Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ROCKNEL FASTENER INC.
5309 - 11TH ST, ROCKFORD, IL, 61109
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 | Methanol | Zinc compounds | Nitric acid | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) | |
| 2024 | 632 | 7 | 1 | — | 640 | |
| 2023 | 720 | 7 | 1 | — | 728 | |
| 2022 | 634 | 6 | 1 | — | 641 | |
| 2021 | 830 | 7 | 2 | — | 839 | |
| 2020 | 576 | 7 | 3 | — | 586 | |
| 2019 | 799 | 9 | 4 | — | 812 | |
| 2018 | 790 | 9 | 4 | — | 803 | |
| 2017 | 821 | 10 | 3 | — | 834 | |
| 2016 | 852 | 12 | 2 | — | 866 | |
| 2015 | 852 | 12 | 2 | — | 866 | |
| 2014 | 845 | 10 | 3 | — | 858 | |
| 2013 | 830 | 14 | 4 | — | 848 | |
| 2012 | 857 | 13 | 3 | — | 873 | |
| 2011 | 1,159 | 9 | 1 | — | 1,169 | |
| 2010 | 6,048 | 504 | 73 | — | 6,625 | |
| 2009 | 3,841 | 354 | 80 | — | 4,275 | |
| 2008 | 6,084 | 530 | 121 | — | 6,735 | |
| 2007 | 11,605 | 836 | 661 | 291 | 13,393 | |
| 2006 | 5,000 | 665 | 90 | 263 | 6,018 | |
| 2005 | 11,083 | 600 | 502 | 275 | 12,460 | |
| 2004 | 8,455 | 5 | 250 | — | 8,710 | |
| 2003 | 6,436 | — | 250 | — | 6,686 | |
| 2002 | 6,081 | — | — | — | 6,081 | |
| 2001 | 4,745 | — | — | — | 4,745 | |
| 2000 | 5,758 | — | — | — | 5,758 | |
| 1999 | 4,520 | — | — | — | 4,520 | |
| 1998 | 4,240 | — | — | — | 4,240 | |
| 1997 | 3,240 | — | — | — | 3,240 | |
| 1996 | 2,780 | — | — | — | 2,780 | |
| 1995 | 2,560 | — | — | — | 2,560 | |
| 1994 | 2,420 | — | — | — | 2,420 | |
▎ 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.