Trichlorofluoromethane
West Sound Utility District #1
Trichlorofluoromethane (Freon 11) is a refrigerant, solvent and aerosol propellant banned in 2000 under the Montreal Protocol because of its ozone-depleting properties. Freons can cause heart, nervous system and liver damage.
12
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 | 3 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 9 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1,300 ppb
The EWG Health Guideline of 1,300 ppb for trichlorofluoromethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-23 | ND | |
| 2018-07-06 | ND | |
| 2018-10-09 | ND | |
| 2023-05-17 | 4468290 | ND |
| 2023-05-17 | 4468290 | ND |
| 2023-05-17 | 4468292 | ND |
| 2023-05-17 | 4468291 | ND |
| 2023-05-17 | 4468282 | ND |
| 2023-05-19 | 4468273 | ND |
| 2023-05-19 | 4468272 | ND |
| 2023-05-19 | 4468272 | ND |
| 2023-05-19 | 4468272 | ND |