The Poseyville Municipal Water Department said Friday that high levels of nitrate have shown up in tests of its drinking water.
The department advises people not to give the water to infants under six-months-old or use it to make infant formula.
Drinking water samples from January 23 – February 1 showed nitrate levels at 10.3 and 10.4 mg/L. The maximum contaminant level (MCL) for nitrate is anything above 10 mg/L.
If infants drink the water, the department said they could become seriously ill, and if untreated they may die.
Symptoms include shortness of breath and blue baby syndrome (blueness of the skin).
If symptoms occur, seek medical attention.
The department said boiling, freezing, or letting the water stand will not reduce the nitrate level.
Excessive boiling can even make the nitrates more concentrated.
Nitrates in drinking water are caused by runoff from fertilized farm ground.
The Town of Poseyville plans to contact adjacent property owners to educate them about nitrate levels and ask them to monitor the staging of their fertilizers.