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~BACKFILL MATERIAL <br />GROUND SURFACE <br />3~ <br />CEMENT PLUG <br />7~ ~` <br />_ ~ PLUG ACCORDING TO 4~07~3(2) <br />~ (for those intersecting aquifers) , <br />• <br />TYPICAL BOREHOLE SEAL <br />• ' Fiyure 5 <br />2=05-275 <br />(Repaginatad 2/1.0/04) <br />