Chloromethane
Burlington Department Public Works Water Div
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 |
|---|---|---|---|---|
| 2013 | ND | 3 | 0 | ND |
| 2014 | ND | 1 | 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 | 2 | 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 |
|---|---|---|
| 2013-05-30 | 722441-9006 | ND |
| 2013-08-21 | 739410-9592 | ND |
| 2013-11-19 | 759527-10309 | ND |
| 2014-02-26 | 772421-10816 | ND |
| 2018-01-11 | 1801-01056-001 | ND |
| 2019-01-10 | 1901-00952-001 | ND |
| 2020-02-06 | 2002-03057-001 | ND |
| 2021-01-08 | 2101-00749-001 | ND |
| 2021-11-10 | 2111-33848-001 | ND |
| 2022-01-20 | 2201-01645-001 | ND |
| 2023-01-09 | 2301-00785-001 | ND |