HYDRO24923

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 4/11/1997
• Doc Name: SENECA II-W MINE C-82-057 QUARTERLY STOCKPOND INSPECTIONS
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponda or Sumpa
INSPECTOR'S NAME: Rov Karo
FACILITY CONFIGURATION: Stocknond
SITE NAME: T-1
MINE NAME: Seneca II-W
MINE I.D. NO.: C-82-057
DATE: 03/10/97
DATE LAST INSPECTION: 12/17/96
LOCATION: SWY.S ES:, Sec 16. TEN. R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Brad Brown, Gen Mar
Circle or write in aonrooriate reanonae
1
2
3.
4.
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9.
10
11
12
13
14
Angle of slope: 3:1 upstream, 3:1 downstream Total = 6:1
+Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
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 slope:
Sloughing or bulging on slope:
+Major erosion problems:
Surface movements in valley bottom or on hillside:
*Erosion of toe:
+Water impounded against downstream toe:
Existing embankment freeboard: Aooroximately
Increase Decrease in water level: No chance
Cracks, bulging, or erosion on upstream face:
Spillway erosion:
*Clogging
Spillway channels:
Diversion ditches:
Yes
Yes
Yes No
Yes
Yes
Yes
Yes
Yes (~b
Yes
Yes
Yes
Yes
1.5 feet
_ feet
Yes
Yes
N/A
NJA
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
NIA
N/A
Yes N/A
Yes o N/A
*Maj or 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 space on the back of this sheet.