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• <br /> DESIGN VOLUME <br /> <br /> STORM FREQUENCY 10 ()'EARS) <br /> STORM DURATION 24 (HOURS) <br /> SLOPE FACTOR 1 <br /> <br />GRADE 5TEEP __ <br /> WATERSHED WEIGHTED RCN 89 <br /> _ 24 H_OUR__RAINFALL _ 2.9 ( INCHES) _ <br /> DETENTION TIME 24 (HOURS) <br /> ~## SEE ATTACHED RAINFALL SHEETS <br /> RAINFALL RUNOFF DEPTH 1.81__(INCHES)_ <br /> RUNOFF VOLUME 2.21725 (AC/F'T) <br /> ADJUSTED RUNOFF VOLUME 2.21725 <br /> DESIGN VOLUME 3.18325 <br /> <br /> <br /> STAGE STORAGE COMPUTATIONS <br /> ELEV AREA AREA AVE AREA INTERVAL STORAGE ACC~STORAGE <br /> FEET SGR FT ACRE ACRE FEET ACRE FEET ACRE FEET <br /> 6720 12000 .275482094 <br /> 6725 18000 .413223141 .3443526]7 5 1.72176309 1.72176309 <br /> 6730 25000 .573521029 .4935720E15 5 2.46766042 4.18962351 <br /> <br /> STORM FREQUENCY FOR PEAK DI SCHARGE ^c5 <br /> EQUIV ALENT DISCHARGE 36.62 <br /> PEAK DISCHARGE 36.82 <br /> <br /> <br /> <br /> <br /> <br />w <br />• <br />