Know Your Environment. Protect Your Health.

Chloromethane

Fallbrook Utility District

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2015-03-04112590PND
2015-03-04112591PND
2015-09-08115447PND
2015-09-08115448PND
2018-04-12AE22306ND
2018-04-12AE22324ND
2019-05-22AE67711ND
2019-05-22AE67713ND
2020-07-08AF18632ND
2020-07-08AF18652ND
2021-05-03AF52136ND
2021-05-03AF52138ND
2022-03-23AF90216ND
2022-03-23AF90220ND
2023-07-26AG50198ND
2023-07-26AG50204ND