Trichlorofluoromethane
Yak Co. - Crewport
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 | 3.21 ppb | 7 | 6 | ND - 5.72 ppb |
| 2019 | 2.73 ppb | 4 | 4 | 1.75 ppb - 3.32 ppb |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 3.97 ppb | 2 | 2 | 1.91 ppb - 6.02 ppb |
| 2022 | 3.98 ppb | 2 | 2 | 1.21 ppb - 6.74 ppb |
| 2023 | 4.58 ppb | 2 | 2 | 2.41 ppb - 6.74 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 |
|---|---|---|
| 2018-02-20 | 1.80 ppb | |
| 2018-04-09 | 4.20 ppb | |
| 2018-05-08 | 2.69 ppb | |
| 2018-08-14 | 3.40 ppb | |
| 2018-08-14 | ND | |
| 2018-11-13 | 5.72 ppb | |
| 2018-11-13 | 4.66 ppb | |
| 2019-03-18 | 3.32 ppb | |
| 2019-03-18 | 2.87 ppb | |
| 2019-05-20 | 1.75 ppb | |
| 2019-06-13 | 2.97 ppb | |
| 2021-05-10 | 4114924 | 6.02 ppb |
| 2021-05-10 | 4114925 | 1.91 ppb |
| 2022-05-09 | 4285652 | 1.21 ppb |
| 2022-05-09 | 4285645 | 6.74 ppb |
| 2023-05-15 | 4455758 | 2.41 ppb |
| 2023-05-15 | 4455759 | 6.74 ppb |