Facility detail

KOPPERS PERFORMANCE CHEMICALS INC

103 ROBERTSON RD, ROCK HILL, SC, 29730

Parent company: KOPPERS INC

Carcinogen — 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	Chromium compounds (except for chromite ore mined in the Transvaal Region)	Copper compounds	Ammonia	Copper And Copper Compounds	Arsenic compounds	Total
2024	—	25	—	—	—	25
2023	—	—	—	15	—	15
2022	—	—	—	15	—	15
2021	—	17	—	—	—	17
2020	—	15	—	—	—	15
2019	—	19	—	—	—	19
2018	—	4	—	—	—	4
2017	—	8	—	—	—	8
2016	—	9	—	—	—	9
2015	—	4	—	—	—	4
2013	—	3	—	—	—	3
2012	—	2	—	—	—	2
2011	—	4	—	—	—	4
2010	—	5	5	—	—	10
2009	—	—	6	—	—	6
2008	—	—	10	—	—	10
2007	—	—	20	—	—	20
2006	—	—	41	—	—	41
2005	—	—	231	—	—	231
2004	0	0	273	—	0	273
2003	16	6	—	—	10	32
2002	250	250	—	—	—	500
2001	250	250	—	—	—	500
2000	250	250	—	—	—	500
1998	250	250	—	—	—	500
1997	250	250	—	—	—	500
1996	250	250	—	—	—	500
1995	250	—	—	—	—	250
1994	250	—	—	—	—	250
1993	250	—	—	—	—	250
1992	250	—	—	—	—	250
1991	500	—	—	—	—	500