Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
MEMC LLC
501 PEARL DR, SAINT PETERS, MO, 63376
Parent company: NA
Carcinogen
— EPA classifications across all reporting years
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 | Freon 113 (CFC-113) | Ammonia | Trichloroethylene | Dichloromethane | Total (lbs) |
| 2024 | — | — | — | — | — | 1,607 |
| 2023 | — | — | — | — | — | 2,191 |
| 2022 | — | — | — | — | — | 2,077 |
| 2021 | — | — | — | — | — | 1,161 |
| 2020 | — | — | — | — | — | 950 |
| 2019 | — | — | — | — | — | 353 |
| 2018 | — | — | — | — | — | 725 |
| 2017 | — | — | — | — | — | 681 |
| 2016 | — | — | — | — | — | 715 |
| 2015 | — | — | — | — | — | 477 |
| 2014 | — | — | — | — | — | 537 |
| 2013 | — | — | — | — | — | 262 |
| 2012 | — | — | — | — | — | 313 |
| 2011 | — | — | — | — | — | 2,808 |
| 2010 | — | — | — | — | — | 2,283 |
| 2009 | — | — | — | — | — | 3,553 |
| 2008 | — | — | — | — | — | 5,009 |
| 2007 | — | — | 10,769 | — | — | 19,600 |
| 2006 | — | — | 10,769 | — | — | 17,915 |
| 2005 | — | — | 9,662 | — | — | 22,032 |
| 2004 | — | — | 10,118 | — | — | 21,586 |
| 2003 | — | — | 7,782 | — | — | 13,324 |
| 2002 | — | — | 7,786 | — | — | 13,673 |
| 2001 | — | — | — | — | — | 5,974 |
| 2000 | — | — | 7,800 | — | — | 10,840 |
| 1999 | — | — | 41,000 | — | — | 42,611 |
| 1998 | — | — | 30,221 | — | — | 32,063 |
| 1997 | — | — | 45,000 | — | — | 47,064 |
| 1996 | — | — | 43,000 | — | — | 45,181 |
| 1995 | — | — | — | — | — | 2,229 |
| 1994 | — | — | — | — | — | 2,553 |
| 1993 | — | 9,900 | 11,000 | — | — | 24,062 |
| 1992 | 217,300 | 93,500 | 13,000 | 44,200 | 25,200 | 395,188 |
| 1991 | 241,000 | 102,000 | — | 67,250 | 29,500 | 442,380 |
| 1990 | 221,000 | 108,011 | 1,800 | 68,320 | 33,300 | 434,993 |
| 1989 | 200,940 | 110,640 | 2,000 | 45,210 | 21,000 | 382,835 |
| 1988 | 170,610 | 110,940 | — | — | — | 283,760 |
| 1987 | 130,750 | 82,100 | — | — | 14,250 | 229,250 |
▎ 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.