Know Your Environment. Protect Your Health.

Chloromethane

NJ Water Supply Authority Manasquan

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND10ND
2014ND20ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND60ND
2019ND30ND
2020ND20ND
2021ND10ND
2022N/A00N/A
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
2013-12-031061943003ND
2014-03-041074262003ND
2014-09-022026740003ND
2018-03-27380327077ND
2018-03-27380327078ND
2018-03-27380327079ND
2018-09-04380904737ND
2018-09-04380904736ND
2018-09-04380904735ND
2019-03-26390326704ND
2019-09-10390910713ND
2019-09-11390912720ND
2020-03-173093847001ND
2020-09-17200917023-02ND
2021-03-09210309060-02ND