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S Y OF SUBSIDENCE SURVEY DATA <br /> M ONTINENT RESOURCES, INC. <br /> COAL BASIN MINES <br /> SUBSIDENCE MONITORING POINT MCO Z <br /> S U R V E Y D A T E <br /> AUG 1981 JUL 1982 AUG 1983 <br /> 1 .-0 BACKS I GHT STAT 1 ON TP- 4/ TP- q TP-y <br /> 2.0 INSTRUMENT STATION TP-.S TP- S" TP- S <br /> NORTH COORD. (MINE ID) // 94 Y. // N.S9 /-�4Y,6 6 <br /> EAST COORD. (MINE GRID) Y9&S. 44 y9os4/8 vgp - 63 <br /> ELEVATION (ft) /isy/•o3 �o. 6S <br /> HEIGHT OF TRANSIT (f�) /. 3/ /. 31 /• 3/ <br /> 3.0 BACKSIGHT AZIMUTH <br /> FIELD ERECT Z ° /g // " 226* /9t37-° <br /> FIELD INVERTED / ° �t Q Z" a ° �' �" / ° L � - <br /> FIELD AZ 1 MUTH ? 8° f,�' Qom" ,'�2 d° �' f�" 3z8° �' Ste" <br /> TRUE AZIMUTH � +° �t L" lap /S t // " UP /y t jw <br /> 4.6 BACKSIGHT CORR. DOy° OJ t toZ" oov° OOt 00" <br /> 5.0 FORESIGHT AZIMUTH <br /> FIELD ERECT l 6bo o/ t 02" age of ov" ° Of O(o" <br /> FIELD INVERTED Oof3° ay 000° p1_t <br /> FIELD AZIMUTH a I7 ' o�f" / ° 771 ob " We p1,' 03" <br /> TRUE AZIMUTH o/ ' 7" ag° oft 232 <br /> 6.0 FORESIGHT VERTICAL LE <br /> FIELD ERECT 0070 551 L" ee _*-V w .S6 t ar <br /> FIELD INVERTER 27Z° Qom' " ° O,�' ev nZ° ' <br /> FIELD ANGLE p' SS 30" oee jw 1 " <br /> HE 1 GHT OF TARGET (ft) O. 4S 0.95 O.4� <br /> 7.0 HORIZONTAL DISTANCE <br /> MEASURED SLOPE DISTiln <br /> (ft) 267-7 OY Z 677.o 2 2677.Zo <br /> ATMOSPHERIC PRESS. H20) /q-S - /4.S8 /9- Z <br /> TEMPERATURE (Degrees F) Sb 67- <br /> YL <br /> COOR. FACTOR (ft) 0,7q O. 7N O� 7y <br /> TRUE SLOPE D I STANCE�(ft) Z67 7.7 8 Z677. 76 -7 267 9 / <br /> HORIZONTAL DIST. (f ) Z676. O Z _ Z 676. o l 26 7L. Z/ <br /> 8.0 DIFFERENTIALS <br /> NORTH COORDINATE - 2 6 y9.86_ -24 y4,06'- -ZL SO"05- <br /> EAST COORDINATE -373.26 - 373.2N - 373.27 <br /> ELEVATION (ft) 98,81__ �$,_ 91 /6 <br /> NORTH COORDINATE (MI E GRID) q 3 Y y.73 9341 y.7 y 93 ys', L 1. <br /> EAST COORDINATE (MI GRID) _ 4 S 32.2 0 45 3 Z.2 eI532. z/ <br /> ELEVATION (ft) 69. 72__ //6eK. B / <br /> *e*eaFa♦ateere*r*eer**ee**e se•ee**rrettese*e*e*e*�e**r***ee*ee*eeee*eettrtttrera♦eeert►" <br />