Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
STALEY STEEL INC
5400 PRESTON RD, FRISCO, TX, 75034
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Zinc compounds | Chromium | Nickel | Manganese | Total |
|---|---|---|---|---|---|
| 2001 | 15 | 13 | 13 | — | 41 |
| 2000 | 14 | 12 | 12 | 14 | 52 |
| 1999 | 18 | 16 | 16 | 18 | 68 |
| 1998 | 17 | 16 | 16 | 18 | 67 |
| 1997 | 10 | 6 | 5 | — | 21 |