Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
INGALLS SHIPBUILDING PASCAGOULA OPERATIONS
1000 JERRY ST PE` HWY, PASCAGOULA, MS, 39568
Parent company: HUNTINGTON INGALLS INDUSTRIES INC
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 | n-Butyl alcohol | Xylene (mixed isomers) | 1,2,4-Trimethylbenzene | Toluene | Methanol | Total (lbs) |
| 2024 | 47,763 | 21,039 | 27,241 | — | 28,045 | 161,093 |
| 2023 | 49,155 | 19,805 | 24,589 | — | 42,090 | 160,547 |
| 2022 | 55,771 | 9,914 | — | — | 32,469 | 112,344 |
| 2021 | 46,708 | 19,997 | 25,107 | — | 32,579 | 156,566 |
| 2020 | 51,432 | 14,092 | — | — | 26,640 | 114,882 |
| 2019 | 46,561 | 16,999 | 26,287 | — | — | 120,790 |
| 2018 | 49,768 | — | 23,007 | — | — | 91,338 |
| 2017 | 73,081 | 22,673 | 42,941 | — | — | 171,529 |
| 2016 | 71,919 | 20,795 | 34,393 | — | 26,632 | 179,980 |
| 2015 | 73,275 | 33,234 | 36,241 | — | 5,620 | 184,495 |
| 2014 | 4,692 | 32,397 | 20,075 | — | 5,620 | 95,379 |
| 2013 | 99,906 | 16,492 | 40,160 | — | — | 175,970 |
| 2012 | 79,308 | — | 38,370 | — | — | 136,774 |
| 2011 | 113,598 | 12,993 | 60,357 | — | 3,981 | 207,278 |
| 2010 | 94,620 | 8,236 | 44,507 | — | 1,128 | 186,472 |
| 2009 | 77,160 | 14,730 | 41,721 | — | 1,853 | 165,311 |
| 2008 | 53,939 | 9,252 | 31,339 | — | 1,128 | 110,919 |
| 2007 | 88,914 | 3,094 | 35,251 | — | 1,115 | 141,195 |
| 2006 | 10,751 | 5,457 | 4,624 | — | — | 54,668 |
| 2005 | 82,393 | 15,232 | 32,473 | — | — | 149,585 |
| 2004 | 105,641 | 24,631 | 74,614 | — | 6,616 | 254,067 |
| 2003 | 88,996 | 37,513 | 27,676 | — | 11,800 | 230,710 |
| 2002 | 180,342 | 14,020 | 52,098 | — | 18,797 | 308,734 |
| 2001 | 211,163 | 32,612 | 64,201 | — | 34,034 | 392,876 |
| 2000 | 132,388 | 36,510 | 57,209 | — | — | 249,171 |
| 1999 | 176,690 | 17,315 | 59,450 | 14,780 | — | 285,284 |
| 1998 | 100,775 | 22,480 | 31,125 | 34,320 | — | 209,335 |
| 1997 | 116,500 | 22,950 | 35,100 | 27,770 | — | 222,520 |
| 1996 | 228,000 | 40,500 | 67,000 | 35,000 | — | 391,000 |
| 1995 | 360,000 | 166,000 | 104,000 | 64,000 | — | 723,560 |
| 1994 | 360,000 | 166,000 | 130,000 | 76,000 | — | 781,310 |
| 1993 | 420,000 | 149,000 | — | 45,000 | — | 688,540 |
| 1992 | 434,000 | 176,000 | — | 52,000 | — | 723,360 |
| 1991 | 418,500 | 182,000 | — | 72,200 | — | 723,760 |
| 1990 | 328,000 | 9,000 | — | 99,700 | — | 547,061 |
| 1989 | 400,000 | 8,600 | — | 52,300 | — | 629,050 |
| 1988 | — | — | — | 13,000 | — | 305,500 |
▎ 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.