Know Your Environment. Protect Your Health.

Chloromethane

Groveland Water Department

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2020-02-05ND
2020-04-01ND
2020-04-01ND
2020-07-15ND
2020-10-05ND
2021-01-20ND
2021-04-05ND
2021-04-05ND
2021-07-21ND
2021-10-18ND
2022-02-02ND
2022-04-04ND
2022-04-04ND
2022-07-20ND
2022-11-02ND
2023-01-18ND
2023-05-03ND
2023-05-03ND
2023-07-19ND
2023-10-04ND