2019-12-13_REVISION - M1980244 ‎(55)‎

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 12/13/2019
• Doc Name Note: Appendix 3
• Doc Name: Request For Amendment To Permit
• From: CC&V
• To: DRMS
• Type & Sequence: AM13
• Email Name: TC1
• Email Name: MAC
• Email Name: BFB
• Email Name: ERR
• Email Name: JPL
• Media Type: D
• Archive: No

NewFields
Newmont
VLF/OSA Closure Study
Arequa Gulch VLF Stormwater Diversion Channel
500yr Hec-HMS Results
Peak Discharge volume(acre-
Hydraulic Element Drainage Area (MiZ) (ft3/s) ft)
Southeast 0.2406 324.8 32.2
West 0.2262 356.7 31.4
Arequa Gulch 0.4668 681.5 63.6
Northeast 0.2401 427.8 33.3
Cresson Pit 0.2908 520.4 40.3
East 0.0507 92.5 7
North1 0.0575 120.7 8
North2 0.0214 46.4 3
AGVLF 0.0789 167.1 10.9
Structure
Contributing Design Storm Peak Flow
Subbasin/Elements Event (ft3/s)
channel 1 Southeast 500yr, 24hr 324.8
channel 2 West 500yr, 24hr 356.7
channel 3 North2 500yr, 24hr 46.4
channel 4 North1 500yr, 24hr 120.7
channel 5 Northeast 500yr, 24hr 427.8
channel 6 East 500yr, 24hr 92.5