Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
IMPERIAL GROUP MANUFACTURING
206 MAURIN RD, CHEHALIS, WA, 98532
Parent company: IRONFORM
Carcinogen
— 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 | Chromium | Manganese | Nickel | Total |
|---|---|---|---|---|
| 2024 | 3 | 2 | 1 | 6 |
| 2023 | 3 | 2 | 1 | 6 |
| 2022 | 3 | 2 | 1 | 6 |
| 2021 | 2 | 2 | 1 | 5 |
| 2020 | 2 | 1 | 1 | 4 |
| 2019 | 0 | — | — | 0 |
| 2018 | 0 | — | — | 0 |
| 2017 | 0 | — | — | 0 |
| 2016 | 0 | — | — | 0 |
| 2015 | 0 | — | — | 0 |
| 2014 | 3 | — | — | 3 |
| 2013 | 0 | — | — | 0 |
| 2012 | 0 | — | — | 0 |
| 2011 | 3 | — | — | 3 |
| 2010 | 3 | — | — | 3 |
| 2009 | 2 | — | — | 2 |
| 2008 | 2 | — | — | 2 |
| 2007 | 216 | — | — | 216 |
| 2006 | 3,784 | — | — | 3,784 |
| 2005 | 3,784 | — | — | 3,784 |
| 2004 | 3,784 | — | — | 3,784 |