HYDRO22916

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 10/23/1998
• Doc Name: QUARTERLY SEDIMENTATION POND INSPECTIONS SENECA II-W MINE
• 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 Iepoundmenta
INSPECTOR'S NAME: Michael A7tav'lla DATE: 09/27/98
NPDES I.D. NO.: c0-0000 7 D_P_ OOS
FACILITY CONFIGURATION: C rewe-Valle pond DATE LAST INSPECTION: 06/29/98
SITE NAME: Pond f005 LOCATION: NW~r SW3~ Sec_ t0 TSN A88W
MINE NAME: .~'eneGa II-W Mi na (c n a oa7 0l LOCATION: 8 mi_ c of Hayden cO
MINE I.D. NO.: (7.fT.Rn P rm i Ne_ -8 -057 OWNER'S REP.: Brad BrewnT Gen Mqr
1
2
3
4
5
6
7.
B.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Foundation preparation (removal of vegetation,
Lift thibknese:
compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: 3.5:1 upstream, 2.5:1 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 crest:
Cracks or scarps on elope:
stumps, topsoil:
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: apNroximately
Increase ~ Decrease in water level:
Cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in slurry surface:
18. *clogging
Spillway channels and pipes:
Decant eyetem:
Diversion ditches:
19
20
*Cracking or crushing of pipes
Spillway pipes:
Decant eyetem:
Trash racks clear and in place:
ee No
1Z in
® No
Yee No
Total = 6:1
Yea No
Yee ~t~
Yee N
Yee o
Yee
Yee o
Yes
Yes N®
Yee
Yee
Yes
Yee ®o
Yes
lD_a feet
N/A
N/A
N/A
N/A
L~.e/
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_D feet
Yes ~ N/A
Yee No /A
Yes ®o N/A
Yee No
Yee ®o A
Yee ~ N A
Yes No
es 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.