Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ASHLAND CHEMICAL CO
291 W ADAMS ST, COLTON, CA, 92324
Parent company: ASHLAND 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 | Styrene | Phthalic anhydride | Maleic anhydride | Dicyclopentadiene | Ethylene glycol | Total (lbs) |
| 1998 | 273 | — | — | — | — | 273 |
| 1997 | 1,554 | 405 | 121 | 75 | 124 | 2,279 |
| 1996 | 2,778 | 303 | 136 | 80 | 114 | 3,411 |
| 1995 | 953 | 316 | 119 | 309 | 69 | 1,859 |
| 1994 | 886 | 132 | 51 | — | 28 | 1,100 |
| 1993 | 677 | 39 | 39 | — | 21 | 778 |
| 1992 | 1,385 | — | 91 | — | — | 1,482 |
| 1991 | 1,305 | 223 | 83 | — | — | 1,611 |
| 1990 | 2,751 | 548 | 246 | — | 14 | 3,577 |
| 1989 | 2,984 | 465 | 566 | — | 12 | 4,039 |
| 1988 | — | 492 | — | — | — | 501 |
| 1987 | 24,315 | — | — | — | — | 24,315 |
▎ 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.