Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US ARMY CORPS OF ENGINEERS MCMILLAN WTP WASHINGTON AQUEDUC
2500 FIRST ST NW, WASHINGTON, DC, 20001
Parent company: US DEPARTMENT OF DEFENSE
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 | Manganese compounds | Copper compounds | Manganese And Manganese Compounds | Copper And Copper Compounds | Chlorine | Total (lbs) |
| 2024 | — | — | 14,615 | 4,221 | — | 18,919 |
| 2023 | 4,177 | 8,672 | — | — | — | 12,918 |
| 2022 | 1,588 | 7,407 | — | — | — | 9,058 |
| 2021 | 7,567 | 9,512 | — | — | — | 17,152 |
| 2020 | 5,507 | 9,732 | — | — | — | 15,306 |
| 2019 | 6,821 | — | — | 10,612 | — | 17,503 |
| 2018 | — | — | 12,027 | 10,103 | — | 22,188 |
| 2017 | 10,729 | 9,791 | — | — | — | 20,585 |
| 2016 | 9,613 | 9,803 | — | — | — | 19,484 |
| 2015 | 12,079 | 8,162 | — | — | — | 20,313 |
| 2014 | 10,590 | 7,507 | — | — | — | 18,166 |
| 2013 | 2,285 | 5,021 | — | — | — | 7,384 |
| 2012 | 10,796 | 4,687 | — | — | 618 | 16,181 |
| 2011 | 20,338 | 7,414 | — | — | 420 | 28,247 |
| 2010 | 10,913 | 9,761 | — | — | 415 | 21,145 |
| 2009 | 7,892 | 10,729 | — | — | 393 | 19,090 |
| 2008 | 55,100 | 7,973 | — | — | 416 | 63,564 |
| 2007 | 15,891 | 9,214 | — | — | 364 | 25,538 |
| 2006 | 7,512 | 8,265 | — | — | 402 | 16,272 |
| 2005 | 14,770 | 5,056 | — | — | 405 | 20,325 |
| 2004 | 2,300 | 764 | — | — | 1,200 | 4,345 |
| 2003 | 1,797 | 1,897 | — | — | 1,400 | 5,178 |
| 2002 | — | 1,350 | — | — | 1,230 | 2,643 |
| 2001 | 2,600 | 4,600 | — | — | — | 7,200 |
| 2000 | 4,068 | 3,020 | — | — | — | 7,088 |
| 1999 | 10 | 1 | — | — | — | 11 |
| 1998 | — | 5,500 | — | — | 1,200 | 6,700 |
| 1997 | — | 2,400 | — | — | 1,505 | 3,905 |
| 1996 | — | 5,000 | — | — | 1,405 | 6,405 |
| 1995 | — | 19,000 | — | — | 1,305 | 20,305 |
| 1994 | — | 17,300 | — | — | 1,455 | 18,755 |
▎ 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.