2010-04-16_REPORT - C1981044 (5)

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/g /nom Z2- • Annual *rology Report T ' f wentymm i e Coal Co mpany Report run on: March 29, 2007 8:46 Ah Page 1 Project 2003 Williams Fork Mine Station: AV3 AVF-3 Classification: WELL Category Parameter Analysis Type Average Sid'Dev Max. Min Count Units :Begin End ANIONS BICARBONATE AS HC03 509.57 128.23 1196.00 325.00 80 MG/L 06/81 05/06 CARBONATE AS CAC03 -2.00 0.00 -2.00 -2.00 7 MG/L 03/96 09/97 AS C03 -0.03 3.71 17.00 -2.00 37 MG/L 09/81 05/06 CHLORIDE NOT APPLICABLE 228.16 262.86 2300.00 9.00 79 MG/L 06/81 05/06 HYDROXIDE AS CAC03 -2.00 0.00 -2.00 -2.00 7 MG/L 03/96 09/97 AS OH -1.13 1.01 0.00 -2.00 23 MG/L 08/91 09/99 SULFATE NOT APPLICABLE 320.22 97.41 531.00 120.00 79 MG/L 06/81 05/06 CATIONS CALCIUM DISSOLVED 119.49 20.24 167.00 81.30 72 MG/L 03/83 05/06 TOTAL RECOV 75.57 9.11 86.00 64.00 7 MG/L 06/81 12/82 MAGNESIUM DISSOLVED 76.62 13.02 104.00 39.50 72 MG/L 03/83 05/06 TOTAL RECOV 48.71 5.74 54.00 40.00 7 MG/L 06/81 12/82 POTASSIUM DISSOLVED 3.95 1.64 6.40 3.00 4 MG/L 03/83 12/83 TOTAL RECOV 3.34 0.63 4.70 2.90 7 MG/L 06/81 12/82 SAR NOT APPLICABLE 3.60 0.49 4.85 2.50 57 UNDEFINED 06/81 07/96 SODIUM DISSOLVED 201.21 38.08 288.00 106.00 72 MG/L 03/83 05/06 TOTAL RECOV 134.86 15.87 151.00 114.00 7 MG/L 06/81 12/82 MEASURED PROPERTIES WATER LEVEL FIELD 6132.47 1.28 6137.45 6130.05 67 FEET (MSL) 01/84 10/91 MINOR FLUORIDE NOT APPLICABLE 0.40 0.16 1.30 0.18 46 MG/L 06/81 08/94 NUTRIENTS NITROGEN NITRATE 0.14 0.15 0.63 -0.02 68 MG/L 03/84 05/06 NITRITE -0.01 0.01 0.03 -0.01 26 MG/L 12/86 09/99 N03+NO2 0.20 0.29 1.99 -0.02 60 MG/L 06/81 09/99 PHYSICAL PROPERTIES ACIDITY AS CAC03 0.00 0.00 0.00 0.00 4 MG/L 06/84 03/85 ALKALINITY TOTAL 424.69 98.88 980.00 322.00 72 MG/L 06/81 05/06 CONDUCTIVITY FIELD 1697.37 302.57 2750.00 880.00 130 UMHOS/CM 01/82 06/01 LAB 1825.87 355.22 2700.00 920.00 79 UMHOS/CM 06/81 05/06 HARDNESS AS CAC03 597.31 150.21 786.00 0.00 48 MG/L 06/81 03/97 TOTAL 661.00 0.00 661.00 661.00 1 MG/L 03/92 03/92 OIL&GREASE VISIBLE NOT APPLICABLE 2.00 0.00 2.00 2.00 11 UNDEFINED 03/93 12/96 PH FIELD 7.42 0.29 8.70 6.80 130 PH 01/82 06/01 LAB 7.69 0.28 8.40 7.18 79 PH 06/81 05/06 SOLIDS SUSPENDED 276.00 386.95 780.00 8.00 6 MG/L 09/81 03/96 TOTAL-DISS 1201.23 249.79 1568.00 610.00 48 MG/L 06/81 03/96 TEMPERATURE FIELD . 9.18 2.94 18.50 3.70 126 DEGREES C 05/82 06/01 PRIMARY ARSENIC DISSOLVED -1.96 6.59 3.00 -40.00 72 UG/L 03/83 05/06 TOTAL RECOV 0.14 3.39 6.00 -2.00 7 UG/L 06/81 12/82