2870-24 Amending and Supplementing Chapter 25 Section 29 of the Township of West Orange Municipal Code-Stormwater Mgmt-RedLined.pdf

16 4. If a variance in accordance with N.J.A.C. 7:8-4.6 or a waiver from strict compliance in accordance with § 25-29.4d is granted from the requirements of this subsection, then BMPs from Table 1, 2, or 3, and/or an alternative stormwater management measure approved in accordance with § 25-29.4g may be used to meet the groundwater recharge, stormwater runoff quality, and stormwater runoff quantity standards at § 25-29.4p, q, and r. 5. For separate or combined storm sewer improvement projects, such as sewer separation, undertaken by a government agency or public utility (for example, a sewerage company), the requirements of this subsection shall only apply to areas owned in fee simple by the government agency or utility, and areas within a right- of-way or easement held or controlled by the government agency or utility; the entity shall not be required to obtain additional property or property rights to fully satisfy the requirements of this subsection. Regardless of the amount of area of a separate or combined storm sewer improvement project subject to the green infrastructure requirements of this subsection, each project shall fully comply with the applicable groundwater recharge, stormwater runoff quality control, and stormwater runoff quantity standards at § 25-29.4p, q, and r., unless the project is granted a waiver from strict compliance in accordance with§ 25-29.4d . P. Groundwater Recharge Standards 1. This subsection contains the minimum design and performance standards for groundwater recharge as follows: 2. The design engineer shall, using the assumptions and factors for stormwater runoff and groundwater recharge calculations at § 25-29.5, either: i. Demonstrate through hydrologic and hydraulic analysis that the site and its stormwater management measures maintain 100 percent of the average annual pre-construction groundwater recharge volume for the site; or ii. Demonstrate through hydrologic and hydraulic analysis that the increase of stormwater runoff volume from pre-construction to post-construction for the projected 2-year storm, as defined and determined pursuant to § 25-29.5d of this ordinance is infiltrated. 3. This groundwater recharge requirement does not apply to projects within the “urban redevelopment area,” or to projects subject to 4 below. 4. The following types of stormwater shall not be recharged: i. Stormwater from areas of high

ement does not apply to projects within the “urban redevelopment area,” or to projects subject to 4 below. 4. The following types of stormwater shall not be recharged: i. Stormwater from areas of high pollutant loading. High pollutant loading areas are areas in industrial and commercial developments where solvents and/or petroleum products are loaded/unloaded, stored, or applied, areas where pesticides are loaded/unloaded or stored; areas where hazardous materials are expected to be present in greater than “reportable quantities” as defined by the United States Environmental Protection Agency (EPA) at 40 CFR 302.4; areas where recharge would be inconsistent with Department approved remedial action work plan approved pursuant to the Administrative Deleted: Section IV.D Deleted: Deleted: Section IV.G Deleted: Deleted: Section IV.P, Q and R Deleted: Section IV.P, Q and R Deleted: Section IV.D Deleted: Section V Deleted: Section V.D