Evansville and Henderson water Officials are continuing to monitor the Ohio River for signs of the chemical that contaminated the water supply up river in West Virginia.
It is expected to reach the Evansville-Henderson area by Sunday morning.
Evansville Water and Sewer Utility say there is no threat and unlike Cincinnati, they won't shut down their intake valves.
The concentration of the chemical is said to be well below CDC recommended levels and the spill continues to dilute.
Evansville and Henderson city officials are in constant contact with the Ohio River Valley Water Sanitation Commission, who is monitoring the plume.
Director of Utilities, Allen Mounts said everything will be okay.
"Personally, I'm not concerned but I understand when anybody hears a chemical spill that they're concerned about health," said Mounts. "If you have a concern, call the Vanderburgh County Health Department. I've been in contact with them and they are not concerned."
Water officials in Henderson and Louisville said the chemical will dilute further and can be adequately treated by their facilities.
Mounts said they'll know even more once the plume arrives in Louisville on Friday.
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