Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
THOMAS & BETTS CORP, IOWA CITY PLANT
2222 OLD HWY 218 S, IOWA CITY, IA, 52246
Parent company: THOMAS & BETTS CORP
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 | Copper compounds | Total (lbs) | |||
| 1992 | 7,384 | — | 7,384 | |||
| 1991 | 24,600 | — | 24,600 | |||
| 1990 | 26,200 | — | 26,200 | |||
| 1989 | — | 50 | 50 | |||
▎ 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.