HYDRO23747

• Permit No: C1980005
• IBM Index Class Name: Hydrology
• Doc Date: 4/27/1999
• Doc Name: 1st Qtr 1999 Inspections
• From: SENECA COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Michael Altavit_la DATE: 03f23/99
NPDES I.D. NO.: NJA
FACILITY CONFIGURATION: Incised Pond DATE LAST INSPECTION: 12ftD/c8
SITE NAME: mr, k Wash c ttl'nq Pond LOCATION: NW1l NP.} _cec_ 34 T6N RB7W
MINE NAME: c n a I M'n (c n a oal Col LOCATION: 7.1 mi. cF of Hayden,_(,O
MINE I.D. NO.: CDMG Permit Nn_ C-80-005 OWNER'S REP.: Brad Rrohp, Can Mgr
1.
2.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
3. Compaction according to approved plan:
4. Burning (specify extent and location):
5. Angle of elope: upstream, downstream
6. *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:
7. Cracks or scarps on crest:
8. Cracks or scarps on elope:
9. Sloughing or bulging on elope:
10. *Major erosion problems:
11. Surface movements in valley bottom or on hillside:
12. *Eroeion of toe:
13. *Water impounded against toe:
14. Existing embankment freeboard: See comments
15. Increase Decrease in water level: No change
16. Cracks, bulging, or erosion on upstream face:
17.
18.
19
zo.
Visible sumps or sinkholes in slurry surface:
*Clogging
Spillway channels and pipes:
Decant system:
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place:
ee No N/A
~A inches
Yes No
Yee No
Total = -~8
Yes
Yee
Yee
Yee
Yee
Yes
Yee
No
No
No
No
Yee No
Yee No
Yee
Yee No
Yes No
Yee No
5.0 feet
N/A
N/A
N/A
N
N/A
N/A
feet
Yee ~ N A
Yes No
Yes No N/A
Yee No
Yee No
Yes
Yee
No N A
No
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.