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RAG' <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 8793800 <br />April 26, 2002 <br />REC~,v~~ <br />Mpv o ~ 20°'t <br />n\v\stoo of M~~neta\s and Geo\o9V <br />ms. Cana a,enKey <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division -Permits and Enforcement <br />4300 Cherry Creek Ddve South <br />Denver. CO 80222-1530 <br />RE: PERMIT CO-0036684: 1"QUARTER 2002 DEAR SUBMITTAL <br />Dear Ms. Lenkey: <br />4.05.13(2)(a)(ii) -Timely reporting to CDMG of any <br />exceedances of effluent limitations, <br />Please find enclosed the above referenced discharge monitoring reports for the period from January 1, 2002 through March <br />31, 2002. Note that Ouffall 001 discharged during each week in January, the first week in February, and did not discharge <br />during the month of March. No permit limitation exceedences occurred during the period. <br />A Quarterly Whole Effluent Toxicity (WET) fest sample appears to have been collected for Outfail00t during the first quarterof <br />2002, but was inadvertently left in a cooler at our office. So the sample was not submitted to the laboratory within appropriate <br />holding times. The sample is currently archived at our analytical laboratory. While taking to Chris Gates on another issue, I <br />brought this up -asking if we should analyze the sample as a "good faith effort' even though it was past the holding time. He <br />indicated that we should "save our money" and explain the situation in a letter. Note that previous WET tests for this outtall <br />have passed for each quarter of 2001, and has recently passed for a sample collected on April 10, 2002 (This report is <br />attached). Based upon this data, and the limited discharge from this Outfall during the 151 quarter, TCC is of the opinion that <br />Outtall 001 presented no significant environmental impact during the first quarter of 2002. <br />Plea<se contact me directly at (970) 870-2750 for any further questions or additional information. <br />'~.J ~ //,'y/r/ <br />L <br />r ..........................................................................................-. _..--- - <br />Brian Watterson My review found the above-referenced report(s) in compliance <br />Environmental Gee i with [he following CDMG Regulations: <br />Twenrymile Coal C E <br />4.05.13(2)(a)(iii) -Timely submittal of DMRs to <br />CDMG. <br />Enclosures <br />cc: DMG <br />CWPS Permit f <br />~-l~ gz-~5(~ <br />~~~~ <br />S~~ <br />OF COC <br />~`o = - D9 <br />yQ. i 9O <br />+ ~ <br />• » <br />a`l876 x <br />4.05.1(3) -Compliance with Federal and State water <br />quality laws that pertain to discharges of surface <br />water. olvr rloW oe <br /> MINERALS <br />~/ <br />~dwa(~,~_ GI~4/OZ GEOLOGY <br /> <br />Tom Kaldenbach n Ew,i, G~ti~~`~i <br />Environmental Protection Specialist Date: ~ -- _ <br />