Source: https://ecode360.com/16156195
Timestamp: 2020-01-18 15:15:57
Document Index: 206765919

Matched Legal Cases: ['§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 283', '§ 1']

Borough of Lindenwold, NJ Stormwater Management
§ 283-1 Scope and purpose.
§ 283-3 General standards.
§ 283-4 Stormwater management requirements for major development.
§ 283-5 Calculation of stormwater runoff and groundwater recharge.
§ 283-6 Standards for structural stormwater management measures.
§ 283-7 Sources for technical guidance.
§ 283-8 Mitigation plan.
§ 283-9 Safety standards for stormwater management basins.
§ 283-10 Requirements for site development stormwater plan.
§ 283-11 Maintenance and repair.
§ 283-12 Impervious coverage.
§ 283-13 Violations and penalties.
§ 283-14 When effective.
Chapter 283 Stormwater Management
[HISTORY: Adopted by the Mayor and Council of the Borough of Lindenwold 9-28-2005 by Ord. No. 1172. Amendments noted where applicable.]
Purpose. It is the purpose of this chapter to establish minimum stormwater management requirements and controls for major development, as defined in § 283-2.
Aspects of residential major developments that are not preempted by the Residential Site Improvement Standards at N.J.A.C. 5:21-1.1 et seq.
This chapter shall also be applicable to all major developments undertaken by Lindenwold Borough.
Compatibility with other permit and ordinance requirements. Development approvals issued for subdivisions and site plans pursuant to this chapter are to be considered an integral part of development approvals under the subdivision and site plan review process and do not relieve the applicant of the responsibility to secure required permits or approvals for activities regulated by any other applicable code, rule, act or ordinance. In their interpretation and application, the provisions of this chapter shall be held to be the minimum requirements for the promotion of the public health, safety and general welfare. This chapter is not intended to interfere with, abrogate or annul any other ordinance, rule or regulation, statute or other provision of law, except that, where any provision of this chapter imposes restrictions different from those imposed by any other ordinance, rule or regulation, or other provision of law, the more restrictive provisions or higher standards shall control.
The division of a parcel of land into two or more parcels; the construction, reconstruction, conversion, structural alteration, relocation or enlargement of any building or structure; any mining excavation or landfill; and any use or change in the use of any building or other structure or land or extension of use of land by any person, for which permission is required under the Municipal Land Use Law, N.J.S.A. 40:55D-1 et seq. In the case of development of agricultural lands, "development" means any activity that requires a state permit, any activity reviewed by the County Agricultural Board (CAB) and the State Agricultural Development Committee (SADC), and municipal review of any activity not exempted by the Right to Farm Act, N.J.S.A. 4:1C-1 et seq.
An area or feature which is of significant environmental value, including but not limited to stream corridors; natural heritage priority sites; habitat of endangered or threatened species; large areas of contiguous open space or upland forest; steep slopes; and wellhead protection and groundwater recharge areas. Habitats of endangered or threatened species are identified using the Department's Landscape Project, as approved by the Department's Endangered and Nongame Species Program.
The Borough of Lindenwold, Camden County, New Jersey.[1]
Any individual, corporation, company, partnership, firm, association, Lindenwold Borough, or political subdivision of this state subject to municipal jurisdiction pursuant to the Municipal Land Use Law, N.J.S.A. 40:55D-1 et seq.
Stormwater management measures for major development shall be developed to meet the erosion control, groundwater recharge, stormwater runoff quantity, and stormwater runoff quality standards in § 283-4. To the maximum extent practicable, these standards shall be met by incorporating nonstructural stormwater management strategies into the design. If these strategies alone are not sufficient to meet these standards, structural stormwater management measures necessary to meet these standards shall be incorporated into the design.
The development shall incorporate a maintenance plan for the stormwater management measures incorporated into the design of a major development in accordance with § 283-11.
A waiver from strict compliance from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements of Subsections F and G of this section may be obtained for the enlargement of an existing public roadway or railroad or the construction or enlargement of a public pedestrian access, provided that the following conditions are met:
To the maximum extent practicable, the standards in Subsections F and G of this section shall be met by incorporating nonstructural stormwater management strategies set forth at this Subsection E into the design. The applicant shall identify the nonstructural measures incorporated into the design of the project. If the applicant contends that it is not feasible for engineering, environmental, or safety reasons to incorporate any nonstructural stormwater management measures identified in Subsection E(2) below into the design of a particular project, the applicant shall identify the strategy considered and provide a basis for the contention.
Where flows from the water quality design storm as specified in Subsection G(1) of this section are conveyed through any device (e.g., end-of-pipe netting facility, manufactured treatment device, or a catch basin hood) that is designed, at a minimum, to prevent delivery of all solid and floatable materials that could not pass through one of the following:
Where flows are conveyed through a trash rack that has parallel bars with one-inch spacing between the bars to the elevation of the water quality design storm as specified in Subsection G(1); or
Any land area used as a nonstructural stormwater management measure to meet the performance standards in Subsections F and G shall be dedicated to a government agency, subjected to a conservation restriction filed with the appropriate County Clerk's office or subjected to an approved equivalent restriction that ensures that measure or an equivalent stormwater management measure approved by the reviewing agency is maintained in perpetuity.
Guidance for nonstructural stormwater management strategies is available in the New Jersey Stormwater Best Management Practices Manual. The BMP Manual may be obtained from the address identified in § 283-7 or found on the Department's website at www.njstormwater.org.
The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 283-5, either:
Industrial stormwater exposed to source material. "Source material" means any material(s) or machinery located at an industrial facility that is directly or indirectly related to process, manufacturing or other industrial activities, which could be a source of pollutants in any industrial stormwater discharge to groundwater. Source materials include, but are not limited to, raw materials; intermediate products; final products; waste materials; by-products; industrial machinery and fuels; and lubricants, solvents and detergents that are related to process, manufacturing, or other industrial activities that are exposed to stormwater.
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 283-5, complete one of the following:
Demonstrate through hydrologic and hydraulic analysis that, for stormwater leaving the site, post-construction runoff hydrographs for the two-, ten- and one-hundred-year storm events do not exceed at any point in time the preconstruction runoff hydrographs for the same storm events;
Any application for a new agricultural development that meets the definition of major development at § 283-2 shall be submitted to the appropriate soil conservation district for review and approval in accordance with the requirements of this section and any applicable soil conservation district guidelines for stormwater runoff quantity and erosion control. For the purposes of this section, "agricultural development" means land uses normally associated with the production of food, fiber and livestock for sale. Such uses do not include the development of land for the processing or sale of food and the manufacturing of agriculturally related products.
For purposes of TSS reduction calculations, Table 2 below presents the presumed removal rates for certain BMPs designed in accordance with the New Jersey Stormwater Best Management Practices Manual. The BMP Manual may be obtained from the address identified in § 283-7 or found on the Department's website at www.njstormwater.org. The BMP Manual and other sources of technical guidance are listed in § 283-7. TSS reduction shall be calculated based on the removal rates for the BMPs in Table 2 below. Alternative removal rates and methods of calculating removal rates may be used if the design engineer provides documentation demonstrating the capability of these alternative rates and methods to the review agency. A copy of any approved alternative rate or method of calculating the removal rate shall be provided to the Department at the following address: Division of Watershed Management, New Jersey Department of Environmental Protection, P.O. Box 418, Trenton, New Jersey 08625-0418.
See § 283-6C
Additional information and examples are contained in the New Jersey Stormwater Best Management Practices Manual, which may be obtained from the address identified in § 283-7.
Encroachment within the designated special water resource protection area under Subsection G(8)(a)[1] above shall only be allowed where previous development or disturbance has occurred (for example, active agricultural use, parking area or maintained lawn area). The encroachment shall only be allowed where an applicant demonstrates that the functional value and overall condition of the special water resource protection area will be maintained to the maximum extent practicable. In no case shall the remaining special water resource protection area be reduced to less than 150 feet as measured perpendicular to the top of bank of the waterway or center line of the waterway where the bank is undefined. All encroachments proposed under this subsection shall be subject to review and approval by the Department.
For the purpose of calculating runoff coefficients and groundwater recharge, there is a presumption that the preconstruction condition of a site or portion thereof is a wooded land use with good hydrologic condition. The term "runoff coefficient" applies to both the NRCS methodology at Subsection A(1)(a) of this section and the Rational and Modified Rational Methods at Subsection A(1)(b). A runoff coefficient or a groundwater recharge land cover for an existing condition may be used on all or a portion of the site if the design engineer verifies that the hydrologic condition has existed on the site or portion of the site for at least five years without interruption prior to the time of application. If more than one land cover has existed on the site during the five years immediately prior to the time of application, the land cover with the lowest runoff potential shall be used for the computations. In addition, there is the presumption that the site is in good hydrologic condition (if the land use type is pasture, lawn or park), with good cover (if the land use type is woods), or with good hydrologic condition and conservation treatment (if the land use type is cultivation).
The New Jersey Geological Survey Report GSR-32, A Method for Evaluating Ground-Water Recharge Areas in New Jersey, incorporated herein by reference, as amended and supplemented. Information regarding the methodology is available from the New Jersey Stormwater Best Management Practices Manual at http://www.state.nj.us/dep/stormwater/bmp_manual2.htm or at New Jersey Geological Survey, 29 Arctic Parkway, P.O. Box 427, Trenton, New Jersey 08625-0427, (609) 984-6587.
Structural stormwater management measures shall be designed to minimize maintenance, facilitate maintenance and repairs, and ensure proper functioning. Trash racks shall be installed at the intake to the outlet structure as appropriate and shall have parallel bars with one-inch spacing between the bars to the elevation of the water quality design storm. For elevations higher than the water quality design storm, the parallel bars at the outlet structure shall be spaced no greater than 1/3 the width of the diameter of the orifice or 1/3 the width of the weir, with a minimum spacing between bars of one inch and a maximum spacing between bars of six inches. In addition, the design of trash racks must comply with the requirements of § 283-9B.
Structural stormwater management measures shall be designed, constructed and installed to be strong, durable and corrosion-resistant. Measures that are consistent with the relevant portions of the Residential Site Improvement Standards at N.J.A.C. 5:21-7.3, 5:21-7.4, and 5:21-7.5 shall be deemed to meet this requirement.
Stormwater management basins shall be designed to meet the minimum safety standards for stormwater management basins at § 283-9.
Stormwater management measure guidelines are available in the New Jersey Stormwater Best Management Practices Manual. Other stormwater management measures may be utilized, provided the design engineer demonstrates that the proposed measure and its design will accomplish the required water quantity, groundwater recharge and water quality design and performance standards established by § 283-4 of this chapter.
Manufactured treatment devices may be used to meet the requirements of § 283-4 of this chapter, provided the pollutant removal rates are verified by the New Jersey Corporation for Advanced Technology and certified by the Department.
The "Standards for Soil Erosion and Sediment Control in New Jersey" promulgated by the State Soil Conservation Committee and incorporated into N.J.A.C. 2:90. Copies of these standards may be obtained by contacting the State Soil Conservation Committee or any of the soil conservation districts listed in N.J.A.C. 2:90-1.3(a)3. The location, address, and telephone number of each soil conservation district may be obtained from the State Soil Conservation Committee, P.O. Box 330, Trenton, New Jersey 08625; (609) 292-5540;
The soil conservation districts listed in N.J.A.C. 2:90-1.3(a)3. The location, address, and telephone number of each soil conservation district may be obtained from the State Soil Conservation Committee, P.O. Box 330, Trenton, New Jersey 08625; (609) 292-5540.
Variance or exemption from stormwater design standards.
A variance or exemption from the design standards for stormwater management basins may be granted only upon a finding by the Lindenwold Joint Land Use Board that the variance or exemption will be mitigated by the construction of a stormwater project of equal construction value within the same subdrainage area (HUC).
In order to be granted a variance or exemption a development must demonstrate that the design standard cannot be met due to unusual circumstances on the existing property, such as unusual surface conditions or extremely low drainage flow rates for the two-year storm event. Variances or exemptions are not recommended for properties where any portion is developed on pervious or undeveloped open space.
In order to be granted a variance or exemption, the applicant will be required to perform a preliminary stormwater management design and cost analysis of the stormwater system that would be required to meet all the stormwater management requirements of N.J.A.C. 7:8, Subchapter 5. This analysis will be utilized to determine and select the mitigation project to be constructed by the applicant.
Stormwater basin retrofit. Provide water quality and recharge measures at existing stormwater basins within the same HUC14 under the guidance of the Lindenwold Stormwater Management Coordinator and Public Works Department. The retrofit of existing basins may be accomplished through a variety and/or combination of options to meet the mitigation costs required. Each existing basin condition and surrounding condition should be reviewed with the Public Works Department before selecting one or more of the following options:[1]
Outlet structure modifications.
Regrading and planting.
Elimination of low-flow channels.
Installation of in-line or end-of-pipe best management practice (BMP) as approved by the NJDEP to pretreat stormwater draining into an existing stormwater management basin.
Stream and stream bank stabilization. Mitigation projects other than those listed in the stormwater management plan that meet the following criteria may be presented for review and approval by the Lindenwold Stormwater Management Coordinator/Public Works Department. Stabilization projects will be reviewed for the following benefits:
Stabilization of eroded steam banks where public or private property or structures are threatened.
Reduced sediment deposition in lakes, ponds and other low-velocity areas.
Stormwater outfall restoration. Mitigation of existing stormwater outfalls within the same HUC14 may be performed under the guidance of the Lindenwold Stormwater Management Coordinator/Public Works Department. The retrofit of existing outfalls may be accomplished through a variety and/or combination of options to meet the mitigation costs required. Each existing outfall condition should be reviewed with the Borough before selecting one or more of the following options:[2]
Replacement of failed outfall structure with outlet protection.
Replacement with installation of drop manhole to set outfall structure at invert of stream channel with outlet protection.
Installation of in-line or end-of-pipe best management practice (BMP) as approved by the NJDEP to pretreat stormwater before the outfall structure.
Disconnect outfall from receiving waterway to eliminate erosion condition. This mitigation will be permitted only with detailed hydrologic analysis and stability analysis of the receiving area.
Lake and pond management. Provide a comprehensive management plan and maintenance schedule for a publicly held lake/pond within the Borough of Lindenwold.
Design costs. The developer will be responsible for the costs of all design associated with a mitigation project including the costs associated with obtaining any NJDEP approvals and permits necessary for the projects.
If a stormwater management basin has an outlet structure, escape provisions shall be incorporated in or on the structure. With the prior approval of the reviewing agency identified in Subsection C of this section a freestanding outlet structure may be exempted from this requirement.
Safety ledges shall be constructed on the slopes of all new stormwater management basins having a permanent pool of water deeper than 2 1/2 feet. Such safety ledges shall be comprised of two steps. Each step shall be four to six feet in width. One step shall be located approximately 2 1/2 feet below the permanent water surface, and the second step shall be located one to 1 1/2 feet above the permanent water surface. See Subsection D of this section for an illustration of safety ledges in a stormwater management basin.
Variance or exemption from safety standards. A variance or exemption from the safety standards for stormwater management basins may be granted only upon a written finding by the Lindenwold Joint Land Use Board that the variance or exemption will not constitute a threat to public safety.
The applicant shall submit 15 copies of the materials listed in the checklist for site development stormwater plans in accordance with Subsection C of this section.
Site development stormwater plan approval. The applicant's site development project shall be reviewed as a part of the subdivision or site plan review process by the municipal board or official from which municipal approval is sought. That municipal board or official shall consult the engineer retained by the Joint Land Use Board to determine if all of the checklist requirements have been satisfied and to determine if the project meets the standards set forth in this chapter.
Topographic base map. The reviewing engineer may require upstream tributary drainage system information as necessary. It is recommended that a topographic base map of the site be submitted which extends a minimum of 200 feet beyond the limits of the proposed development, at a scale of one inch equals 200 feet or greater, showing two-foot contour intervals. The map as appropriate may indicate the following: existing surface water drainage, shorelines, steep slopes, soils, erodible soils, perennial or intermittent streams that drain into or upstream of the Category One waters, wetlands and floodplains along with their appropriate buffer strips, marshlands and other wetlands, pervious or vegetative surfaces, existing man-made structures, roads, bearing and distances of property lines, and significant natural and man-made features not otherwise shown.
Environmental site analysis: a written and graphic description of the natural and man-made features of the site and its environs. This description should include a discussion of soil conditions, slopes, wetlands, waterways and vegetation on the site. Particular attention should be given to unique, unusual or environmentally sensitive features and to those that provide particular opportunities or constraints for development.
Project description and site plan(s): a map (or maps) at the scale of the topographical base map, indicating the location of existing and proposed buildings, roads, parking areas, utilities, structural facilities for stormwater management and sediment control, and other permanent structures. The map(s) shall also clearly show areas where alterations occur in the natural terrain and cover, including lawns and other landscaping, and seasonal high groundwater elevations. A written description of the site plan and justification of proposed changes in natural conditions may also be provided.
Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of §§ 283-3 through 283-6 are being met. The focus of this plan shall be to describe how the site is being developed to meet the objective of controlling groundwater recharge, stormwater quality and stormwater quantity problems at the source by land management and source controls whenever possible.
Comprehensive hydrologic and hydraulic design calculations for the predevelopment and post-development conditions for the design storms specified in § 283-4 of this chapter.
Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of § 283-11.
Waiver from submission requirements. The municipal official or board reviewing an application under this chapter may, in consultation with the Municipal Engineer, waive submission of any of the requirements in Subsection C(1) through (6) of this section when it can be demonstrated that the information requested is impossible to obtain or it would create a hardship on the applicant to obtain, and its absence will not materially affect the review process.
Applicability. Projects subject to review as in § 283-1C of this chapter shall comply with the requirements of Subsections B and C.
The following shall be added to Article VI, for the R-1 Zone, and Article VIII, for the R-2 Zone:[1]
Standards to limit the stormwater runoff from residential lots.
Principal building: 20% of total lot area.
Accessory building: 2% of total lot area.
Total impervious coverage: 45% of total lot area.
Editor's Note: See Ch. 365, Zoning, Articles VI and VIII.
Any person who erects, constructs, alters, repairs, converts, maintains or uses any building, structure or land in violation of this chapter shall be subject to the following penalties:
Any violation must be brought into compliance with this chapter.
A penalty as set forth in Chapter 1, § 1-1, of this Code.[1]
Each day that the violation exists constitutes a separate violation.
This chapter shall take effect immediately upon approval by the county review agency or 60 days from the receipt of the chapter by the county review agency if the county review agency should fail to act.