Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
SYSTEMS CONTROL
3201 E INDUSTRIAL DR, IRON MOUNTAIN, MI, 49801
Parent company: NORTHERN STAR INDUSTRIES INC
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Copper | Manganese | Total |
|---|---|---|---|
| 2022 | 5 | 5 | 10 |
| 2021 | 5 | 5 | 10 |
| 2020 | 5 | 5 | 10 |
| 2019 | 5 | 5 | 10 |
| 2018 | 5 | 5 | 10 |
| 2017 | 5 | 5 | 10 |
| 2016 | 22 | 0 | 22 |
| 2015 | 3 | 4 | 7 |
| 2014 | 8 | 5 | 13 |
| 2013 | 6 | 4 | 10 |
| 2012 | 5 | 5 | 10 |
| 2011 | 5 | 5 | 10 |
| 2010 | 5 | 5 | 10 |
| 2009 | 5 | 5 | 10 |
| 1998 | 250 | 250 | 500 |
| 1997 | 250 | 250 | 500 |
| 1996 | 250 | 250 | 500 |
| 1995 | 5 | — | 5 |
| 1994 | 5 | — | 5 |
| 1993 | 5 | — | 5 |