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<br />materials. The operation of these facilities has been terminated as has the storage, use, or <br />• handling of designated chemicals associated with each of these facilities. <br />Technical Revision 026 describes the series of steps proposed by BMRI to address the water <br />quality issue associated with the flow of groundwater from the West Pit including water <br />management and performance monitoring. In addition, the pre-existing water quality monitoring <br />will continue to ensure the viable operation of the tailings disposal facility, the only other active <br />environmental facility at the San Luis Project. <br />S.0 GROUNDWATER INFORMATION <br />Historical descriptions of groundwater at the San Luis Project are contained in the approved <br />permit (Exhibit G and Appendix B) and the permit amendment. The approved documents <br />provide the necessary information regazding a site-wide characterization of the overall <br />groundwater system at the San Luis Project. <br />The hydrogeologic characterization conducted as part of the TR-015 Response Plan provided <br />further detailed information regazding the groundwater hydrology in [he vicinity of [he West Pit. <br />A complete discussion of the detailed chazacterization, with supporting maps and diagrams, is <br />provided in Section 3.1 of TR-026. <br />9.0 GROUNDWATER QUALITY DATA <br />BMRI has conducted extensive groundwater quality monitoring for the San Luis Itroject, with a <br />recently expanded emphasis on monitoring wells installed in the vicinity of the West Pit. Water <br />quality results for site monitoring wells aze reported to the Division within 10 days of final <br />analytical laboratory reporting. A description of the groundwater quality-monitoring program is <br />provided in TR-006, Quality Assurance/Qualify Control (QA/QC) Protocols for the Collection of <br />Surface and Cround Water Quality Data, which also specifies field parameter measurements, <br />target detection limits, and monitoring frequency. <br />Potential future uses of groundwater within a 2-mile radius of the San Luis Project vary as a <br />function of geology. Potential uses in a northerly or easterly direction are limited to domestic <br />• water supply that might be drawn from the fractured Precambrian bedrock. To the south and <br />Battle Mountain Resources, lnc. Shepherd Miller lrtc. <br />p:40¢1E1n-arpp .rnuw n;: nr,ndepp/:1 d~ g Ocrober 18, l999 <br />