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r <br />1� <br />r. <br />� <br />NAASE OF TPPLICANT <br />DEPARTMENT OP PUDLIC WORKS <br />DRAINAGE PLAN SUHMISSZON FORM <br />(see Ordinance 514-78) <br />Chuck Burcress <br />�' ) f <br />�� �'"�� r <br />ADDRESS OF APPLICANT 2800 Rainier Bank <br />1301 Fifth Ave., Seattle, Wa. 98101 <br />SUBMITTED BY <br />PROPERTY LOCATION <br />Atelje 2 / Architects, AIA <br />3114 Hewitt <br />Everett, Wa. <br />ZONING OF SITE: C-2 <br />AREA OF SITE: 15,000 SF <br />AREA UF CONTRIBUTING CATCHMENT: 15,000 SF <br />PkE-DEVELOPMENT CONDITIONS: <br />Run-off coefficient: .86 <br />Time of Concentration: 10.5 minutes <br />Rainfall intensity: .1.8 in./hr. <br />Allowable Release Rate: ,53 cfs <br />POST-DEVELOPMENT CONDITION: <br />Run-off Coefficient: <br />Design Storm: <br />DETENTION STORAGE REQUIRED: <br />ORFICE: Diameter: 3.5 <br />Head: 2 <br />.�� <br />25 Yr• . /1 0 T''� <br />`" � <br />70 � '�� v cf <br />inches r�'�` ' <br />feet <br />OUTLET PIPE: Diameter: 6 inches ��.r �(F� <br />Slope: 2.5 feet per hundred feet <br />Capacity: 1.0 cubic feet per second <br />RISER: Diameter: 6 inches <br />Capacity: 1.0 cfs <br />.a1"L=�,.1� ?� <br />''i58-'a:%'a <br />ON-SITE DETENTION REQUIREMENT: <br />DRAINAGE PLAN APPROVED BY: <br />PLAN N0. <br />� z t <br />Date <br />Date <br />cf <br />� <br />.i <br />�� <br />