Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
SEWARD PLANT
11729 HIGHWAY 29, LIBERTY HILL, TX, 78642
Parent company: OLDCASTLE MATERIALS INC
Carcinogen
PBT
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Polycyclic aromatic compounds | Lead | Benzo[g,h,i]perylene | Total |
|---|---|---|---|---|---|
| 2024 | — | 1 | — | 0 | 1 |
| 2023 | — | 1 | — | 0 | 1 |
| 2022 | — | 1 | — | 0 | 1 |
| 2021 | — | 1 | — | 0 | 1 |
| 2020 | 395 | 1 | — | 0 | 396 |
| 2019 | 312 | 1 | — | 0 | 313 |
| 2018 | 807 | 1 | — | 0 | 808 |
| 2017 | 610 | 1 | — | 0 | 611 |
| 2016 | 629 | 1 | — | 0 | 630 |
| 2015 | — | 1 | 0 | 0 | 1 |