Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PRAIRIE ETHANOL LLC (DBA POET BIOREFINING) MITCHELL
40509 247TH ST, MITCHELL, SD, 57301
Parent company: POET HOLDING CO LLC
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 | Ammonia | n-Hexane | Acetaldehyde | Methanol | Formic acid | Total (lbs) |
| 2024 | — | 3,288 | — | 3,400 | — | 6,688 |
| 2023 | — | 3,112 | — | 3,600 | — | 6,712 |
| 2022 | — | 3,012 | — | 3,400 | — | 6,412 |
| 2021 | — | 580 | 3,520 | 2,960 | 1,400 | 9,800 |
| 2020 | — | 3,116 | 2,542 | 2,009 | 1,900 | 9,567 |
| 2019 | — | 3,217 | 2,544 | 1,520 | 1,500 | 9,422 |
| 2018 | — | 3,909 | 3,344 | 620 | 1,500 | 10,004 |
| 2017 | — | 3,826 | 2,244 | 720 | 1,200 | 8,681 |
| 2016 | — | 3,795 | 2,243 | 1,119 | 640 | 9,525 |
| 2015 | — | 3,590 | 1,853 | — | — | 6,368 |
| 2014 | — | 3,513 | 1,886 | — | — | 6,322 |
| 2013 | — | 3,435 | 2,295 | — | — | 6,647 |
| 2012 | — | 3,148 | 1,965 | — | — | 6,013 |
| 2011 | — | 4,318 | 2,604 | — | — | 6,922 |
| 2010 | 7,074 | 4,203 | 2,593 | — | — | 13,870 |
| 2009 | 5,509 | 4,703 | 2,529 | — | — | 12,741 |
| 2008 | 5,468 | 4,680 | 2,549 | — | — | 12,697 |
| 2007 | 78,944 | 4,860 | 2,400 | — | — | 86,204 |
▎ 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.