Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KENNAMETAL FIRTH STERLING
4435 W 12TH ST, HOUSTON, TX, 77055
Parent company: KENNAMETAL 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 | Acetone | n-Hexane | Methanol | Cobalt | Nickel | Total (lbs) |
| 2016 | — | — | — | — | 5 | 11 |
| 2015 | — | — | — | — | 5 | 5 |
| 2012 | — | — | — | 0 | — | 0 |
| 2011 | — | — | — | 0 | — | 0 |
| 2010 | — | — | — | 0 | — | 0 |
| 2009 | — | — | — | 0 | — | 0 |
| 2008 | — | — | — | 0 | — | 0 |
| 2007 | — | — | — | 0 | — | 0 |
| 2006 | — | — | — | 0 | — | 0 |
| 2005 | — | — | — | 0 | — | 0 |
| 2004 | — | — | — | 1 | — | 1 |
| 2003 | — | — | — | 1 | — | 1 |
| 2002 | — | — | — | 1 | — | 1 |
| 1997 | — | 5,294 | — | — | — | 5,294 |
| 1996 | — | 23,401 | — | 94 | — | 23,495 |
| 1995 | — | 29,950 | — | 4,050 | — | 34,000 |
| 1994 | — | — | — | 2,925 | — | 2,925 |
| 1993 | 31,100 | — | — | 90 | — | 31,190 |
| 1992 | 56,199 | — | 11,600 | 90 | — | 67,889 |
| 1991 | 6,199 | — | 11,200 | 17 | — | 17,416 |
| 1990 | 6,150 | — | 10,478 | 17 | — | 16,645 |
| 1989 | 5,750 | — | 11,100 | 18 | — | 16,868 |
| 1988 | 6,450 | — | — | — | — | 6,450 |
▎ 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.