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PERIODIC INSPECTION FORM <br />D7ater, Sediment, or Slurry Impoundments <br />INSPECTOR'S NAME: ~ Q1a ~n~ $ --.1 Otie~ DATE: ~~ - ~ ~~' <br />NPDES I.D. NO.: CO- 0000221 D.P. 012 ( <br />.Z <br />FACILITY CONFIGURATION: Cros s-Valley Pond DATE LAST _ <br />6_~ <br />INSPECTION: <br />SITE NAME: Pond #012 LOCATION: NE'k ~ SeC 19 TSN R87W <br />MINE NAME: Yoast Mine lSeneca Coal Co) LOCATION: 8.5 mi. SE of Hayden, CO <br />MINE I.D. NO.: CMLRD Permit No. C-94-082 OWNER'S REP.: Greaa Kitchen, Gen Mar <br />Circle or write in~oropriate resconse <br />1. Foundation preparation (removal of vegetation, stumps, topsoil: y~ <br />2. Lift thickness: ~ i n. <br />3. Compaction according to approved plan: yes <br />4. Burning (specify extent and location): No <br />5. Angle of slope: 3.0:1 upstream, 3.0:1 downstream Total = 6.0: 1 <br />6. *Seepage (specify location, color, and approximate volume) <br /> <br /> From underdrain pipes: L1o <br /> At isolated points on embankment slopes: Yes o N/A <br /> At natural hillside: Yes No N/A <br /> Over widespread areas: Yes No N/A <br /> From downstream foundation area: ®e No N/A <br /> "Boils" beneath stream or ponded water: Yes Nb'j N/A <br />7. Cracks or scarps on crest: Yes ~ N/A <br />8. Cracks or scarps on slope: I,v~~~..vw v~ So~~ cvc,c S es No N/A <br />9. Sloughing or bulging on slope: Yes No N/A <br />10. *Major erosion problems: es No N/A <br />11. Surface movements in valley bottom or on hillside: Yes No N/A <br />12. *Erosion of toe: Yes ~ N/A <br />13. *Water impounded against toe: Yes o N/A <br />14. Exis ing embankment Freeboard: /normal = 8.0') " feet $.o <br />15. ~ Increase Decrease in water leve L- ~ feet <br />16. Cracks, bulging, or erosion on upstream face: Yes ~ N/A <br />17. Visible sumps or sinkholes in slurry surface: NLA <br />18. *Clogging <br /> <br />Spillway channels and pipes: ~^^ <br />Yes /NO l <br />N/A <br /> Decant system: Yes No N/A <br /> Diversion ditches: N~ <br />19. *Cracking or crushing of pipes <br /> Spillway pipes: Yes o N/A <br /> Decant system: Yes o N/A <br />20. Trash racks clear and in place: Yes No N/A <br />*Ma jor adverse changes in these items could cause instability and shou ld be reported to <br />the Engineering Manager and Mine Superintendent for further eval uation. Adve rse <br />con ditions noted in these items should normally be described (extent, location, volu me, <br />etc .) in the space on the back of this sheet. <br />