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~1 <br />U <br />Toosoil Stockpile q3 <br />Topsoil Stockpile i13 is shown on Map 12, Mine Site Water Systems and <br />Refuse Area. The base of the stockpile covers an area equal to 5,600 <br />square feet. The maximum height of the stockpile is 10.5 feet. Erosion <br />protection of the stockpile will consist of the following: <br />1. Diversion ditches will be excavated above the stockpile to keep <br />undisturbed runoff away from the soil. <br />2. A berm or runoff sump will be excavated along the toe of the <br />stockpile to detain runoff from the stockpile itself. <br />~~ <br /> <br />3. Hay will be used in the stockpile to reduce erosion. <br />457a <br />Revised - 04/13/90 <br />