Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
KOPPERS INC (DENVER CO)
465 W 56TH AVE, DENVER, CO, 80216
Parent company: KOPPERS INC
Carcinogen
PBT
— 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 | Creosote | Naphthalene | Dibenzofuran | Polycyclic aromatic compounds | Anthracene | Total (lbs) |
| 2020 | 2,090 | — | — | 4 | — | 2,094 |
| 2019 | 2,900 | — | — | 5 | — | 2,905 |
| 2018 | 3,000 | — | — | 6 | — | 3,006 |
| 2017 | 2,800 | — | — | 5 | — | 2,805 |
| 2016 | 3,000 | — | — | 6 | — | 3,006 |
| 2015 | 2,230 | — | — | 5 | — | 2,235 |
| 2014 | 2,000 | — | — | 4 | — | 2,004 |
| 2013 | 2,040 | — | — | 4 | — | 2,044 |
| 2012 | 1,830 | — | — | 4 | — | 1,834 |
| 2011 | 2,330 | — | — | 6 | — | 2,336 |
| 2010 | 1,820 | — | — | 4 | — | 1,824 |
| 2009 | 4,900 | — | — | 4 | — | 4,904 |
| 2008 | 5,100 | — | — | 4 | — | 5,104 |
| 2007 | 4,212 | — | — | 5 | — | 4,217 |
| 2006 | 6,410 | — | — | 8 | — | 6,418 |
| 2005 | 7,612 | — | — | 8 | — | 7,620 |
| 2004 | 6,905 | — | — | 6 | — | 6,911 |
| 2003 | 7,205 | — | — | 7 | — | 7,212 |
| 2002 | 6,901 | — | — | 7 | — | 6,908 |
| 2001 | 6,606 | — | — | 7 | — | 6,613 |
| 2000 | 7,209 | — | — | 100 | — | 7,309 |
| 1999 | 8,851 | — | — | — | — | 8,851 |
| 1998 | 10,273 | — | — | — | — | 10,280 |
| 1997 | 5,803 | — | — | — | — | 5,803 |
| 1996 | 6,690 | — | — | — | — | 6,690 |
| 1995 | 7,100 | — | — | — | — | 7,100 |
| 1994 | 9,500 | — | — | — | — | 9,500 |
| 1993 | 9,500 | — | — | — | — | 9,500 |
| 1992 | 9,500 | — | — | — | — | 9,500 |
| 1991 | 5,060 | — | — | — | — | 5,060 |
| 1990 | 5,345 | — | — | — | — | 5,345 |
| 1989 | — | 1,550 | 262 | — | 190 | 2,002 |
▎ 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.