Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SEMAYSY INC
130 NE 50TH, OKLAHOMA CITY, OK, 731523444
Parent company: UNI-SUN 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 | Acetone | Certain glycol ethers | 2-Ethoxyethanol | Isopropyl alcohol (only persons who manufacture by the strong acid process are subject, no supplier notification) | n-Hexane | Total (lbs) |
| 1995 | — | — | 12,345 | 12,184 | 926 | 25,455 |
| 1994 | — | 12,306 | — | — | — | 12,306 |
| 1993 | 32,744 | 13,345 | — | — | — | 46,089 |
| 1992 | 43,500 | 72,000 | — | — | — | 115,500 |
| 1991 | 30,000 | — | — | — | — | 30,000 |
▎ 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.