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r <br />CITY OF EVERETT - DRAINAGE PLAN SUAMISSION <br />NAME OF APPLICANT:- Evergreen Management Co. <br />ADDRESS OF APPLICANT:- 2000 - 124th Ave. N.E., Bldg. B-101 <br />Bellewe, Wa. 98005 <br />SUBMITTED BY:- <br />PROPEATY LOCATION:- <br />ZONING OF SITE:- <br />Lovell-Sauerland and Associates, Inc. <br />West of Evergreen Way on north side of 100th St. S. <br />AREA OF CONTRIBUTING CATCHMENT:- <br />AREA OF SITE:- 4.21 Acres <br />4.2 Acres <br />RUNOFF COEFFICIENT:- <br />PRE-DEVELOPMEN? 0.2 <br />POST DEVELOPp�NT 0.77 <br />DESIGN STORM:- PRE-DEVELOPMENT FRE�UENCY i in 10 years <br />POST LEVELOPMENT FREQUENCY 1 in 10 years <br />DURATION 2U min. <br />INTENSITY 1.3 <br />TOTAL DESIGN RUNOFF FROM SITE:- Basin 1(En57) <br />BEFORE DEVELOPMFNT 663 c. feet <br />AFTER DEVELOPMENT 2553 c. feet <br />AUNOFF DIFFERENTIAL:- <br />ADDITIONAL STORAGE DUE TO LAG TIME:- <br />DETENTION STORAGE PROPOSED:- TOTAL <br />ORIFICE OPENING:- <br />OUTLET ?IPE:- <br />DIAMETER 3-3/8 <br />DISCHAAGE 0.55 <br />HEAD 3.12 <br />DIAMETER 12 <br />SLOFE .-0,� U,"''� <br />CAPACITY 1.5 <br />SIGNATURE OF APPLZCANT:- <br />DEPARTMENT OF PUBLIC WORKS .4PPROVAL <br />ON SITE DETENTION REQUIREMENTS:- <br />1890 r, feet <br />83 c. feet <br />2167 c. feet <br />Basin 2 (wE9T� <br />651 c. feet <br />2512 c. fcet <br />1861 c. feet <br />82 c, feet <br />2171 c. feet <br />inches 3-1/2 inches <br />cubic fe•�t per se�ond 0.52 cubic ft./sec. <br />feet 3.71 feet <br />inches 12 inches <br />feet/foot ' 0.5 feet/foot <br />cubic feet per second 1.5 cubic ft:./second <br />DATE:- <br />PLAN NG. � — % / <br />c. feet <br />DRAINAGE PLAN APPROVED BY:- <br />KJ�' '/��tlits'/.cav/ /� .�D g <br />.��.� � � !'f i. S, n^ <br />.� �� � f��.� r <br />� <br />