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1 <br />Figure 11-4.1.2 Wheel Wash <br />3" trash pump with <br />6" sewer pipe with <br />A floats on suction hose <br />butterfly valves <br />2" schedule 40 <br />8' x 8' sump with 5' of catch <br />I <br />1 y2 " schedule 40 for sprayers <br />2% slope <br />5:1 slope <br />5:1 slope <br />midpoint spray nozzles, if needed <br />--� <br />7slope <br />�� <br />2% slope <br />1 <br />15' ATB apron protect 6" ATB construction entrance <br />A <br />ground from splashing water <br />Ball valves Asphalt curb on the low road <br />side to direct water back to pond <br />Plan View 6" sleeve under road <br />15' 15' 20' 15' 50' <br />-A Curb <br />6" sleeve <br />Elevation <br />Elevation View <br />Locate invert of top pipe 1' <br />above bottom of wheel wash <br />8' x 8' sump <br />18' <br />Water level <br />'7! <br />-ems 3' <br />5 <br />I <br />12 —�{ <br />I <br />Drain pipe 1:1 slope <br />Section A -A <br />Notes: <br />1. Build 8' x 8' sump to accomodate <br />cleaning by trackhoe. <br />NOT TO SCALE <br />Figure II-4.1.2 <br />Wheel Wash <br />DEPARTMENT OF <br />Revised June 2015 <br />ECOLOGY <br />Please see http://www.ecy.wa.gov/copyright.html for copyright notice including permissions, <br />State of Washington <br />limitation of liability, and disclaimer. <br />2014 Stormwater Management Manual for Westem Washington <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />I' <br />1 <br />1 <br />1 <br />I <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Volume 11 - Chapter 4 - Page 276 <br />r� <br />