Facility detail

POET BIOREFINING-BIG STONE LLC

48416 144TH ST, BIG STONE CITY, SD, 57216

Parent company: POET HOLDING CO LLC

Carcinogen — EPA classifications across all reporting years

Start another search Verify on EPA ECHO ↗

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

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	Acetaldehyde	Chlorine dioxide	n-Hexane	Methanol	Total (lbs)
2024	—	6,697	—	2,710	6,330	17,937
2023	—	8,120	—	3,500	4,499	24,011
2022	—	4,765	—	3,513	2,129	14,893
2021	—	5,430	—	870	2,690	13,936
2020	—	7,654	—	3,262	2,024	16,785
2019	—	9,568	—	3,530	1,230	17,206
2018	—	7,476	—	3,550	1,135	15,271
2017	—	5,876	—	3,560	975	13,739
2016	—	7,689	—	3,620	1,341	17,191
2015	—	4,296	—	3,427	1,121	10,188
2014	—	3,081	—	2,872	1,596	9,745
2013	—	3,019	—	2,856	1,706	9,766
2012	—	3,097	—	2,873	1,694	9,850
2011	—	2,897	—	2,734	1,682	9,474
2010	—	3,112	—	2,820	1,701	9,799
2009	—	33,094	35,133	2,510	—	73,937
2008	—	33,047	51,542	2,232	1,543	94,359
2007	137,699	26,022	65,247	2,019	1,426	232,413
2006	91,741	7,687	—	1,532	2,190	106,139
2005	72,975	7,635	—	1,723	2,175	87,477
2004	70,850	7,453	—	1,685	2,237	85,540
2003	68,500	6,838	—	1,635	2,045	82,042
2002	2,448	22,833	—	—	—	32,274

▎ 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.