REP03538

• Permit No: C1981019
• IBM Index Class Name: REPORT
• Doc Date: 4/6/2007
• Doc Name: 2006 AHR & ARR Section 7 Exhibit 7A to Section 9 Exhibit 9A
• From: Colowyo Coal Company L.P.
• To: DRMS
• Annual Report Year: 2006
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

WEST PIT FILL - 7150 EAST MONUMENT
DATE ELEV. NORTHING FASTING
• 0.000 7146.200 348360.950 1351437.760
,~-15-96 -0.430 0.082 -0.016
JUN-6-96 -0.455 0.153 0.010
AUG-13-96 -0.460 0.152 -0.007
OCT-10-96 -0.400 0.142 -0.004
MAR-11-97 -0.690 0.408 -0.385
JUN-14-97 -1.040 0.539 -0.036
JUL-26-97 -1.080 0.577 0.012
OCT-20-97 -1.200 0.525 -0.006
MAR-24-98 -1.350 0.586 -0.073
JUN-25-98 -1.520 0.655 -0.091
AUG-30-98 -1.600 0.640 -0.070
OCT-8-98 -1.620 0.640 -0.080
MAR-23-99 -1.740 0.727 -0.116
JUN-2-99 -1.780 0.640 -0.174
AUG-27-99 -1.730 0.651 -0.153
OCT-9-99 -1.860 0.635 -0.172
MAR-28-00 -1.920 0.681 -0.195
JUN-7-00 -1.930 0.640 -0.250
SEPT-8-00 -1.990 0.622 -0.189
•T-16-00 -1.970 0.620 -0.207
R-28-01 -2.010 0.657 -0.297
~_,J-14-01 -2.050 0.652 -0.288
SEPT-10-01 -2.040 0.668 -0.291
OCT-07-01 -2.150 0.673 -0.286
MAR-23-02 -2.090 0.684 -0.304
JUN-19-02 -2.130 0.688 -0.307
SEPT-5-02 -2.090 0.701 -0.290
OCT-5-02 -2.130 0.687 -0.316
MAR-28-03 -2.140 0.710 -0.330
MAY-17-03 -2.200 0.705 -0.358
AUG-27-03 -2.190 0.720 -0.320
OCT-21-03 -2.180 0.717 -0.326
MAR-19-04 -2.200 0.728 -0.353
JUN-2-04 -2.220 0.734 -0.353
SEPT-3-04 -2.260 0.731 -0.356
OCT-8-04 -2.270 0.728 -0.344
MAR-11-05 -2.250 0.748 -0.383
MAY-28-05 -2.310 0.720 -0.420
SEPT-6-05 -2.340 0.730 -0.390
T-22-05 -2.300 0.730 -0.420
~
R-7-06 -2.330 0.740 -0.420
J-6-06 -2.350 0.730 -0.440
StPT-15-06 -2.370 0.720 -0.450
NOV-02-06 -2.360 0.760 -0.450