Chloromethane
Mounds View
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.
14
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 | ND | 6 | 0 | ND |
| 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 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2013-06-06 | 1031167009 | ND |
| 2013-06-06 | 1031167003 | ND |
| 2013-06-06 | 1031167006 | ND |
| 2013-12-16 | 1063901009 | ND |
| 2013-12-16 | 1063901003 | ND |
| 2013-12-16 | 1063901006 | ND |
| 2019-05-13 | 19E0915-01 | ND |
| 2020-06-10 | 20F0839-01 | ND |
| 2022-08-17 | 22H1587-02 | ND |
| 2022-12-19 | 22L0910-01 | ND |
| 2023-02-10 | 23B0666-01 | ND |
| 2023-05-31 | 23E3051-01 | ND |
| 2023-07-20 | 23G1294-01 | ND |
| 2023-11-07 | 23K0381-01 | ND |