Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COOPER INDUSTRIES INC AJAX-SUPERIOR DIV
19 N CENTER ST, CORRY, PA, 16407
Parent company: COOPER IND INC
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 | Chromium | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Manganese | Aluminum oxide (fibrous forms) | Total (lbs) | |
| 1991 | 115,205 | — | 255 | — | 115,460 | |
| 1990 | — | — | 5 | — | 5 | |
| 1989 | — | 250 | 250 | — | 500 | |
| 1988 | — | 250 | — | 250 | 500 | |
| 1987 | — | 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.