Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PROTO LABS
2600 NIAGARA LN N, PLYMOUTH, MN, 554474719
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 | 1,1,1-Trichloroethane | Aluminum oxide (fibrous forms) | Copper | Total (lbs) | ||
| 1993 | 15,045 | — | — | 15,045 | ||
| 1992 | 47,470 | — | — | 47,470 | ||
| 1991 | 22,147 | — | — | 22,147 | ||
| 1990 | 29,700 | — | 250 | 29,950 | ||
| 1989 | 26,631 | 250 | 250 | 27,131 | ||
| 1988 | 17,412 | 250 | — | 17,662 | ||
| 1987 | — | 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.