Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
20751 SUPERIOR ST, CHATSWORTH, CA, 91311
Parent company: METAL IMPROVEMENT CO INC
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Methyl ethyl ketone | Total (lbs) | ||||
| 2002 | 11,332 | 11,332 | ||||
| 2001 | 5,830 | 5,830 | ||||
| 2000 | 7,955 | 7,955 | ||||
| 1999 | 6,993 | 6,993 | ||||
| 1998 | 11,546 | 11,546 | ||||
| 1997 | 15,222 | 15,222 | ||||
▎ 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.