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_21_ Degraded ground water flowing from these mine workings has contaminated the hydrologically adjacent Trinidad sandstone and Alluvial aquifers. Ground water shows a decreasing quality from the east to the west across the permit area and also a decrease in quality with depth (Figure 7, Volume I). The applicant is in the process of obtaining from the Colorado Department of Health an approved plan for the treatment and disposition of water, which will be dewatered from flooded old underground mii7es. The applicant has agreed under this permit not to dewater flooded old mine workings and not to mine into flooded oId mine workings. An approved water treatment plan will be required before the applicant can begin dewatering old mine workings. This approval will be covered under future permitting. This treatment plan requirement will be satisfied upon the submittal of an approved plan from the Colorado Department of Health. The surface mining operation will impact six wells within and adjacent to the permit area. A discussison of ground water depletions of wells+is contained in Section VIII, water Rights and Replacement of this document. A11 rights to these wells are now held by the applicant. The water supply for the Colorado Coal Mine No. 1 will come from a 250 qpm industrial well (Temporary (use Permit No. 25724-F). The applicant is currently persuing an auymentation plan with the State Engineers' Office and Water Court For water From this well and water pumped from abandoned mine workings. This augmentation plan will involve the release of water from the applicant's Shafer Water Rights. The applicant may not pump water from the old mine workings until they have received State Engineers approval and obtained a techncial revision to this permit. The pumpage of water from the water supply well should not materially damage the ground water supplies of adjacent wells.