Know Your Environment. Protect Your Health.

Chloromethane

Lakewood Water 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.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND100ND
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND80ND
2019ND110ND
2020N/A00N/A
2021ND20ND
2022ND40ND
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
2013-05-07201305080343AMND
2013-05-07201305080435AMND
2013-05-07201305080351AMND
2013-05-08201305090196AMND
2013-05-08201305090180AMND
2013-10-22201310230473AMND
2013-10-22201310230471AMND
2013-10-22201310230501AMND
2013-10-23201310240333AMND
2013-10-23201310240533AMND
2018-03-22ND
2018-07-12ND
2018-07-12ND
2018-07-12ND
2018-07-25ND
2018-07-25ND
2018-07-25ND
2018-08-27ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-19ND
2019-06-21ND
2019-06-21ND
2019-06-21ND
2019-06-21ND
2019-07-23ND
2021-05-054115955ND
2021-05-054115227ND
2022-05-114286299ND
2022-05-114286297ND
2022-05-114286300ND
2022-08-114331437ND