Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
ALCOA INC
FM 1786 OFF RT 79, ROCKDALE, TX, 76567
Parent company: ALCOA 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 | Hydrogen fluoride | Carbonyl sulfide | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Aluminum (fume or dust) | Manganese compounds | Total (lbs) |
| 2014 | — | — | — | 62,416 | — | 62,416 |
| 2013 | — | — | — | 133,398 | — | 133,398 |
| 2012 | — | — | — | 159,422 | — | 159,422 |
| 2011 | — | — | — | 353,000 | — | 353,000 |
| 2010 | — | — | — | 264,000 | — | 264,000 |
| 2009 | — | — | — | 177,275 | — | 180,854 |
| 2008 | 168,200 | 565,107 | — | 227,218 | — | 1,008,987 |
| 2007 | 309,598 | 587,809 | — | 270,245 | — | 1,185,271 |
| 2006 | 300,065 | 529,236 | 467,718 | 43,305 | 324,210 | 2,260,495 |
| 2005 | 128,284 | 608,465 | 486,024 | 51,979 | 336,899 | 2,231,331 |
| 2004 | 260,804 | 635,398 | 512,712 | 166,972 | 349,899 | 2,592,682 |
| 2003 | 339,411 | 576,481 | 466,378 | 169,367 | 317,781 | 2,498,005 |
| 2002 | 337,511 | 563,449 | 469,619 | 162,696 | 315,490 | 2,476,581 |
| 2001 | 411,861 | 685,532 | 403,621 | 38,172 | 267,485 | 2,405,140 |
| 2000 | 642,000 | 705,000 | 467,375 | 38,691 | 314,140 | 2,822,276 |
| 1999 | 562,000 | 737,400 | 537,665 | 36,655 | 311,405 | 2,530,050 |
| 1998 | 422,900 | 702,100 | 454,905 | 35,729 | — | 2,181,988 |
| 1997 | 369,000 | 713,000 | 614,305 | 33,005 | — | 2,235,014 |
| 1996 | 511,000 | 675,100 | — | 29,050 | — | 1,908,875 |
| 1995 | 328,399 | 545,844 | — | 28,636 | — | 914,029 |
| 1994 | 398,691 | 742,913 | — | 28,470 | — | 1,177,274 |
| 1993 | 730,773 | — | — | 24,512 | — | 780,927 |
| 1992 | 917,338 | — | — | 26,150 | — | 978,813 |
| 1991 | 1,113,249 | — | — | 22,784 | — | 1,214,510 |
| 1990 | 1,305,634 | — | — | 24,050 | — | 1,440,839 |
| 1989 | 1,311,149 | — | — | 23,250 | — | 1,448,233 |
| 1988 | — | — | — | 27,250 | — | 54,000 |
▎ 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.