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~LEY COAL CORPORATION • •
1997 ANNUAL HYDROLOGIC REPORT
SUMI1fARY OF WATER QUALITY DATA rmnnury of w~4r quWly d~46rw'
ArenBe SW. Modmam Mbdmom UNIr ComR Bed End
1 PHYSICAL PROPERTIES TEMPERATURE FIELD 10.634 3.1 19.000 3.600 DEGREES C 39 03!79 09N7
2 CONDUCTIVITY FIELD 1367.158 450.2 2390.000 100.000 UMHOS/CM 57 07!79 09/-7
3 LAB 1567.286 140.5 1820.000 1210.000 UMHOS/CM 21 12/87 09N7
0 PH FELD 7.331 0.6 9.500 6.320 PH 37 07!79 09/97
S LAB 7.650 0.4 7.900 7.400 PH 2 O5N7 09N7
6 ALKALMFFY TOTAL 417.277 23.4 452.000 346.000 MG/L 22 10/86 09/97
7 ACIDITY AS CAC03 12.000 0.0 12.000 12.000 MG/L 1 O7/81 07/81
8 HARDNESS TOTAL 364.434 263.0 1000.000 -14.000 MG/L 56 03(19 09/97
9 SOLIDS DISSOLVED 1137.929 362.4 2770.000 65.000 MG/L 56 03!79 09197
IO SUSPENDED 2.000 0.0 2.000 2.000 MG/L 1 09/90 09N0
Il CATIONS CALCRIM DISSOLVED 77.134 46.9 213.000 4.000 MG/L 56 03/79 09/97
12 MAGNESRIM DISSOLVED 49.175 36.7 139.000 -1.000 MG/L 36 03(19 09/97
13 SODR7M DISSOLVED 333.821 154.9 642.000 9.000 MG/L 36 03/79 09/97
14 POTASSIUM DISSOLVED 3.146 l.9 9.400 1.200 MG/L 26 03/79 04/83
15 SAR NOT APPLICABLE 7.376 5.9 22.938 0.709 UNDEFINED 102 03/79 09/97
16 ANIONS BICARBONATE AS HC03 435.036 176.9 874.740 28.000 MG/L 34 03/79 09/97
17 CARBONATE AS C03 7,200 11.9 39.600 -2.000 MG/L 18 02/80 09/97
IB HYDROh'IDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 6 OSNS 09P97
19 CHLORIDE NOT APPLICABLE 13.737 9.7 43.000 -3.000 MG/L 30 07/79 04/86
20 SULFATE NOT APPLICABLE 538.321 337.0 1730.000 19.000 MG/L 56 03/79 09/97
21 PRIf1L4R}' ARSENIC DISSOLVED -2.000 1.4 -1.000 -5.000 UG/L 14 07/60 10/86
2i BARRIPI DISSOLVED -86.927 282.4 600.000 •700.000 UG/L 13 04/79 03/82
23 CADMRIPI DISSOLVED -1.906 6.3 1.600 -20.000 UG/L 32 03/81 09/97
24 TOTAL RECOV 0.100 0.0 0.100 0.100 UG/L 1 09N0 09N0
25 LEAD DISSOLVED -38.400 90.7 200.000 -200.000 UG/L 25 03/81 09/97
26 MERCUR}• DISSOLVED -0.165 0.9 4.000 -2.000 UG/L 34 03/80 09/97
27 TOTAL RECOV -0.100 0.0 -0.100 -0.100 UG/L I 09/90 09f90
28 SELENRJAI DISSOLVED -1.676 1.8 -1.000 -10.000 UG/L 34 03/80 09/97
39 TOTAL RECOV -1.000 0.0 -1.000 -1.000 UG/L I 09/90 09/90
30 SILVER DISSOLVED X0.000 0.0 -00.000 -40.000 UG/L 2 07/81 07/62
31 TOTAL RECOV -0.500 0.0 -0.500 -0.300 UG/L I 09/90 09/90
33 SECONDARY COPPER DISSOLVED -7.039 45.9 100.000 -J0.000 UG/L 17 03/79 04/83
33 ZINC DISSOLVED 38.875 68.4 290.000 -10.000 UG/L 24 071.79 10/86
34 TOTAL RECOV 40.000 0.0 40.000 40.000 UG/L 1 09N0 09/90
35 IRON DISSOLVED 292.909 337.5 3290.000 60.000 UG/L 55 03/79 09/97
36 TOTAL RECOV 680.000 0.0 680.000 680.000 UG/L 1 09/90 09/90
37 A1ANGANESE DISSOLVED 20.364 79.4 150.000 -30.000 UG/L 55 OJi79 09/97
3g TOTAL RECOV 20.000 0.0 20.000 20.000 UG/L I 09/90 09/90
TABLE 6A SITE: 087758 (008-77-58)