Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WILLIAMSBURG MANUFACTURING
408 MAPLEWOOD AVE, WILLIAMSBURG, IA, 52361
Parent company: MAGNA US HOLDING INC
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 | Aluminum (fume or dust) | Manganese | Chromium | Copper | Nickel | Total (lbs) |
| 2024 | — | 3 | — | — | — | 3 |
| 2023 | — | 7 | — | — | — | 8 |
| 2022 | — | 26 | — | — | — | 26 |
| 2021 | — | 49 | — | — | — | 49 |
| 2020 | — | 64 | — | — | — | 64 |
| 2019 | — | 66 | — | — | — | 66 |
| 2018 | — | — | — | — | 0 | 0 |
| 2016 | — | 132 | — | — | 0 | 132 |
| 2015 | — | 121 | — | — | 0 | 122 |
| 2014 | — | 132 | 0 | — | 0 | 132 |
| 2013 | — | 150 | 1 | 7 | 1 | 159 |
| 2012 | — | 227 | 1 | 7 | 1 | 235 |
| 2011 | — | 19 | — | — | 0 | 19 |
| 2010 | — | 58 | — | — | — | 58 |
| 2009 | — | 85 | — | — | — | 85 |
| 2008 | — | 209 | — | 5 | 1 | 215 |
| 2007 | — | 189 | — | 6 | 1 | 195 |
| 2006 | — | 147 | — | 45 | 3 | 196 |
| 2002 | 9,876 | 383 | — | — | 0 | 10,259 |
| 2001 | 9,132 | 1,325 | — | — | 22 | 10,479 |
| 2000 | 7,750 | 250 | — | — | — | 8,000 |
| 1999 | 4,572 | 2,738 | 230 | 11 | 47 | 7,674 |
| 1993 | — | 46 | — | — | — | 46 |
| 1992 | — | 46 | — | — | — | 46 |
| 1990 | — | 22 | — | — | — | 22 |
| 1989 | — | 10 | — | — | — | 10 |
▎ 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.