HYDRO21840

• Permit No: C1981008
• IBM Index Class Name: Hydrology
• Doc Date: 3/18/1999
• Doc Name: 1ST QUARTER 1999 INSPECTIONS
• From: NEW HORIZON MINE
• To: DMG
• Permit Index Doc Type: SEDIMENT POND INSPECTIONS
• Media Type: D
• Archive: No

PERIODIC INSPECTION FORM
WATER, SIDIl~TP, OR SLURRY II~OUI~TTS
Inspectors Name : ~ss ~~~~ Date : 3 . i S , q q
NPDES ID. No.:CO-0000213 004 Date Last Inspected: ~-t,_~4.. qg
Facility Configuration side Hill Pond
Site Name: Impoundment #004 Location:47N16W36CB
Mine Name: New Horizon Mine Location:2 mi.NW of Nucla CO.
Mine ID No.: C~'II~RD Permit #0008-81
Owners Rep.: R. L. Wade, Mine Manager
CIRCLE OR WRITE IN APPROPRIATE RESPONSE
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Foundation Preparation (removal of vegetation, sturtq~s., topsoil) Ye No
Lift thickness (inches)
Cortq~action according to approved plan
Burning (specify extend and location)
Angle of slope: 3:1 upstream, 3:1 downstream
Seepage (specify location, color, and approx. volume)
a.) From underdrain pipes:
b.) At isolated points on embankment slopes:
c) AC natural hillside:
d) Over widespread areas
e) From downstream foundation area
f) "Boils" beneath scream or ponded water
Cracks or scarps on crest
Cracks or scraps on slope
Sloughing or bulging on slope
Major erosion problems
Surface movements in valley bot[om or on hillside
Erosion of tce
Water irt¢~ounded against tce
Existing ertibatilonent freeboard (feet)
Cracks, bulging, or erosion on upstream face
Visible sumps or sinkholes in slurry surface
Clogging
a) Spillway channels and pipes
b) Decant system
c) Diversion Ditches
Cracking or crushing of pipes
a) Spillway pipes
b) Decant system
Trash racks clear and in place

N/A
No N/A
Yes ® N/A
Yes ~ N/A
Yes ~I N/A
Yes ®o N/A
Yes ~ N/A
Yes ~ N/A
Yes ~ N/A
Yes ®, N/A
Yes ~ N/A
Yes ~ N/A
Yes ~ N/A
Yes ®o N/A
Yes ® N/A
Yes ~ ~ N/A
l
~~ l Feet
Yes ® N/A
Yes ~ N/A
Yes ® N/A
Yes ® N/A
Yes ~ N/A
Yes
Yes
Ye
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N/A
No N/A