Chloromethane
C R C Water Supply Corporation
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 |
|---|---|---|
| 2018-12-13 | Q1851483002 | ND |
| 2018-12-13 | Q1851483005 | ND |
| 2019-03-13 | Q1910624001 | ND |
| 2019-03-13 | Q1910624011 | ND |
| 2020-03-18 | Q2011901002 | ND |
| 2020-03-18 | Q2011901004 | ND |
| 2021-03-11 | Q2106478004 | ND |
| 2021-03-11 | Q2106478006 | ND |
| 2022-06-20 | Q2216943003 | ND |
| 2022-06-20 | Q2216943005 | ND |
| 2023-05-11 | Q2318005002 | ND |
| 2023-05-11 | Q2318005004 | ND |