Facility detail

HOWMET CORP - PLANT 4

555 BENSTON RD, 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	Acetone	Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)	Hydrogen fluoride	Aluminum (fume or dust)	Total (lbs)
2024	—	—	405	87	—	494
2023	—	—	396	80	—	478
2022	—	—	395	85	—	482
2021	—	—	366	78	—	446
2020	—	—	394	88	—	485
2019	—	—	538	90	—	632
2018	—	—	488	90	—	581
2017	—	—	481	94	—	578
2016	—	—	485	93	—	593
2015	—	—	436	96	—	548
2014	—	—	324	123	—	464
2013	—	—	471	124	—	615
2012	—	—	76	123	—	206
2011	—	—	2,250	123	—	2,381
2010	—	—	1,890	21	—	1,922
2009	—	—	781	4	—	797
2008	—	—	779	318	—	1,138
2007	—	—	978	6	—	999
2006	—	—	955	6	—	975
2005	—	—	1,105	10	—	1,166
2004	—	—	977	928	—	1,969
2003	—	—	1,483	781	—	2,362
2002	—	—	1,523	715	—	2,372
2001	—	—	1,000	585	60	1,828
2000	—	—	70	150	172	630
1999	—	—	124	66	112	480
1998	—	—	500	500	500	2,500
1997	—	—	500	500	500	3,000
1996	—	—	—	500	500	2,000
1995	—	—	—	500	500	2,000
1994	—	—	500	500	500	2,500
1993	8,874	—	—	500	—	11,374
1992	4,854	9,200	—	500	—	14,839
1991	4,854	—	—	500	—	5,384
1990	4,958	6,200	—	—	—	11,188
1989	9,400	9,900	—	—	1,000	20,300
1988	—	1,000	—	—	—	1,750
1987	—	—	—	—	—	1,782

▎ 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.