SPARTA TOWNSHIP MUNICIPAL STORMWATER MANAGEMENT PLAN. April 2005

Transcription

1 SPARTA TOWNSHIP MUNICIPAL STORMWATER MANAGEMENT PLAN Sparta Township, Sussex County, New Jersey April 2005 David Troast, P.P., A.I.C.P., C.L.A Charles P. Ryan, P.E., Sparta Township Planner Sparta Township Engineer LI , AS NJ License # Prepared by: Sparta Township Engineering, Planning, Public Works & Health Departments Staff

2 Table of Contents Acknowledgements... 3 Introduction Goals Stormwater Discussion Background Design and Performance Standards Plan Consistency Nonstructural Stormwater Management Strategies Land Use/Build-Out Analysis Mitigation Plans Tables: Table 1 Sublist 5- Expanded Summary Table Table 2 Summary of Applicable Ordinances List of Figures: Figure C-1: Groundwater Recharge in the Hydrologic Cycle....Page 5 Figure C-2: Sublist 5 Waterbodies....Page 8 Figure C-3: Township and Its Waterways... Appendix A Figure C-4: Township Boundary on USGS Quadrangles... Appendix A Figure C-5: Groundwater Recharge Areas in the Township... Appendix A Figure C-6: Wellhead Protection Areas in the Township... Appendix A Figure C-7: Township s Existing Land Use... Appendix A Figure C-8: Hydrologic Units (HUC14s) Within the Township... Appendix A Figure C-9: Zoning Map Sparta Township... Appendix A Figure C-10: Wetlands and Water Land Uses within the Township Constrained Land Appendix A - 2 -

3 Acknowledgements SPARTA TOWNSHIP COUNCIL MEMBERS Mayor Scott K. Seelagy Deputy Mayor Ailish C. Hambel Councilman James L. Henderson Councilman Douglas S. Martin Councilman Wayne A. Ring PLANNING BOARD MEMBERS William Hookway, III - Chairman Ernest Hofer - Vice Chairman Scott Seelagy - Mayor Douglas Martin - Councilman William Kulsar - Member Kenneth Laury - Member Laura Sachs - Member Robert Tessier - Member Ted Gall - Member William Battaglia - 1st Alternate Steve Keene - 2nd Alternate Thomas Collins, Esq. - Board Attorney David Simmons, P.E. - Board Engineer David Troast - Director of Planning Maureen McConville - Board Secretary STORMWATER POLLUTION PREVENTION TEAM MEMBERS Stormwater Program Coordinator(s): Thomas Spring Public Works Manager Charles P. Ryan, P.E., Township Engineer Post-Construction Stormwater Management Coordinator: Thomas Spring, Public Works Manager Eric Powell, P.E. Local Public Education Coordinator: Eric Powell, P.E. Employee Training Coordinator: Thomas Spring, Public Works Manager Public Notice Coordinator: Miriam Tower, Township Clerk Ordinance Coordinator: David Troast, P.P., Township Planner Public Works Coordinator: Thomas Spring, Public Works Manager Geographical Information Systems: David Manhardt, GIS Coordinator Health Department Liaison: Ralph D Aries, Health Officer - 3 -

4 Introduction Goals This Municipal Stormwater Management Plan (MSWMP) documents the strategy for Sparta Township to address stormwater-related impacts. The creation of this plan is required by N.J.A.C. 7:14A-25 Municipal Stormwater Regulations. This plan contains all of the required elements described in N.J.A.C. 7:8 Stormwater Management Rules. The plan addresses groundwater recharge, stormwater quantity, and stormwater quality impacts by incorporating stormwater design and performance standards for new major development, defined as projects that disturb one or more acre of land. These standards are intended to minimize the adverse impact of stormwater runoff on water quality and water quantity and the loss of groundwater recharge that provides base flow in receiving water bodies. The plan describes long-term operation and maintenance measures for existing and future stormwater facilities. The plan also addresses the review and update of existing ordinances, the Township Master Plan, and other planning documents to allow for project designs that include low impact development techniques. The final component of this plan is a mitigation strategy for when a variance or exemption of the design and performance standards is sought. As part of the mitigation section of the stormwater plan, specific stormwater management measures are identified to lessen the impact of existing development. This plan shall be amended in the future to include a build-out analysis based upon existing zoning and land available for development. The goals of this MSWMP are to: reduce flood damage, including damage to life and property; minimize, to the extent practical, any increase in stormwater runoff from any new development; reduce soil erosion from any development or construction project; assure the adequacy of existing and proposed culverts and bridges, and other instream structures; maintain groundwater recharge; prevent, to the greatest extent feasible, an increase in non-point pollution; maintain the integrity of stream channels for their biological functions, as well as for drainage; minimize pollutants in stormwater runoff from new and existing development to restore, enhance, and maintain the chemical, physical, and biological integrity of the waters of the state, to protect public health, to safeguard fish and aquatic life and scenic and ecological values, and to enhance the domestic, municipal, recreational, industrial, and other uses of water; and protect public safety through the proper design and operation of stormwater basins. To achieve these goals, this plan outlines specific stormwater design and performance standards for new development. Additionally, the plan proposes stormwater management controls to address impacts from existing development. Preventative and corrective maintenance strategies are included in the plan to ensure long-term effectiveness of - 4 -

5 stormwater management facilities. The plan also outlines safety standards for stormwater infrastructure to be implemented to protect public safety. Stormwater Discussion Land development can dramatically alter the hydrologic cycle (See Figure C-1) of a site and, ultimately, an entire watershed. Prior to development, native vegetation can either directly intercept precipitation or draw that portion that has infiltrated into the ground and return it to the atmosphere through evapotranspiration. Development can remove this beneficial vegetation and replace it with lawn or impervious cover, reducing the site s evapotranspiration and infiltration rates. Clearing and grading a site can remove depressions that store rainfall. Construction activities may also compact the soil and diminish its infiltration ability, resulting in increased volumes and rates of stormwater runoff from the site. Impervious areas that are connected to each other through gutters, channels, and storm sewers can transport runoff more quickly than natural areas. This shortening of the transport or travel time quickens the rainfall-runoff response of the drainage area, causing flow in downstream waterways to peak faster and higher than natural conditions. These increases can create new and aggravate existing downstream flooding and erosion problems and increase the quantity of sediment in the channel. Filtration of runoff and removal of pollutants by surface and channel vegetation is eliminated by storm sewers that discharge runoff directly into a stream. Increases in impervious area can also decrease opportunities for infiltration which, in turn, reduces stream base flow and groundwater recharge. Reduced base flows and increased peak flows produce greater fluctuations between normal and storm flow rates, which can increase channel erosion. Reduced base flows can also negatively impact the hydrology of adjacent wetlands and the health of biological communities that depend on base flows. Finally, erosion and sedimentation can destroy habitat from which some species cannot adapt. Figure C-1: Groundwater Recharge in the Hydrologic Cycle Source: New Jersey Geological Survey Report GSR

6 In addition to increases in runoff peaks, volumes, and loss of groundwater recharge, land development often results in the accumulation of pollutants on the land surface that runoff can mobilize and transport to streams. New impervious surfaces and cleared areas created by development can accumulate a variety of pollutants from the atmosphere, fertilizers, animal wastes, and leakage and wear from vehicles. Pollutants can include metals, suspended solids, hydrocarbons, pathogens, and nutrients. In addition to increased pollutant loading, land development can adversely affect water quality and stream biota in more subtle ways. For example, stormwater falling on impervious surfaces or stored in detention or retention basins can become heated and raise the temperature of the downstream waterway, adversely affecting cold water fish species such as trout. Development can remove trees along stream banks that normally provide shading, stabilization, and leaf litter that falls into streams and becomes food for the aquatic community. Background Sparta Township is a rural community of thirty-nine (39) square miles with a current population of 19,000 and 21,500 at build out. The State Designated Sparta Town Center is the cornerstone of the Township Land Use Plan. The existing development nodes at Woodruffs Gap, Blue Heron and Monroe are historic crossroads providing additional opportunities for specific planned smart growth opportunities to meet the goal of a fiscally balanced plan. The Environs area outside of the center and nodes is characterized by steep and rolling hills, valleys and spectacular lakes interspersed with single-family homes. The Township is in three (3) major watershed management areas including the Upper Delaware, Wallkill and Passaic. There are nine (9) lake communities with Lake Mohawk being the largest. The Master Plan and Ordinances promote the conservation of the rural character and the environmentally sensitive lands through innovative planning and zoning techniques such as residential open space clustering and land acquisition. In addition to water quality issues, there are isolated areas throughout the Township that experience minor to moderate flooding conditions. Drainage deficiencies have been identified in a report entitled Road & Drainage Master Plan Sparta Township April 1982, prepared by Harold E. Pellow & Associates, Inc. Annually road and drainage conditions are assessed and improvements prioritized by the Township s Public Works and Engineering Staff. Systematically, drainage improvements have been and will continue to be made, funded through local budget and grants such as the New Jersey Department of Transportation (NJDOT) Municipal Aid Trust Fund. One category of improvements will focus in areas of existing development that are void of non-structural and structural stormwater control measures. Efforts will concentrate on stormwater discharges in close proximity to surface waters. Sparta Township also has partnered with Sussex County and private entities, such as the Lake Mohawk Country Club Association to implement stormwater quantity and quality control improvements. Such endeavors will continue

7 One major project is the continuing restoration of the Sparta Glen Park and Sparta Glen Brook, tributary to the Wallkill River. In August, 2000 a 14-inch rainfall event, corresponding to a 1000 year storm event concentrated its force over the geographical centroid of Sparta, resulting in extensive flooding, mud slides and property damage. The stream bed of the Sparta Glen Brook was scoured out in excess of 20-feet, and County Route 620 (Glen Road) collapsed into the Glen Park. Debris cleanup, partial stream bank restoration, and partial re-vegetation has been made. Funding through Natural Resource Conservation Service (Division of United Stated Department of Agriculture); United States Fish & Wildlife Service; and New Jersey State Non-Point Source Pollution (319h) grant allowed this partial restoration to proceed. Although funding has been received, it was not to the levels expected or needed. Additional stream embankment restoration, riparian buffer installation, soil stabilization, and overall re-vegetation are items still needed to be completed. The Sparta Glen Brook, a C-1 designated stream, is continuously impacted by sediment during storm events. Restoration efforts are considered high priority and will continue to the level, dictated by funding. Over 90% of Sparta s population is provided potable water and fire protection from 44 community water supply wells, owned and operated by the Sparta Township Water Utility. The balance of Sparta is serviced by individual on-site wells. It is imperative that adequate groundwater recharge, both quantitatively and qualitatively be maintained. Reference is made to Figure C-4, a map depicting groundwater recharge areas; and to Figure C-5, a map depicting wellhead protection areas of the public community supply wells. Properties within the Tier 1 (2-year time of travel) wellhead protection zone shall be identified with the following action tasks proposed: a. Establish a septic management district with routine septic tank pumping requirements. b. Prohibit specific processes or materials within this zone and implement through the Planning Board (Land Management Code, Specifically Discouraged Uses). c. Implement public education program. Beginning in 2002 New Jersey developed its first Integrated Water Quality Monitoring and Assessment Report. This report combined previous USEPA mandated reports, Water Quality Inventory Report (305b) and List of Water Quality Limited Waters (303d). The 305b report contained assessments of water quality and descriptions of water resources management programs. The 303d List (also termed the Impaired Waterbodies List) identified impaired waterbodies, those waters for which technologybased pollution controls were not stringent enough to achieve the state s surface water quality standards. The Integrated Report groups all assessed waterbodies into sublists based on different criteria. Sublist 5 is the list of impaired waterbodies that require Total Maximum Daily Land (TMDLs), unless additional data and information indicating this classification was inappropriate becomes available by the next NJDEP Integrated Report listing cycle. Of the waters on Sublist 5 there are three waterbodies within Sparta Township: Lake Mohawk, a portion of the stream between Fox Hollow Lake and the Paulins Kill, and, the Wallkill River. Refer to Sublist 5 Expanded Summary Table presented on the following page

8 The NJDEP is required to develop a Total Maximum Daily Load (TMDL) for these pollutants for each waterway. A TMDL is the amount of a pollutant that can be accepted by a waterbody without causing an exceedance of water quality standards or interfering with the ability to use a waterbody for one or more of its designated uses. The allowable load is allocated to the various sources of the pollutant, such as stormwater and wastewater discharges, which require an NJPDES permit to discharge, and nonpoint source, which includes stormwater runoff from agricultural areas and residential areas, along with a margin of safety. Provisions may also be made for future sources in the form of reserve capacity. An implementation plan is developed to identify how the various sources will be reduced to the designated allocations. Implementation strategies may include improved wastewater treatment operations, adoption of ordinances, reforestation of stream corridors, retrofitting stormwater systems, and other BMPs. Sparta Township Sublist 5: Waterbodies - 8 -

9 Lake Mohawk - Private Recreational Lake with 12 Beaches Sublist 5 Expanded Summary Table Waterbody Impairment Priority Monitoring By Action Fecal Coliform High Sparta Township (FC) (generally Health Dept. of one-day duration at one or several beaches) Stream from Fox Hollow Lake to the Paulins Kill (WMA 01) Wallkill River - river length within Sparta Township is approximately 4.5 miles (from headwaters to Sparta Township / Ogdensburg Borough boundary); River has two C-I Tributaries within Sparta Township Wallkill River at Sparta Wallkill River at Sparta Wallkill River at Sparta Beach Closure if FC Count is above Water Std. Various FC reduction actions by Lake Mohawk are in place (septic management, geese control, pet waste ordinances, and stormwater management BMPs) Fecal Coliform High NJDEP Consider application of BMPs Temperature Medium NJDEP Former EWQ Site - Further monitoring by WRWMG Task B at Site A Fecal Coliform High NJDEP Former EWQ Site Benthic Macro- Invertebrate Sparta Township was delisted for Total Phosphorus in 2004 through the efforts of Sparta Township and the Wallkill River Watershed Management Group (WRWMG) (WMA02) Low Further monitoring by the WRWMG is planned in mid NJDEP AMNET Site AN0297 Plantings at Station Park for shade improvement awaiting grant dollars for implementation of project) Current Glen Brook restoration work will also provide shade improvement. See FC Action below TMDL has been adopted WRWMG plans to address FC, Temperature, and Macro -invertebrate impairments as part of a restoration project to be covered by a 2007 SFY 319(h) grant project Pet waste ordinances and enforcement actions by Sparta Township will be pursued in addressing FC impairment Continue Monitoring

10 Design and Performance Standards The Township will adopt 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. The design and performance standards 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. The ordinances will be submitted to the county for review and approval. During construction, Township inspectors will observe the construction of the project to ensure that the stormwater management measures are constructed and function as designed. Plan Consistency The Township is not within a Regional Stormwater Management Planning Area, and therefore this plan does not need to be consistent with any regional stormwater management plans (RSWMPs. If any RSWMPs or additional TMDLs are developed in the future, this Municipal Stormwater Management Plan will be updated to be consistent. The Municipal Stormwater Management Plan is consistent with the Residential Site Improvement Standards (RSIS) at N.J.A.C. 5:21. The municipality 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. The Township s Stormwater Management Ordinance requires all new development and redevelopment plans to comply with New Jersey s Soil Erosion and Sediment Control Standards. During construction, Township inspectors will observe on-site soil erosion and sediment control measures and report any inconsistencies to the local Soil Conservation District

11 Nonstructural Stormwater Management Strategies The Township has reviewed the master plan and ordinances, to determine how best to incorporate the Nine Nonstructural Stormwater Management Strategies. The nine strategies are as follows: 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. Below is a summary table of how the nine nonstructural strategies will be achieved through existing Township ordinances and ordinances to be amended. TABLE 2: Summary of Applicable Ordinances Applicable Ordinances Nine (9) Non-Structural Strategies , 4.14, 4.15 "Cluster Option" x x x x x x e1 e2, 4.28 e1 e2 "Town Center Zoned" x x x x x x r Setback from Lakes and Waterways x x x x x x x o: Landscaping x t: "Tree Preservation" x x x x x x , 4.14, 4.15: "Contiguous non-constrained" x x x x x : "Industrial Standards" x h 1e: "Parking Standards" * x 25-1: "Lawn Fertilizer Control * x : "Septic Management" * x f: "Storm Drainage" * x s: "Land Disturbance - Construction Permit" * x x x x x x e 3: "Sidewalks" * x : "Discouraged Uses" * x X- strategy achieved by ordinance * - ordinance to be amended

12 The Township has provided a list of the sections in the land use and zoning ordinances that already incorporate one or more of the nine nonstructural stormwater management strategies. The Township has also provided a list of sections in the land use and zoning ordinances that are to be modified to incorporate nonstructural stormwater management strategies. The ordinances found to already incorporate nonstructural strategies are as follows. Applicable Sparta Ordinances: , 4.14, 4.15: Environmental Constraints Cluster Option: RR, RC1, RC2: These ordinances allow for the clustering of new developments and the dedication of open space. This option is an excellent tool for reducing impervious surfaces including roads and driveways. The option allows for smaller lots with smaller front and side yard setbacks than traditional development options. It also minimizes the disturbance of large tracts of land, which is a key nonstructural stormwater management strategy. Applicable Nonstructural Strategies: 1,2,3,4,5, , 4.28: Required Standards for TCLC and TCPB Developments. e1: Impervious Coverage e2: Impervious Coverage Incentive for Public Dedication of Open Space The above ordinances place impervious coverage limits on properties within the TCLC and TCPB zones and provides incentives to cluster commercial development consistent with the Master Plan. The ordinances also provide the developer the option of increasing impervious coverage by dedicating open space to the township. Applicable Nonstructural Strategies: 1,2,3,4,5, r: Setbacks of Structures and Improvements from Lakes and Waterways: This ordinance restricts the building of structures or improvements within a preset buffer distance from any lake, pond, river, stream or waterway. Applicable Nonstructural Strategies: 1,2,3,4,5,6, s: Land Disturbance Construction Permit: Ordinance requires that no person shall commence any construction, grading, filling, or other form of land disturbance, with out a permit. Applicable Nonstructural Strategies: 1,2,3,4,5, t: Tree Preservation: This ordinance to regulate and control indiscriminate and excessive removal and cutting of trees within the Township, preserve the maximum possible number of quality trees in the course of development of a site or lot, seek to protect larger specimen trees and encourage innovative design and grading to promote the preservation of existing trees. Applicable Nonstructural Strategies: 1,2,3,4,5, , 4.14, 4.15: Contiguous non-constrained land areas for newly subdivided lots, is a technique to manage development on steep sloped areas, wetland buffers and poor soils. Applicable Nonstructural Strategies: 1,3,4,5,6-12 -

13 18-5.5: Industrial Standards: Restricts the use of materials listed on N.J.A.C. 7:26-8, 13 and 14. Applicable Nonstructural Strategies: 9 These are the ordinances identified for revision. Once the ordinance texts are completed, they will be submitted to the county review agency for review and approval within [24 months of the effective date of the Stormwater Management Rules]. A copy will be sent to the Department of Environmental Protection at the time of submission. Recommended Amendments: h 1b: Parking Standards: Current standards require parking spaces to be a minimum of nine by twenty (9x20) feet. This is proposed to be amended to provide for parking spaces to be a minimum of nine by eighteen (9x18) feet, with a two-foot overhang over a vegetated buffer. Applicable Nonstructural Strategies: : Lawn fertilizer Control within Lake Mohawk Country Club Properties: This ordinance restricts the use of liquid or granular fertilizer, which contains high phosphorus. Currently, the ordinance applies to only properties within the Lake Mohawk Country Club. The Township will extend the area to include the entire township. Applicable Nonstructural Strategies: : Requirement for Permit to Operate an Individual Subsurface Sewage Disposal System: Part of the requirements for permitting is proof that the septic system has been pumped by a registered NJDEP solid waste hauler. Currently this ordinance only applies to the Lake Mohawk Septic Management District. The Township will look to create additional Septic Management Districts. The criteria for determining these new districts, will be proximity to lakes and ponds, proximity to Category 1 streams, and location within Tier 1 well-head protection areas. Also to be taken into consideration, are areas within the same drainage basin as streams with existing TMDL s for fecal coliform. Applicable Nonstructural Strategies: f: Storm Drainage: The Township will investigate amending to allow for vegetated swales, and other nonstructural stormwater management techniques. Applicable Nonstructural Strategies: e: Economic Development District: Specifically Discouraged Uses: Prohibits uses which directly or indirectly utilize materials listed in NJAC 7: This ordinance should be modified to include all properties in every zone within Tier 1 Well Head Protection Areas. Thus, aiding in the elimination of potential contamination of Sparta Township Public water supply. Applicable Nonstructural Strategies: o: Landscaping: Amend to encourage the use of indigenous native species. Applicable Nonstructural Strategies:

14 18-5.3e3: Sidewalks: This ordinance provides a four-foot buffer between the street and the sidewalk. This ordinance shall be modified to encourage the use of a vegetated or pervious buffer. Applicable Nonstructural Strategies: 2 Land Use/Build-Out Analysis A detailed land use analysis for the Township will be conducted. Figure C-6 illustrates the existing land use in the Township based on 1995/97 GIS information from NJDEP. Figure C-7 illustrates the HUC14s within the Township. The Township zoning map is shown in Figure C-8. Figure C-9 illustrates the constrained lands within the Township. A buildout analysis shall include calculations for impervious cover, pollutant loading coefficients by land cover, and pollutant loads at full buildout Mitigation Plans This mitigation plan is provided for a proposed development that is granted a variance or exemption from the stormwater management design and performance standards. Mitigation Project Criteria The mitigation project shall be implemented preferably in the same drainage area as the proposed development. The project must provide additional groundwater recharge benefits, or protection from stormwater runoff quality and quantity from previously developed property that does not currently meet the design and performance standards outlined in the Municipal Stormwater Management Plan. The developer must ensure the long-term maintenance of the project, including the maintenance requirements under Chapters 8 and 9 of the NJDEP Stormwater BMP Manual. The mitigation project may also provide mitigation that is not equivalent to the impacts for which the variance or exemption is sought, but that addresses the same issue. For example, if a variance is given because the 80 percent TSS requirement is not met, the selected project may address water quality impacts due to a fecal impairment. The developer may provide funding or partial funding to the municipality for an environmental enhancement project that has been identified in the Municipal Stormwater Management Plan. The funding must be equal to or greater than the cost to implement the mitigation outlined above, including costs associated with purchasing the property or easement for mitigation, and the cost associated with the long-term maintenance requirements of the mitigation measure. The applicant can select one of the following projects listed to compensate for the deficit from the performance standards resulting from the proposed project. More detailed

15 information on the projects can be obtained from the Township Engineer. Listed below are specific projects that can be used to address the mitigation requirement. 1. Sparta Glen Park / Sparta Glen Brook The purpose of this project is to restore the stream and the stream environs to significantly reduce non-point source pollution. The limit of the project is approximately 5,700 feet length of the Sparta Glen Brook through the Sparta Glen Park block 7, Lot 57. The major components of the project consist of re-channelization of the stream, reestablishment of in stream habitat environs, re-stabilization of stream bank and revegetation of the riparian buffer zone and upland forest transition area. 2. Station Park / Wallkill River The major components of the project consist of re-channelization of the stream, reestablishment of in stream habitat environs, re-stabilization of stream bank and revegetation of the riparian buffer zone. 3. Wallkill River from confluence with Sparta Glen Brook downstream to Station Road County Bridge Q-08: The major components of the project consist of rechannelization of the stream, re-establishment of in stream habitat environs, restabilization of stream bank and re-vegetation of the riparian buffer zone. 4. Drainage improvements, including solids removal at Balsam Parkway, Birch Cherry Tree Lane. 5. Price s Lane landfill closure soil stabilization installation and maintenance. 6. Existing stormwater discharges within close proximity (100-feet) of surface waters shall be equipped with structural stormwater management measures as defined in Chapter 9, N.J. Stormwater Best Management Practices Manual. Such techniques are applicable in existing developed areas, where low impact development techniques are not easily implemented. a. Rivers / Streams Priority shall be given to C-1 designated streams and those with a defined TMDL. (Reference is made to Figure C-2, Township & Its waterways) b. Lakes / Ponds Lakes and ponds are divided into two categories as follows: Moderate to Heavily Developed at Present Seneca Lake Lake Mohawk Lake Grinnell Beiser Pond Sparta Lake Upper Lake Mohawk Fox Hollow Lake Fox Trail Lake Lake Saginaw Arapaho Lake Sunset Lake Madonna Lake

16 Low Development at Present Rock Island Lake Morris Lake Glen Lake Mud Pond Ryker Lake Green Ridge Lake White Lake Hawthorne Lake Blue Heron Lake Priority shall be given to more heavily developed areas where stormwater controls would result in the greatest benefit. An applicant may propose a specific mitigation project. All projects shall be prioritized and approved by the Township Engineer, Director of Planning, and the Sparta Township Planning Board and shall be at the sole discretion of Sparta Township

17 SPARTA TOWNSHIP MUNICIPAL STORMWATER MANAGEMENT PLAN Maps are not included in online plan due to file size limitations. Maps are available at the Township Engineering Department (973)