Know Your Environment. Protect Your Health.

Chloromethane

Spanaway Water Company

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND180ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019ND40ND
2020N/A00N/A
2021ND30ND
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
2014-04-15201404160630AMND
2014-04-15201404160620AMND
2014-04-15201404160827AMND
2014-04-21201404220210AMND
2014-04-21201404220370AMND
2014-04-21201404230324AMND
2014-04-21201404230367AMND
2014-04-21201404220212AMND
2014-04-29201404300789AMND
2014-10-06201410070303AMND
2014-10-06201410070319AMND
2014-10-06201410070399AMND
2014-10-06201410070325AMND
2014-10-06201410070305AMND
2014-10-06201410070328AMND
2014-10-07201410080447AMND
2014-10-07201410080459AMND
2014-10-07201410080423AMND
2018-09-25ND
2018-09-25ND
2018-09-25ND
2019-06-05ND
2019-06-05ND
2019-06-05ND
2019-06-06ND
2021-08-044157585ND
2021-08-044157571ND
2021-08-044157592ND
2022-06-074298830ND