Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WEYERHAEUSER NR CO ZWOLLE DIV
2792 OBRIE ST, ZWOLLE, LA, 71486
Parent company: WEYERHAEUSER CO
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) 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.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | Methanol | Lead compounds | Arsenic compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Copper compounds | Total (lbs) |
| 2024 | 20,126 | — | — | — | — | 20,126 |
| 2023 | 20,231 | — | — | — | — | 20,231 |
| 2022 | 20,631 | — | — | — | — | 20,631 |
| 2021 | 21,041 | — | — | — | — | 21,041 |
| 2020 | 22,162 | — | — | — | — | 22,162 |
| 2019 | 24,541 | — | — | — | — | 24,541 |
| 2018 | 24,744 | — | — | — | — | 24,744 |
| 2017 | 24,509 | — | — | — | — | 24,509 |
| 2016 | 23,691 | — | — | — | — | 23,691 |
| 2015 | 22,399 | — | — | — | — | 22,399 |
| 2014 | 25,702 | — | — | — | — | 25,702 |
| 2013 | 24,582 | — | — | — | — | 24,582 |
| 2012 | 23,166 | — | — | — | — | 23,166 |
| 2008 | 25,672 | — | — | — | — | 25,672 |
| 2007 | 28,850 | — | — | — | — | 28,850 |
| 2006 | 36,052 | 30 | — | — | — | 36,082 |
| 2005 | 39,340 | 32 | — | — | — | 39,372 |
| 2004 | 37,866 | 30 | — | — | — | 37,896 |
| 2003 | 40,321 | 28 | — | — | — | 40,349 |
| 2002 | 38,849 | 30 | — | — | — | 38,879 |
| 2001 | 20,596 | 1 | — | — | — | 20,597 |
| 2000 | 30,538 | — | — | — | — | 30,538 |
| 1992 | — | — | 10 | 10 | 10 | 30 |
| 1991 | — | — | 1 | 1 | 1 | 3 |
| 1990 | — | — | 5 | 5 | 5 | 15 |
| 1987 | — | — | — | — | — | 11 |
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.