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I <br /> Stormwater Management Report Everett, WA <br /> Olt ‘Iiii*7_4:: / .0,;07.-\\ --1,f:ri.;.- . ,.-1/41%01.' <br /> - 1 ^° +J J/ •Y ',ram ," .;: ,Y' ..• <br /> I t3{j�� jj aa' r .:, . y. <br /> {#`�.p\ ,!' / - —. '.tea fit • ,r•: <br /> +, ,� „� -� > � �� n Directly downstream of the pipe <br /> 5 . A +, � � -.ow, outlet, Narbeck Creek continues <br /> }'�►>': 1 ; . " , north through a heavily wooded <br /> '7 <br /> .--' ol• • :,-ir :4- ••'. !- ' - 4*);\:,4tr' <br /> I . <br /> ,s/ _ <br /> t - <br /> } <br /> sa, •a.. Narbeck Creek continues north to <br /> '►- r r r k• --....mice <br /> Possession Sound approximately <br /> 6 'g 4 ,r 0.8 miles downstream from the <br /> ."` �- ;� ` "i,;."- 12" HDPE pipe outflow. <br /> IThe drainage path as described above appears to have adequate capacity and no current <br /> problems or signs of damaging erosion were observed at this time. <br /> IFurther investigation is being performed by Terra Associates, Inc, the geotechnical <br /> engineer, to assess the necessary stream bank erosion control measures associated with the <br /> Ipipe outfall. <br /> Upstream Analysis <br /> I <br /> The upstream property has been developed and the runoff generated by it has been routed <br /> to the drainage system that drains to the Narbeck Creek outfall. Therefore, no upstream <br /> Irunoff is received by the subject property. <br /> IPACLAND job# 50108001 Page 9 <br />