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<br /> Mid-Continent Resources, ! Inc .
<br /> 1988 Subsidence Monitoring Survey TABLE 2
<br /> COMPARISON OF 1981, 1984 AND 1988 BASIC DATA
<br /> CONTROL (TP) POINTS
<br /> NORTH COORDINATE
<br /> POINT _19@L 1984 1988
<br /> TP-1 11,202.99 11, 202 . 33 11, 201.72
<br /> TP-2 16,975.26 16,975. 30 16,974. 45
<br /> TP-3 20, 486.81 20, 486 .96 20, 486. 40
<br /> TP-4 17, 301.21 17,301. 31 17, 300. 21
<br /> TP-5 11,994 .59 11,994 .94 11,994 .95
<br /> TP-6 * 11,395. 78 11, 394.16
<br /> EAST COORDINATE
<br /> POINT 1981 1984 1988
<br /> TP-1 3, 839 .54 3,839 . 72 3, 839 . 40
<br /> TP-2 520.04 520.71 520.59
<br /> TP-3 684 .07 684 .65 684.08
<br /> TP-4 1,630.55 1,630.96 1,630.92
<br /> TP-5 4,905.48 4,905.71 4,905.67
<br /> TP-6 * 2,830.90 2,831.16
<br /> ELEVATION
<br /> POINT 1981 1984 1988
<br /> TP-1 11,844 .52 11,843.55 11,842. 11
<br /> TP-2 11, 842.40 11,842.44 11,842.43
<br /> TP-3 11, 446. 29 11,446. 25 11, 446.19
<br /> TP-4 11,729 .53 11,729 .40 11,728.72
<br /> TP-5 11, 598 .83 11,598 .17 11, 597 .09
<br /> TP-6 * 11,750.17 11,746.58
<br /> *Installed 1984 .
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