Chloromethane
Washington Ridge C.c.
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.
7
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-06-06 | CA2910013_005_005-201806061000 | ND |
| 2018-07-18 | CA2910013_005_005-201807180930 | ND |
| 2018-11-27 | CA2910013_005_005-201811271000 | ND |
| 2019-03-27 | CA2910013_003_003-201903270845 | ND |
| 2019-03-27 | CA2910013_002_002-201903270830 | ND |
| 2019-03-27 | CA2910013_005_005-201903270900 | ND |
| 2020-06-16 | CA2910013_005_005-202006161330 | ND |