Trichlorofluoromethane
East Pasadena Water Company
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.
16
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 | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-03-19 | CA1910020_012_012-201803190855 | ND |
| 2018-03-19 | CA1910020_005_005-201803190940 | ND |
| 2018-04-11 | CA1910020_012_012-201804111035 | ND |
| 2018-07-12 | CA1910020_005_005-201807121035 | ND |
| 2019-04-03 | CA1910020_012_012-201904031000 | ND |
| 2019-07-29 | CA1910020_005_005-201907291225 | ND |
| 2020-04-02 | CA1910020_012_012-202004021030 | ND |
| 2020-07-09 | CA1910020_005_005-202007091040 | ND |
| 2021-03-08 | CA1910020_005_005-202103080910 | ND |
| 2021-03-08 | CA1910020_012_012-202103080845 | ND |
| 2021-04-12 | CA1910020_012_012-202104121010 | ND |
| 2021-07-13 | CA1910020_005_005-202107131115 | ND |
| 2022-04-20 | CA1910020_012_012-202204201155 | ND |
| 2022-08-09 | CA1910020_005_005-202208091125 | ND |
| 2023-05-10 | CA1910020_012_012-202305101055 | ND |
| 2023-08-16 | CA1910020_005_005-202308161040 | ND |