HYDRO21130

• Permit No: C1981041
• IBM Index Class Name: Hydrology
• Doc Date: 1/3/2000
• Doc Name: POWDERHORN COAL CO CDPS PERMIT DMRS POND & REFUSE PILE INSPECTION REPORTS PN C-81-041
• From: J E STOVER & ASSOCIATES
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

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Y
JAN ' 4 2000
Identification
of Pond
s During Inspection:
in Depth
in Max Water Depth
In Max Sed. Depth
Went Level
r Level
QUARTERLY POND INSPECTION REPORT __ 9
h.oT e.a~o..o•.Y_. -..... ~...-l
Powderhorn Coal Company Quarter: Fourth 1
C-81-041 I Inspection Date: 28-Dec
1 - 2 UTL 4 No. Yard 5 No. Shop 6 CRDA-1 7-No. Delcine 8 Prep Plant

Sediment
Sediment
Sediment
Sediment
Sediment I
Sediment
0.8 1.1 8.0 2.7 12.0
Na Na Na Na Na 5.5
0.6 1.0 2.6 2.4 2.3 5.5
6.7/4.2/4.4 1.9/2.6/3.2 5.8 5.5/7.1/5.4 4.6 12.0
Dry/Dam D Dry Dry Dry Pools
0 0 0 0 0 0
Yes/Na Yes/No Yes/No Yes/No Yes/No Yes/No
Erosional
Rills & Gulleys No No No No Na No
Inadequate Vegetation No No No No No No
Outlet Channel Erosion No No No No No No
Burrows No No No No No No
Other No No No No No No
Differential Settling No No No No No No
Cracks or Slides No No No No No No
Seepage No No No No No No
Other No No No No No No
Appurtenant Structures
Defective Spillways No No No No N/A WA
Dewatering Devices Clogged No No No No N/A N/A
Faulty Gates, Etc. No No No No N/A N/A
Other No No No No No No

AddRional Comments Pond 8 was cleaned of sediment during December. r; , v ~ ~ ~
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Maintenance Required: Remove sediment from pond 6 spillway pipes. o
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Name of Inspector: Jim Stover ~.~ ; 1 ~v.~._•' ~ =°
~p?' J E. Stover '~'
°c•`:`GoloradvP: E:~19230 Date