Stormwater Management Report Revised as of 01282026 4936 0314 8685 v2

Table No. 1 Design Point #1 Storm Freq. Runoff Rates (cfs) Total Volume Runoff (cf) PRE POST PRE POST 2-Year(2020) 3.42 3.38 23,157 23,111 10-Year(2020) 5.82 5.75 39,692 39,645 100-Year(2020) 10.83 10.67 74,476 74,356 2-Year(2050) 4.21 4.17 28,405 28,362 10-Year(2050) 7.17 7.08 48,587 48,528 100-Year(2050) 14.10 13.89 96,456 96,261 Table No. 2 Design Point #2 Storm Freq. Runoff Rates (cfs) Total Volume Runoff (cf) PRE POST PRE POST 2-Year(2020) 0.61 0.52 3,919 3,361 10-Year(2020) 0.99 0.91 6,436 5,818 100-Year(2020) 1.77 1.71 11,573 10,992 2-Year(2050) 0.73 0.65 4,727 4,140 10-Year(2050) 1.20 1.12 7,763 7,141 100-Year(2050) 2.26 2.22 14,774 14,261 Table No. 3 Overall Site (Total) Storm Freq. Runoff Rates (cfs) Total Volume Runoff (cf) PRE POST PRE POST 2-Year(2020) 4.03 3.90 27,076 26,472 10-Year(2020) 6.82 6.65 46,128 45,463 100-Year(2020) 12.60 12.38 86,050 85,348 2-Year(2050) 4.95 4.81 33,132 32,502 10-Year(2050) 8.36 8.20 56,350 55,669 100-Year(2050) 16.35 16.11 111,230 110,523 7