Know Your Environment. Protect Your Health.

Chloromethane

Arlington Waterworks

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND10ND
2019N/A00N/A
2020ND10ND
2021ND10ND
2022N/A00N/A
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2014-04-21106620PND
2014-04-21106621PND
2014-10-22109390PND
2014-10-22109391PND
2018-05-17122505ND
2020-06-25438508ND
2021-05-121253528ND
2023-04-191314808ND
2023-08-101358937ND
2023-10-111383167ND