West Orange City Zoning Code
§ 25-29.11 Requirements for Site Development Stormwater Plan
Minor Development.
[Added 5-20-2025 by Ord. No. 2918-25]
a.
Submission of site development stormwater plan.
1.
Whenever an applicant seeks municipal approval of a minor development subject to this section, the applicant shall submit all the required components of the checklist for the site development stormwater plan at § 25-29.11c below as part of the submission of the application for approval.
2.
The applicant shall demonstrate that the project meets the standards set forth in this section.
3.
The applicant shall submit a complete electronic copy, and three hard copies of the materials listed in the checklist for site development stormwater plans in accordance with § 25-29.11c of this section.
b.
Site development stormwater plan approval. The applicant's site development project shall be reviewed as a part of the review process by the municipal board or official from which municipal approval is sought. That municipal board or official shall consult the Township Engineer to determine if all the checklist requirements have been satisfied and to determine if the project meets the standards set forth in this article.
c.
Submission of minor development stormwater plan. The following shall be required:
1.
Boundary survey of the property to scale within five years of the proposal;
2.
Topographic base map. The design engineer shall provide sufficient topographic and location data that shows existing contours, at a scale of no greater than one inch equals 30 feet, to allow the Township Engineer to make an appropriate evaluation of the development proposal. The topography and existing conditions must be based on a plan prepared by a NJ licensed surveyor;
3.
Project development plans. A map at the scale of the topographical base map indicating the location of existing and proposed buildings, proposed contours and other improvements shall be provided;
4.
Location of floodplains, wetlands, and water bodies if application is directly within 300 feet of same;
5.
Any state agency approvals as may be required, NJDEP permits, HEPSCD permits;
6.
Grading and drainage/stormwater management facilities map illustrated on a map of the same scale as the topographic base map, shall be included:
(a)
Total area to be disturbed, paved, or built upon, proposed surface contours, land area to be occupied by the stormwater management facilities and the type of vegetation thereon, and details of the proposed plan to control and discharge;
(b)
Existing and proposed contours;
(c)
Existing and proposed spot elevations at building corners, property corners, street gutter line, top of curb, top of depressed curb, top and bottom of wall and around structures;
(d)
Existing and proposed utility connections to the existing and proposed structures;
(e)
Finished floor, basement/cellar and garage floor elevations;
(f)
Location of roof leaders;
(g)
Design and calculations of the proposed stormwater management facility;
(h)
Details of all stormwater management facility design, during and after construction;
(i)
Maintenance manual for stormwater facilities in accordance with NJDEP guidelines and BMP manual;
7.
Plan required to be signed and sealed by a NJ licensed professional such as an architect, engineer and surveyor.
d.
Calculations. Calculations to demonstrate compliance with §§ 25-29.3 and 25-29.9 of this section. Stormwater management control measures for all minor developments shall depend on the hydrologic properties of soils or require certain separation from the seasonal high-water table and 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 evaluate the suitability and distribution of soils present at the location of the control measure. On a case-by-case basis, the Township Engineer may require a soil evaluation to a be a condition of any approved plan and be completed prior to or during construction and installation of any stormwater management BMP on the site.
e.
Maintenance and repair plan. Minor development BMPs shall be operated and maintained in accordance with guidance published and provided by NJDEP Stormwater Best Management Practices.
f.
Waiver from submission requirements. The municipal official or board reviewing an application under this article may, in consultation with the Township Engineer, waive submission of any of the requirements in § 25-29.11c1 through 3 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.
