Dichlorodifluoromethane
Colby Waterworks
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.
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 |
|---|---|---|---|---|
| 2018 | 0.455 ppb | 2 | 2 | 0.310 ppb - 0.600 ppb |
| 2019 | 0.310 ppb | 2 | 2 | 0.310 ppb |
| 2020 | 0.390 ppb | 1 | 1 | 0.390 ppb |
| 2021 | 0.380 ppb | 1 | 1 | 0.380 ppb |
| 2022 | 0.580 ppb | 2 | 2 | 0.460 ppb - 0.700 ppb |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-04 | 1058548 | 0.600 ppb |
| 2018-09-11 | 1079495 | 0.310 ppb |
| 2019-09-09 | 1146072 | 0.310 ppb |
| 2019-09-18 | 1149295 | 0.310 ppb |
| 2020-05-19 | 1189192 | 0.390 ppb |
| 2021-04-13 | 1248556 | 0.380 ppb |
| 2022-05-10 | 1312145 | 0.460 ppb |
| 2022-05-10 | 1312141 | 0.700 ppb |