Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US GYPSUM
HWY 51A, SOUTHARD, OK, 73770
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 | Lead compounds | Lead | Lead And Lead Compounds | Mercury compounds | Mercury | Total (lbs) |
| 2024 | 47 | — | — | 4 | — | 52 |
| 2023 | 37 | — | — | 5 | — | 42 |
| 2021 | — | — | 43 | 5 | — | 48 |
| 2020 | — | — | 0 | — | — | 0 |
| 2019 | — | — | 98 | — | — | 105 |
| 2018 | 48 | — | — | 12 | — | 60 |
| 2017 | 54 | — | — | 17 | — | 71 |
| 2016 | 56 | — | — | 17 | — | 72 |
| 2015 | 13 | — | — | 20 | — | 33 |
| 2014 | 18 | 18 | — | 17 | 17 | 71 |
| 2013 | — | 9 | — | — | 0 | 9 |
| 2012 | — | 9 | — | — | 0 | 9 |
| 2011 | — | 11 | — | — | 0 | 11 |
| 2010 | — | 10 | — | — | 0 | 10 |
| 2009 | — | 25 | — | — | 0 | 26 |
| 2008 | — | 16 | — | — | 2 | 18 |
| 2007 | — | 19 | — | — | 1 | 20 |
| 2006 | — | 19 | — | — | 1 | 20 |
| 2005 | — | 19 | — | — | 1 | 20 |
| 2004 | — | 19 | — | — | 1 | 20 |
| 2000 | — | — | — | — | 2 | 2 |
▎ 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.