Dichlorodifluoromethane
Old Marbach School Water Supply Corporation
Dichlorodifluoromethane (Freon-12) 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.
12
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-28 | AC40440 | ND |
| 2015-08-06 | AD03002 | ND |
| 2015-08-06 | AD02954 | ND |
| 2016-02-09 | AD22766 | ND |
| 2016-02-09 | AD22774 | ND |
| 2016-06-08 | AD39820 | ND |
| 2017-11-06 | AE03663 | ND |
| 2017-12-12 | AE07541 | ND |
| 2018-02-14 | AE13778 | ND |
| 2018-02-14 | AE13790 | ND |
| 2019-12-09 | AE91909 | ND |
| 2019-12-09 | AE91911 | ND |