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EWG's Tap Water Database — 2021 UPDATE

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Methomyl

Chelmsford Water District

Methomyl is an extremely toxic carbamate insecticide that targets the nervous system. In 2015 the EPA restricted some uses of methomyl on some food crops to reduce risks to human health.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND80ND
2017N/A00N/A
2018N/A00N/A
2019ND30ND

ppb = parts per billion

All test results

Date Result
2016-02-01ND
2016-02-01ND
2016-02-01ND
2016-05-26ND
2016-08-02ND
2016-08-02ND
2016-08-02ND
2016-08-03ND
2019-02-05ND
2019-02-05ND
2019-02-05ND