Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
CLEAN HARBORS SAN LEON INC
2700 AVE S, SAN LEON, TX, 77539
Parent company: CLEAN HARBORS 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 | Barium | Xylene (mixed isomers) | Arsenic | Ethylbenzene | Toluene | Total (lbs) |
| 2024 | — | 2 | — | — | 7 | 472 |
| 2023 | — | 5 | — | — | 250 | 1,515 |
| 2022 | — | 10 | — | — | 10 | 550 |
| 2021 | — | 15 | — | 10 | 505 | 1,427 |
| 2020 | — | 8 | — | 15 | 260 | 333 |
| 2019 | — | 255 | — | 6 | 1,505 | 4,361 |
| 2018 | — | 473 | — | — | 285 | 1,885 |
| 2017 | — | — | — | — | — | 45 |
| 2016 | — | 15 | 5 | — | 256 | 648 |
| 2015 | — | 10 | 5 | — | 255 | 332 |
| 2014 | — | — | — | — | 15 | 549 |
| 2013 | — | — | 0 | — | 17 | 1,843 |
| 2012 | — | 263 | — | 5 | 32 | 2,118 |
| 2011 | — | 115 | 16,380 | 44 | 52 | 18,817 |
| 2010 | — | 255 | — | 4,661 | 2,097 | 8,518 |
| 2009 | — | 255 | — | 4,653 | 2,097 | 8,510 |
| 2008 | — | 1,974 | — | 4,659 | 2,097 | 10,235 |
| 2007 | 5 | 546 | — | 166 | 309 | 1,918 |
| 2005 | — | — | — | — | — | 255 |
| 2004 | 49,345 | — | — | 255 | — | 49,855 |
| 2003 | — | — | — | 5 | — | 260 |
| 2002 | — | 505 | — | 260 | 500 | 1,770 |
| 2001 | 5 | 3,100 | — | 250 | 150 | 4,005 |
| 2000 | 5 | 3,000 | — | 250 | 150 | 3,660 |
| 1999 | — | 3,000 | — | 250 | 150 | 3,400 |
| 1998 | — | 3,000 | — | 250 | 105 | 3,355 |
▎ 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.