Trichlorofluoromethane
City of Alpine
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.
24
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-07-17 | Q1828669004 | ND |
| 2018-07-17 | Q1828669005 | ND |
| 2018-07-17 | Q1828669008 | ND |
| 2018-07-17 | Q1828669002 | ND |
| 2019-06-18 | Q1937877001 | ND |
| 2019-06-18 | Q1937877006 | ND |
| 2019-06-18 | Q1937877008 | ND |
| 2019-06-18 | Q1937877010 | ND |
| 2020-06-01 | Q2021525017 | ND |
| 2020-06-01 | Q2021525019 | ND |
| 2020-06-01 | Q2021525021 | ND |
| 2020-06-01 | Q2021525023 | ND |
| 2021-07-13 | Q2118334003 | ND |
| 2021-07-13 | Q2118334009 | ND |
| 2021-07-13 | Q2118334007 | ND |
| 2021-07-13 | Q2118334005 | ND |
| 2022-09-19 | Q2228089003 | ND |
| 2022-09-19 | Q2228089005 | ND |
| 2022-09-19 | Q2228089007 | ND |
| 2022-09-19 | Q2228089009 | ND |
| 2023-07-24 | Q2329551005 | ND |
| 2023-07-24 | Q2329551007 | ND |
| 2023-07-24 | Q2329551010 | ND |
| 2023-07-24 | Q2329551012 | ND |