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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Benders Landing Water Plant 1 & 2

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND30ND
2016ND30ND
2017ND30ND
2018ND30ND
2019ND30ND

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
2014-06-05AC56099ND
2015-08-20AD04945ND
2015-11-02AD12218ND
2015-11-02AD12220ND
2016-11-30AD59615ND
2016-11-30AD59623ND
2016-11-30AD59619ND
2017-10-03AD99063ND
2017-10-03AD99061ND
2017-10-03AD99065ND
2018-08-09AE36388ND
2018-08-09AE36390ND
2018-08-09AE36392ND
2019-11-05AE88470ND
2019-11-05AE88472ND
2019-11-05AE88478ND