REP51867

• Permit No: C1981071
• IBM Index Class Name: Report
• Doc Date: 2/16/2000
• Doc Name: 1999 ANNUAL HYDROLOGY REPORT PN C-81-071
• Annual Report Year: 1999
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

CYPRUS YAMPA~LLEY COAL CORPORATION: MINE NO. 1, 2, AND ECKMAN PARK ~ •
1999 ANNUAL HYDROLOGIC REPORT
SUMMARY OF WATER QUALITY DATA
summary of water quality dale-Il.brw
Average Sld. Maximum Minimum DnILS Count Begin End
1 PHYSICAL PROPERTIES TEMPERATURE FIELD 13.560 6.5 25.000 0.200 DEGREES C 169 10/83 09/99
2 CONDUCTIVITY FIELD 2103.376 748.7 3670.000 400.000 UMHOS/CM 226 09/75 09/99
3 LAB 2412.094 582.9 3440.000 1000.000 UMHOS/CM 53 12/85 09/99
4 PH FIEI-D 8.078 0.3 9300 7.000 PH 212 09/75 09/99
5 LAB 8.174 0.1 8.300 8.000 PH IB 03/86 09/99
6 ALKALINITY TOTAL 246.540 63.3 415.000 74.000 MG/L 100 04/76 09/99
7 HARDNESS AS CAC03 1086.823 505.4 2170.000 178.000 MG/L 113 0.5/76 09/99
8 TOTAL 1140.000 685.1 1900.000 570.000 A1G/L 3 12/85 03/86
9 SOLIDS SETTLEABLE 0.200 0.0 -0.200 -0.200 ML1L I 06/92 06/92
10 SUSPENDED 110.711 249.1 1510.000 -5.000 MG/L 76 10/83 09/99
11 TOTAL-DI55 2226.113 605.4 3320.000 840.000 MG/L 53 11/86 09/99
12 OB-&GREASE VISIBLE NOT APPLICABLE 2.000 0.0 2.000 2.000 UNDEFINED 4 04/89 09/89
IJ CATIONS CALCIUM DISSOLVED 213.849 90.5 430.000 45.000 A1G/L 113 04/76 09/99
14 TOTAL RECOV 290.000 0.0 290.000 290.000 MG/L 1 06/87 06/87
IS MAGNESIUM DISSOLVED 134.500 71.7 312.000 16.000 MG/L 114 04/76 09/99
16 TOTAL RECOV 221.000 0.0 221.000 221.000 MG/L 1 06/87 06/87
17 SODIUM DISSOLVED 92.490 45.2 285.000 35.000 MG/L 80 04/79 09/99
IS TOTAL RECOV 131.000 0.0 131.000 131.000 MG/L I 06/87 06/87
19 POTASSIUM DISSOLVED 4.780 1.6 8.300 1.200 MG/L 64 04/76 07/88
20 SAR NOT APPLICABLE 1.147 0.6 6.090 0.211 UNDEFINED 132 04/79 09/99
21 ANIONS BICARBONATE AS HC03 310.278 71.6 506.000 106.000 MG/L 67 04/76 09/99
22 CARBONATE AS C03 0.167 3.3 10.000 -2.000 MG/L 30 06/92 09/99
2J HYDROXIDE AS OH -2.000 0.0 x.000 -2.000 MG/L 21 03/95 09/99
24 CHLORIDE NOT APPLICABLE 14.253 7.1 31.000 5.400 MG/L 66 04/76 07/88
25 SULFATE NOT APPLICABLE 1014.670 552.8 2140.000 100.000 MG/L 112 04/76 09/99
26 PRIMARY CADMIUM DISSOLVED -0.033 I.0 1.000 -1.000 UG/L 3 04/88 09/89
27 TOTAL -1.667 0.6 -1.000 -2.000 UG/L 3 04/79 10/80
28 TOTAL RECOV -0.430 0.9 L000 -5.000 UG/L 50 II/86 09/99
29 LEAD DISSOLVED 60.000 0.0 60.000 60.000 UG/L I 09/89 09/89
30 MERCURY DISSOLVED -0.100 0.0 -0.100 -0.100 UG/L 3 04/88 09/89
31 TOTAL -0.213 0.3 0.200 -0.500 UG/L B 09/75 04/82
32 TOTAL RECOV -0.103 0.2 0.500 -0.500 UG/L 60 09/75 09/99
33 SELENIUM DISSOLVED -0.333 1.2 1.000 -1.000 UG/L 3 0.5/88 09/89
34 TOTAL -1.000 0.0 -1.000 -1.000 UG/L 6 II/86 02/88
35 TOTAL RECOV -1.318 2.0 2.000 -10.000 UG/L 44 06/87 09/99
36 SILVER DISSOLVED -1.000 0.0 -1.000 -1.000 UG/L 2 04/88 07/88
37 SECONDARY SILVER TOTAL RECOV -0.434 0.6 2.000 -3.000 UG/L 50 11/86 09/99
38 COPPER TOTAL -25.000 0.0 -25.000 -25.000 UG/L I 09/75 09/75
TABLE 21A SITE: 900 (USGS 09243900, FOIDEL CREEK)