Tanks at the facility that spilled chemicals into 300,000 West Virginians’ water supply were deemed out of federal compliance three months before the leak.
U.S. Chemical Safety Board Chairman Rafael Moure-Eraso told a congressional panel Monday that Freedom Industries ordered its own review of its tanks last October.
Environmental consultants found storage units at the Charleston location were “not necessarily” in full compliance with Environmental Protection Agency and industry standards.
Moure-Eraso also said the tank that spilled was rested on porous gravel and soil. A last resort containment wall was not lined and provided little protection.
The House Transportation and Infrastructure Committee held a hearing on the spill Monday in Charleston.