Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SONGWON INTERNATIONAL AMERICAS INC. - LA PORTE
102 OLD UNDERWOOD RD, LA PORTE, TX, 77571
Parent company: NA
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 | Zinc compounds | Total (lbs) | ||||
| 2024 | 425 | 425 | ||||
| 2023 | 729 | 729 | ||||
| 2022 | 296 | 296 | ||||
| 2021 | 276 | 276 | ||||
| 2020 | 103 | 103 | ||||
| 2019 | 1,933 | 1,933 | ||||
| 2018 | 529 | 529 | ||||
| 2017 | 163 | 163 | ||||
| 2016 | 235 | 235 | ||||
▎ 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.