1989-07-27_REPORT - C1981033

• Permit No: C1981033
• IBM Index Class Name: Report
• Doc Date: 7/27/1989
• Doc Name: MULTI-SEAM SUBSIDENCE STUDY
• From: GEOWEST COLORADO SPRINGS, INC
• Annual Report Year: 1989
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

:AR COAL COMPANY - SUBSIDENCE MONITORING SYSTEM DATABASE
COORDINATES: INCREMENTAL CHANGES: CUMULATIVE CHANGES:
---------------------------
DATE STATION NORTHING EASTING ELEVATION NORTH EAST ELEV. NORTH EAST ELEV.
.-.-.-------------------------------------------------------------------------------------------------------
MEAN:
COEFF.OF VARIATION:
Aug-85 U10 NOT TIED IN THIS SURVEY
Jul-86 U10 402421.13 1440B65.D9 6682.56 0.00 0.00 0.00 0.00 0.00 0.00
Nov-86 U10 402421.32 1440865.23 6682.41 0.19 0.14 -0.15 0.19 0.14 -0.15
Jul-87 U10 402421.42 1440865.42 6682.43 0.10 0.19 0.02 0.29 0.33 -0.13
Oct-87 U10 402421.52 1440865.48 6682.52 0.10 0.06 0.09 0.39 0.39 -0.04
Jun-88 U10 402421.56 1440865.48 6682.37 0.D4 0.00 -0.15 0.43 0.39 -0.19
Nov-88 Uto 402421.62 1440865.50 6682.38 0.06 0.02 0.01 0.49 0.41 -0.18
MEAN:
COEFF.OF VARIATION:
Aug-85 U11 NOT 71ED IN THIS SURVEY
Jut-86 U11 401405.76 1440865.24 7335.14 0.00 0.00 0.00 0.00 0.00 0.00
Nov-86 Ull 401407.06 1440865.20 7334.60 1.30 -0.04 -0.54 1.30 -0.04 -0.54
Jul-87 Ull 401405.85 1440865.20 7335.21 -1.21 0.00 0.61 0.09 -0.04 0.07
Oct-87 Ull 401405.81 1440865.28 7335.14 -0.04 0.08 -0.07 0.05 0.04 0.00
Jun-88 Ull 401405.91 1440865.46 7335.04 0.10 0.18 -0.10 0.15 0.22 -0.10
Nov-88 U11 401405.93 1440865.31 7334.95 0.02 -0.15 -0.D9 0.17 0.07 -0.19
MEAN:
COEFF.OF VARIATION:
Aug-85 U21 NOT TIED IN THIS SURVEY
Jul-86 U21 402199.11 1439434.26 6689.58 0.00 0.00 0.00 0.00 0.00 0.00
Nov-86 U21 402199.03 1439433.98 6687.97 -0.08 -0.28 -1.61 -0.08 -0.28 -1.61
Jul-87 U21 402199.84 1439434.D9 6687.08 0.81 0.11 -0.89 0.73 -0.17 -2.50
Oct-87 U21 402199.82 1439434.22 6687.24 -0.02 0.13 0.16 0.71 -0.04 -2.34
Jun-88 U21 402199.78 1439434.16 6687.14 -0.04 -0.06 -0.10 0.67 -0.10 -2.44
Nov-88 U21 402199.68 1439434.18 6687.13 -0.10 0.02 -0.01 0.57 -0.08 -2.45
MEAN:
COEFF.OF VARIATION:
Aug-85 U22 NOT TIED IN THIS SURVEY
Jul-86 U22 401687.99 1439425.44 6997.50 0.00 0.00 0.00 0.00 0.00 0.00
Nov-86 U22 401688.00 1439425.40 6997.37 0.01 -0.04 -0.13 0.01 -0.04 -0.13
Jut-87 U22 NOT TIED IN THIS SURVEY 0.15 -0.06 -0.48
Oct-87 U22 401688.28 1439425.36 6996.67 0.29 -0.08 -0.83
Jun-88 U22 401688.27 1439425.34 6996.58 -0.01 -0.02 -0.09 0.28 -0.10 -0.92
Nov-88 U22 401688.16 1439425.38 6996.62 -0.11 0.04 0.04 0.17 -0.06 -0.88
MEAN:
COEFF.OF VARIATION:
Aug-85 U13 404387.70 1443503.79 6119.22 0.00 0.00 0.00 0.00 0.00 0.00
Jul-86 U13 404390.05 1443503.17 6117.58 2.35 -0.62 -1.64 2.35 -0.62 -1.64
Nov-86 U13 404390.06 1443503.11 6117.49 0.01 -0.06 -0.09 2.36 -0.68 -1.73
Jul-87 U13 404390.52 1443503.12 6117.40 0.46 0.01 -0.D9 2.82 -0.67 -1.82
Oct-87 U13 404390.57 1443503.24 6117.38 0.05 0.12 -0.02 2.87 -0.55 -1.84
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