Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KENNAMETAL INC
139 WAREHO US E RD, HENDERSON, NC, 27537
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 | Ammonia | Cobalt | Total (lbs) | |||
| 2024 | — | 1 | 1 | |||
| 2022 | — | 1 | 1 | |||
| 2021 | — | 50 | 50 | |||
| 2020 | — | 1 | 1 | |||
| 2019 | — | 1 | 1 | |||
| 2018 | — | 2 | 2 | |||
| 2017 | — | 1 | 1 | |||
| 2016 | — | 10 | 10 | |||
| 2015 | — | 15 | 15 | |||
| 2014 | — | 11 | 11 | |||
| 2013 | — | 14 | 14 | |||
| 2012 | — | 6 | 6 | |||
| 2011 | — | 6 | 6 | |||
| 2010 | — | 6 | 6 | |||
| 2009 | 10 | 5 | 15 | |||
| 2008 | 10 | 4 | 14 | |||
| 2007 | 10 | 4 | 14 | |||
| 2006 | 10 | 6 | 16 | |||
| 2005 | 10 | 6 | 16 | |||
| 2004 | — | 5 | 5 | |||
| 2003 | — | 15 | 15 | |||
| 2002 | — | 15 | 15 | |||
| 2001 | — | 15 | 15 | |||
| 2000 | — | 10 | 10 | |||
| 1999 | — | 260 | 260 | |||
| 1998 | 26,801 | 5 | 26,806 | |||
| 1997 | 50,253 | 5 | 50,258 | |||
| 1996 | 33,401 | 5 | 33,406 | |||
| 1995 | 46,128 | 10 | 46,138 | |||
| 1994 | 62,674 | 20 | 62,694 | |||
| 1993 | 32,810 | 20 | 32,830 | |||
| 1992 | 46,467 | 20 | 46,487 | |||
| 1991 | 53,250 | 255 | 53,505 | |||
| 1990 | 45,850 | 500 | 46,350 | |||
| 1989 | — | 500 | 500 | |||
| 1988 | — | 500 | 500 | |||
▎ 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.