Isopropylbenzene
King County Water District No 90
NOTE: King County Water District No 90 purchases water from Seattle Public Utilities which is required to test for isopropylbenzene. Sample information shown below was taken by Seattle Public Utilities.
Isopropylbenzene, also called cumene, is an intermediate in industrial chemical production, and is also used as a thinner for paints and enamels. The National Toxicology Program classifies isopropylbenzene as a "reasonably anticipated" human carcinogen.
Samples
Samples exceeding legal limit (MCL)
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 | N/A | 0 | 0 | N/A |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
NOTE: King County Water District No 90 purchases water from Seattle Public Utilities which is required to test for isopropylbenzene. Sample information shown below was taken by Seattle Public Utilities.
| Date | Lab ID | Result |
|---|---|---|
| 2023-08-15 | 4542962 | ND |
| 2023-08-15 | 4542961 | ND |