Trichlorofluoromethane
Walnut Grove Utilities
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.
17
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 10 | 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 |
|---|---|---|
| 2021-03-18 | 7364280001 | ND |
| 2021-03-18 | 7364282001V | ND |
| 2021-04-22 | 7368589001 | ND |
| 2021-09-07 | 7387721001A | ND |
| 2022-10-26 | FWJ0181-01 | ND |
| 2022-11-14 | FWJ0184 | ND |
| 2022-11-15 | FWJ0191 | ND |
| 2023-02-07 | FXB0070-01 | ND |
| 2023-02-07 | FXB0061-01 | ND |
| 2023-02-09 | FXB0077-01 | ND |
| 2023-04-04 | FXC0510 | ND |
| 2023-04-04 | FXC0539-01 | ND |
| 2023-04-05 | FXC0546-01 | ND |
| 2023-04-05 | FXC0561-01 | ND |
| 2023-04-06 | FXD0264-01 | ND |
| 2023-04-06 | FXC0504-01 | ND |
| 2023-08-02 | FXF0580-01 | ND |