City of Princeton issued the following announcement on April 23.
In preparation for our semi-annual water main flushing program, the City of Princeton Water Department has increased the chlorine levels to the water. During this time you may notice a slightly stronger odor of chlorine. If you find this odor objectionable for drinking you may keep a pitcher of water in the refrigerator and the chlorine will dissipate after just a few minutes.
We are planning on starting our city wide hydrant flushing next month. During this time customers may experience a chlorine odor, cloudy or discolored water and brief periods of low water pressure.
We urge you to please be cautious near open fire hydrants. If you have any questions, please feel free to call the Princeton Water Plant at 815-872-0811 ext. 1304.
Original source can be found here.