Facility detail

HEIDELBERG MATERIALS US CEMENT LLC

700 25TH ST, MASON CITY, IA, 50401

Parent company: HEIDELBERG MATERIALS US 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	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Lead compounds	Ammonia	Chromium compounds (except for chromite ore mined in the Transvaal Region)	Copper compounds	Total
2024	—	—	6,146	—	—	14,424
2023	—	—	6,424	—	—	18,065
2022	—	—	7,117	—	—	7,182
2021	—	—	7,377	—	—	7,439
2020	1,864	12	7,747	—	622	10,312
2019	2,706	10	—	15	621	3,402
2018	2,908	62	—	107	1,077	4,798
2017	1,284	30,476	—	3,086	1,231	37,417
2016	20,818	16,810	—	1,704	4,707	45,118
2015	17,912	20,898	—	2,117	5,002	47,098
2014	13,500	11,640	—	1,180	3,392	30,487
2013	14,000	11,386	—	1,155	—	27,258
2012	15,673	11,492	—	1,166	—	29,149
2011	12,971	9,182	—	932	—	23,213
2010	12,172	8,745	—	887	—	21,917
2009	10,945	11,728	—	1,188	—	23,960
2008	—	4,898	—	565	—	5,510
2007	—	6,174	—	—	—	6,364
2006	—	6,174	—	—	—	6,364
2005	42,960	5,435	—	—	—	48,582
2004	48,640	14,658	—	—	—	63,469
2003	48,080	23,363	—	—	—	71,647
2002	45,640	21,370	—	—	—	67,132
2001	34,997	11,694	—	12,415	4,883	76,269
1996	—	—	—	1,500	—	2,000
1995	—	—	—	500	—	2,000
1994	—	—	—	500	—	2,000
1993	—	—	—	—	—	1,500
1992	—	—	—	—	—	1,500
1991	—	—	—	—	—	500
1990	—	—	—	—	—	500
1989	—	—	—	—	—	500