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10. The dimensions will be as shown on Exhibit E—Mining Plan Map. The pit limits <br /> are rectangular in shape with leg lengths of approximately 550 feet long and 390 <br /> feet wide for an affected area of 5.0 acres within the excavated area. <br /> 11. Water will be used within the pit will be for dust control only. The source of this <br /> water will be from the City of Lamar. Total usage will be approximately 1 acre- <br /> foot. We have a lease in with the City of Lamar waiting on the Mayors Signature <br /> which should be the end of April. <br /> 12. A storm water management plan will be filed with the Colorado Department of <br /> Health to maintain the hydrologic balance. <br /> 13. This excavation is into virgin ground. It is not anticipated that any foreign <br /> materials will be encountered. If some were encountered, they would be disposed <br /> of in a manner to prevent unsightliness and protect the drainage system from <br /> pollution, as determined for the specific material. <br /> 14. Since the before and after use of the land is rangeland, minimal change will result <br /> to the hydrologic balance, no off-site damage will occur and the slopes and other <br /> general configuration of the land will be more stable for the current and reclaimed <br /> use due to elimination of existing erosion (caused by normal natural wind and <br /> water action over time) in the stable, steeper than 4:1 slopes. No standing water <br /> will be retained longer than 24 hours. In addition, the excavated area will be <br /> mulched to eliminate topsoil erosion. <br /> 15. Excavation will be kept above the known ground water elevation since the mining <br /> will be done out of the side of a hill therefore the operation will not require any <br /> type of dewatering. <br /> 16. This property is fairly flat with slopes facing East on the East side of the mining <br /> area. It is the intent to excavate the property so as not to allow any runoff from <br /> excavated area and not intersect any natural drainage ways. Adequate temporary <br /> berms (as shown on Exhibit E—Mining Plan Map), will be performed on the <br /> north and west sides of the mining areas to insure runoff water will be contained <br /> in the pit floor. The pit floor material is granular and water will percolate into the <br /> pit floor. Should it become necessary silt fences will be used as required along <br /> with berm maintenance. Runoff from water outside the excavation area, if <br /> necessary, will be diverted to its normal runoff pattern. <br /> 17. The operation will not affect any Colorado water laws or regulations governing <br /> injury to existing water rights. No ponds will remain to evaporate water, nor will <br /> any water course be interrupted. No change in the runoff pattern will result. <br /> 18. No explosives will be required in the mining operation. <br />