Chloromethane
Groveland Water Department
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.
20
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|
| 2020-02-05 | ND |
| 2020-04-01 | ND |
| 2020-04-01 | ND |
| 2020-07-15 | ND |
| 2020-10-05 | ND |
| 2021-01-20 | ND |
| 2021-04-05 | ND |
| 2021-04-05 | ND |
| 2021-07-21 | ND |
| 2021-10-18 | ND |
| 2022-02-02 | ND |
| 2022-04-04 | ND |
| 2022-04-04 | ND |
| 2022-07-20 | ND |
| 2022-11-02 | ND |
| 2023-01-18 | ND |
| 2023-05-03 | ND |
| 2023-05-03 | ND |
| 2023-07-19 | ND |
| 2023-10-04 | ND |