Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KOPPERS INDUSTRIES INC
BAGGETT - MARYSVILLE RD, OROVILLE, CA, 95965
Parent company: NA
Carcinogen
PBT
— 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 | Creosote | Polycyclic aromatic compounds | Naphthalene | Anthracene | Dibenzofuran | Total (lbs) |
| 2000 | 30,146 | 2,006 | — | — | — | 32,161 |
| 1999 | 11,454 | — | — | — | — | 11,454 |
| 1998 | 13,275 | — | — | — | — | 13,275 |
| 1997 | 2,058 | — | — | — | — | 2,058 |
| 1996 | 4,929 | — | — | — | — | 4,929 |
| 1995 | 3,333 | — | — | — | — | 3,375 |
| 1994 | 4,070 | — | — | — | — | 4,094 |
| 1993 | 3,953 | — | — | — | — | 3,995 |
| 1992 | 5,180 | — | — | — | — | 5,210 |
| 1991 | 2,203 | — | — | — | — | 2,236 |
| 1990 | 6,834 | — | — | — | — | 6,850 |
| 1989 | — | — | 762 | 70 | 105 | 937 |
| 1987 | — | — | — | 204 | — | 204 |
▎ 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.