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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

City of Blythe

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013N/A00N/A
2014ND40ND
2015ND20ND
2016ND40ND
2017ND10ND

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
2012-12-264790-031-0735ND
2012-12-264790-030-0730ND
2014-10-21B4J2224-01ND
2014-10-21B4J2224-07ND
2014-12-174790-015-0740ND
2014-12-174790-006-0640ND
2015-04-14B5D1312-03ND
2015-04-14B5D1312-01ND
2016-11-294790-031-1000ND
2016-11-294790-030-1015ND
2016-11-294790-015-1100ND
2016-11-294790-010-1115ND
2017-11-204790-006-0700ND