Source: https://ecode360.com/8543166
Timestamp: 2020-02-28 04:18:12
Document Index: 538105230

Matched Legal Cases: ['§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 363', '§ 1', '§ 363']

Borough of Paramus, NJ Governing Stormwater Management
Ch 363 Art VII Governing Stormwater Management
§ 363-36 Scope and purpose.
§ 363-37 General standards.
§ 363-38 Stormwater management requirements for major development.
§ 363-39 Calculation of stormwater runoff and groundwater recharge.
§ 363-40 Standards for structural stormwater management measures.
§ 363-41 Sources for technical guidance.
§ 363-42 Safety standards for stormwater management basins.
§ 363-43 Requirements for a site development stormwater plan.
§ 363-44 Maintenance and repair.
§ 363-45 Definitions.
§ 363-46 Violations and enforcement.
§ 363-46.1 Zero increase in stormwater runoff.
Article VII Governing Stormwater Management
[Adopted 9-19-2006 by Ord. No. 06-27[1]]
Editor's Note: This ordinance also repealed Ord. No. 06-13, adopted 5-9-2006.
Policy statement. Flood control, groundwater recharge, and pollutant reduction through nonstructural or low-impact techniques shall be explored before relying on structural BMPs. Structural BMPs should be integrated with nonstructural stormwater management measures and proper maintenance plans. Nonstructural measures include both environmentally sensitive site design and source controls that prevent pollutants from being placed on the site. Source control plans should be developed based upon physical site conditions and the origin, nature, and the anticipated loading of potential pollutants. Multiple stormwater management BMPs may be necessary to achieve the established performance standards for water quality, quantity, and groundwater recharge.
Purpose. It is the purpose of this article to establish minimum stormwater management requirements and controls for major development.
This article shall be all applicable to any site plan or subdivisions for the following major developments that require preliminary or final site plan or subdivision review:
This article shall also be applicable to all major developments undertaken by the Borough of Paramus.
Compatibility with other permit and ordinance requirements. Development approvals issued pursuant to this article 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 article shall be held to be the minimum requirements for the promotion of the public health, safety, and general welfare. This article is not intended to interfere with, abrogate, or annul any other ordinances, rule or regulation, statute, or other provision of law except that, where any provision of this article 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.
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 this section. To the maximum extent feasible, 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 standards in this article apply only to new major development and are intended to minimize the impact of stormwater runoff on water quality and water quantity in receiving water bodies and maintain groundwater recharge. The standards do not apply to new major development to the extent that alternative design and performance standards are applicable under a regional stormwater management plan or water quality management plan adopted in accordance with Department rules. Such alternative standards shall provide at least as much protection from stormwater-related loss of groundwater recharge, stormwater quantity and water quality impacts of major development projects as would be provided under the standards in this subchapter.
For site improvements regulated under the Residential Site Improvement Standards (RSIS) at N.J.A.C. 5:21, the RSIS shall apply in addition to this section except to the extent the RSIS are superseded by this section or alternative standards applicable under a regional stormwater management plan or water quality management plan adopted in accordance with Department rules.
The development shall incorporate a maintenance plan for the stormwater management measures incorporated into the design of a major development.
The following linear development projects are exempt from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements at § 363-38 F and G:
A waiver from strict compliance from the groundwater recharge, stormwater runoff quantity, and stormwater runoff quality requirements at § 363-38 F 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 § 363-38 F and G to the maximum extent practicable;
The applicant demonstrates that, in order to meet the requirements at § 363-38 F 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 for requirements of § 363-38 F and G that were not achievable on site.
Nonstructural stormwater management strategies:
To the maximum extent practicable, the standards in § 363-38 F and G shall be met by incorporating nonstructural stormwater management strategies 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 § 363-38 E(2) below into the design of a particular project, the applicant shall identify the strategy considered and provide a basis for the contention.
Nonstructural stormwater management measures incorporated into site design shall:
Provide other source controls to prevent or minimize the use or exposure of pollutants at the site in order to prevent or minimize the release of those pollutants into stormwater runoff. These source controls include, but are not limited to:
Site design features identified under § 363-38E(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 § 363-38E(3)(c) below.
Where flows from the water quality design storm as specified in § 363-38G(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 § 363-38 G(1); or
Any land area used as a nonstructural stormwater management measure to meet the performance standards in § 363-38 F 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 measures is available in the New Jersey Stormwater Best Management Practices Manual. The manual is available on the Department of Environmental Protection's stormwater web page at http://www.njstormwater.org.
Erosion control, groundwater recharge and runoff quantity standards:
The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 363-39, either:
This groundwater recharge requirement does not apply to projects within the "urban redevelopment" area, or projects subject to Subsection F(1)(b)[3] below.
In order to control stormwater runoff quantity impacts, the design engineer shall, using the assumptions and factors for stormwater runoff calculations at § 363-39, complete one of the following:
In tidal flood hazard areas, stormwater runoff quantity analysis in accordance with Subsections F(1)(c)[1], F(1)(c)[2] and F(1)(c)[3] above shall only be applied if the increased volume of stormwater runoff could increase flood damages below the point of discharge.
Any application for a new agricultural development that meets the definition of major development at § 363-45 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 § 363-41, or found on the Department's Web site at www.njstormwater.org. The BMP Manual and other sources of technical guidance are listed in § 363-41. 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.
TSS % Removal Rate
See § 363-40C
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 § 363-38F 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 § 363-41.
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. 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.
If stormwater discharged outside of and flowing through the special water resource protection area cannot 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., 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:
Temperature shall be addressed to ensure no impact on receiving waterway;
Subsection G(8) of this article does not apply to the construction of one individual single-family dwelling that is not part of a larger development on a lot receiving preliminary or final subdivision approval on or before February 2, 2004, provided that the construction begins on or before February 2, 2009.
The USDA Natural Resources Conservation Service (NRCS) methodology, including the NRCS Runoff Equation and Dimensionless Unit Hydrograph, as described in the NRCS National Engineering Handbook Section 4 — Hydrology and Technical Release 55 - Urban Hydrology for Small Watersheds; or
In computing stormwater runoff from all design storms, the design engineer shall consider the relative stormwater runoff rates and/or volumes of pervious and impervious surfaces separately to accurately compute the rates and volume of stormwater runoff from the site. To calculate runoff from unconnected impervious cover, urban impervious area modifications as described in the NRCS Technical Release-55, Urban Hydrology for Small Watersheds and other methods may be employed.
Groundwater recharge may be calculated in accordance with the following: The New Jersey Geological Survey 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/njgs/; 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 § 363-42C.
Stormwater management basins shall be designed to meet the minimum safety standards for stormwater management basins at § 363-42.
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 this article.
Manufactured treatment devices may be used to meet the requirements of this article, provided the pollutant removal rates are verified by the New Jersey Corporation for Advanced Technology and certified by the Department.
Technical guidance for stormwater management measures can be found in the documents listed at Subsections A(1) and (2) below, which are available from Maps and Publications, Department of Environmental Protection, 428 East State Street, P.O. Box 420, Trenton, New Jersey, 08625; telephone (609) 777-1038.
This section sets forth requirements to protect public safety through the proper design and operation of stormwater management basins. This article applies to any new stormwater management basin.
The provisions of this section are not intended to preempt more stringent municipal or County safety requirements for new or existing stormwater management basins. Borough and County stormwater management plans and ordinances may, pursuant to their authority, require existing stormwater management basins to be retrofitted to meet one or more of the safety standards in § 363-42C(1), C(2) and C(3) for trash racks, overflow grates, and escape provisions at outlet structures.
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 § 363-42D, 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 § 363-42D for an illustration of safety ledges in a stormwater management basin.
The applicant shall submit 25 copies of the materials listed in the checklist for site development stormwater plans in accordance with Subsection C of this article.
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 Planning and/or Zoning Board (as appropriate) to determine if all the checklist requirements have been satisfied and to determine if the project meets the standards set forth in 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 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 1 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.
Land use planning and source control plan. This plan shall provide a demonstration of how the goals and standards of §§ 363-37 through 363-40 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 § 363-38 of this article.
When the proposed stormwater management control measures (e.g. infiltration basins) depends on the hydrologic properties of soils, then a soils report shall be submitted. The soils report shall be based on on-site boring logs or soil pit profiles. The number and location of required soil borings or soil pits shall be determined based on what is needed to determine the suitability and distribution of soil types present at the location of the control measure.
Maintenance and repair plan. The design and planning of the stormwater management facility shall meet the maintenance requirements of § 363-44.
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 Subsections C(1)(a) through C(1)(f) 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 § 363-36C of this article shall comply with the requirements of Subsections B and C.
In the event that the stormwater management facility becomes a danger to public safety or public health, or if it is in need of maintenance, the municipality shall so notify the responsible person in writing. Upon receipt of that notice, the responsible person shall have 14 days to effect maintenance and repair of the facility in a manner that is approved by the Municipal Engineer or his designee. If the responsible person fails or refuses to perform such maintenance and repair, the municipality or county may immediately proceed to do so and shall bill the cost thereof to the responsible person.
Nothing in this section shall preclude the Borough from requiring the posting of a performance or maintenance guarantee in accordance with N.J.S.A. 40:55D-53.
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, 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.
ENVIRONMENTALLY CONSTRAINED AREA
The following areas where the physical alteration of the land is in some way restricted, either through regulation, easement, deed restriction or ownership, such as wetlands, floodplains, threatened and endangered species sites or designated habitats, and parks and preserves. 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 development that provides for ultimately disturbing one or more acres of land or increasing impervious surface by 1/4 acre or more. Disturbance for the purpose of this rule is the placement of impervious surface or exposure and/or movement of soil or bedrock or clearing, cutting, or removing of vegetation. Projects undertaken by any government agency which otherwise meet the definition of "major development" but which do not require approval under the Municipal Land Use Law, N.J.S.A. 40:55D-1 et seq., are also considered "major development."
Any individual, corporation, company, partnership, firm, association, or political subdivision of this state and any state, interstate or federal agency.
Water resulting from precipitation (including rain and snow) that runs off the land's surface, is transmitted to the subsurface, or is captured by separate storm sewers or other sewage or drainage facilities.
Any person or entity who shall violate the terms and provisions of this article shall, upon conviction, be subject to the penalties provided by § 1-15 of the Code of the Borough of Paramus. This article shall be enforced by the Police Department, the Superintendent of DPW or his designee, and the Borough Engineer.
[Added 5-21-2019 by Ord. No. 19-10]
Purpose. It is the purpose of this section to establish minimum stormwater management requirements and controls for the discharge of surface water from construction, including, but not limited to, new dwellings, all enlargement of or addition to existing structures and site work not defined in § 363-36C.
Applicability. This section shall be applicable to all minor site plans and development, including applications for building permits for the construction of a new structure, or enlargement of or addition to an existing structure, in which the completed improvements shall result in an increase of impervious area of 500 square feet or more.
Stormwater requirements.
The property owner or developer/contractor shall not cause surface water runoff from one lot to another which affects the proper use of any other lot, or causes excessive water accumulation on, or damage to, any other lot, or any structure thereon. The property owner or developer/contractor shall construct such swales, drains, walls or other drainage facilities as are necessary to prevent water runoff from interfering with the use of or damage to any other lot, or any structure thereon.
All applications for a building permit or site work permit for properties to which this section applies shall contain a grading plan prepared by a professional engineer which includes topography, elevations and drainage patterns providing for a zero increase or reduction in stormwater runoff as a result of the completed project.
The Borough Engineer or his designated representative shall review each application for a building permit or soil movement permit for properties to which this section applies and approve same as providing for a zero increase in stormwater runoff for the completed project.
No building permit or site work permit shall be issued for any project to which this section applies when, in the opinion of the Borough Engineer, the applicant fails to provide for a zero increase in stormwater runoff.
The movement of any soil or property shall not result in any increase in the amount of, rate or a change in the direction of stormwater runoff of the lot and shall not restrict or prevent the current flow of stormwater from adjacent lots across the subject lot.
At the time of the application for a building permit for any project to which this section applies, the applicant shall deposit funds in escrow to cover or defray the cost of the Borough Engineer's review of the application relative to stormwater runoff and/or other site-work-related items.
Prior to the issuance of a certificate of occupancy or approval for construction performance in accordance with this section the applicant's professional engineer shall certify, in writing, that the construction and/or landscaping was performed in accordance with the grading plans and that there is a zero increase in stormwater runoff.
Design guidelines. An application for a building permit for any project to which this section applies, shall include an underground dry well or similar system designed to adequately handle stormwater runoff generated on impervious areas discharged into the system. The following are minimum requirements for the dry well or similar system design:
The dry well shall be designed to fully retain at least a ten-year, sixty-minute duration storm runoff generated on the additional impervious area.
Drainage calculations, signed and sealed by a licensed professional civil engineer, shall be submitted for applications which, in the opinion of the Borough Engineer, may alter the preexisting stormwater discharge pattern which exits from the site in question. The stormwater discharge rate and total volume to neighboring properties must be maintained or reduced during or following soil movement.
If an area larger than the additional impervious surface is discharged into the dry well, the dry well shall be designed to retain the runoff generated on the total area connected to the dry well.
The dry well invert shall be at a minimum two feet above the seasonal high-water table.
The dry wells should be inspected once a year and cleaned as necessary. Maintenance procedures are to be shown on the grading plan or as a separate document.
Applications which propose the use of groundwater infiltration shall be accompanied by a soil log with the site's seasonal high-groundwater elevation, certified by a licensed professional civil engineer. In lieu of a soil log, the applicant's engineer may perform a percolation test.
The percolation test and the installation of the groundwater infiltration system must be witnessed by the Borough Engineer or his representative. The applicant's engineer shall contact the Borough Engineer a minimum of 48 hours prior to the test and construction of the infiltration system to schedule an inspection.
Discharge flow generated by sump pumps is to be mitigated by the installation of dry wells, the connection to a storm sewer and/or use of one's own property for discharge of the water, so long as such discharge does not adversely affect or flow into any adjacent property.
The discharge location of basement sump pumps must be shown on the grading plan.
Any costs associated with compliance of zero increase in stormwater or sump pump discharge regulations are to be borne by the applicant and/or developer.
Severability and construction. This section shall be construed consistent with the purpose stated in Section 1 hereof.[1] Any ambiguities in this section shall be construed in accordance with the purpose of this section. If any part of this section is invalidated by a court of competent jurisdiction, the remainder of this section shall be saved to the full extent possible. This section repeals provisions of the Paramus Code only where stated herein; otherwise, this section is amendatory and supplementary to existing provisions of the Paramus Code.
Editor's Note: See the original ordinance on file in the Borough offices.
Repealer. All ordinances or parts thereof inconsistent herewith are hereby repealed to the extent of such inconsistency. All ordinances are hereby amended to be consistent with this section, and all ordinances, including this one, shall be construed consistent with the express purpose of this section.