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., <br /> ,, ' <br /> Trepanier Engin�ring <br /> � Prolessional Civil Enginsering ; <br /> h <br /> ^� R. <br /> T :� <br /> � w 'i}: <br /> o9'z ';:; <br /> ti <br /> � <br /> DRAINAGE REPORT ��vt <br /> DWAYNE LANE �'C �1��'-G,�` . <br /> LUBE BAY ADDITION 10p�, e� <br /> 10125 EVERGREEN WAY <br /> JOB NO. 98-074 ¢xrwca 8/2100 <br /> The proposed project involves the constructi�n of a ne� <br /> service buildinq and pavinq for additional parking. <br /> The stormwater generated west of Olivia Road and south of <br /> Everett Mall Way all gees to a Regional R/D pond located <br /> south of the proposed project (s) . No Retention/Detention <br /> is planned for this project (s) . <br /> Water quality treatment will consist of a wet pond with <br /> plantinqs. The pond will be sized for the total area south <br /> of Everett Mall Way and west of Olivia Road even thouqh <br /> this project encompasses a much smaller area. <br /> ,ee attached trib�tary map and calculations for the six <br /> (6) -month storm. <br /> Dead storage of 0.22 Ac - Ft is required in a deep and <br /> shallow wet pond. <br /> 1420 Hewitt • tverett,Weshinqton 98201 • Hverott (208)259-6b6a • FAX(208)269�6568 <br />