Chloromethane
Barre City Water System
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.
10
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 | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 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 | 1 | 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 |
|---|---|---|
| 2014-01-22 | A4A0076-01A | ND |
| 2014-04-07 | A4C0716-01A | ND |
| 2014-07-21 | A4G1008-01A | ND |
| 2014-10-08 | A4I2467-01A | ND |
| 2018-01-23 | 1801-01636-001 | ND |
| 2019-01-09 | 1901-00741-001 | ND |
| 2020-01-09 | 2001-00854-001 | ND |
| 2021-02-18 | 2102-04505-001 | ND |
| 2022-01-27 | 2201-02202-001 | ND |
| 2023-03-15 | 2303-06800-001 | ND |