Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
SUMMIT MACHINE LLC
2880 E PHILADELPHIA STREET, ONTARIO, CA, 91761
Parent company: BERKSHIRE HATHAWAY INC
Carcinogen
— 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 | Nickel | Chromium | Cobalt | Copper | Total (lbs) | |
| 2023 | 2 | 1 | — | — | 3 | |
| 2022 | 1 | — | — | — | 1 | |
| 2021 | 3 | 1 | — | — | 4 | |
| 2020 | 2 | 1 | — | — | 3 | |
| 2019 | 7 | 2 | — | — | 9 | |
| 2018 | 23 | 8 | 3 | — | 34 | |
| 2017 | 10 | 3 | 1 | 0 | 14 | |
| 2016 | 18 | 6 | 1 | 0 | 25 | |
| 2015 | 15 | 5 | 1 | 0 | 21 | |
| 2014 | 12 | 4 | 1 | — | 17 | |
| 2013 | 17 | 6 | 1 | — | 24 | |
| 2012 | 25 | 6 | 1 | — | 32 | |
| 2011 | 20 | 5 | 1 | — | 26 | |
| 2010 | 22 | 4 | 1 | — | 27 | |
| 2009 | 17 | 4 | — | — | 21 | |
▎ 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.