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seasonal pond formed by alluvial groundwater that "daylights" through seeps within excavated <br />portions of the former overflow retention pond. This measure is expected to further minimize <br />groundwater flow inputs into the alluvial fill. Cotter also submitted the bonding to cover TR-15. <br />Cotter requested that DRMS approve TR-15 as quickly as possible. <br />On October 7, 2010, DBMS approved TR-15 (Exhibit Q. Cotter appreciated DRMS' <br />quick approval. The approval stated that, "[a]lthough Cotter's current plan is to install only one <br />sump/French drain combination in the near term, this TR includes the provision that up to three <br />additional sump/drain combinations may be installed in the near future." In fact, Cotter has <br />already commenced installation of Sump 5, and plans to install the second sump expeditiously, <br />which will be called Sump 8. <br />On September 17, 2010, Cotter also submitted a TR-14 request to perform an <br />investigation to identify and characterize source term alluvial fill at the Schwartzwalder Mine <br />(Exhibit D). The investigation will assess the properties of any such source term materials along <br />with an assessment of appropriate excavation and disposal of source term materials. DRMS <br />approved TR-14 on October 6, 2010 (Exhibit E), which Cotter also appreciated. <br />Cotter is continuing to investigate a 2-inch pipe that was discovered to have flow on <br />July 20, 2010 to an alluvial fill area. That investigation has involved sampling, computer <br />analysis, video by a borehole geophysics company, and excavation of the pipe. Cotter will <br />continue to keep DRMS informed of its investigation findings. <br />Cotter reserves the right to submit additional evidence anytime before or at the hearing, <br />as allowed pursuant to the Notice. <br />5