Chloromethane
Austin Utilities
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.
20
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 | 8 | 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 | 7 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 2 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-04-14 | 2001916009 | ND |
| 2014-04-14 | 2001916012 | ND |
| 2014-04-14 | 2001916003 | ND |
| 2014-04-14 | 2001916006 | ND |
| 2014-10-27 | 2036810001 | ND |
| 2014-10-27 | 2036810004 | ND |
| 2014-10-27 | 2036810009 | ND |
| 2014-10-27 | 2036810012 | ND |
| 2018-12-27 | 18L0844-01 | ND |
| 2019-09-23 | 19I1330-01 | ND |
| 2019-11-20 | 19K0944-07 | ND |
| 2019-11-20 | 19K0944-06 | ND |
| 2019-11-20 | 19K0944-05 | ND |
| 2019-11-20 | 19K0944-03 | ND |
| 2019-11-20 | 19K0944-02 | ND |
| 2019-11-20 | 19K0944-01 | ND |
| 2020-03-10 | 20C0558-01 | ND |
| 2020-06-18 | 20F1621-01 | ND |
| 2022-02-16 | 22B1129-01 | ND |
| 2022-06-08 | 22F0579-01 | ND |