Chloromethane
Utrwd Regional Water Treatment Plant
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 |
|---|---|---|
| 2018-09-13 | Q1836570001 | ND |
| 2018-09-25 | Q1838256005 | ND |
| 2019-09-26 | Q1969362002 | ND |
| 2019-09-27 | Q1970279005 | ND |
| 2020-08-18 | Q2032859002 | ND |
| 2020-08-18 | Q2032859004 | ND |
| 2021-09-27 | Q2126305003 | ND |
| 2021-09-27 | Q2126305005 | ND |
| 2022-09-15 | Q2227673003 | ND |
| 2022-09-15 | Q2227673005 | ND |
| 2023-08-02 | Q2331445001 | ND |
| 2023-08-02 | Q2331445003 | ND |