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-i <br />PERIODIC INSPECTION FARM <br />Ma er Sedi~ent ar Slurry I~poun • is <br /> <br /> <br />INSPECTOR' p,/(~~~ <br />S NAME: Y,/eb.v, s <br />~ c~ i.-e5 <br />DATE: 6 <br />a5 r6 1 <br />N.P.D.E.S. I.D. NO.: CO-0037 656 D.P. 001 <br />FACILITY CONFIGURATION: Cross Valley Pond DATE LAST I NSPECTION: 3 -5 -S `~ <br />SITE NAME: Mesa Gravel Pit Im oundment LOCATION: NE4SE;, Sec. 18, T6N, R87W <br />MINE NAME: Mesa Gravel Pit ( Peabody Coal Company LOCATION: 3.8 mi. ESE of Hayden, <br />MINE I.D. NO.: CMLRB Permit No. 82-36 OWNER'S REP .: Don Zulian, Supt. <br />Circle or Trite in appropriate response <br />1. Foundation preparation (removal of vegetation, stumps, topsoil?) es No <br />2. Lift thickness (inches) 12 inches <br />3. Compaction according to approved plan es No <br />4. Burning (specify extent and location) N/A Y(6(9(X)04d( <br />5. Angle of slope ;J=;~..=; 2:1 upstream, 2.4:1 downstream, total = 4.4:1 _ dA(c(~ <br />6. *Seepage (specify location, color, and approximate volume) <br /> From underdrain pipes es No <br /> At isolated points on embankment s opes es <br /> At natural hillside Yes <br /> Over widespread areas Yes <br /> From downstream founds ion area Yes <br /> "Boils" beneath stream or ponde water Yes <br />7. Cracks or scarps on crest es <br />8. Cracks or scarps on slope Yes <br />9. Sloughing or bulging on slope Yes <br />10. *Major erosion problems Yes N® <br />11. Surface movements in valley bottom or on hillside E~5 No <br />12. *Erosion of toe Yes No <br />13. *Water impounded against toe Yes <br />14. Exis ing embankment freeboard (feet) ~,~~,~.,~ U-ltioi~L, we:v ~ feet <br />15. ~ Increase Decrease in water level (feet) D_Z feet <br />16. Cracks, bulging, or erosion on upstream face Yes <br />17. Visible sumps or sinkholes in slurry surface N/A yF~(X~'o <br />18. *Clogging <br /> Spillway channels and pipes Yes Q <br /> Decant system Yes { <br />~ <br /> <br />Diversion ditc es ~j <br />~ <br />Yes <br />19. *Cracking or crushing of pipes <br /> Spillway pipes <br />D <br />t <br />t lA~jO <br />Y <br /> ecan <br />sys <br />em es <br />20. Trash racks clear and in place N/A ~SXXklf3( <br />*Major adverse changes in these items could cause instability and should be reported to <br />the Engineering Manager and Mine Superintendent for further evaluation. Adverse condi- <br />tions noted in these items should normally be described (extent, location, volume, etc.) <br />in the space on the back of this sheet. <br /> <br /> <br />