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May -23-01 02:31P SJ COUNTY PUBLIC WORKS 209 468 2999 <br />0 B.11. LONGER DURATION RAINFALL DATA <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. (Table 13.1 is a weighted <br />average relationship developed from the twenty-eight rainfall stations <br />in and adjacent to San Joaquin County.) <br />TABLE B.1 <br />MULTIDAY RAINFALL MASS RATIOS <br />FOR <br />COUNTY OF SAN JOAQUIN <br />aainf �= 2 <br />Peak 24 hours 1 - <br />(Peak 48-hours)—(Peak 24 -hours) 0.32 <br />_....,(F.72 hoursi"ealt 48 -hours) 0.23 <br />AMIL (Peak 96-hours)—(Peak 72 -hours) 0.19 <br />(Peak 120-hours)—(Peak 96 -hours) 0.16 <br />Post -it" Fax Note 767 8 <br />Dares 23 o pages► <br />TONG <br />EEE From S p_, <br />Co./Dept. <br />Co. S . S e. FLDo CON'( <br />Phone <br />f'tkm. 0 <br />Fax �2o9I4�a �3alcU <br />Fax N <br />0 B-9 <br />P_01 <br />