REP45258

• Permit No: C1984062
• IBM Index Class Name: Report
• Doc Date: 4/8/1998
• Doc Name: 1997 ANNUAL HYDROLOGY REPORT
• From: COLO YAMPA COAL CO
• To: DMG
• Annual Report Year: 1997
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

CYPRUS YAMPA VALLEY COAL CORPORATION
1997 ANNUAL HYDROLOGIC REPORT
SUMMARY OF WATER QUALITY DATA mwn~ry ofwrter giWlty d~LLb~w
Avenge Std M~~num Mh~hmm~ Unite Co~od Bed End
1 PHYSICAL PROPERTIES TEMPERATURE FlELD 17.436 6.6 25.000 0.200 DEGREES C 143 10/63 09/97
S CONDUCTIVITY FlELD 2108.876 782.7 3670.000 400.000 UMHOS/CM 202 09/73 09N7
3 LAB 2499.578 565.7 3440.000 1000.000 UMHOS/CM 43 12/83 09/97
4 PH FlELD 8.063 0.4 9.300 7.000 PH 188 09!13 09197
5 LAB 8.163 0.1 8.700 8.000 PH 10 03/86 09/97
6 ALKALMFF1' TOTAL 242.670 64.4 415.000 74.000 MG/L 92 04/76 09/97
7 HARDNESS TOTAL 1105.029 517.1 2170.000 176.000 MG/L 105 04/76 09/97
B NON-CARBONATE 913.333 615.8 1600.000 410.000 MG/L 3 12/85 03/66
9 SOLIDS DISSOLVED 2324.311 384.7 3320.000 840.000 MG/L 43 11/86 09P97
10 SUSPENDED 121.397 261.4 1510.000 -5.000 MG/L 68 10/83 09N7
11 SETTLEABLE -0.200 0.0 -0.200 -0.200 ML/L 1 06/92 06/92
12 OIL&GREASE VISIBLE NOT APPLICABLE 2.000 0.0 2.000 2.000 UNDEFINED 4 04/89 09/89
13 CATIONS CALCIUM DISSOLVED 217.162 92.0 470.000 45.000 MG/L 105 04/76 09/97
14 TOTAL RECOV 290.000 0.0 290.000 290.000 MG/L 1 06/87 06/87
15 MAGNESRIPI DISSOLVED 135.329 77.3 712.000 16.000 MG/L 106 04/76 09/97
16 TOTAL RECOV 221.000 0.0 221.000 221.000 MG/L 1 06/87 06/87
17 BODKIN DISSOLVED 86.507 35.0 180.000 75.000 MG/L 72 04/79 09/97
18 TOTAL RECOV 111.000 0.0 131.000 131.000 h1G/L 1 06/87 06/87
19 POTASSRIPI DISSOLVED 4.780 1.6 8.300 1.200 MG/L 64 04/76 07/86
20 SAR NOT APPLICABLE 1.066 0.4 1.957 0.211 UNDEFINED 124 04/79 09N7
21 ANIONS BICARBONATE AS HC03 104.939 74.1 306.000 106.000 MG/L 39 04/76 09/97
22 CARBONATE AS C03 0.273 3.4 10.000 -2.000 MG/L 22 06/92 09/97
23 HYDROXIDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 13 03/95 09/97
24 CHLORIDE NOT APPLICABLE 14.253 7.1 31.000 3.400 A1G/L 66 04/76 07/88
25 SULFATE NOT APPLICABLE 1018.490 369.1 2140.000 100.000 R1G/L 104 04/76 09f97
26 PRIALUtY CADMIUM DISSOLVED -0.037 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 -0.417 1.0 1.000 -3.000 UG/L 42 11/66 09/97
29 LEAD DISSOLVED 60.000 0.0 60.000 60.000 UG/L I 09/89 09/89
30 AIERCUR}• DISSOLVED -0.100 0.0 -0.100 -0.100 UG/L 3 04/88 09/89
71 TOTAL -0.217 0.7 0.200 -0.500 UG/L 8 09/73 04/82
72 TOTAL RECOV -0.088 0.2 0.500 -0.500 UG/L 32 09/75 09/97
33 SELENRR.1 DISSOLVED -0.333 1.2 1.000 -1.000 UG/L 7 04/88 09/89
3; TOTAL -1.000 0.0 -1.000 -1.000 UG/L 6 11/86 02/68
3S TOTAL RECOV -1.472 2.1 1.000 -10.000 UG/L 36 Ob/87 09/97
36 SILVER DISSOLVED -1.000 0.0 -1.000 -1.000 UG/L 2 04/88 07/88
}7 TOTAL RECOV -0.421 07 2.000 -3.000 UG/L 42 11/86 09/97
J8 SECONDARY COPPER TOTAL -25.000 0.0 -23.000 -25.000 UG/L 1 09/75 09/75
TABLE l0A SITE: 900 (09247900)