2018-03-02_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 3/2/2018
• Doc Name: Quarterly Subsidence Monitoring Report
• From: Wright Water Engineers, Inc
• To: DRMS
• Annual Report Year: 2017
• Permit Index Doc Type: Subsidence Report
• Email Name: LDS
• Media Type: D
• Archive: No

TABLE OF CONTENTS
Page
1.0
BACKGROUND..............................................................................................................3
2.0
GENERAL SUBSIDENCE OBSERVATION AND REPORTING.....................................5
3.0
OTHER SUBSIDENCE MONITORING............................................................................7
3.1 Monument Dam/Minnesota Reservoir Monitoring..............................................................
7
3.2 USFS Roads and Stock Pond Monitoring...........................................................................8
3.3 Monument Dam/Minnesota Reservoir Aerial Photograph Comparison ..............................
8
3.4 U.S. Forest Service Water Resources Survey....................................................................
8
3.5 Mineable Extent Map..........................................................................................................
9
4.0
FALL 2017 SUBSIDENCE OBSERVATIONS...............................................................10
4.1 Traverse A-A'....................................................................................................................
11
4.2 Traverse B-B'....................................................................................................................
12
4.2.1 Location 1.......................................................................................................
12
4.3 Traverse C-C.....................................................................................................................
14
4.3.1 Location 2.......................................................................................................
15
4.3.2 Location 3.......................................................................................................
17
4.3.3 Location 4.......................................................................................................
19
4.4 Traverse D-D.....................................................................................................................
20
4.4.1 Location 5.......................................................................................................
21
4.5 Traverse E-E'....................................................................................................................
23
4.5.1 Location 6.......................................................................................................
23
4.5.2 Location 7.......................................................................................................
25
4.5.3 Location 8.......................................................................................................
26
4.5.4 Location 9.......................................................................................................
26
4.6 Traverse F-F......................................................................................................................
28
5.0
CONCLUSIONS............................................................................................................29
6.0
BIBLIOGRAPHY...........................................................................................................32