Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HEMLOCK SEMICONDUCTOR OPERATIONS LLC
12334 GEDDES RD, HEMLOCK, MI, 48626
Parent company: CORNING INC
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 | Chlorodifluoromethane (HCFC-22) | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Freon 113 (CFC-113) | 1,1,1-Trichloroethane | Nitric acid | Total (lbs) |
| 2024 | — | 4,704 | — | — | 80 | 4,966 |
| 2023 | — | 1,008 | — | — | 77 | 1,253 |
| 2022 | 27,441 | 894 | — | — | 44 | 28,558 |
| 2021 | — | 4,945 | — | — | 24 | 5,139 |
| 2020 | — | 696 | — | — | 31 | 898 |
| 2019 | 296 | 2,373 | — | — | 35 | 2,847 |
| 2018 | 2,652 | 3,871 | — | — | 38 | 6,701 |
| 2017 | 4,260 | 2,292 | — | — | 39 | 6,709 |
| 2016 | 6,728 | 1,448 | — | — | 40 | 8,370 |
| 2015 | 4,454 | 2,664 | — | — | 50 | 7,336 |
| 2014 | 6,374 | 6,800 | — | — | 61 | 13,445 |
| 2013 | 4,984 | 2,600 | — | — | 46 | 7,775 |
| 2012 | 4,599 | 2,919 | — | — | 121 | 7,912 |
| 2011 | 6,512 | 5,104 | — | — | 150 | 12,040 |
| 2010 | 6,292 | 12,917 | — | — | 166 | 19,523 |
| 2009 | 5,170 | 5,883 | — | — | 175 | 11,340 |
| 2008 | 8,250 | 3,814 | — | — | 148 | 12,327 |
| 2007 | — | 1,256 | — | — | 129 | 1,490 |
| 2006 | 12,705 | 2,930 | — | — | 124 | 15,840 |
| 2005 | — | 1,173 | — | — | 103 | 1,350 |
| 2004 | — | 1,136 | — | — | 109 | 1,315 |
| 2003 | — | 627 | — | — | 1,963 | 2,744 |
| 2002 | 2,830 | 828 | — | — | 2,407 | 6,176 |
| 2001 | 7,185 | 852 | — | — | 2,071 | 10,198 |
| 2000 | 7,268 | 1,166 | — | — | 4,558 | 13,067 |
| 1999 | 15,072 | 1,412 | — | — | 6,027 | 22,601 |
| 1998 | 12,654 | 2,177 | — | — | 8,478 | 23,572 |
| 1997 | 7,425 | 2,323 | — | — | 6,382 | 16,489 |
| 1996 | 10,022 | 8,833 | — | — | 5,618 | 24,759 |
| 1995 | 7,300 | 9,281 | — | — | 4,396 | 21,549 |
| 1994 | 7,705 | 7,627 | — | — | — | 15,720 |
| 1993 | — | 8,064 | — | 8,304 | 150 | 16,741 |
| 1992 | — | 4,792 | — | 46,607 | 103 | 52,016 |
| 1991 | — | 13,262 | 19,457 | 14,288 | 59 | 47,334 |
| 1990 | — | 12,884 | 23,526 | 6,681 | — | 43,091 |
| 1989 | — | 13,859 | 33,124 | 5,150 | — | 52,287 |
| 1988 | — | — | 31,671 | — | — | 31,735 |
▎ 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.