Chloromethane
Crystal Farms Water Supply Corporation
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.
13
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 |
|---|---|---|---|---|
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 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 |
|---|---|---|
| 2018-06-20 | Q1824485006 | ND |
| 2019-07-25 | Q1947858003 | ND |
| 2019-10-31 | Q1974664007 | ND |
| 2020-03-12 | Q2010438003 | ND |
| 2020-03-12 | Q2010438005 | ND |
| 2020-05-21 | Q2020365003 | ND |
| 2020-08-31 | Q2034597004 | ND |
| 2021-05-20 | Q2113262004 | ND |
| 2021-05-20 | Q2113262006 | ND |
| 2022-02-22 | Q2206222003 | ND |
| 2022-02-22 | Q2206222005 | ND |
| 2023-09-07 | Q2338597004 | ND |
| 2023-09-07 | Q2338597006 | ND |