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,• j,~~ M~~IIIIIII 111111 IIII <br />~ ~ <br />. - CYCC <br />Colorado Yampa Coal Company I 29588 Routt County Road #27. Oak Creek. CO 80467 • (303) 879-3800 <br />May 20, 1986 <br />y..-.., .... <br />~..r ~ b W~l~..#; ~f. <br />Ms. Catherine Begej <br />Reclamation Specialist <br />Colorado Mined Land <br />Reclamation Division <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br />MAY 21 1986 <br />gjit:[' f , <br />RE: N.O.V.'s C-86-021 and C-86-023 Abatement Information <br />Dear Ms. Begej: <br />Attached, please find the data required to abate the above violations The data <br />is for March, 1986, as specified in the abatement section of the referenced <br />violations. <br />Sites 24 and 76 are monitored per the requirements of the NPDES permit, which <br />specifies monthly sampling as opposed to the weekly sampling specified in the <br />CMLRD permit. It is CYCC's opinion that sampling requirements have been met <br />for these points. The sampling frequency discrepancy will be rectified in the <br />upcoming technical revision for modifying the hydrologic monitoring plan. <br />Another point that requires classification, involves the flow data from sites <br />18 and 60 at Mine 3. The flow data is obtained from upstream U.S.G.S. sites <br />09243700 and 09243900, and this data was not available at this time. Once the <br />continuous records for these stations are received, the flow data for sites 18 <br />and 60 can be determined. <br />If there are any questions, please contact me at your convenience. <br />Sjn~erely, <br />y-, <br />Richard Mills <br />Senior Environmental Engineer <br />RAM/jg <br />Attachment <br />