Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SOUTHWESTERN WIRE INC
3505 N INTERSTATE DR, NORMAN, OK, 73069
Parent company: NA
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 | Zinc compounds | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead compounds | Lead And Lead Compounds | Total (lbs) | |
| 2024 | 98 | — | — | 0 | 98 | |
| 2023 | 324 | — | — | 0 | 324 | |
| 2022 | 336 | — | — | 0 | 336 | |
| 2021 | 382 | — | — | 0 | 382 | |
| 2020 | 381 | — | — | 0 | 381 | |
| 2019 | 383 | — | — | 0 | 383 | |
| 2018 | 472 | — | — | — | 472 | |
| 2017 | 987 | — | 0 | — | 988 | |
| 2016 | 835 | — | 0 | — | 836 | |
| 2015 | 840 | — | 0 | — | 840 | |
| 2014 | 884 | — | 0 | — | 884 | |
| 2013 | 889 | — | 1 | — | 890 | |
| 2012 | 616 | — | 1 | — | 617 | |
| 2011 | 980 | — | 1 | — | 981 | |
| 2010 | 996 | — | 1 | — | 997 | |
| 2009 | 991 | — | 1 | — | 992 | |
| 2008 | 913 | — | 1 | — | 914 | |
| 2007 | 1,097 | — | 1 | — | 1,098 | |
| 2006 | 1,000 | — | — | — | 1,000 | |
| 2005 | 1,000 | — | — | — | 1,000 | |
| 2004 | 500 | — | — | — | 500 | |
| 2003 | 500 | — | 2 | — | 502 | |
| 2002 | 579 | — | 2 | — | 581 | |
| 2001 | 2,315 | — | 4 | — | 2,319 | |
| 2000 | 1,000 | — | — | — | 1,000 | |
| 1999 | 250 | — | — | — | 250 | |
| 1998 | 250 | — | — | — | 250 | |
| 1997 | 9,686 | — | — | — | 9,686 | |
| 1996 | 250 | — | — | — | 250 | |
| 1994 | — | 2,950 | — | — | 2,950 | |
| 1993 | — | 13,005 | — | — | 13,005 | |
| 1992 | — | 1,405 | — | — | 1,405 | |
▎ 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.