2014-04-02_HYDROLOGY - C1982057

• Permit No: C1982057
• IBM Index Class Name: Hydrology
• Doc Date: 4/2/2014
• Doc Name: 1st Quarter 2014 Stockpond Inspection Report
• From: Seneca Coal Company
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Email Name: JHB
• Email Name: DIH
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
Stockponds or Sumps
INSPECTOR'S NAME: Katryna Snowden
FACILITY CONFIGURATION: Stockpond
SITE NAME: T -2
MINE NAME: Seneca II -W
MINE I.D. NO.: C -82 -057
DATE: 3 -24 -14
DATE LAST INSPECTION: 12 -2 -13
LOCATION: NWV..SWU, Sec 22, TSN, R88W
LOCATION: 8 mi S of Hayden, CO
OWNER'S REP.: Roy Karo
Circle or write in appropriate response
1.
Angle of slope: 3.3:1 upstream, 2.3:1 downstream
Total =
5.6:1
N/A
2.
*Seepage (specify location, color, and approximate volume)
At isolated points on embankment slopes:
Yes
No
N/A
At natural hillside
Yes
No
N/A
Over widespread areas:
Yes
No
N/A
From downstream foundation area
Yes
No
N/A
"Boils" beneath stream or ponded water:
Yes
No
N/A
3.
Cracks or scarps on crest:
Yes
No
N/A
4.
Cracks or scarps on slope:
Yes
No
N/A
5.
Sloughing or bulging on slope:
Yes
No
N/A
6.
*Major erosion problems:
Yes
No
N/A
7.
Surface movements in valley bottom or on hillside:
Yes
No
N/A
8.
*Erosion of toe:
Yes
No
N/A
9.
*Water impounded against downstream toe:
Yes
No
N/A
10.
Existing embankment freeboard: see below
5
feet
11.
Increase Decrease in water level:
0
feet
12.
Cracks, bulging, or erosion on upstream face:
Yes
No
N/A
13.
Spillway erosion:
Yes
No
N/A
14.
*Clogging
Spillway channels:
Yes
No
N/A
Diversion ditches:
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 space on the back of this sheet.
Comments:
10. Water level 5 feet below discharge
Snow covered and frozen