Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ROHR INC
18238 SHOWALTER RD, HAGERSTOWN, MD, 217421371
Parent company: ROHR 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 | Methyl ethyl ketone | Aluminum oxide (fibrous forms) | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | |
| 1995 | 35,100 | 8,600 | — | — | 43,700 | |
| 1994 | 38,100 | — | — | — | 38,100 | |
| 1993 | 66,092 | 12,500 | — | — | 78,592 | |
| 1992 | 48,300 | 11,700 | — | — | 60,000 | |
| 1991 | 156,480 | 17,560 | — | — | 174,040 | |
| 1990 | 172,000 | 32,400 | — | — | 204,400 | |
| 1989 | 289,930 | 55,077 | — | 27 | 345,034 | |
| 1988 | — | — | 3,000 | — | 3,000 | |
▎ 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.