LINDEN, NJ – On April 22, New Jersey American Water will resume using chloramines in water treatment at its Raritan-Millstone and Canal Road Water Treatment plants. These plants serve customers in Hunterdon, Mercer, Middlesex, Somerset and Union counties.

In mid-February, as part of an annual maintenance program for its water distribution system, the water treatment process was temporarily changed from a chloramine (combined) residual to free chlorine residual. Chloramines have long been an effective method of water disinfection that meet all EPA and NJDEP drinking water standards, and have been used by New Jersey American Water since the 1980s.

The treatment change applies to New Jersey American Water customers in the following communities: (Communities with an asterisk purchase water from New Jersey American Water.)

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Hunterdon County: Flemington Borough*, Frenchtown Borough, Raritan Township,
Readington Township, and Tewksbury Township

Mercer County: Hopewell Township, Lawrence Township, Princeton Borough, Princeton
Junction, Princeton Township and West Windsor Township

Middlesex County: Cranbury Township, Dunellen Borough, Edison Township, Jamesburg
Borough, Middlesex Borough, Monroe Township, North Brunswick*, Piscataway Township,
Plainsboro Township, South Brunswick Township and South Plainfield Borough

Somerset County: Bedminster Township, Bernards Township, Bernardsville Borough, Bound
Brook Borough, Branchburg Township, Bridgewater Township, Far Hills Borough, Franklin
Township, Green Brook Township, Hillsborough Township, Manville Borough, Millstone
Borough, Montgomery Township, North Plainfield Borough, Peapack & Gladstone Borough,
Raritan Borough, Somerville Borough, South Bound Brook Borough, Warren Township and
Watchung Borough

Union County: Berkley Heights Township, City of Rahway*, Clark Township, Cranford
Township, Fanwood Borough, Garwood Borough, Hillside Township, Kenilworth Borough,
Linden City, Mountainside Borough, New Providence Borough, Plainfield City, Roselle
Borough, Roselle Park Borough, Scotch Plains Township, Springfield Township, Summit City,
Union Township, Westfield Township and Winfield Park Township*

The two-month changeover to free chlorine residual enabled the company to perform routine
maintenance. During the transition to free chlorine residual, some customers may have noticed a
slight chlorine taste and odor in their water. With the resumption of the chloramine process, the
taste and smell of chlorine will subside.


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