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Review Checklist for Annual Hydrology Report <br />Mine: Foidel Creek Mine <br />Permit No.: C-82-056 <br />Report Year: 2005 <br />Submitted by: Twentymile Coal Company <br />Date received by Division: 4/10/06 <br />Date review completed: 4/18106 <br />DMG reviewer: Byron G. Walker <br /> Requirement <br />Requirement Requirement complied Comment <br /> citation with ? (yes I <br /> no <br />A. Filing frequency <br /> <br />of hydrology CDMG regulation <br />es <br /> 4.05.13(4)(c) y <br />re ort <br />B. Timely filing of <br />hydrology CDMG regulation yes, as <br /> <br />re ort 4.05.13 4 c <br />OO <br />extended <br />C. Basic Standards <br /> <br />for Surface CWQCC <br />yes <br />Water regulations 3.1.11 <br />D. NPDES NPDES permits <br />discharge CO-0036684 and es <br />y The only exceedances were of permit CO-0042161, and concerned domestic waste <br />limitations CO-0042161 <br />discharge (into the mine). CWQCD did not issue a Notice of Violation. <br /> The mine discharges surface runoff and pumped mine water to the following stream <br /> segments in Region 12 of the Yampa River basin: <br /> Segment 13c, Trout Creek above Fish Creek <br /> Segment 13b, Foidel Creek <br />E. Instream Segment 13a, Trout Creek below Fish Creek <br />Numeric CWQCC CWQCC lists numeric standards for the segments in its regulation 3.7.0. Historical <br />Standards regulation 3.3.0 yeS monitoring data from the stream segments indicate the iron numeric standazd is frequently <br /> exceeded and the lead and manganese standazds are occasionally exceeded. Premining <br /> data indicate these exceedances aze probably unrelated to mining. Monitoring data in the <br /> AHR indicate the mine's discharges did not cause exceedances of Instream standards in the <br /> stream segments. <br />Page 1 <br />