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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Fort Elliott Cisd Briscoe

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.

 

9

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND20ND
2014N/A00N/A
2015ND10ND
2016ND10ND
2017ND30ND
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
2013-04-15101075PND
2013-11-20102559QND
2015-11-30Q1547012001ND
2016-07-27Q1631238002ND
2017-04-25Q1716723003ND
2017-08-09Q1733950002ND
2017-11-08Q1757421002ND
2018-02-08Q1805287002ND
2019-02-13Q1906864001ND