Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DAYTON SUPERIOR OREGON
402 S FIRST ST, OREGON, IL, 61061
Parent company: DAYTON SUPERIOR SPECIALTY CHEMICAL CORP
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 | Xylene (mixed isomers) | 1,2,4-Trimethylbenzene | Styrene | Ethylbenzene | Cumene | Total (lbs) |
| 2000 | 6,500 | — | 6,500 | — | — | 13,000 |
| 1999 | 6,500 | 5,100 | — | 1,300 | 750 | 13,650 |
| 1998 | 6,500 | 5,100 | — | 1,300 | 750 | 13,650 |
| 1994 | 500 | 255 | — | 255 | 10 | 1,020 |
| 1993 | 500 | 255 | — | 255 | 10 | 1,020 |
| 1992 | 500 | 255 | — | 255 | 10 | 1,020 |
| 1991 | 1,000 | 255 | — | 500 | — | 2,010 |
| 1990 | 500 | 255 | — | — | — | 1,010 |
| 1989 | 1,000 | 500 | — | — | — | 2,000 |
| 1988 | 1,442 | — | — | — | — | 1,442 |
▎ 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.