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TETRATECH RMC Page 4 Mr. Berhan Keffelew July 27, 2004 B) The operator agrees to establish baseline water levels in all wells with in 600 feet of the permit area at lease once prior to mining. The operator has agreed to do this. C) Operator agrees to monitor monthly, all monitoring wells until mining begins and quarterly after mining begins and until reclamation is completed and the site is released from reclamation warranty. The quarterly report to be submitted to DMG, on a semi annual basis. The operator requests that they be allowed to submit the quarterly monitoring with the annual report rather than semiannually. Please let us know if this is acceptable. D) During the pre-operational inspection, we agreed that the operator will provide a ground water model, to show the probable impacts to the deep wells and the aquifer, that are being used as domestic wells. Operator also agrees to mitigate all well owners with in 6000 feet of the permit area, if cause can be shown that the operation did impact the wells. The ground water model must include probable impacts to Fulton Ditch especially during the mining operation along the East side. The operator agrees to mitigate all wells within 600 feet of the permit area, not 6000 feet as stated in your comment. The groundwater model is attached for your review. VII) EXHIBITS "H', "I", "J"AND "K'ADEQUATE Noted VIII) EXHIBIT "L "RECLAMATION COST A) In your reclamation cost, you did not include the warranty needed to remove the conveyer system under 104`h ave. In order to calculate the warranty, the Division needs the dimensions for the systems and associated parts, With out including the conveyer system, the Division has calculated a financial warranty in the amount of $398,871. The detailed calculation is enclosed with the adequacy. The conveyor system is portable and an asset of the applicant. Please refer to item III-A above.