Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
US ARMY NATIONAL GUARD LIMESTONE HILLS RANGES
OLD WOMANS GRAVE RD, TOWNSEND, MT, 59644
Parent company: US DEPARTMENT OF DEFENSE
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 | Lead | Copper | Total (lbs) | |||
| 2024 | 628 | — | 628 | |||
| 2023 | 2,729 | 14,719 | 17,448 | |||
| 2022 | 980 | — | 980 | |||
| 2021 | 2,213 | — | 2,213 | |||
| 2020 | 1,040 | — | 1,040 | |||
| 2019 | 1,368 | — | 1,368 | |||
| 2018 | 1,350 | — | 1,350 | |||
| 2017 | 983 | — | 983 | |||
| 2016 | 458 | — | 458 | |||
| 2015 | 5,585 | — | 5,585 | |||
| 2014 | 864 | — | 864 | |||
| 2013 | 1,005 | — | 1,005 | |||
| 2012 | 1,006 | — | 1,006 | |||
| 2011 | 1,991 | — | 1,991 | |||
| 2010 | 589 | — | 589 | |||
| 2009 | 748 | — | 748 | |||
▎ 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.