Facility detail

ASH GROVE CEMENT CO MONTANA CITY PLANT

100 HWY #518, CLANCY, MT, 59634

Parent company: CRH AMERICAS 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	Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Lead compounds	Ammonia	Lead And Lead Compounds	Chromium compounds (except for chromite ore mined in the Transvaal Region)	Total
2024	—	4,643	—	—	—	4,964
2023	—	6,442	—	—	—	7,015
2022	—	—	4,806	5,945	—	11,763
2021	—	—	12,010	7,541	—	20,294
2020	—	—	9,911	5,639	—	16,283
2019	—	—	7,812	5,836	—	14,118
2018	—	—	6,737	11,383	—	18,627
2017	—	10,385	7,697	—	2,870	20,961
2016	—	4,777	7,612	—	1,773	14,170
2015	—	2,871	11,271	—	1,811	15,969
2014	—	19,032	—	—	1,740	20,780
2013	32,668	11,020	—	—	2,365	46,061
2012	26,362	2,835	—	—	1,508	30,712
2011	—	3,236	—	—	1,182	4,425
2010	—	3,560	—	—	1,344	4,909
2009	—	2,469	—	—	1,070	3,548
2008	33,758	5,498	—	—	1,820	41,087
2007	34,926	4,669	—	—	1,084	40,689
2005	28,124	4,175	—	—	956	33,299
2004	27,961	4,037	—	—	—	32,042
2003	27,026	3,422	—	—	—	30,489
2002	26,974	3,289	—	—	—	30,303
2001	25,292	—	—	—	—	25,590
2000	24,757	—	—	—	—	24,787
1999	27,606	—	—	—	—	27,606
1998	32,869	—	—	—	—	32,869
1997	32,680	—	—	—	—	32,680
1996	26,573	—	—	—	—	26,573