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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

NJ American Water - Western

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.

 

34

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND330ND
2014ND10ND
2015N/A00N/A
2016N/A00N/A
2017N/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
2013-05-0121873501ND
2013-05-0121871901ND
2013-05-0221872301ND
2013-05-0221872901ND
2013-05-0621874301ND
2013-05-0821873301ND
2013-05-0821872501ND
2013-05-0921873701ND
2013-05-1321873901ND
2013-05-1321872701ND
2013-05-1621872101ND
2013-06-0621875101ND
2013-06-1721874501ND
2013-06-1921871701ND
2013-07-0121874901ND
2013-07-2421874701ND
2013-08-1923160401ND
2013-08-2323490801ND
2013-08-2323491001ND
2013-08-2323490401ND
2013-08-3023490601ND
2013-09-0623490201ND
2013-10-1123875801ND
2013-11-0423874401ND
2013-11-0423876001ND
2013-11-0423876601ND
2013-11-0623874801ND
2013-11-0623875001ND
2013-11-0623876201ND
2013-11-0823875201ND
2013-11-0823876401ND
2013-11-0823875601ND
2013-11-1323873301ND
2014-02-0524727501ND