1992-02-10_GENERAL DOCUMENTS - C1981017 (2)

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SUMMARY OF SUBSIDENCE SURVEY DATA M -CONTINENT RESOURCES INC. COAL BASIN MINES SUBSIDENCE MONITORING POINT MC! S U R V E Y D A T E AUG 1981 JUL 1982 AUG 1983 1.0 BACKS I GHT STAT i ON TP- y TP- v T p- y 2.0 INSTRUMENT STATION TP-s Tl°- S TP--5- NORTH COORD. (MINE (RID) //R9y S9 /t Y,S4 /l 991l. 6.4 EAST COORD. (MINE GRID) S,yg 41949.S. y8 9 90s;83 ELEVATION (ft) /iS-4/-193 113-ril.o3 1/5y0.65- HE 1 GHT OF TRANSIT ( t) 1, 31 / . 3 / l• 3/ 3.0 BACKSIGHT AZIMUTH FIELD ERECT 3?ke /�� / a o 14 v FIELD INVERTED / o �� a e s o // ��o /19 0 a FIELD AZ 1 MUTH 3 ° �' �" 3ZB° ,�,' �" 3o° !IL' S' " TRUE AZIMUTH ,3 ° f-, JL" E° �� " z ° 8 ' 590 4.0 BACKS I GHT CORR. o00 ° o o' -o/" pod' Vol a a" oo d o o o 0" 5.0 FORESIGHT AZIMUTH FIELD ERECT /Sl ° Sb' 2 y" ° 6- 0 58' LC" FIELD INVERTED 331 ° 1A' Z 2 " 33/° jos' ,Z�" ° FIELD AZIMUTH /s/ ° 'Z-3 " /5-/° 5b, 7-4 TRUE AZIMUTH 2 2 " /, ° 5' ZL" E° S8 I 6.0 FORESIGHT VERTICAL ANGLE FIELD ERECT o4/° 0q , y3 " �4 ° �' yo " q° 09 FIELD INVERTER �° A1 ,« zue " �o � o a FIELD ANGLE 0410 oq ' Sy" Q j° Pa' L" ai, gam' V3 " HEIGHT OF TARGET (f ) O, 4S 7.0 HORIZONTAL DISTANCE MEASURED SLOPE DIST (ft) '7/ 5-7. l7 -7/6'7 /7 /5-7 04. ATMOSPHERIC PRESS. An H20) l 9..s/ 1 ti,5-4 / , S2 TEMPERATURE (Degree F) 57 6 z 2 COOR. FACTOR (ft) 1.ti5 /, TRUE SLOPE D I STAKE (ft) -7 1s9. /G 71 SS. /G 0-5- HORIZONTAL DIST. (ft) 7/57.6$ -7/57. 68 -7/57,6-5 8.0 DIFFERENTIALS NORTH COORD I NATE - 6-3/ 8.24 - (.3 /6,33 - 6 3/8, 33 EAST COORD I NATE 3 36 3.3 2. 336 Z l 3342. ?a ELEVATION (ft) -/3'-/.Sd-/ -/3'/,y7 - /341, /S- NORTH COORD I NATE (M NE GRID) 5-676 . 33 S6 76, 2 L 5"6 7L.33 EAST COORD I NATE (MINE GRID) alz8. P 8 Z 6916 6 1? 9 26 8.9/ ELEVATION (ft)