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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Savannah-Wilmington Island

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
2014ND90ND
2015N/A00N/A
2016N/A00N/A
2017ND40ND
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
2014-01-2735124091001AMND
2014-03-0535128834001AMND
2014-07-0935145658001AMND
2014-08-0535149145001AMND
2014-08-19AI50401ND
2014-08-19AI50402ND
2014-08-19AI50403ND
2014-08-19AI50404ND
2014-09-04AI52443ND
2017-08-28AJ65947ND
2017-08-28AJ65948ND
2017-08-28AJ65949ND
2017-08-28AJ65950ND