EPA TRI Facility · Electric Utilities
Hennepin Power Station
Hennepin, IL · Parent: Dynegy Inc
- Total releases
- 299.4K lbs
- Chemicals reported
- 9
- Carcinogens
- 1
- Primary pathway
- Land Disposal
LAND Form-R mix
Hennepin Power Station: how the 299.4K lbs splits
299.4K lbs across all reported pathways
- Land Disposal 282.2K lbs 94.3%
- Air Releases 16.2K lbs 5.4%
- Water Discharges 866 lbs 0.3%
- Off-site Transfers 76 lbs <0.1%
Hennepin Power Station's 299.4K lbs Form-R total is LAND - land disposal is 94.3% of the bar. Next segment: air releases at 5.4%. Leading chemical by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)).
MID volume LAND pathway TRACE-CARC
Hennepin Power Station is an EPA Toxics Release Inventory reporter in Hennepin, IL, in the electric utilities sector. It reported 299.4K lbs of releases across 9 chemicals in 2019. That ranks 2,590 of 25,986 TRI facilities nationwide by cumulative reported pounds, counting each facility over however many years it has filed. In Illinois's 951 reporting TRI sites, pounds #1 is not chemical-count #1. Hennepin Power Station is pounds #106 and chemical-count #102 at 299.4K lbs. Prairie State Generating Co leads reported pounds (37.9M lbs) at 31 chemicals (chemical-count #8). Veolia N.a. Inc. leads chemical count at 141 chemicals (1.9M lbs, pounds #34). Pounds reported are not a measure of toxicity or health risk. Nearest other TRI reporters: Marquis Energy LLC; Marquis Xt LLC; Washington Mills Hennepin Inc; American Nickeloid Co. Similar-scale Electric Utilities peers outside Illinois: Astoria Energy Power Generation Facility; Hibbard Renewable Energy Center; Charles R Lowman Power Plant; Sunnyside Cogeneration Associates. Other Dynegy Inc sites in this extract: Havana Power Station. Largest disclosed chemicals by pounds: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)); Manganese compounds; Hydrogen fluoride; Vanadium compounds.
Hennepin Power Station stamps MID volume with a dominant LAND pathway (94.3% land disposal) across 9 chemicals · 1 carcinogen-classified. Cumulative Form-R extract: 299.4K lbs (2019–2019). All figures are self-reported EPCRA §313 estimates, not measured stack emissions or a health-risk score. Scale peers include Astoria Energy Power Generation Facility and Hibbard Renewable Energy Center.
Hennepin Power Station vs. every reporting TRI facility
Cumulative reported release pounds, with this facility marked in the national distribution
299K lbs Top 10% higher than 90% 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
Hennepin Power Station inside Putnam's TRI pounds
Among the 513 Electric Utilities facilities in this database, Hennepin Power Station reports the 266th-largest volume (299.4K lbs). This one site accounts for 43.5% of every pound reported in Putnam. Its reported volume is concentrated rather than spread: Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) alone is 87.3% of the total. Scale peers outside Illinois include Astoria Energy Power Generation Facility and Hibbard Renewable Energy Center.
County-dominant here means ≥25% of Putnam's reported pounds (687.8K lbs county total). Shares only print when the site reports ≥1,000 lbs.
Hennepin Power Station Form-R facts
Compare this facility
See how Hennepin Power Station stacks up against nearby facilities and the typical reporter.
23% more than the comparison
36% less 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 Hennepin Power Station releases toxic chemicals into the environment. Total: 299.4K lbs.
Chemical Releases
Aggregated across all reporting years (2019–2019). 1 of 9 chemicals are carcinogens. Sorted by total release volume.
| Chemical | Total | Flags |
|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 261.5K lbs | - |
| Manganese compounds | 11.2K lbs | - |
| Hydrogen fluoride | 9.4K lbs | - |
| Vanadium compounds | 9.2K lbs | - |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5.9K lbs | - |
| Lead compounds | 1.8K lbs | - |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 375 lbs | - |
| Mercury compounds | 43 lbs | - |
| Dioxin and dioxin-like compounds | 0 lbs | Carcinogen |
Hennepin Power Station · LAND-pathway site
Nearest TRI Facilities to Hennepin Power Station
Closest other reporters in Illinois - including Marquis Energy LLC, Marquis Xt LLC, Washington Mills Hennepin Inc, ordered by distance.
Showing 8 of 950 other reporting facilities in Illinois.
Similar Electric Utilities Facilities
Other Electric Utilities facilities with similar total release volumes (±80%), outside Illinois - e.g. Astoria Energy Power Generation Facility, Hibbard Renewable Energy Center, Charles R Lowman Power Plant.
Compare beyond Illinois
Nationwide peers by reported pounds & chemical count
Cross-state TRI reporters nearest Hennepin Power Station on cumulative reported pounds (299.4K lbs) and distinct chemical count (9). Release-pound peers include Triton Boats, 409 - Redwing Oilseeds Plant, Tidewater Boats LLC. Chemical-count peers include Viatris Pharmaceuticals LLC, Prepa - San Juan Steam Plant, Solutia Inc. 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).
- Viatris Pharmaceuticals LLC Barceloneta, PR · Chemicals 9 chemicals
- Prepa - San Juan Steam Plant Puerto Nuevo, PR · Electric Utilities 9 chemicals
- Solutia Inc Springfield, MA · Plastics and Rubber 9 chemicals
- O'Connell Oil Co Merrill Road Facility Pittsfield, MA · Petroleum Bulk Terminals 9 chemicals
Other Dynegy Inc Facilities
Same-parent TRI sites ranked by reported releases - including Havana Power Station.
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)), Manganese compounds, Hydrogen fluoride, Vanadium compounds; nearby reporters include Marquis Energy LLC. Hennepin Power Station stamps MID volume · LAND 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 Hennepin Power Station TRI extract (MID · LAND · 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.
Hennepin Power Station totals are self-reported EPCRA §313 estimates for Hennepin, IL, latest year 2019. NAICS 221112 · Electric Utilities. 43.5% of Putnam TRI pounds in this extract. Nearest ABS peer: Triton Boats (Δ 144 lbs). Pounds ≠ exposure.
Hennepin Power Station stamps MID volume · LAND 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