Scope While excavating a piece of property , the railroad discovered a buried tank farm of six 3,000-gallon underground storage tanks (USTs). The tanks were double-walled with concrete between the walls; the USTs were then embed- ded in concrete. Four tanks were ? lled with water that had seeped in over the years and the other two were ? lled with sand. The railroad needed a contractor to clean out and remove the tanks and re? ll the area s

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