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MINE ID # OR PROSPECTING ID#: M-2003-016 PAGE: 3 <br />INSPECTION DATE: 3-14-08 INSPECTOR'S INITIALS: ACS <br />buildings on the property, and the current bond includes estimated <br />costs for the demolition of the buildings. Now, all of the buildings <br />have been demolished and removed, and the amount of required bond will <br />be reduced accordingly. <br />Slurry Wall <br />Construction of the slurry wall was completed in 2007. The slurry wall <br />construction report was provided to DRMS with the Revision SR-O1 <br />application in January 2008, and it has been determined that the Heit <br />Pit slurry wall is eligible for the 20 percent replacement cost bonding <br />option under standing DRMS policy. The slurry wall is covered by a <br />compacted soil cap that is elevated above surrounding grade, <br />effectively berming the entire pit perimeter. <br />Storm Water <br />Since the slurry wall cap provides storm water containment, the only <br />impacted storm water runoff that could reach surface streams is from <br />the strip of disturbed ground outside the slurry wall cap that <br />surrounds the entire perimeter. This strip of land was thoroughly <br />inspected, and it was determined that the one area with any significant <br />potential for detrimental runoff is at the northwest corner of the <br />slurry wall and adjacent to Little Dry Creek. Corrective actions <br />related to PB-2 listed on page four of this report will prevent <br />impacts. DRMS suggests that the Operator seed the area outside the <br />slurry wall this spring if possible, but since the ideal spring seeding <br />window will be ending in April, spring seeding will not be made a <br />requirement. Seeding outside the slurry wall will be required in the <br />autumn 2008 seeding window if spring seeding does not occur. Since <br />storm water management was a focus of this inspection, the Water <br />Quality Control Division is being copied this report. <br />Bond Amount <br />The DRMS will use the information gathered during this inspection and <br />contained in the permit file to estimate current reclamation costs for <br />the Heit Pit. The estimate will be used to establish the amount of <br />required bond and will be transmitted with the forthcoming approval of <br />revision SR-Ol. <br />cc: Carl Mount, DRMS (via email) <br />Andy Rodriguez, Civil Resources (via email) <br />Wayne Brantley, Pioneer Sand (via email) <br />Kathy Novosad,' Hall-Irwin Corp. (via email) <br />Inspection & Enforcement Contact Address <br />NAME Jon Benallo <br />OPERATOR SW Chambers, LLC <br />STREET 333 West Hampden Ave., Ste. 810 <br />CITY/STATE/ZIP Englewood, CO 80110 <br />