Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
LOCKPORT STEEL FABRICATORS LLC
3051 SOUTH STATE STREET, LOCKPORT, IL, 60441
Parent company: NA
Carcinogen
PBT
— 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 | Nickel | Chromium | Manganese compounds | Copper | Total (lbs) |
| 2024 | 17 | 2 | 2 | — | — | 21 |
| 2023 | 15 | 4 | 4 | — | — | 23 |
| 2022 | 17 | 6 | 5 | — | — | 28 |
| 2021 | 18 | 5 | 4 | — | — | 27 |
| 2020 | 14 | 5 | 5 | — | — | 24 |
| 2019 | 17 | 9 | 8 | — | — | 34 |
| 2018 | 16 | 10 | 9 | — | — | 35 |
| 2017 | 26 | 22 | 19 | — | 5 | 72 |
| 2016 | 11 | 28 | 25 | — | 6 | 70 |
| 2015 | 5 | 4 | 4 | — | — | 13 |
| 2014 | 1 | 2 | 2 | — | — | 5 |
| 2013 | 1 | 1 | — | — | — | 2 |
| 2012 | — | — | — | 3 | — | 6 |
| 2011 | — | — | — | 2 | — | 7 |
| 2009 | — | — | — | 9 | — | 9 |
| 2008 | — | — | — | 19 | — | 20 |
▎ 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.