Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
WESTLAKE ROYAL STONE LLC - CHESTER
590 ECOLOGY LN, CHESTER, SC, 29706
Parent company: WESTLAKE CORP
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 | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) | ||||
| 2022 | 524 | 524 | ||||
| 2019 | 588 | 588 | ||||
| 2018 | 779 | 779 | ||||
| 2017 | 1,019 | 1,019 | ||||
| 2016 | 876 | 876 | ||||
| 2015 | 754 | 754 | ||||
| 2014 | 695 | 695 | ||||
| 2013 | 537 | 537 | ||||
| 2012 | 606 | 606 | ||||
| 2011 | 175 | 175 | ||||
| 2001 | 1 | 1 | ||||
▎ 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.