STORMWATER TP = TC 0.5 + 0.6 TC

in which Qp is the peak discharge in cfs A is the drainage area.

2) 2.64 ft3 /sec = 0.6 * A* [2( 62.2 ft /sec2)( 1.5 ft ]0.5. Bruns Avenue Stormwater Wetland (Johnson, Hathaway, and Hunt) 0.5 MB .pdf. For sites on gaged stream and having a drainage area within 50% (0.5 to 1.5)of the. of Urban Stromwater Management Systems" ASCE and WEF ISBN 0-87262-855- 8. Tc = L/0.6 where L= l^0.8(S+1)^0.7/1900Y^0.5. Water Harvesting Rooftop Runoff Water Quality (2009) 0.6 MB .pdf. WINTR55 results for modified CN = 95 and tc = 0.1 hr: For 1.25-inch rainfall. Estimate time of concentration Tc; Calculate time to peak Tp = Tc + 0.6Tc(hrs.