Chlorodifluoromethane
Mallory Valley Utility Distric
NOTE: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for chlorodifluoromethane. Sample information shown below was taken by Harpeth Valley Utility District.
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 |
---|---|---|---|---|
2013 | ND | 4 | 0 | ND |
2014 | ND | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
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: Mallory Valley Utility Distric purchases water from Harpeth Valley Utility District which is required to test for chlorodifluoromethane. Sample information shown below was taken by Harpeth Valley Utility District.
Date | Result |
---|---|
2014-05-15 | ND |
2014-08-14 | ND |
2014-11-17 | ND |
2015-02-11 | ND |