Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KEYSTONE FASTENERS INC
1407 S POWELL, SPRINGDALE, AR, 72764
Parent company: KEYSTONE CONSOLIDATED INDUSTRIES INC
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 | Acetone | 1,1,1-Trichloroethane | Toluene | Total (lbs) | ||
| 2002 | — | — | 15,000 | 15,000 | ||
| 2001 | — | — | 15,000 | 15,000 | ||
| 2000 | — | — | 16,000 | 16,000 | ||
| 1999 | — | — | 15,000 | 15,000 | ||
| 1998 | — | — | 17,000 | 17,000 | ||
| 1997 | — | — | 16,000 | 16,000 | ||
| 1996 | — | — | 18,000 | 18,000 | ||
| 1995 | — | — | 18,000 | 18,000 | ||
| 1994 | — | — | 16,000 | 16,000 | ||
| 1993 | 148,000 | 35,000 | 14,000 | 197,000 | ||
| 1992 | 101,000 | 122,000 | — | 223,000 | ||
| 1991 | 71,400 | 80,800 | — | 152,200 | ||
| 1990 | 83,000 | 89,000 | — | 172,000 | ||
| 1989 | 93,000 | 65,000 | — | 158,000 | ||
| 1988 | 87,000 | — | — | 87,000 | ||
▎ 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.