HYDRO25693

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 10/16/1997
• Doc Name: 2nd Qtr 1997 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockpoads or Sumps
INSPECTOR'S NAME: Roy Karo
FACILITY CONFIGURATION: Stockpond
SITE NAME: T-20
MINE NAME: c n a TT
MINE I.D. NO.: C-80-005
1
2
3
4
5
6
7
DATE: 09/24/97
DATE LAST INSPECTION: 06/24/97
LOCATION: ~i~c F.iL, cayr1 i T5N R87W
LOCATION: 7.7 m+ cc: of Hayden, CO
OWNER'S REP.: Brad Brown - n Ma
Angle of slope: 3:1 upstream, 4:1 downstream
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment elopes:
At natural hillside:
Over widespread areas:
From downstream foundation area:
"Boils" beneath stream or ponded water:
Cracks or scarps on crest:
cracks or scarps on elope:
Sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
8. *Eroeion of toe:
9.
10
11
12
13
14
*Water impounded against downstream toe:
Existing embankment freeboard: Aznoroximately
_~ Increase Decrease in water level:
Cracks, bulging, or erosion on upstream face:
Spillway erosion:
*Clogging
Spillway channels:
Diversion ditches:
Yee
Yee loo
Yes
Yee ///®
Yee
Yee o
Yes
Yee
Yee
Yes
Yes
Yes
~ feet
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
-3- feet
Yes o N/A
Yes N N/A
Yee N/A
Yes o N/A
*Major adverse changes in these items could cause instability and should be reported to
the Engineering Manager and Mine Superintendent for further evaluation. Adverse
conditions noted in these items should normally be described (extent, location, volume,
etc.) in the apace on the back of this sheet.
Total = 7:1 N/A