Trichlorofluoromethane
South Saint Paul
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.
13
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 | 4 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-01-03 | 18A0012-02 | ND |
| 2018-05-10 | 18E0892-01 | ND |
| 2018-08-24 | 18H2147-01 | ND |
| 2018-10-18 | 18J0909-01 | ND |
| 2019-01-14 | 19A0377-01 | ND |
| 2020-01-07 | 20A0142-01 | ND |
| 2020-08-13 | 20H0974-01 | ND |
| 2020-08-13 | 20H0974-02 | ND |
| 2020-08-13 | 20H0974-03 | ND |
| 2023-10-30 | 23J1666-02 | ND |
| 2023-10-30 | 23J1666-03 | ND |
| 2023-10-30 | 23J1666-04 | ND |
| 2023-10-30 | 23J1666-05 | ND |