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(Page 3) <br />A question about how the mine pool level is measured and sampled was posed to the Cotter representatives on <br />site. It was reported that it is through the Steve Adit via a pipe for sample collection and a real time transducer for <br />the mine pool levels. In addition, it was reported that the mine pool had been accessed through the Sunshine <br />Ventilation Shaft earlier this summer in order to conduct a depth profile analysis of the mine pool contaminants to <br />a depth of 800 feet. Results apparently indicated little difference in uranium concentrations throughout the depth <br />and ranged from 30 to 34 ppm. The Division is hereby requesting a copy of the results of this mine pool analysis <br />to be submitted with the aforementioned spill report. The Division also requests that future routine mine pool <br />water quality measurements be included in the periodic water quality reporting to the Division. <br />The operator is also reminded that the ground water quality analytical results must be provided to the Division as <br />part of the routine reporting of surface water quality monitoring. To date, the Division has not received any <br />ground water quality data since the revised Environmental Protection Plan was submitted in July 2010. The most <br />recent ground water monitoring data that the Division has received is from the May 2010 sampling event. The <br />Division is requesting that the operator provide all ground water quality data collected since that date. This is cited <br />as a problem under item 2 on page 4 of this report and must be resolved within 30 days of the date of this report. <br />An additional problem is that the the operator still has not submitted the spill report that was requested for the <br />treatment plant overflow and that is required under Rule 3.13. This is cited as a problem under item 1 on page 4 <br />of this report and must be resolved within 30 days of the date of this report. <br />I & E Contact Address cc: F CE <br />F BLM <br />NAME: Randy Whicker F USFS <br />F HW <br />OPERATOR: Cotter Corporation IF HMWMD <br />F OSE <br />STREET: P.O. Box 1750 IF WQCD (Michael Harris) <br />CITY/STATE/ZIP: Canon City CO 81215 F OTHER (Denver Water, <br />Arvada Water, Table Mountain)