REP36671

• Permit No: C1981071
• IBM Index Class Name: Report
• Doc Date: 2/2/2001
• Doc Name: 2000 AHR TABLE 25 TO TABLE 45
• Annual Report Year: 2000
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

CYPRUS YAMPA~LEY COAL CORPORATION: MINE NO. 1, 2, AND ECKMAN PARK ~ •
2000 ANNUAL HYDROLOGIC REPORT
SUMMARY OF WATER QUALITY DATA
summary of water quality data-Ill.brw
CATEGORY PARAMETER ANALYSIS TYPE AVERAGE STD. DEV. MAXIMUM MRVIM1tUM UNITS COUNT BEGIN END
PHYSICAL PROPERTIES TEMPERATURE FIELD 12.27 7.06 28.00 0.00 DEGREES C 359 03/79 09/00
CONDUCTIVITY FIELD 737.25 421.48 3,370.00 160.00 UMHOS/CM 354 04/79 09/00
LAB 99691 1,015.84 8,000.00 271.00 UMHOS/CM 68 07/86 07/00
PH FIELD 7.88 0.60 9.12 6.20 PH 361 03/79 09/00
LAB 8.26 0.21 8.50 7.70 PH 28 07/86 07/00
ALKALMITY TOTAL 236.29 60.69 370.00 98.00 MG/L 59 07/86 09/99
ACIDITY AS CACO3 0.00 0.00 0.00 0.00 MG/L 3 10/80 I O181
HARDNESS AS CACO3 358.69 129.19 952.00 0.00 MG/L 169 10/BO 09/99
SOLIDS SUSPENDED 181.98 284.73 2,260.00 0.00 MG/L 226 03/79 07/00
SETTLEABLE 0.00 0.00 0.00 0.00 ML/L I 06/92 06/92
TOTAL-DISS 547.73 284.30 2,812.00 140.00 MG/L 230 03/79 07/00
OIL&GREASE VISIBLE NOT APPLICABLE 2.00 000 2.00 2.00 UNDEFINED 74 04/85 OR/R9
CATIONS CALCIUM DISSOLVED 69.32 23.59 200.00 0.00 MG/L 175 10/80 07/00
TOTAL RECOV 75.83 11.82 87.00 56.00 MG/L 6 06/87 09/88
MAGNESIUM DISSOLVED 45.03 18.18 110.00 0.00 MG/L 176 10/80 07/00
TOTAL RECOV 53.33 12 14 65.00 31.00 MG/L 6 06/87 09/88
SODIUM DISSOLVED 45.80 44.18 359.00 0.00 MG/L 176 10/80 07/00 '
TOTAL RECOV 29.67 6.68 46.00 23.00 MG/L 6 06/87 09/88
POTASSIUM DISSOLVED 2.49 0.90 5.30 080 MG/L 55 10/80 07/83
SAR NOT APPLICABLE 1.00 0.80 6.45 0.00 UNDEFMED 177 10/80 07/00
ANIONS BICARBONATE AS HCO3 234.95 68.45 447.00 112.00 MG/L 174 10/80 07/00
CARBONATE AS CO3 12.96 13.86 84 00 0.00 MG/L 70 10/80 07/00
HYDROXIDE AS OH 0.00 0.00 0 00 0.00 MG/L 21 04/95 09/99
CHLORIDE NOT APPLICABLE 4.38 3.71 21.00 0.00 MG/L 85 10/BO 06/86
SULFATE NOT APPLICABLE 226.23 200.46 1.955.00 10.00 MG/L 177 10/80 07/00
PRIMARY ARSENIC TOTAL 9.72 58.18 400.00 0.00 UG/L 47 05/80 12/86
TOTAL RECOV 0.33 0.58 1.00 0.00 UG/L 3 04/86 01/87
BARIUM TOTAL 0.00 000 O.UO 0.00 UG/L 3 10/80 10/81
CADMIUM TOTAL 0.37 142 6.00 0.00 UG/L 46 10/60 12/86
TOTAL RECOV 0.15 0 49 3.20 0.00 UG/L 57 04/86 07/00
LEAD TOTAL 7.63 14.59 50.00 0.00 UG/L 46 10/80 12/86
TOTAL RECOV 0.00 0.00 0.00 0.00 UG/L 3 04/86 01/87
MERCURY TOTAL 0.07 0.44 3.00 0.00 UG/L 47 05/80 12/86
TOTAL RECOV 0.01 0.03 0.20 0.00 UG/L 57 04/86 07/00
SELEMUM TOTAL 1.89 2.14 6.00 0.00 UG/L 47 05/80 12/86
TOTAL RECOV 0.79 0.84 4.00 0 00 UG/L 57 04/86 07/00
SECONDARY SILVER TOTAL RECOV 0.01 0.02 0.10 0.00 UG/L 55 10/80 07/00
COPPER TOTAL 3.04 6.95 20.00 0.00 UG/L 46 10/80 12/86
TsRI_F 154 SITE: 1002 (SURFACE WATER SITE 1002, FISH CREEK DOWNSTREAM OF SITE 302)