Word: thms
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Dates: during 1980-1989
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...state claims that Cambridge violated a regulation requiring community water systems to notify the public if the level of a contaminant known as trihalomethanes (THMs) in drinking water exceeds a certain level...
State law sets the maximum amount of THMs at 100 parts per billion, but over the past year, the level in Cambridge's water ranged between...
...THMs form as a by-product to the disinfection process when chlorine reacts to organic compounds in the water. Although the contaminant's effects on people are still being studied, it is thought to cause cancer, according to a state letter dated November...
...Healy said Cambridge was aware of the level of THMs in drinking water and met its legal obligation to notify its citizens...