Know Your Environment. Protect Your Health.

Chloromethane

Cal Am - Dunnigan

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020N/A00N/A
2021ND10ND
2022ND20ND
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
2021-08-12CA5700712_011_011-202108121008ND
2022-03-17CA5700712_001_001-202203171130ND
2022-08-23CA5700712_050_050-202208230900ND
2023-01-17CA5700712_050_050-202301171100ND
2023-05-08CA5700712_050_050-202305081020ND
2023-08-03CA5700712_050_050-202308031050ND
2023-11-08CA5700712_050_050-202311080940ND