Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KENT NUTRITION GROUP INC
4001 S LEWIS BLVD, SIOUX CITY, IA, 51106
Parent company: KENT 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 | Zinc compounds | Manganese compounds | Copper compounds | Total (lbs) | ||
| 2019 | 250 | 250 | — | 500 | ||
| 2018 | 30 | 30 | — | 60 | ||
| 2017 | 4 | 4 | 1 | 8 | ||
| 2016 | 3 | 2 | 1 | 6 | ||
▎ 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.