Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WILSON TRAILER CO
4400 LEWIS BLVD, SIOUX CITY, IA, 51106
Parent company: WILSON TRAILER 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 | Manganese | Chromium | Copper | Nickel | Zinc (fume or dust) | Total (lbs) |
| 2024 | 36 | 13 | 9 | — | — | 60 |
| 2023 | 50 | 21 | 14 | — | — | 86 |
| 2022 | 47 | 20 | 15 | — | — | 83 |
| 2021 | 30 | — | — | 3 | — | 33 |
| 2020 | 27 | — | — | 3 | — | 30 |
| 2019 | 19 | — | — | — | — | 19 |
| 2018 | 15 | — | — | — | — | 15 |
| 2017 | 27 | — | — | — | — | 27 |
| 2016 | 32 | — | — | — | — | 32 |
| 2015 | 32 | — | — | — | — | 32 |
| 2014 | 32 | — | — | — | — | 32 |
| 2013 | 27 | — | — | — | — | 27 |
| 2012 | 27 | — | — | — | — | 27 |
| 2011 | 56 | 19 | 16 | 44 | — | 201 |
| 2010 | 61 | 18 | 16 | 13 | — | 160 |
| 2009 | 54 | 20 | 16 | 15 | — | 153 |
| 2008 | 58 | 21 | 13 | 15 | — | 166 |
| 1996 | 5 | 5 | 5 | 5 | 5 | 25 |
| 1995 | 255 | 255 | 255 | 255 | 255 | 1,275 |
| 1994 | 255 | 255 | 255 | 255 | 255 | 1,275 |
| 1993 | 255 | 255 | 255 | 255 | 255 | 1,275 |
▎ 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.