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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Sunrise Water Authority

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND80ND
2014ND120ND
2015N/A00N/A
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
2013-10-281056382016ND
2013-10-281056382010ND
2013-10-281056382004ND
2013-10-281056382007ND
2013-10-281056382001ND
2013-10-281056382013ND
2013-10-291056382019ND
2013-10-291056382024ND
2014-01-211068625004ND
2014-01-211068625001ND
2014-04-282004370027ND
2014-04-282004370015ND
2014-04-282004370018ND
2014-04-282004370025ND
2014-04-292004370004ND
2014-04-292004370001ND
2014-04-292004370012ND
2014-04-292004370007ND
2014-07-282020859005ND
2014-07-282020859008ND