REP01710

• Permit No: C1981019
• IBM Index Class Name: Report
• Doc Date: 12/11/2001
• Doc Name: 1997 REPORT AND Exhibit 1
• Permit Index Doc Type: ANNUAL RECLAMATION REPORT
• Media Type: D
• Archive: No

Colowyo Coal Company
COLONYO MINE
Station: NUGSC
Sample Range: Through 12/11/97
Sample Field Field Field lab Lab
Date pH Temp Conduct pH ConducT
S.U. deg C undo/cm S.U. umho/cm
10/15/92 N 17.0 N 8.40 1430
11/23/92 N 1.0 N 8.20 1500
12/17/92 N 1.0 N 8.10 1670
01/19/93 N 4.0 N 8.10 2480
02/27/93 N 3.0 N 8.00 1780
03/13/93 N 2.0 N 8.10 1470
04/21/93 N 2.0 1520 8.00 1490
05/27/93 N 17.0 890 7.90 758
06/01/93 N 9.0 976 8.30 902
07/30/93 N 15.0 1710 7.60 1680
08/23/93 N 10.0 1540 8.20 1560
09/14/93 N 13.0 1550 8.30 1580
10/19/93 N 12.0 1510 6.00 1525
11130/91 N 2.0 1480 8.40 1502
12/01/93 N 2.0 1510 8.00 1550
01718)94 N 110 1520 8.20 1551
02/27/94 N 4.0 1100 8.00 1110
03/21/94 N 2.0 1450 8.50 1470
04/19/94 N 12.0 1340 8.30 1350
05(31/94 N 10.0 1310 8.20 1349
06/01/94 N 9.0 1310 8.30 1348
07/22/94 N 12.0 1570 8.10 1660
08/23/94 N 8.0 1700 8.30 1750
09/30/94 N 12.0 1700 8.40 1760
10/21/94 N 12.0 1750 8.30 1780
11/18/94 N 3.0 1800 8.10 1820
12/13/94 N 2.0 1800 7.90 1850
01/78/95 N 1.0 1640 8.00 1690
02/28/95 N 6.0 1620 8.00 1620
03/15/95 N 5.0 1630 7.80 1600
04/26/95 N 11.0 1530 8.30 1500
05/23/95 N 10.0 910 8.20 936
06/19/95 N 12.0 1090 8.30 1060
07/26/95 N 10.0 1320 7.60 1340
08/24/95 N 12.0 1470 8.20 1490
09/13/95 N 13.0 1510 8.30 1490
10/25/95 N 3.0 1540 8.20 1550
11/29/95 N 2.0 1450 8.30 1490
TDS Phosp. Bicarb NH3 N03+N02
(180) TSS as P as CaC03 504 as N as N As Ca Fe Pb Mg Mn
mg/l mg/l mg/l mg/l mg/l mg/L mg/l mg/L mg/l mg/L mg/l m9/! mg/L
1264 2.0 0.029 334.00 626.00 0.22 4.65 0.001 125.00 0.020 0.020 135.000 0.010
1188 2.0 0.021 394.00 591.00 0.28 4.29 0.001 125.00 0.020 0.020 125.000 0.020
N 12.0 N N N N N N N N N N N
N 2.0 N N N N N N N N N N N
N 4.0 N N N N N N N N N N N
1180 20.0 0.020 402.00 595.00 0.16 3.52 0.002 130.00 0.130 0.020 123.000 0.020
N 22.0 N N N N N N N N N N N
N 994.0 N N N N N N N N N N N
592 136.0 0.160 306.00 220.00 0.17 1.93 0.001 77.00 2.600 0.020 56.000 0.140
N 4.0 N N N N N N N N N N N
1144 4.0 0.007 374.00 572.00 0.07 5.06 0.001 124.00 0.020 0.020 129.000 0.010
N 2.0 N N N N N N N N N N N
N 22.0 N N N N N N N N N N N
1098 2.0 0.005 330.00 375.00 0.05 4.50 0.002 129.00 0.070 0.020 123.000 0.030
N 10.0 N N N N N N N N N N N
N 6.0 N N N N N N N N N N N
N 362.0 N N N N N N N N N N N
1082 14.0 0.029 404.00 494.00 0.10 3.32 0.001 127.00 0.320 0.020 110.000 0.060
N 26.0 N N N N N N N N N N N
N 78.0 N N N N N N N N N N N
958 72.0 0.061 396,00 442.00 0.05 2.58 0.001 112.00 2.320 0.020 103.000 0.110
N 18.0 N N N N N N N N N N N
1388 12.0 0.019 384.00 638.00 0.13 6.00 0.002 133.00 0.340 0.020 159.000 0.050
N 2.0 N N N N N N N N N N N
N 5.0 N N N N N N N N N N N
1440 5.0 0.011 430.00 740.00 0.06 6.90 0.001 140.00 0.040 0.020 150.000 0.014
N 8.0 N N N N N N N N N N N
N 5.0 N N N N N N N N N N N
N 5.0 N N N N N N N N N N N
1200 5.0 0.009 388.00 610.00 0.06 3.51 0.001 141.00 0.090 0.020 132.000 0.013
N 20.0 N N N N N N N N N N N
650 5.0 0.160 264.00 250.00 0.05 1.77 0.002 95.00 6.350 0.020 67.300 0.230
N 68.0 N N N N N N N N N N N
N 48.0 N N N N N N N N N N N
N 24.0 N N N N N N N N N N N
1130 5.0 0.017 377.00 547.00 3.84 3.84 0.001 117.00 0.180 0.020 128.000 0.020
N 5.0 N N N N N N N N N N N
N 22.0 N N N N N N N N N N N
Hg Se Na Zn
mg/l mg/l mg/L m9/l
0.00010 0.020 48.00 0.010
0.00010 o.DOS sD.oo 0.010
N N N N
N N N N
N N N N
0.00010 0.012 53.00 0.010
N N N N
N N N N
0.00010 0.004 18.00 0.140
N N N N
0.00020 0.012 48.00 0.010
N N N N
N N N N
0.00020 0.012 51.00 0.010
N N N N
N N N N
N N N N
0.00020 0.009 42.00 0.010
N N N N
N N N N
0.00020 0.008 39.00 0.010
N N N N
0.00020 0.019 75.00 0.010
N N N N
N N N N
0.00020 0.019 61.00 0.010
N N N N
N N N N
N N N N
0.00020 0.015 53.10 0.020
N N N N
0.00020 0.005 23.60 0.050
N N N N
N N N N
N N N N
0.00020 0.013 49.50 0.020
N N N N
N N N N
02f 10/98
Note: N => No measurement