Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PERMA INC
605 SPRINGS RD, BEDFORD, MA, 017301132
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 | Certain glycol ethers | Toluene | Total (lbs) | |||
| 1994 | 255 | 255 | 510 | |||
| 1993 | 255 | 255 | 510 | |||
| 1992 | 15 | 27 | 42 | |||
| 1991 | 16 | 30 | 46 | |||
| 1990 | 530 | 530 | 1,060 | |||
| 1989 | 500 | — | 500 | |||
| 1988 | 500 | — | 500 | |||
▎ 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.