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r- <br />F <br />CITY OF EVERETT <br />DEPAR' ENT OF PU3LIC WORKS <br />DR_ATNA-7 Pr -AN SUBMISSION FORM <br />(sea Ordinance 514-78) <br />NAME OF APPLICANT <br />ADDRESS OF APPLICANT <br />Robert Brokaw <br />o Wight & Hardt. Inc. <br />REVISED 3130101 <br />1AAR 3 0 1901 <br />1T <br />SUBMITTED BY Wight & Hardt, Inc. <br />PROPERTY LOCATION North side of 63rd Street between Olympic Drive <br />and Highland Drive <br />ZONING OF SITE: R-2 AREA OF SITE: 1.22 Acres <br />AREA OF CONTRIBUTING CATCHMENT: 0 Acres <br />PRE -DEVELOPMENT CONDITIONS: <br />Runoff Coefficient 0.19 <br />Time of'Concentration 18 Min. <br />Rainfall Intensity 1.36 in/hr <br />Allowable release rate 0.32 cfs <br />POST -DEVELOPMENT CONDITION: <br />Runoff Coefficient 0.56 _ <br />Design Storm 25 yr. <br />DETENTION STORAGE REQUIRED: _ 1.330 <br />ORIFICE: <br />DIAMETER 2.36 _inches <br />HEAD 4.47 feet <br />OUTLET PIPE: <br />DIAMETER 12 inches <br />SLOPE 0.005 feet per hundred feet <br />CAPACITY 2.71 cubic feet per second <br />RISER: <br />DIAMETER 12 inches HEAD 3.4 feet <br />e <br />CAPACITY 6t cubic feet per second <br />DEPARTMENT OF PUBLIC WORKS APPROVAL <br />ON SITE DETENTION REQUIREMENTS: <br />DRAI`tACE PGA%1 APPP.OVF.D RY:}? <br />1 nn �� <br />"'IF/ <br />date <br />PLPY NO. e7—81 <br />i1A TF•• ��/O% <br />c.fee= <br />. f --et <br />