Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KENNAMETAL INC ORWELL PLANT
180 PENNIMAN RD, ORWELL, OH, 44076
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 | 1,1,1-Trichloroethane | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Methanol | Titanium tetrachloride | Phosphoric acid | Total (lbs) |
| 2022 | — | — | — | — | — | 1 |
| 2021 | — | — | — | — | — | 1 |
| 2020 | — | — | — | — | — | 1 |
| 2019 | — | — | — | — | — | 1 |
| 2018 | — | — | — | 3,865 | — | 3,866 |
| 2017 | — | — | — | 3,865 | — | 3,866 |
| 2016 | — | — | — | — | — | 7 |
| 2015 | — | — | — | — | — | 7 |
| 2014 | — | 4,530 | 14,900 | — | — | 19,435 |
| 2013 | — | 4,130 | 11,100 | — | — | 15,235 |
| 2012 | — | — | 9,300 | 255 | — | 9,565 |
| 2011 | — | — | 10,146 | 5 | — | 10,161 |
| 2010 | — | — | — | 5 | — | 15 |
| 2009 | — | 6,682 | — | — | — | 6,692 |
| 2008 | — | 13,159 | — | 45 | — | 13,214 |
| 2007 | — | 14,203 | 10,042 | 63 | — | 24,314 |
| 2006 | — | 12,289 | 11,681 | 47 | — | 24,032 |
| 2005 | — | — | — | 10 | — | 15 |
| 2004 | — | — | — | 5 | — | 10 |
| 2003 | — | 9,608 | — | 1 | — | 9,610 |
| 2002 | — | 10,347 | — | 1 | — | 10,349 |
| 2001 | — | — | — | — | — | 5 |
| 2000 | — | — | — | 9 | — | 14 |
| 1999 | — | — | — | — | — | 1 |
| 1998 | — | — | — | 9 | 785 | 806 |
| 1997 | — | — | — | — | 752 | 762 |
| 1996 | — | — | — | — | 471 | 478 |
| 1995 | — | 11,124 | — | — | 510 | 11,639 |
| 1994 | — | 14,916 | — | — | 649 | 15,815 |
| 1993 | 7,554 | — | — | — | 626 | 8,935 |
| 1992 | 32,132 | — | — | — | 883 | 33,814 |
| 1991 | 47,340 | — | — | — | 300 | 47,945 |
| 1990 | 53,000 | — | — | — | 750 | 54,510 |
| 1989 | 20,000 | — | — | — | — | 20,500 |
| 1988 | 28,900 | — | — | — | — | 28,900 |
| 1987 | 300 | — | — | — | — | 300 |
▎ 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.