Year-over-year total releases
Reported on-site TRI releases in pounds, grouped by reporting year.
Facility detail
RT 100, MAIDSVILLE, WV, 26541
Parent company: MEPCO HOLDINGS LLC
Reported on-site TRI releases in pounds, grouped by reporting year.
The 10 chemicals with the highest cumulative on-site releases across all available years.
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| Year | Manganese compounds | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Vanadium compounds | Arsenic compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Total |
|---|---|---|---|---|---|---|
| 2023 | 29,530 | — | 10,292 | — | — | 64,423 |
| 2022 | — | — | 16,549 | — | — | 118,918 |
| 2021 | — | — | 14,563 | — | — | 104,653 |
| 2020 | — | — | 19,294 | — | — | 148,865 |
| 2019 | 94,110 | 73,433 | 32,795 | 17,367 | 16,155 | 269,196 |
| 2018 | — | — | 100,859 | — | — | 887,987 |
| 2017 | 387,688 | 302,540 | 135,119 | 71,557 | 66,592 | 1,200,220 |
| 2016 | 458,672 | 357,929 | 159,857 | 84,657 | 78,770 | 1,419,905 |
| 2015 | 363,685 | 283,802 | 126,750 | 67,125 | 62,456 | 1,125,874 |
| 2014 | 371,655 | 290,026 | 129,530 | 68,597 | 63,822 | 1,030,587 |
| 2013 | 670,914 | 523,565 | 233,832 | 123,833 | 115,190 | 1,860,404 |
| 2012 | 582,591 | 454,635 | 203,048 | 107,530 | 100,025 | 1,615,480 |
| 2011 | 503,377 | 392,810 | 175,433 | 92,906 | 86,423 | 1,395,802 |
| 2010 | 376,129 | 293,482 | 131,071 | 69,413 | 64,570 | 1,042,889 |
| 2009 | 67,545 | 141,580 | — | 31,294 | 31,178 | 352,077 |
| 2008 | 49,336 | 104,419 | 174,267 | 22,859 | 22,775 | 464,714 |
| 2007 | 51,116 | 107,150 | 180,555 | 23,684 | 23,597 | 480,444 |
| 2006 | 39,370 | 82,527 | 139,064 | 18,241 | 18,174 | 370,040 |
| 2004 | 8,416 | 17,641 | 29,726 | 3,899 | 3,885 | 79,099 |
| 2003 | 36,860 | 76,801 | 1,203 | 16,947 | 17,235 | 216,885 |
| 2002 | 56,089 | 107,352 | 196,715 | 23,118 | 30,707 | 513,256 |
| 2001 | 25,587 | 49,949 | 89,873 | 10,818 | 13,551 | 235,470 |
| 2000 | 89,806 | 351,978 | 91,382 | 52,939 | 60,816 | 959,134 |