HYDRO28946

• Permit No: C1992081
• IBM Index Class Name: Hydrology
• Doc Date: 1/13/1994
• 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

PERIODIC INSPECTION FORM
Water, Sediment, or Slurry Impoundments
INSPECTOR'S NAME: Dennis Jones DATE: 12/29/93
NPDES I.D. NO.: COG-850008-002A
FACILITY CONFIGURATION: Embankment Pond DATE LAST INSPECTION: 9/28/93
SITE NAME: Rail Looo Pond 2 LOCATION: SE4 SW;r, Sec14 T6N, R88W
MINE NAME: H-G Terminal, Inc. LOCATION: 2 mi. SE of Havden, CO
MINE I.D. NO.: CMLRD Permit No. C-92-081 OWNER'S REP.: Scott Williams, Sunt.
Circle or write in aoorooriate resoonse
1. Burning (specify extent and location): Yes No FLf.A
2. Angle of slope: upstream, downstream Total = N/A
3. +Seepage (specify Location, color, and approximate volume)
From underdrain pipes: Yes •~to: N/A
At isolated points on embankment slopes: Yea ~Na N/A
At natural hillside: Yea ~lo~ N/A
Over widespread areas: Yee ;NO; N/A
From downstream foundation area: Yes ~NOi N/A
"Boils" beneath stream or ponded water: Yea pia- N/A

4. CYdCke Or scarps on crest: Yes ENO N/A
5. Cracks or scarps on elope: Yes ~NO~ N/A
6. Sloughing or bulging on elope: Yes N~o. N/A
7. *Major erosion problems: Yes iNo,~ N/A
8. Surface movements in valley bottom or on hillside: Yes ~tio~ N/A
9. +Erosion of toe: Yea ~NO% N/A
10. *Water impounded against toe: Yes ~,No~ N/A
11. Existing embankment freeboard: See Comments feet
12. Increase Decrease in water level: See Comments feet
13. Cracks, bulging, or erosion on upstream face: Yes `NO N/A
14. Visible sumps or sinkholes in slurry surface: Yes moo. N/A
15. +Clogginq
Spillway channels and pipes: Yes ENO- N/A
Decant system: Yes No ~N(A
Diversion ditches: Yes ~ No, N/A
16. *Cracking or crushing of pipes
Spillway pipes: Yes No ~N/A
Decant system: Yes No ~N/A~
17. Trash racks clear and in place: 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.