Option A features a containment area constructed from six straw bales wrapped in four-mil black visqueen, anchored with soil berms. Option B includes an excavated concrete washout pit with a ten-foot by ten-foot minimum washout area and a three-foot minimum depth. Both options include a designated concrete wash area sign measuring eighteen by twenty-four inches on a post. Construction notes require accessible placement for concrete trucks, proper plastic lining, and disposal of waste at the end of construction.
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