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Review Checklist for Annual Hydrology Report <br />Mine: New Horizon Mine Date of review: 1/09/14 <br />Permit No.: C -81 -008 DRMS reviewer: Rob Zuber <br />Report Year: 2012 <br />Submitted by: Western Fuels — Colorado, LLC (WFC) <br />Date received: 11/15/12 <br />Page 1 <br />Require- <br />ment <br />Requirement <br />Regulation <br />complied <br />Comment <br />with ? (yes <br />/ no) <br />A. Filing frequency <br />CDRMS <br />of hydrology <br />regulation <br />yes <br />report <br />4.05.13(4)(c) <br />Dec 31 <br />Due by three months after water year ends (water year ends <br />B. Timely filing of <br />according to <br />September 30). WFC submitted six weeks early. <br />hydrology report <br />Section <br />yes <br />"PAP" <br />2.05.6(3) in <br />= Permit Application Package. <br />PAP <br />C. Filing frequency <br />Per page 32 in the PAP, these reports must be submitted <br />of NPDES <br />NPDES <br />monthly. WFC met this requirement for reporting year. <br />Discharge <br />permit CO- <br />yes <br />Monitoring <br />0000213 <br />Reports <br />D. Timely filing of <br />NPDES <br />Per page 32 in the PAP, these reports must be submitted by <br />Discharge <br />CO- <br />NT es <br />28th of following month. WFC met this requirement for <br />Monitoring <br />0000213 <br />reporting year. <br />Reports <br />NPDES <br />Iron at Site 007 exceeded the 30 -day average limitation in <br />E. NPDES discharge <br />CO- <br />November 2011. However, the concentration was well <br />limitations <br />permit <br />0000213 <br />yes <br />below the limitation in October, and there was no flow in <br />December. <br />F. Basic Standards <br />CWQCC <br />This finding of compliance is subject to verification by the <br />for Surface Water <br />regulations <br />yes <br />Colorado Water Quality Control Division (WQCD). <br />31.11 <br />Calamity and Tuttle Draws are ephemeral streams within <br />Segment 12 of the San Miguel River. There are no water <br />supply uses on these draws. Instream sampling data <br />reported in the AHR indicate that Segment 12 numeric <br />standards were not exceeded except for the following minor <br />CWQCC <br />exceptions. Total Recoverable Iron standard was exceeded <br />G. Instream Numeric <br />ation <br />in both Calamity and Tuttle Draw in August 2012. However, <br />Standards <br />3 <br />yes <br />the values barely exceeded the standard of 1 mg /L, the <br />problem was not detected in March 2012, and, for Tuttle, the <br />concentration decreased from upstream of the mine to <br />downstream of the mine. <br />(This finding of compliance is subject to verification by the <br />WQCD.) <br />Page 1 <br />