Laserfiche WebLink
C <br />1 J 1009 <br />Jv ,,c amaron, <br />pivls?on of , Safer <br />tjon9'and <br />July 09, 2009 <br />Ms. Kelly Morgan <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 />Phone: (303) 692-3603 <br />RE: PERMIT CO-0027154; DMR DISCREPANCIES <br />Dear Ms. Morgan: <br />As indicated in our letter of June 23, 2009: <br />Twentymile Coal Company <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />(970) 879-3800 <br />"005A - Apr, May, Aug, Oct, Nov 2008, Jan, Feb 2009. Like above, the original carbon monthly DMR we received (see <br />attached) omitted TR iron but indicated weekly sampling for total iron as Fe, which is what was done. I also corrected the <br />omitted flow data for Nov 2008. If you can send me an example of a regular monthly DMR for 005A, I'll correct these <br />DMRs. Until then, these are not included with this package." <br />These DMRs for Outfall 005A have been completed, and are attached. Note that water quality analyses for August 2008, <br />October 2008, November 2008, January 2009, and February 2009 did not include TR iron data. Also note that during May <br />2008, student interns submitted 6 samples for TR iron analyses, but neglected to request any total iron as Fe analysis. <br />Apparently, they requested the wrong parameter list with the laboratory. <br />Please contact me with any questions (970-870-2750). <br />Very truly yo rs, <br />X1 Ct? ? <br />Brian A. Watterson, P.G. <br />Geologist, Environmental Group <br />Twentymile Coal Company <br />Enclosures <br />cc: DBMS; CW PS Permit No. CO-0027154 file