Chloromethane
Tri County Point Water System 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 |
|---|---|---|
| 2018-03-13 | AE18157 | ND |
| 2018-03-13 | AE18159 | ND |
| 2019-04-15 | AE62285 | ND |
| 2019-04-15 | AE62289 | ND |
| 2020-03-24 | AF04311 | ND |
| 2020-03-24 | AF04339 | ND |
| 2021-07-08 | AF61162 | ND |
| 2021-09-21 | AF70619 | ND |
| 2022-10-05 | AG16099 | ND |
| 2022-10-05 | AG16101 | ND |
| 2023-02-27 | AG30611 | ND |
| 2023-02-27 | AG30617 | ND |