Chloromethane
Shady Harbor Fire District
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 | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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 |
|---|---|---|
| 2018-04-24 | 1801832-03_TO12 | ND |
| 2018-04-24 | 1801832-01_TO12 | ND |
| 2018-04-24 | 1801832-04_TO12 | ND |
| 2018-04-24 | 1801832-02_TO12 | ND |
| 2019-04-26 | 1901821-03_TO12 | ND |
| 2020-04-29 | 2001792-04_TO12 | ND |
| 2021-04-12 | 2101744-01_TO12 | ND |
| 2021-04-12 | 2101744-02_TO12 | ND |
| 2021-04-12 | 2101744-03_TO12 | ND |
| 2021-04-12 | 2101744-04_TO12 | ND |
| 2022-04-27 | 2201737-04_TO12 | ND |
| 2023-04-25 | 2301874-04_TO12 | ND |