ADA, OK -- Close to 100 residents in Pontotoc County are without clean water after E. Coli was found in one of the water samples.
The City of Ada has issued a boil order for those who get their water from the raw water line at Byrd's Mill Spring.
"From Byrd's Mill Spring to the water treatment plant which is basically by the tennis courts in Ada, those people that tap into the raw water line and receive their water from that need to boil their water," said City Attorney, Frank Stout.
Stout says the city began notifying residents of the boil order on Wednesday.
Those affected are advised to bring water to a rolling boil, then let it boil for 1 minute before using it to cook or drink -- or just use bottled water.
Stout says if residents have a chlorinator, their tap water should be okay to use.
"Raw water line...it comes straight out of the spring untreated, and so we require them to put a chlorinator on that and that's part of the agreement to tap on the raw water line, and so if they have a chlorinator they should be fine," Stout said.
Stout says residents within Ada city limits are not affected by the boil order.
He says the city's water is tested and treated before entering the distribution system.
One resident who is affected says he just plans to steer clear of the tainted water until further notice.
"Everyone goes to walmart everyday anyway so might as well pick up an extra case and drink that instead," Patrick Killian said.
Stout says the city has notified the Oklahoma Department of Environmental Quality. The city is also running more tests to determine what caused the contamination.