It was found in the water supply in the area along LaPlaisance Road south of Hull Road to the south end of Bolles Harbor on June 28.
This in that area are recommended to boil water, according to the city which expects to resolve the problem in the next 48 hours.
The bacteria can make you sick, and are a particular concern for people with weakened immune systems.
The city released the following statement: DO NOT DRINK THE WATER WITHOUT BOILING IT FIRST.
Boiling kills bacteria and other organisms in the water.
Continue using boiled or bottled water until further notice.
The symptoms above are not caused only by organisms in drinking water.
People at increased risk should seek advice about drinking water from their health care providers.
For more information, please contact City of Monroe Water System at 734-384-9150, 734-384-9152, or 734-241-5947 (24 hours).
This notice is being sent to you by the City of Monroe Water System.