Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SIMPSON STRONG-TIE ANCHOR SYSTEMS
136 W OFFICIAL RD, ADDISON, IL, 60101
Parent company: SIMPSON STRONG TIE CO INC
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 | Methyl methacrylate | 4,4'-Isopropylidenediphenol | Trade Secret | Phenol | Total (lbs) | |
| 2016 | 774 | — | — | 75 | 849 | |
| 2015 | 605 | — | — | — | 605 | |
| 2014 | 565 | — | — | — | 565 | |
| 2013 | 753 | — | — | — | 753 | |
| 2012 | 268 | 63 | — | — | 331 | |
| 2011 | 317 | 66 | — | — | 383 | |
| 2010 | 356 | 194 | — | — | 550 | |
| 2009 | 1,176 | 738 | — | — | 1,914 | |
| 2008 | 1,189 | 1,005 | — | — | 2,194 | |
| 2007 | 1,089 | 1,267 | — | — | 2,356 | |
| 2006 | — | — | 3,599 | — | 3,599 | |
| 2005 | 1,982 | 1,357 | — | — | 3,339 | |
| 2004 | 1,166 | 282 | — | — | 1,448 | |
| 2003 | 1,159 | 349 | — | — | 1,508 | |
| 2002 | 731 | 201 | — | — | 932 | |
▎ 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.