2018-04-04_HYDROLOGY - C1981022

• Permit No: C1981022
• IBM Index Class Name: Hydrology
• Doc Date: 4/4/2018
• Doc Name: Quarterly Sediment Pond/Impoundment Report
• From: Oxbow Mining, LLC
• To: DRMS
• Annual Report Year: 2018
• Report Quarter_Month: 1
• 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]
OPERATOR:
MINE:
FIRST QUARTER 2018 POND INSPECTION REPORT
Pond Inspection Date: March 27, 2018
Oxbow Mining, LLC.
Elk Creek Mine and Surface Facilities
POND IDENTIFICATION:
Hubbard
CDPS NUMBER:
007
TYPE OF POND:
Sediment
APPROXIMATE WATER LEVEL:
0.0'
SEDIMENT (% total storage):
<5%
OUTFLOW:
None
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
Substation #3
013
Sediment
0.25'
<5%
None
PROBLEM PROBLEM
Pond D
016
Sediment
0.0'
<5%
None
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: j
Doug A. Smith
1