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Review Checklist for Annual Hydrology Report <br />Mine: Foidel Creek Mine <br />Permit No.: C-82-056 <br />Report Year: 2002 <br />Submitted by: Twentymile Coal Company <br />Date received by Division: 12/5/02 <br />Date review completed: 3/24103 <br />DMG reviewer: Tom Kaldenbach <br /> Require- <br /> <br />Requirement Requirement ment <br />complied <br />Comment <br /> citation with ? (yes <br /> / no <br />A. Filing frequency <br />CDMG regulation <br />of h drolo <br />gy <br />4.05.13(4)(c) es <br />y <br />re ort <br />B <br />i <br />ly <br />filingof CDMG regulation <br />h <br />dm <br />o <br />y gy <br />4.05.13(4)(c) es <br />y <br />re ort <br />C. Basic Standards CWQCC regulations <br />for Surface 3.1.11 yes <br />Water <br /> The only exceedances in 2002 were at two outfalls ofpermit CO-0042161, as follows: <br />D. NPDES NPDES permits a) WET tests failed at outfall 001(Fish Creek mine pumping site) early in the year. <br />discharge CO-0036684 and yes Subsequent accelerated testing indicated compliance, <br />limitations CO-0042161 b) A one-time pH excursion of 9.17 (limitation 9.00) at outfa11002 (domestic waste <br /> pond). Subsequent pH measurements indicated compliance. <br /> CWQCD did not issue a Notice of Violation for either exceedance. <br />Page 1 <br />