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Requirement <br />Regulation <br />Require- <br />ment <br />comp lied <br />with? <br />(yes / no) <br />Comment <br />A. Filing frequency <br />of hydrology <br />report <br />CDRMS <br />regulation <br />4.05.13(4)(c) <br />yes <br />B. Timely filing of <br />hydrology report <br />March 15 <br />according to <br />Sections <br />4.8.5.1 and <br />4.8.5.2 <br />permit C -81- <br />010 <br />yes <br />C. Filing frequency <br />of NPDES <br />Discharge <br />Monitoring <br />Reports <br />NPDES <br />permit CO- <br />0032115 <br />yes <br />D. Timely filing of <br />Discharge <br />Monitoring <br />Reports <br />NPDES <br />permit CO- <br />0032115 <br />yes <br />E. NPDES discharge <br />limitations <br />NPDES <br />00321150 <br />y es <br />Exceedances for TSS and Total Recoverable Iron were in direct <br />response to snowmelt and/or precipitation events, and the alternate <br />limitation for Settleable Solids was met in all cases. <br />F. Basic Standards <br />for Surface Water <br />CWQCC <br />Re Regulation <br />y es <br />The classifications set forth in Regulation 31 were assigned to <br />specific state surface waters. See discussion on Instream Numeric <br />Standards (item G. below). <br />G. Instream Numeric <br />Standards <br />CWQCC <br />Regulation <br />37 <br />yes <br />Trapper's discharges from several CDPS outfalls drain to <br />Segment 3b of the Lower Yampa River. Trapper's CDPS <br />discharge limitations are based on which of the constituents in <br />Trapper's effluent are likely to cause an exceedance of Segment <br />3b's instream numeric standards. Trapper's discharges in 2010 <br />complied with the discharge limitations. Therefore, it is <br />reasonable to believe that Trapper's discharges did not violate <br />Segment 3b's instream numeric standards. <br />H. Antide <br />Antidegradation <br />�' <br />Rule for Surface <br />Water <br />CWCC <br />regulations <br />3.1.9(2) and <br />3.3.0. <br />NA <br />Trapper is not subject to the Antidegradation Rule because the <br />receiving waters (Segment 3b of Lower Yampa River) are <br />designated "Use- Protected." <br />Mine: Trapper Mine <br />Permit No.: C -81 -010 <br />Report Year: 2010 <br />Submitted by: Trapper Mining, Inc. <br />Date received by Division: March 15, 2011 <br />Review Checklist for Annual Hydrology Report <br />Page 1 <br />Date of review: October 31, 2011 <br />DRMS reviewer: Rob Zuber <br />