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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

City of Glendale

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND260ND
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/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 Lab ID Result
2013-06-03201306030205AMND
2013-06-03201306030203AMND
2013-06-03201306030201AMND
2013-06-03201306030207AMND
2013-06-05201306050320AMND
2013-06-05201306050318AMND
2013-06-12201306120309AMND
2013-06-12201306120311AMND
2013-06-12201306120313AMND
2013-06-24201306240072AMND
2013-09-03201309030162AMND
2013-09-03201309030166AMND
2013-09-03201309030164AMND
2013-09-12201309120358AMND
2013-09-26201309260282AMND
2013-12-02201312020140AMND
2013-12-02201312020138AMND
2013-12-02201312020136AMND
2013-12-04201312040824AMND
2013-12-04201312040822AMND
2013-12-04201312040820AMND
2013-12-04201312040826AMND
2013-12-09201312090096AMND
2013-12-10201312100490AMND
2013-12-10201312100488AMND
2013-12-10201312100492AMND
2014-01-16201401160466AMND
2014-03-03201403030040AMND
2014-03-03201403030038AMND
2014-03-27201403270383AMND