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• <br />SEDiME1dTATION PONDS <br />STRUCTURAL INSPECTION PROGRAM <br />PURPOSE: To conduct structural inspection of sedimentation pond <br />dams for various hazardous conditions. This is as required by 30 CFR <br />817.46(b). <br />METHOD OF INSPECTION: <br />1. Visually check for deformation in individual steel bin wall <br />members. This would constitute twisting and buckling. <br />2. Visually check for deformation of bins in general. This <br />would constitute leaning of dam or uneven appearance. <br />3. Visually check for water leaks through or around the dam. <br />This might indicate piping out of dam material. The visual check <br />will go sufficiently downstream to observe leakage. <br />9. Check for erosion around the spillway aprons or around the <br />dam that might undermine the dam. <br />5. Dam movements will be monitored using surveying stations and <br /> <br />technic7ues. <br />l <br />SEl71M ENTA"rlo+.! <br />~Nv <br />i'E}=MA FJ ~Ir <br />srA-TioN <br />bra) WAIL <br />~J <br />"; <br />. ~, <br />rarzU=r <br />eETENTION bAM <br />-=PLAN - MON~TOi?-r.IG LAYouT <br />- Nat To sca l.~ <br />--~-- <br />k1OtJ{rO~ ~Ifl <br />-GF~tJD <br />- LFVEI. <br />fl=1AIL,- MONITo2 <br />~!~ <br />rloT Tb ~ LE <br />