Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
STRUCTURAL COMPOSITES IND
325 ENTERPRISE PL, POMONA, CA, 917683245
Parent company: HARSCO CORP
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 | Acetone | Methyl isobutyl ketone | Phosphoric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1995 | — | — | 5 | 5 | 10 | |
| 1993 | 12,200 | — | — | — | 12,200 | |
| 1992 | 32,798 | 14,449 | 5 | — | 47,252 | |
| 1991 | 13,394 | — | 5 | — | 13,399 | |
| 1990 | 26,400 | — | — | — | 26,400 | |
▎ 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.