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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Tulia Municipal Water System

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND20ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-02-18Q1405060009ND
2014-04-24Q1413167011ND
2015-06-09Q1521106004ND
2015-11-30Q1546935002ND
2016-02-17Q1607069001ND
2016-06-30Q1626573001ND
2017-01-19Q1702737002ND
2017-07-13Q1728905004ND
2018-01-18Q1802140001ND
2018-01-18Q1802140004ND
2019-01-24Q1903572008ND
2019-01-24Q1903572006ND