J_2024 05 09_West Orange Stormwater Management Plan

Stormwater Management Plan Revision 0 Hydrology and Hydraulics Table 2.3: Land Coverages Land Coverage CN HSG Pre-Development Impervious, Pavement 98 D >75% Grass cover, Good 80 D Yard Stone/Gravel Pad 85 D Brush, Good 73 D Non-Contributory* 73-85 D Post-Development Impervious, Pavement 98 D >75% Grass cover, Good 80 D Yard Stone/Gravel Pad 85 D Brush, Good 73 D Non-Contributory* 73-85 D Area (acres) 1.735 1.752 2.011 1.271 1.456 2.054 1.665 2.332 2.024 0.150 *Non-Contributory refers to areas that do not contribute to bioretention or the existing Aquashield system. NonContributory areas include the grassed slope areas and the transformer pits. Public Service Electric & Gas Company 2-2 Burns & McDonnell