The West Virginia water supply was upgraded to include additional purifying measures after a chemical train derailed in the state.

According to the time and date in Huntington, West Virginia, it is now time there. Because of the recent accident of a train carrying chemicals that spread a toxic plume over neighboring Ohio, water treatment in West Virginia is being improved as a preventive measure.

On Sunday, West Virginia American Water said it will increase its water intake from the Guyandotte River. The utility company claims there has been no change in the purity of the raw water it obtains from the Ohio River.

Company policy places customer health and safety ahead of anything else, and recommendations regarding drinking water have been lifted.

Fifty trains, ten of which were carrying dangerous chemicals, derailed in an accident on February 3 near East Palestine, Ohio. A thick mist of vinyl chloride was sprayed into the air when the employees set fire to five of the cars. This was done so that the potentially explosive and dangerous substances could be removed without incident.

Authorities had previously ordered the evacuation of certain nearby villages in Ohio and Pennsylvania out of an abundance of caution, but their citizens have since been permitted to return home.

Two groups of residents from each state have gone to federal court to demand that Norfolk Southern perform health checks.

On Thursday, two Pennsylvanians sued the railroad, requesting that they test and treat everyone within a thirty-mile (48-kilometer) radius of the incident for exposure to harmful chemicals. They also wanted the railroad to pay for any necessary tests and medical care. Additionally, monetary recompense for losses is being sought through this lawsuit.