Chloromethane
Mankato
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.
11
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 |
|---|---|---|---|---|
| 2015 | ND | 4 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 2 | 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 | Lab ID | Result |
|---|---|---|
| 2015-02-24 | 2056362003 | ND |
| 2015-05-28 | 2073672003 | ND |
| 2015-08-18 | 2090252003 | ND |
| 2015-11-17 | 2109068003 | ND |
| 2018-10-17 | 18J0914-01 | ND |
| 2019-09-16 | 19I0904-01 | ND |
| 2020-06-08 | 20F0689-01 | ND |
| 2021-12-08 | 21L0413-01 | ND |
| 2022-10-26 | 22J1252-01 | ND |
| 2023-07-19 | 23G1295-02 | ND |
| 2023-10-31 | 23K0053-01 | ND |