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EWG's Tap Water Database — 2019 UPDATE

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Chloromethane

Municipality of Anchorage

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND280ND
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 Lab ID Result
2015-03-023198272ND
2015-03-023198302ND
2015-03-023198290ND
2015-03-023198260ND
2015-03-033199540ND
2015-03-033199571ND
2015-03-033199492ND
2015-03-033199582ND
2015-03-033199503ND
2015-03-033199514ND
2015-03-133206978ND
2015-03-133206996ND
2015-06-123262424ND
2015-06-243269671ND
2015-09-163324806ND
2015-09-163324861ND
2015-09-163324910ND
2015-09-163324826ND
2015-09-163324895ND
2015-09-163324842ND
2015-09-233329762ND
2015-09-233329786ND
2015-09-233329738ND
2015-10-303351056ND
2015-10-303351045ND
2015-10-303351074ND
2015-12-153375818ND
2015-12-153375769ND