_GENERAL DOCUMENTS - C1981017 ‎(246)‎

• Permit No: C1981017
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Name: Bid Documents ‎(IMP)‎ TR-17 Correspondence
• Permit Index Doc Type: General Correspondence
• Media Type: D
• Archive: No

SUMMARY OF SUBSIDENCE SURVEY DATA
MID-CONTINENT RESOURCES, INC.
COAL BASIN MINES
SUBSIDENCE MONITORING POINT MCI 7
S U R V E Y D A T E
AUG 1981 JUL 1982 AUG 1983
1.0 BACKS 1 GHT STATION
2.0 INSTRUMENT STATION 1 p'Z TP �-
NORTH COORD. (MINE GRID) 1,6 475. 2 6 /697,5., 2 6 /69757 2L
EAST COORD. (MINE GRID) .S2 0,o y . .Szo.o V
ELEVATION (ft) 110,712. 22 // 0qz. 22 //Syz.2 L
HE 1 GHT OF TRANSIT (ft) /. 3/ /. 31 ,�
3.0 BACKSIGHT AZIMUTH
FIELD ERECT e,73 ° 37' 52 " eZI° 37' S2" � 2Z' 5Z "
FIELD INVERTED 2, ° �' yam" ZS3° 37 ' 7" 2,�° 37 ' Sz "
FIELD AZ 1 MUTH a73 ° J' So " o�e 37 ' V! owl ° 37 1 s "
TRUE AZIMUTH 0730 ,Z' 51" 0730 37 ' S'Z." off° 37J22
4.0 BACKS 1 GHT CORR. Ooo°
5.0 FORESIGHT AZIMUTH
FIELD ERECT 0-31° /o ' 51, " ool° lot S6" 03/° /o ' 57"
FIELD INVERTED 2// ° /0 ' SP! " z// a 1L' " 2/T ° 1o ' 6
FIELD AZIMUTH o3/ ° /o ' �fl 0 /0 /i ' o 1 " 076 io ' ;Ev
TRUE AZIMUTH per° f�' " 0-1/-° �' U/ " O o /0 ' S7"
6.0 FORESIGHT VERTICAL ANGLE
FIELD ERECT l02 ° /S 1 47 " 1,920 '3' s7 " /vZ a 15- ' 90"
FIELD INVERTER 2 S7° ' 3'V" 2 ° -lot ,3�4 " ZS` ° 3 50"
FIELD ANGLE 7,9 ° eo io2° o'
HEIGHT OF TARGET (ft) O. 9S 01`I5- O. �1S
7.0 HORIZONTAL DISTANCE
MEASURED SLOPE D I ST. (ft) 3 ya8. 06 3 90 y 07 3 908.06
ATMOSPHERIC PRESS. ( In H20) /91 Ss /9• '/y /9.37
TEMPERATURE (Degrees F) S1 5-2 y2
COOK. FACTOR (ft) • o /, 01 /•c 9
TRUE SLOPE D I STANCE (ft) 3 /s"
HORIZONTAL DIST. (ft) 3b/`l,87 3019. 8 3b/9, tie
8.0 DIFFERENTIALS
NORTH COORDINATE 3 764, 9 7 3 24 7.14 3Z 6Z.SS
EAST COORDINATE /977. 03 / 977. B7 p9 77•8
ELEVATION (ft) - 827.28 - 827.26 8t'7.z5-
NORTH COORDINATE (MINE GRID) ?a Z v 3, 23 202 y 3.ZL. Z o 2 y3.ZS
EAST COORDINATE (MINE GRID) 2yy7. 97 Z4197. / 2y97. 8N
ELEVATION (ft) I /v/y,9Y //D/ ,V, 96 __1/0/'-'• 97