Facility detail

IPL-SUTHERLAND GENERATING STATION

3001 E MAIN ST, MARSHALLTOWN, IA, 50158

Parent company: ALLIANT ENERGY CORP

Carcinogen PBT — EPA classifications across all reporting years

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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	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Hydrogen fluoride	Barium compounds (except for barium sulfate (CAS No. 7727-43-7))	Vanadium compounds	Total (lbs)
2016	—	—	—	—	—	3
2015	—	—	—	—	—	3
2014	—	—	—	—	—	5
2013	—	—	—	—	—	8
2012	—	—	—	290	—	348
2011	6,343	17,921	—	498	137	24,958
2010	12,076	19,252	—	1,164	175	32,844
2009	13,105	—	—	659	187	14,115
2008	19,165	—	13,957	873	198	34,496
2007	26,651	—	18,526	746	673	47,780
2006	32,602	—	22,587	1,616	1,321	58,470
2005	23,885	—	27,288	421	—	51,958
2004	16,860	—	23,340	410	307	41,228
2003	—	—	—	320	305	701
2002	84,300	—	—	694	249	85,330
2001	49,300	—	—	653	325	50,368
2000	51,500	—	—	1,778	616	53,948
1999	—	38,600	—	1,181	—	41,036
1998	—	66,900	—	1,480	—	69,918

▎ 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.