Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
NATIONAL COMPUTER SYSTEMS INC
2125 4TH ST NW, OWATONNA, MN, 55060
Parent company: NATIONAL COMPUTER SYSTEMS
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Toluene | Total |
|---|---|---|
| 1990 | 15,425 | 15,425 |
| 1989 | 12,757 | 12,757 |