Isobutane
Northwest Harris County Municipal Utility District 23
Isobutane is a volatile hydrocarbon gas used as a refrigerant.
5
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 | N/A | 0 | 0 | N/A |
| 2015 | 15.5 ppb | 2 | 2 | 13.1 ppb - 17.9 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 17.6 ppb | 1 | 1 | 17.6 ppb |
| 2018 | 8.00 ppb | 1 | 1 | 8.00 ppb |
| 2019 | 19.0 ppb | 1 | 1 | 19.0 ppb |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-02-12 | AC80441 | 17.9 ppb |
| 2015-09-03 | AD05660 | 13.1 ppb |
| 2017-04-12 | AD79463 | 17.6 ppb |
| 2018-05-17 | AE26815 | 8.00 ppb |
| 2019-01-31 | AE52467 | 19.0 ppb |