Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
NNSA Y-12 NATIONAL SECURITY COMPLEX
BEAR CREEK RD, OAK RIDGE, TN, 37830
Parent company: US DEPARTMENT OF ENERGY
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 | Methanol | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Lead compounds | Freon 113 (CFC-113) | Total (lbs) |
| 2024 | — | — | — | — | — | 1,741 |
| 2023 | — | — | — | — | — | 1,139 |
| 2022 | 30,561 | — | — | — | — | 33,757 |
| 2021 | 15,321 | — | — | — | — | 18,727 |
| 2020 | 5,440 | — | — | — | — | 27,075 |
| 2019 | 25,945 | — | — | — | — | 40,783 |
| 2018 | 47,328 | — | — | — | — | 62,752 |
| 2017 | 28,201 | — | — | 2,154 | — | 37,190 |
| 2016 | 35,072 | — | — | 3,575 | — | 50,907 |
| 2015 | 14,669 | — | — | 7,881 | — | 30,099 |
| 2014 | 19,373 | — | — | 11,928 | — | 37,316 |
| 2013 | 21,857 | — | — | 6,150 | — | 40,185 |
| 2012 | 11,800 | — | — | 3,887 | — | 38,094 |
| 2011 | 27,485 | — | — | 2,066 | — | 38,852 |
| 2010 | 52,678 | — | — | 11,146 | — | 68,066 |
| 2009 | 92,000 | — | 46,000 | 11,134 | — | 152,519 |
| 2008 | 33,000 | — | 45,000 | 9,491 | — | 91,516 |
| 2007 | 36,166 | — | 41,000 | 6,727 | — | 85,919 |
| 2006 | 140,840 | — | 52,000 | 8,781 | — | 201,648 |
| 2005 | 34,037 | — | 52,000 | 8,956 | — | 98,634 |
| 2004 | 56,000 | 110,000 | 48,000 | 9,526 | 14,000 | 252,423 |
| 2003 | 77,000 | 116,899 | 58,982 | 5,769 | 32,000 | 314,623 |
| 2002 | 65,340 | 120,574 | 62,201 | 8,448 | 16,604 | 278,620 |
| 2001 | 22,209 | 102,332 | 44,221 | 4,252 | 16,530 | 192,174 |
| 2000 | 59,420 | 132,882 | 52,917 | — | 17,778 | 269,370 |
| 1999 | 30,525 | 138,595 | 53,283 | — | — | 226,976 |
| 1998 | 43,725 | 96,101 | — | — | — | 141,960 |
| 1997 | 32,405 | 98,100 | — | — | — | 132,310 |
| 1996 | 27,630 | 755 | — | — | — | 28,979 |
| 1995 | 36,250 | 1,000 | — | — | — | 38,180 |
| 1994 | 39,000 | 1,000 | — | — | — | 72,350 |
| 1993 | 47,000 | 3,150 | 255 | — | — | 74,005 |
▎ 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.