Trichlorofluoromethane
Angelica Village Public Water
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 | 5 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | 0.500 ppb | 1 | 1 | 0.500 ppb |
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 |
|---|---|---|
| 2018-01-23 | EHS1800003815POC | ND |
| 2018-04-10 | 1805085-001 | ND |
| 2018-04-10 | 1805085-002 | ND |
| 2018-07-12 | 1811302-001 | ND |
| 2018-10-10 | 1817655-001 | ND |
| 2019-01-08 | 1900347-001 | ND |
| 2019-06-05 | EHS1900029887POC | ND |
| 2020-07-13 | 2010566-001 | ND |
| 2021-09-23 | 2116229-001 | ND |
| 2022-05-17 | 2207014-001 | ND |
| 2022-07-12 | EHS2200032672-01P | ND |
| 2023-05-16 | EHS2300027426-01 | 0.500 ppb |