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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Washington Township MUA

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND200ND
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
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
2014-03-1214033141-001ND
2014-06-2714070193-001ND
2014-09-2614092461-001ND
2015-03-262062029012ND
2015-03-262062029018ND
2015-03-262062029015ND
2015-03-262062029006ND
2015-03-262062029003ND
2015-03-262062029009ND
2015-03-262062029027ND
2015-03-262062029030ND
2015-03-262062029024ND
2015-03-262062029021ND
2015-09-172096817019ND
2015-09-172096817022ND
2015-09-172096817001ND
2015-09-172096817025ND
2015-09-172096817007ND
2015-09-172096817030ND
2015-09-172096817013ND
2015-09-172096817016ND
2015-09-172096817004ND
2015-09-172096817010ND