Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NALCO CO
125 NALCO WAY/RT 65, ELLWOOD CITY, PA, 16117
Parent company: ECOLAB 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 | Acrylic acid | Acrylamide | Ammonia | Formaldehyde | Methanol | Total (lbs) |
| 2024 | 72 | 0 | — | — | — | 72 |
| 2023 | 14 | 0 | — | — | — | 15 |
| 2022 | 857 | — | 651 | — | — | 1,522 |
| 2021 | 243 | 0 | 500 | — | — | 744 |
| 2020 | 165 | — | 665 | — | — | 831 |
| 2019 | 114 | — | 665 | — | — | 779 |
| 2018 | 253 | 0 | — | — | — | 253 |
| 2017 | 3,073 | — | — | — | — | 3,073 |
| 2016 | 210 | 0 | — | — | — | 211 |
| 2015 | 215 | — | — | — | — | 216 |
| 2014 | 31 | — | — | — | — | 127 |
| 2013 | 199 | — | 16 | — | — | 216 |
| 2012 | 186 | — | 60 | — | — | 247 |
| 2011 | 186 | — | 27 | — | — | 213 |
| 2010 | 178 | — | 32 | — | — | 210 |
| 2009 | 162 | — | — | — | — | 163 |
| 2008 | 183 | — | 9 | — | — | 198 |
| 2007 | 160 | — | — | — | 9 | 173 |
| 2006 | 188 | — | — | — | — | 191 |
| 2005 | 775 | 0 | — | — | 35 | 814 |
| 2004 | 447 | 2,728 | — | — | — | 3,175 |
| 2003 | 411 | 3,453 | — | — | — | 3,865 |
| 2002 | 424 | 2,172 | — | — | — | 2,596 |
| 2001 | 357 | 1,220 | — | — | — | 1,577 |
| 2000 | 287 | 136 | — | — | — | 423 |
| 1999 | 277 | 132 | — | — | — | 409 |
| 1998 | 277 | 131 | — | — | — | 408 |
| 1997 | 277 | 133 | — | — | — | 410 |
| 1996 | 277 | 131 | — | — | — | 408 |
| 1995 | 278 | 131 | — | — | — | 409 |
| 1994 | 278 | 131 | — | — | — | 410 |
| 1993 | 373 | 131 | — | — | — | 505 |
| 1992 | 373 | 360 | — | 71 | 11 | 816 |
| 1991 | 236 | 310 | — | 71 | 11 | 629 |
| 1990 | 301 | 314 | — | 46 | 45 | 707 |
| 1989 | 260 | 371 | — | 46 | — | 678 |
| 1988 | — | 455 | — | — | — | 455 |
▎ 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.