Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
EXTANG CORP
5400 S STATE RD, ANN ARBOR, MI, 48108
Parent company: TECTUM HOLDINGS INC
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 | Total (lbs) | ||||
| 1993 | 8,560 | 8,560 | ||||
| 1992 | 144,753 | 144,753 | ||||
| 1991 | 78,707 | 78,707 | ||||
| 1990 | 32,000 | 32,000 | ||||
| 1989 | 46,500 | 46,500 | ||||
| 1988 | 36,000 | 36,000 | ||||
| 1987 | 65,000 | 65,000 | ||||
▎ 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.