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� <br />n <br />� <br />n`,•, <br />HAGGENS,INC. <br />STORM DRAINAGE CALCULATIONS <br />Project No. 1254 <br />October 18, 1983 <br />Prepared By: <br />Wayne Gibbens, P.E. <br />BARCHAUSEN CONSULTING ENGINEERS,INC. <br />6625 South 190th, #102 <br />Kent, Washington 98032 <br />(206) 872-5522 <br />�v/�" <br />