Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COOKSON MATTHEY CERAMICS
1397 KING RD, WEST CHESTER, PA, 193801467
Parent company: NA
Carcinogen
PBT
— 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 | Trichloroethylene | Cadmium compounds | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Zinc compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) |
| 1995 | — | 500 | — | — | — | 500 |
| 1994 | — | 500 | — | — | — | 510 |
| 1993 | — | 1,000 | 500 | 500 | 500 | 4,770 |
| 1992 | 13,600 | — | — | — | — | 13,600 |
| 1991 | 9,050 | 1,650 | 1,650 | 1,850 | 1,000 | 16,200 |
| 1990 | 16,826 | 500 | 500 | — | — | 17,826 |
| 1989 | 12,250 | 500 | — | — | — | 12,750 |
| 1988 | — | — | — | — | — | 1,500 |
▎ 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.