Know Your Environment. Protect Your Health.

Chloromethane

First U D of Hawkins Company

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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
2014ND40ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND50ND
2019ND50ND
2020ND30ND
2021ND20ND
2022ND50ND
2023ND70ND

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 Result
2013-08-19ND
2013-08-19ND
2013-11-12ND
2013-11-12ND
2014-02-25ND
2014-02-25ND
2014-05-08ND
2014-05-08ND
2018-01-17ND
2018-02-14ND
2018-05-16ND
2018-07-11ND
2018-12-17ND
2019-02-19ND
2019-03-13ND
2019-04-22ND
2019-07-17ND
2019-11-18ND
2020-01-20ND
2020-01-20ND
2020-11-18ND
2021-03-17ND
2021-03-17ND
2022-03-14ND
2022-03-14ND
2022-05-17ND
2022-07-13ND
2022-11-15ND
2023-01-11ND
2023-01-11ND
2023-01-11ND
2023-06-20ND
2023-07-12ND
2023-08-16ND
2023-10-17ND