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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

USA - Fort Stewart Main

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
2014ND50ND
2015ND60ND
2016ND10ND
2017ND10ND
2018ND60ND
2019ND10ND

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
2014-02-192977585ND
2014-02-192977572ND
2014-05-28AI41563ND
2014-08-183085506ND
2014-08-183085515ND
2015-03-18AI69320ND
2015-03-18AI69324ND
2015-03-18AI69323ND
2015-03-18AI69322ND
2015-03-18AI69321ND
2015-03-18AI69319ND
2016-03-24AJ08731ND
2017-05-31AJ56307ND
2018-05-10AJ89326ND
2018-05-10AJ89325ND
2018-05-10AJ89324ND
2018-05-10AJ89323ND
2018-05-10AJ89322ND
2018-05-31AJ90400ND
2019-05-20AK17839ND