Dichlorodifluoromethane
City of Redmond Water System
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.
9
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-07-22 | 11484 | ND |
| 2016-07-11 | ND | |
| 2016-07-11 | ND | |
| 2016-07-11 | ND | |
| 2017-11-29 | ND | |
| 2019-07-09 | ND | |
| 2019-07-09 | ND | |
| 2019-07-09 | ND | |
| 2019-07-09 | ND |