Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ZALK STEEL & SUPPLY CO
446 SAINT ANTHONY BLVD, MINNEAPOLIS, MN, 55418
Parent company: AZZ 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 | 752 | — | 0 | 752 | ||
| 2023 | 1,252 | — | 0 | 1,252 | ||
| 2022 | 969 | — | 0 | 969 | ||
| 2021 | 1,094 | — | 0 | 1,094 | ||
| 2020 | 1,007 | — | 0 | 1,007 | ||
| 2019 | 1,199 | — | 0 | 1,199 | ||
| 2018 | 1,256 | — | 0 | 1,256 | ||
| 2017 | 1,185 | — | 0 | 1,185 | ||
| 2016 | 1,219 | — | 0 | 1,219 | ||
| 2015 | 1,193 | — | 4 | 1,197 | ||
| 2014 | 1,242 | — | 5 | 1,247 | ||
| 2013 | 3,127 | — | 21 | 3,148 | ||
| 2012 | 2,980 | — | 21 | 3,001 | ||
| 2011 | 2,562 | — | 19 | 2,581 | ||
| 2010 | 2,610 | — | 19 | 2,629 | ||
| 2009 | 2,717 | — | 19 | 2,736 | ||
| 2008 | 3,048 | — | 22 | 3,070 | ||
| 2007 | 3,803 | — | 30 | 3,833 | ||
| 2006 | 2,952 | — | 22 | 2,974 | ||
| 2005 | 2,752 | — | 22 | 2,774 | ||
| 2004 | 2,727 | — | 23 | 2,750 | ||
| 2003 | 2,247 | — | 13 | 2,260 | ||
| 2002 | 1,712 | — | 13 | 1,725 | ||
| 2001 | 1,661 | — | 13 | 1,674 | ||
| 2000 | 1,878 | — | — | 1,878 | ||
| 1999 | 617 | — | — | 617 | ||
| 1998 | 551 | — | — | 551 | ||
| 1997 | 559 | — | — | 559 | ||
| 1996 | 536 | — | — | 536 | ||
| 1995 | 413 | — | — | 413 | ||
| 1994 | 465 | 700 | — | 1,165 | ||
| 1993 | 500 | 700 | — | 1,200 | ||
| 1992 | 250 | 700 | — | 950 | ||
| 1991 | 250 | 750 | — | 1,000 | ||
▎ 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.