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22. Response adequate. <br />23. Response adequate. <br />Exhibit F -Reclamation Plan Mao <br />24. The Reclamation Plan Map pond embankments are denoted as varying in grade, but contours do <br />not change. Please revise the contours to show the undulations of shallow graded slope <br />portions. Please include a north arrow, and delineate which areas are not to be vegetated. For <br />the areas not to be vegetated, specify what stabilization will be completed. <br />Exhibit G -Water Information <br />25. Please include, on the Reclamation Plan Map, the wells that are to remain in the permit area after <br />mining and reclamation are completed. Additionally, The Contingency Plan refers to wells MW-5 <br />and MW-7. MW-5 is not located on the permit maps, though there is an MW-5EP which appears <br />to be in the location shown as MW-5 on the Contingency Plan map. There is both an MW-7 and <br />an MW-7EP on the permit maps. Please clarify what wells are being referred to in the <br />contingency plan and ensure they are properly and consistently identified on the permit maps and <br />in the permit text. <br />26. Thank you for including the location of the northern boundary drainage ditch and southern <br />boundary berm. However, it is not a good idea to mix stormwater, from upgradient areas of the <br />pit, with stormwater from the mining operation that is directed to the sediment pond. Please <br />include an upland diversion berm on the north side of the northern drainage ditch that directs <br />upland drainage away from the mining operation. This is especially important given that the <br />upgradient areas are potentially contaminated on the surface. Additionally, please explain why a <br />2 foot berm is necessary along the south permit boundary when this boundary is already built up <br />with a much larger perimeter berm with a road on it. <br />27. Response adequate. <br />28. Response adequate. <br />29. Response adequate. However, the permit must be revised to indicate that the operator will <br />submit documentation that the trenches and sediment pond have tested "clean", and receive <br />DMG approval of that documentation, prior to dewatering the pit into these structures. <br />30. Response adequate. However, a small spillway should be incorporated into the west side of the <br />sediment pond so that any pump shutoff sensor malfunction will not result in an inadvertent <br />discharge, but would just recycle the overflow back into the pit. <br />31. The NPDES permit, though it is in the landowner's name, indicates that it is specific to the gravel <br />mining operation. If this is the case, and the permit will be terminated when mining and <br />reclamation are complete, then the riprap apron to be constructed at ouffall 001 must be included <br />in this permit. In this case; an amendment to this application must be filed to incorporate the <br />apron into the affected area. All notices will need to be re-delivered and/or republished and all <br />review timeframes will begin anew. If this permit can be used by the landowner, for operations <br />other than the gravel mining operation, then the apron is considered to be the landowner's and <br />will not be required to be included in this reclamation permit. <br />