REP26569

• Permit No: C1981014
• IBM Index Class Name: Report
• Doc Date: 10/31/1990
• Doc Name: SEMI ANNUAL SUBSIDENCE MONITORING REPORT
• Permit Index Doc Type: SUBSIDENCE REPORT
• Media Type: D
• Archive: No

TABLE 1
SOUTHFIELD MINE
SEMI-ANNUAL SUBSIDENCE MONSTORING DATA SUMMARY
<MAY, 1990 THROUGH OCTOBER, 1990)
SOUTH SUBSIDENCE GRIb
Survey Date: 10!90

CHANGE FROM ORIGINAL SURVEY CHANGE FROM PRECEEDING SURVEY
Survey date; 3!83 Survey date: 8!90
HOR220NTAL
STATION ELEVATION DISTANCE ELEVATION
NO,
---------- cFT>
-------------- <FT~
-------------------- <FT~
-----------------------------------
1 -4.68 0.20 -0.02
2 -0.78 0.16 -0.02
3 -1.05 4.28 -0.03
4 -1.29 0_20 -0.01
5 -0.79 0.05 -0.01
6 -0.81 0.23 -0.01
7 -0.68 0.11 -~J.02
8 -0.68 0.10 -U.O1
9 -0.67 0.21 -U.02
10 -0.66 0.09 -0.02
11 -0.73 U.23 -0.02
12 -1.02 0.90 0.00
13 -2.43 0.20 -0.03
14 -1.93 0.13 -0.01
15 -2.29 0.24 -0.02
16 -0.47 0.19 -0.01
17 -D.32 0.09 -0.01
18 -0.22 0.93 O.OS
15 -0.15 0.13 0.00
20 -O.S1 0.15 0.01
~•1 -0.07 0.23 -O.OS
22 -0.06 0.21 -O.U1
23 -0.09 0.11 0.00