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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

North Tonawanda City

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND10ND
2016ND10ND
2017ND10ND
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

Date Lab ID Result
2014-08-06NT POC 2014Q3ND
2014-08-1290001 082014ND
2014-11-1799001 112014 310ND
2015-07-08NT POCS 07-2015ND
2016-07-07NT POCS 07-2016ND
2017-07-06NT POCS 07-2017ND
2018-07-05NT POCS 07-2018ND
2019-07-10NT POCS 07-2019ND