2004-08-02_REVISION - M2000158 (3)

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ENVIRONMENT, INC. PACE 7 AU6US7 2, 2004 storage reservoirs around the country. We do not believe outside critique of the slurry wall design and construction is necessary. ----------------------------------------------------------------- The Prairie Farm - Bruce Rippe Mr. Rippe's home and property is located approximately 7,920 feet southeast of the closest slurry wall and he does not own property within 200 feet of the permit boundary. • Discussed in responses above and addressed in the original permitting process. • Nothing has changed in the permit that would suggest any degradation of the environment due to surface run-on, run-off, discharge and goals and expectations. The Stormwater Manage- ment Plan is still in effect and we have the necessary permits to discharge any water associated with the mining operation. • in the original permit it was determined that there were no jurisdictional wetland on the mine site. Please refer to the letter dated 4/1/2001 from Mr. Timothy T. Carey of the US Army Corps of Engineers. • No changes are needed, the reservoirs are in the same areas covered by the gravel lakes of the same name. No changes were made to the commitment for the wildlife buffer and the wild- life habitat we planned to leave originally is unchanged. • Addressed in item 9 of the staff review. • This is covered in approved Temporary Substitute Supply Plan approved by the Office of the State Engineer for those area outside the proposed reservoir areas. Reservoir areas do not need augmentation plans since there is no impact to the groundwater system if water evaporates from a reservoir. • Gravel mines do not generate chemicals and the by-products are usually fine materials left when the gravel is processed. This all natural material is retained on site and used for reclamation if it can not be sold. • We concur with this assessment. They might even be used to store water for agricultural needs as well. • This has been addressed in pervious correspondence. The town site associated with the monument is located on maps in the Colorado Historical Society Office records. The town bound- ary does not lie within the reservoir areas and was located on the raised ground above the river bottom. We have an agree- ment to protect the site with the Platteville Historical Society and have installed a fence to protect the monument. The monument site is located on the maps and is not 450 feet from the closest slurry wall and 35 feet higher. • Mr. Sharkey and Ms. McCoy are the principal land, oil and gas owners of the property. At no time have the oil & gas produc- ers been denied the right to enter and explore for oil & gas.