Residents in Dudley, South Hadley, Granby and Pembroke were urged to boil their tap water for at least one minute after traces of E. coli were discovered in samples taken by health officials.

When E. coli bacterium is found into the water, there is a sign that water may be contaminated with human or animal wastes. Officials believe that E. coli may have reached the water through a water main break.

The water system is currently being flushed and more chlorine is added as well. Health officials said the levels of bacteria were minimal, but they still want residents to take precautions in order to not get sick. They recommended bottled water for food preparation and consumption, while the tap water can be used only for washing hands, followed by a hand sanitizer.

While the water is being chlorinated, aquarium owners and users of kidney dialysis machines are advised to treat or filter the water before using it.

E. coli bacteria can cause diarrhea, cramps, nausea, headaches and other symptoms, but the infection can be particularly dangerous for kids, the elderly or people with severely compromised systems.
This is not the first time incidents like this happen. In October 2005, there was a five-day order to boil water after samples showed E. coli. Residents of Nichols College, Bates Road, Airport Road, Alton Drive and Mill Road were advised to boil their water.