Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
THE SAN ANTONIO REFINERY LLC
7811 S PRESA ST, SAN ANTONIO, TX, 78223
Parent company: ALLEGIANCE REFINING LLC
Carcinogen
— 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 | Toluene | Benzene | Xylene (mixed isomers) | Cyclohexane | n-Hexane | Total (lbs) |
| 2024 | 8,677 | 2,302 | 4,898 | 1,794 | 5,895 | 27,555 |
| 2023 | 9,305 | 2,504 | 5,160 | 1,760 | 7,153 | 30,167 |
| 2022 | 11,685 | 2,763 | 7,065 | 2,461 | 6,324 | 35,351 |
| 2021 | 6,443 | 1,653 | 3,808 | 1,232 | 5,694 | 22,236 |
| 2020 | 17,230 | 5,388 | 9,724 | 0 | 4,481 | 43,519 |
| 2019 | 2,095 | 759 | 916 | 208 | 4,039 | 11,877 |
| 2018 | 2,839 | 679 | 1,377 | 320 | 4,093 | 13,626 |
| 2017 | 2,058 | 519 | 1,095 | 237 | 3,689 | 10,124 |
| 2016 | 3,518 | 1,384 | 1,925 | 1,054 | 4,315 | 16,892 |
| 2015 | 2,653 | 1,135 | 1,525 | 402 | 5,748 | 13,844 |
| 2014 | 5,127 | 1,967 | 3,172 | 792 | 7,619 | 21,741 |
| 2013 | 16,216 | 6,195 | 5,428 | 5,206 | 33,810 | 74,175 |
| 2012 | 13,137 | 4,173 | 4,084 | 3,648 | — | 30,022 |
| 2011 | 13,006 | 4,273 | 4,288 | 1,059 | — | 27,860 |
| 2010 | 8,217 | 3,240 | 7,635 | 497 | — | 25,545 |
| 2009 | 43,269 | 11,884 | 61,776 | 3,839 | 2,201 | 145,846 |
| 2008 | 12,664 | 4,260 | 11,946 | 3,661 | 2,102 | 47,484 |
| 2007 | 1,000 | 1,250 | — | — | — | 3,250 |
| 2006 | 1,000 | 1,250 | — | — | — | 3,250 |
| 2005 | — | 2,232 | — | — | — | 2,232 |
| 2004 | 750 | 505 | — | — | — | 1,255 |
| 2003 | 750 | 500 | 750 | — | — | 2,250 |
| 2002 | 750 | 500 | 750 | — | — | 2,250 |
| 2001 | 1,500 | 500 | 1,500 | — | — | 3,750 |
| 2000 | 500 | 500 | 500 | — | — | 2,570 |
| 1999 | 7,104 | 966 | 7,764 | — | — | 16,904 |
| 1998 | 7,104 | 966 | 7,764 | — | — | 16,994 |
| 1997 | 5,860 | 805 | 6,332 | — | — | 13,937 |
| 1996 | 3,524 | 310 | 1,508 | — | — | 5,542 |
| 1995 | 4,092 | 420 | 2,550 | — | — | 8,523 |
| 1994 | 4,265 | 1,000 | 3,624 | — | — | 9,476 |
| 1993 | 14,875 | 16,070 | 7,908 | — | — | 40,616 |
| 1992 | 34,105 | 5,905 | 14,305 | — | — | 63,190 |
| 1991 | 19,500 | 35,300 | 6,350 | 48,000 | — | 112,660 |
| 1990 | 28,200 | 52,000 | 9,150 | 71,400 | — | 164,610 |
| 1989 | 28,394 | 51,941 | 9,126 | 70,855 | — | 163,689 |
| 1988 | 11,507 | — | 5,714 | — | — | 18,812 |
▎ 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.