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 1'AMPA~LEY COAL CORPORATION • •
1997 ANNUAL HYDROLOGIC REPORT
SUMMARY OF WATER QUALITY DATA nunmrary ofw~ter ga~INy dratabnr
Averfte Std. M~mum MWmam UNb Coatd Bed End
1 PHYSICAL PROPERTIES TEMPERATURE FIELD 9.787 3.9 20.000 2.000 DEGREES C 124 08/84 09/97
2 CONDUCTIVffY FIELD 1697.984 370.7 2420.000 517.000 UMHOS/CM 124 08/84 09N7
3 LAB 1770.000 452.4 2190.000 1040.000 UMHOS/CM 3 11/90 03N3
4 PH FIELD 7.459 0.3 8.500 6.700 PH 124 08/84 09N7
S ALKALINITY TOTAL 463.429 170.3 710.000 272.000 MG/L 7 10/86 03/93
6 HARDNESS TOTAL 893.444 101.4 1055.000 689.000 MG/L 9 03/86 03N3
7 SOLIDS DISSOLVED 1269.778 412.2 1788.000 632.000 MG/L 9 03/86 03/95
8 SUSPENDED 208.000 0.0 208.000 208.000 MG/L 1 06N1 06N1
9 CATIONS CALCRIM DISSOLVED 221.111 24.3 253.000 182.000 MG/L 9 07/86 03x95
10 MAGNESRJAI DISSOLVED 83.311 16.1 103.000 37.000 MG/L 9 03/86 0393
11 SODIUM DISSOLVED 101.411 22.6 127.000 68.000 MG/L 9 03/86 03/93
12 SAR NOT APPLICABLE 1.437 0.3 1.746 1.063 UNDEFINED 9 03/86 03/95
13 ANIONS BICARBONATE AS HC03 477.400 249.8 866.000 167.000 MG/L 9 03/66 03N5
14 CARBONATE AS C03 1.600 J.8 8.000 -2.000 MG/L S OJ/86 03N3
IS HYDROXIDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 1 07/95 03/93
16 CHLORIDE NOT APPLICABLE 13.500 0.7 14.000 13.000 MG/L 2 03/86 04/86
17 SULFATE NOT APPLICABLE 615.778 253.1 689.000 280.000 MG/L 9 03/86 03N5
18 PRIMARY ARSENIC DISSOLVED 1.373 2.I 3.000 -1.000 UG/L 3 04/86 01/87
19 CADMRJM DISSOLVED -4.371 7.3 0.100 -20.000 UG/L 7 04/86 07f93
20 TOTAL RECOV 0.400 0.0 0.400 0.400 UG/L 1 06/91 06/91
it LEAD DISSOLVED -7.300 23.0 30.000 -20.000 UG/L 4 11/90 OJNS
22 MERCURY DISSOLVED -0.043 0.3 0.400 -0.200 UG/L 7 04/86 03/95
27 TOTAL RECOV 0.600 0.0 0.600 0.600 UG/L I 06/91 06N1
24 SELENRJAI DISSOLVED 2.714 5.3 14.000 -1.000 UG/L 7 04/86 03N3
25 TOTAL RECOV 1.000 0.0 1.000 1.000 UG/L 1 06/91 06N1
26 SILVER TOTAL RECOV -0.300 0.0 -0.300 -0.300 UG/L 1 06/91 06/91
27 SECONDARI' ZINC DISSOLVED 23.J33 S.8 70.000 20.000 UG/L 3 04/86 01/87
26 TOTAL RECOV 150.000 0.0 130.000 150.000 UG/L I 06/91 06N1
29 IRON DISSOLVED 181.250 200.7 380.000 -60.000 UG/L 8 01/86 03/93
30 TOTAL RECOV 3740.000 0.0 3740.000 3740.000 UG/L 1 06/91 06N1
31 MANGANESE DISSOLVED 1283.375 1652.9 4300.000 -10.000 UG/L 8 03/86 03/93
32 TOTAL RECOV 140.000 0.0 140.000 140.000 UG/L I 06/91 06/91
33 TRACE METALS AfOL1'BDEMJAI DISSOLVED -20.000 20.0 -10.000 -50.000 UG/L 4 11/90 03N3
34 TOTAL RECOV -30.000 0.0 -50.000 -50.000 UG/L 1 06/9! O6N1
35 NUTRIENTS NITROGEN .UfA1RR.1-TOTAL 3.546 5.9 1J.100 0.090 A1G/L 8 04/86 03/93
36 AMMIA-FREE 0.028 0.1 0.104 -0.050 A1G/L 6 04/86 03/93
37 NITRATE 1.110 2.1 3.850 -0.020 A1G/L 7 10/86 03/95
38 NITRITE 4.990 7.1 10.000 -0.020 MG/L 2 10/86 03N3
TABLE JA SITE: OBAVI (008-AV-1)