Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
BOEING PRECISION GEAR INC
4545 S WESTERN BLVD, CHICAGO, IL, 606093049
Parent company: BOEING 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 | Tetrachloroethylene | 1,1,1-Trichloroethane | Methanol | Dichloromethane | Ammonia | Total (lbs) |
| 1995 | — | 6,205 | — | — | — | 6,205 |
| 1994 | — | 6,630 | 11,344 | — | — | 18,224 |
| 1993 | — | 21,759 | 28,375 | — | — | 50,384 |
| 1992 | — | 14,548 | 16,010 | — | — | 31,558 |
| 1991 | — | 83,400 | 16,724 | — | — | 101,124 |
| 1990 | 46,000 | 197,000 | 26,000 | 2,260 | 1,900 | 274,410 |
| 1989 | 150,000 | 107,000 | 26,000 | 21,000 | 1,400 | 306,400 |
| 1988 | — | — | — | — | 2,900 | 4,000 |
| 1987 | 310,000 | — | — | — | — | 310,000 |
▎ 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.