Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
OWEN STEEL CO
813 S MARKET ST, WILMINGTON, DE, 19801
Parent company: OWEN STEEL CO
Carcinogen
— EPA classifications across all reporting years
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 | Manganese And Manganese Compounds | Nickel compounds | Nickel And Nickel Compounds | Total (lbs) | |
| 2024 | — | 19 | — | 1 | 20 | |
| 2023 | 17 | — | — | 0 | 18 | |
| 2022 | — | 17 | — | 0 | 18 | |
| 2020 | 34 | — | 0 | — | 34 | |
| 2019 | — | 34 | — | 1 | 35 | |
| 2018 | — | 29 | — | 1 | 30 | |
| 2017 | 37 | — | 2 | — | 39 | |
| 2016 | 33 | — | 1 | — | 34 | |
| 2015 | 22 | — | 1 | — | 23 | |
▎ 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.