2022-09-06_REPORT - C1982056 ‎(3)‎

• Permit No: C1982056
• IBM Index Class Name: Report
• Doc Date: 9/6/2022
• Doc Name Note: 2021 Annual Hydrology Report Text
• Doc Name: Annual Hydrology Report
• From: Twentymile Coal, LLC
• To: DRMS
• Annual Report Year: 2021
• Email Name: TNL
• Media Type: D
• Archive: No

Foidel Creek Mine C-82-056 2021 Annual Hydrology Report
TABLE OF CONTENTS (continued)
Paqe
5.0 Summary and Conclusions............................................................................................27
Groundwater..............................................................................................................27
SurfaceWater ...........................................................................................................28
SpoilSprings .............................................................................................................28
MineDischarge .........................................................................................................29
MineInflow................................................................................................................29
Tables
Table 3-1: Bedrock Groundwater Monitoring Program ................................................................5
Table 3-2: Alluvial Groundwater Monitoring Program ................................................................12
Table 3-3A: March Through May Surface Water Monitoring Program .......................................17
Table 3-313: June Through September Surface Water Monitoring Program...............................18
Table 3-3C: October Through February Surface Water Monitoring Program.............................19
Table 3-3D: Footnotes for Tables 3A through 3C......................................................................20
Table 3-4: Spoil Spring Water Quality Monitoring During Report Period....................................25
Table 3-5: Natural Spring Water Quality Monitoring During Report Period ................................25
ATTACHMENTS
Attachment 1 Bedrock Groundwater Data
Attachment 2 Alluvial Groundwater Data
Attachment 3 Surface Water Data
Attachment 4 Spoil Spring Data
Attachment 5 CPDS Site Data
Attachment 6 Mine Water Discharge Data
Attachment 7 Figures
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