2010-04-16_REPORT - C1981044 (5)

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To Ale- u idrology Report Ann • Twile Coal Company Report run on: March 29, 2007 8:15 Ali Page 1 Project: .2003 Willi ams Fork Mine Station: 5MN NO 5 MINE WELL Classification: WELL t d E Category Parameter Analysis Type Average Std Dev Max Min Coun Units Begin n ANIONS BICARBONATE AS HC03 440.55 78.59 808.86 368.00 27 MG/L 03/81 06/01 CARBONATE AS CAC03 -2.00 0.00 -2.00 -2.00 1 MG/L 06/96 06/96 AS C03 10.80 15.74 55.20 -2.00 16 MG/L 09/81 06/01 CHLORIDE NOT APPLICABLE 6.74 5.55 28.00 1.00 27 MG/L 03/81 06/01 HYDROXIDE AS CAC03 -2.00 0.00 -2.00 -2.00 1 MG/L 06/96 06/96 AS OH -1.60 0.89 0.00 -2.00 5 MG/L 06/92 06/99 SULFATE NOT APPLICABLE 150.15 42.27 196.00 -10.00 27 MG/L 03/81 06/01 CATIONS CALCIUM DISSOLVED 20.64 2.06 25.00 17.00 18 MG/L 06/83 06/01 TOTAL RECOV 16.00 2.45 18.00 10.00 9 MG/L 03/81 12/82 MAGNESIUM DISSOLVED 15.34 3.28 20.00 4.00 18 MG/L 06/83 06/01 TOTAL RECOV 12.18 2.72 14.00 5.00 9 MG/L 03/81 12/82 POTASSIUM DISSOLVED 3.00 0.00 3.00 3.00 1 MG/L 06/83 06/83 TOTAL RECOV 4.58 2.82 11.20 2.90 9 MG/L 03/81 12/82 SAR NOT APPLICABLE 8.93 2.79 20.82 6.11 22 UNDEFINED 03/81 06/96 SODIUM DISSOLVED 189.11 16.62 216.00 151.00 18 MG/L 06/83 06/01 TOTAL RECOV 215.22 40.48 323.00 198.00 9 MG/L 03/81 12/82 MEASURED PROPERTIES WATER LEVEL FIELD 6053.83 90.91 6139.92 5860.02 27 FEET (MSL) 03/85 10/91 MINOR FLUORIDE NOT APPLICABLE 0.64 0.48 2.54 0.40 20 MG/L 03/81 06/94 NUTRIENTS NITROGEN NITRATE 0.04 0.08 0.27 -0.02 20 MG/L 03/85 06/01 NITRITE 0.01 0.03 0.07 -0.01 8 MG/L 06/92 06/99 N03+NO2 0.11 0.23 0.91 -0.02 26 MG/L 03/81 06/99 PHYSICAL PROPERTIES ACIDITY AS CAC03 0.00 0.00 0.00 0.00 1 MG/L 03/85 03/85 ALKALINITY TOTAL 377.77 68.19 709.00 342.00 26 MG/L 03/81 06/01 CONDUCTIVITY FIELD 1015.67 152.19 1430.00 493.00 110 UMHOS/CM 01/82 06/01 LAB 971.41 81.06 1300.00 866.00 27 UMHOS/CM 03/81 06/01 HARDNESS AS CAC03 99.81 19.17 123.00 46.00 20 MG/L 03/81 06/96 PH FIELD 7.81 0.33 8.58 6.90 111 PH 01/82 06/01 LAB 8.15 0.26 8.75. 7.70 26 PH 06/81 06/01 SOLIDS SUSPENDED 28.33 44.88 80.00 -1.00 3 MG/L 03/81 03/85 TOTAL-DISS 634.15 50.46 805.00 570.00 20 MG/L 03/81 06/94 TEMPERATURE FIELD 17.88 2.87 27.00 11.00 112 DEGREES C 05/82 06/01 PRIMARY ARSENIC DISSOLVED -2.61 9.84 12.00 -40.00 18 UG/L 06/83 06/01 TOTAL RECOV -0.56 1.51 2.00 -2.00 9 UG/L 03/81 12/82 BARIUM DISSOLVED -200.00 0.00 -200.00 -200.00 1 UG/L 06/83 06/83 TOTAL RECOV 53.33 371.62 800.00 -200.00 9 UG/L 03/81 12/82