Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
3750 KIRTLAND RD, CENTRAL POINT, OR, 97502
Parent company: MDU RESOURCES GROUP INC
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Polycyclic aromatic compounds | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Benzo[g,h,i]perylene | Total |
|---|---|---|---|---|
| 2024 | 1 | — | — | 1 |
| 2023 | 0 | — | — | 0 |
| 2022 | 1 | — | — | 1 |
| 2021 | 0 | — | — | 0 |
| 2020 | 0 | — | — | 0 |
| 2019 | 0 | — | — | 0 |
| 2018 | 1 | — | 0 | 1 |
| 2017 | 0 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 1 |
| 2015 | 0 | — | — | 0 |
| 2014 | 1 | — | — | 1 |
| 2013 | 0 | — | — | 0 |
| 2012 | 0 | — | — | 0 |
| 2011 | 0 | — | — | 0 |
| 2010 | 1,451 | — | — | 1,451 |
| 2009 | 2,092 | — | — | 2,092 |
| 2008 | 1,664 | 404 | — | 2,068 |
| 2007 | 1,388 | 848 | — | 2,236 |