Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
LAND O'LAKES PURINA FEED LLC-SPENCER
B4191 STATE HWY 13N, SPENCER, WI, 54479
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 | Manganese compounds | Zinc compounds | Copper compounds | Total (lbs) | ||
| 1995 | 23 | — | — | 23 | ||
| 1994 | 23 | 24 | 4 | 51 | ||
| 1993 | 38 | 39 | 5 | 82 | ||
| 1992 | 39 | 40 | 6 | 85 | ||
| 1991 | 8 | 9 | 1 | 18 | ||
▎ 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.