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West Elk Mine 2008 Annual Hydrology Report 61 <br />34.7 mg/l, and elevated TDS of 386 mg/l compared to the baseline maximum of 360 mg/l. Spring <br />WCC-24 had elevated dissolved aluminum of 0.277 mg/l compared to the baseline maximum of <br />0.04 mg/l, total arsenic of 0.127 mg/l compared to the baseline maximum of 0.0086 mg/l, elevated <br />dissolved boron of 1.76 mg/l compared to the baseline maximum of 0.86 mg/I, elevated dissolved <br />cadmium of 0.013 mg/l compared to the baseline maximum of below lab detection limits (<0.005 <br />mg/1), elevated dissolved copper of 0.046 mg/1 compared to the baseline maximum of below lab <br />detection limits (<0.01 mg/1), and elevated total iron of 0.59 mg/l compared to the baseline <br />maximum of 0.53 mg/1. Spring J-7 had elevated dissolved aluminum of 0.534 mg/1 compared to <br />the baseline maximum of 0.05 mg/l, elevated total arsenic of 0.017 mg/1 compared to the baseline <br />maximum of 0.0008 mg/l, elevated dissolved boron of 0.61 mg/l compared to the baseline <br />maximum of 0.02 mg/l, elevated dissolved copper of 0.013 mg/l compared to the baseline <br />maximum of below lab detection limits (<0.01 mg/1), elevated dissolved iron of 0.17 mg/I <br />compared to the baseline maximum of 0.11 mg/l, elevated dissolved manganese of 0.006 mg/l <br />compared to the baseline maximum of below lab detection limits (<0.005 mg/1), and total <br />recoverable selenium of 0.005 mg/l compared to the baseline maximum of below lab detection <br />limits (<0.001 mg/1). Deep Creek Trail Spring had elevated dissolved aluminum of 0.167 mg/l <br />compared to the baseline maximum of 0.11 mg/l, elevated total arsenic of 0.026 mg/l compared to <br />the baseline maximum of below lab detection limits (<0.005 mg/1), elevated dissolved boron of <br />0.33 mg/l compared to the baseline maximum of 0.02 mg/l, elevated dissolved copper of 0.027 <br />mg/l compared to the baseline maximum of 0.20 mg/l, elevated dissolved magnesium of 7.42 mg/1 <br />compared to the baseline maximum of 6.0 mg/l, elevated dissolved potassium of 1.63 mg/1 <br />compared to the baseline maximum of 1.1 mg/l, elevated total selenium of 0.005 mg/l compared to <br />the baseline maximum of below lab detection limits (<0.001 mg/1). Deep Creek Spring #2 had <br />elevated dissolved boron of 0.54 mg/l compared to the baseline maximum of 0.02 mg/l, elevated <br />total mercury of 0.0006 mg/I compared to the baseline maximum of below lab detection limits <br />(<0.0002 mg/1), elevated dissolved potassium of 1.59 compared to the baseline maximum of 1.4 <br />mg/l, and elevated total selenium of 0.003 mg/1 compare to the baseline maximum of below lab <br />detection limits (<0.001 mg/1). The 96-2-2 Area Spring had elevated dissolved boron of 0.65 mg/I <br />compared to the baseline maximum of 0.02 mg/1, elevated dissolved copper of 0.02 mg/I compared <br />to the baseline maximum of below lab detection limits (<0.01 mg/1), elevated nitrate/nitrite as N of <br />0.73 mg/I compared to the baseline maximum of 0.04 mg/l, and elevated total selenium of 0.005 <br />mg/l compare to the baseline maximum of 0.002 mg/l. <br />MCC will continue to monitor the water quality of these springs to in order to discern any changes <br />in water quality trends. <br />June 2009 HydroGeo, Inc.