Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALLEGANY BALLISTICS LAB (NIROP)
210 WV STATE RT 956, ROCKET CENTER, WV, 26726
Parent company: NORTHROP GRUMMAN 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 | Dichloromethane | Acetone | Aluminum (fume or dust) | Freon 113 (CFC-113) | 1,1,1-Trichloroethane | Total (lbs) |
| 2024 | 1,645 | — | 30,435 | — | — | 37,660 |
| 2023 | 2,172 | — | 37,519 | — | — | 44,431 |
| 2022 | 3,904 | — | 23,090 | — | — | 31,365 |
| 2021 | 4,143 | — | 22,625 | — | — | 31,145 |
| 2020 | 3,590 | — | 24,869 | — | — | 33,175 |
| 2019 | 2,500 | — | 9,839 | — | — | 14,052 |
| 2018 | 2,870 | — | 4,090 | — | — | 8,025 |
| 2017 | 2,350 | — | — | — | — | 3,306 |
| 2016 | 3,735 | — | — | — | — | 4,262 |
| 2015 | 3,205 | — | — | — | — | 3,761 |
| 2014 | 2,040 | — | — | — | — | 2,789 |
| 2013 | 3,535 | — | — | — | — | 4,371 |
| 2012 | 3,145 | — | 2,650 | — | — | 6,865 |
| 2011 | 1,075 | — | — | — | — | 1,612 |
| 2010 | 1,710 | — | — | — | — | 2,126 |
| 2009 | 2,800 | — | 3,210 | — | — | 6,671 |
| 2008 | 2,140 | — | — | — | — | 2,500 |
| 2007 | 395 | — | — | — | — | 869 |
| 2006 | 530 | — | — | — | — | 961 |
| 2005 | 625 | — | — | — | — | 1,134 |
| 2004 | 1,455 | — | — | — | — | 2,051 |
| 2003 | 2,595 | — | — | — | — | 3,211 |
| 2002 | 3,390 | — | — | — | — | 3,937 |
| 2001 | 2,900 | — | — | — | — | 3,577 |
| 2000 | 1,535 | — | — | — | — | 1,775 |
| 1999 | 9,195 | — | — | — | — | 9,195 |
| 1998 | 11,965 | — | — | — | — | 11,965 |
| 1997 | 14,855 | — | — | — | — | 14,855 |
| 1996 | 9,845 | — | — | — | — | 35,440 |
| 1995 | 10,685 | — | — | — | 8,635 | 55,300 |
| 1994 | 15,645 | — | — | — | 10,785 | 26,430 |
| 1993 | 24,055 | 72,875 | — | 13,220 | 27,095 | 137,245 |
| 1992 | 114,700 | 95,505 | — | 29,300 | 25,100 | 285,805 |
| 1991 | 252,450 | 83,100 | 11,200 | 33,000 | 45,450 | 467,150 |
| 1990 | 377,550 | 62,700 | 21,900 | 34,400 | 33,900 | 606,800 |
| 1989 | 370,800 | 70,100 | 15,960 | 19,400 | — | 542,460 |
| 1988 | 444,000 | 59,200 | — | 23,200 | — | 526,400 |
| 1987 | 310,000 | 2,200 | — | — | — | 312,200 |
▎ 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.