Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TRINITY INDUSTRIES INC PLANT #21
601 HANSEN AVE, BUTLER, PA, 16001
Parent company: TRINITY INDUSTRIES INC
Carcinogen
— 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) | Methyl ethyl ketone | Ethylbenzene | Manganese | Total (lbs) | |
| 2001 | — | — | — | 448 | 448 | |
| 1991 | 19,000 | — | — | — | 19,000 | |
| 1990 | 16,750 | 24,900 | — | — | 41,650 | |
| 1989 | 115,081 | 62,490 | 12,142 | — | 189,713 | |
| 1988 | 90,292 | — | — | — | 90,292 | |
▎ 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.