Source: https://www.ecode360.com/11361598
Timestamp: 2020-04-01 02:25:11
Document Index: 658083379

Matched Legal Cases: ['§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114', '§ 114']

City of Somers Point, NJ Stormwater and Tidal Stormwater Control
Ch 114 Art XXIX Stormwater and Tidal Stormwater Control
§ 114-210 Scope and purpose.
§ 114-211 Definitions.
§ 114-212 General standards.
§ 114-213 Stormwater management requirements for major development.
§ 114-214 Calculation of stormwater runoff and groundwater recharge.
§ 114-215 Standards for structural stormwater management measures.
§ 114-216 Sources for technical guidance.
§ 114-217 Safety standards for stormwater management basins.
§ 114-218 Requirements for a site development stormwater plan.
§ 114-219 Maintenance and repair.
§ 114-220 Violations and penalties.
§ 114-221 Effective date.
City of Somers Point, NJ / Part II, General Legislation / Development Regulations
Article XXIX Stormwater and Tidal Stormwater Control
[Added 3-23-2006 by Ord. No. 5-2006]
Policy statement. Stormwater flood control, groundwater recharge, and pollutant reduction through nonstructural or low-impact techniques shall be explored before relying on structural best management practices (BMPs). Structural BMPs should be integrated with nonstructural stormwater management strategies and proper maintenance plans. Nonstructural strategies include both environmentally sensitive site design and source controls that prevent pollutants from being placed on the site or from being exposed to stormwater. Source control plans should be developed based upon physical site conditions and the origin, nature, and the anticipated quantity or amount of potential pollutants. Multiple stormwater management BMPs may be necessary to achieve the established performance standards for water quality, quantity, and groundwater recharge. In some areas prone to tidal flooding, the municipal stormwater system conveys and controls tidal stormwater. All stormwater structures and flow pathways at elevations below the base flood elevation must be compatible with the tidal stormwater control standards and requirements set forth in § 114-213H of this article.
Purpose. It is the purpose of this article to establish minimum stormwater management requirements and controls for major development, as defined in § 114-211.
This article shall also be applicable to all major developments undertaken by the City of Somers Point.
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.
Any individual, corporation, company, partnership, firm, association, the City of Somers Point, 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.
Delineated on the State Plan Policy Map (SPPM) as the Metropolitan Planning Area (PA1). Designated Centers, Cores or Nodes;
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 § 114-213. 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 § 114-219.
Protect areas that provide water quality benefits or areas particularly susceptible to erosion and sediment loss and tidal flooding;
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 § 114-216, 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 § 114-214, either:
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 114-214, complete one of the following:
[Amended 11-8-2018 by Ord. No. 19-2018]
Demonstrate through hydrologic and hydraulic analysis that for stormwater leaving the site, postconstruction runoff hydrographs for the two-, ten-, twenty-five-, and 100-year storm events do not exceed, at any point in time, the preconstruction runoff hydrographs for the same storm events;
Demonstrate through hydrologic and hydraulic analysis that there is no increase, as compared to the preconstruction condition, in the peak runoff rates of stormwater leaving the site for the two-, ten-, twenty-five- and 100-year storm events and that the increased volume or change in timing of stormwater runoff will not increase flood damage at or downstream of the site. This analysis shall include the analysis of impacts of existing land uses and projected land uses assuming full development under existing zoning and land use ordinances in the drainage area;
Design stormwater management measures so that the postconstruction peak runoff rates for the two-, ten-, twenty-five, and 100-year storm events are 50%, 75%, 75% and 80%, respectively, of the preconstruction peak runoff rates. The percentages apply only to the postconstruction stormwater runoff that is attributable to the portion of the site on which the proposed development or project is to be constructed. The percentages shall not be applied to postconstruction stormwater runoff into tidal flood hazard areas if the increased volume of stormwater runoff will not increase flood damages below the point of discharge; or
Any application for a new agricultural development that meets the definition of major development at § 114-211 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 § 114-216 or found on the Department's Web site at www.njstormwater.org. The BMP Manual and other sources of technical guidance are listed in § 114-216. 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.
R = A+B-(AXB)/100
See § 114-215C
Additional information and examples are contained in the New Jersey Stormwater Best Management Practices Manual, which may be obtained from the address identified in § 114-216.
All stormwater shall be discharged outside of and flow through the special water resource protection area and shall comply with the standard for off-site stability in the standards for Soil Erosion and Sediment Control in New Jersey established under the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39 et seq.
If stormwater discharged outside of and flowing through the special water resource protection area cannot comply with the standard for offsite stability in the Standards for Soil Erosion and Sediment Control in New Jersey established under the Soil Erosion and Sediment Control Act, N.J.S.A. 4:24-39 et seq., then the stabilization measures in accordance with the requirements of the above standards may be placed within the special water resource protection area, provided that:
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 § 114-213G(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.
Standards and requirements for stormwater areas subject to tidal flooding:
All new stormwater and tidal stormwater outfalls that drain areas that are subject to tidal flooding shall have watertight joints and be fitted with check valves.
All new stormwater systems that tie into an existing stormwater system shall use check valves.
Where a new bulkhead is to be constructed, a minimum elevation of the top of bulkhead shall be established to minimize tidal flooding from breaching of the bulkhead.
All stormwater structures within areas subject to tidal flooding shall be constructed of precast concrete and be watertight.
New stormwater pipes for use of outfalls through an existing or proposed bulkhead shall be ductile iron pipe, Class 50 or 52. The class of pipe shall be determined due to location of the outfall and check valve.
The last 20 feet of any pipe section that is an outfall shall not have any stone bedding to transmit tidalwaters. Soils with low permeability shall be used as backfill material where required.
The design engineer shall take into account all groundwater actions on any proposed stormwater system.
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 § 114-214A(1)(a) and the rational and modified rational methods at § 114-214A(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 § 114-217D.
Stormwater management basins shall be designed to meet the minimum safety standards for stormwater management basins at § 114-217.
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 § 114-213 of this article.
Manufactured treatment devices may be used to meet the requirements of § 114-213 of this article, provided the pollutant removal rates are verified by the New Jersey Corporation for Advanced Technology and certified by the Department.
A trash rack is a device designed to catch trash and debris and prevent the clogging of outlet structures. Trash racks shall be installed at the intake to the outlet from the stormwater management basin to ensure proper functioning of the basin outlets, in accordance with the following:
For purposes of this Subsection A(3), "escape provisions" means the permanent installation of ladders, steps, rungs, or other features that provide easily accessible means of egress from stormwater management basins. Stormwater management basins shall include escape provisions as follows:
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 § 114-217C, a freestanding outlet structure may be exempted from this requirement.
The applicant shall submit five copies of the materials listed in the checklist for site development stormwater plans in accordance with Subsection C of this article.
Topographic base map. The reviewing engineer may require upstream tributary drainage system information as necessary. It is recommended that the 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 one-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; bearings and distances of property lines; and significant natural and man-made features not otherwise shown.
Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of § § 114-212 through 114-215 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 § 114-213 of this article.
Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of § 114-219.
Waiver from submission requirements. The municipal official or board reviewing an application under this article may, in consultation with the Municipal Engineer, waive submission of any of the requirements in § 114-218C(1) through C(6) of this article 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 § 114-210C of this article shall comply with the requirements § 114-219B and C.
Any person who erects, constructs, alters, repairs, converts, maintains, or uses any building, structure or land in violation of this article shall be subject to a fine not to exceed $500 or imprisonment not to exceed 30 days. Each day that a violation shall continue shall constitute a separate violation. Nothing in this article shall be construed to limit the City of Somers Point's right to institute and maintain a civil action, from seeking active injunctive relief, or to set aside or invalidate any conveyance made pursuant to a contract of sale.
This article shall take effect immediately upon the approval by the county review agency or 60 days from the receipt of the ordinance by the county review agency if the county review agency should fail to act.