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3. Erosion Control <br />• Four (4) to six (6) foot high berms are placed between the gently sloping surfaces which <br />have been reclaimed and the areas being actively mined or not yet reclaimed to prevent <br />wind erosion. In addition temporary berms aze constructed as needed by a grader to <br />divert surface runoff water. <br />Erosion control for the landfilled CKD is accomplished through the application o1'high- <br />pressure water sprays. The added moisture on the CKD forms a hazd crust, which helps <br />prevent erosion of the CKD from the wind. <br />4. Wildlife Exposure Assessment <br />The Wildlife Assessment completed by Dr. Steve Martin was submitted to the M1~RB in <br />January of 1999. <br />In addition to Dr. Martin's report an assessment by State of Colorado Division of <br />Wildlife was completed and forwazded to the MLRB and Holnam. <br />Although both reports indicate that the risk is minimal if any to wildlife, the areas are <br />inspected on a daily basis by Quarry personnel. Holnam will take under consideration <br />• installation of a chain-link fence around the ponds or other feasible means of precluding <br />any wildlife or human beings from entering the pond should such action become <br />necessary. <br />5. CKD Sampling and Analysis <br />A daily random sample of CKD is taken when the truck hauling the CKD to the dump <br />site is being loaded. This sample is analyzed for alkalis and sulfur content. Retains from <br />the daily sample aze put together to form a composite which makes up a quarterly sample, <br />which is then analyzed for Routine Oxides, Total Metals and Metals (TCLP Results <br />PPM). Up to date results for the quarterly samples are attached as Exhibit C. <br />This sampling method is a standard procedure in the handling of CKD and will amtinue <br />to be implemented in the future. This will ensure an ongoing geo-chemical evaluation on <br />the CKD and will assure that the nature of the material to be placed in the disposed azea <br />remains consistent in terms of the leachable chemical composition. <br />• <br />