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 blurry Impouadmects
INSPECTOR'S NAlffd: Rennie Jones DATE: 03/29/99
NPDES I.D. NO.: CO-0000221 ^_P_ 004
FACILITY CONFIGURATION: Croee-V~t tg~ Pond DATE LAST INSPECTION: 12/10/9H
SITE NAME: South c_ection 12 Pond l006 LOCATION: cWi~ cFi~ Sec_ 12 TSN R87W
MINE NAME: San a TT Min (c ne a oal of LOCATION: 7.1 mi. S6 o Hayden ~_
MINE I.D. NO.: CML.ttn Permit No. C-BO-005 OWNER'S REP.: Hrad Brown Gen Mer
1
2
3
4
5
6
7.
8.
9.
10.
11.
12.
13.
la.
15.
16.
17.
18.
19
20.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of elope: set upstream, 2:1 downstream
*Seepaga (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 ecarpe on treat:
Cracks or ecarpe on elope:
_ es No
1Z in.
No
Yee
Total = 7e1
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 in water level:
cracks, bulging, or erosion on upstream face:
Visible sumps or sinkholes in slurry surface:
*clogging
Spillway channels and pipes:
Decant eyetem:
Diversion ditches:
*Cracking or crushing of pipes
Spillway pipes:
Decant system:
Trash racks clear and in place: _
Yee
Yee o
Yee
Yee o
Yea
Yee o
Yee
Yee
Yee
Yee
Yee
Yee o
Yee
6.3 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
N/A
N/A
1_0 feet
Yee ©o N/A
Yee No
Yee (piL~ N/A
Yee y~~yl'Oi~l N/A
Yee N/A
Yea o N/A
Yee o N/A
No N/A
*Major adverse changes in these items could cause instability and should be reported to the
Engineering Manaqer 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.