2018-01-04_HYDROLOGY - C1981022

• Permit No: C1981022
• IBM Index Class Name: Hydrology
• Doc Date: 1/4/2018
• Doc Name: Quarterly Sediment Pond/Impoundment Report
• From: Oxbow Mining, LLC
• To: DRMS
• Annual Report Year: 2017
• Report Quarter_Month: 4
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: LDS
• Media Type: D
• Archive: No

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OXBOW MINING, LLC
3737 Hwy 133 P.O. Box 535 Somerset, Colorado 81434 USA Tel [phone] Fax [phone]
FOURTH QUARTER 2017 POND INSPECTION REPORT
Pond Inspection Date: December 7, 2017
OPERATOR:
MINE:
POND IDENTIFICATION:
CDPS NUMBER:
TYPE OF POND:
APPROXIMATE WATER LEVEL
SEDIMENT (% total storage):
OUTFLOW:
FEATURES
EROSIONAL
Rills & Gullies
Inadequate Vegetation
Outlet Channel Erosion
Burrows
Other
STRUCTURAL
Differential Settling
Cracks or Slides
Seepage
Other
APPURTENANT STRUCTURES
Defective Spillways
Dewatering Devices Clogged
Faulty Gates, Etc.
Other
MAINTENANCE REQUIRED
REFERENCE DRAWINGS:
Oxbow Mining, LLC.
Elk Creek Mine and Surface Facilities
Hubbard
Substation #3
Pond D
007
013
016
Sediment
Sediment
Sediment
0.0'
0.0'
0.0'
<5%
<5%
<5%
None
None
None
PROBLEM
PROBLEM
PROBLEM
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
2.05-M5E 2.05-M5F 2.05-M5D
Inspected By: Au4d-
oug A. Smith