2017-04-11_HYDROLOGY - C1981022

• Permit No: C1981022
• IBM Index Class Name: Hydrology
• Doc Date: 4/11/2017
• Doc Name: Quarterly Sediment Pond Inspection Report
• From: Oxbow Mining, LLC
• To: DRMS
• Annual Report Year: 2017
• Report Quarter_Month: 1
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: LDS
• Email Name: JRS
• Media Type: D
• Archive: No

FIRST QUARTER 2017 POND INSPECTION REPORT
Pond Inspection Date: March 27, 2017
OPERATOR:
Oxbow Mining, LLC.
MINE:
Elk Creek Mine
and Surface
Facilities
POND IDENTIFICATION:
Pond Al
Pond B
Pond C
East Yard
CDPS NUMBER
009
012
014
010
TYPE OF POND:
Sediment
Sediment
Sediment
Sediment
APPROXIMATE WATER LEVEL:
0.0'
0.7'(6060.7')
0.0'
0.0'
SEDIMENT (% total storage):
<5%
<5%
<5%
<5%
OUTFLOW:
None
None
None
None
FEATURES
PROBLEM
PROBLEM
PROBLEM PROBLEM
EROSIONAL
Rills & Gullies
No
No
No
No
Inadequate Vegetation
No
No
No
No
Outlet Channel Erosion
No
No
No
No
Burrows
No
No
No
No
Other
No
No
No
No
STRUCTURAL
Differential Settling
No
No
No
No
Cracks or Slides
No
No
No
No
Seepage
No
No
No
No
Other
No
No
No
No
APPURTENANT STRUCTURES
Defective Spillways
No
No
No
No
Dewatering Devices Clogged
No
No
No
No
Faulty Gates, Etc.
No
No
No
No
Other
No
No
No
No
MAINTENANCE REQUIRED
No
No
No
No
REFERENCE DRAWINGS:
2.05-M5A
2.05-M513
2.05-M5C
2.05-M5E
Inspected By: /LTLej
Do A. Smith
2