Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
COMPASS MINERALS AMERICA INC
1100 W RAILROAD ST, DULUTH, MN, 55802
Parent company: COMPASS MINERALS INTERNATIONAL 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 | Manganese And Manganese Compounds | Total (lbs) | ||
| 2024 | 59 | 59 | — | 118 | ||
| 2023 | 59 | 39 | — | 98 | ||
| 2022 | — | 39 | 59 | 98 | ||
| 2021 | 58 | 93 | — | 151 | ||
| 2020 | 93 | 58 | — | 151 | ||
| 2019 | 93 | 58 | — | 151 | ||
| 2018 | 93 | 58 | — | 151 | ||
▎ 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.