HYDRO31415

• Permit No: C1992081
• IBM Index Class Name: Hydrology
• Doc Date: 4/29/1994
• Doc Name: QUARTERLY SEDIMENTATION POND INSPECTIONS - HAYDEN GULCH LOADOUT
• From: PEABODY WESTERN COAL CO
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

~4 .
PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: 03/28/94
NPDES I.D. NO.: COG-850008-OOlA
FACILITY CONFIGURATION: Embankment Pond DATE LAST INSPECTION: 12/29/93
SITE NAME: Truck Loop Pond 1 LOCATION: SE'. SW'a, Sec. 14. T6N, R68W
MINE NAME: H-G Terminal, Inc. LOCATION: 2 mi. SE of Hayden, CO
MINE I.D. NO.: CMLRD Permit No. C-92-081 OWNER'S REP.: Scott Williams, Supt.
Circle Or Write in anprooriate response
1. Burning (specify extent and location): Yes No
2. Angle of slope: upstream, downstream Total = N/A
3. *Seepage (specify location, color, and approximate volume)
From underdrain pipes: Yes ~ N/A
At isolated points on embankment slopes: Yes N/A
At natural hillside: Yes ~ N/A
Over widespread areas: Yes NCB N/A
From downstream foundation area: Yes Q9.p, N/A
"Boils" beneath stream or ponded water: Yes old N/A
4. Cracks or scarps on crest: Yes PTO N/A
5. Cracks or scarps on slope: Yes ~ N/A
6. Sloughing or bulging on slope: Yes ® N/A
7. *Major erosion problems: Yes J~q- N/A
8. Surface movements in valley bottom or o n hillside: Yes ~ N/A
9. *Erosion of toe: Yes I~TJ N/A
10. *Water impounded against toe: Yes ~~ N/A
11. Existing embankment freeboard: S ee comments feet
12, X Increase Decrease in water level: See comments 2.0 feet
13. Cracks, bulging, or erosion on upstream face: Yes LNG N/A
14. Visible sumps or sinkholes in slurry su rface: Yes No ~,LY
15. *Cloggirg
Spillway channels and pipes: Yes N/A
Decant system: Yes NjA
Diversion ditches: Yes ® N/A
16. *Cracking or crushing of pipes
Spillway pipes: Yes ~ N/A
Decant system: Yes N/A
17. Trash racks clear and in place: Yes No
*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.