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Verizon Communications-Stormwater Site Plan Everett, WA <br /> Ponding Depth <br /> The actual ponding depth in the bioretention area is one foot. However, the effective <br /> depth for modeling purposes includes the storage in the amended soil layer. Assuming <br /> 40% porosity, the effective depth of the infiltration pond in the model is increased 0.4 feet <br /> per foot of soil depth. Only the storage in the first foot of the soil has been included in the <br /> WWHM model. This is a conservative approach since additional depth of amended soil <br /> would provide increased storage volume. <br /> WWHM Model <br /> Western Washington Hydrology Model <br /> PROJECT REPORT <br /> Project Name: Verizon <br /> Site Address: West Casino Rd <br /> City Everett, WA <br /> Report Date : 11/12/2009 <br /> Gage Everett <br /> Data Start 1948/10/01 <br /> Data End 1997/09/30 <br /> Precip Scale: 1.00 <br /> WWHM3 Version: <br /> ,,t;"s Site Information <br /> i u+Air-:`. --clffeT ' , 7la 4I :' Site Verizon <br /> l,i <br /> ` Y -, I Li - Address West Casino Rd4 ��, '.iigp6 141 City Everett,WA <br /> L1'!Jl it L ?to <br /> LGage Everett <br /> ° i +". . l _ , Sri,,z,\. Precip Factor 1.000 <br /> ,pis • 111411 � .r 0 Use DOT data. <br /> `a�7s 4 fJ1/�1� N! .' �I <br /> r _.. . <br /> - 1016?AgMigKiA 61 _ 501 <br /> ._:q <br /> aril.w._m...04.._t <br /> ,,,• .A.Tor4.04,ew_i i_ uri. -_ <br /> sh ,,..0..• <br /> 1 , --,isaWilli Tirl'' '' <br /> 411ii. 4111- ge <br /> c V 414:4ii .t, sr Inotik FAV:` tr <br /> < > <br /> PACLAND Job# 50183001 Page 14 <br />