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Findines: <br />AA1- In reviewing laboratory results, AA1 saw a 43.8% reduction in conductivity, <br />a 44.6% reduction in total dissolved solids, 17.2% increase in manganese and <br />a reduction of 16.0% in total iron. <br />In evaluating the effects of the mining operation, based on <br />conductivity, total dissolved solids, and total iron and manganese, the <br />Bear No. 3 Mine had no significant deleterious effects on groundwater <br />during 1996 compared with data generated from 1987 through 1996. <br />AA-3 In reviewing laboratory results, AA-3 saw a 203.6% rise in <br />conductivity, a 232.2% raise in total dissolved solids, 100.0% <br />reduction in manganese and 100.0% reduction in total iron. This <br />increase in conductivity and total dissolved solids could of possibly <br />been the result of water infiltrating into well AA-3 from a broken mine <br />discharge line located upstream from AA-3 several months earlier. As <br />can be seen on map "Figure 11 ", monitoring well AA-3 is located <br />close to ditch "A", a perimeter ditch surrounding the mine. It's <br />• believed that discharge water flowing in this ditch, and over <br />monitoring well AA-3, infiltrated into this well thus temporarily <br />contaminating it. Since Bear Coal Company is not currently <br />discharging any mine water, future water results should show a steady <br />decrease in conductivity and total dissolved solids. <br />• -3- <br />