2017-10-18_HYDROLOGY - C1996083

• Permit No: C1996083
• IBM Index Class Name: Hydrology
• Doc Date: 10/18/2017
• Doc Name: Quarterly Sediment Pond/Impoundment Report
• From: JE Stover & Associates, Inc.
• To: DRMS
• Annual Report Year: 2017
• Report Quarter_Month: 3
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: CCW
• Email Name: JRS
• Media Type: D
• Archive: No

Identification
of Pond
s During Inspection:
wimate Water Level
lent (% remaining)
)w (cfs)
QUARTERLY POND INSPECTION REPORT
Bowie Resources LLC Quarter:
Bowie No. 2 Mine - C-1996-083 Inspection Date:
B
I C
D - Gob Pile
F - New Gob
J UTL East K UTL West
Sediment
I Sediment
Sediment
li Sediment
Sediment Sediment
0
FeaturesProblem
Problem ProbmleProblem
Problem
Problem
Yes/No Yes/No Yes/No Yes/No
Yes/No
Yes/No
Erosional
No No No No
No
No
Rills & Gulleys
No No No No
No
No
Inadequate Vegetation
No No No No
No
No
Outlet Channel Erosion
No No No No
No
No
Burrows
No No No No
No
No
Other
Structural
Differential Settling
No No No No
No
No
Cracks or Slides
No No No No
No
No
Seepage
No No No No
No
No
Other
No No No No
No
No
Appurtenant Structures
Defective Spillways
No No No No
NoNo
Dewatering Devices Clogged
No No No No
No
No
Faulty Gates, Etc.
No No No No
No
No
Other
No No No No
No
No
Additional Comments
Design depth measured from pond bottom to invert of emergency spillway:
Pond B=10, C=10, D=10, J=10, K=3, F=10' TD
Pond Bottom Elevations B=5942, C=5990, D=5970, J=5846, F=5944, K=5819
Pond B held about 1 foot of water and sediment and was cleaned out in August.
Pond C held very little water and was below the primary spillway.
Pond D held a pool of water about a foot below the primary spillway.
Pond J held about two feet of water and sediment.
Pond K was dry.
Pond F held about 2 feet of water and sediment
There were no mud pits open at the end of the quarter.
of Inspector: Tamme Bishop
Tamme Bishop
Colorado P. E. 434C