Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HIGHWAY EQUIPMENT CO
200 1ST AVE W, WALFORD, IA, 52351
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 | Xylene (mixed isomers) | Chromium | Nickel | Total (lbs) | ||
| 1997 | 14,288 | 1 | — | 14,289 | ||
| 1996 | 11,918 | 1 | — | 11,919 | ||
| 1995 | 12,604 | — | — | 12,604 | ||
| 1994 | 13,533 | — | — | 13,533 | ||
| 1993 | — | 10 | 6 | 16 | ||
| 1992 | — | 5 | 3 | 8 | ||
| 1991 | 12,237 | 10 | — | 12,247 | ||
| 1990 | 14,000 | 8 | — | 14,008 | ||
| 1989 | 16,000 | 11 | — | 16,011 | ||
| 1988 | 14,000 | — | — | 14,000 | ||
▎ 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.