Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COLLIS INC
2005 S 19TH ST, CLINTON, IA, 52732
Parent company: SSW HOLDING CO
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) | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Zinc compounds | Sodium hydroxide (solution) | Total (lbs) | |
| 1995 | 11,710 | — | 250 | — | 11,960 | |
| 1994 | 14,110 | 1,305 | — | — | 15,415 | |
| 1993 | 63,010 | 2,405 | 250 | — | 65,665 | |
| 1992 | 72,005 | 2,905 | 250 | — | 75,160 | |
| 1991 | 80,010 | 2,805 | 250 | — | 83,065 | |
| 1990 | 59,010 | 3,305 | 250 | — | 62,565 | |
| 1989 | 103,235 | 4,768 | 250 | — | 108,253 | |
| 1988 | — | 5,418 | 250 | 250 | 5,918 | |
| 1987 | — | 4,200 | 250 | 250 | 4,700 | |
▎ 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.