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Rick Anderson <br />DIRECTOR <br />ADAMS COUNTY <br />43333333W-__ <br />April 13, 2011 <br />Division of Reclamation, Mining and Safety <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Parks & Community Resources Department <br />Adams County Regional Park <br />9755 Henderson Road <br />Brighton, CO 80601 <br />PHONE 303.637.8000 <br />Fax 303.637.8015 <br />www.co.adams.co.us <br />Re: 112 Annual Report - Nyholt Pit (aka Mann), Permit # M-1982-147 <br />Dear DRMS: <br />The Nyholt (aka Mann) Pit was mined for several years by Moblie Pre-Mix / Lafarge. Lafarge <br />ceased mining operations in December of 2009. Adams County Parks accepted succession of <br />operator in December of 2009 and will continue to control noxious weeds at the site, establish <br />native grasses and complete reclamation. Additionally, Adams County has been working to haul <br />off approximately 190,000 tons of already processed materials that were left on-site when <br />Lafarge ceased operations. <br />In October of 2010, Adams County contracted with a general contractor to construct an <br />interconnecting system of pipes to hydraulically connect the lakes for use as water storage. In <br />2010, the selected contractor installed armoring along all 3:1 sloped banks of Lake No. 3 (a 33 <br />foot-wide band of type `L' riprap extending approximately 6,180 linear feet). <br />In 2011, the Adams County plans to complete construction of the interconnecting pipes and <br />associated operational spillway. Armoring of Lake No.3 will be finalized as shown on the <br />attached map. A seal test with the State for the liners that were breached during the installation of <br />the interconnecting pipes will also be completed. Additionally, Adams County intends to <br />continue to haul off some of the already processed materials that have been stored on-site since <br />2009 and complete extensive irrigation and landscaping improvements which are consistent with <br />the site reclamation. <br />Enclosed is a map illustrating the armoring site work that was completed in 2010. Also, enclosed <br />is a check for $791.00 (Check 605582) to cover the annual fee for the 2010 reporting period. <br />Sincerely,,____ <br />Kurt Carlson <br />Regional Park Manager <br />Adams County Parks <br />Cc: Rick Anderson <br />Craig Tessmer <br />