Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MARQUIS INC
7531 W POWER PLANT RD, HENNEPIN, IL, 61327
Parent company: NA
Carcinogen
— 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 | Hydrogen sulfide | Toluene | Xylene (mixed isomers) | n-Hexane | Benzene | Total (lbs) |
| 2016 | — | — | — | 6 | 1 | 7 |
| 2015 | — | — | — | 1 | 7 | 8 |
| 2014 | — | — | — | 18 | 2 | 20 |
| 2012 | 163 | 74 | 74 | 45 | 30 | 386 |
▎ 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.