Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
RISDON-AMS (USA) INC
1 RISDON ST, NAUGATUCK, CT, 06770
Parent company: RISDON CORP
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 | 1,1,1-Trichloroethane | Copper | Nitric acid | Total (lbs) | ||
| 2000 | — | 250 | — | 250 | ||
| 1999 | — | 250 | — | 250 | ||
| 1998 | — | 250 | — | 250 | ||
| 1997 | — | 250 | — | 250 | ||
| 1996 | — | 250 | — | 250 | ||
| 1995 | — | 250 | — | 250 | ||
| 1994 | 8,000 | — | — | 8,000 | ||
| 1993 | 96,000 | — | — | 96,000 | ||
| 1992 | 89,000 | — | — | 89,000 | ||
| 1991 | 67,000 | — | — | 67,000 | ||
| 1990 | 81,000 | — | — | 81,000 | ||
| 1989 | 73,700 | — | 750 | 74,450 | ||
| 1988 | 172,028 | — | — | 172,028 | ||
| 1987 | 171,733 | — | — | 171,733 | ||
▎ 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.