Chloromethane
Fort Bend County Water Control and Improvement District 3
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
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
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 |
|---|---|---|
| 2018-07-12 | AE33175 | ND |
| 2018-07-12 | AE33179 | ND |
| 2019-07-09 | AE73725 | ND |
| 2019-07-09 | AE73727 | ND |
| 2020-04-29 | AF08717 | ND |
| 2020-07-28 | AF20896 | ND |
| 2021-05-05 | AF52563 | ND |
| 2021-05-05 | AF52567 | ND |
| 2022-03-23 | AF90252 | ND |
| 2022-03-23 | AF90254 | ND |
| 2023-06-07 | AG43525 | ND |
| 2023-06-07 | AG43529 | ND |