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PERMIT #: M1978072 <br />INSPECTOR'S INITIALS: RAR <br />INSPECTION DATE: 22 September, 2021 <br />OBSERVATIONS <br />This inspection was conducted by the Colorado Division of Reclamation, Mining and Safety (The Division), <br />in response to the surety release request submitted on 4 August 2021. The site was previously inspected by <br />the Division on 28 January 2020 during a routine inspection. Jason Eager with Lincoln County accompanied <br />me, Robin Reilley, of the DRMS during the inspection. The weather was calm, and the sky was clear. <br />The Brent Pit is located on the south bank of Hell Creek, north of Arriba, and accessed through a gate off of <br />County Road 3R just east of County Road 42. The pit is a 112 operation permitted for 14.16 acres for the <br />removal of sand and gravel for county road maintenance and repair. A mine sign was observed as required <br />by Rule 3.1.12. <br />As reclamation is stated to have been completed, the site was not active at the time of inspection. All <br />material stockpiles, structures and equipment have been removed. Annual reports indicate that reclamation <br />occurred in the 2019/2020 report cycle. The Hell Creek stream bank where piping was observed in the past <br />has been stabilized with concrete block placed as riprap. There was evidence of rilling on portions of the <br />north facing slope of the former highwall. The soils in the area are silty, eolian soils and prone to visible <br />signs of wind and water erosion. Seeding took place on two occasions to mitigate a marginal response the <br />first time. Vegetation for the most part was adequately established with diverse rangeland species. Some <br />weeds were present, notably Xanthium strumarium (cockleburs), and did not pose a cause for concern. <br />Overall the site appeared stable. <br />The Division currently holds no financial warranty because it is a county operation. No problems or <br />violations were noted during this inspection. The Division finds that the pit can be released. <br />Responses to this inspection report should be directed to: Robin Reilley at the Division of Reclamation, <br />Mining and Safety, 1313 Sherman St., Room 215, Denver, CO 80203. Direct contact can be made by phone <br />at 303.866.3567 ext 8105 or, via email at robin.reilley@ state.co.us <br />PHOTOGRAPHS <br />Photo 1: Mine identification sign. <br />Page 2 of 3 <br />