(NBC News) West Virginia residents who have been without water for several days are starting to turn their faucets on again.
About one-third of the residents affected by last week's chemical spill can use their tap water again to cook, bath and drink it if they want.
Still, officials say it will be a couple more days before everyone in the nine county area that was impacted by that chemical spill has usable tap water.
The U.S. Chemical Safety Board and the U.S. Attorney are conducting an investigation of the accident.
West Virginia officials say there will be some changes in regulations and postings concerning the chemical plant that caused the contamination.
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