PB 22 10 Altera 769 LLC Filed Application with Exhibits Final Site Plan Phase 2

series of proposed inlets and conveyed to the proposed aboveground bioretention basin. The bioretention basin has been designed with an 18” soil bed and mainly site tolerant vegetation; therefore providing 80% TSS removal rate in accordance with the NJDEP BMP Guidelines for the tributary areas. VIII. GROUNDWATER RECHARGE According to the Stormwater Basin Area Investigation Report, prepared by Dynamic Earth, LLC, dated January 14, 2022, enclosed within the Appendix of this report, the on-site soils do not exhibit permeability to allow for proper infiltration. Therefore, this project is exempt from the Groundwater Recharge requirements of the Township of West Orange and NJAC 7:8. IX. CONCLUSION The proposed project has been designed in a manner that will not adversely impact the existing drainage patterns, adjacent roadways or adjacent parcels. Stormwater runoff rates for the 2, 10, and 100-year design storms will comply with the runoff rate requirements of Township of West Orange and NJAC 7:8. Additionally, stormwater runoff rates to the points of interests shall be reduced compared to existing conditions. Furthermore, the proposed bioretention basin has been designed in accordance with the NJ BMP Manual requirements thereby providing the required 80% TSS removal rate for the net increase in vehicular surface study area. With that stated, it is evident that the proposed development will not have a negative impact on the existing stormwater management system within the vicinity of the subject parcel. Altera 769, LLC 9 Revised August 2022 DECPC #2530-99-006