Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CONTROL DATA CORP, ARDEN HILLS
4201 N LEXINGTON AVE, SAINT PAUL, MN, 551266198
Parent company: NA
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 | 1,1,1-Trichloroethane | Freon 113 (CFC-113) | Total (lbs) | |||
| 1991 | 17,300 | 11,800 | 29,100 | |||
| 1990 | 17,728 | 14,500 | 32,228 | |||
| 1989 | 12,600 | 13,200 | 25,800 | |||
| 1988 | 31,200 | 29,600 | 60,800 | |||
▎ 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.