Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MMC MATERIALS INC - HATTIESBURG
1920 BYRON ST, HATTIESBURG, MS, 39402
Parent company: MMC MATERIALS 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 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | Lead | Lead compounds | Total (lbs) | ||
| 2024 | — | 1 | — | 1 | ||
| 2023 | — | 1 | — | 1 | ||
| 2022 | — | 1 | — | 1 | ||
| 2021 | — | 1 | — | 1 | ||
| 2020 | — | 1 | — | 1 | ||
| 2019 | — | 1 | — | 1 | ||
| 2017 | — | — | 0 | 0 | ||
| 2016 | — | — | 0 | 0 | ||
| 2015 | — | — | 0 | 0 | ||
| 2014 | 16 | — | 0 | 16 | ||
▎ 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.