Chlorodifluoromethane
Blackland Water Supply Corporation
NOTE: Blackland Water Supply Corporation purchases water from City of Rockwall which is required to test for chlorodifluoromethane. Sample information shown below was taken by City of Rockwall.
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.
4
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 | 4 | 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: Blackland Water Supply Corporation purchases water from City of Rockwall which is required to test for chlorodifluoromethane. Sample information shown below was taken by City of Rockwall.
| Date | Lab ID | Result |
|---|---|---|
| 2013-06-13 | Q1302538001 | ND |
| 2013-09-25 | Q1308241001 | ND |
| 2013-12-16 | Q1317765001 | ND |
| 2014-03-27 | Q1409938001 | ND |