Black Hills Corp
1 facility · 1 state · 8.7M lbs total releases
According to the EPA Toxics Release Inventory, Black Hills Corp is the reported parent of 1 Form R facility across 1 state, disclosing 8.7M lbs of toxic releases. 3 of 12 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Wyoming (8.7M lbs). Those TRI figures remain self-reported disclosure pounds for Black Hills Corp, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Black Hills Corp: EPA TRI 2023 reporting year
Same facilities, both years
-19.6%
1 facilities that filed in 2022 and 2023
Whole inventory
-19.6%
1.9 million lb → 1.5 million lb, every facility that filed
- Black Hills Corp's total reported releases fell from 1.9 million lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
- Black Hills Corp's land releases fell from 1.9 million lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Black Hills Corp from filing to facility
Black Hills Corp maps to a single Form R site (Black Hills Corp - Neil Simpson Complex) in Wyoming. Open that filing for the chemical mix; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Black Hills Corp - Neil Simpson Complex. Neighbor parents on the disclosure ladder: Dyno Nobel Inc; Berkshire Hathaway Inc; Western Midstream Partners LP; Hf Sinclair Corp. Largest disclosed chemicals by pounds: Barium And Barium Compounds; Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Manganese; Copper; Vanadium (except when contained in an alloy). Heaviest-reporting states in this extract: Wyoming. Industry labels on the parent rollup: Electric Utilities.
Black Hills Corp ranks #173 of 4,988 slug-merged TRI parents by disclosed release pounds, mid-to-upper among parents, not a top-25 volume name. Black Hills Corp's TRI Form R footprint is concentrated in a single state (Wyoming), so statewide context matters more than a multi-state portfolio read. This parent maps to a single reporting facility (Black Hills Corp - Neil Simpson Complex), so the company total and that site's Form R are the same disclosure.
Parent aggregation for Black Hills Corp follows facility-reported names. Compare the named neighbors (Dyno Nobel Inc; Berkshire Hathaway Inc; Western Midstream Partners LP) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Black Hills Corp sits among TRI parents
Black Hills Corp sits on a disclosure ladder beside Dyno Nobel Inc and Berkshire Hathaway Inc and Western Midstream Partners LP and Hf Sinclair Corp. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Dyno Nobel Inc · rank #171 · 27.1M lbs
- Berkshire Hathaway Inc · rank #172 · 21.2M lbs
Lower disclosed volume
- Western Midstream Partners LP · rank #174 · 2.2M lbs
- Hf Sinclair Corp · rank #175 · 1.8M lbs
Largest chemicals disclosed by Black Hills Corp
Barium And Barium Compounds; Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Manganese; Copper; Vanadium (except when contained in an alloy) lead the Form R pound rollup for this parent, including filings such as Black Hills Corp - Neil Simpson Complex. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Barium And Barium Compounds | 3.7M lbs |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2.9M lbs |
| Manganese | 482.9K lbs |
| Copper | 372.7K lbs |
| Vanadium (except when contained in an alloy) | 370.7K lbs |
Facilities (1)
| Facility | Releases |
|---|---|
| Black Hills Corp - Neil Simpson Complex Gillette, WY | 8.7M lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Black Hills Corp on total disclosed release pounds (8.7M lbs) and reporting facility count (1). Release-volume peers include Century Aluminum Co, The Goodyear Tire & Rubber Co, W R Grace & Co. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are Wyoming; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Black Hills Corp's TRI parent record
From Black Hills Corp, open Black Hills Corp - Neil Simpson Complex or compare against Dyno Nobel Inc rather than reading rank alone.
- Open the largest Form R site for Black Hills Corp (Black Hills Corp - Neil Simpson Complex in WY). Largest facility
- Compare against Berkshire Hathaway Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Black Hills Corp sits among all slug-merged TRI parents. All parent companies
Rank and peers (Dyno Nobel Inc, Berkshire Hathaway Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Black Hills Corp's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.