Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HAMILTON SAFE INC-MASON
755 READING RD, MASON, OH, 45040
Parent company: HAMILTON SAFE 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 | Total (lbs) | ||||
| 2021 | 142 | 142 | ||||
| 2020 | 155 | 155 | ||||
| 2019 | 147 | 147 | ||||
| 2018 | 252 | 252 | ||||
| 2017 | 252 | 252 | ||||
| 2016 | 237 | 237 | ||||
| 2015 | 233 | 233 | ||||
| 2014 | 233 | 233 | ||||
| 2013 | 250 | 250 | ||||
▎ 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.