At 12 p.m. on Saturday, the Massachusetts Department of Environmental Protection (DEP) lifted the Boil Water Order it had issued for western parts of the city on Friday.
The DEP told CBS 3 that it had detected a fecal indicator in a water sample collected on July 2, from one of the city's eight wells.
Since the positive test, the DEP has conducted five repeat tests with no signs of the indicator.
To correct the situation, the DEP stated they boosted the chlorine levels in two of the city's wells, and are installing a temporary chlorine injection system into another.
The well that tested positive for the fecal indicator will remain off-line until it is investigated for potential signs of contamination.
The affected areas were south of the Westfield River and west of Shepard Street, Smith Avenue, High Street and Southwick Road.
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