Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
KNIFE RIVER NORTH CENTRAL WILLISTON
5654 134TH AVE, WILLISTON, ND, 58801
Parent company: MDU RESOURCES GROUP INC
Carcinogen
PBT
— 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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Polycyclic aromatic compounds | Total |
|---|---|---|---|
| 2017 | — | 0 | 0 |
| 2016 | — | 0 | 0 |
| 2015 | 206 | 0 | 206 |
| 2014 | 564 | 0 | 564 |
| 2013 | 426 | 0 | 426 |