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West Elk Mine 2013 Annual Hydrology Report 52 <br />elevated 10 percent or more over baseline maximums in WY 2013: Springs G -16, G- <br />28A, 35 -3, Deer Creek Spring, WCC -24, J2, and Deep Creek Trail Spring. In WY 2013, <br />Springs 15 -1, G -lA, G -20, G -30, J -7, and Deep Creek Spring # 2 were dry or did not <br />have sufficient flow to collect a laboratory sample. There are no baseline water quality <br />data for comparison for the following springs: 24 -3, 13 -1, 13 -2, 13 -3, 13 -4, 11 -2, 10 -1, <br />E10 -2, CR -12, and G -26A. <br />Several springs had one or more parameters that were 10 percent or higher in WY 2013 <br />than the comparable maximum baseline value. Spring 26 -1 had elevated laboratory EC <br />of 635 µmhos /cm compared to the maximum baseline value of 548 µmhos /cm. Field EC <br />was also elevated in May 2013 (736 µmhos /cm) and August 2013 (855 µmhos /cm) <br />compared to the baseline maximum of 640 µmhos /cm. <br />Spring 27 -1 had elevated laboratory EC of 630 µmhos /cm compared to the maximum <br />baseline value of 437 µmhos /cm. Field EC was also elevated twice in May 2013 (627 <br />µmhos /cm and 729 µmhos /cm) and August 2013 (817 µmhos /cm) compared to the <br />baseline maximum of 460 µmhos /cm. Spring 27 -1 also had slightly elevated TDS of 370 <br />mg /L compared to the baseline maximum of 300 mg/L. <br />Spring G -7 had elevated EC of 508 µmhos /cm compared to the baseline maximum of 414 <br />µmhos /cm, and slightly elevated TDS of 270 mg /L compared to the baseline maximum <br />of 230 mg /L. Spring G -24 had an elevated EC of 845 µmhos /cm compared to the <br />maximum baseline value of 564 µmhos /cm. Spring G -14 had an elevated EC of 935 <br />µmhos /cm compared to the maximum baseline value of 682 µmhos /cm. Spring G -22 had <br />an elevated conductivity of 1,210 µmhos /cm compared to the maximum baseline value of <br />640 µmhos /cm, and elevated TDS of 650 mg /L compared to the maximum baseline value <br />of 516 mg /L. <br />In WY 2013, Spring G -31 had an elevated laboratory EC of 610 µmhos /cm compared to <br />the baseline maximum of 505 µmhos /cm. Spring G -25 had an elevated laboratory EC of <br />1,890 µmhos /cm compared to the maximum baseline value of 1,320 µmhos /cm. Spring <br />G -35 had an elevated laboratory EC of 1,270 µmhos /cm compared to the maximum <br />baseline value of 1,130 µmhos /cm, and an elevated TSS of 25 mg /L compared to the <br />baseline maximum of 16 mg /L. Spring G -49 had an elevated laboratory EC of 2,440 <br />µmhos /cm compared to the baseline maximum of 1,800 µmhos /cm. <br />Spring J -4 had an elevated laboratory EC of 590 µmhos /cm, compared to the maximum <br />baseline value of 429 µmhos /cm, and elevated field EC values of 532 µmhos /cm (May 1, <br />2013) and 595 µmhos /cm (May 23, 2013), compared to the maximum baseline value of <br />480 µmhos /cm. TDS was also slightly elevated with a concentration of 350 mg /L <br />compared to the maximum baseline value of 300 mg /L. <br />The 96 -2 -2 Area Spring had slightly elevated TDS of 270 mg /L compared to the baseline <br />maximum of 240 mg /L, and an elevated field EC of 723 µmhos /cm (August 2013), <br />compared to the baseline maximum of 430 µmhos /cm. <br />Spring J -10 had a slightly elevated dissolved potassium concentration of 3.1 mg /L <br />compared to the baseline maximum of 2.5 mg /L, an elevated total recoverable selenium <br />concentration of 0.005 mg /L compared to the baseline maximum of 0.0011 mg /L, and an <br />June 2014 HydroGeo, Inc. <br />