Trichlorofluoromethane
Quincy Water Department City Of
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 7 | 0 | ND |
| 2023 | ND | 3 | 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 |
|---|---|---|
| 2019-10-02 | ND | |
| 2021-06-16 | 4132530 | ND |
| 2021-06-16 | 4131878 | ND |
| 2022-03-04 | 4258466 | ND |
| 2022-03-22 | 4258506 | ND |
| 2022-08-16 | 4338187 | ND |
| 2022-08-16 | 4338185 | ND |
| 2022-09-13 | 4344891 | ND |
| 2022-10-06 | 4356345 | ND |
| 2022-10-06 | 4356344 | ND |
| 2023-03-09 | 4427806 | ND |
| 2023-09-26 | 4526082 | ND |
| 2023-10-03 | 4526155 | ND |