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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

East Grand Rapids

NOTE: East Grand Rapids purchases water from Grand Rapids which is required to test for chloromethane. Sample information shown below was taken by Grand Rapids.

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND30ND
2014ND10ND
2015ND20ND
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019ND10ND

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

NOTE: East Grand Rapids purchases water from Grand Rapids which is required to test for chloromethane. Sample information shown below was taken by Grand Rapids.

Date Lab ID Result
2014-05-05LLF16830ND
2014-07-234G24030-01AND
2014-10-214J22028-01AND
2015-01-215A23012-01AND
2015-04-145D15015-01AND
2018-06-11LLH85533ND
2019-05-09LLI37347ND