2025-04-11_REVISION - M1988112 ‎(2)‎

• Permit No: M1988112
• IBM Index Class Name: Revision
• Doc Date: 4/11/2025
• Doc Name Note: Appendix D Thru Attachment E Binder 2 of 2
• Doc Name: Request For Amendment To Permit
• From: Battle Mountain Resources, Inc.
• To: DRMS
• Type & Sequence: AM4
• Email Name: LJW
• Email Name: THM
• Email Name: EL1
• Media Type: D
• Archive: No

BASE MODEL PITWALL MODEL UPFLOW MODEL
SOURCE OF
GROUNDWATER FLOW PERCENT PERCENT PERCENT
GPM OF TOTAL GPM OF TOTAL GPM OF TOTAL
SIMULATION 2 ALLUVIAL WELL FIELD
Upflow N/A N/A 16.5 11.8%
Recharge 1.0 0.7% 1.5 1.1% 1.0 0.7%
z Santa Fe 0.01 0.01% 0.03 0.02% 0.04 0.02%
p Precambrian 17.6 13.0% 25.5 18.3% . 17.7 12.6%
J
Upper Alluvium 89.1 65.9% 77.9 55.9% 77.2 55.2%
North Pit 27.5 20.3% 34.4 24.7% 27.5 19.7%
TOTAL FLOW IN 135.1 139.3 139.9
D Santa Fe 0.6 0.4% 0.6 0.5% 0.6 0.4%
0
Upper Alluvium 134.6 99.6% 138.6 99.5% 139.3 99.6%
O
LL TOTAL FLOW OUT 135.1 139.3 139.9
SIMULATION 3 INTERCEPTOR TRENCH
Upflow N/A N/A 16.5 7.8%
Recharge 1.0 0.5% 1.5 0.7% 1.0 0.5%
z Santa Fe 0.03 0.02% 0.1 0.03% 0.04 0.02%
p Precambrian 17.9 8.4% 25.9 12% 18.0 8.5%
J
'L Upper Alluvium 166.1 77.6% 146.4 70% 146.4 69.4%
North Pit 29.0 13.5% 36.1 17% 29.1 13.8%
TOTAL FLOW IN 214.0 209.9 211.1
Interceptor trench 71.8 34% 73.4 35.0% 73.5 34.8%
O Santa Fe 0.4 0.2% 0.4 0.2% 0.4 0.2%
p Upper Alluvium 141.8 66% 136.0 64.8% i 137.2 65.0%
Li
TOTAL FLOW OUT 214.0 209.9 211.1
TOTAL FLOW TO TRENCH 2 219.3 214.6 215.8
2