Laserfiche WebLink
Peabody <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, CO 80467 <br />970.879.3800 <br />April 28, 2009 <br />1 -F - D <br />?.?? 3 0109 <br />;C, tama+?on, <br />r??t??c??anal gafetY <br />Ms. Tania Watson <br />Colorado Department of Public Health and Environment <br />Water Quality Control Division - Permits and Enforcement <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />RE: PERMIT CO-0042161; FIRST QUARTER 2009 DMR SUBMITTAL <br />Dear Ms. Watson: <br /> <br />Please find enclosed the above referenced discharge monitoring reports for the period January 1, <br />2009 through March 31, 2009, for Outfalls 001A/001W (site 115), and 002A (sites 300E and <br />3001). Outfall 001A/001W did not discharge during the period. Attached are blank DMRs for this <br />Outfall with the No Discharge box checked. <br />Outfall 002A (sites 3001 and 300E) flowed each week of the period. Exceedances were noted for <br />002A (300E). These include sulfate and BOD-5 day (max and 30 day average). Note that the <br />sulfate number may be an anomaly. This is the first time we have exceeded this parameter. The <br />wastewater system was clogged for a short period in January due to freezing, which may have <br />impacted the analytical results. Subsequent sulfate readings in February and March were 140 <br />and 90 mg/L, respectively, well below the 250 mg/L limit. The BOD-5day readings in February <br />and March dropped to 34 mg/L and 20 mg/L, respectively. <br />Very truly ours, <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group, <br />Twentymile Coal Company <br />Enclosures <br />cc: DBMS CWPS Permit No. CO-0042161 file