EPA TRI Facility · Electric Utilities
Pacificorp Wyodak Plant
Gillette, WY · Parent: Berkshire Hathaway Inc
- Total releases
- 4.0M lbs
- Chemicals reported
- 19
- Carcinogens
- 2
- Primary pathway
- Off-site Transfers
OFFSITE Form-R mix
Pacificorp Wyodak Plant: how the 4.0M lbs splits
4.0M lbs across all reported pathways
- Off-site Transfers 3.9M lbs 98.9%
- Air Releases 43.3K lbs 1.1%
- Water Discharges 32 lbs <0.1%
Pacificorp Wyodak Plant's 4.0M lbs Form-R total is OFFSITE - off-site transfers is 98.9% of the bar. Next segment: air releases at 1.1%. Leading chemical by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
Carcinogen-classified pounds vs other reported pounds
Same cumulative TRI total as above, split by EPA/IARC carcinogen classification on each chemical: pounds share, not chemical count. Classification is not a site health-risk score.
HEAVY volume OFFSITE pathway TRACE-CARC
Pacificorp Wyodak Plant is an EPA Toxics Release Inventory reporter in Gillette, WY, in the electric utilities sector. It reported 560.6K lbs of releases across 12 chemicals in 2023, and 4.0M lbs in total across its 2019-2023 reporting years. That ranks 512 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Wyoming's 70 reporting TRI sites, pounds #1 is not chemical-count #1. Pacificorp Wyodak Plant is pounds #8 and chemical-count #9 at 4.0M lbs. Dyno Nobel Inc-Cheyenne Plant leads reported pounds (27.1M lbs) at 8 chemicals (chemical-count #19). Hf Sinclair Parco Refining LLC leads chemical count at 36 chemicals (1.5M lbs, pounds #10). Reported volume fell against 2022. Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Black Hills Corp - Neil Simpson Complex; Joy Global Gillette Wy; 50 Buttes; Basin Electric Dry Fork Station. Similar-scale Electric Utilities peers outside Wyoming: Edwards Power Station; American Electric Power Kammer/mitchell Plant; American Electric Power John W. Turk Jr Plant; Ameren Missouri Sioux Energy Center. Other Berkshire Hathaway Inc sites in this extract: Cerro Wire LLC; Midamerican Energy Co Walter Scott Jr Energy Center; Pacificorp Dave Johnston Plant; Pacificorp Jim Bridger Plant & Bridger Coal Co. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Barium And Barium Compounds; Manganese compounds; Vanadium compounds.
Pacificorp Wyodak Plant stamps HEAVY volume with a dominant OFFSITE pathway (98.9% off-site transfers) across 19 chemicals · 2 carcinogen-classified. Cumulative Form-R extract: 4.0M lbs (2019–2023). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Edwards Power Station and American Electric Power Kammer/mitchell Plant.
Pacificorp Wyodak Plant vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
4.0M lbs Top 2% higher than 98% of 25,986 reporting TRI facilities
Each bar is a $1M-wide band; taller bars hold more reporting TRI facilities. The dashed line and filled bar mark this facility. Hover, focus, or tap a bar for its full count, share, and position.
Source U.S. Environmental Protection Agency, Toxics Release Inventory · 2023 reporting year
Pacificorp Wyodak Plant in the Electric Utilities sector extract
Among the 513 Electric Utilities facilities in this database, Pacificorp Wyodak Plant reports the 96th-largest volume, placing it in the top 18.7% of its sector. Scale peers outside Wyoming include Edwards Power Station and American Electric Power Kammer/mitchell Plant.
Sector rank uses reported TRI pounds only. Share callouts need ≥1,000 lbs so tiny totals cannot mint a false signal.
Annual disclosure change
What changed: EPA TRI 2023 reporting year
- Pacificorp Wyodak Plant's total reported releases fell from 1.0 million lb in 2022 to 560.6 thousand lb in 2023, based on EPA TRI filings.
- Pacificorp Wyodak Plant's off-site transfers fell from 1.0 million lb in 2022 to 552.5 thousand lb in 2023, based on EPA TRI filings.
- Pacificorp Wyodak Plant's air releases fell from 9.7 thousand lb in 2022 to 8.1 thousand lb in 2023, based on EPA TRI filings.
- Pacificorp Wyodak Plant's chemicals reported fell from 14 in 2022 to 12 in 2023, based on EPA TRI filings.
Pacificorp Wyodak Plant Form-R facts
Compare this facility
See how Pacificorp Wyodak Plant stacks up against nearby facilities and the typical reporter.
54% less than the comparison
58% more than the comparison
Comparison reflects reported pounds and chemical counts, not toxicity or health risk. Averages cover facilities reporting any release.
How does this facility release toxic chemicals?
How Pacificorp Wyodak Plant releases toxic chemicals into the environment. Total: 4.0M lbs.
Emissions Trend Summary
From 2019 to 2023, total releases decreased by 36% (872.9K lbs to 560.6K lbs).
Pacificorp Wyodak Plant: annual Form-R pounds
HEAVY site · OFFSITE pathway · TRI years 2019–2023
- 2019
- 2020
- 2021
- 2022
- 2023
What this shows Pacificorp Wyodak Plant year-over-year reported totals (decreased by 36% from 2019 to 2023). TRI figures are self-reported estimates and can swing with production, waste handling, and reporting changes, not only with controls. Lead chemical in the extract: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
| Year | Total | Chemicals |
|---|---|---|
| 2019 | 872.9K lbs | 11 |
| 2020 | 844.4K lbs | 12 |
| 2021 | 679.0K lbs | 12 |
| 2022 | 1.0M lbs | 14 |
| 2023 | 560.6K lbs | 12 |
Chemical Releases
Aggregated across all reporting years (2019–2023). 2 of 19 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2.0M lbs | - |
| Barium And Barium Compounds | 1.2M lbs | - |
| Manganese compounds | 139.4K lbs | - |
| Vanadium compounds | 115.8K lbs | - |
| Zinc compounds | 114.4K lbs | - |
| Manganese And Manganese Compounds | 91.4K lbs | - |
| Copper And Copper Compounds | 65.8K lbs | - |
| Copper compounds | 54.3K lbs | - |
| Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 44.5K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 26.1K lbs | - |
| Nickel And Nickel Compounds | 19.5K lbs | Carcinogen |
| Lead And Lead Compounds | 15.2K lbs | - |
| Lead compounds | 14.5K lbs | - |
| Hydrogen fluoride | 12.5K lbs | - |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 952 lbs | - |
| Mercury compounds | 702 lbs | - |
| Mercury And Mercury Compounds | 457 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
| Chlorine | 0 lbs | - |
Pacificorp Wyodak Plant · OFFSITE-pathway site
Nearest TRI Facilities to Pacificorp Wyodak Plant
Closest other reporters in Wyoming - including Black Hills Corp - Neil Simpson Complex, Joy Global Gillette Wy, 50 Buttes, ordered by distance.
Showing 8 of 69 other reporting facilities in Wyoming.
Similar Electric Utilities Facilities
Other Electric Utilities facilities with similar total release volumes (±80%), outside Wyoming - e.g. Edwards Power Station, American Electric Power Kammer/mitchell Plant, American Electric Power John W. Turk Jr Plant.
Compare beyond Wyoming
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Pacificorp Wyodak Plant on cumulative reported pounds (4.0M lbs) and distinct chemical count (19). Release-pound peers include Edwards Power Station, International Paper- New Bern Mill, Optimus Steel LLC. Chemical-count peers include Allnex USA Inc. Wallingford Ct Site, Johnson Matthey, Colver Green Energy. Neighborhoods are forced disjoint so each axis surfaces a different set of sites.
Similar reported release pounds
Nearest out-of-state reporters (≥1,000 lbs) by absolute TRI pounds, not same-industry or same-county neighbors.
Similar chemical count
Nearest out-of-state reporters by distinct Form-R chemicals (deduped against the release-pound neighborhood).
Other Berkshire Hathaway Inc Facilities
Same-parent TRI sites ranked by reported releases - including Cerro Wire LLC, Midamerican Energy Co Walter Scott Jr Energy Center, Pacificorp Dave Johnston Plant.
About TRI Data
Data as of 2023 reporting year. Source: U.S. Environmental Protection Agency (EPA) Toxic Release Inventory.
On this page the largest disclosed chemicals include Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Barium And Barium Compounds, Manganese compounds, Vanadium compounds; nearby reporters include Black Hills Corp - Neil Simpson Complex. Pacificorp Wyodak Plant stamps HEAVY volume · OFFSITE pathway · TRACE-CARC carcinogen-lbs on this Form-R extract. Totals are self-reported estimates under EPCRA §313, not measured stack emissions or a health-risk score.
Use and verify this record
This Pacificorp Wyodak Plant TRI extract (HEAVY · OFFSITE · TRACE-CARC · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7))) joins EPA Form-R filings with facility identity - reported pounds, not a health-risk rating.
Pacificorp Wyodak Plant totals are self-reported EPCRA §313 estimates for Gillette, WY, latest year 2023. Form-R rows span 2019–2023 (5 years). NAICS 221112 · Electric Utilities. 20.7% of Campbell TRI pounds in this extract. Nearest ABS peer: Edwards Power Station (Δ 1.7K lbs). Pounds ≠ exposure.
Pacificorp Wyodak Plant stamps HEAVY volume · OFFSITE pathway · TRACE-CARC · lead Barium compounds (except for barium sulfate (CAS No. 7727-43-7)). PlainEnviro renders this EPA Form-R extract from its pipeline; no figure is typed in by an editor. Corrections: editorial policy.
All federal data sources used on this page
- EPA Toxics Release Inventory (TRI) Basic Data Files - annual self-reported chemical-release filings. epa.gov
- EPA TRI Program reference - how chemicals and reported releases are counted. epa.gov
- EPA Facility Registry Service - facility location and identity. epa.gov
- EPA ECHO - regulatory and compliance context. epa.gov
- EPA Envirofacts - the EPA data warehouse exposing these datasets. epa.gov