As a precaution after a chemical train derailed in West Virginia, the local water utility upgraded its purification system.

Huntington, West Virginia local time. Water treatment in West Virginia is being upgraded as a precaution after a train carrying chemicals derailed, sending a toxic plume over neighboring Ohio.

West Virginia American Water said on Sunday that it would be constructing an additional intake on the Guyandotte River. The utility company said there has been no change in the quality of the raw water it draws from the Ohio River.

There are now no drinking water advisories in effect, and it is the policy of the corporation to prioritize the health and safety of their consumers above everything else.

Fifty cars, including 10 hauling dangerous materials, derailed in an accident on February 3 in East Palestine, Ohio. Later, staff set fire to five of the cars, unleashing a dense cloud of vinyl chloride into the air as a safe means of disposing of the extremely combustible and dangerous chemicals.

Officials in Ohio and Pennsylvania evacuated certain nearby communities out of an abundance of caution, but residents of those areas have subsequently been given the all-clear to return home.

The citizens of both states have launched a federal lawsuit to force Norfolk Southern to implement health monitoring.

On Thursday, two Pennsylvanians filed a lawsuit against the railroad, demanding that everyone living within a thirty mile (48 kilometer) radius of the incident be tested for exposure to toxic chemicals and given any necessary treatment. Damages in the form of money are also sought in the claim.