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approved by your agency accommodate HS Resource's rights or be contingent upon the execution of a surface <br />use agreement between the applicant and HS Resources." <br />(Dustin M. Ammons-DAMS GRAHAM& STUBBS, LLP representing HS Resources, Inc.; February I5, 200/) <br />Response- Platte Sand & Gravel will not cross buried gaslines or use roads with gaslines under them as haul <br />routes until copies of the signed working agreements are submitted to the Division. In lieu of an agreement, the <br />applicant may submit crossing and road designs showing how the gaslines will be protected. The applicant has <br />provided adequate setback distances to ensure the structures are protected. The applicant will obtain an <br />agreement from the owner of the structure if mining is to occur closer than the approved mining setback <br />distance. <br />Aoglication Exhibit S -Permanent Man-Made Structures: <br />21. "Historical significance of the Fort St. Vrain area in the midst of the mining area. Indian burial grounds have been <br />rumored to be in the area." <br />(Michael J Ptasnik; February 7, 2001) <br />Response- Platte Sand & Gravel will not mine closer than 222 feet from the Historical Monument, and will work <br />with the Platteville Historical Society to preserve as much of the area as possible. A letter from the Platteville <br />Historical Society dated February 16, 2001 states that the site will be preserved. In addition, the Platteville <br />Historical Society studied sites SWL087 and SW814 and determined that the mining set backs are sufficient to <br />protect the sites and the road leading into the sites. <br />22. "Two historical sites are located on the property. The applicant does not address any detailed plan of <br />protection/mitigationfor these sites. Appropriate protection for the original site must be outlined in the mine permit <br />application." <br />(Scott, Brochard. Depratt, Odenbaugh, Reinick & Rippe; February 14, 2001) <br />Response- Platte Sand & Gravel will not mine closer than 222 feet from the Historical Monument, and will work <br />with the Platteville Historical Society to preserve as much of the area as possible. A letter from the Platteville <br />Historical Society dated February 16, 2001 states that the site will be preserved. In addition, the Platteville <br />Historical Society studied sites SWL087 and SW814 and determined that the mining set backs are sufficient to <br />protect the sites and the road leading into the sites. <br />ISSUES RAISED AFTER THE INITL4L COMMENT PERIOD <br />(During [he Informal Conference Commen[ Period) <br />23. "Regional hydrologic impact analysis prepared by Leaf Engineering. Analysis prepared by Leaf Engineering states <br />that the production from each well owned by Mr. Ptasnik will be decreased, and in some instances, surging will <br />result (10 irrigation wells and two domestic wells)." <br />(Michael Ptasnik; March 9, 2001) <br />Response- The analysis prepared by Leaf Engineeringdated February 28, 2001 is based on drawdown calculations <br />for the dry pit mining after 365 days of continuous dry mining in an average cell consisting of approximately 45 <br />acres. The result of the analysis depicts potential injury to all of Mr. Ptasnik's wells at the end of the 90-day <br />pumping period for the wells and the 365 days of continuous pit dewatering. <br />The applicant submitted a groundwater analysis prepared by Leonard Rice Consulting Water Engineers, Inc. dated <br />March 23, 2001. The report is based on a 1-acre starter pit that will be excavated below the water table to a depth <br />of 25 feet. During construction of the I-acre pit, water will be removed by pumping from the low areas where water <br />accumulates. Once the starter pit is mined, a dredge will be constructed in [he pit. Dewatering will cease, and <br />