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 wmmary of wester quWty dita.b~w
Averr`e Std. Madmmn 111hJmmn UnW Coma Bede Fid
1 PHYSICAL PROPERTIES TEMPERATURE FIELD 12.673 7.1 29.000 0.200 DEGREES C 138 10/83 09/97
2 CONDUCTIVCFY FIELD 677.000 180.0 1370.000 80.000 UMHOS/CM 222 09/75 09N7
3 LAB 720.834 232.4 1740.000 423.000 UMHOS/CM 41 10/86 09N7
4 PH FlELD 8.264 0.4 9.800 7.000 PH 217 09(73 09/97
S LAB 8.362 O.l 8.300 8.100 PH 10 10/86 09/97
6 ALKALINITY TOTAL 214.575 46.9 301.000 100.000 MG/L 106 10!75 09/97
7 HARDNESS TOTAL 305.823 62.4 430.000 148.000 MG/L 120 10(73 09/97
8 SOLIDS DISSOLVED 463.209 130.1 920.000 244.000 MG/L 43 10/86 09N7
9 SUSPENDED 220.563 550.0 3390.000 -5.000 MG/L 64 11/83 09N7
]0 SETTLEABLE -0.200 0.0 -0.200 -0.200 A1L/L I 06/92 06f92
11 Oll&GREASE VISIBLE NOT APPLICABLE 2.000 0.0 2.000 2.000 UNDEFINED l6 07/87 07/89
12 CATIONS CALCIU61 DISSOLVED 70.933 13.3 103.000 36.000 MG/L 120 10/75 09/97
13 MAGNESRJM DISSOLVED 31.290 7.5 33.000 14.000 MG/L 120 10(75 09N7
14 SODRJM DISSOLVED 29.248 11.8 64.000 11.000 MG/L 69 07/80 09/97
15 POTASSIUM DISSOLVED 3.463 2.0 19.000 1.300 MG/L 79 10(73 02/88
16 SAR NOT APPLICABLE 0.697 0.2 1.322 0.079 UNDEFINED 118 07/80 09N7
17 ANIONS BICARBONATE AS HC03 260.056 57.0 370.000 120.000 MG/L 72 10/75 09N7
18 CARBONATE AS CO7 4.786 5.2 18.000 -2.000 A1G/L 33 12/73 09/97
19 HYDROXIDE AS OH -2.000 0.0 -2.000 -2.000 MG/L 13 04/93 09/97
20 CHLORIDE NOT APPLICABLE 4.636 1.4 8.100 1.100 MG/L 76 10!13 02/88
21 SULFATE NOT APPLICABLE 144.539 57.8 364.000 39.000 MG/L 113 IOr15 09/97
22 PRIMARY CADMMN TOTAL -0.556 2.4 4.000 -2.000 UG/L 9 03/76 04/81
23 TOTAL RECOV -0.426 0.9 1.000 -5.000 UG/L 47 10/86 09/97
24 TIERCURY TOTAL -0.227 0.3 0.500 -0.500 UG/L 11 10/75 08!79
25 TOTAL RECOV -0.063 0.3 1.300 -0.500 UG/L 34 09/75 09N7
26 SELENI[R.1 TOTAL -0.250 I.0 1.000 -1.000 UG/L 8 10/86 07/88
27 TOTAL RECOV -0.600 1.3 3.000 -1.000 UG/L 33 04/69 09197
28 SILVER TOTAL RECOV -0.328 0.3 -0.100 -1.000 UG/L 43 10/86 09/97
29 SECONDARY COPPER TOTAL RECOV 37.611 147.4 500.000 •20.000 UG/L 18 09/73 10/87
JO ZMC TOTAL 9.000 33.1 110.000 -20.000 UG/L I S 09/75 07/81
31 TOTAL RECOV 13.932 22.7 70.000 -10.000 UG/L 42 04/87 09/97
32 IRON DISSOLVED 50.785 90.4 620.000 -10.000 UG/L 65 09!75 09/86
33 TOTAL RECOV 7482.319 7994.1 52000.000 1.000 UG/L 91 09(75 09N7
J4 MANGANESE DISSOLVED 116.207 114.8 700.000 -10.000 UG/L 58 10/73 04N0
75 TOTAL RECOV 243.153 301.1 2400.000 10.000 UG/L 102 09/73 09/97
36 TRACE METALS BORON DISSOLVED 42.000 12.3 60.000 20.000 UG/L 10 12/83 07/87
;7 TOTAL 37.500 12.9 60.000 20.000 UG/L I6 10/83 09/63
3g MOL1'BDENUAI TOTAL RECOV -21.256 22.0 20.000 -50.000 UG/L 43 10/86 09f97
TABLE 12A SITE: 700 (09243700)