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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Jones County

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND60ND
2016ND10ND
2017ND20ND
2018ND30ND
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
2014-01-07AI26144ND
2014-02-10104857PND
2014-02-10104856PND
2014-02-10104855PND
2014-02-10104854PND
2014-02-10104853PND
2014-04-21AI38380ND
2014-05-12106930QND
2014-07-09AI45311ND
2014-08-12108846PND
2014-08-12108845PND
2014-08-12108844PND
2014-08-12108843PND
2014-08-12108842PND
2014-10-23AI58303ND
2014-11-10109660PND
2015-01-20AI63073ND
2015-01-20AI63072ND
2015-01-20AI63071ND
2015-04-13AI74631ND
2015-07-13AI82733ND
2015-10-19AI99415ND
2016-03-21AJ08419ND
2017-05-31AJ56310ND
2017-05-31AJ56309ND
2018-05-21AJ89835ND
2018-05-21AJ89834ND
2018-05-21AJ89833ND
2019-05-23AK18228ND