2014-09-26_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 9/26/2014
• Doc Name: Spring 2014 Subsidence Monitoring Report
• From: WWE Wright Water Engineers, Inc
• To: DRMS
• Permit Index Doc Type: Subsidence Report
• Email Name: JRS
• Email Name: MPB
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Paqe
1.0
SUMMARY OF FINDINGS ................................................................ ..............................1
2.0
SUBSIDENCE PREDICTION AND MONITORING ............................ ..............................3
2.1
Monument Dam /Minnesota Reservoir Monitoring Data ........................ ..............................4
3.0
OVERVIEW OF SPRING 2014 FIELD STUDIES .............................. ..............................6
4.0
TRAVERSES AND OBSERVATIONS IN THE SOD AND DRY FORK MINING AREAS 8
4.1
Traverse A -A' ....................................................................................... ...............................
8
4.2
Traverse B -B' ....................................................................................... ...............................
9
4.3
Traverse C- C.......................................................................................................................
9
4.3.1 Location 1 ....................................................................... ...............................
12
4.4
Photographic Observation Point 1 ..................................................... ...............................
13
4.5
Traverse D- D.....................................................................................................................
14
4.6
Traverse E -E' ..................................................................................... ...............................
14
4.6.1 Location 2 ....................................................................... ...............................
15
4.6.2 Location 3 ....................................................................... ...............................
16
4.7
Traverse F- F......................................................................................................................
16
4.7.1 Location 4 ........................................................................ ...............................
17
4.7.2 Location 5 .......................................................................... .............................20
4.7.3 Location 6 ........................................................................ ...............................
21
4.8
Photographic Observation Point 2 ..................................................... ...............................
23
4.9
Photographic Observation Point 3 ..................................................... ...............................
23
4.10
Traverse G- G.....................................................................................................................
26
4.11
Photographic Observation Point 4 ..................................................... ...............................
26
4.12
Photographic Observation Point 5 ....................................................... .............................26
4.13
Traverse H- H ........................................................................................ .............................28
4.14
Traverse 1- 1 ........................................................................................... .............................28
4.14.1 Location 7 .......................................................................... .............................29
4.14.2 Location 8 .......................................................................... .............................30
4.15
Photographic Observation Point 6 ..................................................... ...............................
31
4.16
Photographic Observation Point 7 ....................................................... .............................32
4.17
Traverse J -J' ...................................................................................... ...............................
32
5.0
CONCLUSIONS ............................................................................... .............................35
6.0
BIBLIOGRAPHY
.............................................................................. .............................38