Chlorodifluoromethane
California Water Service - San Mateo
NOTE: California Water Service - San Mateo purchases water from San Francisco Regional Water System which is required to test for chlorodifluoromethane. Sample information shown below was taken by San Francisco Regional Water System.
Chlorodifluoromethane (Freon 22) 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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
NOTE: California Water Service - San Mateo purchases water from San Francisco Regional Water System which is required to test for chlorodifluoromethane. Sample information shown below was taken by San Francisco Regional Water System.
Date | Lab ID | Result |
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