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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Suffern Village

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015N/A00N/A
2016ND120ND
2017ND120ND
2018ND150ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-25420-75183-1ND
2014-02-25420-75183-2ND
2014-02-25420-75183-3ND
2014-03-1135129854001AMND
2014-05-06420-77404-1ND
2014-05-06420-77404-2ND
2014-05-06420-77404-3ND
2014-08-12420-81018-1ND
2014-08-12420-81018-2ND
2014-09-1635155500001AMND
2014-11-10420-84383-2ND
2014-11-10420-84383-3ND
2014-11-10420-84383-1ND
2016-02-09420-100623-1ND
2016-02-09420-100623-3ND
2016-02-09420-100623-2ND
2016-02-09420-100623-4ND
2016-02-10420-87155-8ND
2016-05-094201041631ND
2016-05-094201041633ND
2016-05-094201041634ND
2016-05-094201041632ND
2016-11-21420-113545-3ND
2016-11-21420-113545-1ND
2016-11-22420-113545-2ND
2017-02-13420-116844-2ND
2017-02-13420-116844-3ND
2017-02-13420-116844-1ND
2017-03-27420-118560-1ND
2017-05-10420-120737-3ND
2017-05-10420-120737-1ND
2017-05-10420-120737-2ND
2017-05-10420-120737-4ND
2017-10-05DW-86348ND
2017-10-05DW-86354ND
2017-10-17DW86553ND
2017-10-17DW-86482ND
2018-02-19420-133128-3ND
2018-02-19420-133128-1ND
2018-02-19420-133128-4ND
2018-02-19420-133128-2ND
2018-05-14420-136733-5ND
2018-05-14420-136733-8ND
2018-05-15420-136733-6ND
2018-05-15420-136733-7ND
2018-08-08420-140886-4ND
2018-08-08420-140886-1ND
2018-08-09420-140886-2ND
2018-08-09420-140886-3ND
2018-11-05420-145069-1ND
2018-11-05420-145069-2ND
2018-11-05420-145069-4ND