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Figure 11-3.9: Prefabricated Concrete Washout Container w/Ramp <br />r� <br />DEPARTMENT OF <br />ECOLOGY <br />State of Washington <br />NOT TO SCALE <br />Prefabricated Concrete Washout Container <br />w/Ramp <br />Revised June 2016 <br />Please see http:lAvww. ecy wa. gov/copyright. html for copyright notice including permissions, <br />limitation of liability, and disclaimer. <br />2019 Stormwater Management Manual for Western Washington <br />Volume 11 - Chapter 3 - Page 326 <br />