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(Page 2) <br />MINE ID # OR PROSPECTING ID # M-2000-158 <br />INSPECTION DATE 07/07/04 INSPECTOR'S INITIALS ESC <br />OHSBRVATIONS <br />This was a pre-operation inspection of the S&H Pit, File No. M-2000-158 conducted by Erica <br />Crosby of the Colorado Division of Minerals & Geology. Steven O'Brian of Environment Inc. <br />was present during the inspection. <br />Platte Sand & Gravel LLC. filed a complete 112 Construction Materials Amendment Application <br />(AM-O1) with the Division on May 24, 2004. To date, seven objections to the application have <br />been filed by interested parties. This matter is set to go before the Mined Land Reclamation <br />Board (MLRB) at the August 24-25, 2004 Hearing. <br />The mine site is located approximately 2.5 miles northwest of Platteville in Weld County, <br />Colorado. The purpose of the Amendment is to change the postmining land use on Sharkey's <br />Lake and Longhorn Lake to Developed Water Resources with the installation of a slurry wall. <br />Along the river corridor, the area will remain as Wildlife habitat. In addition, the site <br />will be dry mined once the slurry wall has been installed. The first area to be lined is the <br />Longhorn Lake. A bentonite slurry wall will be installed using trackhoes and keyed in 3 feet <br />to the shale. Once mining is complete at the Longhorn Lake, a slurry wall will be installed <br />around Sharkey's Lake and tied into the Longhorn Lake slurry wall. <br />No mining was taking place in the Longhorn or Sharkey's Lake areas. Mining has taken place <br />at the site in the production area and the bluffs. Approximately y, acre pit has exposed <br />groundwater, but no pumping of the groundwater was taking place during the inspection. 12 <br />new gas/oil wells have been drilled since the permit was issued on 8-10-2001. In addition, <br />new gas lines have been installed. The operator will need to address impacts to all new <br />wells drilled and existing gas lines in regard to the installation of the slurry wall. The <br />map will need to clearly depict all gas lines and wells within the germit area. <br />I & 8 Contact Address <br /> ^ CE <br />NAME Rocky Hoffachneider ^ BL <br />OPERATOR Platte Sand & Gravel LLC. ^ FS <br />STREET P.O. Bax 180 ^ HW <br />CITY/STATE/ZIP Littleton, Colorado 80106 ^ HM4IMD (CH) <br /> ^ SE <br /> ^ WQCD (CH) <br />cc: Carl Mount; DMG (via a-mail) <br /> Steven O'Brian; Environment, Inc. <br />