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<br />WALDEN COAL COMPANY <br />Annual Hydrologic Report <br />October 1, 1986 -September 30, 1987 <br />Surface Water <br />There was no flow in Mann Draw nor discharge from any of the four sedimentation <br />ponds on the Bourg Property during this period. Therefore, no surface water samples <br />were collected. <br />Ground Water <br />Ground water depth was monitored at eleven approximately 25 foot deep <br />monitoring wells in Mann Draw on a monthly basis (see attached). Most of the wells <br />remained dry or near dry throughout the year. Quarterly water quality samples were <br />collected from well 30C, the only well with enough water to sample. Results are <br />attached and do not show any significant variability from past results. <br />Summary <br />Water quality and quantity at the Bourg Mine has not changed to any noticeable <br />extent as a result of the mining operation. <br />