Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MONTANA PRECISION PRODUCTS LLC
119800 RICK JONES WAY, BUTTE, MT, 59750
Parent company: MONTANA PRECISION PRODUCTS
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 | 4,4'-Isopropylidenediphenol | Nickel | Chromium | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total (lbs) |
| 2024 | — | 33 | 9 | — | — | 42 |
| 2023 | — | 22 | 10 | — | — | 32 |
| 2022 | — | 19 | 2 | — | — | 21 |
| 2021 | — | 102 | 2 | — | — | 104 |
| 2020 | — | 20 | — | 22 | — | 42 |
| 2019 | 271 | 54 | — | 11 | — | 336 |
| 2018 | 260 | 45 | — | 28 | — | 333 |
| 2017 | 265 | 77 | — | — | — | 342 |
| 2016 | 265 | 43 | — | — | — | 308 |
| 2015 | 265 | 59 | 68 | — | — | 392 |
| 2014 | 272 | — | 260 | — | — | 532 |
| 2013 | 250 | — | 15 | — | — | 265 |
| 2012 | 5 | — | — | — | 10 | 15 |
| 2011 | 5 | — | — | — | 10 | 15 |
| 2010 | 5 | — | — | — | — | 5 |
▎ 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.