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<br />-7- <br /> <br />2.05.3(4) Page 5-13(7) "The Sediment Control Plan ... works only if <br />(cont.) pit storage is available." Currently, pit storage is not <br />available. Does this imply the installed sediment control <br />system is inadequate to handle current conditions? <br />Page 5-14(3) drainage from topsoil piles 2, 3, and 5 do <br />not pass through a sediment pond. This implies these <br />areas are small area exemptions, yet there is no <br />supporting calculations/documentation to indicate runoff <br />does not exceed effluent limitations. <br />Either the demonstrations that effluent limitations will <br />be met must be made or the piles must be included into the <br />sediment control plan. <br />2.05.3(6) Oakridge Energy, Inc. plans to conduct a pre-mining survey <br />to establish horizontal and vertical control for the pit <br />area. When will this be accomplished in terms of the <br />operations plan? <br />Page 5-17(2) the statement that "the need for a designed <br />underdrain is not applicable" is false. In fact a <br />certified design with pictures showing the construction of <br />the underdrain is required per Rules 4.10.3 and 4.10.4. <br />2.05.3(6)(b) Page 5-20(1) four foot lifts in reality do not compact. <br />The Division strongly recommends lifts of no more than <br />2 feet and preferably 1 foot. <br />