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J. E. STOVER & ASSOCIATES <br />2788 COMPASS DRIVE, SUITE 101 <br />GRAND JUNCTION, COLORADO 81508 <br />PHONE: (970) 245-4101, FAX 242-7908 <br />MINE ENGINEERING <br />MINE RECLAMATION <br />January 11, 2000 <br />Dan T. Mathews <br />Division of Minerals and Geology <br />2148 Broadway, #C5 <br />Grand Junction, CO 81503 <br />Re: Powderhorn Coal Company <br />Roadside Portals; Permit No. C-81-041 <br />Quarterly Report -Hydrology Monitoring <br />Dear Mr. Mathews: <br />~iiiiiiiiiiuiiiiii <br />CIVIL ENGINEERING <br />CONST. MANAGEMENT <br />The following data are presented for the fourth quarter (October c~ December) 1999. <br />Surface Water <br />SWGS-01 Rapid Creek <br />SWGS-02 Cottonwood Creek <br />SWGS-03 Rapid Creek <br />SWGS-06 Coal Creek <br />SWGS-08 Jerry Creek <br />Spring and Seep <br />Data enclosed pages SG-29 & SG-30 <br />Data enclosed page SH-25 <br />Data enclosed page SI-25 <br />No Flow <br />No Flow <br />March or April - No data enclosed <br />Ground Water <br />GWMS-01,02 & 03 -May 8 September <br />Refuse pile piezometers (1/4 WL) <br />Unit train loadout (1/4 WL) <br />Piezometer N-1 North Decline (1/4 WL) <br />Rollins 1, 2, 3, 4 (1/4 WL) <br />Please let me know if you have any questions. <br />Sincerely, <br />J. E. Stover, P.E. <br />Consulting Engineer <br />No monitoring required <br />Data enclosed form dated 12-6-99 <br />Data enclosed pages GB-1 & GD-12 <br />72.3 12/29/99 <br />Data enclosed pages GE-1, GE 6 ~J 9 <br />cc: PCC File <br />