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Pitch Reclamation Project Colorado Mined Land Reclamation Board —2016 Annual Reclamation Report <br /> • The small-scale injections in 2015 and 2016 were intentional to manage injected phosphate. <br /> However,the positive results of uranium and phosphate monitoring as part of the 2015 and 2016 <br /> injection programs demonstrate that implementation at larger scales to achieve meaningful <br /> uranium load reductions in surface water should be initiated. <br /> • In the event that phosphate does occur in surface water as a result of underground injections, a <br /> treatment residuals management program employing iron-and aluminum-based reagents will be <br /> effective in removing residual dissolved phosphate. <br /> • Solid-phase reactive media, particularly zero valent iron, show effectiveness toward uranium <br /> removal in an ETC-based implementation. <br /> Compliance with the CDPS permit conditions was maintained at SW-33 during and following pilot tests in <br /> 2015 and 2016. As discussed in Section 7, HMC is planning to conduct field demonstration-scale <br /> implementation in 2017, with the overarching goal of realizing measurable uranium treatment in <br /> downgradient surface water. <br /> 4.8 Radioactive Materials License <br /> The RTP building, foundation and sediments excavated from the upper portion of Indian drainage below <br /> the old RTP area were placed in the Tie Camp Disposal Cell in 2001. Final grading and revegetation of the <br /> RTP area was started in 2002 and completed in 2003. With the removal of the RTP,the radioactive source <br /> material and any treatment capacity have been removed. Small amounts of radium 226 remain in the <br /> sediment deposited upstream of the Sediment Control Pond embankment. The RML for the Pitch <br /> Reclamation Project was renewed in April 2013 and will expire in April 2018. License renewal No. 15 allows <br /> HMC to manage the Tie Camp Low-Grade Stockpile and Disposal Cell, and the sediment upstream of the <br /> Sediment Control Pond embankment within the guidelines of the license. A copy of the 2016 Annual RML <br /> letter report is provided in on the CD attached to this report. <br /> 33 <br />