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C C'Fy Ol iiV1:RE11"T - ialI4'j:GE PI.AIJ SIM% TT SION '`'L h4 L (� <br />Mii',IL OF AL'PLf(h'a C':- K1 <br />nP_—Nl ['-Caule�AnmP•• Tr L I <br />ADDRESS OF ia' •LM.Mv f:- 7(124 Fv-rirreen Way _ <br />Everett. Washi rigtnn 0?03 <br />SUB:AIT ZD ]IY:- <br />PROPERTY <br />e <br />ZONING OF SC`lis:- R-3 AREA OF SIT;.:- 0.5 acres <br />ARIA OF CONTRIBUT.MG CATCMENT:- <br />RUT.OFF COEFFIC:,Q%T:- See attached table of Runoff Coefficients <br />PU-DEVFLO11W.NT 0.4 <br />POST DEVELOP;•Z:NT 0.9 <br />DESIG11 STOMA:- City of Everett area <br />ME-DEVELOPDAli T Fl?Egl]I:NCv <br />1 In 10 years <br />P03T DE' F.LOPMENT FRho TJEN(:v <br />T i n 12years <br />DURATION <br />n min. <br />INTENSI'!LY <br />1.3 in/hr <br />TOTi.L DESIGN RUNOFF WHOM SITE:- <br />]ILFORI: D-,WELO)5`,NCT <br />_ 312 <br />c. <br />feet. <br />AF'M;R DEVELOPIAEN`.!' <br />802 <br />c. <br />,feet <br />RU iOFF DIFFERENTIAL:- <br />49(1 <br />0. <br />feet <br />ADDITIONAL STORAGE DUi TO LA('. TUlE:- <br />31 <br />c, <br />feet <br />La); time = 4 min. (:tee overland flow time chart) <br />DETENTION STORAGE PROPOSED:- (p.13 cts)(240 see) <br />'?7 <br />c. <br />feet <br />ORIFICE OM, 4 Q1G:- <br />D WYE TER 1 3i 4" inches <br />DISCRARGE n.27— cubic feet, <br />per second <br />HEAD 171feet, <br />OUTLET P1T';?:- <br />DIA14ETF,R F, inches <br />SLOPE in feet par hundred feet <br />CAPACITY 2 cubic feat per second <br />SIGNATURE OF Al IPLICAI�T:- DgPE:- <br />DEPAIIM214T OF PIMLIC WORKS APPROVAL i'I41] Eo. <br />"-,ON SITE DE'1"IFMON REQ]]IREh1ENTS:- YC. feet <br />Bi�z� Y% O <br />DRAINAGE PLf10 APPROVED BY:- CLNIk OL/U,ERS <br />