Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NATIONAL ALUMINUM
NOBLE INDUSTRIAL PARK RTE 4, CALDWELL, OH, 43724
Parent company: NATIONAL ALUMINUM CORP
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 | Methyl ethyl ketone | Toluene | Acetone | Total (lbs) | ||
| 1988 | 28,688 | 20,470 | 15,467 | 64,625 | ||
| 1987 | 195,113 | 137,602 | — | 332,715 | ||
▎ 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.