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SUBSIDENCE MONITORING DATA <br />Semi-annual Report, June -December 1991 <br />Cyprus Empire Coal Corporation, Eagle Mine No. 5 <br />S-Series Line (perpendicular) <br /> 03/1988* Surve Elevations (ft) <br /> Profile Pre mining Previous <br />Monitoring Distance Elevation Survey Subsidence (ft) <br />Point (ft) Northin Eastin (ft) 04/17/91 07/27/91 This Period Total <br />SI 0 402299.8 1408229.6 7160.8 7154.1 7153.9 -0.2 -6.9 <br />S2 100 402200.1 1408218.5 7175.3 7166.7 7166.5 -D.3 -8.8 <br />S3 200 402100.8 1408208.0 7]86.0 7176.4 7176.2 -0.2 -9.8 <br />S4 300 402001.5 1408196.9 7195.6 7186.4 7186.1 -0.2 -9.5 <br />S5 400 40190].8 1408185.3 7203.4 7194.2 7194.0 -0.2 -9.4 <br />S6 500 40]802.9 1408175.9 7210.2 7202.2 7202.0 -0.2 -8.2 <br />S7 600 401703.9 _ 1408165.1 72]6.5 7212.1 7211.8 -0.3 -4.7 <br />S8 700 401605.3 _ <br />1408154.6 7226.5 1223.9 ______ ___ <br />7223.7 ~-D:~ T8 <br />S9 800 401506.2 1408144.2 7238.2 7236.5 7236.2 -0.3 -2.0 <br />S10 900 401406.8 1408134.0 725].3 7250.1 7249.9 -0.2 -1.4 <br />S11 1000 401307.2 1408123.5 7263.4 7262.7 7262.6 -0.2 -0.9 <br />S12 ]100 401207.1 1408113.6 7274.6 7274.1 7273.9 -0.2 -0.6 <br />S13 1150 401157.2 ]408106.1 7279.4 7278.9 7278.8 -0.1 -0.6 <br />514 ]210 401097.7 1408101.7 7284.9 7284.5 7284.4 -0.1 -0.5 <br />S15 ]240 401057.4 1408098.3 7286.9 7286.6 7286.4 -0.2 -0.5 <br />516 1340 400967.9 1408087.5 7292.4 7292.2 7292.0 -0.1 -0.4 <br />S17 1440 400868.8 1408076.8 7294.5 7294.4 7294.3 -0.1 -0.3 <br />* All pre-mining elevations represent post-f-seam mining surface elevations <br />