Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US GYPSUM CO
5500 QUARANTINE RD, BALTIMORE, MD, 21226
Parent company: USG CORP
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 | Mercury compounds | Mercury And Mercury Compounds | Lead | Lead compounds | Lead And Lead Compounds | Total (lbs) |
| 2024 | — | 45 | — | — | 0 | 45 |
| 2023 | 56 | — | — | 0 | — | 56 |
| 2022 | 47 | — | — | 0 | — | 47 |
| 2021 | — | 44 | — | — | 0 | 44 |
| 2020 | — | 38 | — | — | 0 | 38 |
| 2019 | 42 | — | — | 0 | — | 42 |
| 2018 | 37 | — | — | 0 | — | 37 |
| 2017 | 34 | — | — | 1 | — | 35 |
| 2016 | 31 | — | — | 0 | — | 31 |
| 2015 | 31 | — | — | 0 | — | 31 |
| 2014 | — | — | — | 0 | — | 0 |
| 2013 | — | — | 0 | — | — | 0 |
| 2012 | — | — | 0 | — | — | 0 |
| 2011 | — | — | 0 | — | — | 0 |
| 2010 | — | — | 0 | — | — | 1 |
| 2009 | — | — | 0 | — | — | 0 |
| 2008 | — | — | 0 | — | — | 0 |
| 2007 | — | — | 0 | — | — | 0 |
| 2006 | — | — | 1 | — | — | 1 |
| 2005 | — | — | 1 | — | — | 1 |
| 2004 | — | — | 1 | — | — | 1 |
| 2003 | — | — | 1 | — | — | 1 |
| 2002 | — | — | 1 | — | — | 1 |
| 2001 | — | — | 1 | — | — | 1 |
▎ 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.