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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Town of Queen Creek

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND140ND
2014N/A00N/A
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
2013-03-18201303190024AMND
2013-03-18201303190034AMND
2013-03-18201303190018AMND
2013-03-18201303190038AMND
2013-03-18201303190043AMND
2013-03-18201303190041AMND
2013-03-18201303190036AMND
2013-09-11201309110463AMND
2013-09-11201309110459AMND
2013-09-11201309110461AMND
2013-09-11201309110469AMND
2013-09-11201309110467AMND
2013-09-11201309110471AMND
2013-09-11201309110465AMND