Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
UNION OIL CO OF CA (DBA UNOCAL) CHEMICALS DIV LA PLANT
1480 W ANAHEIM ST, WILMINGTON, CA, 90744
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 | Ammonia | Sodium sulfate (solution) | 1,2,4-Trimethylbenzene | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Xylene (mixed isomers) | Total (lbs) |
| 1990 | 56,000 | — | 77 | — | 37 | 56,114 |
| 1989 | 56,000 | — | 61 | 20 | 42 | 56,123 |
| 1988 | 50,650 | — | 250 | 79 | — | 50,979 |
| 1987 | — | 11,000 | — | — | — | 11,000 |
▎ 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.