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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Jordan Valley Water Conservancy 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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND260ND
2014ND50ND
2015N/A00N/A
2016N/A00N/A
2017N/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 Result
2012-06-27ND
2012-07-18ND
2013-04-16ND
2013-04-16ND
2013-04-16ND
2013-04-16ND
2013-05-01ND
2013-05-01ND
2013-05-08ND
2013-05-08ND
2013-05-15ND
2013-06-05ND
2013-06-26ND
2013-07-09ND
2013-07-11ND
2013-07-11ND
2013-10-03ND
2013-10-03ND
2013-10-03ND
2013-10-03ND
2013-10-09ND
2013-10-10ND
2013-10-15ND
2013-10-22ND
2013-10-29ND
2013-11-05ND
2013-12-02ND
2013-12-02ND
2014-01-02ND
2014-01-07ND
2014-01-07ND
2014-01-13ND
2014-02-19ND