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f �� <br />r <br />I <br />�_ <br />-- ' -- � .-•-•:-: . � �•: �Y'n .. <br />6�� , .` �.. , • .ii" 'v �'�C V � .,:: <br />n.n/aM7i �� F� ^�s7�w . . .r'i ' :E, . �'w �y- �� <br />W���.y� ��,y��� � <br />1. R� tt��f�t�MRi Wbr�WfR.� �s a �. fY ••i� Rr'�f: <br />�' � � - �aNl�r��) :�ON�.i� �r'^la,,'�+•~�;�'�'r- .��::' <br />� �� � ������1��:"S�4^�'.`�i� r.,� �. ...,,� <br />2. �Q ��� N''�O�T�) wr CkY of• Ev�cc aita�it tar boeh d�wlop� ��t,,,; <br />3. Set Tmstment Pond Oulet t)rif(a at 1' trdn. ' :°_ �,i:M .; <br />4. Route 2 year stortn tluu Treatn�eM Pbnd( 8K2T thu 8KTp5) to s�t=po� �y�. `. <br />S. S�t �r .Iwatbn h trsst�t pond m m�t .kvaria, of 2-,,wr.sto,;,,. <br />6. Routa 10 d� 100 yea� stam� Uw cre.hrNnr ;,;,�d, lbe m�rtrriwn � far oontrol <br />riser ekvsdon In oontroqed outlet msn�hole. <br />7.Splitt �iser flow from i 6 hydr�rap{�s, � <br />8. Set PiPe � P� .d�menter by avaiabb space. Estinate pipe knp�h by <br />cakubtiaa of pipe ar�ea 6 hyndro�raPh v�ne. . <br />9. Subtrxt Tmatn�ent Pbnd oriBce outHow from undeveloped 1 Q de 100 year <br />flows to dewrmine ma�dmum flow Sor Piped Stor�ga Conudlad outlet. <br />10. Routa ris� hydrngnpd�s(#�� to size oriflces ot piped sta'a�e oontrol outlet (PSCI ). <br />11. Incr�eaae piPe+ knght bY 509i ta rt�t WADFbW storage criteria. .. <br />12. Rerun 10 d� 100 year o�rerfbw hYdmgnPf►s to pla�late rsvited staage staDe <br />and psak dischuye r�te. <br />13. ndd r�yndogr�p�s rrom �t 1 and ortfice tydrog►tiph rrom cna treaaner,c stor,ge pond to <br />obtoin hy�kograPh at �rge point. <br />' I 14. Yo determine piPed non�e for ach devefo�xrxM, Pr'oPa� Lo impervious area. <br />L Burger King 1.04 ac., Les SchMnb 0.783 ac thereforo 1.04/9.783•57% tor Butper King <br />and 43% for Les Scln�rab. <br />15. i'o determine initi�l orifice size for Burger King if Les Schwab is not developed, <br />a) reduce pipe sconge to 57% b) add hydrogr�phs gK1 pT + LSt10 d�BICT100 + LSt100 <br />� to obtaln new 10 & 1�0 year hYdro9nPhs� a) check orifloe in s�p � 10. <br />l <br />[� <br />C <br />[ <br />C <br />I' Project Number: 96-016/18 <br />Date: January 1996 <br />. BY• TbMC <br />rwo !titve„ Enatr,se�y� : <br />P. 0. Box 339 .� . . . . . <br />Darrigtan,WA 98241'' <br />(360}43G-1524 � <br />2af2. <br />4 <br />.. Y:M1[/+� i.��L.f::J` tl :iXL. :%L_)i�Q'.� �� .. . <br />; .� <br />