Isobutane
The Retreat Water Supply
Isobutane is a volatile hydrocarbon gas used as a refrigerant.
3
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 0.900 ppb | 1 | 1 | 0.900 ppb |
| 2022 | 2.00 ppb | 1 | 1 | 2.00 ppb |
| 2023 | 1.90 ppb | 1 | 1 | 1.90 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2021-09-30 | Q2126883001 | 0.900 ppb |
| 2022-09-26 | Q2228774007 | 2.00 ppb |
| 2023-07-10 | Q2326568001 | 1.90 ppb |