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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Hastings

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND40ND
2014ND50ND
2015ND60ND
2016ND50ND
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
2012-07-2412G2046-02ND
2013-05-3013E2546-01ND
2013-05-3013E2548-01ND
2013-05-3013E2549-02ND
2013-05-3013E2549-03ND
2014-12-102044527003ND
2014-12-102044527006ND
2014-12-102044527009ND
2014-12-102044527012ND
2014-12-102044527015ND
2015-06-0915F0596-03ND
2015-06-092075906015ND
2015-06-092075906012ND
2015-06-092075906009ND
2015-06-092075906006ND
2015-06-092075906003ND
2016-03-223418445ND
2016-03-223418465ND
2016-03-223418503ND
2016-03-223418533ND
2016-03-223418541ND