Dichlorodifluoromethane
Twin Buttes Water System
NOTE: Twin Buttes Water System purchases water from City of San Angelo which is required to test for dichlorodifluoromethane. Sample information shown below was taken by City of San Angelo.
Dichlorodifluoromethane (Freon-12) 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.
17
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 | 9 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
NOTE: Twin Buttes Water System purchases water from City of San Angelo which is required to test for dichlorodifluoromethane. Sample information shown below was taken by City of San Angelo.
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-29 | AC52069 | ND |
| 2014-04-29 | AC52067 | ND |
| 2014-04-29 | AC52065 | ND |
| 2014-04-29 | AC52063 | ND |
| 2014-04-29 | AC52037 | ND |
| 2014-04-29 | AC52059 | ND |
| 2014-04-29 | AC52039 | ND |
| 2014-04-29 | AC52071 | ND |
| 2014-08-11 | AC63095 | ND |
| 2015-08-12 | AD03968 | ND |
| 2016-02-17 | AD24323 | ND |
| 2016-05-17 | AD37069 | ND |
| 2016-07-20 | AD45007 | ND |
| 2016-11-09 | AD57412 | ND |
| 2017-05-09 | Q1719085002 | ND |
| 2018-02-28 | Q1808687007 | ND |
| 2019-05-07 | Q1920785002 | ND |