Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
PACIFICORP HUNTER PLANT
3 MILES S OF CASTLE DALE ON STATE HIGHTWAY 10, CASTLE DALE, UT, 84513
Parent company: BERKSHIRE HATHAWAY 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)) | Manganese compounds | Barium And Barium Compounds | Chromium compounds (except for chromite ore mined in the Transvaal Region) | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | Total (lbs) |
| 2024 | — | — | 1,175,202 | — | 11,290 | 1,435,791 |
| 2023 | — | — | 1,140,145 | — | 7,710 | 1,348,953 |
| 2022 | — | — | 776,859 | — | 10,220 | 1,181,666 |
| 2021 | 991,623 | 141,853 | — | 89,181 | 17,100 | 1,528,998 |
| 2020 | 829,434 | 121,331 | — | 85,934 | 18,720 | 1,309,660 |
| 2019 | 537,401 | 141,409 | — | 103,352 | 18,790 | 1,073,922 |
| 2018 | 503,238 | 138,879 | — | 99,334 | 17,990 | 1,005,346 |
| 2017 | 510,041 | 190,102 | — | 122,329 | 22,940 | 1,153,196 |
| 2016 | 682,340 | 169,495 | — | 120,935 | 22,040 | 1,288,226 |
| 2015 | 582,203 | 197,124 | — | 180,892 | 6,001 | 1,343,348 |
| 2014 | 740,667 | 197,543 | — | 105,491 | 12,681 | 1,341,179 |
| 2013 | 723,712 | 223,636 | — | 106,355 | 23,600 | 1,446,184 |
| 2012 | 607,384 | 162,383 | — | 93,224 | 12,800 | 1,198,040 |
| 2011 | 506,400 | 208,460 | — | 67,088 | 24,000 | 1,087,700 |
| 2010 | 556,641 | 164,578 | — | 84,316 | 14,900 | 1,110,581 |
| 2009 | 626,656 | 197,659 | — | 122,422 | 18,600 | 1,370,150 |
| 2008 | 607,064 | 151,797 | — | 79,589 | 107,000 | 1,227,602 |
| 2007 | 444,877 | 124,732 | — | 60,524 | 91,500 | 973,865 |
| 2006 | 392,570 | 148,644 | — | 52,498 | 62,200 | 848,834 |
| 2005 | 450,779 | 130,676 | — | 56,361 | 62,000 | 934,308 |
| 2004 | 530,890 | 190,845 | — | 93,506 | 62,000 | 1,154,180 |
| 2003 | 571,167 | 130,788 | — | 61,455 | 120,000 | 1,239,699 |
| 2002 | 631,680 | 120,869 | — | 60,500 | 96,000 | 1,270,566 |
| 2001 | 782,033 | 100,696 | — | 57,429 | 140,000 | 1,342,186 |
| 2000 | 971,756 | 130,743 | — | 68,443 | 170,000 | 1,906,325 |
| 1999 | 862,332 | 130,915 | — | 78,634 | 81,000 | 1,482,970 |
| 1998 | 881,239 | 200,850 | — | 100,630 | 840,000 | 2,748,322 |
▎ 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.