Know Your Environment. Protect Your Health.

Chloromethane

South Saint Paul

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.

 

21

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
2018ND40ND
2019ND10ND
2020ND40ND
2021N/A00N/A
2022N/A00N/A
2023ND40ND

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
2013-12-181064638006ND
2013-12-181064638003ND
2013-12-181064638009ND
2013-12-181064638012ND
2014-06-032010352006ND
2014-06-032010352003ND
2014-06-032010352009ND
2014-06-032010352012ND
2018-01-0318A0012-02ND
2018-05-1018E0892-01ND
2018-08-2418H2147-01ND
2018-10-1818J0909-01ND
2019-01-1419A0377-01ND
2020-01-0720A0142-01ND
2020-08-1320H0974-03ND
2020-08-1320H0974-02ND
2020-08-1320H0974-01ND
2023-10-3023J1666-03ND
2023-10-3023J1666-04ND
2023-10-3023J1666-05ND
2023-10-3023J1666-02ND