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14802 W 44"'A�enue <br /> Golden, Colorado 80403 <br /> Office: 303-279-6611 <br /> Far: 303-279-6216 <br /> www.apc.us.com <br /> The Sign of Quality <br /> July 16, 2018 <br /> Department of Natural Resources <br /> Division of Reclamation, Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> RE: Status Report; APC Construction Co—Ralston Quarry <br /> Mr. Scott, <br /> During the week of July 91h, APC continued to monitor the slide area. None of the stakes that we have <br /> placed have shown any movement during the week. We dug several potholes and starting Monday the <br /> 9th we saw the first signs of some water migration on the site. On Wednesday the 11 th, the lowest hole <br /> had collected one-foot of water. Water is also starting to leach out of the bottom into the existing <br /> draw. We dug these potholes in order to try to isolate any water moving through the site. It is our <br /> intent to fonnulate a plan to channel this water if we find it has a consistent flow pattern. We have <br /> included two photos showing the water in the collected areas. <br /> On Thursday July 121h, Pinyon was on site with their drone. The area was flown in order to calculate <br /> the slide area and this information should be available by our next report. <br /> On Monday July 161h we met with a second engineering company to evaluate the site. They reviewed <br /> the site and will be working on an approach for remediation. <br /> Please feel free to call if you have any questions, 303-434-1668. <br /> Thanks, <br /> Stanley C. Oppennan <br /> Vice President—Operations <br /> APC Construction Co., LLC <br /> I <br /> A c , <br /> NAPA l� ' <br />