Facility detail

CONTINENTAL CEMENT CO

301 E FRONT ST, BUFFALO, IA, 52728

Parent company: SUMMIT MATERIALS LLC

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)	Manganese	Manganese compounds	Zinc compounds	Ammonia	Total
2024	136,830	—	1,213	711	18,368	157,735
2023	144,753	—	648	583	19,416	165,880
2022	138,274	—	4,202	1,506	18,477	164,130
2021	139,110	—	2,115	947	16,596	159,577
2020	138,624	—	1,574	815	16,972	158,595
2019	136,394	—	—	—	16,450	152,971
2018	144,000	—	1,239	—	—	145,318
2017	160,000	—	2,294	685	—	163,384
2016	160,000	—	2,189	—	—	164,696
2015	140,000	—	—	—	—	145,103
2014	160,000	—	—	—	—	163,809
2013	140,000	—	—	—	—	143,803
2012	150,000	—	—	—	—	151,840
2011	140,000	—	—	—	—	143,337
2010	110,000	—	—	—	—	112,831
2009	110,000	—	—	—	—	111,535
2008	120,000	—	—	—	—	121,136
2007	140,000	—	—	—	—	141,241
2006	130,000	—	—	—	—	130,677
2005	143,000	—	—	—	—	144,019
2004	143,000	—	—	—	—	144,447
2003	131,448	—	—	—	—	133,170
2002	150,000	1	—	—	—	155,911
2001	140,000	—	—	—	—	145,795
2000	88,000	—	—	—	—	93,462
1999	87,219	—	—	58,070	—	156,490
1998	35,732	—	—	82,095	—	133,781
1997	34,453	—	252,689	—	—	289,632
1996	31,000	252,650	—	—	—	286,205
1995	44,000	182,550	—	—	—	228,405
1994	—	112,750	—	—	—	113,975
1993	—	110,920	—	—	—	112,135
1992	—	—	144,289	—	—	145,810
1991	—	—	164,900	—	—	166,604
1990	—	—	—	—	—	1,610
1989	—	—	—	—	—	1,610
1988	—	—	—	—	—	1,610