Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
COLONIAL METALS INC
505 BLUE BALL RD, ELKTON, MD, 21921
Parent company: AMES GOLDSMITH
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Chlorine | Nickel compounds | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total |
|---|---|---|---|---|
| 2024 | 10 | — | — | 10 |
| 2023 | 3 | — | — | 3 |
| 2022 | 3 | — | — | 3 |
| 2021 | 2 | — | — | 2 |
| 2020 | 6 | 2 | — | 8 |
| 2019 | 4 | — | — | 4 |
| 2018 | 4 | 2 | — | 6 |
| 2017 | 10 | 10 | — | 20 |
| 2016 | 255 | 10 | — | 265 |
| 2015 | 255 | 10 | — | 265 |
| 2014 | 255 | 10 | — | 265 |
| 2013 | 255 | 10 | — | 265 |
| 2012 | 255 | 10 | — | 265 |
| 2011 | 255 | 10 | — | 265 |
| 2010 | 255 | 10 | — | 265 |
| 2009 | 255 | — | — | 255 |
| 2007 | 255 | — | — | 255 |
| 2006 | 255 | — | — | 255 |
| 2005 | 255 | — | — | 255 |
| 2004 | 260 | — | — | 260 |
| 2003 | 10 | — | — | 10 |
| 2002 | 255 | — | — | 255 |
| 2001 | 505 | — | — | 505 |
| 2000 | 500 | — | — | 500 |
| 1999 | 500 | — | — | 500 |
| 1998 | 500 | — | — | 500 |
| 1997 | 755 | — | — | 755 |
| 1996 | 1,150 | — | — | 1,150 |
| 1995 | 1,850 | — | 5 | 1,855 |
| 1994 | 1,550 | — | 5 | 1,555 |
| 1992 | 5,350 | — | 5 | 5,355 |