Facility detail

HENDRICKSON TRAILER SUSPENSION SYSTEMS

5701 AIRPORT RD, MITCHELL, SD, 57301

Parent company: THE BOLER CO

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 Xylene (mixed isomers) Manganese Lead Total (lbs)
2024 — 7 — 7
2023 — 8 — 8
2022 — 8 — 8
2021 — 8 — 8
2020 — 11 0 11
2019 — 8 — 8
2018 — 8 — 8
2017 — 8 — 8
2016 — 8 — 8
2015 — 9 — 9
2014 — 9 — 9
2013 — 9 — 9
2012 — 10 — 10
2011 — 6 — 6
2010 — 1 — 1
2009 — 0 — 0
2008 — 1 — 1
2007 — 1 — 1
2006 — 1 — 1
2005 — 1 — 1
2004 — 1 — 1
2003 — 1 — 1
2002 — 2 — 2
2001 — 2 — 2
2000 31,219 2 — 31,221
1999 35,659 83 — 35,742
1998 35,659 83 — 35,742
1997 16,700 250 — 16,950
1996 26,300 250 — 26,550
1995 23,600 250 — 23,850
1994 19,200 250 — 19,450
1993 — 250 — 250
1992 — 250 — 250

▎ 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.