Chlorodifluoromethane
Helena 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.
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 |
|---|---|---|---|---|
| 2013 | ND | 5 | 0 | ND |
| 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
| Date | Lab ID | Result |
|---|---|---|
| 2013-07-08 | 729681-9301 | ND |
| 2013-07-08 | 729691-9301 | ND |
| 2013-07-08 | 729689-9301 | ND |
| 2013-10-02 | 750328-9933 | ND |
| 2013-10-02 | 750326-9933 | ND |
| 2014-01-16 | 766870-10584 | ND |
| 2014-01-16 | 766872-10584 | ND |
| 2014-04-16 | 781016-11187 | ND |
| 2014-04-16 | 781014-11187 | ND |