Facility detail

MOUNTAIN STATE CARBON LLC

1851 MAIN ST, FOLLANSBEE, WV, 26037

Parent company: CLEVELAND CLIFFS 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 Zinc compounds Benzene Ethylene Nitrate compounds (water dissociable; reportable only when in aqueous solution) Ammonia Total (lbs)
2022 — 8,300 7,200 61,000 2,667 84,988
2021 — 42,500 32,400 260,000 11,770 367,442
2020 — 24,700 25,500 430,000 11,600 529,494
2019 — 47,068 49,000 700,000 12,610 865,508
2018 — 41,000 44,000 690,000 10,460 800,888
2017 — 32,500 39,000 570,000 8,474 666,509
2016 — 31,300 38,000 530,000 10,730 626,631
2015 — 38,000 41,000 380,000 12,900 497,408
2014 — 41,000 42,000 300,000 29,300 441,840
2013 — 40,000 39,000 120,000 25,700 256,916
2012 — 50,000 50,000 82,000 43,000 272,105
2011 — 87,000 56,800 74,000 52,800 322,820
2010 — 87,000 58,200 110,000 41,300 383,498
2009 — 16,300 20,500 90,000 91,000 265,263
2008 — 57,000 80,000 44,000 27,900 309,663
2007 — 66,019 74,000 62,000 30,000 339,278
2006 — 49,019 24,000 63,000 23,100 240,327
2005 — 57,019 27,300 64,000 21,900 263,294
2004 — 67,019 24,300 57,000 23,700 250,901
2003 — 90,019 32,600 45,000 27,300 276,156
2002 — 95,019 36,000 150,000 26,900 410,811
2001 — 57,019 33,000 208,000 25,900 400,466
2000 — 101,019 32,000 34,000 11,680 366,160
1999 4,500 110,120 16,100 60,000 73,900 406,526
1998 12,000 31,400 42,600 — 94,600 305,644
1997 — 14,305 13,400 — 43,800 100,878
1996 9,302 39,610 83,600 — 106,000 397,193
1995 12,000 216,100 925,000 — 174,000 1,718,575
1994 12,000 329,206 1,407,700 — 345,000 2,631,332
1993 — 243,005 751,000 — 417,000 1,802,419
1992 — 286,500 315,300 — 382,000 1,239,099
1991 11,570 1,008,004 535,000 — 690,000 2,704,874
1990 6,500,000 1,550,004 410,000 — 434,200 10,325,464
1989 6,400,000 1,570,005 600,000 — 404,100 10,541,075
1988 320,000 — — — 866,000 2,127,765
1987 8,000,170 — — — — 8,257,533

▎ 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.