Chloromethane
South Blount Utility District
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.
19
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|
| 2014-12-08 | ND |
| 2015-03-09 | ND |
| 2015-06-08 | ND |
| 2015-09-10 | ND |
| 2018-01-22 | ND |
| 2018-04-03 | ND |
| 2018-07-26 | ND |
| 2018-10-10 | ND |
| 2018-10-10 | ND |
| 2019-01-09 | ND |
| 2019-04-30 | ND |
| 2019-07-15 | ND |
| 2019-10-15 | ND |
| 2021-01-14 | ND |
| 2022-01-13 | ND |
| 2022-01-13 | ND |
| 2023-01-12 | ND |
| 2023-01-12 | ND |
| 2023-01-12 | ND |