Chlorodifluoromethane
California Water Service (CWS) - Los Altos Suburban
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.
26
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 |
|---|---|---|---|---|
| 2013 | 0.383 ppb | 24 | 8 | ND - 2.90 ppb |
| 2014 | ND | 2 | 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
| Date | Lab ID | Result |
|---|---|---|
| 2013-06-05 | 201306060176AM | 0.720 ppb |
| 2013-06-05 | 201306060221AM | ND |
| 2013-06-05 | 201306060248AM | ND |
| 2013-06-10 | 201306110397AM | 0.500 ppb |
| 2013-06-10 | 201306110146AM | ND |
| 2013-06-10 | 201306110150AM | ND |
| 2013-06-10 | 201306110404AM | ND |
| 2013-06-12 | 201306130099AM | ND |
| 2013-06-18 | 201306190310AM | 2.90 ppb |
| 2013-06-18 | 201306190289AM | 0.740 ppb |
| 2013-06-18 | 201306190267AM | ND |
| 2013-09-11 | 201309120295AM | ND |
| 2013-12-03 | 201312040566AM | 0.840 ppb |
| 2013-12-04 | 201312050169AM | ND |
| 2013-12-05 | 201312060280AM | ND |
| 2013-12-09 | 201312100207AM | ND |
| 2013-12-09 | 201312100197AM | ND |
| 2013-12-10 | 201312110684AM | ND |
| 2013-12-10 | 201312110719AM | ND |
| 2013-12-11 | 201312120626AM | 0.550 ppb |
| 2013-12-16 | 201312170387AM | 2.20 ppb |
| 2013-12-16 | 201312170377AM | ND |
| 2013-12-17 | 201312180734AM | ND |
| 2013-12-18 | 201312200056AM | 0.740 ppb |
| 2014-03-05 | 201403060200AM | ND |
| 2014-06-04 | 201406050004AM | ND |