Chlorodifluoromethane
Blountville UD
NOTE: Blountville UD purchases water from Bristol Department Utilities which is required to test for chlorodifluoromethane. Sample information shown below was taken by Bristol Department Utilities.
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 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 |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
NOTE: Blountville UD purchases water from Bristol Department Utilities which is required to test for chlorodifluoromethane. Sample information shown below was taken by Bristol Department Utilities.
| Date | Result |
|---|---|
| 2014-06-18 | ND |
| 2014-09-10 | ND |
| 2014-12-11 | ND |
| 2015-03-17 | ND |