Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TRANSWALL
1220 WILSON DR, WEST CHESTER, PA, 193804231
Parent company: NA
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 | Toluene | 1,1,1-Trichloroethane | Xylene (mixed isomers) | n-Butyl alcohol | Ethylbenzene | Total (lbs) |
| 2003 | 1,250 | — | — | — | — | 1,250 |
| 2000 | 5,550 | — | — | — | — | 5,550 |
| 1999 | 1,600 | — | — | — | — | 1,600 |
| 1998 | 26,417 | — | — | — | — | 26,417 |
| 1997 | 25,635 | — | — | — | — | 25,635 |
| 1996 | 14,635 | — | — | — | — | 14,635 |
| 1995 | 12,898 | — | — | — | — | 12,898 |
| 1994 | 12,893 | — | — | — | — | 12,893 |
| 1993 | 15,540 | 29,159 | 12,848 | — | — | 57,547 |
| 1992 | 14,114 | 48,317 | — | 11,562 | 10,993 | 84,986 |
▎ 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.