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Schmidt Development <br />Drainage Study <br />12/20/07 <br />A. DESIGN CRITERIA <br />The City of Everett Drainage Ordinance does not require that storm water from new <br />impervious surfaces created by development within the downtown Combined Sewer Area <br />be detained. Normally a Santa Barbara Unit Hydrograph Methodology would be required <br />detentionto size <br />irement is <br />susp nded forthe downtown area whey the public torn faci iti searetCombined Sewers. <br />For the sake of this project, runoff hydrographs have been computed to verify the <br />contribution from the project and to verify the adequacy of pipe sizing. <br />9 <br />PROJECT.05780 <br />