Facility detail

GUARDIAN INDUSTRIES - DEWITT

300 S 5TH AVE E, DE WITT, IA, 52742

Parent company: KOCH INC.

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

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

The 10 chemicals with the highest cumulative on-site releases across all available years.

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

Year	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Ammonia	Xylene (mixed isomers)	Lead compounds	n-Butyl alcohol	Total
2024	—	14,761	—	—	—	14,765
2023	—	9,989	—	5	—	9,994
2022	—	130	—	—	—	135
2021	—	739	—	5	—	744
2020	—	650	—	—	—	655
2019	—	643	—	—	115	762
2018	—	556	—	5	—	561
2017	—	—	—	60	—	60
2016	—	—	—	62	—	62
2015	—	—	—	62	—	62
2014	—	—	—	64	—	64
2013	—	—	—	65	—	65
2012	—	—	—	65	—	65
2011	—	—	—	64	255	319
2010	—	—	—	64	—	64
2009	—	—	—	67	—	67
2008	—	—	—	63	—	63
2007	—	—	—	60	—	60
2006	—	—	—	60	107	167
2005	27,727	—	16	60	38	27,841
2004	27,995	—	52	60	12	28,133
2003	32,716	—	57	60	10	32,856
2002	31,772	—	874	60	—	32,706
2001	29,993	—	3,882	56	—	33,931
2000	48,325	—	4,504	—	—	52,829
1999	47,264	—	8,108	—	—	55,372
1998	47,418	—	2,099	—	—	49,517
1997	43,800	—	—	—	—	43,800