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<br />• The proposed settling pond's design is adequate to hold precipitation <br />from a 10 year, twenty four hour storm. ~ <br />• <br /> <br />Only .57 acre feet of water will be diverted into the sediment pond. <br />Care has been taken to minimize disturbance of the normal Hydrologic balance in <br />both the mine plan area and the adjacent areas, therefore, preventing any <br />adverse, long term changes in the Hydrologic balance. Post-mine land use will <br />be limited to cattle grazing. The land the mine plan occupies is entirely on <br />the up-slope and sees little actual grazing. However, the location of the <br />diversion channels have been designed to minimize any adverse impact thit might <br />occur during post-mining land use of the permit area. <br />Changes in water quality will be monitored on a schedule to bG~ set in <br />accordance with regulations and as required by the Department of Health's Water <br />Quality permit. ~ <br />Disturbed areas will he stabilized by land shaping where it ii neces- <br />sary. I <br />The temporary diversions will be constructed to safely pass peak <br />run-off, as specified. Diversion ditches will be constructed of earth and will <br />be lined with country rock. <br />ANNE BALDRIGE of the MLRD has provided help in the design of the <br />emergency spillway, sediment pond, and diversion channels. These recommen- <br />I <br />dations will be followed. See attached letter. <br />When no longer needed, (during reclamations), these temporary diver- <br />sions will be refilled with original material to meet the requirements of 4.06, <br />4.14 and 9.]5. <br />As previously stated, ANNE BALDRIGE'S recommendations on sediment pond <br />design will be incorporated to meet all criteria of rule 4.05.6, and construc- <br />ted under the supervision of registered professional engineers. Certification <br />of the constructed pond will be forwarded to the Division immediately following <br />construction. <br />.j <br />