Laserfiche WebLink
I <br /> Verizon Communications-Stormwater Site Plan Everett, WA <br /> I <br /> Ponding Depth <br /> 1 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 /> I <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 /> 1 would provide increased storage volume. <br /> WWHM Model <br /> IWestern Washington Hydrology Model <br /> PROJECT REPORT <br /> 1 Project Name: Verizon <br /> Site Address: West Casino Rd <br /> I City Everett, WA <br /> Report Date : 11/12/2009 <br /> Gage Everett <br /> Data Start 1948/10/01 <br /> I <br /> Data End : 1997/09/30 <br /> Precip Scale: 1 . 00 <br /> WWHM3 Version: <br /> � •„_•, Site In <br /> format <br /> , r, <br /> t3 s .. <br /> /II 77kr.h iI•: <br /> 1 Y_. ,2: <br /> t t/l.F �� II <br /> :,1 Site Verizon <br /> r n� 1 ' „ " Address West Casino E'd <br /> 1 1 - °� <br /> , i ,3 , City Everett, WA, <br /> yT L. �C_� ;` ck \. Gage Everett <br /> I <br /> — ` �.=in ,1 1- 1Pa k, Precip Factor 1.000 <br /> µ <br /> I <br /> 7 n, r . cjrilk, , r 0 Use DOT data <br /> , .7-,>.- ---4...\\ ' . 4--\._\f,21- . .-..-1"';,Vr ..." . <br /> 'I.G.--'2--\\.-ft)- 4'.(. 14<1' ':'/.14 '-.4. <br /> _ , • F) , ,, <br /> �� L_I . <br /> I <br /> I <br /> IPACLAN D Job# 50183001 Page 14 <br />