Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
133 PR 3304, SONORA, TX, 76950
Parent company: AES DRILLING FLUIDS HOLDINGS LLC
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
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 | Methanol | Xylene (mixed isomers) | Toluene | Ethylene glycol | Certain glycol ethers | Total (lbs) |
| 2024 | 250 | 750 | 750 | 5 | 250 | 2,505 |
| 2023 | 750 | 750 | 750 | 250 | 250 | 3,250 |
| 2022 | 750 | 750 | 750 | 250 | 250 | 3,005 |
| 2021 | 750 | 750 | 750 | 250 | 250 | 3,005 |
| 2020 | 750 | 750 | 750 | — | — | 2,500 |
| 2019 | 750 | — | — | 250 | — | 1,000 |
| 2018 | 750 | — | — | 250 | 250 | 1,250 |
| 2017 | 10,000 | 690 | — | — | — | 10,690 |
| 2016 | 9,266 | 638 | 1,412 | — | — | 11,316 |
| 2015 | 11,855 | 803 | — | — | — | 12,658 |
| 2014 | 1,589 | — | — | 18 | — | 1,607 |
▎ 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.