Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
THOMAS HILL ENERGY CENTER
5693 HWY F, CLIFTON HILL, MO, 65244
Parent company: ASSOCIATED ELECTRIC COOPERATIVE INC
Carcinogen
PBT
— 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 | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | Hydrogen fluoride | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Barium And Barium Compounds | Vanadium compounds | Total (lbs) |
| 2024 | — | 167,453 | 28,705 | 661,202 | 19,263 | 961,189 |
| 2023 | 697,717 | 180,447 | 25,668 | — | 27,883 | 1,020,324 |
| 2022 | — | 222,979 | 29,683 | 820,626 | 34,811 | 1,214,964 |
| 2021 | 511,005 | 281,786 | 37,998 | — | 16,499 | 1,010,885 |
| 2020 | 432,705 | 216,726 | 20,681 | — | 17,068 | 734,623 |
| 2019 | 724,172 | 264,010 | 47,321 | — | 27,122 | 1,268,891 |
| 2018 | 1,608,933 | 222,979 | 31,633 | — | 52,325 | 2,241,716 |
| 2017 | 1,551,333 | 359,707 | 28,903 | — | 48,710 | 2,319,235 |
| 2016 | 1,383,417 | 312,248 | 105,870 | — | 44,277 | 2,003,946 |
| 2015 | 3,993,940 | 340,469 | 114,229 | — | 125,520 | 5,026,259 |
| 2014 | 1,308,031 | 261,742 | 89,479 | — | 43,407 | 1,840,682 |
| 2013 | 885,130 | 268,000 | 91,760 | — | 31,934 | 1,390,044 |
| 2012 | 698,160 | 233,000 | 83,000 | — | 25,264 | 1,139,676 |
| 2011 | 1,418,693 | 273,900 | 103,268 | — | 43,284 | 2,151,159 |
| 2010 | 1,090,550 | 227,550 | 91,600 | — | 45,900 | 1,590,556 |
| 2009 | 1,019,210 | 250,000 | 89,000 | — | 34,582 | 1,495,754 |
| 2008 | 1,119,360 | 233,500 | 86,000 | — | 33,764 | 1,589,703 |
| 2007 | 1,275,570 | 253,000 | 71,000 | — | 53,230 | 1,815,824 |
| 2006 | 1,188,435 | 243,000 | 77,800 | — | 42,650 | 1,708,300 |
| 2005 | 1,170,865 | 280,000 | 77,894 | — | 48,390 | 1,743,086 |
| 2004 | 1,750,808 | 200,000 | 80,737 | — | 73,700 | 2,317,488 |
| 2003 | 656,864 | 267,200 | 90,150 | — | 32,818 | 1,212,591 |
| 2002 | 859,977 | 240,500 | 71,648 | — | 14,850 | 1,322,027 |
| 2001 | 987,250 | 265,000 | 93,500 | — | 59,600 | 1,548,917 |
| 2000 | 1,237,000 | 230,000 | 60,000 | — | 43,000 | 1,743,852 |
| 1999 | 1,336,550 | 240,000 | 30,000 | — | — | 1,771,975 |
| 1998 | 1,441,500 | 220,000 | 18,000 | — | — | 1,817,860 |
▎ 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.