2026 05 Storm Water Management Report rcd 5 6 2026

Underground Detention Basin Summary Table Storm Event (years) Water Surface Elevation (ft) Outflow (CFS) Water Quality 618.77 0.22 Current – 2 618.91 0.24 Current – 10 619.58 0.31 Current – 100 620.82 0.94 Projected – 2 619.12 0.26 Projected – 10 619.94 0.34 Projected – 100 621.43 1.35 6. Green Infrastructure Compliance The bioretention basin noted above has been designed to comply with the stormwater runoff quantity, quality, and groundwater recharge requirements for the proposed development as applicable. The proposed basin has been designed in accordance with NJAC 7:8 and the New Jersey Stormwater Best Management Practices. The tables below summarize the design considerations for each basin, see the Site Plan details for additional information. Small-Scale Bioretention Basins (Table 5-1 – Quantity, Quality, & Recharge) Design Criteria Required Provided Total Drainage Area -- 0.146 acres Min. Storage Volume below 0.008 Ac-FT 0.008 Ac-FT 1st Orifice Depth of Soil Bed 18 in. Terrestrial Forested 18 in. Terrestrial Forested Community Community Max. Contributory DA 2.5 acres 0.146 acres Max. Drain Time 72 hours 27.64 hours Separation from SHWT 1 foot (Underdrain) SHWT Not encountered to depth elevation 615.0 (TP-05) Design Permeability Rate Min. = 0.5 in/hr 0.5 in/hr Max. = 10 in/hr Underdrains are proposed Max. Depth of WQ Storm 1.0 feet 0.79 feet 7. Water Quantity Control

Max. = 10 in/hr Underdrains are proposed Max. Depth of WQ Storm 1.0 feet 0.79 feet 7. Water Quantity Control Compliance The site has been designed to reduce peak flows for the 2-, 10- and 100-year storm events to the maximum extent practical as compared to the pre-development conditions. The points of analysis have been identified on the Drainage Area Maps as previously described. Below are summary tables demonstrating the proposed peak flows. Mavis Tire Supply, LLC July 2025 DEC# 1956-24-04187 7 Last revised May 2026