Trichlorofluoromethane
Stanley Lake Municipal Utility District
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.
23
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 6 | 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 |
|---|---|---|
| 2018-02-20 | AE14459 | ND |
| 2018-02-20 | AE14433 | ND |
| 2019-03-04 | AE56885 | ND |
| 2019-03-04 | AE56889 | ND |
| 2020-08-11 | AF22868 | ND |
| 2020-08-11 | AF22870 | ND |
| 2020-08-11 | AF22872 | ND |
| 2020-11-20 | AF35494 | ND |
| 2021-01-14 | AF39546 | ND |
| 2021-01-14 | AF39560 | ND |
| 2021-01-14 | AF39570 | ND |
| 2021-04-14 | AF50172 | ND |
| 2022-08-04 | AG07883 | ND |
| 2022-08-04 | AG07885 | ND |
| 2022-08-04 | AG07889 | ND |
| 2022-08-04 | AG07891 | ND |
| 2022-10-18 | AG17399 | ND |
| 2022-10-18 | AG17401 | ND |
| 2023-01-25 | AG26238 | ND |
| 2023-01-25 | AG26240 | ND |
| 2023-01-25 | AG26244 | ND |
| 2023-01-25 | AG26258 | ND |
| 2023-04-10 | AG36106 | ND |