Chloromethane
Palmer Water District No.1
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.
36
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 | 6 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 7 | 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 | Result |
|---|---|
| 2018-08-06 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2019-08-12 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-11-19 | ND |
| 2020-01-15 | ND |
| 2020-04-08 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-12-03 | ND |
| 2021-01-07 | ND |
| 2021-11-09 | ND |
| 2022-01-05 | ND |
| 2022-04-05 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2023-03-07 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-10-17 | ND |