Facility detail

CHAPARRAL STEEL MIDLOTHIAN LP

300 WARD RD, MIDLOTHIAN, TX, 76065

Parent company: GERDAU USA 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	Zinc compounds	Lead compounds	Aluminum oxide (fibrous forms)	Manganese compounds	Zinc (fume or dust)	Total
2024	5,960	—	—	3,023	—	11,076
2023	6,531	—	—	6,005	—	15,082
2022	5,903	—	—	—	—	10,121
2021	6,044	—	—	—	—	10,443
2020	6,427	—	—	—	—	12,017
2019	6,260	—	—	3,343	—	11,748
2018	5,699	—	—	—	—	10,227
2017	6,076	814	—	3,331	—	11,477
2016	4,807	652	—	2,610	—	9,087
2015	6,680	884	—	5,019	—	14,104
2014	6,047	833	—	2,636	—	10,721
2013	5,147	802	—	2,370	—	9,393
2012	6,313	945	—	2,760	—	11,211
2011	6,037	909	—	2,360	—	10,384
2010	6,177	917	—	2,795	—	11,073
2009	4,346	647	—	1,787	—	7,568
2008	6,134	930	—	1,967	—	10,120
2007	7,049	1,072	—	2,439	—	11,862
2006	6,863	1,039	—	1,825	—	10,928
2005	6,268	950	—	1,953	—	10,303
2004	6,995	965	—	1,654	—	10,762
2003	17,710	2,495	—	3,554	—	25,011
2002	25,986	3,658	—	4,746	—	35,839
2001	25,632	3,594	—	4,780	—	35,447
2000	27,695	3,923	—	5,030	—	38,047
1999	25,591	3,655	—	3,350	—	52,087
1998	27,016	3,862	—	3,576	—	34,684
1997	29,971	4,324	—	3,980	—	38,533
1996	—	—	—	—	12,200	15,842
1995	—	—	—	—	12,244	15,918
1994	—	—	—	—	53,000	61,928
1993	—	—	—	—	36,000	44,248
1992	—	—	—	—	20,300	27,500
1991	—	—	—	—	22,000	29,120
1989	806,352	134,196	—	98,611	—	1,074,664
1988	—	736,766	458,741	—	—	1,316,877
1987	7,334,000	—	—	—	—	7,334,000