Chlorodifluoromethane
Johnston Municipal Water Supply
NOTE: Johnston Municipal Water Supply purchases water from Des Moines Water Works which is required to test for chlorodifluoromethane. Sample information shown below was taken by Des Moines Water Works.
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 |
---|---|---|---|---|
2014 | ND | 6 | 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: Johnston Municipal Water Supply purchases water from Des Moines Water Works which is required to test for chlorodifluoromethane. Sample information shown below was taken by Des Moines Water Works.
Date | Lab ID | Result |
---|---|---|
2014-07-30 | 180955 | ND |
2014-07-30 | 180953 | ND |
2014-07-30 | 180959 | ND |
2014-10-08 | 196216 | ND |
2014-10-08 | 196222 | ND |
2014-10-08 | 196219 | ND |
2015-01-26 | 211478 | ND |
2015-01-26 | 211497 | ND |
2015-01-26 | 211477 | ND |
2015-04-01 | 226435 | ND |
2015-04-01 | 226530 | ND |
2015-04-01 | 226431 | ND |