Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
QUALITY MAT CO INC
410 RATH ST, WATERLOO, IA, 50703
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 | Methyl ethyl ketone | Toluene | Xylene (mixed isomers) | Total (lbs) | ||
| 2007 | — | 14,504 | 14,818 | 29,322 | ||
| 2006 | — | 12,834 | 15,683 | 28,517 | ||
| 2005 | — | 39,599 | 8,357 | 47,956 | ||
| 2004 | — | 7,600 | 560 | 8,160 | ||
| 2002 | 71,200 | 30,560 | 2,240 | 104,000 | ||
| 2001 | 110,168 | 69,200 | 18,416 | 197,784 | ||
| 2000 | 140,240 | 124,900 | 29,920 | 295,060 | ||
| 1999 | 168,210 | 153,416 | 26,803 | 348,429 | ||
| 1998 | 162,081 | 139,077 | 30,276 | 331,434 | ||
| 1997 | 160,000 | 140,000 | 36,000 | 336,000 | ||
▎ 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.