Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALLOY SURFACES CO INC
100 LOCKE RD, WILMINGTON, DE, 198093513
Parent company: CHG GROUP INC
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 | 1,1,1-Trichloroethane | Nickel | Aluminum (fume or dust) | Chromium | Aluminum oxide (fibrous forms) | Total (lbs) |
| 1998 | 229 | 250 | — | — | — | 479 |
| 1997 | 450 | 250 | — | — | — | 700 |
| 1996 | 450 | 250 | — | — | — | 700 |
| 1995 | 450 | 250 | — | — | — | 700 |
| 1994 | 300 | 250 | — | — | — | 550 |
| 1993 | 1,200 | 250 | — | 250 | — | 1,700 |
| 1992 | 1,200 | 50 | 950 | 500 | — | 2,700 |
| 1991 | 1,200 | 20 | 65 | 5 | — | 1,290 |
| 1990 | 250 | 250 | 500 | 250 | — | 1,250 |
| 1989 | 200 | 45 | 45 | 10 | — | 300 |
| 1988 | 2,200 | 45 | — | — | 144 | 2,389 |
▎ 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.