(CNN) - A few thousand more West Virginians learned they could use their tap water Tuesday.
It comes nearly a week after a chemical leak tainted the supply for them and hundreds of thousands of others.
Thousands of gallons of the chemical poured out of a storage facility into the Elk River. The licorice-scented chemical 4-methylcyclohexane methanol is typically used to clean coal.
In response, the state put water restrictions into effect in nine counties Thursday.
The incident begs the question, should there be more regulation of the industry?
In Washington, House Speaker John Boehner, R-OH, says "no."
"We have enough regulations on the books and what the administration ought to be doing is actually doing their jobs. Why wasn't this plant inspected since 1991? I am entirely confident that there are ample regulations already on the books to protect the health and safety of the American people. Somebody ought to be held accountable here," Boehner said.
Nearly two-thirds of the 300,000 people initially prohibited from using their taps in West Virginia still are waiting for the all-clear.
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