Drainage Report

5 ‘ 5 — 14,956 cf*12in/ft Duration of Infiltration Period (hrs.) = 10,178 sf+037 n/a Basin #4 Infiltrated Volume (cf): 18,823 Infiltration Area (sf): 10,178 7 . . . — 18,823 cf*12in/ft Duration of Infiltration Period (hrs.) = T0178 sfe031 n/a Basin #5 Infiltrated Volume (cf): 20,319 Infiltration Area (sf): 12,410 20,319 cf*12in/ft Duration of Infiltration Period (hrs.) = TSAOsfO 33 ini 61.40 hrs. Basin #6 Infiltrated Volume (cf): 1,346 Infiltration Area (sf): 1,000 Duration of Infiltration Period (hrs.) = Sis faint _ 59.10 hrs. 1,000 sf*0.31 in/hr = 47.66 hrs. = 71.59 hrs. SEBOS ACS Anderson Consulting Services LLC Permeability Rate (in/hr): 0.31 Permeability Rate (in/hr): 0.32 Permeability Rate (in/hr): 0.31 Recharge Spreadsheet (See Recharge spreadsheet included after this table) “As note on page 3 of this report a minimum of 7 acres of the disturbed area of this project has shallow bedrock based on the geotechnical studies performed. This area is largely in the drainage area to basin 1. If 7 acres of groundwater recharge is eliminated for this area. The existing recharge for the basin 1 area becomes .3 AF Existing ‘Total Rainfall (1) Total Runoff Area Recharge (2) | Basin Recharge Total Recharge Conditions Basin 1 Area 2.43 69 1.74 1.74 1.3 AF Basin 2 Area 3.06 87 2.19 2.19 Basin 3 Area ra) 21 54 54 Basin 4 Area 64 18 46 - 46 Basin 5 Area 1.10 31 79 - 79 Basin 6 Area 06 02 04 £ 04 Total Existing 8.04 3.36 5.76 5.76/ 4.32** Recharge (AF) Proposed Conditions Basin 1 2.07 1.47 60 1.37 1.97 Basin 2-1 7 07 A .07 (4) 7 Basin 2-2 41 12 2 -30(4) 59 Anderson Consulting Services LLC 40 Miller Drive, Boonton, NJ 07005 973-975-0703 (O) 973-886-7336 (C) PAndersonpe@gmail.com