TRI Reporter
Clean Air Act
Clean Water Act
RCRA
PACIFICORP - HUNTER POWER PLANT
Quick Summary
- •Released 1,153,197 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
3 MILES SOUTH OF CASTLE DALE ON STATE HIGHWAY 10
CASTLE DALE, UT 84513
View on map ↗ - County
- EMERY County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 6 · last Apr 16, 2025
- Total Penalties
- $0
- Registry ID
- 110000600608
How This Compares
#7
of 213 TRI reporters in UT
#86
of 584 TRI reporters in Utilities
Ranked by most recent year's total TRI releases.
TRI Toxic Chemical Releases
Annual pounds of each toxic chemical released to air, water, and land, as reported to the EPA Toxic Release Inventory. Carcinogen (♦) and PFAS designations are per EPA and IARC classifications.
Emissions Trend (2015–2024)
+7% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 1,343,349 | — |
| 2016 | 1,288,227 | -4% |
| 2017 | 1,153,197 | -10% |
| 2018 | 1,005,347 | -13% |
| 2019 | 104,430 | -90% |
| 2020 | 1,309,661 | +1154% |
| 2021 | 1,528,999 | +17% |
| 2022 | 1,181,668 | -23% |
| 2023 | 1,348,954 | +14% |
| 2024 | 1,435,791 | +6% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,175,202 | 1,070 | — | 1,174,132 | — | |
| Manganese compounds | 84,281 | 186 | — | 84,095 | 35 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 39,192 | 132 | — | 39,060 | — | |
| Zinc compounds | 36,201 | 837 | — | 35,364 | 19,150 | |
| Vanadium compounds | 30,270 | 80 | — | 30,190 | — | |
| Nickel compounds | 25,176 | 119 | — | 25,057 | 347 | ♦ Carcinogen |
| Lead compounds | 20,118 | 76 | — | 20,042 | 50 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 11,290 | 11,290 | — | — | — | |
| Hydrogen fluoride | 10,360 | 10,360 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,269 | 3,269 | — | — | — | |
| Mercury compounds | 274 | 1 | — | 273 | 1 | |
| Naphthalene | 157 | 13 | — | 144 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,140,145 | 1,065 | — | 1,139,080 | — | |
| Manganese compounds | 67,884 | 165 | — | 67,719 | 34 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 35,257 | 127 | — | 35,130 | 7 | |
| Zinc compounds | 35,146 | 828 | — | 34,318 | 18,830 | |
| Vanadium compounds | 30,374 | 79 | — | 30,295 | — | |
| Lead compounds | 19,300 | 76 | — | 19,224 | 11 | |
| Hydrogen fluoride | 9,848 | 9,848 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 7,710 | 7,710 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 2,975 | 2,975 | — | — | — | |
| Mercury compounds | 190 | 2 | — | 189 | 1 | |
| Naphthalene | 124 | 13 | — | 111 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Chlorine | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 776,859 | 789 | — | 776,070 | — | |
| Manganese compounds | 131,544 | 309 | — | 131,235 | 4 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 55,529 | 209 | — | 55,320 | 9 | |
| Vanadium compounds | 47,806 | 131 | — | 47,675 | — | |
| Nickel compounds | 45,002 | 211 | — | 44,791 | 42 | ♦ Carcinogen |
| Copper compounds | 37,317 | 160 | — | 37,157 | 5,900 | |
| Zinc compounds | 34,505 | 1,177 | — | 33,328 | 2,299 | |
| Lead compounds | 27,607 | 118 | — | 27,489 | 3 | |
| Hydrogen fluoride | 10,970 | 10,970 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 10,220 | 10,220 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,103 | 4,103 | — | — | — | |
| Mercury compounds | 182 | 2 | — | 180 | 1 | |
| Naphthalene | 22 | 21 | — | 1 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 991,623 | 838 | — | 990,785 | — | |
| Manganese compounds | 141,853 | 312 | — | 141,541 | 3 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 89,181 | 271 | — | 88,910 | 1 | |
| Vanadium compounds | 60,253 | 148 | — | 60,105 | — | |
| Zinc compounds | 58,711 | 1,547 | — | 57,164 | 1,498 | |
| Copper compounds | 55,753 | 198 | — | 55,555 | 3,845 | |
| Nickel compounds | 50,830 | 230 | — | 50,600 | 27 | ♦ Carcinogen |
| Lead compounds | 38,407 | 141 | — | 38,266 | — | |
| Hydrogen fluoride | 20,470 | 20,470 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 17,100 | 17,100 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,635 | 4,635 | — | — | — | |
| Mercury compounds | 154 | 6 | — | 148 | 13 | |
| Naphthalene | 28 | 27 | — | 1 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 829,434 | 842 | — | 828,592 | 6 | |
| Manganese compounds | 121,331 | 287 | — | 121,044 | 13 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 85,934 | 264 | — | 85,670 | 11 | |
| Zinc compounds | 61,584 | 1,445 | — | 60,139 | 26,490 | |
| Nickel compounds | 56,798 | 234 | — | 56,564 | 134 | ♦ Carcinogen |
| Vanadium compounds | 52,501 | 136 | — | 52,365 | — | |
| Copper compounds | 41,002 | 167 | — | 40,835 | 18,960 | |
| Lead compounds | 21,907 | 100 | — | 21,807 | 270 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 18,720 | 18,720 | — | — | — | |
| Hydrogen fluoride | 16,140 | 16,140 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,084 | 4,084 | — | — | — | |
| Mercury compounds | 200 | 2 | — | 198 | 1 | |
| Naphthalene | 24 | 23 | — | 1 | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Nickel compounds | 61,672 | 138 | — | 61,534 | 203 | ♦ Carcinogen |
| Copper compounds | 37,666 | 98 | — | 37,568 | 28,720 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5,067 | 5,067 | — | — | — | |
| Naphthalene | 25 | 25 | — | — | — | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 503,238 | 251 | — | 502,987 | — | |
| Manganese compounds | 138,879 | 136 | — | 138,743 | 19 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 99,334 | 134 | — | 99,200 | — | |
| Nickel compounds | 59,195 | 123 | — | 59,072 | 187 | ♦ Carcinogen |
| Vanadium compounds | 52,723 | 63 | — | 52,660 | — | |
| Zinc compounds | 48,025 | 725 | — | 47,300 | 10,320 | |
| Copper compounds | 35,656 | 87 | — | 35,569 | 26,490 | |
| Lead compounds | 24,400 | 46 | — | 24,354 | 44 | |
| Hydrogen fluoride | 21,380 | 21,380 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 17,990 | 17,990 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,231 | 4,231 | — | — | — | |
| Mercury compounds | 272 | 4 | — | 267 | — | |
| Naphthalene | 23 | 23 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 510,041 | 355 | — | 509,686 | 32 | |
| Manganese compounds | 190,102 | 260 | — | 189,842 | 11 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 122,329 | 229 | — | 122,100 | 3 | |
| Zinc compounds | 84,103 | 1,281 | — | 82,822 | 6,232 | |
| Nickel compounds | 68,362 | 192 | — | 68,170 | 113 | ♦ Carcinogen |
| Vanadium compounds | 56,391 | 101 | — | 56,290 | — | |
| Copper compounds | 41,144 | 131 | — | 41,013 | 15,990 | |
| Lead compounds | 30,222 | 84 | — | 30,139 | 13 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 22,940 | 22,940 | — | — | — | |
| Hydrogen fluoride | 22,570 | 22,570 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,532 | 4,532 | — | — | — | |
| Mercury compounds | 435 | 5 | — | 430 | 45 | |
| Naphthalene | 24 | 24 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 682,340 | 446 | — | 681,894 | — | |
| Manganese compounds | 169,495 | 249 | — | 169,246 | 31 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 120,935 | 235 | — | 120,700 | — | |
| Nickel compounds | 77,256 | 210 | — | 77,046 | 315 | ♦ Carcinogen |
| Zinc compounds | 62,171 | 1,198 | — | 60,973 | 17,360 | |
| Vanadium compounds | 53,700 | 100 | — | 53,600 | — | |
| Copper compounds | 44,629 | 138 | — | 44,491 | 44,550 | |
| Lead compounds | 26,017 | 81 | — | 25,936 | 119 | |
| Hydrogen fluoride | 25,020 | 25,020 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 22,040 | 22,040 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 4,322 | 4,322 | — | — | — | |
| Mercury compounds | 277 | 14 | — | 263 | 15 | |
| Naphthalene | 24 | 24 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 582,203 | 492 | — | 581,711 | — | |
| Manganese compounds | 197,124 | 370 | — | 196,754 | 16 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 180,892 | 392 | — | 180,500 | 1 | |
| Nickel compounds | 114,194 | 330 | — | 113,864 | 161 | ♦ Carcinogen |
| Zinc compounds | 79,514 | 1,738 | — | 77,776 | 8,869 | |
| Vanadium compounds | 61,378 | 148 | — | 61,230 | — | |
| Copper compounds | 51,540 | 190 | — | 51,350 | 22,760 | |
| Hydrogen fluoride | 33,200 | 33,200 | — | — | — | |
| Lead compounds | 31,455 | 125 | — | 31,330 | 42 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,001 | 6,001 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5,531 | 5,531 | — | — | — | |
| Mercury compounds | 316 | 12 | — | 304 | 0 | |
| Dioxin and dioxin-like compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
Waste Management & Recycling
How this facility manages toxic chemicals beyond direct releases — through recycling, energy recovery, and on-site or off-site treatment. Data from the most recent TRI reporting year. Quantities in pounds.
| Chemical | Released | Recycled | Energy Recovery | Treated |
|---|---|---|---|---|
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 415,454 |
| Hydrogen fluoride | — | — | — | 310,248 |
| Nickel compounds | — | 347 | — | — |
| Zinc compounds | — | 19,150 | — | — |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 101,951 |
| Manganese compounds | — | 35 | — | — |
Off-Site Transfer Destinations
Facilities to which toxic chemicals were transferred for disposal, recycling, energy recovery, or treatment during the most recent TRI reporting year. Quantities in pounds.
| Destination | Chemical | Disposal | Recycling | Energy Rec. | Treatment |
|---|---|---|---|---|---|
|
UTAH METAL WORKS
SALT LAKE CITY, UT
|
Manganese compounds | — | 35 | — | — |
|
VEOLIA/ONYX SPECIAL SERVICES, INC.
PHOENIX, AZ
|
Mercury compounds | 1 | — | — | — |
|
UTAH METAL WORKS
SALT LAKE CITY, UT
|
Zinc compounds | — | 19,150 | — | — |
|
UTAH METAL WORKS
SALT LAKE CITY, UT
|
Nickel compounds | — | 347 | — | — |
|
US ECOLOGY OF IDAHO, INC.
GRAND VIEW, ID
|
Lead compounds | 47 | — | — | — |
|
PACIFIC WEST
SALT LAKE CITY, UT
|
Lead compounds | 1 | — | — | — |
|
ROCK CANYON OIL
AMERICAN FORK, UT
|
Lead compounds | 3 | — | — | — |
Other facilities in EMERY County, UT
HUNTINGTON DRUM SITE
HUNTINGTON, UT
· Transportation and Warehousing
NIELSON CONSTRUCTION LANDFILL
ORANGEVILLE, UT
ORANGEVILLE
, UT
LOVE'S GREEN RIVER EMPLOYEE HOUSING/APARTMENTS
GREEN RIVER, UT
HUNTINGTON
, UT
NORTH EMERY WATER USERS SPECIAL SERVICE DISTRICT
HUNTINGTON, UT