Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
7407 C E KING PKWY, HOUSTON, TX, 77044
Parent company: AZZ INC
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | 1,272 | — | 36 | 1,308 | ||
| 2023 | 1,255 | — | 2 | 1,257 | ||
| 2022 | 1,305 | — | 2 | 1,306 | ||
| 2021 | 1,194 | — | 2 | 1,196 | ||
| 2020 | 69 | — | 0 | 69 | ||
| 2019 | 260 | — | 0 | 260 | ||
| 2018 | 234 | — | 0 | 234 | ||
| 2017 | 242 | — | 0 | 242 | ||
| 2016 | 200 | — | 0 | 200 | ||
| 2015 | 217 | — | 0 | 218 | ||
| 2014 | 270 | — | 1 | 272 | ||
| 2013 | 217 | — | 0 | 218 | ||
| 2012 | 233 | — | 2 | 235 | ||
| 2011 | 226 | — | 1 | 227 | ||
| 2010 | 213 | — | 1 | 214 | ||
| 2009 | 130 | — | — | 130 | ||
| 2008 | 183 | — | — | 183 | ||
| 2007 | 151 | — | — | 151 | ||
| 2006 | 90 | — | — | 90 | ||
| 2005 | 93 | — | — | 93 | ||
| 2004 | 91 | — | — | 91 | ||
| 2003 | 83 | — | — | 83 | ||
| 2002 | 886 | — | — | 886 | ||
| 2001 | 604 | — | — | 604 | ||
| 2000 | 586 | — | — | 586 | ||
| 1999 | 561 | — | — | 561 | ||
| 1998 | 561 | — | — | 561 | ||
| 1997 | 1,538 | — | — | 1,538 | ||
| 1996 | 355 | — | — | 355 | ||
| 1995 | 355 | — | — | 355 | ||
| 1994 | 272 | 198 | — | 470 | ||
| 1993 | 266 | 250 | — | 516 | ||
| 1992 | 255 | 250 | — | 505 | ||
| 1991 | 255 | 250 | — | 505 | ||
| 1990 | 5 | 250 | — | 255 | ||
| 1989 | 250 | 250 | — | 500 | ||
▎ 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.