Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MASTER HALCO
304 WYANOKE RD, WEST MEMPHIS, AR, 72301
Parent company: ITOCHU INTERNATIONAL INC
Carcinogen
PBT
— EPA classifications across all reporting years
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 | Styrene | Zinc compounds | Lead | Total (lbs) | ||
| 2024 | — | 193 | 1 | 194 | ||
| 2023 | — | 172 | 1 | 173 | ||
| 2022 | — | 175 | 1 | 176 | ||
| 2021 | — | 196 | 1 | 197 | ||
| 2020 | — | 206 | 1 | 207 | ||
| 2019 | — | — | 7 | 7 | ||
| 2018 | — | — | 7 | 7 | ||
| 2017 | — | — | 8 | 8 | ||
| 2016 | — | — | 6 | 6 | ||
| 2015 | — | — | 7 | 7 | ||
| 2014 | — | — | 7 | 7 | ||
| 2013 | — | — | 7 | 7 | ||
| 2012 | — | — | 8 | 8 | ||
| 2011 | — | — | 6 | 6 | ||
| 2010 | — | — | 7 | 7 | ||
| 2009 | — | — | 6 | 6 | ||
| 2008 | — | — | 7 | 7 | ||
| 2007 | — | — | 6 | 6 | ||
| 2004 | 3,658 | — | — | 3,658 | ||
| 2003 | 5,894 | — | — | 5,894 | ||
| 2002 | 138,506 | — | — | 138,506 | ||
| 2001 | 189,411 | — | — | 189,411 | ||
| 2000 | 120,206 | — | — | 120,206 | ||
| 1999 | 131,532 | — | — | 131,532 | ||
| 1998 | 62,918 | — | — | 62,918 | ||
| 1997 | 46,313 | — | — | 46,313 | ||
▎ 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.