Facility detail

STEPAN CO MILLSDALE ROAD

22500 STEPAN RD, ELWOOD, IL, 60421

Parent company: STEPAN CO

Carcinogen PBT — EPA classifications across all reporting years

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Year-over-year total releases

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

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases 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.

Year	Maleic anhydride	Phthalic anhydride	Methanol	Nitrate compounds (water dissociable; reportable only when in aqueous solution)	Xylene (mixed isomers)	Total
2024	22,263	60,412	30,389	332,359	9,018	518,067
2023	29,731	79,640	31,762	—	8,804	205,923
2022	31,594	79,354	66,201	31,615	9,776	275,599
2021	29,787	83,712	75,832	29,866	13,417	321,540
2020	29,400	85,812	207,960	46,052	12,254	460,032
2019	112,208	78,187	223,633	49,931	23,605	547,261
2018	113,261	60,071	233,882	43,700	23,718	520,950
2017	158,906	59,592	207,698	43,877	17,274	546,840
2016	149,193	60,755	231,497	42,697	18,529	533,366
2015	141,794	130,220	31,324	32,572	10,334	373,018
2014	120,209	120,222	38,606	32,599	11,307	346,479
2013	102,633	96,032	50,604	22,154	13,504	308,551
2012	123,029	68,218	36,896	16,148	11,922	279,741
2011	129,989	82,583	41,543	18,158	11,913	311,849
2010	107,995	80,974	38,952	1,611	12,680	274,998
2009	103,995	114,048	47,667	26,436	14,029	340,256
2008	144,619	140,557	64,968	21,799	15,732	424,651
2007	229,507	106,652	112,938	26,227	13,493	532,427
2006	211,788	82,189	121,517	38,293	16,459	512,940
2005	188,827	72,643	129,806	35,895	14,534	479,434
2004	194,155	159,220	110,752	28,361	13,664	548,324
2003	159,501	97,394	90,009	25,311	11,690	425,439
2002	143,857	97,960	92,143	26,121	13,687	412,156
2001	114,448	79,912	67,682	22,951	14,657	339,527
2000	76,933	64,064	46,091	23,678	37,944	295,190
1999	162,472	90,090	74,147	25,835	39,885	439,593
1998	141,360	80,926	70,188	30,879	38,427	425,024
1997	226,724	151,655	110,161	23,874	31,080	605,801
1996	405,710	178,594	80,167	28,968	7,797	747,427
1995	161,633	348,311	88,720	19,760	8,759	676,183
1994	65,001	156,300	49,605	—	4,505	324,297
1993	80,001	194,300	55,504	—	2,852	384,223
1992	135,002	432,200	8,000	—	13,683	664,360
1991	212,200	76,200	3,910	—	9,725	393,449
1990	213,461	75,974	3,441	—	8,783	356,997
1989	190,016	70,850	3,516	—	8,476	340,529
1988	—	92,100	4,100	—	—	129,027
1987	—	—	8,550	—	—	30,250