Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
VALMONT COATINGS INC DBA SIOUXLAND GALVANIZING CORP.
2301 BRIDGEPORT DR, SIOUX CITY, IA, 51111
Parent company: VALMONT INDUSTRIES 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 | Zinc compounds | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead | Total (lbs) | ||
| 2024 | 304 | — | — | 304 | ||
| 2023 | 275 | — | — | 275 | ||
| 2022 | 200 | — | — | 200 | ||
| 2021 | 314 | — | 0 | 314 | ||
| 2020 | 338 | — | 0 | 338 | ||
| 2019 | 700 | — | 0 | 700 | ||
| 2018 | 417 | — | 1 | 418 | ||
| 2017 | 378 | — | — | 378 | ||
| 2016 | 707 | — | 6 | 713 | ||
| 2015 | 809 | — | 5 | 814 | ||
| 2014 | 890 | — | 20 | 910 | ||
| 2013 | 667 | — | 25 | 692 | ||
| 2012 | 716 | — | 26 | 742 | ||
| 2011 | 615 | — | 23 | 638 | ||
| 2010 | 620 | — | 21 | 641 | ||
| 2009 | 540 | — | 19 | 559 | ||
| 2008 | 1,360 | — | 26 | 1,386 | ||
| 2007 | 1,480 | — | 26 | 1,506 | ||
| 2006 | 810 | — | 30 | 840 | ||
| 2005 | 1,320 | — | 32 | 1,352 | ||
| 2004 | 1,130 | — | 29 | 1,159 | ||
| 2003 | 840 | — | 28 | 868 | ||
| 2002 | 930 | — | 29 | 959 | ||
| 2001 | 1,150 | — | 36 | 1,186 | ||
| 2000 | 790 | — | — | 790 | ||
| 1999 | 1,963 | — | — | 1,963 | ||
| 1998 | 482 | — | — | 482 | ||
| 1997 | 913 | — | — | 913 | ||
| 1996 | 926 | — | — | 926 | ||
| 1995 | — | 746 | — | 746 | ||
| 1994 | 740 | 750 | — | 1,490 | ||
| 1993 | 598 | 728 | — | 1,326 | ||
| 1992 | 560 | 724 | — | 1,284 | ||
| 1991 | 436 | 750 | — | 1,186 | ||
| 1990 | 444 | 564 | — | 1,008 | ||
▎ 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.