Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PACKAGING RESOURCES CO
4715 N COLUMBIA BLVD, PORTLAND, OR, 97203
Parent company: COLUMBIA CORRUGATED BOX CO 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 | Dichloromethane | 4,4'-Methylenedi(phenyl isocyanate) | Total (lbs) | |||
| 1991 | — | 5 | 5 | |||
| 1990 | 11,867 | 1 | 11,868 | |||
| 1989 | — | 1,751 | 1,751 | |||
| 1988 | — | 3,641 | 3,641 | |||
▎ 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.