Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
IATAN GENERATING STATION
20250 HWY 45 N, WESTON, MO, 64098
Parent company: EVERGY 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)) | Barium And Barium Compounds | Hydrogen fluoride | Vanadium compounds | Manganese compounds | Total (lbs) |
| 2024 | — | 839,465 | 6,962 | 29,976 | — | 991,517 |
| 2023 | — | 716,655 | 8,166 | 25,698 | — | 864,729 |
| 2022 | — | 1,032,612 | 9,698 | 36,925 | — | 1,250,786 |
| 2021 | 1,176,750 | — | 12,486 | 42,178 | 51,439 | 1,428,747 |
| 2020 | 1,048,544 | — | 11,215 | 37,525 | 44,516 | 1,272,677 |
| 2019 | 1,419,251 | — | 13,669 | 50,791 | 61,657 | 1,717,594 |
| 2018 | 1,052,104 | — | 12,805 | 37,649 | 46,858 | 1,276,757 |
| 2017 | 1,336,807 | — | 2,458 | 70,169 | 70,249 | 1,659,326 |
| 2016 | 1,165,784 | — | 2,292 | 61,183 | 61,291 | 1,451,311 |
| 2015 | 1,354,352 | — | 997 | 71,098 | 71,106 | 1,674,065 |
| 2014 | 1,518,415 | — | 2,187 | 79,720 | 79,684 | 1,884,887 |
| 2013 | 1,761,324 | — | 3,127 | 92,022 | 92,332 | 2,181,035 |
| 2012 | 1,601,477 | — | 2,800 | 86,025 | 85,380 | 1,993,071 |
| 2011 | 2,000,960 | — | 2,100 | 100,019 | 100,420 | 2,464,242 |
| 2010 | 1,502,500 | — | 16,000 | 87,013 | 91,440 | 1,928,528 |
| 2009 | 836,600 | — | 81,000 | 47,009 | 49,590 | 1,164,998 |
| 2008 | 357,000 | — | 88,000 | 20,490 | 21,640 | 629,768 |
| 2007 | 266,600 | — | 110,000 | 13,390 | 15,600 | 842,149 |
| 2006 | 207,300 | — | 120,000 | 10,480 | 12,700 | 412,669 |
| 2005 | 138,500 | — | 130,000 | 7,230 | 8,260 | 366,900 |
| 2004 | 323,000 | — | 140,000 | 16,740 | 18,980 | 578,333 |
| 2003 | 338,700 | — | 150,000 | 17,560 | 19,800 | 607,022 |
| 2002 | 304,300 | — | 130,000 | 14,300 | 8,020 | 519,186 |
| 2001 | 264,500 | — | 140,000 | 12,310 | 6,830 | 484,339 |
| 2000 | 387,000 | — | 110,000 | 18,400 | 10,370 | 574,046 |
| 1999 | 422,000 | — | 140,000 | — | 10,550 | 639,555 |
| 1998 | 692,000 | — | 140,000 | — | 17,550 | 984,065 |
▎ 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.