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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />Interoffice MEMORANDUM <br />COLORADO <br />DIVISION OF <br />MIN &RALS <br />GEOLOGY <br />REC LAMATION•MIN ING <br />SAFETY•SCIENCE <br />to: Discharge Monitoring Report (DMR) file, Permit C-1982-056, Foidel Crglg~;~ine <br />Doc. Type: Hydrology Russell George <br />from: Byron G. Walker, Colorado Division of Minerals and Geology (CDMG) Executive Director <br />cc: Dan Hernandez, CDMG (e-mail) Ronald W. Catiany <br />subject: Review of Se tember 2004 Colorado De artment of Health and Enviro~~Dpivpis~iQn oirettnr <br />~ P 11 "~c3M]}Resource Trustee <br />(CDPHE) Permit CO-0027154 DMRs <br />date: November 29, 2004 <br />ref: Twentymile Coal Company letter of October 26, 2004 to CDPHE, Re: Permit <br />CO-0027154; September 2004/3rd Quarter 2004 DMR Submittal <br />The following checklist summarizes the results of the CDMG review of the subject DMRs. A <br />certification in the referenced letter attests that there was discharge only from outfa11003A (Pond <br />B) and 006A (Pond E). <br />Review Checklist for Discharge Monitoring Report (DMR) <br /> Requirement Requirement <br />Requirement citation complied with ? Comment <br /> es/no <br />1. Timely CDMG regulation Due October 28, 2004, letter <br />submittal of 4.05.13(2)(a)(iii), Yes dated October 26, 2004, received <br />DMRs to CDMG CDPHE ermit at CDMG on November 1, 2004 <br />2. Timely <br />reporting to No maximum, but an average <br />CDMG of any CDMG regulation <br />Yes TDS exceeded the allowable. <br />exceedances of 4.05.13(2)(a)(ii) CDMG was advised by a-mail of <br />effluent Oct 28, 2004. <br />limitations <br />3. Compliance This finding of compliance is <br />with Federal and subject to verification by the <br />State water Colorado Water Quality Control <br /> <br />quality laws that CDMG regulation <br />Yes Division. The data contained in the <br /> <br />pertain to 4.05.1(3) DMR appear consistent with field <br /> <br />' <br />discharges of observations made during CDMG <br />s <br />surface water inspections. <br />Low-flow discharges were noted in Ponds B and C during the 16 September CDMG inspection. <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />