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

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 2/10/1992
• Doc Name: Bid Documents ‎(IMP)‎
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

SUMMARY OF SUBSIDENCE SURVEY DATA -
M ONTINENT RESOURCES INC.
COAL BASIN MINES
SUBSIDENCE MONITORING POINT MCl 7
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SURVEY DATE
AUG 1981 JUL 1982 AUG 1983
1.•0 BACKS I GHT STAT i ON TP-y TP- 7-/0-y
2.0 INSTRUMENT STATION rp'2 7 To- Z
NORTH COORD. (MINE GRID) 1,6 et 75. 7. 6 /6 975:2 6 /6 975.
EAST COORD. (MINE GRID) .572 0,D y S'Z o. oy ' 5-2v.0 y
ELEVATION (ft) I/04'2. 22 // e,47 22 yZ•2 2-
HEIGHT OF TRANSIT ( t) /. 3/ /• 31 3/
3.0 BACKSIGHT AZIMUTH
FIELD ERECT 4,730 371 5-2 " 073° 32 t S2" t Sz"
FIELD INVERTED ° , Zt yam" LS3° 37 t S/ " ?ae 37 t "
FIELD AZIMUTH 073 ° 17 t So " o�° 37 073 �t sz "
TRUE AZIMUTH v?3 ° ,Zt 5-z" 073 ° 37 t SL" ew 22-1 ,Ez"
4.0 BACKS IGHT CORR. Ooo° Pat toz" oo° v_t co " �ot� y 0 t oo "
5.0 FORESIGHT AZIMUTH
FIELD ERECT oho /o t SL " 03/a /,pt S8" *JIG /o t 57"
FIELD INVERTED %o t re-so z// a fl_t " 2// fk
FIELD AZIMUTH o31 ° /o t ff" off° /i ' o/ " a° io t
TRUE AZ i MUTH oho �t y/ " Off° �' 57"
6.0 FORESIGHT VERTICAL ANGLE
FIELD ERECT lv2 0 /S t 47 " /V2° 5-1 s7 « /02 a /5- 1 1/0«
FIELD INVERTER Z S'7° y�t 3 q" -° . ►. t =«
FIELD ANGLE �02° �t oZ," �° �t �" iv2• Lt �
HEIGHT OF TARGET (f SS
7.0 HORIZONTAL DISTANCE
MEASURED SLOPE D I ST. (ft) 3 yaB. 06 3 908 07 3 908.06
ATMOSPHERIC PRESS. In H20) /9, .SS /9. '/H /9.3 7
TEMPERATURE (Degree F)
COOR. FACTOR (ft) • ° , o y ,o q
TRUE SLOPE DISTANCE (ft) 3109. /S oq,
HORIZONTAL D I ST. (ft) 3 f3/9,87 3 019. 9
8.0 DIFFERENTIALS
NORTH COORDINATE 3 764,47 3 24 7.fig 3Z 62.S9
EAST COORDINATE /977. 83 / 977.B7 /9 77.6
ELEVATION (ft) — 827.28 _
NORTH COORDINATE (MINE GRID) ?vZ'13, 23 ?oZy3,ZL 2o2y3.2S
EAST COORDINATE (MINE GRID) Z yf7. 07 ZY97. 9/ 2y -7. 8!1
ELEVATION (ft) / /y/'f.9'1 //o/ y. 9b //oiy. 97