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�` • r • <br />IV. STORAGE TIME: The Instant Storage Begi�s until the Pea4: Storage <br />is Atteined (mi�). <br />,---• <br />T c -25 +�2706 • <br />QO <br />T - -25 +�2706 <br />.225 <br />T = -25 + 110 <br />T = 73 min. <br />U. VOIUME OF WATER FLOWING INTO THE RETENTION BASIN PER ACRE <br />Ih1PERUIOUSNE55 (FT3/AC). <br />V3 = 4329T _ 40 Q T <br />T+25 0 <br />VS =. 4329 BS) _ 40 (0.28)(d�) <br />85+25 <br />V = 33�15-765 <br />s <br />V = 2580 ft.3/AC <br />s <br />UI. htAXIh1Ul•1 VOLUh1E OF 4lATER STORED IN RETENTION BASIN (FT3) <br />VT = US x Area x Cp <br />VT = 2580 x 7 x 0.80 <br />UT = 14,449 ft3 <br />VII. On-site Storage provided <br />375' of 84" cmp Ca 38.5 cu. ft/ft = 14,438 cu. fi. <br />8' of 36" cmp � 7.1 cu. ft/ft = 57 cu. ft. <br />TOTAL S70RAGE VOLUh1E = 14,495 cu, ft. <br />_J <br />