Facility detail

HOWMET CORP - PLANTS 1& 3

ONE MISCO DR, WHITEHALL, MI, 49461

Parent company: HOWMET AEROSPACE INC

Carcinogen — EPA classifications across all reporting years

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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	1,1,1-Trichloroethane	Aluminum (fume or dust)	Nickel	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Cobalt	Total (lbs)
2024	—	—	46	—	6	69
2023	—	—	46	—	6	66
2022	—	—	46	—	6	71
2021	—	—	48	—	7	72
2020	—	—	36	—	5	57
2019	—	—	118	—	22	226
2018	—	—	131	—	24	236
2017	—	—	118	—	23	224
2016	—	—	134	—	21	241
2015	—	—	282	—	77	447
2014	—	—	454	—	77	625
2013	—	—	394	—	68	548
2012	—	—	513	—	7	596
2011	—	—	287	—	50	423
2010	—	—	269	—	44	390
2009	—	—	340	—	60	473
2008	—	—	452	—	80	638
2007	—	—	464	—	81	649
2006	—	—	468	—	81	666
2005	—	—	516	—	88	722
2004	—	—	453	—	79	915
2003	—	—	441	—	76	607
2002	—	—	440	—	78	606
2001	—	—	242	—	40	626
2000	—	—	32	—	6	84
1999	—	—	28	—	4	60
1998	—	—	500	—	10	1,550
1997	—	—	500	—	10	1,040
1996	—	6,616	500	—	10	7,636
1995	—	—	500	—	500	1,020
1994	—	—	500	500	10	1,520
1993	—	—	500	1,500	500	3,010
1992	11,700	—	500	500	10	13,720
1991	21,150	—	500	500	10	23,415
1990	26,975	5,850	500	500	500	35,580
1989	9,521	—	500	500	500	12,271
1988	11,450	6,550	500	500	500	20,250
1987	—	12,600	—	—	—	12,600

▎ 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.