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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Lakehaven Utility District

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

 

57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND150ND
2014ND190ND
2015ND70ND
2016ND20ND
2017N/A00N/A
2018ND40ND
2019ND100ND

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
2013-08-06201308070391AMND
2013-08-06201308070507AMND
2013-08-06201308070393AMND
2013-08-06201308070389AMND
2013-08-06201308070395AMND
2013-08-06201308070497AMND
2013-08-12201308130061AMND
2013-08-12201308130185AMND
2013-08-12201308130146AMND
2013-08-12201308130166AMND
2013-08-20201308210465AMND
2013-08-20201308210574AMND
2013-08-20201308210412AMND
2013-08-26201308280245AMND
2013-08-27201308280248AMND
2014-01-13201401140251AMND
2014-01-13201401140203AMND
2014-01-13201401140201AMND
2014-01-21201401220100AMND
2014-01-22201401230160AMND
2014-01-22201401230192AMND
2014-01-22201401230158AMND
2014-01-22201401230194AMND
2014-04-16201404170317AMND
2014-04-22201404230374AMND
2014-05-13201405140667AMND
2014-06-03201406040625AMND
2014-07-01201407020552AMND
2014-07-08201407090806AMND
2014-07-09201407100475AMND
2014-07-22201407230705AMND
2014-07-22201407230568AMND
2014-07-22201407230564AMND
2014-09-30201410010210AMND
2015-02-2602520ND
2015-09-2215372ND
2015-09-2215372ND
2015-09-2215371ND
2015-09-2215371ND
2015-09-2215371ND
2015-10-2017144ND
2016-06-07ND
2016-07-19ND
2018-05-15ND
2018-06-19ND
2018-07-10ND
2018-07-10ND
2019-06-05ND
2019-06-05ND
2019-06-12ND
2019-06-12ND
2019-07-23ND
2019-07-31ND
2019-08-27ND
2019-09-03ND
2019-09-04ND
2019-10-30ND