Know Your Environment. Protect Your Health.

Chloromethane

Sleepy Valley 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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

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
2018-07-03CA1900903_002_002-201807030843ND
2018-07-03CA1900903_001_001-201807030824ND
2019-12-18CA1900903_001_001-201912180745ND
2019-12-18CA1900903_002_002-201912180745ND
2020-07-08CA1900903_002_002-202007080740ND
2020-07-08CA1900903_001_001-202007080730ND
2021-08-04CA1900903_001_001-202108040720ND
2021-08-04CA1900903_002_002-202108040730ND
2022-06-29CA1900903_001_001-202206291020ND
2022-06-29CA1900903_002_002-202206291028ND
2023-11-15CA1900903_001_001-202311150730ND
2023-11-15CA1900903_002_002-202311150730ND