Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
STATELINE COMPLEX
15071 56TH STREET NW, WILLISTON, ND, 58801
Parent company: ONEOK INC.
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | n-Hexane | Toluene | Benzene | Methanol | Total |
|---|---|---|---|---|---|
| 2024 | 4,924 | 527 | 100 | 1 | 5,552 |
| 2023 | 4,852 | — | 14 | — | 4,866 |
| 2022 | 4,826 | — | 88 | 4 | 4,918 |