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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Aqua Pa Bensalem

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.

 

12

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
2014ND90ND
2015ND30ND
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
2014-05-21AE33720ND
2014-05-23AE34250ND
2014-05-23AE34247ND
2014-08-27AE46273ND
2014-08-27AE46276ND
2014-08-27AE46282ND
2014-11-19AE57228ND
2014-11-21AE57356ND
2014-11-21AE57353ND
2015-03-25AE70051ND
2015-03-25AE69764ND
2015-03-27AE69067ND