2009-10-29_HYDROLOGY - C1994082 ‎(2)‎

• Permit No: C1994082
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/29/2009
• Doc Name: 3rd Quarter 2009 DMRS
• From: Seneca Coal Company
• To: DRMS
• Email Name: DTM
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones
NPDES I.D. NO.: N/A
FACILITY CONFIGURATION:
SITE NAME: Pond #011A
MINE NAME: Yoast Mine(Seneca Coal Cc)
MINE I.D. NO.: CMLRD Permit No. C-94-082
DATE: (1-p?R-M
DATE LAST INSPECTION: -'A `'© 0(
LOCATION: SWV44 NWY44, Sec. 16, TSN, R87W
LOCATION: 8.5 mi. SE of Hayden, CO
OWNER'S REP.: Roy Karo, Gen Mgr
Circle or write in appropriate response
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
Foundation preparation (removal of vegetation, stumps, topsoil:
Lift thickness:
Compaction according to approved plan:
Burning (specify extent and location):
Angle of slope: 3.0:1 upstream, 3.0:1 downstream
*Seepage (specify location, color, and approximate volume)
From underdrain pipes:
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 toe:
Existing embankment eeboard: (normal = 4.5')
Increase Decrease in water level:
Total = 6.0:1
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
6.9
]-:3
Cracks, bulging, or erosion on upstream face: Yes
Visible sumps or sinkholes in slurry surface: N/A
*Clogging
Spillway channels and pipes: Yes
Decant system: N/A
Diversion ditches: N/A
*Cracking or crushing of pipes
N- N/A
Spillway pipes: Yes
Decant system: N/A
20. Trash racks clear and in p ;ace: es No
21. Discharge rate (gpm) k e? ??w ?S c,vu0
*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 space on the back of this sheet.
Cross-Vallev Pond
Yes
_ in.
_ Yes
No
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
No N/A
ZJ N/A
feet
feet
I a N/A