Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUPERIOR COS INC MANUFACTURING DIV
1000 E 14TH ST, DEWEY, OK, 74029
Parent company: SUPERIOR COS 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 | Manganese | Copper | Nickel | Chromium | Cobalt | Total (lbs) |
| 2001 | 23,843 | 19,397 | 18,346 | 13,692 | 4,279 | 79,557 |
| 2000 | 15,299 | 13,314 | 12,727 | 9,398 | — | 50,738 |
| 1999 | 28,692 | 18,462 | 17,648 | 13,032 | — | 77,834 |
▎ 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.