Facility detail

KOPPERS INC (SOMERVILLE TX)

290 COUNTY RD 423, SOMERVILLE, TX, 77879

Parent company: KOPPERS 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	Creosote	Naphthalene	Xylene (mixed isomers)	Ethylbenzene	Polycyclic aromatic compounds	Total
2024	2,544	—	—	—	6	2,550
2023	3,303	—	—	—	6	3,309
2022	3,603	—	—	—	7	3,610
2021	3,304	—	—	—	6	3,310
2020	5,706	—	—	—	12	5,718
2019	5,904	—	—	—	13	5,917
2018	7,405	—	—	—	16	7,421
2017	7,505	—	—	—	16	7,521
2016	9,008	—	—	—	19	9,027
2015	6,381	—	—	—	11	6,392
2014	6,646	—	—	—	11	6,657
2013	6,886	—	—	—	11	6,897
2012	5,475	—	—	—	8	5,483
2011	3,513	—	—	—	8	3,520
2010	3,904	—	—	—	8	3,912
2009	6,825	—	—	—	4	6,829
2008	5,084	—	—	—	4	5,088
2007	8,808	—	—	—	8	8,816
2006	7,904	—	—	—	7	7,911
2005	8,509	—	—	—	8	8,517
2004	7,750	—	—	—	9	7,759
2003	7,750	—	—	—	234	7,986
2002	9,655	—	—	—	16	9,673
2001	6,907	—	—	—	8	6,915
2000	6,848	—	—	—	10	6,858
1999	18,487	—	—	—	—	18,487
1998	23,728	—	—	—	—	23,728
1997	26,247	—	—	—	—	26,247
1996	23,879	—	—	—	—	23,879
1995	11,910	—	—	—	—	11,910
1994	3,030	—	11,408	2,853	—	17,291
1993	3,022	14,463	11,570	2,893	—	31,948
1992	2,943	14,082	11,265	2,817	—	31,107
1991	1,712	8,191	6,553	1,638	—	18,094
1990	2,876	13,763	11,010	2,753	—	30,402
1989	—	8,402	6,722	1,680	—	16,804
1988	—	10,438	—	2,088	—	12,526
1987	—	16,624	—	—	—	16,624