Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
VALERO REFINING - TEXAS L.P. HOUSTON REFINERY
9701 MANCHESTER, HOUSTON, TX, 77012
Parent company: VALERO ENERGY 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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Propylene | Hydrogen cyanide | Toluene | Xylene (mixed isomers) | Total (lbs) |
| 2024 | 2,051,661 | 3,529 | 103,731 | 6,122 | 4,353 | 2,220,296 |
| 2023 | 1,962,354 | 4,892 | 72,051 | 3,177 | 1,467 | 2,076,166 |
| 2022 | 2,057,066 | 3,801 | 68,201 | 3,080 | 1,459 | 2,166,323 |
| 2021 | 1,844,037 | 7,637 | 64,080 | 3,510 | 1,736 | 1,959,564 |
| 2020 | 1,752,891 | 3,174 | 71,493 | 4,094 | 2,707 | 1,878,212 |
| 2019 | 1,191,331 | 9,885 | 59,154 | 4,821 | 2,436 | 1,307,001 |
| 2018 | 950,000 | 9,003 | — | 5,351 | 4,510 | 1,015,363 |
| 2017 | 236,983 | 4,030 | 85,184 | 7,667 | 6,799 | 392,348 |
| 2016 | 238,210 | 3,884 | 256,980 | 5,072 | 4,121 | 577,760 |
| 2015 | 357,367 | 2,199 | 316,340 | 10,439 | 7,689 | 787,655 |
| 2014 | 374,267 | 1,223 | 310,800 | 8,041 | 7,335 | 793,304 |
| 2013 | 283,908 | 1,540 | 296,324 | 14,010 | 13,048 | 710,268 |
| 2012 | 233,202 | 4,461 | 538 | 8,145 | 7,321 | 347,836 |
| 2011 | 260,465 | 4,735 | 721 | 10,632 | 9,037 | 413,312 |
| 2010 | 235,280 | 3,863 | 707 | 6,294 | 6,218 | 358,043 |
| 2009 | 195,767 | 3,121 | 708 | 17,030 | 6,436 | 325,836 |
| 2008 | 155,909 | 6,679 | 106 | 29,958 | 21,650 | 287,949 |
| 2007 | 184,232 | 19,881 | 141 | 43,099 | 30,695 | 510,753 |
| 2006 | 427,146 | 20,725 | 3,332 | 29,361 | 14,122 | 635,595 |
| 2005 | 354,511 | 50,389 | 590 | 15,385 | 17,382 | 621,961 |
| 2004 | 477,236 | 18,672 | — | 5,953 | 6,153 | 641,503 |
| 2003 | 409,346 | 56,669 | — | 21,187 | 21,700 | 735,602 |
| 2002 | 347,793 | 34,978 | — | 15,736 | 14,261 | 585,601 |
| 2001 | 336,778 | 41,910 | — | 19,480 | 21,260 | 597,716 |
| 2000 | 458,210 | 56,596 | — | 22,183 | 16,555 | 801,662 |
| 1999 | 276,983 | 62,209 | — | 11,414 | 24,516 | 531,510 |
| 1998 | 234,271 | 46,445 | — | 10,449 | 21,238 | 411,445 |
| 1997 | 166,395 | 60,275 | — | 17,624 | 48,937 | 455,633 |
| 1996 | 299,098 | 183,544 | — | 93,858 | 97,537 | 1,066,088 |
| 1995 | 130,495 | 188,241 | — | 136,583 | 155,139 | 1,023,920 |
| 1994 | — | 950,007 | — | 224,345 | 181,007 | 1,884,022 |
| 1993 | — | 341,862 | — | 136,291 | 103,338 | 897,387 |
| 1992 | — | 17,142 | — | 137,908 | 108,868 | 532,831 |
| 1991 | — | 16,257 | — | 86,268 | 76,440 | 462,025 |
| 1990 | — | 14,824 | — | 49,285 | 25,532 | 358,862 |
| 1989 | — | 14,797 | — | 103,561 | 42,195 | 330,933 |
| 1988 | — | 8,571 | — | 122,666 | — | 162,595 |
| 1987 | — | — | — | 62,208 | — | 87,627 |
▎ 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.