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HYDRO21003
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HYDRO21003
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Entry Properties
Last modified
8/24/2016 8:42:44 PM
Creation date
11/20/2007 1:58:16 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982057
IBM Index Class Name
Hydrology
Doc Date
2/4/2003
Doc Name
4th Quarter 2002 Sediment Pond Inspection
From
Seneca Coal Company
To
DMG
Permit Index Doc Type
Sediment Pond Inspections
Media Type
D
Archive
No
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PERIODIC INSPECTION FORM <br />Water, Sediment, or Slurry imlpou``nJJdment-s7 <br />INSPECTOR'S NAME: Dennis Jones DATE: II 'l~~ <br />NPDES I.D . NO.: CO-0000221 D.P. 005 ~^~~ ` <br />FACILITY CONFIGURATION: Cross-Vallev Pond DATE LAST INSPECTI ON: <br />SITE NAME : Pond #005 LOCATION: TPnI`/a SWy, Sec. 10, TSN, R88W <br />MINE NAME : Seneca II-W Mine (Seneca Coal Co) LOCATION: 8 mi. S of Havden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-82-057 OWNER'S REP.: Grea a Kitchen, Gen Mar <br />Circle Or Write in 8pASOAr18te reSAOIISe <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: Yes <br />2. Lift thickness: 12 in. <br />3. Compaction according to approved plan: Yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.5:1 upstream, 2.5:1 downstream Total = 6:1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes: Yes No N/A <br /> At isolated points on embankment slopes: Yes No N/A <br /> At natural hillside: Yes No N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: Yes No N/A <br /> "Boils" beneath stream or ponded water: Yes No N/A <br />7. Cracks or scarps on crest: Yes No N/A <br />8. Cracks or scarps on slope: Yes No N/A <br />9. Sloughing or bulging on slope: Yes No N/A <br />10. *Major erosion problems: Yes No N/A <br />11. Surface movements in valley bottom or on hillside: Yes No N/A <br />12. *Erosion of toe: Yes No N/A <br />13. *Water impounded against toe: Yes N N/A <br />14. Existing embankment freeboard: (normal = 7.4') L feet <br />15. Increase Decrease in water level: Iti0 ~-k~aw ~ feet <br />16. Cracks, bulging, or erosion on upstream face: Yes Q° N/A <br />17. Visible sumps or sinkholes in slurry surface: N A <br />18. *Clogging <br /> Spillway channels and pipes: Yes o N/A <br /> Decant system: Yes No N/A <br /> Diversion ditches: <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes No N/A <br /> Decant system: Yes No N/A <br />20. Trash racks clear and in place: ~ No N/A <br />*Major adverse changes in these items could cause instability and should be reported to the <br />Engineering Manager and Mine Superintendent for further evaluation. Adverse conditions noted in <br />these items should normally be described (extent, location, volume, etc.) in the space on the <br />back of this sheet. <br />
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