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J. E. STOVER & ASSOCIATES <br />2768 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81506 <br />PHONE: (970) 245-4101, FAX 242-7908 <br />nnrve ~vcweE[tmc <br />11~JE RECLAMATION <br />VIA FACSIIvTII.E TRANSMITTAL <br />November 9, 1999 <br />Dan T. Mathews <br />Division of Minerals and Geology <br />2148 Broadway, #CS <br />Grand Junction, CO 81503 <br />Re: Powderhorn Coal Company <br />Roadside Portals (Permit No. C-81-041) <br />Annual Hydrology Reports 1997 and 1998 <br />NOV CV-99-013 <br />Dear Mr. Mathews: <br />III IIIIIIIIIIIIIIII <br />999 <br />crva esrcuvEewxc <br />CON9T. MANAGEMENT <br />My letter to the DMG dated November 2, 1999 responded to abatement step numbers 1 and 2 for <br />the referenced NOV. I would like to expand on the measures taken by Powderhorn to ensure data <br />collection and reporting compliance. <br />Larry Reschke was responsible for data collection and reporting until his departure from Powderhorn <br />in April 1998. I-Ls departure was sudden and there was no transition period. Two individuals took <br />over data collection after Mr. Reschke's departure but it took some time to find all of the monitoring <br />sites. Thus, the lack of data at SWGS-02, 03 & OS for July 1998. <br />The undersigned is currently responsible for data collection and reporting. The on site CT&E lab <br />technician collects most of the data under my direction. Powderhorn is currently training an <br />additional person (Tonya Hammond) to collect this data to provide a smooth transition. <br />Reporting of data should improve. The main issue was the extent of missing data for surface water <br />monitoring sites on Rapid Creek and Cottonwood Creek. The revised format for reporting bimonthly <br />flow measurements at SWGS-02 and 03 will simplify reporting because chart recorders are not <br />necessary to collect and report this data. The chart recorder at SWGS-01 is operating correctly so <br />data from this station should be compiled with few gaps in data. <br />Please let me know if you have any questions. <br />Sincerely, <br />~r~~ <br />J. E. Stover, P.E. <br />Consulting Engineer <br />