Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COOPER POWER SYSTEM
1510 PERSHING RD, ZANESVILLE, OH, 43701
Parent company: COOPER INDUSTRIES 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 | 1,1,1-Trichloroethane | Xylene (mixed isomers) | n-Butyl alcohol | Total (lbs) | ||
| 1991 | 12,188 | 9,301 | — | 21,489 | ||
| 1990 | 20,000 | 8,000 | — | 28,000 | ||
| 1989 | 29,000 | 13,000 | 11,000 | 53,000 | ||
| 1988 | 47,000 | — | — | 47,000 | ||
▎ 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.