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�r <br />DEPARTMENT OF <br />ECOLOGY <br />11 �1�"11 <br />24" min. <br />Trench X-Section <br />slope <br />Plan View of Roof <br />to road <br />drainage system <br />x 10' <br />vel trench <br />/perf pipe <br />NOT TO SCALE <br />Perforated Stub -Out Connection <br />Revised June 2016 <br />Please see http://www.ecy.wa.govlcopyright.html for copyright notice including permissions, <br />limitation of liability, and disclaimer. <br />State of Washington <br />