Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
DAVE GATES GENERATING STATION
241 UNIT A WILLOW GLEN ROAD, ANACONDA, MT, 59711
Parent company: NORTHWESTERN ENERGY CORP
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 | Ammonia | Total (lbs) | ||||
| 2024 | 23,529 | 23,529 | ||||
| 2023 | 26,831 | 26,831 | ||||
| 2022 | 23,180 | 23,180 | ||||
| 2021 | 19,503 | 19,503 | ||||
| 2020 | 17,455 | 17,455 | ||||
| 2019 | 20,512 | 20,512 | ||||
| 2018 | 16,427 | 16,427 | ||||
| 2017 | 19,290 | 19,290 | ||||
| 2016 | 21,056 | 21,056 | ||||
| 2015 | 38,319 | 38,319 | ||||
| 2014 | 32,289 | 32,289 | ||||
| 2013 | 33,660 | 33,660 | ||||
| 2012 | 29,073 | 29,073 | ||||
| 2011 | 25,739 | 25,739 | ||||
| 2010 | 2,936 | 2,936 | ||||
▎ 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.