Know Your Environment. Protect Your Health.

Chloromethane

Rothschild 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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND20ND
2021ND10ND
2022ND10ND
2023N/A00N/A

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
2018-03-131044837ND
2018-06-191062274ND
2018-06-191062272ND
2018-09-111079505ND
2018-11-131092763ND
2019-04-231116903ND
2019-05-071119529ND
2019-08-271144005ND
2019-08-271144003ND
2019-10-291157914ND
2020-08-101205736ND
2020-08-101205729ND
2021-08-031269115ND
2022-07-191324684ND