Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HUTCHINSON TECHNOLOGY INC
3401 N 4TH AVE, SIOUX FALLS, SD, 571040768
Parent company: HUTCHINSON TECHNOLOGIES INC
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 | Nitric acid | Phosphoric acid | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | ||
| 1998 | 380 | 340 | — | 720 | ||
| 1997 | 560 | 500 | — | 1,060 | ||
| 1996 | 1,350 | 490 | — | 1,840 | ||
| 1995 | 1,350 | 1,250 | 10 | 2,610 | ||
| 1994 | 1,350 | 1,250 | — | 2,600 | ||
| 1993 | 2,500 | 150 | — | 2,650 | ||
| 1992 | 2,000 | 150 | — | 2,150 | ||
| 1991 | 3,000 | 200 | — | 3,200 | ||
| 1990 | 3,000 | 200 | — | 3,200 | ||
| 1989 | 2,000 | 200 | — | 2,200 | ||
▎ 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.