Facility detail

OLIN WINCHESTER LLC MAIN PLANT

427 NORTH SHAMROCK ST., EAST ALTON, IL, 62024

Parent company: OLIN CORP

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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 1,1,1-Trichloroethane Nitrate compounds (water dissociable; reportable only when in aqueous solution) Zinc (fume or dust) Ethylene glycol Zinc compounds Total (lbs)
2024 — 5,703 — 1,007 718 9,652
2023 — 5,476 — 1,135 550 9,315
2022 — 5,689 — 1,085 641 9,521
2021 — 5,689 — 677 524 9,017
2020 — 6,013 — 1,280 736 10,062
2019 — 7,511 — 929 866 11,879
2018 — 8,421 — 739 924 12,429
2017 — 9,311 — 542 756 13,005
2016 — 10,401 — 515 976 14,837
2015 — 12,854 — 606 1,538 19,036
2014 — 12,977 — 564 1,349 19,127
2013 — 12,308 — — 1,554 18,379
2012 — 12,896 — 365 1,432 18,687
2011 — 12,080 — 700 1,941 19,676
2010 — 13,426 — 635 2,307 21,282
2009 — 9,948 — — 2,342 19,869
2008 — 10,542 — — 2,682 18,063
2007 — 9,285 — 6,587 2,742 23,414
2006 — 11,754 — 9,164 3,415 33,210
2005 — 11,556 — 6,034 3,720 31,190
2004 — 6,373 — 8,928 2,054 27,682
2003 — 6,447 — 8,360 1,840 27,231
2002 — 6,263 — 10,127 2,296 29,002
2001 — 6,300 — 9,820 2,230 28,784
2000 — 7,200 — 21,710 2,470 42,955
1999 — 7,500 — 14,470 2,110 34,547
1998 — 7,100 — 12,410 1,760 33,100
1997 — 6,900 — 9,300 1,960 29,430
1996 10,500 6,600 — 10,340 1,990 41,693
1995 18,180 7,800 — 16,520 — 65,939
1994 16,160 — — 14,450 2,670 59,572
1993 23,230 — — 7,700 2,600 59,820
1992 91,920 — — — — 116,855
1991 151,500 — 43,000 — — 207,716
1990 240,026 — 47,126 703 — 297,855
1989 283,060 — 54,826 800 — 352,294
1988 — — 56,100 — — 67,982
1987 — — — 1,600 — 3,261

▎ 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.