Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
LAND O'LAKES FEED IOWA CITY
RTE 6, IOWA CITY, IA, 52340
Parent company: LAND O'LAKES 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 | Zinc compounds | Copper compounds | Zinc (fume or dust) | Total (lbs) | ||
| 1994 | 43 | 13 | — | 56 | ||
| 1993 | 21 | 7 | — | 28 | ||
| 1992 | 250 | 5 | — | 255 | ||
| 1991 | — | — | 5 | 5 | ||
| 1990 | — | — | 5 | 5 | ||
▎ 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.