21 Stormwater Mgmt Report_082025

Table 4.3 - Pervious Paving Systems Summary Pervious Paving 1 System # 5.1 Pervious Area (Acres) 0.20 Additional Drainage Area (Acres) 0.07 Drainage Area Ratio 0.35:1 Surface Slope (%) 2 Underdrain Size (Inches) 6 Drain Time (Hours) 0.9 (WQ) 9.4 (100-Year Future Adj. Storm) Groundwater Recharge The subject site has been previously developed and is located within the Metropolitan Planning Area (PA1). As such, the site falls under the NJDEP’s definition for an urban redevelopment area and this project will result in a decrease in impervious surfaces. Additionally, the site is a known contaminated site with soil and groundwater contamination that exceed NJDEP standards. Due to the conditions described above, no groundwater recharge is proposed as part of the stormwater management facilities on site. 5.2 Soil Erosion and Sediment Control The Soil Erosion and Sediment Control plans and details are included within the Site Plan documents prepared by Bohler and must be followed throughout construction. Silt fences, stabilized construction entrances, temporary stockpile and inlet filters are proposed during construction. This report and the Site Plan documents prepared by Bohler are being submitted to the Hudson Essex Passaic Soil Conservation District for approval. 5.3 Low-Impact Development and Non-Structural Stormwater Management Facilities In accordance with the NJDEP regulations (NJAC 7:8-2.4) and the latest New Jersey Stormwater Best Management Practices Manual, several non-structural stormwater management strategies have been incorporated into the design of the site and are listed below: ▪ Stormwater Management Report for Proposed Retail Store▪ 7 ▪ August 2025 ▪