Chloromethane
Kooskooskie Cabin Owners Inc.
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.
6
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 | 0.690 ppb | 1 | 1 | 0.690 ppb |
| 2019 | 0.585 ppb | 2 | 1 | ND - 1.17 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-04-03 | 0.690 ppb | |
| 2019-04-03 | ND | |
| 2019-09-10 | 1.17 ppb | |
| 2021-04-05 | 4092805 | ND |
| 2022-04-04 | 4271920 | ND |
| 2022-05-04 | 4276005 | ND |