Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
OMG APEX
15 MILES W HWY 91, SAINT GEORGE, UT, 84770
Parent company: OM GROUP INC
Carcinogen
— EPA classifications across all reporting years
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 | Manganese compounds | Cobalt | Cobalt compounds | Ammonia | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 2002 | 92,717 | — | 2,852 | 5,880 | — | 101,449 |
| 2001 | 100,467 | — | 1,660 | 10,800 | — | 113,177 |
| 1999 | — | — | 10,080 | — | — | 10,080 |
| 1998 | — | — | 20,490 | — | — | 20,490 |
| 1997 | — | — | 42,630 | — | — | 42,630 |
| 1996 | — | 36,050 | — | — | — | 36,050 |
| 1995 | — | 34,150 | — | — | — | 34,150 |
| 1994 | — | 10,650 | — | — | — | 10,650 |
| 1993 | — | — | — | — | 5 | 5 |
| 1992 | — | — | — | — | 5 | 5 |
| 1991 | — | — | — | — | 250 | 750 |
▎ 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.