Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HYDRITE CHEMICAL CO.
2815 WCF&N DR, WATERLOO, IA, 50703
Parent company: HYDRITE CHEMICAL CO
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 | 1,1,1-Trichloroethane | Dichloromethane | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Methyl ethyl ketone | Total (lbs) |
| 2024 | 2 | — | — | — | — | 11 |
| 2023 | 938 | — | — | — | — | 964 |
| 2022 | 699 | — | — | — | — | 710 |
| 2021 | 808 | — | — | — | — | 816 |
| 2020 | 1,000 | — | — | — | — | 1,000 |
| 2019 | 137 | — | — | — | — | 137 |
| 2018 | 160 | — | — | — | — | 160 |
| 2017 | 860 | — | — | — | — | 860 |
| 2016 | 520 | — | — | — | — | 520 |
| 2015 | 6,540 | — | — | — | — | 6,540 |
| 2014 | 6,490 | — | — | — | — | 6,490 |
| 2013 | 2,900 | — | — | — | — | 2,900 |
| 2012 | 2,390 | — | — | — | — | 2,390 |
| 2011 | 2,380 | — | — | — | — | 2,380 |
| 2010 | 1,750 | — | — | — | — | 1,750 |
| 2009 | 2,000 | — | — | — | — | 2,000 |
| 2008 | 2,220 | — | — | — | — | 2,316 |
| 2007 | 3,380 | — | — | — | — | 3,491 |
| 2006 | 1,680 | — | — | — | — | 1,793 |
| 2005 | 1,010 | — | — | — | — | 1,113 |
| 2004 | 1,260 | — | — | — | — | 1,356 |
| 2003 | 1,050 | — | — | — | — | 1,050 |
| 2002 | 970 | — | — | — | — | 970 |
| 2001 | 990 | — | — | — | — | 990 |
| 2000 | 1,060 | — | — | — | — | 1,060 |
| 1999 | 635 | — | — | — | — | 635 |
| 1998 | 233 | — | — | — | — | 388 |
| 1997 | 112 | — | — | — | — | 123 |
| 1996 | 120 | — | — | — | — | 141 |
| 1995 | 94 | — | — | — | — | 196 |
| 1994 | 120 | — | — | 92 | — | 265 |
| 1993 | 270 | — | — | 117 | — | 433 |
| 1992 | 197 | — | — | 79 | — | 347 |
| 1991 | 329 | — | — | 67 | — | 464 |
| 1990 | 1,684 | 770 | — | 14 | 114 | 3,158 |
| 1989 | 2,092 | 1,103 | 601 | 515 | 698 | 6,786 |
| 1988 | — | — | 820 | 420 | 370 | 3,814 |
| 1987 | — | 3,780 | 830 | 770 | 520 | 7,140 |
▎ 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.