Source: https://ecode360.com/14155730
Timestamp: 2019-04-25 00:05:00
Document Index: 278380490

Matched Legal Cases: ['§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87', '§ 87']

Township of Liberty, NJ Stormwater Control
§ 87A-1 Scope and purpose.
§ 87A-2 Definitions.
§ 87A-3 General standards.
§ 87A-4 Stormwater management requirements for major development.
§ 87A-5 Calculation of stormwater runoff and groundwater recharge.
§ 87A-6 Standards for structural stormwater management measures.
§ 87A-7 Sources for technical guidance.
§ 87A-8 Safety standards for stormwater management basins.
§ 87A-9 Requirements for a site development stormwater plan.
§ 87A-10 Maintenance and repair.
§ 87A-11 Violations and penalties.
§ 87A-12 Effective date.
Chapter 87A Stormwater Control
[HISTORY: Adopted by the Township Committee of the Township of Liberty 4-6-2006 by Ord. No. 06-03. Amendments noted where applicable.]
Driveways — See Ch. 53.
Environmental regulations — See Ch. 56.
Soil removal operations — See Ch. 87.
Applicability. This chapter shall be applicable to all site plans and subdivisions for the following major developments that require preliminary or final site plan or subdivision review.
Any individual, corporation, company, partnership, firm, association, the Township of Liberty, 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.
The amount of water from precipitation that infiltrates into the ground and is not evapotransplred.
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 § 87A-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 § 87A-10.
The following linear development projects are exempt from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements of § 87A-4F and G.
A waiver from strict compliance from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements of § 87A-4F and G 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:
The applicant demonstrates through an alternatives analysis that, through the use of nonstructural and structural stormwater management strategies and measures, the option selected complies with the requirements of § 87A-4F and G to the maximum extent practicable;
The applicant demonstrates that, in order to meet the requirements of § 87A-4F and G, existing structures currently in use, such as homes and buildings, would need to be condemned; and,
The applicant demonstrates that it does not own or have other rights to areas, including the potential to obtain through condemnation lands not falling under Subsection D(3) above within the upstream drainage area of the receiving stream, that would provide additional opportunities to mitigate the requirements of § 87A-4F and G that were not achievable on-site.
To the maximum extent practicable, the standards in § 87A-4F and G shall be met by incorporating nonstructural stormwater management strategies set forth at 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.
Site design features that help to prevent accumulation of trash and debris in drainage systems, including features that satisfy § 87A-4E(3) below;
Site design features identified under § 87A-4E(2)(i)[2] above shall comply with the following standard to control passage of solid and floatable materials through storm drain inlets. For purposes of this paragraph, "solid and floatable materials" means sediment, debris, trash, and other floating, suspended, or settleable solids. For exemptions to this standard see § 87A-4E(3)(c) below.
Where flows from the water quality design storm as specified in § 87A-4G(1) 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 § 87A-4G(1); or
Any land area used as a nonstructural stormwater management measure to meet the performance standards in § 87A-4F and G shall be dedicated to a government agency, subjected to a conservation restriction filed with the appropriate County Clerk's office, or subject 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 § 87A-7, or found on the Department's Web site at www.njstormwater.org.
The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 87A-5, either:
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 87A-5, complete one of the following:
Any application for a new agricultural development that meets the definition of major development at § 87A-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 § 87A-7, or found on the Department's Web site at www.njstormwater.org. The BMP Manual and other sources of technical guidance are listed in § 87A-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, PO Box 418, Trenton, New Jersey, 08625-0418.
See § 87A-6C
Stormwater management measures shall also be designed to reduce, to the maximum extent feasible, the postconstruction nutrient load of the anticipated load from the developed site in stormwater runoff generated from the water quality design storm. In achieving reduction of nutrients to the maximum extent feasible, the design of the site shall include nonstructural strategies and structural measures that optimize nutrient removal while still achieving the performance standards in § 87A-4F and G.
Additional information and examples are contained in the New Jersey Stormwater Best Management Practices Manual, which may be obtained from the address identified in § 87A-7.
Special water resource protection areas shall be established along all waters designated Category One at N.J.A.C. 7:9B, and perennial or intermittent streams that drain into or upstream of the Category One waters as shown on the USGS Quadrangle Maps or in the County Soil Surveys, within the associated HUC14 drainage area. These areas shall be established for the protection of water quality, aesthetic value, exceptional ecological significance, exceptional recreational significance, exceptional water supply significance, and exceptional fisheries significance of those established Category One waters. These areas shall be designated and protected as follows.
A stream corridor protection plan may be developed by a regional stormwater management planning committee as an element of a regional stormwater management plan, or by a municipality through an adopted municipal stormwater management plan. If a stream corridor protection plan for a waterway subject to § 87A-4G(8) has been approved by the Department of Environmental Protection, then the provisions of the plan shall be the applicable special water resource protection area requirements for that waterway. A stream corridor protection plan for a waterway subject to Subsection G(8) shall maintain or enhance the current functional value and overall condition of the special water resource protection area as defined in Subsection G(8)(a)[1] above. In no case shall a stream corridor protection plan allow the reduction of the special water resource protection area to less than 150 feet as measured perpendicular to the waterway subject to this subsection.
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 § 87A-5A(1)(a) and the Rational and Modified Rational Methods at § 87A-5A(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 have 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).
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 § 87A-8D.
Stormwater management basins shall be designed to meet the minimum safety standards for stormwater management basins at § 87A-8.
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 § 87A-4 of this chapter.
Manufactured treatment devices may be used to meet the requirements of § 87A-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)4. 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)4. 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.
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 § 87A-8C a freestanding outlet structure may be exempted from this requirement.
Whenever an applicant seeks municipal approval of a development subject to this chapter, the applicant shall submit all of the required components of the checklist for the site development stormwater plan at § 87A-9C below as part of the submission of the applicant's application for subdivision or site plan approval.
The applicant shall submit 15 copies of the materials listed in the checklist for site development stormwater plans in accordance with § 87A-9C of this chapter.
Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of §§ 87A-3 through 87A-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 postdevelopment conditions for the design storms specified in § 87A-4 of this chapter.
Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of § 87A-10.
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 § 87A-9C(1) through C(6) of this chapter 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 § 87A-1C of this chapter shall comply with the requirements of § 87A-10B and C.
If the person responsible for maintenance identified under § 87A-10B(2) above is not a public agency, the maintenance plan and any future revisions based on § 87A-10B(7) below shall be recorded upon the deed of record for each property on which the maintenance described in the maintenance plan must be undertaken.
The person responsible for maintenance identified under § 87A-10B(2) above shall maintain a detailed log of all preventative and corrective maintenance for the structural stormwater management measures incorporated into the design of the development, including a record of all inspections and copies of all maintenance-related work orders.
The person responsible for maintenance identified under § 87A-10B(2) above shall evaluate the effectiveness of the maintenance plan at least once per year and adjust the plan and the deed as needed.
The person responsible for maintenance identified under § 87A-10B(2) above shall retain and make available, upon request by any public entity with administrative, health, environmental, or safety authority over the site, the maintenance plan and the documentation required by § 87A-10B(6) and B(7) above.
The requirements of § 87A-10B(3) and B(4) do not apply to stormwater management facilities that are dedicated to and accepted by the municipality or another governmental agency.
[Amended 6-7-2007 by Ord. No. 07-09]
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 one or more of the following penalties: Imprisonment for a term not exceeding 90 days; a fine not exceeding $2,000; and a period of community service not to exceed 90 days.