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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Roan 215 <br />Denver, Colorado 80203 <br />Phan: (303) 8663567 <br />FAX: (303) 832$106 <br />Interoffice MEMORANDUM <br />COLORADO <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />AEGEAN ATION•NININO <br />EAfETYKQENCE <br />to: Discharge Monitoring Report (DMA) file, Permit C-1982-056, Foidel C~~~4t~`Iine <br />Doc. Type: Hydrology t<~::en ceorace <br />from: Byron G. Walker, Colorado ivision of Minerals and Geology (CDMG)FseLVtlve Director <br />subject: Review of 2"d Quarter 2006 Colorado Department of Health and Enviroaq~. ('atta"y <br />(CDPHE) Permit CO-0036684 DMRs Division olructor <br />date: August 2, 2006 NaNral Resource Trustee <br />ref: Twentymile Coal Company letter of July 27, 2006 to CDPHE, Re: Permit CO- <br />0036684; 2"d Quarter 2006 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 to dischazges summazized in the following table. <br />Division observations about discharge aze also indicated in the table. <br />Dischazge Point Discharge <br /> Foidel Re ort Division Observations <br /> <br />OOIA (Pond E) The operator reported that the <br />pond dischazged each week. <br />0.015 mgd average, 0.028 <br />mgd daily maximum 0.019 mgd on 23 May 2006 <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 yes (CDPHE Due Apri128, 2006, letter dated <br />submittal of 4.05.13(2)(a)(iii), schedule) July 27, 2006, received at CDMG <br />DMRs to CDMG CDPHE ermit on August 1, 2006 <br />2. Timely <br />reporting to <br />CDMG of any CDMG regulation yes By exception, there were none. <br />exceedance of 4.05.13(2)(a)(ii) <br />effluent <br />limitations <br />3. Compliance <br />with Federal and <br />This finding of compliance is <br />State water <br />quality laws that CDMG regulation <br />Yes subject to verification by the <br /> <br />pertain to 4.05.1(3) Colorado Water Quality Control <br />dischazges of Division. <br />surface water <br />Office of Office of Colorado <br />Mined land Reclamation Active and Inactive Mines Geological Survey <br />