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To insure that the exposed perimeter will not have any flow concentrations that could <br />compromise the conclusions of the grass filter modeling, the exposed perimeter will be observed <br />after the first few runoff events, and if any concentrated flow areas have developed, straw wattles <br />(such as American Excelsior Product 9" diameter x 25 feet or equivalent) will be placed on the <br />ground at those areas as necessary to prevent concentrations of runoff flows. <br />Exh. 7-23G-2 Revision Date: 7/31/15 <br />Revision No.: PR -04 <br />