Chlorodifluoromethane
Sioux City Water Supply
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.
8
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 | 2 | 0 | ND |
| 2015 | 0.0329 ppb | 6 | 2 | ND - 0.110 ppb |
| 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 |
|---|---|---|
| 2014-12-02 | 204602 | ND |
| 2014-12-22 | 207515 | ND |
| 2015-03-30 | 225695 | ND |
| 2015-03-30 | 225694 | 0.110 ppb |
| 2015-06-01 | 249354 | ND |
| 2015-06-01 | 249355 | 0.0872 ppb |
| 2015-09-29 | 299759 | ND |
| 2015-09-29 | 299756 | ND |