Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
THIOKOL PROPULSION CLEARFIELD OPERATIONS
1298 S FREEPORT INDUSTRIAL PKWY, CLEARFIELD, UT, 84015
Parent company: CORDANT TECHS
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 | 1,1,1-Trichloroethane | 1,4-Dioxane | Total (lbs) | |||
| 1997 | 14,000 | — | 14,000 | |||
| 1996 | 130,000 | — | 130,000 | |||
| 1995 | 160,000 | — | 160,000 | |||
| 1994 | 280,000 | — | 280,000 | |||
| 1993 | 320,000 | — | 320,000 | |||
| 1992 | 500,000 | 11,000 | 511,000 | |||
| 1991 | 1,320,000 | 24,000 | 1,344,000 | |||
| 1990 | 510,000 | 12,000 | 522,000 | |||
| 1989 | 560,000 | 14,000 | 574,000 | |||
| 1988 | 780,000 | 19,000 | 799,000 | |||
▎ 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.