Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US DOE PORTSMOUTH GASEOUS DIFFUSION PLANT
3930 US RT 23 S, PIKETON, OH, 45661
Parent company: US DEPARTMENT OF ENERGY
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 | Dichlorotetrafluoroethane (CFC-114) | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,1,1-Trichloroethane | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Hydrogen fluoride | Total (lbs) |
| 2024 | — | 36,000 | — | — | 37 | 36,037 |
| 2023 | — | 30,000 | — | — | 36 | 30,036 |
| 2022 | — | 30,000 | — | — | 23 | 30,023 |
| 2021 | — | 28,000 | — | — | 1 | 28,001 |
| 2020 | — | 30,000 | — | — | 13 | 30,013 |
| 2019 | — | 34,000 | — | — | 36 | 34,036 |
| 2018 | — | 44,000 | — | — | 30 | 44,030 |
| 2017 | — | 36,000 | — | — | — | 36,000 |
| 2016 | — | 46,000 | — | — | 1 | 46,001 |
| 2015 | — | 26,000 | — | — | 9 | 26,009 |
| 2014 | — | 32,700 | — | — | 70 | 32,770 |
| 2013 | — | 27,600 | — | — | 55 | 27,655 |
| 2012 | — | 29,000 | — | — | 39 | 29,163 |
| 2011 | 6,000 | 31,000 | — | 32,000 | 3 | 103,438 |
| 2009 | — | 31 | — | — | — | 31 |
| 2008 | — | 626 | — | — | — | 626 |
| 2007 | — | 180 | — | — | — | 180 |
| 2006 | — | 48 | — | — | — | 49 |
| 2005 | — | 194 | — | — | — | 197 |
| 2004 | — | 65 | — | — | — | 68 |
| 2003 | — | 2,702 | — | — | — | 18,776 |
| 2002 | — | 5,826 | — | — | — | 21,958 |
| 1998 | — | — | — | — | — | 202 |
| 1997 | — | — | — | — | — | 188 |
| 1995 | — | — | — | — | 570 | 2,026 |
| 1994 | — | — | — | — | 1,600 | 1,841 |
| 1993 | 167,000 | — | — | — | — | 168,914 |
| 1992 | 249,000 | — | — | — | — | 254,978 |
| 1991 | 631,000 | — | 21,000 | — | — | 663,059 |
| 1990 | — | — | 9,800 | — | — | 51,395 |
| 1989 | — | — | 21,000 | — | 24,000 | 96,988 |
| 1988 | — | — | 64,541 | — | 28,200 | 122,404 |
| 1987 | — | — | — | 82,000 | 23,000 | 138,300 |
▎ 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.