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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 1981— 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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