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Pitch Reclamation <br />Project Colorado Mined <br />• Land Reclamation Board <br />2006 Annual Reclamation <br />Report <br />observed during 2005 and 2006 were more in line with historical variations. There <br />continues to be no indication of instability due to the phreatic levels in the waste rock <br />dumps. More detailed discussions and figures are presented in the December 2006 <br />Annual Geotechnical Report on file with the Division in December 2006 <br />4.6 Water Quality Monitoring <br />As outlined in TR4, Homestake has monitored water quality since 1994 to verify the <br />intended effectiveness of installation of the Pinnacle Adit plug. Water quality <br />monitoring was conducted in 2006 including sampling points located at the North Pit <br />Lake discharge (Sample Point NPL), the Tie Camp Creek drainage (Sample Points <br />TCCDRN and TCC), the site discharge POC (Sample Point SW-33), as well as <br />spring and seep surveys performed in the spring and fall. Monthly discharge- <br />monitoring reports (DMRs), pursuant to Colorado Discharge Permit System (CDPS) <br />number CO-0022756, were submitted monthly to the Colorado Department of Public <br />Health and Environment (CDPHE) for 2006. Monitoring for the CDPS was <br />conducted at the designated POC SW-33, shown on Figure 3. Analytical tests <br />. conducted for the DMRs at SW-33 included, flow, dissolved radium 226, total radium <br />2261228, total uranium, pH, total suspended solids (TSS), total dissolved solids, oil <br />and grease (visual only), potentially dissolved zinc, and whole effluent toxicity (WET) <br />analyses as required by the CDPS. During 2006, all analytical results were below <br />the CDPS permit's 30-day average or daily maximum limitations. The 2006 DMRs <br />are on file with the CDPHE-Water Quality Control Division. <br />4.7 Radioactive Materials License <br />The RTP building, foundation and sediments excavated from the upper portion of <br />Indian Creek below the old RTP area were placed in the Tie Camp Disposal Cell in <br />2001. Final grading and revegetation of the RTP area was started in 2002 and <br />completed in 2003. With the removal of the RTP, the radioactive source material <br />and any treatment capacity have been removed. Small concentrations of the <br />Radium 226 isotope remain in the sediment deposited upstream of the sediment <br />control embankment. The Radioactive Materials License (RML) for the Pitch Project <br />was renewed in September 2003. The renewal allows Homestake to manage the <br />Tie Camp Low -Grade Stockpile and the sediment upstream of the sediment control <br />embankment within the guidelines of the license. A copy of the 2006 annual RML <br />report letter is provided in electronic Adobe Acrobat© Portable Document Format on <br />the CD attached to this report. <br /> <br />19 <br />