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May—;d3—Ul U;d:31P SO COUNTY PUBLIC WORKS <br />B-11. LONGER DURATION <br />DATA <br />209 468 2999 P.Ol <br />The County's design storm criteria extends to a multiday design <br />storm when needed to evaluate detention basin characteristics <br />(Sections F and G. The following tabulation provides a ratio of daily <br />rainfalls to the peak 24-hour mass rainfall. (Fable B.1 is a weighted <br />average relationship developed from the twenty-eight rainfall stations <br />in and adjacent to San Joaquin County.) <br />TABLE 8.1 <br />MULTIDAY RAINFALL MASS RATIOS <br />• <br />COUNTYOF JOAQUIN <br />fall LlLrafin,s Rati.O <br />t0 PPak 24 -ho arc <br />Peak 24 -hours <br />1 <br />(Peak 48-hours)—(Peak 24 -hours) <br />(Peak 72-hours)—(Peak 48 -hours) <br />0,32 <br />(Peak 96-hours)—(Peak 72 -hours) <br />0.23 <br />(Peak 120-hours)—(Peak 96 -hours) <br />0.19 <br />0.16 <br />Post -6t" Fax Note 767 <br />DateS /Z � 0 Ag, -,10, <br />ro ANG L d <br />::---- <br />Coduept. <br />Co. S S C �iDo Cgfli f <br />Phone # t'Ywna N( <br />Fax M 2A"A)%a ^30(cU <br />Fax N <br />IM, <br />