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mine effluent. The revision imposed upon Resources by the <br /> Division required that a water treatment plant capable of <br /> removing coal fines from the mine effluent be utilized prior to <br /> further mine water discharges during coal production. In other <br /> words, the mine could not discharge water from the mine so long <br /> as coal was being produced unless the water treatment plant was <br /> installed and operating. <br /> Upon cessation of mining in 1991, the quality of the water <br /> discharging from the mine entries improved dramatically in regard <br /> to suspended solids. This can be verified by comparing both OSM <br /> and Division water quality samples with pre-closure data. <br /> Since permit revocation, the Division continues to write <br /> violations related to hydrologic concerns. Failure to abate the <br /> violations results in the issuance of Cessation Orders as <br /> appropriate. In addition, the Division continues to monitor the <br /> quality of the water discharged from the mine by taking samples. <br /> Toxins in the Crystal River <br /> The Crystal Valley Environmental Protection Association is <br /> concerned that certain unspecified toxins have been released from <br /> the Coal Basin Mine and have impacted the macroinvertebrate life <br /> in the Crystal River. This concern stems from a statement <br /> contained in a data report prepared by the Colorado Division of <br /> Wildlife and the U. S. Forest Service (Appendix 12) . Page 11, <br /> paragraph two of the report states that it is possible that ". . .a <br /> non-selective toxicant, possibly from chemicals used in the coal <br /> mine operation affecting these ecosystems. . . " may be responsible <br /> for an observed decrease in macroinvertebrate diversity in the <br /> lower Crystal River. <br /> Because the Division does not employ specialists in the field of <br /> macroinvertebrates, an outside consultant was employed to <br /> evaluate the data report and the accompanying narrative (Appendix <br /> 12) . The consultant found that the report as presented was too <br /> loosely constructed and the data too limited to provide for any <br /> definitive conclusions. The consultant continued on to state <br /> that conclusions offered in the report are not substantiated by <br /> data. Further, the lack of supporting water quality data, <br /> without which a true representation of the macroinvertebrate life <br /> cannot be made, flaws the report. <br /> It is unfortunate that unsubstantiated claims of environmental <br /> damage mislead the public. However, the Division is aware of the <br /> public concern that some manner of hazardous materials have been <br /> improperly disposed of at the Coal Basin Mine. The Division <br /> intends to conduct an environmental audit of the mine, focusing <br /> on the Rock Tunnel Refuse Disposal Facility in 1994, dependent <br /> -8- <br />