Trichlorofluoromethane
Palmer Water District No.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.
42
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 | 6 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 7 | 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 | Result |
|---|---|
| 2018-08-06 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2018-08-14 | ND |
| 2019-08-12 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-08-13 | ND |
| 2019-11-19 | ND |
| 2020-01-15 | ND |
| 2020-04-08 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-09-09 | ND |
| 2020-12-03 | ND |
| 2021-01-07 | ND |
| 2021-04-06 | ND |
| 2021-07-27 | ND |
| 2021-07-27 | ND |
| 2021-07-27 | ND |
| 2021-07-27 | ND |
| 2021-07-27 | ND |
| 2021-11-09 | ND |
| 2022-01-05 | ND |
| 2022-04-05 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2022-07-12 | ND |
| 2023-03-07 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-07-18 | ND |
| 2023-10-17 | ND |