Know Your Environment. Protect Your Health.

Chloromethane

Smackover Waterworks

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
20190.950 ppb110.950 ppb
20201.12 ppb220.630 ppb - 1.61 ppb
20210.510 ppb21ND - 1.02 ppb
2022ND10ND
20231.24 ppb111.24 ppb

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
2019-02-11190450098010.950 ppb
2020-01-27200300044010.630 ppb
2020-07-27202120017011.61 ppb
2021-01-26210280145011.02 ppb
2021-01-2621028015201ND
2022-01-2422027007301ND
2023-01-31O205870-VOC-11.24 ppb