Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
DIAMOND MANUFACTURING CO
243 W EIGHTH ST, WYOMING, PA, 18644
Parent company: RELIANCE STEEL & ALUMINUM CO
Carcinogen
— EPA classifications across all reporting years
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases 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.
| Year | Chromium | Manganese | Nickel | Copper | Total |
|---|---|---|---|---|---|
| 2024 | 5 | 5 | 5 | 5 | 20 |
| 2023 | 5 | 5 | 5 | 5 | 20 |
| 2022 | 5 | 5 | 5 | 5 | 20 |
| 2021 | 5 | 5 | 5 | 5 | 20 |
| 2020 | 5 | 5 | 5 | 5 | 20 |
| 2019 | 5 | 5 | 5 | 5 | 20 |
| 2018 | 5 | 5 | 5 | 5 | 20 |
| 2017 | 5 | 5 | 5 | 5 | 20 |
| 2016 | 5 | 5 | 5 | 5 | 20 |
| 2015 | 5 | 5 | 5 | — | 15 |