Our contractor completed a small pipeline project, backfilling the trench with a predominantly sand material which also included some stone as well. Upon having several compaction tests taken, the material was seen to fall in the 90 to 95 percent range, failing our required 95% modified min, which I believe was due to a very low MC.
Aside from tearing up the backfill, replacing with suitable material, and re-compacting, are there any other options? Would flooding the trench cause more harm than good?
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