REP10071

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 2/2/2000
• Doc Name: 2ND HALF 1999 SUBSIDENCE REPORT
• From: TWENTYMILE COAL CO
• To: DMG
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

TABLE 3. FIRST HALF 1999 SUBSIDENCE REPORT SURVEY MONITORING DATA _ _ _
_ WESTERN AREA POWER ADMINISTRATION _POWE_R LINE _ __
PANEL NO. 5
DELTA DELTA DELTA GUM. CUM. CUM.
DATE STATION NORTHIN FASTING ELEVATION NORTH EAST ELEV. NORTH EAST ELEV.

5/15/99 W60 39328.255 27041.635 6817.420 0.000 0.000 0.000
5/20/99 W60 39328.140 27041.705 6817.435 -0.115 0.070 0.015 -0.115 0.070 0.015
5/21/99 W60 39328.275 27041.625 6817.415 0.135 -0.080 -0.020 0.020 -0.010 -0.005
5/22/99 W60 39328.210 27041,670 6817.410 -0.065 0.045 -0.005 -0.045 0.035 -0.010
5123!99 W60 39328.220 27041.665 6817.425 0.010 -0.005 0.015 -0.035 0.030 0.005
5/24/99 W60 39328.205 27041.665 6817.420 -0.015 0.000 -0.005 -0.050 0.030 0.000
5/25/99 W60 39328.130 27041.710 6817.430 -0.075 0.045 0.010 -0.125 0.075 0.010
5/26/99 W60 39328.095 27041.740 6817.420 -0.035 0.030 -0.010 -0.160 0.105 0.000
5/27/99 W60 39328.045 27041.760 6817.420 -0.050 0.020 0.000 -0.210 0.125 0.000
5/28/99 W60 39328.020 27041.785 6817.445 -0.025 0.025 0.025 -0.235 0.150 0.025
5/29/99 W60 39328.110 27041.740 6817.400 0.090 -0.045 -0.045 -0.145 0.105 -0.020
5130199 W60 39328.105 27041.755 6817.355 -0.005 0.015 -0.045 -0.150 0.120 -0.065
5/31/99 W60 39328.240 27041.655 6817.395 0.135 -0.100 0.040 -0.015 0.020 -0.025
6/1/99 W60 39328.140 27041.725 6817.350 -0.100 0.070 -0.045 -0.115 0.090 -0.070
6/2/99 W60 39328.000 27041.815 6817.375 -0.140 0.090 0.025 -0.255 0.180 -0.045
6/3/99 W60 39328.020 27041.805 6817.385 0.020 -0.010 0.010 -0.235 0.170 -0.035
6/4/99 W60 39328.075 27041.765 6817.385 0.055 -0.040 0.000 -0.180 0.130 -0.035
6!5/99 W60 39328.015 27041.815 6817.345 -0.060 0.050 -0.040 -0.240 0.180 -0.075
616/99 W60 39328.210 27041.690 6817.420 0.195 -0.125 0.075 -0.045 0.055 0.000
6/7/99 W60 39328.045 27041.785 6817.425 -0.165 0.095 0.005 -0.210 0.150 0.005
6/8/99 W60 39328.105 27041.755 6817.315 0.060 -0.030 -0.110 -0.150 0.120 -0.105
6/9/99 W60 39328.050 27041.790 6817.405 -0.055 0.035 0.090 -0.205 0.155 -0.015
6110/99 W60 39328.030 27041.800 6817.360 -0.020 0.010 -0.045 -0.225 0.165 -0.060
6/11199 W60 39328.135 27041.735 6817.395 0.105 -0.065 0.035 -0.120 0.100 -0.025
6/12/99 W60 39328.110 27041.760 6817.360 -0.025 0.025 -0.035 -0.145 0.125 -0.060
6/13/99 W60 39328.180 27041.725 6817.355 0.070 -0.035 -0.005 -0.075 0.090 -0.065
6114/99 W60 39328.115 27041.750 6817.395 -0.065 0.025 0.040 -0.140 0.115 -0.025
6/16/99 W60 39328.215 27041.675 6817.335 0.100 -0.075 -0.060 -0.040 0.040 -0.085
6/17/99 W60 39328.165 27041.725 6817.380 -0.050 0.050 0.045 -0.090 0.090 -0.040
6/18/99 W60 39328.010 27041.815 6817.385 -0.155 0.090 0.005 -0.245 0.180 -0.035
6/19/99 W60 39328.150 27041.725 6817.420 0.140 -0.090 0.035 -0.105 0.090 0.000
6/20/99 W60 39328.200 27041.700 6817.335 0.050 -0.025 -0.085 -0.055 0.065 -0.085
6/26/99 W60 39328.250 27041.670 6817.340 0.050 -0.030 0.005 -0.005 0.035 -0.080
7/4199 W60 39328.205 27041.705 6817.340 -0.045 0.035 0.000 -0.050 0.070 -0.080
7/10/99 W60 39328.070 27041.800 6817.405 -0.135 0.095 0.065 -0.185 0.165 -0.015
7!18/99 W60 39328.210 27041.710 6817.380 0.140 -0.090 -0.025 -0.045 0.075 -0.040
7/25/99 W60 39328.115 27041.750 6817.370 -0.095 0.040 -0.010 -0.140 0.115 -0.050

SurveyData 1 stHa1F99. xls 8 2/1 /00