Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MOLYCORP INC
9481 N HWY 85, LOUVIERS, CO, 80131
Parent company: UNOCAL CORP
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 | 1,2,4-Trimethylbenzene | Ammonia | Xylene (mixed isomers) | Nitric acid | Total (lbs) | |
| 1992 | 21,000 | 4,200 | — | 22 | 25,222 | |
| 1991 | 31,000 | 8,250 | 9,400 | 378 | 49,028 | |
| 1990 | 30,000 | 7,000 | 9,200 | 895 | 47,095 | |
| 1989 | 29,100 | 2,200 | — | 60 | 31,360 | |
| 1988 | — | 2,490 | — | 119 | 2,609 | |
| 1987 | — | 2,286 | — | — | 2,286 | |
▎ 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.