HYDRO21815

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 1/14/1999
• Doc Name: 4th Qtr 1999 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INBPECTION FORN
Water, Sediment, or Blurry Impoundments
INSPECTOR'S NAME: M;.haat At av'tta DATE: 12/10/98
NPDES I.D. NO.: co-OO0o221 n.P. Ooa
FACILITY CONFIGURATION: Cross-Vatley Pond DATE LAST INSPECTION: Oc/tB/ae
SITE NAME: Pond i`008 LOCATION: aW'1t NWT Sec. 7 TcN R86W
MINE NAME: s n a 77 M;n (_$eneca Coat. Col LOCATION: 7.1 m;_ cF of Haydon_ [`O
MINE I.D. NO.: CMLRn Permit No_ C-80-005 OWNER'S REP.: Hrad Hrown, Gen MQ>i_
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19
20
Foundation preparation (removal of vegetation, stumps, topsoil: ee No
Lift thickness: ~Z in
compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: 3:i upstream, 3ci downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
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 treat:
Cracks or scarps on elope:
ee No
_ Yee No
Total = 6:1
sloughing or bulging on elope:
*Major erosion problems:
Surface movements in valley bottom or on hillside:
*Eroeion of toe:
*Water impounded against toe: _
Existing embankment freeboard:
Increase Decrease
tee romments
in water level: No changE
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in slurry surface:
*Clogging
Spillway channels
Decant system:
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place:
and pipes:
Yes No
Yee
Yee o
Yee
Yee
Yee o
Yes No
Yes
Yee No
Yee ®o
Yee ®°
Yea No
Yee No
7.5 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
N/A
N/A
N/A
N/A
feet
Yee No N/A
Yea No
Yes ©o N/A
Yes No
Yea No A
Yee No N A
Yee No
Yes No 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.