Report 4 13 2026

​ENSURPLAN, INC.​ ​ ww.Ensurplan.​​net​ w ​ ivil Engineers & Land Surveyors C Ph: (732) 469-0400​ ​Certificate of Authorization 24GA27997700​ ​STORMWATER DRAINAGE REPORT​ ​04/13/26​ ​Minor Subdivision 15 Ridgeway Ave West Orange, NJ​ ​Design Discussion​​(continued)​ ​ he areas of the site to be studied in the proposed condition are modeled as impervious​ T ​surfaces with a curve number of 98, The proposed study area is 18,843 sf, equaling the existing​ ​condition study area. The proposed condition is modeled into two sub areas, both fully​ ​impervious, one contributing runoff to the infiltration system and the other bypassing the​ ​infiltration system with runoff traveling overland to the inlet at the rear of the property.​ ​A diagram of the drainage analysis follows…​ ​Diagram of Proposed Stormwater Management Study​ ​5​ ​Mailing Address: Post Office Box 4304, Warren, NJ 07059​