Chloromethane
Elba Water Works
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.
17
Samples
0
Samples exceeding legal limit (MCL)
2
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 1.08 ppb | 5 | 1 | ND - 5.40 ppb |
| 2023 | 15.8 ppb | 5 | 1 | ND - 79.0 ppb |
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 |
|---|---|---|
| 2018-10-19 | 18100572-001A | ND |
| 2019-03-27 | 19030659-001A | ND |
| 2019-03-27 | 19030659-002A | ND |
| 2019-03-27 | 19030659-003A | ND |
| 2019-11-05 | 20128986001_IVOC | ND |
| 2020-11-17 | 20180408001_IVOC | ND |
| 2021-12-10 | 35683528001_IVOC | ND |
| 2022-03-29 | 35706621002_IVOC | ND |
| 2022-03-29 | 35706621001_IVOC | ND |
| 2022-09-22 | 35748613002_IVOC | 5.40 ppb |
| 2022-11-17 | 35760586001_IVOC | ND |
| 2022-12-15 | 35766914001_IVOC | ND |
| 2023-01-19 | 35773664001_IVOC | 79.0 ppb |
| 2023-04-06 | 35790837001_IVOC | ND |
| 2023-09-21 | 35829187001_IVOC | ND |
| 2023-10-19 | 35835674001_IVOC | ND |
| 2023-10-19 | 35835674002_IVOC | ND |