Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
4701 N US HWY 87, BIG SPRING, TX, 79720
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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead compounds | Total (lbs) | ||
| 2016 | 167 | — | 0 | 167 | ||
| 2015 | 199 | — | 2 | 201 | ||
| 2014 | 374 | — | 0 | 374 | ||
| 2013 | 701 | 854 | 0 | 1,555 | ||
▎ 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.