Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
E.E. ZIMMERMAN CO
2020 KNOTT ST, PITTSBURGH, PA, 15233
Parent company: ZIMMERMAN HOLDING CO
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 | Acetone | Methanol | Toluene | Methyl ethyl ketone | Dichloromethane | Total (lbs) |
| 2004 | — | 584 | 334 | — | — | 918 |
| 2003 | — | 797 | 323 | — | — | 1,120 |
| 2002 | — | 761 | 427 | 205 | — | 1,476 |
| 2001 | — | 824 | 489 | 247 | — | 1,651 |
| 2000 | — | 956 | 554 | 292 | — | 1,927 |
| 1999 | — | 973 | 591 | 270 | 122 | 2,127 |
| 1998 | — | 688 | 404 | 275 | — | 1,534 |
| 1993 | 2,894 | 876 | 669 | 201 | — | 5,237 |
| 1992 | 1,777 | 505 | 329 | 99 | — | 3,083 |
| 1991 | 1,272 | 575 | 312 | 215 | — | 2,606 |
| 1990 | 1,235 | 485 | 300 | 160 | — | 2,410 |
| 1989 | 1,000 | 440 | 260 | 130 | — | 2,030 |
| 1988 | 750 | — | 250 | 250 | 1,700 | 3,200 |
| 1987 | 750 | 250 | — | — | — | 1,750 |
▎ 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.