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<br />The following three graphs in Figures 26, 27, and 28, illustrate the five steps used to <br />determine excessive III. <br /> <br />Figure 26: Steps 1, 2, and 3 in Determining Excessive III <br />12 <br /> <br />10 <br /> <br />--i <br />I <br /> <br />Step 1: Determine 3 year average flow <br /> <br />Step 2 : Calulate the Allowable Peak Flow using the MCES table <br />relating peak to average flows used for design <br /> <br /> <br />Step 3: Historical dry weather flow pattern <br />representing close to 3 year annual average flow <br /> <br /> 8 <br />.. <br />a <br />g <br />. <br />. <br />~ <br /> . . , <br /> . . . , , . <br /> V . . , . <br /> \I .; <br /> 2 <br /> <br />!" <br />, .. <br /> <br />,-. <br />. . <br />. <br /> <br /> <br />t <br />. , <br />. . <br /> <br />. <br />, . <br />. , <br />. . <br />, . <br />V <br /> <br />. I <br />~ I <br />, : <br />IJ <br /> <br />, <br />. . <br />\: <br /> <br />, <br />, . <br />" <br /> <br />. I <br />~ . <br />V <br /> <br />~ , <br />. . <br />\., <br /> <br />, <br />, . <br />, . <br />.; <br /> <br />o <br />6/18/030:00 61191030:00 61201030:00 6121/030:00 61221030:00 61231030:00 6/24/030:00 6/251030:00 61261030:00 6/271030:00 6128103. <br /> <br />Figure 27: Step 4 in Determining Excessive III <br /> <br />12 <br /> <br />Allowable Peak Flow <br /> <br />10 <br /> <br />- <br />, <br /> <br />4 <br /> <br /> <br />Step 4: Subtract dry weather flow pattern from monitored wet <br />weather flow and plot the 1/1 response to precipitation to <br />e ermIne e pea our 0 <br /> <br />" <br /> <br />". <br /> <br />.. <br />a <br />g <br />! <br />~ <br /> <br />o <br />61181030:00 61191030:00 61201030:00 6121/03000 6/22/030:00 6/231030:00 6/241030:00 6125/030:00 6126103000 6/27/030:00 6/28J03000 <br /> <br />2 <br />