Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
GROSCHOPP INC.
420 15TH ST NE, SIOUX CENTER, IA, 51250
Parent company: NA
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 | Xylene (mixed isomers) | Copper | Styrene | Nickel | Chromium | Total (lbs) |
| 2024 | — | 15 | — | — | — | 15 |
| 2023 | — | 23 | — | — | — | 23 |
| 2022 | — | 23 | — | — | — | 23 |
| 2021 | — | 22 | — | — | — | 22 |
| 2020 | — | 22 | — | 7 | 6 | 35 |
| 2019 | — | 21 | — | 7 | 6 | 35 |
| 2018 | — | 24 | — | 6 | 5 | 34 |
| 2017 | — | 22 | — | 6 | 5 | 33 |
| 2016 | — | 42 | — | 4 | 4 | 51 |
| 2015 | — | 25 | — | 5 | 4 | 34 |
| 2014 | — | 25 | — | 6 | 5 | 36 |
| 2013 | — | 22 | — | 5 | 4 | 31 |
| 2012 | — | 27 | — | — | — | 27 |
| 2011 | — | 2,380 | — | — | — | 2,380 |
| 2010 | — | 3,920 | — | — | — | 3,920 |
| 2009 | — | 3,920 | — | — | — | 3,920 |
| 2008 | — | 8,060 | 12,166 | — | — | 20,226 |
| 2007 | — | 9,180 | — | — | — | 9,180 |
| 2006 | 30,077 | 10,866 | — | — | — | 40,943 |
| 2005 | 29,215 | — | — | — | — | 29,215 |
| 2004 | 32,407 | — | — | — | — | 32,407 |
| 2003 | 28,147 | — | — | — | — | 28,147 |
| 2002 | 26,793 | — | — | — | — | 26,793 |
| 2001 | 776 | — | — | — | — | 776 |
| 2000 | 31,888 | — | — | — | — | 31,888 |
| 1999 | 26,924 | — | — | — | — | 26,924 |
| 1998 | 23,595 | — | — | — | — | 23,595 |
| 1997 | 21,884 | — | — | — | — | 21,884 |
| 1996 | 18,112 | — | — | — | — | 18,112 |
| 1995 | 13,933 | — | — | — | — | 13,933 |
| 1994 | 22,857 | — | — | — | — | 22,857 |
| 1993 | 18,410 | — | — | — | — | 18,410 |
| 1992 | 19,072 | — | — | — | — | 19,072 |
| 1991 | 17,740 | — | — | — | — | 17,740 |
| 1990 | 19,546 | — | — | — | — | 19,546 |
| 1989 | 16,614 | — | — | — | — | 16,614 |
| 1988 | 24,891 | — | — | — | — | 24,891 |
▎ 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.