Facility detail

RIVER CEMENT CO (DBA BUZZI UNICEM USA)

1000 RIVER CEMENT RD, FESTUS, MO, 63028

Parent company: RC LONESTAR INC

Carcinogen PBT — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.

Full release table

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

All values in pounds (lbs)
Year Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) Zinc compounds Benzene Lead Mixture Total (lbs)
2024 — — — — — 21,152
2023 — — — — — 22,610
2022 — — — — — 25,959
2021 — 849 — — — 27,723
2020 — 806 — — — 26,144
2019 — 818 — — — 3,175
2018 23,183 691 32,528 — — 57,114
2017 25,035 801 35,127 — — 61,736
2016 286,185 — 32,707 — — 319,568
2015 310,792 — 35,519 — — 347,083
2014 310,799 — 35,519 — — 347,192
2013 293,261 — — — — 294,152
2012 218,053 — — — — 218,764
2011 140,230 — — — — 141,736
2010 1,002 — — — — 1,289
2009 115,150 — — — — 115,742
2008 126,485 — — — — 182,938
2007 138,690 16,665 — — — 233,585
2006 146,097 34,464 — — — 212,237
2005 153,685 — — — — 174,789
2004 155,716 — — 24,718 — 180,693
2003 155,511 29,029 — 10,475 — 195,821
2002 139,507 54,436 — 14,561 — 212,655
2001 139,559 43,840 — 29,624 — 213,166
2000 152,819 392,476 — 53,910 — 602,810
1999 143,471 — — — — 143,471
1998 144,318 — — — — 144,318
1997 111,655 — — — — 123,539
1996 65,000 — — — — 82,182
1995 60,000 — 500 — — 84,140
1994 — — 617 327 — 39,956
1993 — — — — 34,007 34,007
1992 — — — — 29,260 29,260
1991 — — — — 31,139 31,139
1990 — — — — 20,471 20,471
1989 — 250 — — 12,240 14,740
1988 — — — — — 2,250
1987 — 250 — — — 1,250

▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.