Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
GREGG INDUSTRIES INC
10460 HICKSON ST, EL MONTE, CA, 91731
Parent company: NEENAH ENTERPRISES 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 | Sodium hydroxide (solution) | Nickel | Copper | Manganese | Total (lbs) | |
| 2009 | — | 2 | — | — | 2 | |
| 2008 | — | 23 | 4 | — | 27 | |
| 2007 | — | 7 | 0 | — | 7 | |
| 2006 | — | 7 | 0 | 2 | 10 | |
| 2005 | — | 25 | 2 | — | 27 | |
| 2004 | — | 15 | — | — | 15 | |
| 2003 | — | 11 | — | — | 11 | |
| 2002 | — | 1 | — | — | 1 | |
| 2001 | — | 5 | — | — | 5 | |
| 2000 | — | 2 | — | — | 2 | |
| 1999 | — | 2 | — | — | 2 | |
| 1998 | — | 2 | — | — | 2 | |
| 1997 | — | 27 | — | — | 27 | |
| 1996 | — | 525 | — | — | 525 | |
| 1995 | — | 664 | — | — | 664 | |
| 1994 | — | 1,145 | — | — | 1,145 | |
| 1993 | — | 698 | — | — | 698 | |
| 1992 | — | 786 | — | — | 786 | |
| 1991 | — | 657 | — | — | 657 | |
| 1988 | 20,625 | — | — | — | 20,625 | |
▎ 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.