Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NORTH STAR CASTEEL PRODUCTS INC
820 S BRADFORD ST, SEATTLE, WA, 98108
Parent company: NA
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 | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | Manganese And Manganese Compounds | Total (lbs) | |
| 2024 | 178 | 53 | — | — | 231 | |
| 2023 | — | — | 280 | 349 | 629 | |
| 2022 | 341 | 277 | — | — | 618 | |
| 2021 | 352 | 281 | — | — | 633 | |
| 2020 | 346 | 279 | — | — | 625 | |
| 2019 | 349 | 280 | — | — | 629 | |
| 2018 | 358 | — | 282 | — | 640 | |
| 1993 | 750 | 250 | — | — | 1,000 | |
| 1992 | 750 | 250 | — | — | 1,000 | |
| 1991 | 750 | 250 | — | — | 1,000 | |
| 1990 | 750 | 250 | — | — | 1,000 | |
| 1989 | 750 | 250 | — | — | 1,000 | |
▎ 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.