Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HIQUAL MANUFACTURING USA INC
3139 CREEK DR, RAPID CITY, SD, 577031453
Parent company: NA
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) | Total (lbs) | ||||
| 1999 | 20,871 | 20,871 | ||||
| 1998 | 16,372 | 16,372 | ||||
| 1997 | 17,640 | 17,640 | ||||
| 1996 | 31,408 | 31,408 | ||||
| 1995 | 39,595 | 39,595 | ||||
| 1994 | 42,544 | 42,544 | ||||
| 1993 | 19,400 | 19,400 | ||||
▎ 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.