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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of 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.

MORE ABOUT THIS CONTAMINANT

 

98

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND360ND
2014ND80ND
20150.0606 ppb181ND - 1.09 ppb
2016ND80ND
2017ND100ND
2018ND130ND
2019ND50ND

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
2013-04-16714834-8659ND
2013-04-16714830-8627ND
2013-04-16714828-8627ND
2013-04-16714832-8627ND
2013-04-17715098-8659ND
2013-04-17715137-8680ND
2013-04-22715669-8680ND
2013-04-22715651-8680ND
2013-05-21720758-8898ND
2013-05-21720744-8914ND
2013-05-22721111-8914ND
2013-05-22721086-8898ND
2013-05-22721113-8914ND
2013-05-22721108-8914ND
2013-06-04723382-9013ND
2013-06-04723380-9013ND
2013-08-20739407-9592ND
2013-09-04742278-9691ND
2013-10-16753507-10050ND
2013-10-16753505-10058ND
2013-10-22754256-10078ND
2013-10-22754250-10090ND
2013-10-23754851-10090ND
2013-10-23754860-10090ND
2013-10-23754872-10090ND
2013-10-23754870-10090ND
2013-11-05757050-10235ND
2013-11-05757042-10235ND
2013-11-05757067-10235ND
2013-11-05757061-10235ND
2013-11-06757369-10243ND
2013-11-06757375-10243ND
2013-11-06757381-10243ND
2013-11-19759567-10322ND
2013-11-19759599-10330ND
2013-11-19759573-10322ND
2014-02-04278454ND
2014-02-04278453ND
2014-02-04278455ND
2014-02-04278456ND
2014-05-21294416ND
2014-07-28309707ND
2014-10-28328557ND
2014-10-28328556ND
2015-01-21343294ND
2015-01-21343293ND
2015-01-21343292ND
2015-01-21343291ND
2015-02-11343300ND
2015-02-11343295ND
2015-02-11343296ND
2015-02-11343297ND
2015-02-11343298ND
2015-02-11343299ND
2015-03-02345934ND
2015-05-20353449ND
2015-05-20353450ND
2015-05-20353451ND
2015-05-20353452ND
2015-07-28370830ND
2015-10-27391749ND
2015-10-273917501.09 ppb
2016-02-01ND
2016-02-01ND
2016-02-01ND
2016-02-01ND
2016-04-05ND
2016-09-07ND
2016-10-25ND
2016-10-25ND
2017-01-10ND
2017-01-10ND
2017-01-10ND
2017-01-10ND
2017-02-28ND
2017-02-28ND
2017-02-28ND
2017-05-22ND
2017-08-29ND
2017-10-02ND
2018-01-23530717ND
2018-01-23530714ND
2018-01-23530715ND
2018-01-23530716ND
2018-02-26530719ND
2018-02-26530718ND
2018-04-09546687ND
2018-06-04541542ND
2018-06-04541541ND
2018-06-04541540ND
2018-07-25560138ND
2018-09-04560238ND
2018-10-23577080ND
2019-01-22592258ND
2019-01-22592257ND
2019-01-22592256ND
2019-07-29621218ND
2019-10-28638456ND