Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
TREX - VIRGINIA MANUFACTURING OPERATIONS
3229 SHAWNEE DRIVE, WINCHESTER, VA, 22602
Parent company: TREX CO INC
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 | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Zinc compounds | Total (lbs) | ||
| 2024 | 12 | — | 0 | 12 | ||
| 2023 | 10 | — | 0 | 11 | ||
| 2022 | 15 | — | — | 15 | ||
| 2021 | — | 7 | — | 7 | ||
| 2020 | 1 | — | — | 1 | ||
| 2019 | 1 | — | — | 1 | ||
| 2018 | 0 | — | — | 0 | ||
▎ 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.