Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TELEDYNE INC, TELEDYNE COLUMBIA SUMMERILL
ARCH ST, CARNEGIE, PA, 15106
Parent company: ALLEGHENY TELEDYNE 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 | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Nickel | Copper | Manganese | Total (lbs) | |
| 1988 | 32,000 | 500 | 500 | 500 | 33,500 | |
| 1987 | 32,000 | 500 | — | — | 32,500 | |
▎ 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.