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2x12 rough <br />wood frame <br />r� <br />DEPARTMENT OF <br />ECOLOGY <br />State of Washington <br />Figure 11-4.1.7a Concrete Washout Area <br />Lath and flagging <br />on 3 sides <br />Sandbag <br />3erm <br />10 mil plastic lining <br />A t <br />1m <br />_ ..... �.__.._ lining <br />Plan <br />Sandbag <br />— Berm <br />Section A -A <br />Notes: <br />1. Actual layout <br />determined in the field. <br />Type "Below Grade" 2. A concrete washout <br />sign shall be installed <br />within 10 III of the <br />temporary concrete <br />washout facility. <br />Wood frame <br />securely fastened <br />around entire <br />perimeter with two <br />stakes <br />10 mil <br />f plastic lining <br />Stake (typ.) <br />iil plastic lining <br />Plan <br />Type "Above Grade" with Wood Planks <br />NOT TO SCALE <br />Figure II-4.1.7a <br />Concrete Washout Area <br />Revised June 2015 <br />Please see http.'#www.ecy.wa.gov/copyright.html for copyright notice including permissions, <br />limitation of liability, and disclaimer. <br />2014 Stormwater Management Manual for Westem Washington <br />Volume 11 - Chapter 4 - Page 322 <br />