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of these stations are indicated on the map at Exhibit IV-C- <br /> 1 . Table III-E-6 is a tabulated list of the surface water <br /> monitor sites in Coal Basin. <br /> Mid-Continent began monitoring most sites in <br /> 1976 . Data from this monitoring program are presented in <br /> Appendix III-E-5 and summarized on Table III-E-7 . Baseline <br /> surface and groundwater sample are alkaline . There is <br /> little water quality difference between groundwater mine <br /> discharges and surface water tributaries draining the <br /> project area (sites 4 , 5, 6, 7 , 9) , and water samples taken from <br /> undisturbed drainages , (sites 2, 3 , 8 , 10) . The flow below the <br /> mine is slightly higher in total dissolved solids and alka- <br /> linity . An analysis of surface water quality indicates that <br /> • the highest concentrations of dissolved solids occur during <br /> the winter months . Much of' the flow during the winter <br /> months is groundwater from the mine and alluvial aquifers . <br /> During base flow periods water is naturally higher in total <br /> dissolved solids . Since baseflow is a product of infil- <br /> trated stored groundwater, the water quality is merely an <br /> indication of the materials that were leached during the <br /> aquifer recharge/discharge process . During spring and <br /> summer , the water quality improves because aquifer discharge <br /> is diluted with snowmelt . <br /> Mr . J . Peter Mars (Colorado Department of <br /> Health, Water Quality Control Division) made a study of the <br /> . Crystal River Drainage in 1980 to determine if the Coal <br /> 36 <br />