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Underground Storage Tank Engineered Fill

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flatbottom

Structural
Joined
May 12, 2008
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19
Location
US
I have a new customer that is questioning what his predecessor did 9 years ago. Instead of using sand to backfill around the UST, he used iron ore taconite tailings. Has anybody done this before and has it had any negative issues on the integrity of the UST. I am assuming the UST has a tar coating on the exterior (no records)
 
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