Chloromethane
Fcsa #39 A&b
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.
0
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 | 196 | 0 | ND |
| 2019 | ND | 146 | 0 | ND |
| 2020 | ND | 315 | 0 | ND |
| 2021 | ND | 160 | 0 | ND |
| 2022 | 0.00725 ppb | 167 | 2 | ND - 0.700 ppb |
| 2023 | 0.00149 ppb | 335 | 1 | ND - 0.500 ppb |
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 |
|---|