Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
RING SCREW WORKS, TROY COATINGS DIV
1849 RING DR, TROY, MI, 48084
Parent company: RING SCREW WORKS
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 | Phosphoric acid | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Zinc compounds | Nickel compounds | Total (lbs) | |
| 1992 | 500 | 500 | 255 | — | 1,255 | |
| 1991 | 500 | 500 | 256 | — | 1,256 | |
| 1990 | 1,000 | 500 | 500 | 500 | 2,500 | |
| 1989 | 1,000 | 500 | 500 | — | 2,000 | |
| 1988 | — | 250 | — | — | 250 | |
▎ 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.