Commission (DVRPC) projects Deptford Township to grow by 3,477 people over the 30-year period from 2000 to 2030 (see Table 5), with an overall growth of 13.0 percent during those three decades. Table 5. Deptford Township Projected Population Growth (2000 - 2030) Population Population Change Percent Growth 2000 26,763 2010 27,630 867 3.2 2020 28,790 1,160 4.2 2030 30,240 1,450 5.0 Source: DVRPC Surface Water (a) Watersheds and Hydrologic Unit Codes (HUCs) There are eight major Watersheds within Gloucester County. Each of these Watersheds and their land areas within the County are shown in Table 6. Also shown in Table 6 is a two character identification code used in this report to identify data tables and figures related to the individual watersheds. Table 6. Watersheds Within Gloucester County ID Watershed BT Big Timber Creek GE Great Egg Harbor River MC Mantua Creek MR Maurice River OC Oldman's Creek RA Raccoon Creek RE Repaupo Creek WC Woodbury Creek Area (acres) 12,925 36,997 32,099 47,177 14,558 31,822 26,222 13,787 215,587 Deptford Township is within three of these major watersheds, as shown in Table 7. GLOUCESTER COUNTY 4-5 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table 7. Deptford Township Watersheds ID Watershed BT Big Timber Creek MC Mantua Creek WC Woodbury Creek Total Area (acres) 5,574.34 3,530.56 2,139.13 11,244.03 The NJDEP requires that municipalities evaluate the impacts of their small municipal separate storm sewer systems (small MS4s) on surface waters at the HUC14 subwatershed level (these watershed and sub-watershed divisions were developed by the United States Geological Survey (USGS) using a coding system called Hydrological Unit Codes, or HUCs). Figure 8 shows the HUC14s located partially or entirely within the municipal boundaries of Deptford Township. The names of the HUC14s are shown in Table 8. (b) New Jersey Surface Water Quality Standards The Federal Clean Water Act requires that states maintain surface water quality in high quality waters and restore water quality in impaired waters. Surface Water Quality Standards (SWQS) have been developed by the NJDEP (and Delaware River Basin Commission (DRBC) for the Delaware River) to accomplish this goal. These standards establish "designated uses" to be achieved for surface water bodies and specify the water quality criteria necessary to achieve these uses. Designated uses established by the NJDEP for New Jersey water bodies include potable water supply (drinking water use), propagation of fish and wildlife (aquatic life use), recreation in and on the water (primary and secondary contact), agricultural and industrial supplies, and navigation. The NJDEP has established stream classifications and antidegradation designations for all of the state's surface water bodies. New Jersey's Water Quality and Monitoring Standards homepage can be found at the following link: http://www.state.nj.us/dep/wmm/ The Surface Water Quality Standards can be found in N.J.A.C. 7:9B at these links: http://www.state.nj.us/dep/wmm/sgwqt/swqsdocs.html http://www.state.nj.us/dep/wmm/sgwqt/sgwqt.html. In addition, because the Delaware River is an interstate water body, the Delaware River Basin Commission (DRBC) has established interstate zones, designated uses for each zone, and water quality standards to achieve the designated uses along the entire length of the river. Gloucester County adjoins the very lowest end of Zone 3, Zone 4 and the upper GLOUCESTER COUNTY 4-6 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figure 8. HUC14s GLOUCESTER COUNTY 4-7 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table 8. Deptford Township Watersheds and HUC14s Watersheds Big Timber Creek Mantua Creek Woodbury Creek No. 02040202120040 02040202120050 02040202120060 02040202120080 02040202130020 02040202130040 02040202130060 02040202120100 02040202120110 HUC14 Sub-Watersheds Name Big Timber Creek SB (including Bull Run to Lakeland Road Big Timber Creek SB (below Bull Run) Almonessen Creek Big Timber Creek (below NB/SB confluence) Mantua Creek (road to Sewell to Rt 47) Mantua Creek (Edwards Run to road to Sewell) Mantua Creek (below Edwards Run) Woodbury Creek (above Rt 45) Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek GLOUCESTER COUNTY 4-8 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP most portion of Zone 5. The DRBC's 2004 Delaware River and Bay Integrated List Water Quality Assessment Report, which contains the water quality standards for each zone (see Section 2.2), and the results of their 2004 Delaware River and Bay Water Quality Assessment, can be found at the following link: http://www.state.nj.us/drbc/04IntegratedList/index.htm. The Surface Water Quality Criteria for all classified waterways in the State depend on their designated uses and reflected Surface Water Classification. The Surface Water Quality Criteria are detailed in N.J.A.C. 7:9B-1.14 and are too voluminous to include in this report. (c) Impaired Waters States are required to prepare and submit to the USEPA a report that identifies waters that do not meet or are not expected to meet surface water quality standards (SWQS). This report is commonly referred to as the 303(d) list. In accordance with Section 305(b) of the CWA, the States are also required biennially to prepare and submit to the USEPA a report addressing the overall water quality of the State's waters. This report is commonly referred to as the 305(b) Report or the Water Quality Inventory Report. Those water bodies, which are listed on the 303(d) list, are referred to as "water quality limited" water bodies and a total maximum daily load (TMDL) must be developed for each individual pollutant in these impaired water bodies. In November 2001, the USEPA issued guidance that encouraged states to integrate 305(b) Report and the 303(d) List into one report. The New Jersey Department of Environmental Protection (NJDEP) chose to develop an Integrated Report for New Jersey starting in 2002. The 2004 Integrated List of Waterbodies combines these two assessments and assigns water bodies to one of five sublists. Sublists 1 through 4 include water bodies that are generally unimpaired. Sublist 5 of the 2004 Report supersedes Sublist 5 of the 2002 Integrated List and the new sublist presents all water quality limited waters and includes waters for which TMDL development is occurring or will occur within two years. The Sublists of water bodies in New Jersey are categorized as follows. Sublist 1 Sublist 2 - Sublist 3 Sublist 4 - water bodies that are attaining the water quality standards and no use is threatened. water bodies that are attaining some of the designated uses; no use is threatened; and insufficient or no data and information is available to determine if the remaining uses are attained or threatened. water bodies where there is insufficient or no data and information to determine if any designated use is attained. water bodies that are impaired or threatened for one or more designated uses but do not require the development of a TMDL [for the reasons described in Sublists 4A, 4B and 4C below]. GLOUCESTER COUNTY 4-9 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Sublist 4A. - TMDL has been completed. Sublist 4B - other pollution control requirements are reasonably expected to result in the attainment of the water quality standard in the near future. Sublist 4C - impairment is not caused by a pollutant. Sublist 5 - the water quality standard is not attained. The waterway is impaired or threatened for one or more designated uses by a pollutant(s) and requires a TMDL. The link to the most recent 2004 NJDEP Integrated Water Quality and Assessment Report is: http://www.state.nj.us/dep/wmm/sgwqt/wat/integratedlist/integratedlist2004.html For the purposes of evaluating surface water quality in Gloucester County, the Integrated Lists (Sublists 1-5) were abridged and sorted to include only those locations within the County. (See Watershed Surface Water Quality discussion(s) that follow) (d) Total Maximum Daily Loads (TMDLs) TMDLs are required, under Section 303(d) of the federal Clean Water Act, for water bodies that cannot meet surface water quality standards after the implementation of "technology-based" effluent limitations. TMDLs may also be established to help maintain or improve water quality in waters that are not impaired. Based on the 2002 and 2004 integrated list, the NJDEP entered into a Memorandum of Agreement with USEPA that sets out a schedule for completion of TMDLs. A TMDL allocates the load capacity to point sources in the form of waste load allocations (WLAs) and to non-point sources in the form of load allocations (LAs), and may also identify reserve capacity and a margin of safety. WLAs result in Water Quality Based Effluent Limits for point source Wastewater Treatment Plants and requirements based on Best Management Practices (BMPs) for regulated stormwater point sources, such as Combined Sewer Overflows (CSOs). Because non-point source pollution does not come from discrete sources, LAs generally identify broad categories of non-point sources that contribute to the parameters of concern. The LA then includes specific load reduction measures, through Best Management Practices (BMPs), that may include local ordinances for stormwater management and non-point source pollution control, headwaters protection practices, or other mechanisms for addressing the parameters of concern. A separate TMDL calculation must be prepared for each pollutant listed for each impaired stream segment or lake. A TMDL is considered "proposed" when the NJDEP publishes the TMDL Report as a proposed Water Quality Management Plan Amendment in the New Jersey Register (NJR) for public review and comment. A TMDL is considered "established" when the NJDEP finalizes the TMDL Report and formally GLOUCESTER COUNTY 4-10 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP submits it to EPA Region 2 for a thirty (30)-day review and approval. The TMDL is considered "approved" when the NJDEP-established TMDL is approved by EPA Region 2. The TMDL is considered "adopted" when the EPA-approved TMDL is adopted by the NJDEP as a water quality management plan amendment and the adoption notice is published in the NJR. The link to New Jersey's TMDLs and their status is: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro In the process of establishing a TMDL, an implementation plan is developed to identify how the various sources will be reduced to their designated allocations. Implementation strategies for non-point sources may include: improved stormwater management, the adoption of ordinances, reforestation of stream corridors, retrofitting stormwater systems, and other Best Management Practices to control stormwater runoff loadings. (e) Gloucester County's Impaired Waters There are about 27 different water bodies within Gloucester County that are considered impaired for their designated use, because they do not meet their respective water quality standards for one or more pollutant parameters. The impaired parameters include phosphorus, mercury, copper, silver, PCBs, dioxin, benthic macroinvertebrates, pH, fecal coliform, total coliform, and total suspended solids. The NJDEP has prepared or will prepare TMDLs for each water body and impaired parameter. . (See Watershed Surface Water Quality discussion(s) that follow) (f) Gloucester County's TMDLs At this time, the NJDEP has proposed 17 TMDLs that address impaired water bodies in Gloucester County. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . Fourteen of the 17 TMDL proposals were proposed by the NJDEP in April 2003 and were based on the 2002 Integrated Report. These TMDLs were approved in September 2003, but have not yet been adopted. Three of the 17 TMDL proposals were proposed by the NJDEP in May and July 2005, and these TMDLs have not yet established. Ground Water Gloucester County is located in the Atlantic Coastal Plain Physiographic Province. Beneath Gloucester County are a series of geologic units that form aquifers or aquifer systems and confining units (aquitards). The geologic units consist largely of layers of unconsolidated sediments of clays, silts, sands and gravels, deposited over many millions of years, and extending from the land surface, hundreds or thousands of feet to bedrock. These sand and gravel layers and units when grouped together form the aquifers or aquifer systems and the layers and units containing higher amounts of silts and clays GLOUCESTER COUNTY 4-11 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP when grouped together form the confining units. The geologic units in the County dip gently to the south-east, and they outcrop (and are exposed) in broad, irregular, northeast-southwest trending bands on the land surface. The oldest formations outcrop along and under the Delaware River, and progressively younger units outcrop in sequence, moving southeasterly towards the Atlantic Coast. There are several major coastal plain aquifers or aquifer systems which outcrop and are exposed in Gloucester County. Starting with the oldest and most westerly, they are: the Potomac-Raritan-Magothy (PRM) aquifer system, which outcrops along and under the Delaware River; the Englishtown aquifer system; the Wenonah-Mount Laurel aquifer; and the Kirkwood-Cohansey aquifer system. The Wenonah-Mount Laurel, Englishtown, and PRM aquifers are exposed in their respective outcrops, but dip into the subsurface, becoming semi-confined or confined at depth in a southeasterly direction. The Kirkwood-Cohansey aquifer system remains exposed throughout its outcrop and is exposed and unconfined within Gloucester County. There are a few other minor geologic units outcropping in the County that may yield very small amounts of water, including the Merchantville, Marshalltown and Vincentown Formations. However, because of their low permeability's, these formations are more often regarded as confining units. In addition to these minor geologic units, small, shallow, deposits of more recent sands with gravel from the Bridgeton, Pennsauken and Cape May Formations can be found on the surface in the County, particularly capping hills and along stream banks. The aquifers or aquifer systems in Gloucester County are separated by relatively impermeable geologic confining units that vary in thickness and in their confining ability, ranging from semi-confining to confining. These confining units also outcrop in broad, highly irregular, northeast-southwest trending bands on the land surface and are located between the aquifers' outcrops. Confining geologic units in the County, starting with the oldest and most westerly outcropping, are: the Woodbury-Merchantville (between the PRM and the Englishtown); the Marshalltown (between the Englishtown and the Wenonah-Mount Laurel); and the Hornerstown-Navesink-Vincentown (between the Wenonah-Mount Laurel and the Kirkwood-Cohansey). Water in the subsurface tends to move very slowly, if at all, from one aquifer system to another, because of the confining units between the aquifers. Minimizing the impacts of stormwater runoff on the ground water of Deptford Township is a primary goal of this MSWMP, as is protecting Deptford Township's surface waters. (a) Stormwater Runoff and Ground Water Recharge In New Jersey's Atlantic Coastal Plain, precipitation averages about 43.75 inches per year. On average, about 45 percent of the annual precipitation results in runoff (or about 19.75 inches per year), and about 55 percent of the precipitation is lost into the GLOUCESTER COUNTY 4-12 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP atmosphere as evapotranspiration. The infiltration, or groundwater recharge, component of runoff provides the base stream flow in the Atlantic Coastal Plain. At an average runoff rate of 19.75 inches per year, the maximum recharge rate of 15 inches per year indicates that as much as 75 percent of the runoff will recharge the ground water. The northwestern corner of Deptford Township is located on the outcrop of Woodbury Formation, a confining unit. The remaining portion of the Township west of the New Jersey Turnpike is located on the outcrop of the Englishtown Formation, a minor aquifer. A narrow band of the Marshalltown Formation confining unit outcrops just east of the New Jersey Turnpike. The central portion of Deptford Township east of the New Jersey Turnpike is located on the outcrop of the Wenonah-Mount Laurel aquifer. The southern portion of Deptford Township is located on the outcrops of the Navesink and Hornerstown Formations, which are confining units. A very small area along the southern boundary of the Township is located on the outcrop of the Kirkwood Formation. The Englishtown, the Wenonah-Mount Laurel and the Kirkwood aquifers' outcrops are susceptible to ground water contamination and their protection is important. The Englishtown, Wenonah-Mount Laurel and Kirkwood aquifers in Deptford Township may realize some minor benefit locally from ground water recharge in the outcrop, provided the recharge water is good quality. This recharge will also supplement nearby stream base flow. Ground water recharge on the outcrops of the confining units (Woodbury, Marshalltown, Navesink and Hornerstown Formations) will be minimal or non-existent. (b) Well head Protection Areas (WHPAs) Water supply wells in exposed unconfined aquifers depend on surface recharge to maintain groundwater levels and groundwater quality, thereby directly linking stormwater management and recharge with water supply. Largely because of this linkage, unconfined public community water supply (PCWS) wells and public noncommunity water supply (PNCWS) wells have designated "wellhead protection areas" (WHPAs). Water supply wells in the confined portions of aquifers, away from the exposed outcrop area, are not directly linked to surface recharge, and have no WHPAs. WHPAs establish the approximate area within which contamination, released on the surface, will travel to the well head, over the prescribed period of time. WHPAs include three tiers; the inner boundary, Tier 1, includes an area with a 2 year travel time, the middle boundary, Tier 2, includes an area with a 5 year travel time and the outer boundary, Tier 3, includes an area with a 12 year travel time. WHPAs serve as warning zones, within which high risk activities should be avoided, and further provide aprioritization for clean-up of surface and groundwater contamination that occurs within a WHPA. GLOUCESTER COUNTY 4-13 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Geology (surficial) and Wellhead Protection Areas in Deptford Township are shown on Figure 9. Deptford has ten confined PCWS wells which have no associated WHPAs. There are three small unconfined PNCWS wells with small WHPAs; one is at the intersection of the North-South Freeway and Hurffville Road, and two are along the southern boundary of the township. (c) New Jersey Groundwater Quality Standards The NJDEP's has established Ground Water Quality Standards (GWQSs) for all of the ground waters in the State of New Jersey (N.J.A.C. 7:9-6). Like the SWQSs, the GWQSs establish the designated uses for the State's ground water, and specify the ground water quality criteria for specific constituents, including toxic pollutants, consistent with those designated uses. The GWQSs establish classification areas according to the geographic extent (both vertical and horizontal) of geologic formations, or units, within which ground water is classified for the designated uses. Designated uses may include any human withdrawal of ground water (for example, for potable, agricultural or industrial water), the discharge of ground water to surface waters of the State which support human use or ecological systems, or the direct support of ecological systems. The GWQSs include three major classes of ground water: Class I Class II Class III Ground Water of Special Ecological Significance Ground Water for Potable Water Supply Ground Water With Uses Other Than Potable Water Supply Under the NJDEP GWQSs, the primary designated use for Class I ground waters is the maintenance of special ecological resources supported by the ground water within the classification area; secondary designated uses of Class I waters is use for potable water, agricultural water and industrial water, if these uses are viable using water of natural quality and do not impair the primary use (for example, by altering ground water quality). Class I ground water is further designated as either Class I-A (Exceptional Ecological Areas) or Class I-PL (Pinelands). Ground water within watersheds of FW-1 surface waters (a Category One surface water classification), and certain "Natural Areas" designated by the NJDEP in the GWQSs, are designated as Class I-A ground waters. GLOUCESTER COUNTY 4-14 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figure 9. Geology and Well Head Protection Areas GLOUCESTER COUNTY 4-15 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Class III ground waters are ground waters that are not suitable for potable use due to their natural hydrogeologic characteristics, such as aquitards - Class III-A ground water, or due to their natural water quality that is unsuitable for conversion to potable water, such as saline ground water (Class III-B). All ground waters in New Jersey not designated as Class I or Class III are designated as Class II ground waters. Class II ground waters are further classified as either Class II-A or Class II-B. The designated uses of Class II-B waters are any reasonable use other than potable use; however, the NJDEP has not designated any ground waters as Class II-B. Because of the different ground water quality criteria, the necessary stormwater management measures may vary among these areas. However, the three contaminants for which the NJDEP has required a projection of build-out stormwater pollutant loading are nitrogen, phosphorus and total suspended solids (see Section 5). These three pollutants are of particular significance with regard to surface water quality, but are not included in the list of constituent criteria for ground water. It is anticipated that ground water quality issues will not be a significant concern for new major development projects, if the projects comply with the new design and performance standards in N.J.A.C. 7:8. Soils One of the main objectives of the new NJDEP Stormwater Management Rules is to promote ground water recharge in order to replenish aquifers, maintain base flow in streams and assist in maintaining the groundwater supply. Ground water recharge is significantly affected by land use (e.g., commercial vs. agricultural uses), as well by the type of natural soil present on the ground surface. The National Resource Conservation Service (NRCS) has grouped soil types throughout the United States into four different Hydrologic Soil Groups (HSGs): A, B, C and D, depending on their infiltration ability and the potential rate of ground water recharge. Group A soils have high infiltration rates and recharge potential and provide little direct runoff. They generally include well-drained and sorted sands and gravels. Group B soils have moderately high recharge potential, while Group C soils have lower infiltration rates and generally include more silt and clay particles with higher direct runoff potential. Group D soils have very low recharge rates and a high direct runoff potential. Some soils may have two classifications depending on whether or not they contain soil layers with different infiltration characteristics. For example, a soil classified as A/D has both a Group A soil layer that is well-drained and a Group D soil layer that is poorly drained. The NJDEP's new stormwater regulations encourage new development in areas with soils that do not recharge significant amounts of water to aquifers; that is, in Group C and D soil areas. The regulations encourage the protection of the natural condition, infiltration and recharge rates in Group A or B soil areas. However, many Group D soil areas are located in wetlands or adjacent to wetlands and water bodies and these areas are not developable. It may not be possible to completely avoid disturbance and new development in Group A and B soil areas. But, the NJDEP's new stormwater regulations GLOUCESTER COUNTY 4-16 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP require equal amounts of ground water recharge before and after new development. Figure 10 depicts the hydrologic soil groupings in Deptford Township. Deptford Township soils are primarily moderately well draining Group B soils. The eastern end of the Township is characterized by more poorly draining Group B/D soils, which are also present in pockets in the central portion of the Township. GLOUCESTER COUNTY 4-17 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Figure 10. Soils GLOUCESTER COUNTY 4-18 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP BIG TIMBER CREEK WATERSHED Topography Figure BT-1 (see Appendix A) provides an aerial photograph (2000) of the Big Timber Creek Watershed and depicts general land use and other planimetric relationships within the watershed. It is a "birds-eye" view of the watershed that allows a quick assessment of watershed conditions as they existed at that time. This watershed appears generally to be an urbanized watershed. Figure BT-2 (see Appendix A) provides the USGS Quadrangle (topographic map) for this watershed. Relief (elevation difference) within the Big Timber Creek Watershed is about 194 feet, with elevations ranging from a low of 3.3 to a high of 197 feet above mean sea level. Lower elevations occur along the waterways and wetlands and higher elevations occur along the watershed's boundaries. The land surface elevations and relief in this watershed have been sculpted by surface runoff and erosion of the unconsolidated coastal plain sediments at the land surface. But, the relief in this watershed is generally small, although there are a few localized land areas with steeper slopes. Hills with steeper slopes, often capped by more erosion resistant sediments (gravels), can generally be found within the watershed, providing some structural control and forming drainage boundaries. The creek is about 17 miles long, and the average stream gradient (slope) along the length of the watershed's stream channel (the long profile) is 0.0014 (excluding any estuarine portions). In general, stream slopes within the watershed are extremely flat. In this watershed, surface drainage has eroded the land surface in dendritic drainage patterns that exhibit little structural control because of the relatively uniform resistance to erosion from the underlying sediments. Generally, the streams in the watershed consist of short straight sections connected by bends and kinks. For the most part, there is little or no stream braiding or meandering and stream channels are not heavily incised. The streams in the watershed appear to be "graded." Stream base level, stream gradient, channel section, sediment load and flow are in relative dynamic equilibrium. Uncontrolled development within the watershed could, however, change this equilibrium. Hydrology The main stem of Big Timber Creek and the south Branch form much of the boundary between Gloucester and Camden Counties. Because over 50 percent of the Big Timber Creek Watershed is outside of the County, neighboring municipalities in Camden County also impact the hydrology and water quality in the watershed. The area of Gloucester County which drains into Big Timber Creek is approximately 20 square miles. The only major tributary of the Creek within Gloucester County is Almonesson Creek. The River and its tributaries are shown on Figure BT-3 (see GLOUCESTER COUNTY 4-19 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Appendix A). In Gloucester County, this watershed contains six HUC14 sub-watersheds, and these are listed in Table BT-1. Surface Water Quality (a) Surface Water Classifications The surface waters in the Big Timber Creek Watershed are classified FW2-NT or FW2NT/SE2. The designated uses for surface water classification FW2-NT (non-trout fresh surface waters not designated as FW1 or PL) as described by the N.J.A.C. 7:9B-1.12(c) are: 1. Maintenance, migration and propagation of the natural and established biota; 2. Primary and secondary contact recreation; 3. Industrial and agricultural water supply; 4. Public potable water supply after conventional filtration treatment (a series of processes including filtration, flocculation, coagulation, and sedimentation, resulting in substantial particulate removal but no consistent removal of chemical constituents) and disinfection; and 5. Any other reasonable uses. The designated uses for surface water classification SE2 (saline waters of estuaries not designated as SE1 or SE3) as described by N.J.A.C. 7:9B-1.12(e) are: 1. Maintenance, migration and propagation of the natural and established biota; 2. Migration of diadromous fish; 3. Maintenance of wildlife; 4. Secondary contact recreation; and 5. Any other reasonable uses. The designated uses for surface water classification FW2-NT/SE2 are a combination of two classifications due to a salt water/fresh water interface. The location of the interface is determined by the salinity measurements. It is located where the salinity is equal to 3.5 parts per thousand (ppt) at mean high tide. This location can change dependent on a number of factors, such as tidal effects, rainfall amounts, evapotranspiration and freshwater input. The fresh water portions or where the salinity is below or equal to 3.5 ppt at mean high tide, are classified as FW2-NT and take on the designated uses as described above. The saline portions or where the salinity is above 3.5 ppt at mean high tide, are classified as SE-2 and take on the designated uses as described above. (b) Surface Water Quality Data Ambient Biomonitoring Network - The NJDEP has established an Ambient Biomonitoring Network (AMNET) to document the health of the state's waterways. There are over 800 AMNET sampling sites throughout the state of New Jersey. These GLOUCESTER COUNTY 4-20 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table BT-1. Big Timber Creek Watershed HUC14s Municipality Deptford Washington Township West Deptford Township Westville Borough Woodbury City No. 02040202120040 02040202120050 02040202120060 02040202120080 02040202120030 02040202120040 02040202120080 02040202120080 02040202120080 HUC14 Sub-Watershed Name Big Timber Creek SB (including Bull Run to Lakeland Road Big Timber Creek SB (below Bull Run) Almonessen Creek Big Timber Creek (below NB/SB confluence) Big Timber Creek SB (above Lakeland Rd) Big Timber Creek SB (including Bull Run to Lakeland Rd) Big Timber Creek (below NB/SB confluence) Big Timber Creek (below NB/SB confluence) Big Timber Creek (below NB/SB confluence) GLOUCESTER COUNTY 4-21 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP sites are sampled for benthic macroinvertebrates by the NJDEP on a five-year cycle. Streams are classified as non-impaired, moderately impaired, or severely impaired, based on the AMNET data. The data is used to generate a New Jersey Impairment Score (NJIS), which is based on a number of biometrics related to benthic macroinvertebrate community dynamics. The AMNET sites within this watershed are shown in Figure BT4 (see Appendix A) and the most recent AMNET scores for Impaired Waters within this watershed are included in Appendix B. Conventional Water Quality Data - The NJDEP utilizes conventional surface water quality data from a number of sources to bi-annually evaluate the impairment of surface water bodies. These water quality data include the federal Storage and Retrieval repository (STORET) data and other Existing Sources. The STORET and Existing Sources sampling locations within this watershed are shown in Figure BT-4 (see Appendix A) and the most recent data for Impaired Waters within this watershed are included in Appendix B. (c) Impaired Waters For the purpose of evaluating surface water quality in this watershed, the NJDEP Integrated List (Sublists 1-5) were abridged and sorted to provide the locations of impaired waters within this watershed and these are listed in Table BT-2. A map showing the locations of impaired water is included as Figure BT-4 (Appendix A). There are seven (7) different sites within this watershed that are considered impaired for their designated uses, because they do not meet their respective water quality standards for one or more pollutant parameters. The impaired parameters include: phosphorus, mercury, benthic macroinvertebrates, and fecal coliform. Table BT-2. Big Timber Creek Impaired Waters List No. Location 1. Big Timber Creek Parameter Mercury Priority High 2. S. Br. Big Timber Creek at Phosphorus Almonesson Rd. in Blenheim Medium 3a. S. Br. Big Timber Creek at Blackwood Terrace Phosphorus Medium 3b. S. Br. Big Timber Creek at Fecal Coliform High Blackwood Terrace 4. S. Br. Big Timber Creek at Benthic Macroinvertebrates Low Turnersville - Sicklerville Rd in Washington 5. Grenloch Lake Phosphorus Medium 6. S. Br. Big Timber Creek at Grenlock Fecal Coliform High 7. Blackwood Lake Phosphorous Medium GLOUCESTER COUNTY 4-22 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP (d) TMDL Proposals The NJDEP has proposed four (4) sets of TMDLs that address impaired water bodies in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . Three of the four sets of TMDLS were proposed by the NJDEP in April 2003 and were based on the 2002 Integrated Report. These TMDLs were approved in September 2003, but have not yet been adopted. One of the four sets of TMDLs was proposed by the NJDEP in July 2005 and is not yet established. A list of this watershed's TMDL proposals including the impaired water bodies, the addressed parameter and their current adoption status is included in Table BT-3. The locations of TMDLs in this watershed are shown on Figure BT-4 (Appendix A). Table BT-3. Big Timber Creek TMDL Proposals Location S. Br. Big Timber Creek at Grenlock S. Br. Big Timber Creek at Blackwood Terrace Blackwood Lake S. Br. Big Timber Creek at Blackwood Terrace Parameter Fecal Coliform Fecal Coliform Phosphorus Phosphorus Status Approved September 2003 Approved September 2003 Approved September 2003 Proposed July 5, 2005 TMDLs were proposed for fecal coliform for the South Branch Big Timber Creek at Grenlock and the South Branch Big Timber Creek at Blackwood Terrace. Waste load allocation reductions were proposed. The TMDL proposals describe the possible sources of fecal coliform as well as the method for developing the TMDL and remediation plan. (See Section 8 Water Quality-TMDL Stormwater Management Strategies.) TMDLs were proposed for phosphorous for the South Branch of Big Timber Creek at Blackwood Terrace and for Blackwood Lake on the South Branch of Big Timber Creek. Waste load allocation reductions were proposed. The TMDL proposal describes possible sources of phosphorous and the method for developing the TMDL and remediation plan. (See Section 8 Water Quality-TMDL Stormwater Management Strategies.) Category One Waters There are no Category One waters in the Gloucester County portion of this watershed. However, there are Category One waters in the Camden County portion of the watershed. GLOUCESTER COUNTY 4-23 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Hydrogeology The eastern half of the Big Timber Creek Watershed within Gloucester County, to approximately the Washington Township/Deptford Township boundary, is in the exposed outcrop of the Kirkwood-Cohansey aquifer system, which is unconfined at the surface and provides the water table aquifer in this watershed. Moving west across the watershed, the other aquifers and confining units in the County outcrop in narrow irregular bands. The Wenonah-Mount Laurel, Englishtown, and PRM aquifers or aquifer systems are exposed in their respective outcrops, but dip into the subsurface, becoming semi-confined or confined at depth in a southeasterly direction. In this watershed, the exposed outcrops of these four aquifers are susceptible to contamination from development, stormwater runoff and the quality of groundwater recharge. Soils Over half of the drainage area of Big Timber Creek is covered by Group B or moderately well-draining soils. These Group B soils are predominant in the eastern side of the watershed. Between Route 47 and the boundary between Deptford and Washington Townships, there is an area of Group C and C/D soils, as in the area in Deptford Township between Route 544 and the New Jersey Turnpike. Figure BT-5 (see Appendix A) shows the potential amounts of infiltration and ground water recharge throughout the watershed. Critical Habitats The NJDEP Division of Fish and Wildlife Endangered Nongame Species Program developed a Geographic Information System (GIS) called the Landscape Project, which is described as a "pro-active, ecosystem-level approach to the long-term protection of imperiled and priority species and their important habitats in New Jersey." Version 2 of the Landscape project is now available interactively on the web and for download. According to the NJDEP's Metadata, "Version 2 was created by intersecting imperiled and priority species data with NJDEP 1995/97 Land Use/Land Cover update. The resulting data layer identifies, delineates and ranks (based on the conservation status of species present) habitat statewide. Each patch is coded for the number of sightings of priority, state threatened, state endangered and federally listed species present. The data is designed to be used for state and local planning, open space acquisition and land-use regulation." The NJDEP Division of Fish and Wildlife describes the Landscape Project and the importance of preserving natural habitat as follows: GLOUCESTER COUNTY 4-24 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP New Jersey is the most densely populated state in the nation. One of the consequences of this distinction is the extreme pressure that is placed on our natural resources. As the population grows, we continue to lose or impact the remaining natural areas of the state. As more and more habitat is lost, people are beginning to appreciate the benefits and necessity of maintaining land in its natural state. For example, we know that wetlands are critical for recharging aquifers, lessening the damage from flooding and naturally breaking down contaminants in the environment. Forests and grasslands protect the quality of our drinking water, help purify the air we breathe and provide important areas for outdoor recreation. Collectively, these habitats are of critical importance to the diverse assemblage of wildlife found in New Jersey, including more than 70 species classified as threatened or endangered. Many imperiled species require large contiguous tracts of habitat for survival. The consequence of the rapid spread of suburban sprawl is the loss and fragmentation of important wildlife habitat and the isolation and degradation of the smaller habitat patches that remain. Small patches of fields, forests and wetlands interspersed with development provide habitat for common species that do well living near humans, but do not provide the necessary habitat for most of our imperiled wildlife. We need to protect large, contiguous blocks of forest, grassland and wetlands to assure the survival of imperiled species over the long-term. In addition to providing habitat for the conservation of imperiled species, protecting critical wildlife areas will result in more open space for outdoor recreation. Recent surveys by the U.S. Fish and Wildlife Service show that more than 60% of Americans participate in some form of wildliferelated recreation. Open spaces provide places where people can escape the confines of urban and suburban living. Most critical habitats are supported in part or in total by the surrounding surface and ground water resources, and they are consequently impacted by development, non-point source pollution and stormwater runoff. Critical Habitats mapped by the NJDEP's Landscape Project within this watershed are shown on Figure BT-6. These Critical Habitats within this watershed may include Grassland, Forest, Forested Wetland, Emerging Wetland, Beach, Bald Eagle Foraging, Urban Peregrine Falcon Nesting, and Wood Turtle habitats that should, to the extent practical, be conserved and protected from the adverse impacts caused by uncontrolled development and stormwater runoff. GLOUCESTER COUNTY 4-25 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP MANTUA CREEK WATERSHED Topography Figure MC-1 (see Appendix A) provides an aerial photograph (2000) of the Mantua Creek Watershed and depicts general land use and other planimetric relationships within the watershed. It is a "birds-eye" view of the watershed that allows a quick assessment of watershed conditions as they existed at that time. This watershed appears generally to be an urbanized and rural watershed. Figure MC-2 (see Appendix A) provides the USGS Quadrangle (topographic map) for this watershed. Relief (elevation difference) within the Mantua Creek Watershed is about 160 feet, with elevations ranging from a low of 3.3 to a high of 164 feet above mean sea level. Lower elevations occur along the waterways and wetlands and higher elevations occur along the watershed's boundaries. The land surface elevations and relief in this watershed have been sculpted by surface runoff and erosion of the unconsolidated coastal plain sediments at the land surface. But, the relief in this watershed is generally small, although there are some localized land areas with steeper slopes. Hills with steeper slopes, often capped by more erosion resistant sediments (gravels), can generally be found within the watershed, providing some structural control and forming drainage boundaries. The stream is about 18 miles long, and the average stream gradient (slope) along the length of the watershed's stream channel (the long profile) is 0.0015 (excluding any estuarine portions). In general, stream slopes within the watershed are extremely flat. In this watershed, surface drainage has eroded the land surface in dendritic drainage patterns that exhibit little structural control because of the relatively uniform resistance to erosion from the underlying sediments. Generally, the streams in the watershed consist of short straight sections connected by bends and kinks. For the most part, there is little or no stream braiding or meandering and stream channels are not heavily incised. The streams in the watershed appear to be "graded." Stream base level, gradient, channel section, sediment load and flow are in relative dynamic equilibrium. Uncontrolled development within the watershed could, however, upset this equilibrium. Hydrology From its headwaters in Glassboro, Mantua Creek flows 18.6 miles northwest to the Delaware River at Paulsboro, draining an area of 50 square miles. Major tributaries include the Chestnut Branch (7 miles long), Edwards Run (6.9 miles long) and Duffield Run (Federation of Gloucester County Watersheds). Mantua Creek and its tributaries are shown on Figure MC-3. This watershed contains 6 HUC14 sub-watersheds and these are listed in Table MC-1. GLOUCESTER COUNTY 4-26 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table MC-1. Mantua Creek Watershed HUC14s Municipality Mantua Township Washington Township Deptford Township Glassboro Borough East Greenwich Township West Deptford Township Harrison Township Pitman Borough Paulsboro Borough Wenonah Borough Greenwich Township Monroe Township Woodbury Heights Borough No. 02040202130020 02040202130030 02040202130040 02040202130050 02040202130010 02040202130020 02040202130040 02040202130020 02040202130040 02040202130060 02040202130010 02040202130020 02040202130030 02040202130040 02040202130050 02040202130060 02040202130040 02040202130060 02040202130030 02040202130050 02040202130010 02040202130020 02040202130030 02040202130060 02040202130040 02040202130060 02040202130010 02040202130040 HUC14 Sub-Watershed Name Mantua Creek (road to Sewell to Rt 47) Chestnut Branch (above Sewell) Mantua Creek (Edwards Run to road to Sewell) Edwards Run Mantua Creek (above Rt 47) Mantua Creek (road to Sewell to Rt 47) Mantua Creek (Edwards Run to road to Sewell) Mantua Creek (road to Sewell to Rt 47) Mantua Creek (Edwards Run to road to Sewell) Mantua Creek (below Edwards Run) Mantua Creek (above Rt 47) Mantua Creek (road to Sewell to Rt 47) Chestnut Branch (above Sewell) Mantua Creek (Edwards Run to road to Sewell) Edwards Run Mantua Creek (below Edwards Run) Mantua Creek (Edwards Run to road to Sewell) Mantua Creek (below Edwards Run) Chestnut Branch (above Sewell) Edwards Run Mantua Creek (above Rt 47) Mantua Creek (Road to Sewell to Rt 47) Chestnut Branch (above Sewell) Mantua Creek (below Edwards Run) Mantua Creek (Edwards Run to road to Sewell) Mantua Creek (below Edwards Run) Mantua Creek (above Rt 47) Mantua Creek (Edwards Run to road to Sewell) GLOUCESTER COUNTY 4-27 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Surface Water Quality (a) Surface Water Classifications The surface waters in the Mantua Creek Watershed are classified FW2-NT/SE2. The designated uses for surface water classification FW2-NT (non-trout fresh surface waters not designated as FW1 or PL) as described by the N.J.A.C. 7:9B-1.12(c) are: 1. Maintenance, migration and propagation of the natural and established biota; 2. Primary and secondary contact recreation; 3. Industrial and agricultural water supply; 4. Public potable water supply after conventional filtration treatment (a series of processes including filtration, flocculation, coagulation, and sedimentation, resulting in substantial particulate removal but no consistent removal of chemical constituents) and disinfection; and 5. Any other reasonable uses. The designated uses for surface water classification SE2 (saline waters of estuaries not designated as SE1 or SE3) as described by N.J.A.C. 7:9B-1.12(e) are: 1. Maintenance, migration and propagation of the natural and established biota; 2. Migration of diadromous fish; 3. Maintenance of wildlife; 4. Secondary contact recreation; and 5. Any other reasonable uses. The designated uses for surface water classification FW2-NT/SE2 are a combination of two classifications due to a salt water/fresh water interface. The location of the interface is determined by the salinity measurements. It is located where the salinity is equal to 3.5 parts per thousand (ppt) at mean high tide. This location can change dependent on a number of factors, such as tidal effects, rainfall amounts, evapotranspiration and freshwater input. The fresh water portions or where the salinity is below or equal to 3.5 ppt at mean high tide, are classified as FW2-NT and take on the designate uses as described above. The saline portions or where the salinity is above 3.5 ppt at mean high tide, are classified as SE-2 and take on the designated uses as described above. (b) Surface Water Quality Data Ambient Biomonitoring Network - The NJDEP has established an Ambient Biomonitoring Network (AMNET) to document the health of the state's waterways. There are over 800 AMNET sampling sites throughout the state of New Jersey. These sites are sampled for benthic macroinvertebrates by the NJDEP on a five-year cycle. Streams are classified as non-impaired, moderately impaired, or severely impaired, based on the AMNET data. The data is used to generate a New Jersey Impairment Score GLOUCESTER COUNTY 4-28 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP (NJIS), which is based on a number of biometrics related to benthic macroinvertebrate community dynamics. The AMNET sites within this watershed are shown in Figure MC4 (see appendix A) and the most recent AMNET scores for Impaired Waters within this watershed are included in Appendix B. Conventional Water Quality Data - The NJDEP utilizes conventional surface water quality data from a number of sources to bi-annually evaluate the impairment of surface water bodies. These water quality data include the federal Storage and Retrieval repository (STORET) data and other Existing Sources. The STORET and Existing Sources sampling locations within this watershed are shown in Figure MC-4 (Appendix A) and the most recent data for Impaired Waters within this watershed are included in Appendix B. (c) Impaired Waters For the purpose of evaluating surface water quality in this watershed, the NJDEP Integrated List (Sublists 1-5) were abridged and sorted to provide the locations of impaired waters within this watershed and these are listed in Table MC-2. A map showing the locations of impaired water is included as Figure MC-4 (Appendix A). There are eight (8) different sites within this watershed that are considered impaired for their designated uses, because they do not meet their respective water quality standards for one or more pollutant parameters. The impaired parameters include: phosphorus, mercury, benthic macroinvertebrates, and fecal coliform. Table MC-2. Mantua Creek Impaired Waters List No. Location Parameter Priority 1(a). Edwards Run at Jefferson Fecal Coliform High 1(b). Edwards Run at Jefferson Phosphorous Medium 2. Edwards Run at Jessup Mill Rd in Mantua Benthic Macroinvertebrates Low 3. Mantua Creek at Mantua Ave in Wenonah Benthic Macroinvertebrates Low 4. Mantua Creek at Rt 45 in W. Deptford Phosphorus Medium 5(a). Alcyon Lake Mercury High 5(b). Alcyon Lake Phosphorous Medium 6. Chestnut Branch at Mantua Blvd. in Mantua Benthic Macroinvertebrates Low 7. Plank Run at Rte. 322 in Harrison Benthic Macroinvertebrates Low 8. Bethel Lake Phosphorous Medium (d) TMDL Proposals The NJDEP has proposed two TMDLs to address impaired water bodies in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . GLOUCESTER COUNTY 4-29 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP The first TMDL was proposed by the NJDEP in April 2003 for fecal coliform and is based on the 2002 Integrated Report. This TMDL was approved in September 2003, but has not yet been adopted. The other TMDL was proposed by the NJDEP in May 2005 for phosphorous and is not yet established. A list of this watershed's TMDL proposals is included in Table MC-3. The locations of TMDLs in this watershed are shown on Figure MC-4 (Appendix A). Table MC-3. Mantua Creek TMDL Proposals Location Edwards Run at Jefferson Bethel Lake Parameter Fecal Coliform Phosphorous Status Proposed May 2, 2005 Approved September 2003 The fecal coliform TMDL was proposed for Edwards Run at Jefferson. Waste load allocation reductions were proposed for the affected waterway. The proposal discusses the possible sources of fecal coliform, as well as the method for developing a TMDL and remediation plan. The TMDL for phosphorous was proposed for Bethel Lake. Waste load allocation reductions have been proposed. The TMDL proposal discusses possible sources of phosphorous as well as the method for developing the TMDL and remediation plan. Category One Waters The Mantua Creek Watershed does not have any Category One Waterways. Hydrogeology The eastern portion of the Mantua Creek Watershed (to approximately the Washington Township/Deptford divide) is underlain by the Kirkwood-Cohansey aquifer system, which is unconfined at the surface and provides the water table aquifer in this portion of Gloucester County. Moving west across the watershed, the other aquifers and confining units in the County outcrop in narrow irregular bands. The Wenonah-Mount Laurel, Englishtown, and PRM aquifers or aquifer systems are exposed in their respective outcrops, but dip into the subsurface, becoming semi-confined or confined at depth in a southeasterly direction. In this watershed, the exposed outcrops of these four aquifers are susceptible to contamination from development, stormwater runoff and the quality of groundwater recharge. GLOUCESTER COUNTY 4-30 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Soils Soils in the Mantua Creek Watershed are non-uniform in their distribution. The municipal centers of Pitman and Glassboro contain mostly urban soils. Poorly draining Group D soils dominate near the mouth of Mantua Creek. Otherwise, moderately welldraining patches of Group B soils are scattered amongst soils with lower recharge capacities. Figure MC-5 (see Appendix A) shows the potential amounts of infiltration and ground water recharge throughout the watershed Critical Habitats The NJDEP Division of Fish and Wildlife Endangered Nongame Species Program developed a Geographic Information System (GIS) called the Landscape Project, which is described as a "pro-active, ecosystem-level approach to the long-term protection of imperiled and priority species and their important habitats in New Jersey." Version 2 of the Landscape project is now available interactively on the web and for download. According to the NJDEP's Metadata, "Version 2 was created by intersecting imperiled and priority species data with NJDEP 1995/97 Land Use/Land Cover update. The resulting data layer identifies, delineates and ranks (based on the conservation status of species present) habitat statewide. Each patch is coded for the number of sightings of priority, state threatened, state endangered and federally listed species present. The data is designed to be used for state and local planning, open space acquisition and land-use regulation." The NJDEP Division of Fish and Wildlife describes the Landscape Project and the importance of preserving natural habitat as follows: New Jersey is the most densely populated state in the nation. One of the consequences of this distinction is the extreme pressure that is placed on our natural resources. As the population grows, we continue to lose or impact the remaining natural areas of the state. As more and more habitat is lost, people are beginning to appreciate the benefits and necessity of maintaining land in its natural state. For example, we know that wetlands are critical for recharging aquifers, lessening the damage from flooding and naturally breaking down contaminants in the environment. Forests and grasslands protect the quality of our drinking water, help purify the air we breathe and provide important areas for outdoor recreation. Collectively, these habitats are of critical importance to the diverse assemblage of wildlife found in New Jersey, including more than 70 species classified as threatened or endangered. Many imperiled species require large contiguous tracts of habitat for survival. The consequence of the rapid spread of suburban sprawl is the loss and fragmentation of important wildlife habitat and the isolation and GLOUCESTER COUNTY 4-31 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP degradation of the smaller habitat patches that remain. Small patches of fields, forests and wetlands interspersed with development provide habitat for common species that do well living near humans, but do not provide the necessary habitat for most of our imperiled wildlife. We need to protect large, contiguous blocks of forest, grassland and wetlands to assure the survival of imperiled species over the long-term. In addition to providing habitat for the conservation of imperiled species, protecting critical wildlife areas will result in more open space for outdoor recreation. Recent surveys by the U.S. Fish and Wildlife Service show that more than 60% of Americans participate in some form of wildliferelated recreation. Open spaces provide places where people can escape the confines of urban and suburban living. Most critical habitats are supported in part or in total by the surrounding surface and ground water resources, and they are consequently impacted by development, non-point source pollution and stormwater runoff. Critical Habitats mapped by the NJDEP's Landscape Project within this watershed are shown on Figure MC-6 (see Appendix A). The Critical Habitats within this watershed may include Grassland, Forest, Forested Wetland, Emerging Wetland, Beach, Bald Eagle Foraging, Urban Peregrine Falcon Nesting, and Wood Turtle habitats that should, to the extent practical, be conserved and protected from the adverse impacts caused by uncontrolled development and stormwater runoff. GLOUCESTER COUNTY 4-32 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP WOODBURY CREEK WATERSHED Topography Figure WC-1 (see Appendix A) provides an aerial photograph (2000) of the Woodbury Creek Watershed and depicts general land use and other planimetric relationships within the watershed. It is a "birds-eye" view of the watershed that allows a quick assessment of watershed conditions as they existed at that time. This watershed appears generally to be an urbanized watershed. Figure WC-2 (see Appendix A) provides the USGS Quadrangle (topographic map) for this watershed. Relief (elevation difference) within the Woodbury Creek Watershed is about 95 feet, with elevations ranging from a low of 3.3 to a high of 98 feet above mean sea level. Lower elevations occur along the waterways and wetlands and higher elevations occur along the watershed's boundaries. The land surface elevations and relief in this watershed have been sculpted by surface runoff and erosion of the unconsolidated coastal plain sediments at the land surface. But, the relief in this watershed is generally small, although there are a few localized land areas with steeper slopes. Hills with steeper slopes, often capped by more erosion resistant sediments (gravels), can generally be found within the watershed, providing some structural control and forming drainage boundaries. The Creek is about 5 miles long, and the average stream gradient (slope) along the length of the watershed's stream channel (the long profile) is 0.001 (excluding any estuarine portions). In general, stream slopes within the watershed are extremely flat. In this watershed, surface drainage has eroded the land surface in dendritic drainage patterns that exhibit little structural control because of the relatively uniform resistance to erosion from the underlying sediments. Generally, the streams in the watershed consist of short straight sections connected by bends and kinks. For the most part, there is little or no stream braiding or meandering and stream channels are not heavily incised. The streams in the watershed appear to be "graded." Stream base level, gradient, channel section, sediment load and flow are in relative dynamic equilibrium. Uncontrolled development within the watershed could, however, upset this equilibrium. Hydrology The Woodbury Creek Watershed is the smallest watershed fully contained in Gloucester County, draining an area of approximately 21.5 square miles into this five mile-long stream. Woodbury Creek's two major tributaries are Hessian Run and Matthews Branch. The River and its tributaries are shown on Figure WC-3 (see appendix A). In Gloucester County, this watershed contains 3 HUC14 sub-watersheds and these are listed in Table WC-1. GLOUCESTER COUNTY 4-33 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Table WC-1. Woodbury Creek Watershed HUC14s Municipality West Deptford Township Deptford Township Woodbury City Woodbury Heights Borough National Park Borough HUC14 Sub-Watershed No. 02040202120110 02040202120120 02040202120100 02040202120110 02040202120100 02040202120110 02040202120100 02040202120110 02040202120110 02040202120120 Name Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Main Ditch / Little Mantua Creek Woodbury Creek (above Rt 45) Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Woodbury Creek (above Rt 45) Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Woodbury Creek (above Rt 45) Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Main Ditch/Little Mantua Creek GLOUCESTER COUNTY 4-34 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Surface Water Quality (a) Surface Water Classifications The surface waters in the Woodbury Creek Watershed are classified FW2-NT/SE2 or FW2-NT. The designated uses for surface water classification FW2-NT (non-trout fresh surface waters not designated as FW1 or PL) as described by the N.J.A.C. 7:9B-1.12(c) are: 6. Maintenance, migration and propagation of the natural and established biota; 7. Primary and secondary contact recreation; 8. Industrial and agricultural water supply; 9. Public potable water supply after conventional filtration treatment (a series of processes including filtration, flocculation, coagulation, and sedimentation, resulting in substantial particulate removal but no consistent removal of chemical constituents) and disinfection; and 10. Any other reasonable uses. The designated uses for surface water classification SE2 (saline waters of estuaries not designated as SE1 or SE3) as described by N.J.A.C. 7:9B-1.12(e) are: 6. Maintenance, migration and propagation of the natural and established biota; 7. Migration of diadromous fish; 8. Maintenance of wildlife; 9. Secondary contact recreation; and 10. Any other reasonable uses. The designated uses for surface water classification FW2-NT/SE2 are a combination of two classifications due to a salt water/fresh water interface. The location of the interface is determined by the salinity measurements. It is located where the salinity is equal to 3.5 parts per thousand (ppt) at mean high tide. This location can change dependent on a number of factors, such as tidal effects, rainfall amounts, evapotranspiration and freshwater input. The fresh water portions or where the salinity is below or equal to 3.5 ppt at mean high tide, are classified as FW2-NT and take on the designate uses as described above. The saline portions or where the salinity is above 3.5 ppt at mean high tide, are classified as SE-2 and take on the designated uses as described above. (b) Surface Water Quality Data Ambient Biomonitoring Network - The NJDEP has established an Ambient Biomonitoring Network (AMNET) to document the health of the state's waterways. There are over 800 AMNET sampling sites throughout the state of New Jersey. These sites are sampled for benthic macroinvertebrates by the NJDEP on a five-year cycle. Streams are classified as non-impaired, moderately impaired, or severely impaired, based GLOUCESTER COUNTY 4-35 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP on this AMNET data. The data is used to generate a New Jersey Impairment Score (NJIS), which is based on a number of biometrics related to benthic macroinvertebrate community dynamics. The AMNET sites within this watershed are shown on Figure WC-4 (see Appendix A) and the most recent AMNET scores for Impaired Waters within this watershed are included in the data in Appendix B. Conventional Water Quality Data - The NJDEP utilizes conventional surface water quality data from a number of sources to bi-annually evaluate the impairment of surface water bodies. These water quality data include the federal Storage and Retrieval repository (STORET) data and other Existing Sources. The STORET and Existing Sources sampling locations within this watershed are shown in Figure WC-4 and the most recent data for Impaired Waters within this watershed are included in the data in Appendix B (c) Impaired Waters For the purpose of evaluating surface water quality in this watershed, the NJDEP Integrated List (Sublists 1-5) were abridged and sorted to provide the locations of impaired waters within this watershed and these are listed in Table WC-2. A map showing the locations of impaired water is included as Figure WC-4 (Appendix A). There are four (4) different sites within this watershed that are considered impaired for their designated uses, because they do not meet their respective water quality standards for one or more pollutant parameters. The impaired parameters include: phosphorus, PCBs, dioxin and pH. Table WC-2. Woodbury Creek Impaired Waters List No. Location 1. Bell Lake Parameter Phosphorous 2. Woodbury Lake Phosphorous 3a. Stewart Lake PCBs 3b. Stewart Lake Dioxin 4. Woodbury Creek at Rte. 45, pH Woodbury Ck. Park in Woodbury Priority Medium Medium High High Medium (d) TMDL Proposals The NJDEP has proposed two (2) sets of TMDLs that address impaired water bodies in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . GLOUCESTER COUNTY 4-36 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Both of the sets of TMDLS were proposed by the NJDEP in April 2003 and were based on the 2002 Integrated Report. These TMDLs were approved in September 2003, but have not yet been adopted. A list of this watershed's TMDL proposals is included in Table WC-3. The locations of TMDLs in this watershed are shown on Figure WC-4 Water Quality (Appendix A). Table WC-3. Woodbury Creek TMDL Proposals Location Bell Lake Woodbury Lake Parameter Phosphorous Phosphorous Status Approved September 2003 Approved September 2003 There are TMDL proposals for phosphorous in Bell Lake and Woodbury Lake. Waste load allocation reductions have been proposed for the affected waterways. The TMDL proposals discuss possible sources as well as the methods used to develop the TMDLs and remediation plan. (See Section 8 Water Quality-TMDL Stormwater Management Strategies). Category One Waters There are no Category One waters in the Woodbury Creek Watershed. Hydrogeology The western portion of the Woodbury Creek Watershed, to approximately the eastern edge of National Park Borough, is in the exposed outcrop of the PRM aquifer system, which is unconfined at the surface and provides the water table aquifer in this portion of the watershed. The central portion of the watershed is on the outcrop of the WoodburyMerchantville confining unit. The eastern portion of the Woodbury Creek Watershed is on the outcrops of (west to east) the Englishtown aquifer, the Marshalltown confining unit (beginning at about the New Jersey Turnpike and the Wenonah-Mount Laurel aquifer near the eastern headwaters of the aquifer. In this watershed, the exposed outcrops of these aquifers are susceptible to contamination from development, stormwater runoff and the quality of groundwater recharge. Soils The Woodbury Creek watershed is highly developed, with approximately one third of its soils categorized as "Urban". The watershed has over one third of its area covered by moderately well-drained Group B soils, primarily in the eastern portion of the watershed and in the northern corner. There is a significant area of National Park and east of National Park characterized by high recharge or Group A soils. Hydric soils and GLOUCESTER COUNTY 4-37 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP wetlands are scattered throughout the watershed. Figure WC-5 (see Appendix A) shows the potential amounts of infiltration and ground water recharge throughout the watershed. Critical Habitats The NJDEP Division of Fish and Wildlife Endangered Nongame Species Program developed a Geographic Information System (GIS) called the Landscape Project, which is described as a "pro-active, ecosystem-level approach to the long-term protection of imperiled and priority species and their important habitats in New Jersey." Version 2 of the Landscape project is now available interactively on the web and for download. According to the NJDEP's Metadata, "Version 2 was created by intersecting imperiled and priority species data with NJDEP 1995/97 Land Use/Land Cover update. The resulting data layer identifies, delineates and ranks (based on the conservation status of species present) habitat statewide. Each patch is coded for the number of sightings of priority, state threatened, state endangered and federally listed species present. The data is designed to be used for state and local planning, open space acquisition and land-use regulation." The NJDEP Division of Fish and Wildlife describes the Landscape Project and the importance of preserving natural habitat as follows: New Jersey is the most densely populated state in the nation. One of the consequences of this distinction is the extreme pressure that is placed on our natural resources. As the population grows, we continue to lose or impact the remaining natural areas of the state. As more and more habitat is lost, people are beginning to appreciate the benefits and necessity of maintaining land in its natural state. For example, we know that wetlands are critical for recharging aquifers, lessening the damage from flooding and naturally breaking down contaminants in the environment. Forests and grasslands protect the quality of our drinking water, help purify the air we breathe and provide important areas for outdoor recreation. Collectively, these habitats are of critical importance to the diverse assemblage of wildlife found in New Jersey, including more than 70 species classified as threatened or endangered. Many imperiled species require large contiguous tracts of habitat for survival. The consequence of the rapid spread of suburban sprawl is the loss and fragmentation of important wildlife habitat and the isolation and degradation of the smaller habitat patches that remain. Small patches of fields, forests and wetlands interspersed with development provide habitat for common species that do well living near humans, but do not provide the necessary habitat for most of our imperiled wildlife. We need to protect large, contiguous blocks of forest, grassland and wetlands to assure the survival of imperiled species over the long-term. GLOUCESTER COUNTY 4-38 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP In addition to providing habitat for the conservation of imperiled species, protecting critical wildlife areas will result in more open space for outdoor recreation. Recent surveys by the U.S. Fish and Wildlife Service show that more than 60% of Americans participate in some form of wildliferelated recreation. Open spaces provide places where people can escape the confines of urban and suburban living. Most critical habitats are supported in part or in total by the surrounding surface and ground water resources, and they are consequently impacted by development, non-point source pollution and stormwater runoff. Critical Habitats mapped by the NJDEP's Landscape Project within this watershed are shown on Figure WC-6 (see Appendix A). The Critical Habitats within this watershed may include Grassland, Forest, Forested Wetland, Emerging Wetland, Beach, Bald Eagle Foraging, Urban Peregrine Falcon Nesting, and Wood Turtle habitats that should, to the extent practical, be conserved and protected from the adverse impacts caused by uncontrolled development and stormwater runoff. GLOUCESTER COUNTY 4-39 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 5. Build-Out Analysis and Pollutant Loading Projections Build-out analyses and pollutant loading projections have been prepared for each municipality, HUC14 and watershed within Gloucester County, generally in accordance with the NJDEP's methodology described by their guidance and regulations. The buildout analyses and pollutant loading projections are tools to assess the potential impacts from development and stormwater runoff within each of the County's municipalities and watersheds. Some municipalities in Gloucester County are essentially fully developed ("built-out"); little new development can or will occur in these municipalities. However, the potential for significant redevelopment exists in these highly developed municipalities, and the existing development in built-out municipalities contributes pollutants to the watershed. Thus, all of the municipalities in the County, regardless of their remaining developable land areas were evaluated in the County's build-out analyses and pollutant loading projections. Furthermore, in order to add more meaning to the pollutant loading projections, the County has compared present land use and future (build-out) land use by projecting the pollutant loadings under both conditions. The County utilized powerful GIS data management and mapping software to perform these analyses for each municipality, HUC14 and watershed. The build-out analyses and pollutant loading projections allow municipalities, the County and others to quantifiably project the impacts from development on surface waters. Using this tool, municipalities and the County are in a better position to develop strategies to minimize, manage and/or mitigate these impacts through improved stormwater management and construction practices and potentially through modifications to the land use and zoning, before build-out occurs. Build-out analyses and pollutant loading projections are a tool and an initial step for assessing and quantifying adverse impacts from development and stormwater runoff. There are, however, a number of reservations associated with the NJDEP's Build-out methodology, and with build-out and pollutant loading analyses in general. 1. The methodology over-simplifies the complex hydrologic and pollutant transport mechanisms associated with these processes and development. 2. The methodology does not account for the transient nature of development within a given municipality and watershed. It ignores the differences in time over which build-out will occur. For example, one municipality or portion of a watershed GLOUCESTER COUNTY 5-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP might take 10 years to essentially build-out, while another might take 100 years or more. 3. The impervious surface coverage analyses presume that all development within a zone occur at the maximum impervious coverage permitted within the zone. Although it would be reasonable to assume an average impervious coverage, the maximum permitted impervious coverage is the extreme. Furthermore, many municipal land use zones do not specify a maximum impervious coverage and an assumption must be used that may not be optimal (similar zones in other municipalities within the County were used to estimate impervious coverage). 4. The NJDEP presented very little information about the origin and conditions that apply to their land cover pollutant loading coefficients for total phosphorus, total nitrogen and total suspended solids. For example, what are the climatic, soils, hydrologic, geologic, topographic, and vegetative conditions that these coefficients represent, and even more importantly, what stormwater runoff controls were employed that generated these coefficients? Without this information, it is not possible to fully understand the implications of pollutant loadings using these coefficients. The methodology is highly sensitive to these coefficients. 5. Because the NJDEP's methodology projects pollutant loadings for only three parameters, total phosphorus, total nitrogen and total suspended solids, the pollutant loading projections are biased against agricultural land uses. For example, changes in land use from agriculture to low density rural development occurs throughout much of Gloucester County. The NJDEP's pollutant loading coefficients for agriculture are two to three times greater than those for low density residential development. The resulting annual pollutant loadings will then be two to three times lower for land transitioning from agriculture to residential development. This might be misconstrued to imply that the loss of agricultural lands to residential development is somehow desirable. Furthermore, because of the significant amount of agricultural land in some municipalities and watersheds in Gloucester County, the method makes residentially and commercially developed municipalities and watersheds appear less prone to the impacts of nonpoint source pollution, which is not the case. In Gloucester County and other similar areas in New Jersey, agriculture is recognized as being fundamentally important and vital to society, and as such the County does not advocate transitioning from agricultural land uses to residential or other more intense forms of development. 6. The NJDEP's land cover coefficients do not appear to consider or incorporate the new stormwater management techniques now required by the new New Jersey stormwater regulations and the new LID BMP strategies. Furthermore, most GLOUCESTER COUNTY 5-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP municipalities have required some form of stormwater runoff control in new development for 20 years or more. The NJDEP land cover coefficients may, therefore, be very conservative with respect to present development conditions and greatly overestimate the adverse impacts at build-out. 7. In addition to nitrogen, phosphorous and suspended solids there are a number of other pollutants associated with non-point source pollution and stormwater runoff from development. These include among other parameters, petroleum hydrocarbons, metals and pathogenic organisms which are not currently accounted for by the NJDEP's methodology. 8. Malfunctioning and/or inadequate onsite wastewater disposal systems are believed to be a major source of non-point pollution. The NJDEP's method does not account for pollution resulting from onsite systems. Despite these reservations, the build-out analyses and pollutant loading projections are valuable tools for assessing the potential impacts from development and stormwater runoff. The build out analyses and pollutant loading projections in Gloucester County have been developed with the flexibility to easily adjust the pollutant loading coefficients, zoning and other elements of the analyses and projections. The County utilized powerful GIS data management and mapping software to perform these analyses and create this flexibility for each municipality, HUC14 and Watershed. In the future, municipalities and the County may choose to make adjustments that will better project the impacts of stormwater runoff and development. The following GIS-based method was used for the build-out analyses and pollutant loading projections and to prepare the figures presented in this report. 1. Using GIS digital coverages from the NJDEP and DVRPC (existing land use), the eight Watersheds, 54 HUC14 areas and the 24 municipalities within the County were identified, their boundaries delineated and the results saved as a GIS feature layers. ESRI's ArcGIS mapping software was then used to provide the land areas of existing land uses within each of the HUC14s, watersheds and municipalities. 2. Using the Gloucester County Planning Department's GIS data, municipal zoning areas were integrated with the HUC14 drainage areas to establish the zoning within each municipality and HUC14 drainage area. Municipal zoning is highly variable throughout the County. A "crosswalk" was used to associate all municipal zones with the zones provided by the NJDEP for pollutant loading projections. 3. Existing (present) impervious land coverage was determined for each HUC14 and municipality using aerial mapping techniques. 4. Constrained areas were determined from the NJDEP's and the County's GIS coverages, including surficial water bodies, wetland areas, Category One resource GLOUCESTER COUNTY 5-3 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP protection areas and their associated 300 foot buffers, designated open space and protected park areas. These were saved as GIS feature layers and integrated with the existing land use, HUC14 and municipal zoning feature layers. The build-out amount of impervious land coverage within each HUC14 and municipality was then calculated from the zoning layer. Build-out land areas available for new development and redevelopment were calculated by subtracting the constrained areas from the developable areas based on zoning for each HUC14, Watershed and municipality. In essence, the land available for new development is agricultural, forest and/or barren lands and the land available for redevelopment consists of the existing residential, commercial and industrially zoned areas. 5. The build-out (future) impervious surface coverage was calculated by multiplying build-out land areas available for new development and redevelopment by the maximum impervious surface coverage, using (whenever available) the maximum impervious surface coverage percentages specified within each municipal zoning ordinance for that area. 6. Pollutant loading projections were calculated for each municipality and HUC14, using the pollutant loading coefficients provided by the NJDEP Stormwater BMP Manual and shown in Table 9. Pollutant loading projections were made for all 24 municipalities, 54 HUC14s and the eight Watersheds for both the existing land use (present) and build-out (future) conditions. Table 9. Pollutant Loads For Various Land Cover Types Land Cover Total Phosphorus Load (lbs/acre/year) Total Nitrogen Load (lbs/acre/year) Total Suspended Solids Load (lbs/acre/yr) High, Medium Density Residential 1.4 15 140 Low Density, Rural Residential 0.6 5 100 Commercial 2.1 22 200 Industrial 1.5 16 200 Urban, Mixed Urban, Other Urban 1.0 10 120 Agricultural 1.3 10 300 Forest, Water, Wetlands 0.1 3 40 Barrenland/Transitional Area 0.5 5 60 Source: NJDEP Stormwater BMP Manual 2004. GLOUCESTER COUNTY 5-4 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP DEPTFORD TOWNSHIP Build-Out, Impervious Cover and Pollutant Loading Projections The results of the Deptford Township Build-out analysis, including the existing and build-out (future) conditions, are presented in Table 10. This table provides the total area, constrained area, and developable area in acres for each HUC14 within Deptford Township. Table 10 also provides the impervious areas in acres and percent for both existing and build-out conditions, in order to allow comparison of the results for these conditions. In general, impervious percentages greater than about 10 to 15 percent may indicate potential watershed impairment from stormwater and development. The total pollutant loadings for phosphorous, nitrogen and total suspended solids are projected in pounds per year for both the existing and build-out conditions, in order to allow comparison of the pollutant loadings. Included in this plan and in the New Jersey Stormwater Management Regulations and guidance are strategies to minimize, manage and/or mitigate build-out impacts, through improved stormwater management and construction practices. In addition, modifications to current land use and zoning will change the build-out impacts and the County's GIS can be used to evaluate the results of such changes. GLOUCESTER COUNTY 5-5 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Watershed Big Timber Creek Watershed Mantua Creek Watershed Woodbury Creek Watershed Table 10. Deptford Township Pollutant Loading Projections HUC14 Sub-Watershed No. Name 02040202120040 02040202120050 Big Timber Creek SB (including Bull Run to Lakeland Road Big Timber Creek SB (below Bull Run) 02040202120060 Almonessen Creek 02040202120080 Big Timber Creek (below NB/SB confluence) Sub-Total 02040202130020 Mantua Creek (road to Sewell to Rt 47) 02040202130040 Mantua Creek (Edwards Run to road to Sewell) 02040202130060 Mantua Creek (below Edwards Run) Sub-Total 02040202120100 02040202120110 Woodbury Creek (above Rt 45) Woodbury Creek (below Rt 45)/Lower Delaware River to Big Timber Creek Sub-Total Total Total Area (Acres) Constrained Developable 302.32 688.15 2,433.16 2,206.28 5,629.91 120.24 3,403.39 1.15 3,524.78 2,102.21 37.12 2,139.33 11,294.02 31.06 164.83 351.71 867.81 1,415.41 23.94 436.74 0.00 460.68 446.96 3.84 450.80 2,326.89 271.24 523.32 2,081.46 1,338.45 4,214.47 96.30 2,966.64 1.15 3,064.09 1,655.28 33.28 1,688.56 8,967.12 Impervious Area Acres Existing Build-Out 42.19 96.61 Percent Existing Build-Out 13.96% 31.96% 98.97 301.32 14.38% 43.79% 488.70 967.01 20.08% 39.74% 347.34 683.34 15.74% 30.97% 977.20 2,048.28 17.36% 36.38% 3.85 45.53 3.20% 37.87% 447.80 1,374.58 13.16% 40.39% 1.04 0.92 90.43% 80.00% 452.69 1,421.03 12.84% 40.32% 346.82 594.01 16.50% 28.26% 10.49 13.36 28.26% 35.99% 357.31 607.37 16.70% 28.39% 1,787.20 4,076.68 15.82% 36.10% Total Pollutant Load (Lbs/Year) Phosphorus Existing Build-Out 163 403 Nitrogen Existing Build-Out 1,639 4,298 Total Suspended Solids Existing Build-Out 28,556 39,941 321 760 3,435 7,898 46,919 78,787 1,769 2,949 18,332 30,311 236,152 312,329 1,109 2,016 11,063 21,308 163,221 205,954 3,362 6,127 34,468 63,815 474,848 637,012 94 77 790 720 20,467 10,583 2,187 3,690 20,952 37,701 362,776 406,912 2 2 22 25 211 230 2,283 3,770 21,764 38,446 383,454 417,725 1,036 2,122 10,565 22,097 155,162 226,120 27 49 253 519 3,668 4,874 1,063 2,171 10,818 22,616 158,830 230,994 6,707 12,067 67,051 124,876 1,017,132 1,285,731 GLOUCESTER COUNTY 5-6 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP BIG TIMBER CREEK WATERSHED Build-out, Impervious Cover and Pollutant Loading Projections The Big Timber Creek watershed is located in the northwestern portion of Gloucester County and includes municipalities in Gloucester and Camden Counties. Gloucester County occupies less than 50 percent of the watershed. These build-out projections include only those portions of Gloucester County's municipalities in the watershed (portions of Washington Township, Deptford Township, Westville Borough, West Deptford Township and Woodbury City). Figure BT-7 (see Appendix A) shows the existing land use, based on DVRPC 2000 land use data. Figure BT-8 (see Appendix A) shows the constrained areas in the watershed. The Gloucester County portion of the watershed is largely developed; only about 25 percent remains as developable lands (agriculture, woodlands, vacant, etc.). The results of the Big Timber Creek Watershed build-out analysis, including both existing and buildout (future) conditions, are presented in Table BT-4. This table provides the total area, constrained area, and developable area in acres for each HUC14 within the watershed and County. GLOUCESTER COUNTY 5-7 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Municipality Deptford Twp Washington Twp West Deptford Twp Westville Borough Woodbury City Table BT-4. Big Timber Creek Watershed Pollutant Loading Projections HUC14 Sub-Watershed No. Name 02040202120040 02040202120050 02040202120060 02040202120080 02040202120030 02040202120040 02040202120080 Big Timber Creek SB (including Bull Run to Lakeland Rd) Big Timber Creek SB (below Bull Run) Almonesson Creek Big Timber Creek (below NB/SB confluence) Sub-Total Big Timber Creek SB (above Lakeland Rd) Big Timber Creek SB (including Bull Run to Lakeland Rd) Sub-Total Big Timber Creek (below NB/SB confluence) Total Area (Acres) Constrained Developable 302.32 688.15 2,433.16 2,206.28 5,629.91 4,373.35 1,739.64 6,112.99 392.66 31.06 164.83 351.71 867.81 1,415.41 655.87 475.00 1,130.87 102.99 271.24 523.32 2,081.46 1,338.45 4,214.47 3,717.47 1,264.62 4,982.09 289.66 Impervious Area Acres Existing 42.19 Build-Out 96.61 98.97 301.32 488.70 967.01 347.34 683.34 977.20 2,048.28 990.62 979.42 286.70 358.04 1,277.32 1,337.46 61.16 190.95 Percent Existing 13.96% Build-Out 31.96% 14.49% 44.12% 20.10% 39.76% 15.93% 32.03% 17.36% 36.38% 22.73% 22.49% 16.70% 20.90% 20.90% 21.88% 15.58% 48.63% Phosphorus Existing 163 Build-Out 403 321 760 1,769 2,949 1,109 2,016 3,362 6,127 3,049 5,362 903 1,569 3,952 6,931 289 449 Total Pollutant Load (Lbs/Year) Nitrogen Existing 1,639 Build-Out 4,298 3,435 7,898 18,332 30,311 11,063 21,308 34,468 63,815 29,469 56,248 8,859 16,175 38,328 72,423 3,079 4,782 Total Suspended Solids Existing 28,556 Build-Out 39,941 46,919 78,787 236,152 312,329 163,221 205,954 474,848 637,012 435,986 547,895 139,571 185,093 575,557 732,988 38,873 55,829 02040202120080 Big Timber Creek (below NB/SB confluence) 774.58 247.40 527.19 191.24 267.83 24.69% 34.58% 479 763 4,686 8,185 62,086 80,696 02040202120080 Big Timber Creek (below NB/SB confluence) Total 14.80 12,924.94 0.53 2,897.20 14.27 10,027.68 9.96 2,516.88 8.29 3,852.81 67.30% 19.47% 56.01% 29.81% 19 8,101.50 21 14,290.85 204 80,765.23 226 149,429.86 2,567 1,153,931.74 2,694 1,509,217.95 GLOUCESTER COUNTY 5-8 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP MANTUA CREEK WATERSHED Build-out, Impervious Cover and Pollutant Loading Projections The Mantua Creek watershed is located in the central western portion of Gloucester County. These build-out projections include Gloucester County municipalities and their relative contribution to the watershed: Mantua Township (31%), Washington Township (20%), Deptford Township (11%), Harrison Township (8%), East Greenwich Township (8%), West Deptford Township (8%), Harrison Township (5%), Pitman Borough (5%), Paulsboro Borough (3%), Wenonah Borough (2%), Greenwich Township (.3%), Monroe Township (.3%), and Woodbury Heights Borough (.2%). Figure MC-7 (see Appendix A) shows the existing land use, based on DVRPC 2000 land use data. Figure MC-8 (see Appendix A) shows the constrained areas in the watershed. The watershed is partially developed and Mantua, Washington and Deptford Townships are expected to develop further in the future. The results of the Mantua Creek Watershed build-out analysis, including both existing and build-out (future) conditions, are presented in Table MC-4. This table provides the total area, constrained area, and developable area in acres for each HUC14 within the watershed and County. Table MC-4 also provides the impervious areas in both acres and percent for existing and build-out conditions, in order to allow comparison of the results. In general, impervious percentages greater than about 10 to 15 percent may indicate potential watershed impairment from stormwater and development. The total pollutant loadings for phosphorous, nitrogen and total suspended solids are projected in pounds per year for both the existing and build-out conditions, in order to allow comparison of the pollutant loadings. GLOUCESTER COUNTY 5-9 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Municipality Deptford Twp East Greenwich Twp Glassboro Boro Harristown Twp Mantua Twp Monroe Twp No. 02040202130020 02040202130040 02040202130060 02040202130040 02040202130050 02040202130060 02040202130010 02040202130020 02040202130030 02040202130030 02040202130050 02040202130020 02040202130030 02040202130040 02040202130050 02040202130010 Table MC-4. Mantua Creek Watershed Pollutant Loading Projections HUC14 Sub-Watershed Area (Acres) Impervious Area Name Mantua Creek (Sewell Road to Rte. 47) Mantua Creek (Edwards Run to Sewell Rd) Mantua Creek (below Edwards Run) Sub-Total Mantua Creek (Edwards Run to Sewell Rd) Edwards Run Mantua Creek (below Edwards Run) Sub-Total Mantua Creek (above Rte. 47) Mantua Creek (Sewell Road to Rte. 47) Chestnut Branch (above Sewell) Sub-Total Chestnut Branch (above Sewell) Edwards Run Sub-Total Mantua Creek (Sewell Road to Rte. 47) Chestnut Branch (above Sewell) Mantua Creek (Edwards Run to Sewell Rd) Edwards Run Sub-Total Mantua Creek (above Rte. 47) Total Constrained Developable 120.24 3,403.39 1.15 3,524.78 184.29 1,236.65 1,090.39 2,511.33 1,191.56 1.39 1,416.80 2,609.75 327.59 1,167.15 1,494.74 782.02 2,340.22 2,626.31 4,094.62 9,843.17 79.74 23.94 436.74 0.00 460.68 62.94 248.54 395.70 707.18 187.75 0.58 137.40 325.73 15.67 125.05 140.72 89.06 496.28 371.56 552.07 1,508.97 14.56 96.30 2,966.64 1.15 3,064.09 121.36 988.10 694.69 1,804.15 1,003.78 0.80 1,279.40 2,283.98 311.92 1,042.10 1,354.02 692.97 1,843.93 2,254.74 3,542.57 8,334.21 65.18 Acres Existing 3.85 447.80 1.04 452.69 5.70 66.67 109.98 182.35 312.49 0.80 351.65 664.94 27.73 70.14 97.87 108.23 209.50 320.60 222.47 860.80 3.03 Build-Out 45.53 1,374.58 0.92 1,421.03 42.47 313.54 293.02 649.03 440.91 0.32 537.32 978.55 228.21 204.25 432.46 331.03 735.60 807.82 1,003.49 2,877.94 16.30 Percent Existing 3.20% 13.16% 90.43% 12.84% 3.09% 5.39% 10.09% 7.26% 26.23% 57.55% 24.82% 25.48% 8.46% 6.01% 6.55% 13.84% 8.95% 12.21% 5.43% 8.75% 3.80% Build-Out 37.87% 40.39% 80.00% 40.32% 23.05% 25.35% 26.87% 25.84% 37.00% 23.02% 37.92% 37.50% 69.66% 17.50% 28.93% 42.33% 31.43% 30.76% 24.51% 29.24% 20.44% Phosphorus Existing 94 2,187 2 2,283 73 846 585 1,505 844 1 1,030 1,874 371 931 1,302 560 1,385 1,543 3,087 6,574 47 Build-Out 77 3,690 2 3,770 170 863 854 1,888 1,489 1 1,541 3,031 637 703 1,340 951 2,065 2,739 2,746 8,500 91 Total Pollutant Load (Lbs/Year) Nitrogen Existing 790 20,952 22 21,764 714 7,374 5,189 13,277 8,073 7 9,909 17,989 3,050 7,779 10,829 5,596 12,894 15,147 26,734 60,371 436 Build-Out 720 37,701 25 38,446 1,820 8,315 8,658 18,793 15,873 12 15,847 31,733 6,659 6,120 12,778 9,644 20,666 28,365 25,186 83,861 978 Total Suspended Solids Existing 20,467 362,776 211 383,454 16,159 180,335 110,335 306,829 124,744 80 151,786 276,611 77,623 203,985 281,608 95,094 253,695 258,007 653,715 1,260,511 9,917 Build-Out 10,583 406,912 230 417,725 16,990 112,451 95,438 224,878 148,059 112 169,667 317,838 61,129 109,085 170,214 103,374 249,585 304,663 389,295 1,046,917 9,126 Pitman Boro Washington Twp Wenonah Boro 02040202130010 02040202130020 02040202130030 02040202130010 02040202130020 02040202130040 02040202130040 Mantua Creek (above Rte. 47) Mantua Creek (Sewell Road to Rte. 47) Chestnut Branch (above Sewell) Sub-Total Mantua Creek (above Rte. 47) Mantua Creek (Sewell Road to Rte. 47) Mantua Creek (Edwards Run to Sewell Rd) Sub-Total Mantua Creek (Edwards Run to Sewell Rd) 90.34 421.05 929.74 1,441.13 2,511.58 3,826.24 49.73 6,387.55 645.49 1.00 22.35 104.53 127.88 327.95 827.69 0.95 1,156.59 111.99 89.33 398.72 825.19 1,313.24 2,183.64 2,998.55 48.78 5,230.97 533.49 24.65 104.27 231.84 360.76 487.97 666.63 7.12 1,161.72 112.02 28.01 168.14 313.80 509.95 599.03 787.35 22.52 1,408.90 203.16 27.29% 24.76% 24.94% 25.03% 19.43% 17.42% 14.32% 18.19% 17.35% 31.01% 39.93% 33.75% 35.39% 23.85% 20.58% 45.28% 22.06% 31.47% 57 336 583 976 1,712 2,320 79 4,111 306 125 593 1,136 1,854 2,234 3,870 93 6,196 645 503 3,295 5,405 9,204 15,563 21,998 812 38,373 2,861 1,340 6,313 12,028 19,681 22,293 39,760 977 63,030 6,927 8,921 45,763 88,852 143,536 282,831 366,607 8,596 658,034 49,946 12,506 62,592 120,385 195,483 266,956 428,725 9,757 705,437 68,080 West Deptford Twp Greenwich Township 02040202130040 02040202130060 02040202130060 Mantua Creek (Edwards Run to Sewell Rd) Mantua Creek (below Edwards Run) Sub-Total Mantua Creek (below Edwards Run) 633.56 1,779.62 2,413.18 90.35 122.35 712.31 834.66 0.98 511.20 1,067.29 1,578.49 89.38 90.52 161.88 252.40 39.93 198.61 549.62 748.23 65.28 14.29% 9.10% 10.46% 44.19% 31.35% 30.88% 31.01% 72.25% 445 1,016 1,460 120 559 1,359 1,918 133 4,192 9,718 13,910 1,268 5,696 14,164 19,860 1,416 78,150 175,124 253,274 15,871 63,893 163,216 227,109 17,046 Paulsboro 02040202130060 Mantua Creek (below Edwards Run) 980.53 420.70 559.83 157.02 320.90 16.01% 32.73% 464 843 4,458 8,990 64,594 91,107 Woodbury Heights Boro 02040202130040 Mantua Creek (Edwards Run to Sewell Rd) Total GLOUCESTER COUNTY 77.24 32,098.98 6.26 5,816.90 70.98 26,282.01 12.70 4,358.23 5-10 29.67 9,661.40 16.44% 13.58% 38.41% 30.10% 42 21,062 101 30,310 421 195,160 1,081 307,574 6,454 3,710,638 10,902 3,501,861 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP WOODBURY CREEK WATERSHED Build-out, Impervious Cover and Pollutant Loading Projections The Woodbury Creek Watershed is located in the northwestern portion of Gloucester County. These build-out projections include Gloucester County municipalities and their relative contribution (area) to the watershed: West Deptford Township (61%), Deptford Township, (17%), Woodbury City (11%), Woodbury Heights Borough (6%) and National Park Borough (5%). Figure WC-7 (see Appendix A) shows the existing land use, based on DVRPC 2000 land use data. Figure WC-8 (see Appendix A) shows the constrained areas in the watershed. The Woodbury Creek watershed is substantially developed and close to reaching its build-out potential. Approximately 10 percent of the land is undeveloped (agriculture, wooded land, vacant). The results of the Woodbury Creek Watershed build-out analysis, including both existing and build-out (future) conditions, are presented in Table WC-4. This table provides the total area, constrained area, and developable area in acres for each HUC14 within the watershed and County. Table WC-4 also provides the impervious areas in both acres and percent for existing and build-out conditions, in order to allow comparison of the results. In general, impervious percentages greater than about 10 to 15 percent may indicate potential watershed impairment from stormwater and development. The total pollutant loadings for phosphorous, nitrogen and total suspended solids are projected in pounds per year for both the existing and build-out conditions, in order to allow comparison of the pollutant loadings. GLOUCESTER COUNTY 5-11 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN Table WC-4. Woodbury Creek Watershed Pollutant Loading Projections DEPTFORD TOWNSHIP Municipality Deptford Twp National Park Boro West Deptford Twp Woodbury City Woodbury Heights Boro HUC14 Sub-Watershed No. Name 02040202120100 02040202120110 02040202120110 02040202120120 02040202120110 02040202120120 02040202120100 02040202120110 02040202120100 02040202120110 Woodbury Creek (above Rte. 45) Woodbury Creek (below Rte. 45) / Lower Delaware River to Big Timber Creek Sub-Total Woodbury Creek (below Rte. 45) / Lower Delaware River to Big Timber Creek Main Ditch / Little Mantua Creek Sub-Total Woodbury Creek (below Rte. 45) / Lower Delaware River to Big Timber Creek Main Ditch / Little Mantua Creek Sub-Total Woodbury Creek (above Rte. 45) Woodbury Creek (below Rte. 45) / Lower Delaware River to Big Timber Creek Sub-Total Woodbury Creek (above Rte. 45) Woodbury Creek (below Rte. 45) / Lower Delaware River to Big Timber Creek Sub-Total Total Total Area (Acres) Constrained Developable 2,102.21 37.12 2,139.33 773.20 153.91 927.11 5,023.96 3,445.01 8,468.97 540.60 790.50 1,331.10 467.74 257.80 725.54 13,592.05 446.96 3.84 450.80 460.42 143.99 604.41 1,960.23 1,717.40 3,677.63 89.86 76.87 166.73 63.62 4.08 67.70 4,967.27 1,655.28 33.28 1,688.56 312.78 9.91 322.69 3,063.78 1,727.62 4,791.40 450.74 713.63 1,164.37 404.11 253.71 657.82 8,624.84 Impervious Area Acres Existing 346.82 Build-Out 594.01 10.49 13.36 357.31 607.37 110.90 126.42 0.16 6.19 111.06 132.61 697.85 1,557.11 431.04 1,166.71 1,128.89 2,723.82 117.70 220.90 257.31 392.59 375.01 613.49 91.19 173.05 77.66 108.54 168.85 281.59 2,141.12 4,358.88 Percent Existing 16.50% Build-Out 28.26% 28.26% 35.99% 16.70% 28.39% 14.34% 16.35% 0.10% 4.02% 11.98% 14.30% 13.89% 30.99% 12.51% 33.87% 13.33% 32.16% 21.77% 40.86% 32.55% 49.66% 28.17% 46.09% 19.50% 37.00% 30.12% 42.10% 23.27% 38.81% 15.75% 32.07% Phosphorus Existing 1,036 Build-Out 2,122 27 49 1,063 2,171 184 477 5 15 189 491 2,495 4,299 1,905 2,547 4,400 6,846 394 682 665 1,102 1,058 1,784 297 601 214 392 511 993 7,221 12,285 Total Pollutant Load (Lbs/Year) Nitrogen Existing 10,565 Build-Out 22,097 253 519 10,818 22,616 1,670 5,080 49 155 1,719 5,235 24,356 45,438 18,253 27,102 42,609 72,540 3,848 7,269 6,387 11,712 10,234 18,981 2,982 6,417 2,075 4,175 5,056 10,592 70,437 129,964 Total Suspended Solids Existing 155,162 Build-Out 226,120 3,668 4,874 158,830 230,994 28,164 50,851 585 1,930 28,750 52,780 362,047 477,244 327,021 328,740 689,068 805,984 50,783 69,304 85,594 109,475 136,377 178,779 41,943 62,333 28,572 38,949 70,515 101,282 1,083,539 1,369,820 GLOUCESTER COUNTY 5-12 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 6. Design and Performance Standards Deptford Township must amend its land use ordinances to incorporate the design and performance standards for stormwater management measures as presented in N.J.A.C. 7:8-5, to minimize the adverse impact of stormwater runoff on water quality and water quantity and loss of groundwater recharge in receiving water bodies. This requirement will be met by adopting a Municipal Stormwater Control Ordinance that meets these requirements or by amending an existing stormwater control ordinance to meet these requirements. The design and performance standards in the adopted or amended ordinance must include the language for maintenance of stormwater management measures consistent with the stormwater management rules at N.J.A.C. 7:8-5.8 Maintenance Requirements, and language for safety standards consistent with N.J.A.C. 7:8-6 Safety Standards for Stormwater Management Basins. After adoption or amendment of the ordinance, it must be submitted to the County, along with this MSWMP, for approval. Furthermore, during construction of major development within the Deptford Township, municipal inspectors must observe the construction of stormwater management measures to ensure that they are constructed and function as designed. The New Jersey stormwater design and performance standards represent an initial effort to control non-point sources of pollution and to improve groundwater recharge. The effective control of point sources of pollution took many years. The USEPA and the NJDEP believe that further water quality improvements can now best be achieved by controlling non-point sources of pollution and stormwater runoff. New stormwater management measures and design and performance standards will emerge over the ensuing years. The stormwater rules, NJPDES stormwater permits, and municipal stormwater plans and ordinances will similarly evolve and require amendments. Municipalities will be expected to control stormwater runoff, to improve or maintain surface water quality and groundwater recharge and to continue to utilize appropriate stormwater design and performance standards to achieve this goal. With the increasing emphasis on non-point source pollution and concerns over the adverse impacts of uncontrolled land development, effective alternatives to the centralized stormwater conveyance and treatment strategies have been developed that are the basis for many of the new stormwater management standards in the State. New strategies have been developed to minimize and even prevent adverse stormwater runoff impacts from occurring. GLOUCESTER COUNTY 6-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Such strategies, known collectively as Low Impact Development techniques or LIDs, reduce and/or prevent adverse runoff impacts through sound site planning and both nonstructural and structural techniques that preserve or closely mimic a site's natural or pre-developed hydrologic response to precipitation. These new stormwater management strategies are explained in more detail in Section 8 of this MSWMP. GLOUCESTER COUNTY 6-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 7. Plan Consistency There are no approved Regional Stormwater Management Plans (RSWMPs) in Gloucester County at this time. However, Regional Stormwater Management Planning is being conducted by the County Planning Department, NJ Soil Conservation Districts/Program and Rowan University in portions of a number of the County's watersheds. These include portions of the Maurice River (upper portions, including Scotland Run, Little Ease Run and Still Run), Raccoon Creek (upper portions) and Mantua Creek (Chestnut Branch). The Gloucester County Stormwater Management Program is working closely with these regional efforts. When these or any future RSWMPs are approved by the appropriate regional water quality management planning agency and NJDEP, and adopted as part of the regional water quality management plan, the new New Jersey stormwater management regulations require that municipal stormwater management plans be revised to provide consistency. Presently, TMDLs have been proposed for certain surface water bodies in Gloucester County. Section 4 of this MSWMP addresses impaired surface waters, TMDLs and supporting surface water quality data. When these ongoing TMDL proposals or any future TMDLs proposals are finally approved, the new New Jersey stormwater management regulations require that municipal stormwater management plans be revised to provide consistency. The Deptford Township MSWMP is consistent with the Residential Site Improvement Standards (RSIS) at N.J.A.C. 5:21. Deptford Township will utilize the most current update of the RSIS in the stormwater management review of residential areas. This Municipal Stormwater Management Plan will be updated to be consistent with any future updates to the RSIS. Furthermore, Deptford Township's stormwater management ordinance(s) will require all new development and redevelopment plans to comply with New Jersey's Soil Erosion and Sediment Control Standards. During construction, municipal inspectors will observe on-site soil erosion and sediment control measures and report any inconsistencies to the Gloucester County Soil Conservation District. GLOUCESTER COUNTY 7-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 8. Stormwater Management Strategies Low Impact Development Techniques The NJDEP's new Stormwater Management Rules include the specific provisions that must be addressed in a municipal stormwater management plan (N.J.A.C. 7:8-4.2(c)). One of these requirements is that the plan include an evaluation of the extent to which the master plan (including the land use element), official map, and development regulations (including zoning ordinances) implement the principles of the Stormwater Management Rules relating to nonstructural stormwater management strategies (N.J.A.C. 7:8-5.3(b)). New stormwater management techniques have been developed that minimize and prevent adverse stormwater effects from land disturbance. These techniques are referred to by the NJDEP as Low Impact Development techniques (LIDs) and include both nonstructural and structural Best Management Practices (BMPs). LID-BMPs first minimize quantitative and qualitative changes to a site's pre-developed hydrology (i.e., employ nonstructural techniques first) and then provide stormwater management through smaller sized structural techniques distributed throughout the site. The link to the NJDEP website to download the BMP Manual is: http://www.njstormwater.org/bmp_manual2.htm Nonstructural LID-BMPs include such practices as minimizing site disturbance, preserving important site features, reducing and disconnecting impervious cover, flattening slopes, utilizing native vegetation, minimizing turf grass lawns and maintaining natural drainage features. It may be possible at some sites to satisfy all stormwater management requirements through nonstructural LID-BMPs. Structural BMPs are considered LIDs if they are located close to the source of runoff. Structural LID-BMPs include various types of basins, filters, devices and permeable surfaces located within residential lots and otherwise throughout residential, commercial, industrial or institutional development. Because LIDs rely on nonstructural or relatively small structural BMPs distributed throughout a land development site, ownership and maintenance may be similarly distributed to an array of property owners. The new Stormwater Management rule requires the use of deed restrictions for LID-BMPs to ensure that property owners fully recognize, understand and support the continuing use of LID-BMPs for stormwater management. The NJDEP believes that effective, state-wide use of such practices can best be achieved through modifications to municipal master plans and land use ordinances to include LID goals and to provide for the use of specific LID-BMPs. The Stormwater Management Rules require municipalities to review their master plans and ordinances in order to incorporate LID techniques to the maximum extent practicable. GLOUCESTER COUNTY 8-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP The NJDEP Stormwater Management Rules (N.J.A.C. 7:8) require, in Section 5.2(a) that Major Development (disturbing one acre or more or increasing impervious surface by 1/4 acre) incorporate nonstructural stormwater management strategies "to the maximum extent practicable." Nonstructural LID-BMPs are to be given preference over structural BMPs. Where it is not possible to fully comply with the Stormwater Management Rules through nonstructural LIDs, structural LID-BMPs are to be used in conjunction with standard structural BMPs to meet the Rules' requirements. N.J.A.C. 7:8-5 further requires that an applicant seeking approval for major development or redevelopment specifically identify which and how these nine nonstructural strategies are incorporated or provide an engineering, environmental, or safety reason for their nonincorporation. The NJ BMP manual contains a LID checklist which planning boards and development applicants can use to ensure LID techniques are being applied. This checklist is available in Appendix D. (a) Nonstructural LID-BMPs The NJDEP's new Stormwater rule's design and performance standards require the maximum possible use of nine nonstructural strategies. 1. Protect areas that provide water quality benefits or areas particularly susceptible to erosion and sediment loss. 2. Minimize impervious surfaces and break up or disconnect the flow of runoff over impervious surfaces. 3. Maximize the protection of natural drainage features and vegetation. 4. Minimize the decrease in the pre-construction time of concentration. 5. Minimize land disturbance including clearing and grading. 6. Minimize soil compaction. 7. Provide low maintenance landscaping that encourages retention and planting of native vegetation and minimizes the use of lawns, fertilizers, and pesticides. 8. Provide vegetated open-channel conveyance systems discharge into and through stable vegetated areas. 9. Provide preventative source controls. The nonstructural LID-BMPs have been grouped by the NJDEP into four general categories: I. Vegetation and Landscaping - reduces runoff volumes and peaks through infiltration, surface storage, and evapotranspiration, provides pervious surface for groundwater recharge and removes pollutants from stormwater. Key techniques include: GLOUCESTER COUNTY 8-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP A. Preservation of Natural Areas - preserve areas with significant hydrologic functions including forested areas, riparian corridors and soils/geology with high recharge potential. B. Native Ground Cover - reduce the use of turf grass and preserve areas that naturally minimize runoff. C. Vegetative Filters and Buffers - provide native ground cover and grass areas to filter stormwater runoff from pervious areas and to provide locations for runoff to infiltrate. II. Minimizing Land Disturbance - reduces runoff volume and pollutant loads and maintains existing recharge rates and other hydrologic functions. Key techniques include: A. Planning and design to fit the development to the terrain, limiting clearing and grading. B. Evaluating site conditions and constraints including soil types, geology, topography, slopes, drainage areas, wetlands, and floodplains to maintain high recharge areas and provide runoff storage areas. C. Utilizing construction techniques that limit disturbance and soil compaction. D. Restricting the future expansion of buildings and other improvements that will adversely affect runoff volumes and rates or recharge rates. III. Impervious Area Management - reduces water quality impacts, runoff volume and peak rates, runoff velocity, erosion and flooding. Key techniques include: A. Streets - use minimum acceptable pavement widths and incorporate pervious vegetated medians and islands with curb cuts for runoff access. B. Sidewalks - use pervious pavement with infiltration storage beneath and disconnect from the street drainage system. C. Parking and Driveways - use pervious pavement wherever practical and reduce parking space requirements by sharing requirements in mixed uses and by reducing parking space lengths by allowing for overhang into pervious areas. D. Pervious Paving Materials - Use pervious materials in parking spaces, driveways, access roadways and sidewalks, including pavers, porous pavement and gravel. E. Unconnected Impervious Areas - Disconnect impervious areas and runoff form the site's drainage system allowing the sheet flow to cross pervious areas through curb cuts or by eliminating curbing and using shoulders and swales. F. Vegetated Roofs - install lightweight vegetative planting beds on new or existing roofs. GLOUCESTER COUNTY 8-3 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP IV. Time of Concentration Modification - minimize reductions to the time of concentration caused by changes in hydrologic characteristics in order to minimize the peak runoff rate. Key techniques include: A. Surface Roughness Changes - increase surface roughness through the use of land cover and decrease the amount of connected smooth surfaces in order to increase runoff travel time throughout the drainage area. B. Slope Reduction - reduce slopes in graded areas and/or provide terraces and reduced slope channels to increase runoff travel length and time. C. Vegetated Conveyance - use vegetated channels and swales to increase roughness and runoff travel time and to provide opportunities for runoff treatment and infiltration. In order to assure to the maximum extent possible the use of Nonstructural LIDs in new major development, the NJDEP prepared a Nonstructural Strategies Evaluation Worksheet, and this worksheet is included in Appendix D. (b) Structural LID-BMPs In addition to these nonstructural LID-BMPs, structural stormwater management measures can be LID-BMPs. These structural BMPs become LID-BMPs by storing, infiltrating, and/or treating runoff close to the source of the stormwater. Unlike standard structural BMPs that are located along a site's drainage system, structural LID-BMPs are normally dispersed throughout a development and more closely mimic the hydrology. LID-BMPs are typically standard structural BMPs, but their location, closer to the runoff source, allows them to be smaller in size. Standard structural BMPs that can be implemented at a LID scale include: drywells, infiltration systems, bioretention basins, and both surface and subsurface detention basins; downsized, to address stormwater close to its source as LIDs. There are a number of structural stormwater BMPs that may be used to address the groundwater recharge and stormwater quality and quantity requirements of the NJDEP Stormwater Management Rules in N.J.A.C. 7:8. The structural BMPs include the following techniques (see also New Jersey Stormwater Best Management Practices Manual, February 2004, which includes the planning, design, construction, and maintenance guidelines for these structural BMPs): 1. Bioretention Systems 2. Constructed Stormwater Wetlands 3. Dry Wells 4. Extended Detention Basins 5. Infiltration Basins 6. Manufactured Treatment Devices 7. Pervious Paving Systems 8. Rooftop Vegetated Cover 9. Sand Filters GLOUCESTER COUNTY 8-4 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP 10. Vegetative Filters 11. Wet Ponds Other BMPs that possess similar levels of effectiveness, efficiency, and endurance may also be utilized, provided that such levels can be demonstrated. Deptford Township will review the Master Plan and local land use ordinances and incorporate structural stormwater management strategies (LID and standard structural stormwater BMPs) to the extent practicable and in accordance with sound planning, science, engineering and construction principles, as they apply to its unique environment. Other Stormwater Management Strategies BIG TIMBER CREEK WATERSHED (a) Gloucester County Stormwater Management Program's Watershed Workshop The Gloucester County Stormwater Management Program held a Big Timber Creek Watershed workshop, inviting representatives from each municipality in the watershed to an evening discussion of stormwater management issues and strategies. The resulting issues and recommended strategies are presented below. Localized Flooding: Westville Borough has experienced an increase in flooding in recent years. The long term loss of natural storage areas (tidal marshes) in the watershed was suggested as one possible cause for this problem. Westville's location in the watershed, along the confluence of Big Timber Creek and the Delaware River, places it in a particularly vulnerable position. Further evaluation of flooding potential in this area of the watershed is warranted, particularly in lieu of potential future sea level increases. Well Head Protection Areas and Aquifer Outcrops: Additional stormwater treatment may be needed for recharge in Well Head Protection Areas and/or aquifer outcrop areas, in order to prevent drinking water and ground water contamination. Further evaluation of stormwater recharge quality and the natural attenuation of contaminants are needed. State and federal assistance may be required for these evaluations. Stormwater BMP Maintenance: BMPs required by the new stormwater regulations require long term maintenance, if they are to remain effective. The NJDEP's stormwater permits require municipalities to ensure and annually certify that this maintenance is being carried out. Municipalities and their planning boards must develop a method of securing the long term maintenance of these facilities and an inspection and/or certification process that will allow them to ensure maintenance and provide the annual certification. GLOUCESTER COUNTY 8-5 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP (b) Regional Stormwater Management Planning There is no Regional Stormwater Management Plan (RSWMP) for the Big Timber Creek Watershed. However, a Regional Stormwater Management Plan was prepared for the upper portion (above Grove Street in Haddonfield) of the adjacent Cooper River Watershed. The Cooper River Watershed RSWMP was developed by the Camden County Soil Conservation District (CCSCD) in cooperation with the New Jersey Department of Agriculture, State Soil Conservation Committee (SSCC) and the Burlington, Cape-Atlantic and Gloucester Soil Conservation Districts and is dated May 2004. Conditions (size, density, soils, geology, topography and land use) in the Big Timber Creek Watershed and the Cooper River Watershed are sufficiently similar to permit the extrapolation of applicable stormwater management recommendations from the Cooper River RSWMP to the Big Timber Creek watershed. The South and North Branch of Big Timber Creek join together at Clements Bridge Road, in Deptford Township, about four miles from the main stem's confluence with the Delaware River. The main stem and the South Branch form the northern border of Gloucester County. Thus, all of the North Branch and about half of the South Branch of the Big Timber Creek watershed are in Camden County. The main stem and the South Branch are tidally influenced from the Delaware River up to Blackwood Lake in Washington Township. A significant percentage of the Big Timber Creek watershed has been developed and is defined as urban land. Stormwater management practices throughout the watershed have evolved, from the simple collection and discharge of direct runoff to the extended detention and water quality treatment practices required by the new state stormwater design and performance standards. Appropriate stormwater management strategies for the Big Timber Creek watershed are presented below. Stormwater Basin and Existing Development Retrofit - Older under-maintained stormwater basins may not adequately provide mitigation for the most frequently occurring rain storms nor provide stormwater quality treatment. To improve the water quality and mitigate peak flows during these high frequency storms, existing stormwater basins can be retrofitted. Additionally, existing development retrofit strategies can be implemented during stormwater infrastructure improvements or as a separate retrofit project, including such techniques as roof water infiltration or reuse, stormwater inlet modifications, roadside rain gardens or infiltration structures and bio-retention facilities. Stream and Streambank Stabilization - Erosion is significantly accelerated by human activities and development in the watershed. Streambank erosion introduces excess sediment loads to the stream and in turn chokes lakes and ponds with sediment. Watershed-wide stream and stream bank restoration and stabilization priorities and guidelines should be adopted by all involved municipalities and agencies working in the watershed in order to improve water quality, upgrade instream and riparian habitat and reduce sedimentation in receiving waterbodies. GLOUCESTER COUNTY 8-6 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Regional Storage - Runoff from older developed areas in the watershed may not be adequately managed on site. Peak flows and the volumes of runoff generated from even a small rainfall event may be adequate to cause immediate responses in the streams and contribute significantly to the stream bank erosion and sedimentation. Stream response should be evaluated and regional storage options thoroughly investigated prior to initiation of stream restoration and lake dredging. Regional storage includes strategies to store excess runoff in either newly constructed wetlands or ponds or the rehabilitation of existing, but inadequate or failed facilities. Though costly, regional storage may provide the best opportunity to avoid continuing degradation and maintenance costs Redevelopment: - Although much of the watershed is developed, during redevelopment, stormwater runoff from previously unmanaged or under-managed sites will be mitigated. All municipalities must adopt the required stormwater control ordinances for new development and redevelopment and requiring control of runoff from nearly 90 percent of the average annual rainfall on site, groundwater recharge and an 80 percent removal of total suspended solids. Low Impact Development Techniques - Low Impact Development (LID) techniques provide a variety of stormwater control measures to maintain or restore the pre-developed hydrologic characteristics of a site. (See LID recommendations above) Stormwater Outfall Restoration -Failing outfalls are a concern for public safety and they may contribute excess sediment to the receiving waterway. Degraded outfalls and resulting stream bank erosion will be identified during the Gloucester County Stormwater Management Program's outfall mapping and stream bank condition assessment efforts. Repairs can be prioritized throughout the watershed. Geese Management: Increasing geese populations have become a problem throughout both the suburban and rural portions of southern New Jersey. Stormwater detention ponds, grass and lawn areas and farm fields provide habitat for geese. Although the populations sometimes add to the areas aesthetics, there are adverse impacts to water quality and the land that result, especially with over population. The new New Jersey Stormwater regulations require municipalities to pass ordinances prohibiting the feeding of waterfowl. In addition, municipalities should encourage land cover types and practices in new development that discourage geese from resting, nesting and feeding in areas that would otherwise provide attractive habitat, such as stormwater management facilities. Lake and Pond Management and Maintenance - Ponds and lakes in the Big Timber Creek Watershed provide significant aesthetic benefit, and these waterbodies reduce stream slopes, provide storage and attenuate peak runoff rates and serve as sediment basins, trapping sediment carried by the streams. They also provide a diverse aquatic habitat for certain species not found in streams. Programmatic GLOUCESTER COUNTY 8-7 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP management and maintenance of public and privately held lakes and ponds, including dam maintenance, dredging and vegetation management, is needed to sustain these benefits. (c) Water Quality-TMDL Stormwater Management Strategies The NJDEP has proposed four (4) sets of TMDLs that address impaired water bodies in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . Three of the four sets of TMDLs were proposed by the NJDEP in April 2003 and were based on the 2002 Integrated Report. These TMDLs were approved in September 2003, but have not yet been adopted. One of the four sets of TMDLs was proposed by the NJDEP in July 2005, and is not yet considered established. The TMDL remediation plans and stormwater strategies are summarized below. TMDLs were proposed for fecal coliform for the South Branch Big Timber Creek at Glenloch and for the South Branch Big Timber Creek at Blackwood Terrace. Waste load allocation reductions have been proposed for these affected waterways. The TMDL proposals describe possible sources of fecal coliform, as well as the method of developing the TMDL and remediation plan. Fecal Coliform: Fecal Coliform contamination may have either point or non-point sources or both. Point sources generally involve sewage discharges. Because sewage treatment plants have permits that require disinfection to levels well below water quality standards, the proposed TMDLs address non-point sources, involving stormwater runoff. These non-point stormwater sources include runoff from various land uses that transport fecal coliform from geese and other wildfowl, farms, and domestic pets to the receiving water. Non-point sources also include "illicit" sources, such as failing onsite disposal systems and the illegal connections of sanitary drains from buildings to storm sewers. Phase II NJPDES Permits and the Municipal Stormwater Regulation Program: Fecal Coliform loadings may be reduced by the new requirements to enforce a pet waste ordinance and an ordinance prohibiting the feeding of wildfowl on public property. The NJPDES permit requirements also require the annual inspection and cleaning (if necessary) of catch basins, the performance of good housekeeping practices at maintenance yards and public education and employee training aimed at reducing non-point sources of pollution, including fecal coliform. Additional reductions in fecal coliform levels may result from the elimination of illicit connections and failing on-site sewage disposal systems. Fecal coliform contributions from agricultural activities can be controlled by the implementation of agricultural conservation management plans and best management practices. GLOUCESTER COUNTY 8-8 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Geese Management: Grenlock Lake attracts large populations of Canadian Geese. Remediation methods suggested include community based goose management programs. TMDLs were proposed for phosphorous for the South Branch of Big Timber Creek at Blackwood Terrace and for Blackwood Lake. Waste load allocation reductions have been proposed. The TMDL proposals describe possible sources of phosphorous, as well as the method of developing the TMDL and remediation plan. (See Section 8 Water Quality-TMDL Stormwater Management Strategies) Phosphorous: Phosphorous sources include domestic and industrial wastewater treatment plants that discharge to surface waters as well as stormwater discharges subject to regulation under the New Jersey Pollutant Discharge Elimination System (NJPDES) municipal stormwater permitting program. Non-point sources include stormwater runoff from land surfaces, malfunctioning sewage conveyance systems, failing or inappropriately designed septic systems and direct contributions from wildlife, livestock and pets. Phase II NJPDES Permits and the Municipal Stormwater Regulation Program: Phosphorous loadings may be reduced through the activities required by the Phase II permits. Low Phosphorous Fertilizer Ordinance: As an additional measure to their NJPDES stormwater permits, Deptford Township and Washington Township are required to adopt an ordinance that prohibits the outdoor application of fertilizer, other than low phosphorous fertilizer. The ordinance must be consistent with a model ordinance provided by the NJDEP. (d) Lower Big Timber Creek Regional Stormwater Management Strategies: Big Timber Creek and the South Branch of Big Timber Creek are tidally influenced up to Blackwood Lake in Washington Township. These lower tidally influenced portions of the watershed present a different hydrologic regime. The stormwater management strategies developed for the upper portions of the watershed, may not in some cases, be relevant or appropriate for the lower tidal portions of the watershed. Water quality and stormwater management in the lower portions of the Big Timber Creek watershed are significantly influenced by conditions in the Delaware River. The complex nature of the interactions between the Delaware River, the Delaware Estuary and the tidally influenced lower portions of the Big Timber Creek Watershed are beyond the scope of this plan and this stormwater management strategy discussion. MANTUA CREEK WATERSHED (a) Gloucester County Stormwater Management Program's Watershed Workshop GLOUCESTER COUNTY 8-9 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP The Gloucester County Stormwater Management Program held a Mantua Creek Watershed workshop, inviting representatives from each municipality in the watershed to an evening discussion of stormwater management issues and strategies. The resulting issues and recommended strategies are presented below. Localized Flooding and Stormwater Infrastructure Maintenance: Localized flooding occurs at a number of locations in the watershed, including Delsea Drive in Glassboro, north of Pitman-Downer Drive (Mars Court) in Washington Township, the Westville Oaks area between Peach, Gilbert and Florence roads in Deptford, and Chestnut Branch in Glassboro near Rowan University. Furthermore, there are floodgates on Mantua Creek at the Delaware River behind the Hercules industrial facility that are critical elements in the watershed's flood protection and security. Localized flooding occurs about one to four times per year and sometimes reaches a few feet in depth. A number of the flooding problems are thought to be the result of siltation and obstructions in culverts and stream channels. Particularly at locations where state, county and municipal roadways intersect, runoff from state and county roadways sometimes becomes a burden to local roads and stormwater systems, and ownership and responsibility for its management is sometimes unclear and neglected. The new New Jersey stormwater regulations and the design and performance standards, address this issue for all new major development (defined as projects that disturb one or more acres of land or increase the amount of impervious surface by one-quarter acre or more), including new roadway construction and reconstruction. State, County and local roadway agencies must comply with these new regulations and control their stormwater runoff accordingly. Unfortunately, the new regulations can not resolve already existing, localized roadway flooding. Most municipalities and the County Highway Division do not have plans or maps of their stormwater system, nor is there a method in place for State, County or local agencies to share stormwater system information, even though these systems must frequently work together. Furthermore, there are typically few if any systems for inspecting and recording the stormwater system's condition or maintenance activities. The Gloucester County Stormwater Program includes an extensive outfall mapping component for Gloucester County's municipalities and the County Highway Division. The program is using GPS dataloggers to map and record data in a digital format for stormwater outfalls throughout the County. The County program will produce outfall maps for each municipality and the County Highway Division and the County program is storing the digital data in a GIS for easy sharing, updates and retrieval. The outfall maps are a first step in defining the County's stormwater systems. In order to assist municipalities with stormwater system management, the County will be purchasing dataloggers for use by municipalities in mapping the other components GLOUCESTER COUNTY 8-10 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP of their stormwater systems (inlets, pipes, ditches, culverts, basins etc.). An understanding of the stormwater systems and drainage may help resolve existing localized roadway flooding, and it will assist the municipalities and County in providing the maintenance assurances required by their new stormwater NJPDES permits. A better understanding of the stormwater system and their conditions will also reduce the likelihood of sudden stormwater infrastructure failures. (b) Regional Stormwater Management Strategies There is no Regional Stormwater Management Plan (RSWMP) for the Mantua Creek Watershed. The Gloucester Soil Conservation District (GSCD) with the New Jersey Department of Agriculture, State Soil Conservation Committee (SSCC) and the Burlington, Camden and Cape-Atlantic Soil Conservation Districts prepared an Upper Maurice River Regional Stormwater Management Plan dated October 2004 and a Draft Characterization and Assessment (C&A) for the Raccoon Creek Watershed. The Maurice River and Raccoon Creek watersheds are adjacent to the Mantua Creek Watershed. Conditions in the Mantua Creek Watershed, particularly in the less developed upper portions, are sufficiently similar to those in the Raccoon Creek and Maurice River Watersheds to permit some extrapolation of applicable stormwater management strategies. The regional stormwater management strategies proposed for the Mantua Creek Watershed are described below: Stormwater Recharge: Changes in land use from rural agricultural to emerging suburban/urban development invariably alter the natural runoff and infiltration capabilities of the soil. As the landscape is altered in the construction process, the natural soil horizons are disturbed, forested areas are removed and the capacity of the soils in the post-development condition to mimic pre-development water retention and infiltration is severely impaired and reduced. This reduction results in increased overland flow, a decrease in retained moisture, and ultimately reduction in stream base flow. Stormwater recharge through infiltration or in combination with detention should be used as much as possible for stormwater management. Low Impact Development Techniques - Low Impact Development (LID) techniques provide a variety of stormwater control measures to maintain or restore the pre-developed hydrologic characteristics of a site. (See LID recommendations above) Adoption of DelMarVa Peak Rate Factor: As part of more accurately modeling existing conditions in the Mantua Creek Watershed, utilizing regionalized factors in the calculation of stormwater runoff is critical. The DelMarVa peak rate factor (PRF) replaces the national average PRF in the dimensionless unit hydrograph used by the NRCS stormwater runoff prediction methodologies. The DelMarVa hydrograph has been formally recommended for use in the coastal plain of New Jersey and should be required for all hydrologic analyses in this watershed. GLOUCESTER COUNTY 8-11 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Deicing Sand: Sand used during snow storms makes its way to stormwater inlets, pipes and outfalls, where it causes both hydraulic and water quality problems. In order to reduce the maintenance costs from cleaning sand from stormwater facilities and to reduce the suspended solids loading to streams, municipalities can minimize or eliminate the use of sand for snow storms. The Gloucester County Stormwater Program includes an extensive anti-icing and deicing component for Gloucester County's municipalities and the County Highway Division. The program includes the provision of salt storage sheds and liquid antiicing and deicing agents in bulk storage at five locations throughout the County, as well as liquid application equipment for county and municipal salt trucks. An antiicing and deicing education program is part of this effort. The County's program will help municipalities and the County Highway Division minimize or eliminate the use of sand for snow storms and also reduce the amount of salt used for deicing. Geese Management: Increasing goose populations have become a problem throughout both the suburban and rural portions of southern New Jersey. Stormwater detention ponds, grass and lawn areas and farm fields provide habitat for geese. Although the populations sometimes add to the areas aesthetics, there are adverse impacts to water quality and the land that result, especially with over population. The new New Jersey Stormwater regulations require municipalities to pass ordinances prohibiting the feeding of waterfowl. In addition, municipalities should encourage land cover types and practices in new development that discourage geese from resting, nesting and feeding in areas that would otherwise provide attractive habitat, such as stormwater management facilities. Changes to state and federal laws regarding hunting were discussed and recommended at the workshop. Stormwater Basin and Existing Development Retrofit - Older under-maintained stormwater basins may not adequately provide mitigation for the most frequently occurring rain storms nor provide stormwater quality treatment. To improve the water quality and mitigate peak flows during these high frequency storms, existing stormwater basins can be retrofitted. Additionally, existing development retrofit strategies can be implemented during stormwater infrastructure improvements or as a separate retrofit project, including such techniques as roof water infiltration or reuse, stormwater inlet modifications, roadside rain gardens or infiltration structures and bio-retention facilities Lake and Pond Management and Maintenance - Ponds and lakes in the Mantua Creek Watershed provide significant aesthetic benefit, and these waterbodies reduce stream slopes, provide storage and attenuate peak runoff rates and serve as sediment basins, trapping sediment carried by the streams. They also provide a diverse aquatic habitat for certain species not found in streams. Programmatic management and maintenance of public and privately held lakes and ponds, including dam GLOUCESTER COUNTY 8-12 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP maintenance, dredging and vegetation management, is needed to sustain these benefits. Stream and Streambank Stabilization - Erosion is significantly accelerated by human activities and development in the watershed. Streambank erosion introduces excess sediment loads to the stream and in turn chokes lakes and ponds with sediment. Watershed-wide stream and stream bank restoration and stabilization priorities and guidelines should be adopted by all involved municipalities and agencies working in the watershed in order to improve water quality, upgrade instream and riparian habitat and reduce sedimentation in receiving waterbodies. Stormwater Outfall Restoration -Failing outfalls are a concern for public safety and they may contribute excess sediment to the receiving waterway. Degraded outfalls and resulting stream bank erosion will be identified during the Gloucester County Stormwater Management Program's outfall mapping and stream bank condition assessment efforts. Repairs can be prioritized throughout the watershed. Well Head Protection Areas and Aquifer Outcrops: Additional stormwater treatment may be needed for recharge in Well Head Protection Areas and/or aquifer outcrop areas, in order to prevent drinking water and ground water contamination. Further evaluation of stormwater recharge quality and the natural attenuation of contaminants are needed. State and federal assistance may be required for these evaluations. Stormwater BMP Maintenance: BMPs required by the new stormwater regulations require long term maintenance if they are to remain effective. The NJDEP's stormwater permits require municipalities to ensure and annually certify that this maintenance is being carried out. Municipalities and their planning boards must develop a method of securing the long term maintenance of these facilities and an inspection and/or certification process that will allow them to ensure maintenance and provide the annual certification. (c) Lower Mantua Creek Regional Stormwater Management Strategies: Mantua Creek is tidally influenced on the main stem up to a point in Wenonah. Edwards run is tidally influenced up to the NJTPK in East Greenwich and Chestnut Run is tidally influenced to Mantua Boulevard in Mantua. These lower tidally influenced portions of the watershed present a different hydrologic regime. The stormwater management strategies developed for the upper portions of the Mantua Creek watershed may not in some cases, be relevant or appropriate for the lower tidal portions of the watershed. Water quality and stormwater management in the lower portions of the Mantua Creek Watershed are significantly influenced by conditions in the Delaware River. The complex nature of the interactions between the Delaware River, the Delaware Estuary and the tidally influenced lower portions of the Mantua Creek Watershed are beyond the scope of this plan and this stormwater strategy discussion. GLOUCESTER COUNTY 8-13 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP (d) Water Quality-TMDL Stormwater Management Strategies The NJDEP has proposed two TMDLs to address impaired waters in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . The first TMDL was proposed for Edwards Run at Jefferson in April 2003 for fecal coliform and is based on the 2002 Integrated Report. This TMDL was approved in September 2003, but has not yet been adopted. A TMDL for phosphorous was proposed for Bethel Lake in 2005. This TMDL is not yet established. Fecal Coliform: Fecal Coliform contamination can be derived from either point or nonpoint sources or both. Point sources generally involve sewage discharges. Because sewage treatment plants have permits that require disinfection to levels well below water quality standards, the proposed TMDLs address non-point sources, involving stormwater runoff. These non-point stormwater sources include runoff from various land uses that transport fecal coliform from geese and other wildfowl, farms, and domestic pets to the receiving water. Non-point sources also include "illicit" sources, such as failing onsite disposal systems and the illegal connections of sanitary drains from buildings to storm sewers. A number of stormwater management strategies were included in the TMDL Fecal Coliform proposal to remediate the affected waterways. Phase II NJPDES Permits and the Municipal Stormwater Regulation Program: Fecal Coliform loadings may be reduced by the new requirements to enforce a pet waste ordinance and an ordinance prohibiting the feeding of wildfowl on public property. The NJPDES permit requirements also require the annual inspection and cleaning (if necessary) of catch basins, the performance of good housekeeping practices at maintenance yards and public education and employee training aimed at reducing non-point sources of pollution, including fecal coliform. Additional reductions in fecal coliform levels may result from the elimination of illicit connections and failing on-site sewage disposal systems. Fecal coliform contributions from agricultural activities can be controlled by the implementation of agricultural conservation management plans and best management practices. Manure: The application of manure in agricultural areas may be a concern. There are farms with horses, cows, goats, and chickens along the stream corridor. Buffers along the stream are generally less than fifty feet, although access is limited by thick undergrowth. Agricultural BMPs may be needed to reduce these impacts. Further Source Identification: Monitoring was recommended to locate and identify significant sources of fecal coliform. GLOUCESTER COUNTY 8-14 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Phosphorous: Phosphorous sources include domestic and industrial wastewater treatment plants that discharge to surface waters, as well as stormwater discharges subject to regulation under the New Jersey Pollutant Discharge Elimination System (NJPDES) municipal stormwater permitting program. Non-point sources include stormwater runoff from land surfaces, malfunctioning sewage conveyance systems, failing or inappropriately designed septic systems and direct contributions from wildlife, livestock and pets. Phase II NJPDES Permits and the Municipal Stormwater Regulation Program: Phosphorous loadings may be reduced through the activities required by the Phase II permits. Low Phosphorous Fertilizer Ordinance: As an additional measure to their NJPDES stormwater permits, Deptford Township and Washington Township are required to adopt an ordinance that prohibits the outdoor application of fertilizers, other than low phosphorous fertilizer. The ordinance must be consistent with a model ordinance provided by the NJDEP. WOODBURY CREEK WATERSHED (a) Gloucester County Stormwater Management Program's Watershed Workshop The Gloucester County Stormwater Management Program held a Woodbury Creek Watershed workshop, inviting representatives from each municipality in the watershed to an evening discussion of stormwater management issues and strategies. The resulting issues and recommended strategies are presented below. Lake and Stream Sedimentation: A number of lakes and some stream sections in Woodbury City are filling with sediment including Bell Lake, the lake near St. Patrick's school and Woodbury Creek itself near Underwood Hospital. Dredging has been done on Bell Lake (twice) and these other areas are currently in need of dredging. The upstream source of the sediment has not been determined. Stream bank stabilization measures have been installed in some areas. Additional sediment control measures enforced through the soil conservation district were suggested. The New Jersey stormwater regulations now require the control and removal of 80 percent of the suspended solids from stormwater in new development and redevelopment. This should reduce the sediment load from new development and redevelopment. However, the watershed is already highly urbanized and it may be necessary to reduce the sediment loading from existing sources in order to reduce the sediment loading to the lakes and streams in this watershed. Localized Roadway Flooding: Localized roadway flooding occurs at a number of locations in the watershed, including Evergreen Avenue near the railroad overpass, and in the neighborhood near Cooper Street and the Burger King . Particularly at GLOUCESTER COUNTY 8-15 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP locations where state, county and municipal roadways intersect, runoff sometimes becomes a burden to local roads and stormwater systems. Ownership and responsibility for stormwater management is sometimes unclear and neglected. The New Jersey stormwater regulations and the design and performance standards, address this issue for all new major development (defined as projects that disturb one or more acres of land or increase the amount of impervious surface by one-quarter acre or more), including new roadway construction and reconstruction. State, County and local roadway agencies must comply with these new regulations and control their stormwater runoff accordingly. Unfortunately, the new regulations can not resolve already existing, localized roadway flooding. Most municipalities and the County Highway Division do not have plans or maps of their stormwater system, nor is there a method in place for State, County or local agencies to share stormwater system information, even though these systems must frequently work together. Furthermore, there are typically few, if any, systems for inspecting and recording the stormwater system's condition or maintenance activities. The Gloucester County Stormwater Program includes an extensive outfall mapping component for Gloucester County's municipalities and the County Highway Division. The program is using GPS dataloggers to map and record data in a digital format for stormwater outfalls throughout the County. The County program will produce outfall maps for each municipality and the County Highway Division and store the digital data in a GIS for easy sharing, updates and retrieval. The outfall maps are a first step in defining the County's stormwater systems. In order to assist municipalities with stormwater system management, the County will purchase dataloggers for use by municipalities in mapping the other components of their stormwater systems (inlets, pipes, ditches, culverts, basins etc.). An understanding of the stormwater systems and drainage may help resolve existing localized roadway flooding, and it will assist the municipalities and County in providing the maintenance assurances required by their new stormwater NJPDES permits. Sanitary Sewer Overflows: There are two areas in Woodbury where sanitary sewer overflows have occurred that may have affected surface water quality on a temporary basis. The sanitary sewer on Lake Drive may not have adequate capacity and has backed-up and overflowed. Also, the County interceptor sewer near the high school has experienced back-ups and has overflowed into Woodbury Creek. The nature and frequency of these problems should be investigated by their respective owners and appropriate corrective actions taken to minimize potential water quality impacts. (b) Regional Stormwater Management Planning There is no Regional Stormwater Management Plan (RSWMP) for the Woodbury Creek Watershed. However, a Regional Stormwater Management Plan was prepared for the GLOUCESTER COUNTY 8-16 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP upper portion (above Grove Street in Haddonfield) of the Cooper River Watershed. The Cooper River Watershed RSWMP was developed by the Camden County Soil Conservation District (CCSCD) in cooperation with the New Jersey Department of Agriculture, State Soil Conservation Committee (SSCC) and the Burlington, CapeAtlantic and Gloucester Soil Conservation Districts and is dated May 2004. Conditions (size, density, soils, geology, topography and land use) in the Woodbury Creek Watershed and the Cooper River Watershed are sufficiently similar to permit the extrapolation of applicable stormwater management recommendations from the Cooper River RSWMP to the Woodbury Creek watershed. The Woodbury Creek Watershed is the smallest watershed fully contained in Gloucester County, draining an area of approximately 21.5 square miles into this five mile-long stream. Woodbury Creek's two major tributaries are Hessian Run and Matthews Branch. Woodbury Creek is tidal up to dam at Broad Street in the Woodbury City. A significant percentage of the Woodbury Creek watershed has been developed and is defined as urban land. Stormwater management practices throughout the watershed have evolved, from the simple collection and discharge of direct runoff to the extended detention and water quality treatment practices required by the new state stormwater design and performance standards. Appropriate stormwater management strategies for the Woodbury Creek watershed are presented below. Stormwater Basin and Existing Development Retrofit - Older under-maintained stormwater basins may not adequately provide mitigation for the most frequently occurring rain storms nor provide stormwater quality treatment. To improve the water quality and mitigate peak flows during these high frequency storms, existing stormwater basins can be retrofitted. Additionally, existing development retrofit strategies can be implemented during stormwater infrastructure improvements or as a separate retrofit project, including such techniques as roof water infiltration or reuse, stormwater inlet modifications, roadside rain gardens or infiltration structures and bio-retention facilities. Stream and Streambank Stabilization - Erosion is significantly accelerated by human activities and development in the watershed. Streambank erosion introduces excess sediment loads to the stream and in turn chokes lakes and ponds with sediment. Watershed-wide stream and stream bank restoration and stabilization priorities and guidelines should be adopted by all involved municipalities and agencies working in the watershed in order to improve water quality, upgrade instream and riparian habitat and reduce sedimentation in receiving waterbodies. Regional Storage - Runoff from older developed areas in the watershed may not be adequately managed on site. Peak flows and the volumes of runoff generated from even a small rainfall event may be adequate to cause immediate responses in the streams and contribute significantly to the stream bank erosion and sedimentation. Stream response should be evaluated and regional storage options thoroughly investigated prior to initiation of stream restoration and lake dredging. Regional GLOUCESTER COUNTY 8-17 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP storage includes strategies to store excess runoff in either newly constructed wetlands or ponds or the rehabilitation of existing, but inadequate or failed facilities. Though costly, regional storage may provide the best opportunity to avoid continuing degradation and maintenance costs Redevelopment: - Although much of the watershed is developed, during redevelopment, stormwater runoff from previously unmanaged or under-managed sites will be mitigated. All municipalities must adopt the required stormwater control ordinances for new development and redevelopment and requiring control of runoff from nearly 90 percent of the average annual rainfall on site, groundwater recharge and an 80 percent removal of total suspended solids. Low Impact Development Techniques - Low Impact Development (LID) techniques provide a variety of stormwater control measures to maintain or restore the pre-developed hydrologic characteristics of a site. (See LID recommendations above) Stormwater Outfall Restoration -Failing outfalls are a concern for public safety and they may contribute excess sediment to the receiving waterway. Degraded outfalls and resulting stream bank erosion will be identified during the Gloucester County Stormwater Management Program's outfall mapping and stream bank condition assessment efforts. Repairs can be prioritized throughout the watershed. Geese Management: Increasing geese populations have become a problem throughout both the suburban and rural portions of southern New Jersey. Stormwater detention ponds, grass and lawn areas and farm fields provide habitat for geese. Although the populations sometimes add to the areas aesthetics, there are adverse impacts to water quality and the land that result, especially with over population. The New Jersey Stormwater regulations require municipalities to pass ordinances prohibiting the feeding of waterfowl. In addition, municipalities should encourage land cover types and practices in new development that discourage geese from resting, nesting and feeding in areas that would otherwise provide attractive habitat, such as stormwater management facilities. Lake and Pond Management and Maintenance - Ponds and lakes in the Woodbury Creek Watershed provide significant aesthetic benefit, and these waterbodies reduce stream slopes, provide storage and attenuate peak runoff rates and serve as sediment basins, trapping sediment carried by the streams. They also provide a diverse aquatic habitat for certain species not found in streams. Programmatic management and maintenance of public and privately held lakes and ponds, including dam maintenance, dredging and vegetation management, is needed to sustain these benefits. (c) Water Quality-TMDL Stormwater Management Strategies GLOUCESTER COUNTY 8-18 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP The NJDEP has proposed two (2) sets of TMDLs that address impaired water bodies in this watershed. The full text of these proposals can be found and downloaded at the following link: http://www.nj.gov/dep/watershedmgt/tmdl.htm#intro . Both of the sets of TMDLS were proposed by the NJDEP in April 2003 and were based on the 2002 Integrated Report. These TMDLs were approved in September 2003, but have not yet been adopted. There are TMDL proposals for phosphorous in Bell Lake and Woodbury Lake. Waste load allocation reductions have been proposed for the affected waterways. The TMDL proposals discuss possible sources as well as the methods used to develop the TMDLs and remediation plan. Phosphorous: Phosphorous sources include domestic and industrial wastewater treatment plants that discharge to surface waters as point sources, as well as stormwater non-point source discharges subject to regulation under the New Jersey Pollutant Discharge Elimination System (NJPDES) municipal stormwater permitting program. Non-point sources include stormwater runoff from various land uses, deposition from the air, malfunctioning sewage conveyance systems, failing or inappropriately designed septic systems and direct contributions from wildlife, livestock and pets. The NJDEP Bell Lake TMDL proposal estimates that about 70 percent of the phosphorus load on Bell Lake is from medium and high density residential land use and that 26 percent is from commercial land use. The NJDEP TMDL proposal for Woodbury Lake indicates that about 51 percent of the phosphorous load is from medium and high density residential land use, 11 percent is from low and rural residential land use and 16 percent is from commercial land use. The NJDEP's TMDL percent reduction in phosphorous load required from all land uses to meet water quality standards is 94 percent for Bell Lake and 85 percent for Woodbury Lake. The NJDEP TMDL proposals indicate that additional monitoring is required in order to develop Lake Restoration Plans to implement the TMDLs. Woodbury Lake is scheduled for characterization by the NJDEP for the summer of 2007 and Bell Lake is scheduled for the summer of 2009. Development of lake restoration plans, based on the lake characterizations, is then scheduled for the spring of the proceeding year. Typical stormwater management strategies that may be employed include: Phase II NJPDES Permits and the Municipal Stormwater Regulation Program: Phosphorous loadings may be reduced through the activities required by the Phase II permits. BMP Implementation: Additional phosphorous loadings from new development and redevelopment may be reduced through LID - BMP implementation. Low Phosphorous Fertilizer Ordinances: As an additional measure to their GLOUCESTER COUNTY 8-19 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP NJPDES stormwater permits, municipalities may be required to adopt an ordinance that prohibits the outdoor application of fertilizers, other than low phosphorous fertilizer. The ordinance must be consistent with a model ordinance provided by the NJDEP. GLOUCESTER COUNTY 8-20 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 9. Mitigation Plans Section 6 of this MSWMP addresses the design and performance standards for stormwater management measures applicable to major development projects. In some instances, however, site specific conditions may prevent strict compliance with these standards. In accordance with N.J.A.C. 7:8-4.2(c)11, such projects may be granted a variance or exemption from these standards by the Municipal Zoning Board or Planning Board, if a mitigation plan is approved by the Board and mitigation plan implementation is a condition of the major development project approval. To the extent possible, a mitigation plan should offset the impacts on groundwater recharge, stormwater quantity control, and/or stormwater quality control that would be created by granting the variance or exemption to the development project. In addition, to the extent possible, the proposed mitigation project(s) should be located within the same HUC14 sub-drainage basin(s) as the major development project, and if not, within the same Watershed Management Area. A mitigation plan may include more than one mitigation project, in order to achieve the objectives of location and/or impact offsets. The Municipal Stormwater Coordinator Public Works Director (if different), and Engineer (if different) will develop and maintain a list of mitigation projects that can be implemented in order to comply with the mitigation plan provisions of this MSWMP. Included as part of the list of projects will be quantitative estimates of the offsets to groundwater recharge, stormwater quantity control, and/or stormwater quality control for each of the mitigation projects. The mitigation plan must include a detailed plan and schedule for implementation of the mitigation project(s). Implementation may be accomplished as a part of the major development project, or the Municipality may accept funding for the project(s), at the discretion of the Municipality. If the Municipality chooses to accept funding in lieu of implementation, such funding shall include any costs that must be incurred by the Municipality in implementing the mitigation project(s), including design, permitting, land and/or easement acquisition, construction, and provisions for the long-term operation and maintenance of the mitigation project(s). A mitigation plan must clearly demonstrate that strict compliance with the design and performance standards for stormwater management measures cannot be achieved. Before submitting a mitigation plan that does not meet the objectives of the MSWMP with regard to mitigation project location and/or impact offsets, the developer shall request that the Municipality determine whether it can identify other projects, consistent with those objectives, that the Municipality can add to its list. GLOUCESTER COUNTY 9-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP A mitigation plan that includes a mitigation project or projects not taken from the Municipality's list may be submitted for review by the Municipality. Such projects must be reviewed and accepted by the Municipality, before a mitigation plan including such projects can be submitted to the Zoning Board or Planning Board for review. A mitigation plan including projects not already listed by the Municipality must include quantitative estimates of the offsets to groundwater recharge, stormwater quantity control, and/or stormwater quality control for each of those unlisted mitigation projects. The mitigation plan must include provisions for ensuring the long-term operation and maintenance of the mitigation project(s), by clearly identifying the party responsible for the operation and maintenance of each mitigation project. If the Municipality accepts a mitigation plan that designates the Municipality as the responsible party for mitigation project operation and maintenance, provisions for funding the associated costs by the developer shall be included in the mitigation plan. If implementation of a mitigation plan is a condition of approval for a major development project by the Municipal Zoning Board or Planning Board, such approval shall also include the requirement that the developer execute a funding agreement with the Municipality for mitigation plan implementation, as a further condition of approval. The funding agreement, in form acceptable to the Municipality, shall provide for funding by the developer of all costs to implement the plan that will be incurred by the Municipality, including the cost of long-term operation and maintenance of any mitigation projects. GLOUCESTER COUNTY 9-2 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP Section 10. Gloucester County Stormwater Management Program The Gloucester County Board of Freeholders, in an effort to help municipalities address non-point source pollution and stormwater management, has established a Gloucester County Stormwater Management Program that provides assistance with many of the NJPDES permit requirements. The Gloucester County Stormwater website at http://www.gcstormwater.com provides a web link to learn more about the new NJDEP stormwater management rules, the NJPDES stormwater management permit requirements and the ongoing Gloucester County Stormwater Management Program. The purpose of the program is to help municipalities meet the NJDEP's permit requirements through a regional effort in a fiscally responsible manner. The County is addressing a number of each town's permit requirements to help alleviate the financial burden, while providing coordinated efforts that will better manage our environment. By utilizing a countywide watershed based approach; the end product will be a plan for each municipality tailored to the specific needs of the watershed. The Gloucester County Freeholder Board's watershed-based approach to stormwater management is unique in the state of New Jersey. Through economies of scale and the use of technology, not necessarily available at the local level, the regional plan saves local taxpayers more, by coordinating preparation of the NJDEP required MSWMP for each of the 24 municipalities. The County not only saves time and money, but is better prepared to control non-point source pollution and to encourage improvements in water quality throughout Gloucester County. The overall long term goal of stormwater management is to have all waters in New Jersey meet water quality standards for their designated uses. That is, ensure that our rivers, lakes and coastal waters are fishable, swimmable, and support healthy ecosystems. The New Jersey Nonpoint Source and Stormwater Management Program Plan, (NJDEP, December, 2000) indicates that "Nonpoint sources of pollution from stormwater runoff have long been thought to be major contributors to the degradation of water quality in New Jersey." It further states: The task ahead will not be easy. Controlling point sources of pollution took many years, many new governmental and private partners and billions of federal and private dollars. Successfully managing nonpoint sources of pollution and stormwater runoff can be expected to require a similar if not greater commitment. COUNTY OF GLOUCESTER 10-1 FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP APPENDIX A. WATERSHED FIGURES BT-1 BT-2 BT-3 BT-4 BT-5 BT-6 BT-7 BT-8 MC-1 MC-2 MC-3 MC-4 MC-5 MC-6 MC-7 MC-8 WC-1 WC-2 WC-3 WC-4 WC-5 WC-6 WC-7 WC-8 Figure 9 for Appendix A GLOUCESTER COUNTY FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP APPENDIX B. WATER QUALITY DATA GLOUCESTER COUNTY FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP APPENDIX C. MUNICIPAL REGULATION CHECKLIST GLOUCESTER COUNTY FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP APPENDIX D. LOW IMPACT DEVELOPEMNT CHECKLIST GLOUCESTER COUNTY FEBRUARY 2006 WATERSHED / MUNICIPAL STORMWATER MANAGEMENT PLAN DEPTFORD TOWNSHIP APPENDIX E. DEPTFORD TOWNSHIP MITIGATION PROJECTS GLOUCESTER COUNTY FEBRUARY 2006 Exhibit 2 - Township of Deptford Stormwater Outfalls Map 1 DEPTFORDTOWNSHIP,NJ STORMWATER OUTFALLS Legend Outfalls - County Outfalls - Municipal Municipal Boundary DelawareFirstMap,StateofNewJersey,Esri,HERE,Garmin,INCREMENTP,USGS,METI/NASA,EPA, USDA Exhibit 3 - Township of Deptford Stormwater Pollution Prevention Plan 149  !"# $%&'()$%*+,-+,. /-0-*-*  1782 17820 1782 1782! 1782 1782B 1782C 1782D 1782E 1782 1782 17820 1782 1782! 1782 #$$$&'()*+,-+./*./0 332432538643825537819 :3;7<578643825537819 57;7;323539385435779=57536438255378>9 5935739?58336438255378>039@553235>9 :73953A;3774528355787=5783822643353882453533=73823>!5393@55233;2337452239539 ?8933 6438255378>9 58335334=6438255378>59 395>33957822837356438255378>078>539@553235 5782283735:3587655=6438255378>59 439@554332433553933F389 39?538@38?438357 6438255378> 24733 83=6438255378>9369 ?56343 6438255378>B359 57823538135343533364382553789 75343G2223H73976782357643825537809 ?4573433836438255378397809 23456789 7 473 5387520 !"0"00 0  8535" 4353359 W366537359 i5583"2553 #$$$&'()*+#$$$,-.)/-)0-(1 283789 3 543565543478373 5428 #9'():.9-($(';(.)<''(=>?.9'(@#$<A CDECGHHIJKDLMNOEPGQRDJSKTOUIJGLHILVILH XYZ[\]]Y^_`abcJJGHHIJKDLdVIUHeDJV^LfgDJh j?=>k>=l.m@1An-1o'?1>0m-p'(/.q'(r-k-m'o)-?9$('q-s9 #9'():.9-(/.?.;-)-?9n-k>-: 8535" 4353359 8535" 4353359 8535" 4353359 85353"549353 8535" 4353359 85353"549353 85353"549353 85353"549353 85353"549353 tDLuHvuLwJxKDLMyDzLKvGU{LhGLIIJ wJGuLTPuOhvMyDzLKvGUNPuLLIJ |9}-(#$$$,-.)/-)0-(1 yvD~uKIz~uLMtJgMyDzLKvGUuLuhIJ GLuuzuVKSGMyDzLKvGUPIJS DLuPVwuLSKMGJIQHDJDeD~~OLGHxIIPDU~ILH 23456789 7 473 538752 0!" 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FGHIKLLMNOLNPIQ 0>R; 5343895533;974539;S36 375;38"294 538T89;3U VIOQWIXLYGZ[\G]HOMNX^Z[NHKH_I`QaQbb 23456789 7 473 5387520 !"0"00 00 Exhibit 4 - Township of Deptford 2022 Annual Report 1 Tier A MSRP Annual Report Summary Service ID: Facility Name: Reporting Period: NJPDES Permit #: Activity ID: 1552618 DEPTFORD TWP January 1, 2022 through December 31, 2022 NJG0152153 DST220001 Contacts Name: Title: Contact Type: Organization Name: Organization Type: E-Mail: Phone: Contact Address: Rob Ritterson Superintendent of Public Works Stormwater Coordinator DEPTFORD TWP Municipal rritterson@deptford-nj.org (856) 228-3654 (Fax Number) (856) 628-0274 (Cell Phone Number) (856) 228-4719 (Work Phone Number) 1011 COOPER ST Deptford Twp, New Jersey 08096 Uploaded Attachments Attachment Name Storm Water Attachment Description Annual Report Details - Part A File Name tier_a_ms4_annual_supplemental_questionnaire_2022.pdf Municipality Information Team member responsible for completing the report: Team member email address: Stormwater Pollution Prevention Plan Rob Ritterson Rritterson@deptford-nj.org 1. Has the municipality revised its Stormwater Pollution Prevention Plan during the last calendar year? No 2. Date of the last revised SPPP: Public Notice 1. Is the municipality complying with applicable State and local public notice requirements when providing for public participation in the ongoing development and implementation of the stormwater program? Yes Report Details - Part B Post-Construction Stormwater Management in New Development and Redevelopment 1. Is the municipality reviewing and approving major development residential projects in accordance with the Residential Site Improvement Standards (RSIS)? Yes 2. Did the municipality adopt a municipal stormwater management plan? Yes 3. Most recent date of adopted municipal stormwater management plan: 09/11/2006 4. Status of this plan (if not adopted): 5. Did the municipality adopt the municipal stormwater control ordinance provided by NJDEP without change? Yes 6. Most recent date the municipality adopted a municipal stormwater control ordinance: 09/11/2006 7. What is the current status of the ordinance? 8. Did the municipality submit the adopted municipal stormwater management plan to the appropriate county review agency for approval? Yes 9. Most recent date the adopted Municipal Stormwater Management Plan was submitted to the appropriate county review agency for approval: 09/11/2006 10. If yes, did the municipality send the adopted municipal stormwater control ordinance to the appropriate county review agency for approval? Yes 11. Most recent date the adopted Municipal Stormwater Control Ordinance was submitted to the appropriate county review agency for approval: 09/11/2006 12. Status of county review: Approved 13. Did the municipality adopt the review agency's required amendments and resubmit to the county review agency? 14. Is the Stormwater Control Ordinance in effect? Yes 15. Most recent effective date of Stormwater Control Ordinance: 09/11/2006 16. Ordinance Number(s): 0.09.06 17. What is the current status of the adopted plan and ordinance? 18. Are you reviewing projects as part of your site plan and sub-division approval process to ensure that they comply with your municipality's effective municipal stormwater control ordinance(s)? Yes 19. How many projects that were subject to either the municipal stormwater control ordinance or the stormwater provisions of RSIS did the municipality approve? 0 20. Does the municipal stormwater management plan contain a mitigation plan? Yes 21. Has the municipality granted any variances or exemptions from the design and performance standards for stormwater management measures set forth in the approved municipal stormwater management plan and stormwater control ordinance(s)? No 22. If yes, how many variances or exemptions from the design and performance standards has the municipality granted? 23. If granted any variances or exemptions, did you submit a written report to the county review agency describing the variance or exemption and the required mitigation? 24. Does the municipality's plan review evaluate storm drain inlet protection for solids and floatables in accordance with Attachment C of the permit? Yes 25. Does the municipality require plans for long-term operation and maintenance for stormwater BMPs? Yes 26. Are you ensuring that adequate long-term operation and maintenance of stormwater BMPs is being performed on property that you do not own or operate? Please keep an inventory of stormwater BMPs indicating type, function and location in a format provided by the Department onsite and available for inspection or upon request. 27. Briefly indicate how this is being accomplished (e.g., ordinance requiring operation and maintenance by private entity; operation and maintenance by you or other governmental entity): 28. Is the municipality's stormwater management plan re-examined at each re-examination of the master plan in accordance with N.J.A.C. 7:8-4? 29. Date re-examination report was last adopted: Yes Inspections by township Engineer N/A - we did not re-examine our master plan this year Report Details - Part C Local Public Education Program and Outreach 1. Has the municipality developed a Local Public Education Program? Yes 2. Has the municipality conducted educational activities that total the minimum number of points required by the permit? Yes Storm Drain Inlet Labeling 1. Has the municipality established a storm drain inlet labeling program? Yes 2. Indicate the percentage labeled to date: 100% 3. Other Amount: 4. Is your municipality maintaining the labels (i.e. replacing and/or repainting)? Yes Community Wide Ordinances Have you adopted and are you enforcing a regulatory mechanism for: 1. Pet Waste Ordinance: 2. Date adopted: 3. Litter Ordinance/State Litter Statute: 4. Date adopted: 5. Improper Disposal of Waste Ordinance: 6. Date adopted: 7. Wildlife Feeding Ordinance: 8. Date adopted: 9. Containerized Yard Waste Ordinance / Yard Waste Collection Program Ordinance: 10. Date adopted: 11. Illicit Connection Ordinance: 12. Date adopted: 13. Refuse Container/Dumpster Ordinance: 14. Date adopted: 15. Private Storm Drain Inlet Retrofitting Ordinance: 16. Date adopted: 17. Status of these ordinances (if not adopted): 18. Method(s) of enforcement (e.g., summons, warnings, additional signs, etc.): 19. Are you distributing the Pet Waste Information Sheets with pet licenses? Yes 04/02/2007 Litter Ordinance 04/02/2007 Yes 04/02/2007 Yes 04/02/2007 Adopted Both 04/02/2007 Yes 04/02/2007 Yes 04/02/2007 Yes 03/01/2001 The department of code enforcement Yes Report Details - Part D MS4 Outfall Pipe Mapping 1. Has the municipality completed the mapping of the MS4 outfall pipes? 2. Date completed: 3. Number of outfall pipes that you operate in the municipality: 4. How many MS4 outfall pipes are mapped? Illicit Connection Elimination Program Yes 04/01/2007 250 250 1. Does the municipality have an ongoing program to detect and eliminate illicit connections to municipally owned or operated outfall pipes? Yes 2. How many outfall pipes were inspected during the past calendar year? 196 3. Number of illicit connections detected during the past calendar year: 0 4. Number of illicit connections eliminated during the past calendar year: 0 Street Sweeping Program 1. In the past calendar year, were all required streets swept? Yes 2. What was the total number of miles swept? 411 List the amount of materials collected for each month in 2022. 3. Units: 4. January: 5. February: 6. March: 7. April: 8. May: 9. June: 10. July: 11. August: 12. September: 13. October: 14. November: 15. December: 16. Total (Note: 1.053 cubic yards = 1 ton): 17. Explain the reason if reporting zero (0) for a month above: Storm Drain Inlet Retrofitting Tons 5.85 9.9 16.46 16.19 0 13.89 0 39.45 5.68 21.57 0 0 128.99 Operator vacation, maintenance of sweeper, and season change 1. Has the municipality completed repaving, repairing, reconstruction, or alterations on any road surfaces in direct contact with municipally owned or operated storm drain inlets? Yes 2. Approximately what percentage of storm drains within the municipality currently meet the standard? 95 Stormwater Facility Maintenance Stormwater facilities include, but are not limited to, catch basins, extended detention basins, low flow bypasses, underground detention, dry wells, manufactured treatment devices, pervious paving buffers, infiltration basins/trenches, sand filters, constructed wetlands, wet ponds, bioretention, rooftop vegetated cover, vegetative filters, and stormwater conveyance systems. Stormwater facility inventories that indicate the type, function, and location of the facility must be kept onsite and available for inspection or upon request in a format provided by the Department. The format is available as SPPP Form 13 at: http://www.nj.gov/dep/dwq/pdf/Tier_A/A%20-%20pdf%206.pdf. 1. Have you developed a Stormwater Facility Maintenance Program? Yes Other Stormwater Facilities 1. Were all stormwater facilities that you operate inspected? Yes 2. Were any found to be in need of cleaning or repair in order to function properly? Yes 3. During the past calendar year, were any stormwater facilities (excluding catch basins) cleaned? Yes 4. Were repairs made? Yes 5. Describe repair(s) or if repairs have not yet been made, provide a schedule Replaced pipe, installed pipe, unclogged pipe, repaired head wall, uncovered for the repair(s): pipe Catch Basins 1. Total number of catch basins that the municipality operates: 2. Total number of catch basins inspected: 3. Total number of catch basins cleaned: 4. Amount of materials removed from catch basins, in tons, during the past calendar year: 5. Units: 1432 1118 109 5.4 Tons Report Details - Part E Outfall Pipe Stream Scouring Remediation For all outfall pipes undergoing remediation through a scour remediation program, attach additional page(s) as necessary indicating the location of the outfall pipe (including the alphanumeric identifier), the repair start date, and the repair completion date. 1. Has the municipality developed a prioritized list of outfall pipes requiring outfall pipe stream scouring remediation? Yes De-icing Material and Sand Storage 1. Does the municipality have a permanent structure for all de-icing material storage? 2. If sand is being stored outside, is it set back 50 feet from storm sewer inlets, ditches or other stormwater conveyance channels, and surface water bodies? Yes N/A - no sand stored outdoors Fueling Operations 1. Is the municipality implementing Best Management Practices for vehicle fueling and receiving of bulk fuel deliveries at maintenance yard operations in accordance with Attachment E of the permit? Yes Vehicle Maintenance 1. Is the municipality implementing Best Management Practices for vehicle maintenance and repair activities at maintenance yard operations in accordance with Attachment E of the permit? Yes Good Housekeeping Practices 1. Is the municipality implementing Good Housekeeping Practices for all materials or machinery listed in the Inventory Requirements for Municipal Maintenance Yard Operations (including maintenance activities and ancillary operations) in accordance with Attachment E of the permit? Yes Equipment and Vehicle Washing 1. Has the municipality implemented measures to properly handle the discharge of equipment and vehicle wash wastewater from municipal maintenance yard operations? 2. Please indicate which option you implemented to eliminate the unpermitted discharge: 3. Date the management measure was implemented: 4. What is the NJPDES permit number that authorizes the discharge of vehicle and equipment wash wastewater? 5. Is the municipality maintaining records of vehicle and equipment washing? Yes Ceased the discharge (no longer wash onsite) 04/01/2009 N/A - we do not wash our vehicles Annual Employee Training 1. Did the municipality conduct training for employees on stormwater related topics as required under the MS4 permit (e.g., police officers trained on ordinances)? 2. List date(s) of employee training: Yes 7/21/22, 8/4/22, Report Details - Part F Sharing of Responsibilities Does the municipality share services with another entity to satisfy a permit requirement? Yes Incidents of Non-compliance Based on the answers you provided above, the Department has identified the following possible permit compliance issues. Please complete the Incidents of Non-compliance section and identify steps being taken to correct these deficiencies. - Your municipality has not revised your Stormwater Pollution Prevention Plan to incorporate changes required by the renewal permit. 1. Did your municipality have any incidents of non-compliance? 2. Identify the steps being taken to remedy the noncompliance and to prevent such incidents from recurring. (If the text box is not large enough to complete this section, please provide your report as an attachment and upload it on the next screen. Please reference the attachment in the textbox.) Yes Our Township Engineers are in the process of updating a new plan to make it more efficient and effective. Certification Certifier: Certifier ID: Challenge/Response Question: Challenge/Response Answer: Certification PIN: Date/Time of Certification: Rob Ritterson RITTERSON What is your favorite pet? ****** ****** 05/05/2023 07:22 "I certify under penalty of law that this Annual Report and Certification and all attached documents were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate this information. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering this information, the information in this Annual Report and Certification and all attached documents is, to the best of my knowledge and belief, true, accurate and complete. "I certify that the municipality is in compliance with its stormwater program, Stormwater Pollution Prevention Plan (SPPP) and the NJPDES Tier A Municipal Stormwater General Permit No. NJG0152153 except for any incidents of non-compliance which are identified herein. For any incidents of non-compliance, the Annual Report identifies the steps being taken to remedy the non-compliance and to prevent such incidents from recurring. "I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for purposely, knowingly, recklessly, or negligently submitting false information." Please note, no changes will be allowed to be made to this report upon its certification. If you need to correct or modify the report after certification, please contact your case manager at (609) 633-7021 so they may enable that function. Rob Ritterson General 05/05/2023 Date Instructions for Saving and Submitting the 2022 MS4 Tier A Permit Annual Report - Supplemental Questionnaire 1. Once opened, please save the Questionnaire to your computer, using the "Save As" function. This can be done by going to FILE > then Save As... or Shift + Ctrl + S. Name the document Supplemental_Questionnaire_TOWN NAME 2. Complete the Questionnaire. 3. Once you have completed the Questionnaire, use the "Save" function to save your answers to the Questionnaire to your computer . This can be done by going to FILE > then Save or Ctrl + S. 4. The completed and saved Questionnaire must then be uploaded as an attachment, in Part 7, to your Annual Report before the Annual Report is submitted to the Department. 5. To access the Annual Report, open the link to "NJDEP Online Portal" at http://www.nj.gov/dep/dwq/tier_a.htm. In Part 7, you will be asked to complete information regarding the file(s) to be uploaded. Navigate to your saved Questionnaire and then hit the "Upload" button in the lower right section of Part 7. The Annual Report will indicate if the Questionnaire was successfully uploaded. Then click on the "Continue" button and proceed with finalizing your Annual Report. Your Annual Report will be considered incomplete if the Supplemental Questionnaire is not attached. If you experience any difficulty in this process, please contact your municipal case manager at 609-6337021. Please note that use of Adobe Acrobat Reader DC is recommended. This free software is available for download at http://get.adobe.com/reader/ . If you have an earlier version of Adobe Reader, please go to the Adobe website at http://tv.adobe.com/watch/acrobat-x-tips-tricks/quick-tip-how-to-save-formdata-in-adobe-reader/ for detailed instructions on how to save your completed Questionnaire. 2022 MS4 Tier A Permit Annual Report - Supplemental Questionnaire A. Municipal Information Municipality: Deptford General Information County: Gloucester Stormwater Coordinator: Rob Ritterson Phone: 856-628-0274 Email: rritterson@deptford-nj.org Public Involvement and Participation Provide a web address for each of the following: Current Stormwater Pollution Prevention Plan (SPPP): www.deptford-nj.org Municipal Stormwater Management Plan: Local Public Education and Outreach Report the number of points obtained in each public education and outreach category: General Public Outreach: 3 Watershed/Regional Collaboration: 0 Targeted Audiences Outreach: 0 Community Involvement Activities: 1 School/Youth Education and Activities: 2 Has the municipality advertised public education and outreach activities on the municipalities website?: Yes No Post Construction Stormwater Management Note: This portion of the annual report should be completed by a person knowledgeable in post-construction stormwater management project review and approvals. Name of person completing this section: Rob Ritterson Affiliation of person completing this section: Superintendent Please fill out the attached major development project list for all major developments approved in the last calendar year. Community Wide Ordinances Does the municipality maintain a database to track all instances of community wide ordinance violations?: Yes No Provide the web address for each ordinance and report the entity responsible for the enforcement of each ordinance as well as the number of warnings and violations issued for each in the past calendar year: Pet Waste Ordinance Entity: Wildlife Feeding Ordinance Entity: Litter Control Ordinance Entity: Improper Disposal of Waste Ordinance Entity: Warnings/Violations: N/A Warnings/Violations: N/A Warnings/Violations: N/A Warnings/Violations: N/A Containerized Yard Waste/Yard Waste Collection Program Ordinance Entity: Warnings/Violations: N/A Private Storm Drain Inlet Retrofitting Ordinance Entity: Warnings/Violations: N/A Illicit Connection Ordinance Entity: Warnings/Violations: N/A Stormwater Control Ordinance Entity: Warnings/Violations: N/A Municipal Maintenance Yard and Other Ancillary Operations Does the municipality maintain a list of all materials and machinery located at each municipal maintenance yard and ancillary operation which could be a source of pollutants in a stormwater discharge?: Yes No Has the municipality implemented Best Management Practices as described in Attachment E for all applicable activities at each municipal maintenance yard and ancillary operation owned or operated by the municipality?: Yes No Does the municipality maintain an inspection log detailing conditions requiring attention and remedial actions taken at municipal maintenance yards and other ancillary operations?: Yes No Does the municipality have an underground vehicle wash water storage tank? Yes No Employee Training Does the municipality maintain records of employee training including sign in sheets, dates of training, and training agendas?: Yes No Does the municipality maintain a list of the names and dates of the municipal board and governing body members that review and approve applications for development and redevelopment projects who have completed the "Asking the Right Questions in Stormwater Review" training tool?: Yes No Does the municipality maintain a list of the names and dates of individuals that review development and redevelopment projects for compliance with NJAC 7:8 on behalf of the municipality who have completed the Department approved stormwater management training once every 5 years?: Yes No Outfall Pipe Mapping Check the box(es) for the components included on the municipality's outfall pipe map in addition to MS4 outfalls and surface water bodies: Conveyances (Pipes,Swales, Ditches) Culverts Block and Lots Green Infrastructure Manufactured Treatment Devices Stormwater Management Basins Storm Drain Inlets Streets/Roadways Subsurface Infiltration/Detention Basins Has the municipality included the outfall pipe map in the SPPP?: Yes No Does the municipality update the outfall pipe map annually?: Yes No Does the municipality's map identify outfalls that do not discharge to surface waters?: Yes No Stream Scouring How many outfalls did the municipality inspect for stream scouring in the past calendar year?: 30 How many instances of stream scouring were found during those inspections?: 6 How many instances of stream scouring were remediated in the past calendar year?: 6 Stormwater Facilities Maintenance Does the municipality keep up to date stormwater facility maintenance logs and inspection records for stormwater facilities owned or operated by the municipality?: Yes No Bioretention Systems How does the muDnriyciWpaeliltlsy ensure adequate long-term cleaning, operation, and maintenance of stormwater facilities not ownGedraossr oSwpearleatsed by the municipality?: Code EnforcemMenatnufactured Treatment Devices (MTDs) Rooftop Vegetated Cover Vegetative Filters Retrofitted Storm Drain Inlets Does the municipality keep up to date stormwater facility maintenance logs and inspection records for stormwater facilities not owned or operated by the municipality?: Yes No Total Maximum Daily Load (TMDL) Has the municipality reviewed TMDL reports to identify those which are relevant to the municipality's water bodies?: Yes No How many TMDLs were found to be applicable to the municipality?: How has the municipality used TMDL information to assist in the prioritization of stormwater facility maintenance?: N/A Has the municipality updated its SPPP to include TMDL information?: Yes No Has the municipality incorporated any additional or optional measures? If so, please elaborate: N/A Major Development Project List Provide the following information for each approved development or redevelopment project that is regulated by the Tier A MS4 NJPDES Permit, and not exempted under N.J.A.C. 7:8-1.6(b). Tier A Municipality: D__e_p_tf_o_r_d______________ NJPDES#: NJG_________________ PI ID#: ______________ Calendar Year: _22_00_22_22____ Project Name / Date Complete Application Received Raising canes Block(s) / Lot(s) 5G3 NJDEP Total Area Construction Land Use of Stormwater Permit Disturbance Permit Auth.# Required? (acres) (Y/N) Increase of Impervious > acre? (Y/N) Blk 200.01 Yes Lot 25.01 Y N 1.5 YN Variance or Exemption Granted As Per Part IV.B.4.h of the Tier A MS4 Permit YN Design Reviewer(s) CME Associates, Micheal Roberts PE A3 Industrial Blk 417.01 Yes Lot 10 Y N 8.79 YN YN CME Associates, Micheal Roberts PE Chick fil A HHJ Petro Blk 5.01 Yes Lot 13.01 Blk 387.01 Yes Lot 59 60 61 Y N 1.36 Y N 6.8 YN YN CME Associates, Micheal Roberts PE YN YN CME Associates, Micheal Roberts PE YN YN YN YN YN YN Major Development Project List Provide the following information for each approved development or redevelopment project that is regulated by the Tier A MS4 NJPDES Permit, and not exempted under N.J.A.C. 7:8-1.6(b). Tier A Municipality: _D_e_p_t_fo_r_d______________ Project Name / Date Complete Application Received Block(s) / Lot(s) NJPDES#: NJG_________________ PI ID#: ______________ Calendar Year: ________ 5G3 NJDEP Total Area Construction Land Use of Stormwater Permit Disturbance Permit Auth.# Required? (acres) (Y/N) Increase of Impervious > acre? (Y/N) Variance or Exemption Granted As Per Part IV.B.4.h of the Tier A MS4 Permit Design Reviewer(s) YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN This Supplemental Questionnaire must be attached to your Annual Report to be considered complete. If you experience any difficulty in this process, please contact your municipal case manager at 609-633-7021. 1. Once you have completed the Questionnaire, use the "Save" function to save your answers to the Questionnaire to your computer. This can be done by going to FILE > then Save or Ctrl + S. 2. The completed and saved Questionnaire must then be uploaded as an attachment, in Part 7, to your Annual Report before the Annual Report is submitted to the Department. 3. To access the Annual Report, open the link to "NJDEP Online Portal" at http://www.nj.gov/dep/dwq/tier_a.htm. In Part 7, you will be asked to complete information regarding the file(s) to be uploaded. Navigate to your saved Questionnaire and then hit the "Upload" button in the lower right section of Part 7. The Annual Report will indicate if the Questionnaire was successfully uploaded. Then click on the "Continue" button and proceed with finalizing your Annual Report. Exhibit 5 - Township of Deptford Stormwater Control Ordinance 2658 Exhibit 6 - Letter and Violation to Property Owners 14845 Exhibit 7 - Township of Deptford 2021 Annual Report 1 Tier A MSRP Annual Report Summary Service ID: Facility Name: Reporting Period: NJPDES Permit #: Activity ID: 1373508 DEPTFORD TWP January 1, 2021 through December 31, 2021 NJG0152153 DST170001 Contacts Name: Title: Contact Type: Organization Name: Organization Type: E-Mail: Phone: Contact Address: Rob Ritterson Superintendent of Public Works Stormwater Coordinator DEPTFORD TWP Municipal rritterson@deptford-nj.org (856) 228-4719 (Work Phone Number) (856) 628-0274 (Cell Phone Number) (856) 228-3654 (Fax Number) 1011 COOPER ST Deptford Twp, New Jersey 08096 Uploaded Attachments Attachment Name Supplemental Questionnaire Attachment Description Annual Report Details - Part A File Name Tier_A_MS4_Annual_Supplemental_Questionnaire_2021.pdf Municipality Information Team member responsible for completing the report: Team member email address: Stormwater Pollution Prevention Plan Rob Ritterson Rritterson@deptford-nj.org 1. Has the municipality revised its Stormwater Pollution Prevention Plan during the last calendar year? No 2. Date of the last revised SPPP: Public Notice 1. Is the municipality complying with applicable State and local public notice requirements when providing for public participation in the ongoing development and implementation of the stormwater program? Yes Report Details - Part B Post-Construction Stormwater Management in New Development and Redevelopment 1. Is the municipality reviewing and approving major development residential projects in accordance with the Residential Site Improvement Standards (RSIS)? Yes 2. Did the municipality adopt a municipal stormwater management plan? Yes 3. Most recent date of adopted municipal stormwater management plan: 09/11/2006 4. Status of this plan (if not adopted): 5. Did the municipality adopt the municipal stormwater control ordinance provided by NJDEP without change? Yes 6. Most recent date the municipality adopted a municipal stormwater control ordinance: 09/11/2006 7. What is the current status of the ordinance? 8. Did the municipality submit the adopted municipal stormwater management plan to the appropriate county review agency for approval? Yes 9. Most recent date the adopted Municipal Stormwater Management Plan was submitted to the appropriate county review agency for approval: 09/11/2006 10. If yes, did the municipality send the adopted municipal stormwater control ordinance to the appropriate county review agency for approval? Yes 11. Most recent date the adopted Municipal Stormwater Control Ordinance was submitted to the appropriate county review agency for approval: 09/11/2006 12. Status of county review: Approved 13. Did the municipality adopt the review agency's required amendments and resubmit to the county review agency? 14. Is the Stormwater Control Ordinance in effect? Yes 15. Most recent effective date of Stormwater Control Ordinance: 09/11/2006 16. Ordinance Number(s): 0.09.06 17. What is the current status of the adopted plan and ordinance? 18. Are you reviewing projects as part of your site plan and sub-division approval process to ensure that they comply with your municipality's effective municipal stormwater control ordinance(s)? Yes 19. How many projects that were subject to either the municipal stormwater control ordinance or the stormwater provisions of RSIS did the municipality approve? 0 20. Does the municipal stormwater management plan contain a mitigation plan? Yes 21. Has the municipality granted any variances or exemptions from the design and performance standards for stormwater management measures set forth in the approved municipal stormwater management plan and stormwater control ordinance(s)? No 22. If yes, how many variances or exemptions from the design and performance standards has the municipality granted? 23. If granted any variances or exemptions, did you submit a written report to the county review agency describing the variance or exemption and the required mitigation? 24. Does the municipality's plan review evaluate storm drain inlet protection for solids and floatables in accordance with Attachment C of the permit? Yes 25. Does the municipality require plans for long-term operation and maintenance for stormwater BMPs? Yes 26. Are you ensuring that adequate long-term operation and maintenance of stormwater BMPs is being performed on property that you do not own or operate? Please keep an inventory of stormwater BMPs indicating type, function and location in a format provided by the Department onsite and available for inspection or upon request. 27. Briefly indicate how this is being accomplished (e.g., ordinance requiring operation and maintenance by private entity; operation and maintenance by you or other governmental entity): 28. Is the municipality's stormwater management plan re-examined at each re-examination of the master plan in accordance with N.J.A.C. 7:8-4? 29. Date re-examination report was last adopted: Yes Inspections by Township Engineer N/A - we did not re-examine our master plan this year Report Details - Part C Local Public Education Program and Outreach 1. Has the municipality developed a Local Public Education Program? Yes 2. Has the municipality conducted educational activities that total the minimum number of points required by the permit? Yes Storm Drain Inlet Labeling 1. Has the municipality established a storm drain inlet labeling program? Yes 2. Indicate the percentage labeled to date: 100% 3. Other Amount: 4. Is your municipality maintaining the labels (i.e. replacing and/or repainting)? Yes Community Wide Ordinances Have you adopted and are you enforcing a regulatory mechanism for: 1. Pet Waste Ordinance: 2. Date adopted: 3. Litter Ordinance/State Litter Statute: 4. Date adopted: 5. Improper Disposal of Waste Ordinance: 6. Date adopted: 7. Wildlife Feeding Ordinance: 8. Date adopted: 9. Containerized Yard Waste Ordinance / Yard Waste Collection Program Ordinance: 10. Date adopted: 11. Illicit Connection Ordinance: 12. Date adopted: 13. Refuse Container/Dumpster Ordinance: 14. Date adopted: 15. Private Storm Drain Inlet Retrofitting Ordinance: 16. Date adopted: 17. Status of these ordinances (if not adopted): 18. Method(s) of enforcement (e.g., summons, warnings, additional signs, etc.): 19. Are you distributing the Pet Waste Information Sheets with pet licenses? Yes 04/02/2007 Litter Ordinance 04/02/2007 Yes 04/02/2007 Yes 04/02/2007 Adopted Both 04/02/2007 Yes 04/02/2007 Yes 04/02/2007 Yes 03/01/2001 The Department of Code Enforcement Yes Report Details - Part D MS4 Outfall Pipe Mapping 1. Has the municipality completed the mapping of the MS4 outfall pipes? 2. Date completed: 3. Number of outfall pipes that you operate in the municipality: 4. How many MS4 outfall pipes are mapped? Illicit Connection Elimination Program Yes 04/01/2007 230 230 1. Does the municipality have an ongoing program to detect and eliminate illicit connections to municipally owned or operated outfall pipes? Yes 2. How many outfall pipes were inspected during the past calendar year? 184 3. Number of illicit connections detected during the past calendar year: 0 4. Number of illicit connections eliminated during the past calendar year: 0 Street Sweeping Program 1. In the past calendar year, were all required streets swept? Yes 2. What was the total number of miles swept? 305 List the amount of materials collected for each month in 2021. 3. Units: 4. January: 5. February: 6. March: 7. April: 8. May: 9. June: 10. July: 11. August: 12. September: 13. October: 14. November: 15. December: 16. Total (Note: 1.053 cubic yards = 1 ton): 17. Explain the reason if reporting zero (0) for a month above: Storm Drain Inlet Retrofitting Tons 0 0 10.39 0 0 56.1 22.36 27.4 8.97 24.44 3.06 0 152.72 Street sweeper does not operate in the winter months. We had manpower issues in April and May. 1. Has the municipality completed repaving, repairing, reconstruction, or alterations on any road surfaces in direct contact with municipally owned or operated storm drain inlets? Yes 2. Approximately what percentage of storm drains within the municipality currently meet the standard? 95 Stormwater Facility Maintenance Stormwater facilities include, but are not limited to, catch basins, extended detention basins, low flow bypasses, underground detention, dry wells, manufactured treatment devices, pervious paving buffers, infiltration basins/trenches, sand filters, constructed wetlands, wet ponds, bioretention, rooftop vegetated cover, vegetative filters, and stormwater conveyance systems. Stormwater facility inventories that indicate the type, function, and location of the facility must be kept onsite and available for inspection or upon request in a format provided by the Department. The format is available as SPPP Form 13 at: http://www.nj.gov/dep/dwq/pdf/Tier_A/A%20-%20pdf%206.pdf. 1. Have you developed a Stormwater Facility Maintenance Program? Yes Other Stormwater Facilities 1. Were all stormwater facilities that you operate inspected? Yes 2. Were any found to be in need of cleaning or repair in order to function properly? Yes 3. During the past calendar year, were any stormwater facilities (excluding catch basins) cleaned? Yes 4. Were repairs made? Yes 5. Describe repair(s) or if repairs have not yet been made, provide a schedule Replaced pipe, installed rip wrap, unclogged pipe, repaired head wall, for the repair(s): uncovered pipe Catch Basins 1. Total number of catch basins that the municipality operates: 2. Total number of catch basins inspected: 3. Total number of catch basins cleaned: 4. Amount of materials removed from catch basins, in tons, during the past calendar year: 5. Units: 1405 1099 94 3.8 Tons Report Details - Part E Outfall Pipe Stream Scouring Remediation For all outfall pipes undergoing remediation through a scour remediation program, attach additional page(s) as necessary indicating the location of the outfall pipe (including the alphanumeric identifier), the repair start date, and the repair completion date. 1. Has the municipality developed a prioritized list of outfall pipes requiring outfall pipe stream scouring remediation? Yes De-icing Material and Sand Storage 1. Does the municipality have a permanent structure for all de-icing material storage? 2. If sand is being stored outside, is it set back 50 feet from storm sewer inlets, ditches or other stormwater conveyance channels, and surface water bodies? Yes N/A - no sand stored outdoors Fueling Operations 1. Is the municipality implementing Best Management Practices for vehicle fueling and receiving of bulk fuel deliveries at maintenance yard operations in accordance with Attachment E of the permit? Yes Vehicle Maintenance 1. Is the municipality implementing Best Management Practices for vehicle maintenance and repair activities at maintenance yard operations in accordance with Attachment E of the permit? Yes Good Housekeeping Practices 1. Is the municipality implementing Good Housekeeping Practices for all materials or machinery listed in the Inventory Requirements for Municipal Maintenance Yard Operations (including maintenance activities and ancillary operations) in accordance with Attachment E of the permit? Yes Equipment and Vehicle Washing 1. Has the municipality implemented measures to properly handle the discharge of equipment and vehicle wash wastewater from municipal maintenance yard operations? 2. Please indicate which option you implemented to eliminate the unpermitted discharge: 3. Date the management measure was implemented: 4. What is the NJPDES permit number that authorizes the discharge of vehicle and equipment wash wastewater? 5. Is the municipality maintaining records of vehicle and equipment washing? Yes Ceased the discharge (no longer wash onsite) 04/01/2009 N/A - we do not wash our vehicles Annual Employee Training 1. Did the municipality conduct training for employees on stormwater related topics as required under the MS4 permit (e.g., police officers trained on ordinances)? 2. List date(s) of employee training: Yes 2/26/21, 7/1/21 Report Details - Part F Sharing of Responsibilities Does the municipality share services with another entity to satisfy a permit requirement? Yes Incidents of Non-compliance Based on the answers you provided above, the Department has identified the following possible permit compliance issues. Please complete the Incidents of Non-compliance section and identify steps being taken to correct these deficiencies. - Your municipality has not revised your Stormwater Pollution Prevention Plan to incorporate changes required by the renewal permit. 1. Did your municipality have any incidents of non-compliance? 2. Identify the steps being taken to remedy the noncompliance and to prevent such incidents from recurring. (If the text box is not large enough to complete this section, please provide your report as an attachment and upload it on the next screen. Please reference the attachment in the textbox.) Yes Our Township Engineers are in the process of reviewing and updating a plan. Certification Certifier: Certifier ID: Challenge/Response Question: Challenge/Response Answer: Certification PIN: Date/Time of Certification: Rob Ritterson RITTERSON What is your favorite sport? ****** ****** 05/09/2022 11:23 "I certify under penalty of law that this Annual Report and Certification and all attached documents were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate this information. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering this information, the information in this Annual Report and Certification and all attached documents is, to the best of my knowledge and belief, true, accurate and complete. "I certify that the municipality is in compliance with its stormwater program, Stormwater Pollution Prevention Plan (SPPP) and the NJPDES Tier A Municipal Stormwater General Permit No. NJG0152153 except for any incidents of non-compliance which are identified herein. For any incidents of non-compliance, the Annual Report identifies the steps being taken to remedy the non-compliance and to prevent such incidents from recurring. "I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for purposely, knowingly, recklessly, or negligently submitting false information." Please note, no changes will be allowed to be made to this report upon its certification. If you need to correct or modify the report after certification, please contact your case manager at (609) 633-7021 so they may enable that function. Rob Ritterson General 05/09/2022 Date Instructions for Saving and Submitting the 2021 MS4 Tier A Permit Annual Report - Supplemental Questionnaire 1. Once opened, please save the Questionnaire to your computer, using the "Save As" function. This can be done by going to FILE > then Save As... or Shift + Ctrl + S. Name the document Supplemental_Questionnaire_TOWN NAME 2. Complete the Questionnaire. 3. Once you have completed the Questionnaire, use the "Save" function to save your answers to the Questionnaire to your computer . This can be done by going to FILE > then Save or Ctrl + S. 4. The completed and saved Questionnaire must then be uploaded as an attachment, in Part 7, to your Annual Report before the Annual Report is submitted to the Department. 5. To access the Annual Report, open the link to "NJDEP Online Portal" at http://www.nj.gov/dep/dwq/tier_a.htm. In Part 7, you will be asked to complete information regarding the file(s) to be uploaded. Navigate to your saved Questionnaire and then hit the "Upload" button in the lower right section of Part 7. The Annual Report will indicate if the Questionnaire was successfully uploaded. Then click on the "Continue" button and proceed with finalizing your Annual Report. Your Annual Report will be considered incomplete if the Supplemental Questionnaire is not attached. If you experience any difficulty in this process, please contact your municipal case manager at 609-6337021. Please note that use of Adobe Acrobat Reader DC is recommended. This free software is available for download at http://get.adobe.com/reader/ . If you have an earlier version of Adobe Reader, please go to the Adobe website at http://tv.adobe.com/watch/acrobat-x-tips-tricks/quick-tip-how-to-save-formdata-in-adobe-reader/ for detailed instructions on how to save your completed Questionnaire. 2021 MS4 Tier A Permit Annual Report - Supplemental Questionnaire A. Municipal Information Municipality: Deptford General Information County: Gloucester Stormwater Coordinator: Rob Ritterson Phone: 856-628-0274 Email: rritterson@deptford-nj.org Public Involvement and Participation Provide a web address for each of the following: Current Stormwater Pollution Prevention Plan (SPPP): www.deptford-nj.org Municipal Stormwater Management Plan: www.deptford-nj.org Local Public Education and Outreach Report the number of points obtained in each public education and outreach category: General Public Outreach: 3 Watershed/Regional Collaboration: 0 Targeted Audiences Outreach: 0 Community Involvement Activities: 1 School/Youth Education and Activities: 2 Has the municipality advertised public education and outreach activities on the municipalities website?: Yes No Post Construction Stormwater Management Note: This portion of the annual report should be completed by a person knowledgeable in post-construction stormwater management project review and approvals. Name of person completing this section: Rob Ritterson Affiliation of person completing this section: Superintendent Please fill out the attached major development project list for all major developments approved in the last calendar year. Community Wide Ordinances Does the municipality maintain a database to track all instances of community wide ordinance violations?: Yes No Provide the web address for each ordinance and report the entity responsible for the enforcement of each ordinance as well as the number of warnings and violations issued for each in the past calendar year: Pet Waste Ordinance Entity: Wildlife Feeding Ordinance Entity: Litter Control Ordinance Entity: Improper Disposal of Waste Ordinance Entity: Warnings/Violations: N/A Warnings/Violations: N/A Warnings/Violations: N/A Warnings/Violations: N/A Containerized Yard Waste/Yard Waste Collection Program Ordinance Entity: Warnings/Violations: N/A Private Storm Drain Inlet Retrofitting Ordinance Entity: Warnings/Violations: N/A Illicit Connection Ordinance Entity: Warnings/Violations: N/A Stormwater Control Ordinance Entity: Warnings/Violations: N/A Municipal Maintenance Yard and Other Ancillary Operations Does the municipality maintain a list of all materials and machinery located at each municipal maintenance yard and ancillary operation which could be a source of pollutants in a stormwater discharge?: Yes No Has the municipality implemented Best Management Practices as described in Attachment E for all applicable activities at each municipal maintenance yard and ancillary operation owned or operated by the municipality?: Yes No Does the municipality maintain an inspection log detailing conditions requiring attention and remedial actions taken at municipal maintenance yards and other ancillary operations?: Yes No Does the municipality have an underground vehicle wash water storage tank? Yes No Employee Training Does the municipality maintain records of employee training including sign in sheets, dates of training, and training agendas?: Yes No Does the municipality maintain a list of the names and dates of the municipal board and governing body members that review and approve applications for development and redevelopment projects who have completed the "Asking the Right Questions in Stormwater Review" training tool?: Yes No Does the municipality maintain a list of the names and dates of individuals that review development and redevelopment projects for compliance with NJAC 7:8 on behalf of the municipality who have completed the Department approved stormwater management training once every 5 years?: Yes No Outfall Pipe Mapping Check the box(es) for the components included on the municipality's outfall pipe map in addition to MS4 outfalls and surface water bodies: Conveyances (Pipes,Swales, Ditches) Culverts Block and Lots Green Infrastructure Manufactured Treatment Devices Stormwater Management Basins Storm Drain Inlets Streets/Roadways Subsurface Infiltration/Detention Basins Has the municipality included the outfall pipe map in the SPPP?: Yes No Does the municipality update the outfall pipe map annually?: Yes No Does the municipality's map identify outfalls that do not discharge to surface waters?: Yes No Stream Scouring How many outfalls did the municipality inspect for stream scouring in the past calendar year?: 30 How many instances of stream scouring were found during those inspections?: 6 How many instances of stream scouring were remediated in the past calendar year?: 6 Stormwater Facilities Maintenance Does the municipality keep up to date stormwater facility maintenance logs and inspection records for stormwater facilities owned or operated by the municipality?: Yes No Bioretention Systems How does the muDnriyciWpaeliltlsy ensure adequate long-term cleaning, operation, and maintenance of stormwater facilities not ownGedraossr oSwpearleatsed by the municipality?: Code EnforcemMenatnufactured Treatment Devices (MTDs) Rooftop Vegetated Cover Vegetative Filters Retrofitted Storm Drain Inlets Does the municipality keep up to date stormwater facility maintenance logs and inspection records for stormwater facilities not owned or operated by the municipality?: Yes No Total Maximum Daily Load (TMDL) Has the municipality reviewed TMDL reports to identify those which are relevant to the municipality's water bodies?: Yes No How many TMDLs were found to be applicable to the municipality?: N/A How has the municipality used TMDL information to assist in the prioritization of stormwater facility maintenance?: N/A Has the municipality updated its SPPP to include TMDL information?: Yes No Has the municipality incorporated any additional or optional measures? If so, please elaborate: N/A Major Development Project List Provide the following information for each approved development or redevelopment project that is regulated by the Tier A MS4 NJPDES Permit, and not exempted under N.J.A.C. 7:8-1.6(b). Tier A Municipality: D__e_p_tf_o_r_d______________ NJPDES#: NJG_________________ PI ID#: ______________ Calendar Year: _2_0_2_2____ Project Name / Date Complete Application Received Raising canes Block(s) / Lot(s) 5G3 NJDEP Total Area Construction Land Use of Stormwater Permit Disturbance Permit Auth.# Required? (acres) (Y/N) Increase of Impervious > acre? (Y/N) Blk 200.01 Yes Lot 25.01 Y N 1.5 YN Variance or Exemption Granted As Per Part IV.B.4.h of the Tier A MS4 Permit YN Design Reviewer(s) CME Associates, Micheal Roberts PE A3 Industrial Blk 417.01 Yes Lot 10 Y N 8.79 YN YN CME Associates, Micheal Roberts PE Chick fil A Blk 5.01 Yes Lot 13.01 Y N 1.36 YN YN CME Associates, Micheal Roberts PE HHJ Petro Blk 387.01 Yes Lot 59 60 61 Y N 6.8 YN YN CME Associates, Micheal Roberts PE YN YN YN YN YN YN Major Development Project List Provide the following information for each approved development or redevelopment project that is regulated by the Tier A MS4 NJPDES Permit, and not exempted under N.J.A.C. 7:8-1.6(b). Tier A Municipality: _D_e__p_tf_o_r_d_____________ Project Name / Date Complete Application Received Block(s) / Lot(s) NJPDES#: NJG_________________ PI ID#: ______________ Calendar Year: ________ 5G3 NJDEP Total Area Construction Land Use of Stormwater Permit Disturbance Permit Auth.# Required? (acres) (Y/N) Increase of Impervious > acre? (Y/N) Variance or Exemption Granted As Per Part IV.B.4.h of the Tier A MS4 Permit Design Reviewer(s) YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN YN This Supplemental Questionnaire must be attached to your Annual Report to be considered complete. If you experience any difficulty in this process, please contact your municipal case manager at 609-633-7021. 1. Once you have completed the Questionnaire, use the "Save" function to save your answers to the Questionnaire to your computer. This can be done by going to FILE > then Save or Ctrl + S. 2. The completed and saved Questionnaire must then be uploaded as an attachment, in Part 7, to your Annual Report before the Annual Report is submitted to the Department. 3. To access the Annual Report, open the link to "NJDEP Online Portal" at http://www.nj.gov/dep/dwq/tier_a.htm. In Part 7, you will be asked to complete information regarding the file(s) to be uploaded. Navigate to your saved Questionnaire and then hit the "Upload" button in the lower right section of Part 7. The Annual Report will indicate if the Questionnaire was successfully uploaded. Then click on the "Continue" button and proceed with finalizing your Annual Report.