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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Suez

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.

 

24

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
2013N/A00N/A
2014ND240ND
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
2014-01-27201401280230AMND
2014-01-27201401280213AMND
2014-04-23201404240446AMND
2014-04-23201404240478AMND
2014-04-23201404240561AMND
2014-04-29201404300466AMND
2014-04-29201404300479AMND
2014-04-29201404300778AMND
2014-04-29201404300473AMND
2014-04-30201405010391AMND
2014-04-30201405010395AMND
2014-04-30201405010475AMND
2014-07-29201407300313AMND
2014-07-29201407300233AMND
2014-10-06201410070321AMND
2014-10-06201410070313AMND
2014-10-07201410080463AMND
2014-10-07201410080467AMND
2014-10-09201410100225AMND
2014-10-09201410100267AMND
2014-10-14201410150227AMND
2014-10-14201410150249AMND
2014-10-15201410160328AMND
2014-10-15201410160378AMND