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• <br /> <br /> <br />~~ <br />~~ <br />~~ <br />~~ <br />TUTTLE APPLECATE RINDAHL, INC. <br />Consultants for Land and Resource Development <br />August 22, 1985 <br />Ms. Anne Baldridge, Reclamation Specialist <br />Mined Lend Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />Re: M & G Pit; File No. M-86-079 <br />Deer Anne: <br />~~~~~~ <br />AUG 2 5 1986 <br />RiIFdCi~ L~+~;t; tiki;u~r~,ti3t~t <br />Colo. Dept. of Matu~al HCSGUCCE~ <br />We have reviewed your adequacy letter and can provide you with <br />the following information. Our responses ere numbered in the <br />same order as your questions. <br />1. The ranch disposal area was a site used to store old baling <br />wire from a previous feedlot operation. It is not in the <br />affected area and will not be moved by the operator. The <br />property owner will be responsible for cleaning this up at <br />some time in the future. <br />2. Whenever groundwater conditions exist that cause a rise in <br />the lake water surface, the operation will have a discharge. <br />The amount and duration of this discharge will vary <br />depending on the seasonal fluctuations of the groundwater <br />table. There is a possibility that wells in the area could <br />draw down the water table to the point where it never <br />discharges. We do not expect Phase 3 to discharge. Water <br />in this area is expected to percolate through the alluvium. <br />We plan to use the existing borrow ditch and culvert under <br />Brighton Road. The mining plan map has been modified to <br />show how the discharge will enter the next pit. <br />3. We will present an agreement to you as soon as it has been <br />finalized. The NPDES permit has been applied for and will <br />be sent to the MLRD once it is received. The operator of <br />the other pit has indicated they will allow this discharge <br />to occur. As we discussed, the other operator does not need <br />to amend their mining plan. <br />4. A 24 inch culvert will be placed under the access road in <br />Phase 1. This has more than adequate capacity to handle <br />discharges and is sized more for maintenance concerns than <br />capacity. <br />5. The mining plan calls for mining to a 1:1 slope and <br />backfilling to a 3:1 slope. The material is tightly packed <br />and should have an angle of repose greater than the mined <br />slope. We do not expect any problems with stability. The <br />buildings served by this access road are the residence of <br />the property owner. <br />