Trichlorofluoromethane
Nocona Hills Water Supply Corporation
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 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 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 |
|---|---|---|
| 2018-12-10 | Q1850817001 | ND |
| 2018-12-10 | Q1850817004 | ND |
| 2019-02-20 | Q1907488002 | ND |
| 2019-02-20 | Q1907488007 | ND |
| 2020-09-21 | Q2037478001 | ND |
| 2020-09-21 | Q2037478003 | ND |
| 2021-06-21 | Q2116016005 | ND |
| 2021-06-21 | Q2116016007 | ND |
| 2022-05-10 | Q2213917001 | ND |
| 2022-05-10 | Q2213917003 | ND |
| 2023-07-05 | Q2326100006 | ND |
| 2023-07-05 | Q2326100008 | ND |
| 2023-10-03 | Q2342315001 | ND |