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-AR COAL COMPANY - SUBSIDENCE MONITORING SYSTEM DATABASE <br /> COORDINATES: INCREMENTAL CHANGES: CUMULATIVE CHANGES: <br /> DATE STATION NORTHING EASTING ELEVATION NORTH EAST ELEV. NORTH EAST ELEV. <br /> ------------------------------------------------------------------------------------------------------------ <br /> Jun-88 U13 404390.63 1443503.20 6117.37 0.06 -0.04 -0.01 2.93 -0.59 -1.85 <br /> Nov-88 U13 4D4390.69 1"3503.18 6117.34 0.06 -0.02 -0.03 2.99 -0.61 -1.88 <br /> MEAN: <br /> DEFF.OF VARIATION: <br /> Aug-85 U14 404479.38 1443610.21 6090.81 0.00 0.00 0.00 0.00 0.00 0.00 <br /> Jul-86 U14 404479.31 1443610.18 6089.79 -0.07 -0.03 -1.02 -0.07 -0.03 -1.02 <br /> Nov-86 U14 404479.29 1443610.18 6089.69 -0.02 0.00 -0.10 -0.09 -0.03 -1.12 <br /> Jul-87 U14 404479.42 1443610.35 6089.63 0.13 0.17 -0.06 0.04 0.14 -1.18 <br /> Oct-87 U14 404479.44 1443610.34 6089.60 0.02 -0.01 -0.03 0.06 0.13 -1.21 <br /> Jun-88 U14 404479.60 1443610.21 6099.75 0.16 -0.13 0.15 0.22 0.00 -1.06 <br /> Nov-88 U14 4D4479.48 1443610.53 6059.53 -0.12 0.32 -0.22 0.10 0.32 -1.28 <br /> MEAN: <br /> )EFF.OF.VARIATION: <br /> Au9-85 U15 404474.85 1443895.66 6107.75 0.00 0.00 0.00 0.00 0.00 0.00 <br /> Jul-86 U15 404474.78 1443895.68 6107.39 -0.07 0.02 -0.36 -0.07 0.02 -0.36 <br /> NOV-86 U15 404474.74 1443895.63 6107.33 -0.04 -0.05 -0.06 -0.11 -0.03 -0.42 <br /> Jut-87 U15 4D4474.84 1443895.84 6107.36 0.10 0.21 0.03 -0.01 0.18 -0.39 <br /> Oct-87 U15 4D4474.83 1443895.84 6107.36 -0.01 0.00 0.00 -0.02 0.18 -0.39 <br /> Jun-B8 U15 4D4474.98 1443895.70 6107.72 0.15 -0.14 0.36 0.13 0.D4 -0.03 <br /> Nov-88 U15 404474.85 1443896.12 6107.35 -0.13 0.42 -0.37 0.00 0.46 -0.40 <br /> MEAN: <br /> )EFF.OF VARIATION: <br /> Aug-85 U16 404057.57 1441900.00 6267.62 0.00 0.00 0.00 0.00 0.00 0.00 <br /> Jul-86 U16 404057.62 1441799.98 6270.39 0.05 -0.02 2.77 0.05 -0.02 2.77 <br /> Nov-86 U16 404057.61 1441799.98 6270.36 -0.01 0.00 -0.03 0.D4 -0.02 2.74 <br /> Jul-87 U16 404057.70 1441800.D4 6270.33 0.D9 0.06 -0.03 0.13 0.04 2.71 <br /> Oct-87 U16 404057.73 1441800.05 6270.37 0.03 0.01 0.04 0.16 0.05 2.75 <br /> Jun-BB U16 404057.86 1441800.D6 6270.35 0.13 0.01 -0.02 0.29 0.06 2.73 <br /> Nov-88 U16 404057.85 1441800.07 6270.38 -0.01 0.01 0.03 0.28 0.07 2.76 <br /> MEAN: <br /> )EFF.OF VARIATION: <br /> Aug-85 U17 404311.88 1442097.44 6164.21 0.00 0.00 0.00 0.00 0.00 0.00 <br /> Jul-86 U17 404311.92 1442097.39 6166.85 0.D4 -0.05 2.64 0.04 -0.05 2.64 <br /> Nov-B6 U17 4D4311.95 1442097.43 6166.80 0.03 0.04 -0.05 0.07 -0.01 2.59 <br /> Jul-87 U17 4D4312.12 1442097.47 6166.74 0.17 0.04 -0.06 0.24 0.03 2.53 <br /> Oct-87 U17 4D4312.17 1442097.42 6166.75 0.05 -0.05 0.01 0.29 -0.02 2.54 <br /> Jun-88 U17 404312.11 1442097.54 6166.72 -0.06 0.12 -0.03 0.23 0.10 2.51 <br /> Nov-88 U17 404312.19 1442097.43 6166.70 0.08 -0.11 -0.02 0.31 -0.01 2.49 <br /> MEAN: <br /> )EFF.OF VARIATION: <br /> Aug-85 U18 404313.78 1442360.07 6158.62 0.00 0.00 0.00 0.00 0.00 0.00 <br /> Jul-86 U18 404313.82 1442360.03 6161.22 0.04 -0.D4 2.60 0.04 -0.04 2.60 <br /> ,'�' Nov-86 U18 404313.81 1442360.01 6161.24 -0.01 -0.02 0.02 0.03 -0.06 2.62 <br />