REP02002

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: TABLE 1 CYPRUS YAMPA VALLEY COAL CORP FOIDEL CREEK MINE 1998 ANNUAL HYDROLOGY REPORT WATER QUALITY D
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

CYPRL.. ('WENTYMILE COAL COMPANY: FOmEL CREEK MINE
1998 ANNUAL HYDROLOGIC REPORT
SUMMARY OF WATER QUALITY DATA
n
summary of water qual[.~ data.brw
Average Std. Ma~dmum Minimum Units Count Begin End
1 Pl{YSICAL PROPERTIES TEMPERATURE FIELD 9.813 4.0 24.000 2.000 DEGREES C 209 Sep-80 Sep-98
2 CONDUCTIVITY FIELD 1361.794 340.4 2130.000 560.000 UMHOS/CM 209 Sep-80 Sep-98
3 LAB 1598.667 223.7 2420.000 ]180.000 UMHOS/CM 48 Jan-87 Aug-98
4 PH FIELD 7.319 0.4 8.300 6.100 PH 209 Sep-60 Sep-98
5 LAB 7.586 0.3 8.000 7.300 PH 7 lan-87 Aug-96
6 ALKALINITY TOTAL 314.122 22.2 379.000 254.000 MG/L 49 Oa-86 Aug-98
7 ACIDCIY AS CAC03 21.667 IZ.1 31.000 8.000 MG/L 3 Nov-80 May-81
8 HARDNESS TOTAL 765.159 118.2 1180.000 516.000 MG/L 69 Sep-80 Aug-98
9 AS CAC03 887.000 0.0 887.000 887.000 MG/L 1 Mar-98 Mar-98
]0 SOLIDS DISSOLVED 1179.444 178.6 1970.000 806.000 MG/L 72 Sep-BO Aug-98
11 SUSPENDED 38.000 0.0 38.000 38.000 MG/L 1 Jun-91 Jun-91
12 CATIONS CALCIUM DISSOLVED 183.901 30.5 277.000 113.000 MG/L 7I Sep-80 Aug-98
13 MAGNESIUM DISSOLVED 75.099 11.6 118.000 44.000 MG/L 71 Sep-80 Aug-98
14 SODIUM DISSOLVED 81.418 14.4 142.000 52.000 MG/L 71 Sep-80 Aug-98
15 POTASSIUM DISSOLVED 1.930 0.6 3.000 1.300 MG/L 10 Se -80 Apr-63
16 SAR NOT APPLICABLE 1.272 0.2 2.146 0.930 UNDEFINED 70 Sep-80 Aug-98
17 ANIONS BICARBONATE AS HC03 371.862 60.2 483.120 153.000 MG/L 71 Oc[-80 Aug-98
18 CARBONATE AS C03 0.178 4.7 16.800 -2.000 MG/L 27 Oct-82 Aug-98
19 HYDROXIDE AS OH -2.000 0.0 -2.000 -2.000 MG/C. 16 Dec-94 Aug-98
20 CHLORIDE NOT APPLICABLE 10.391 2.0 14.000 6.000 MG/L 23 Sep-80 Apr-86
21 SULFATE NOT APPLICABLE 604.833 120.1 1070.000 380.000 MG/L 72 Sep-80 Aug-98
22 PRIMARY ARSENIC DISSOLVED -1.625 2.2 4.000 -5.000 UG/L 16 Nov-80 Apr-B9
23 BARIUM DISSOLVED -66.667 321.5 300.000 -300.000 UG/L 3 Nov-80 May-81
24 CADMIUM DISSOLVED -2.780 6.2 4.000 -20.000 UG/L 61 Nov-80 Aug-98
25 TOTAL RECOV UG/L 0 Jun-91 Jun-91
26 LEAD DISSOLVED -20.377 73.3 300.000 -200.000 UG/L 53 Nov-80 Aug-98
27 MERCURY DISSOLVED -0.169 0.7 5.000 -1.000 UG/L 61 Nov-80 Aug-98
28 TOTAL RECOV UG/L 0 Jun-91 Jun-91
29 SELENIUM DISSOLVED -0.508 3.1 16.000 -5.000 UG/L 61 Nov-80 Aug-96
30 TOTAL RECOV UG/L 0 luo-91 lun-91
31 SILVER DISSOLVED •33.333 5.6 -30.000 40.000 UG/L 3 Nov-80 May-81
32 TOTAL RECOV UG/L 0 Jun-91 Jun-91
33 SECONDARY COPPER DISSOLVED -1.429 42.6 70.000 -30.000 UG/L 7 Nov-80 Apr-83
3q 2INC DISSOLVED 49.529 36.3 120.000 -10.000 UG/L 17 Nov-80 Apr-89
35 TOTAL RECOV UG/L 0 Jun-91 Jun-91
36 IRON DISSOLVED 506.620 1915.6 16000.000 -60.000 UG/L 71 Sep-80 Aug-98
37 TOTAL RECOV UG/L 0 Jun-91 Jun-91
3g MANGANESE DISSOLVED 1340.157 1141.3 4310.000 -20.000 UG/L 70 Sep-BO Aug-98
TABLE22A SITE: 08AV2 (008-AV-2)