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Janis Fleming

Summary of reconnaissance investigations at the Skunk Camp site, an alternative site for a future tailings storage facility (TSF).

Summary of reconnaissance investigations at the Peg Leg site, an alternative site for a future tailings storage facility (TSF).

This tech memo has been prepared to summarize results of the Phase II field investigations of the Near West site, conducted in support of RCM's ongoing prefeasibility studies for storage of RCM mine tailings. The purpose of Phase II investigations was to conduct electrical resistivity surveys to assess the potential occurrence of shallow groundwater at the Near West site.

The purpose of the Phase I assessment was to conduct non-invasive field investigations to supplement information obtained previously from published data and to plan Phase III investigations involving subsurface exploration drilling and hydrologic testing.

This draft technical memorandum has been prepared to summarize hydrogeologic data and provide an assessment of hydrogeologic conditions and water uses in the vicinity of the Whitford, Silver King, and Happy Camp sites (Near West area) for the RCM Tailings Prefeasibility Study (PFS).

This technical memorandum was prepared to summarize modifications made to wells HRES-02, HRES-05, and HRES-10 in 2011.

This draft technical memorandum has been prepared to summarize results of drilling, construction, and development of groundwater production well RESPW-01. The well was installed to intersect mine workings on the 4400 Mine Level adjacent to Shaft No. 8 of the Magma Mine in order to dewater that level and overlying levels.

This technical memorandum was prepared to summarize results of drilling and construction at hydrologic test wells PHRES-01, PHRES-02, PHRES-03, and PHRES-04. The wells were installed to provide observation wells during the long-term pumping test at well HRES-09, and to provide locations for characterization of fracture distribution and hydraulic conductivity in the Apache Leap Tuff (ALT) aquifer in the vicinity of hydrologic test well HRES-09.

This technical memorandum has been prepared to summarize results of drilling and construction at hydrologic test well DHRES-14. DHRES-14 is located east of Devils Canyon, between the Devils Canyon Fault and JI Ranch Fault. The well was installed to characterize hydrogeologic conditions and provide a monitoring location in the Tertiary Whitetail Conglomerate and Precambrian Pinal Schist. Monitoring data obtained from DHRES-14 will be incorporated into the RCM hydrologic monitoring program.

This technical memorandum has been prepared to summarize results of drilling, construction, and testing at hydrologic test wells HRES-16, HRES-17, and HRES-18. The wells were installed to characterize hydrogeologic conditions in the Apache Leap Tuff (ALT) on the east side of Devils Canyon near the JI Ranch Fault. HRES- 16 is a larger diameter well (nominal 8-inch) that was completed to provide a location for longterm aquifer testing in the ALT aquifer. Monitoring data obtained from HRES-16, HRES-17, and HRES-18 have been incorporated into the RCM hydrologic monitoring program.