Trichlorofluoromethane
Westchester County Water District #3
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.
21
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-09-24 | AU20759POCS | ND |
| 2019-11-12 | AV23848POCS | ND |
| 2020-04-28 | AW07856POCS | ND |
| 2020-11-09 | AW21633POCS | ND |
| 2020-12-15 | AW23891-POCS | ND |
| 2020-12-15 | AW23893-POCS | ND |
| 2021-04-06 | AX06359-POCS | ND |
| 2021-09-20 | AX19180-POCS-WD3 | ND |
| 2021-09-20 | AX19184-POCS-WD3 | ND |
| 2021-11-09 | AX22576-POCS | ND |
| 2021-11-09 | AX22573-POCS | ND |
| 2022-04-11 | AY05984-POCS | ND |
| 2022-10-24 | AY19127-POCS-WD3 | ND |
| 2022-10-24 | AY19125-POCS-WD3 | ND |
| 2022-11-01 | AY19681-POCS | ND |
| 2022-11-01 | AY19679-POCS | ND |
| 2023-04-25 | AZ07359--POCS | ND |
| 2023-10-19 | AZ19385-POCS-WD3 | ND |
| 2023-10-19 | AZ19384-POCS-WD3 | ND |
| 2023-11-01 | AZ20240-POCS | ND |
| 2023-11-01 | AZ20238-POCS | ND |