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PERMIT#:M-1980-252 <br /> INSPECTOR'S INITIALS:MAC <br /> INSPECTION DATE:May 28,2014 <br /> OBSERVATIONS <br /> The inspection was conducted with Michael Cunningham of the Division of Reclamation, Mining and Safety <br /> (Division).Jim Cherrington was present on behalf of Park County Road and Bridge Department. The Jefferson <br /> Flat Pit is located 1 mile north of Jefferson, Colorado on County Road 35 in Park County. The site is permitted <br /> for 14.5 acres and the post-mining land use is rangeland.The commodity of interest at the Jefferson Flat Pit is <br /> sand and gravel. The inspection was conducted as part of the Division's regular monitoring program. <br /> The Jefferson Flat Pit was not active at the time of the inspection. The site operates intermittently due to <br /> elevation and snow cover; the site became accessible several weeks prior to the inspection. The permit sign <br /> was posted at the site entrance as required by Rule 3.1.12. The Division was able to find the corner markers of <br /> the affected area on the west and south side of the site; however,the Division could not locate the corner <br /> markers along the east side of the site. Pursuant to Rule 3.1.12,the boundaries of the affected area are to be <br /> marked by monuments that are clearly visible.The lack of visible boundary markers on the east side of the <br /> site has been cited as a problem and will require corrective action by the Operator; please see the first page <br /> of this report for additional information. <br /> The existing pit is approximately 13 acres in size and the pit slopes have been graded to 3H:1V or flatter. <br /> According to the 2014 Annual Report, the last time the operator was in engaged in mining, processing, or <br /> hauling of material was on August 15, 2010. Pursuant to Rule 3.1.3, all reclamation shall be completed within 5 <br /> years from the date that mining ceases. Therefore, if the Operator does not immediately resume mining <br /> activities, the Jefferson Flat Pit will need to be fully reclaimed by August 2015. The footprint of the pit has <br /> nearly reached the extent of the permit boundary. As such, the Operator should take care to not disturb any <br /> land outside of the permit boundary. <br /> The Division observed approximately 6 to 8 inches of water on the pit floor. The Division has observed water in <br /> the pit during previous inspection and made the determination that groundwater was being exposed in the <br /> pit. The Operator was required to obtain a well permit and temporary substitute water supply plan or backfill <br /> the pit to eliminate exposed groundwater. In email correspondence dated August 1, 2008,the Operator <br /> agreed to cover the exposed groundwater. However, there is no documentation in the permit file which <br /> demonstrates that the Operator successfully eliminated the exposed groundwater. The site is located <br /> immediately to the west of Jefferson Creek and the pit floor is at a similar elevation to the creek. Based on <br /> past problems with exposed groundwater as well as the proximity to Jefferson Creek, the Division has reason <br /> to believe that groundwater is being exposed on the pit floor.The Division did not observe hydrophytic <br /> vegetation which would have been indicative of a prolonged presence of water at the site. Prior to making a <br /> final determination,the Division will schedule a follow-up inspection to see if there is still water in the pit. <br /> The Operator has stockpiled product along the east side of the pit;the stockpile covers approximately 0.5 <br /> acres. On the east side of the product stockpile, the Division observed a pile of debris which included wood, <br /> scrap metal, appliances and corrugated metal pipes. The presence of the refuse has been cited as a problem <br /> and will require corrective action by the Operator; please see the first page of this report for additional <br /> information. <br /> This concluded the inspection. <br /> Page 2 of 4 <br />