DYNEGY MIDWEST GENERATION LLC
Quick Summary
- •Released 245,074 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
15260 STATE ROUTE 78
HAVANA, IL 62644
View on map ↗ - County
- MASON County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 2 · last Sep 9, 2025
- Total Penalties
- $0 · last Feb 23, 1999
- Registry ID
- 110000595794
How This Compares
Ranked by most recent year's total TRI releases.
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
Qtrs Non-Compliant
Qtrs Non-Compliant
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.
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 206,734 | — |
| 2016 | 595,855 | +188% |
| 2017 | 245,074 | -59% |
| 2018 | 316,635 | +29% |
| 2019 | 210,464 | -34% |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 171,279 | 10 | 1,412 | 169,857 | — | |
| Ammonia | 15,169 | 7,273 | 7,896 | — | — | |
| Manganese compounds | 7,871 | 10 | 273 | 7,588 | — | |
| Vanadium compounds | 5,920 | 5 | — | 5,915 | — | |
| Copper compounds | 4,135 | 5 | 33 | 4,097 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,447 | 3,447 | — | — | — | |
| Hydrogen fluoride | 2,101 | 2,101 | — | — | — | |
| Lead compounds | 517 | 2 | — | 515 | — | |
| Mercury compounds | 19 | 7 | 0 | 12 | — | |
| Xylene (mixed isomers) | 5 | 5 | — | — | — | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 260,993 | 24 | 361 | 260,607 | — | |
| Ammonia | 17,105 | 17,014 | 91 | — | — | |
| Manganese compounds | 11,968 | 10 | 368 | 11,590 | — | |
| Vanadium compounds | 9,166 | 5 | — | 9,161 | — | |
| Copper compounds | 7,384 | 14 | — | 7,370 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5,349 | 5,349 | — | — | — | |
| Hydrogen fluoride | 3,262 | 3,262 | — | — | — | |
| Lead compounds | 1,347 | 3 | — | 1,344 | 1,520 | |
| Mercury compounds | 42 | 12 | — | 31 | 0 | |
| Xylene (mixed isomers) | 16 | 16 | — | — | 5 | |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 188,819 | 15 | 1,685 | 187,119 | 6 | |
| Ammonia | 25,491 | 16,040 | 9,451 | — | — | |
| Manganese compounds | 8,897 | 6 | 335 | 8,556 | — | |
| Vanadium compounds | 6,655 | 5 | — | 6,650 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 5,503 | 5,503 | — | — | — | |
| Copper compounds | 5,333 | 11 | 39 | 5,283 | — | |
| Hydrogen fluoride | 3,356 | 3,356 | — | — | — | |
| Lead compounds | 967 | 2 | — | 965 | 2 | |
| Mercury compounds | 25 | 2 | 0 | 24 | — | |
| Xylene (mixed isomers) | 18 | 18 | — | — | — | |
| Naphthalene | 9 | 9 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 478,075 | 136 | 1,516 | 476,423 | — | |
| Ammonia | 37,306 | 28,922 | 8,384 | — | — | |
| Manganese compounds | 26,851 | 7,002 | 169 | 19,680 | — | |
| Vanadium compounds | 16,115 | 26 | — | 16,089 | — | |
| Copper compounds | 13,671 | 44 | 25 | 13,602 | — | |
| Zinc compounds | 9,819 | 318 | 276 | 9,225 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 6,564 | 6,564 | — | — | — | |
| Hydrogen fluoride | 3,749 | 3,749 | — | — | — | |
| Lead compounds | 3,590 | 15 | — | 3,575 | — | |
| Mercury compounds | 80 | 20 | — | 60 | 8 | |
| Xylene (mixed isomers) | 21 | 21 | — | — | 13 | |
| Naphthalene | 12 | 12 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 2 | 2 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 143,766 | 152 | 1,524 | 142,090 | — | |
| Ammonia | 44,661 | 37,455 | 7,206 | — | — | |
| Manganese compounds | 6,562 | 33 | 264 | 6,265 | — | |
| Vanadium compounds | 4,811 | 25 | — | 4,786 | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 3,937 | 3,937 | — | — | — | |
| Hydrogen fluoride | 2,244 | 2,244 | — | — | — | |
| Lead compounds | 705 | 14 | — | 691 | 25 | |
| Mercury compounds | 23 | 12 | — | 12 | 8 | |
| Xylene (mixed isomers) | 16 | 16 | — | — | 47 | |
| Naphthalene | 7 | 7 | — | — | — | ♦ Carcinogen |
| Polycyclic aromatic compounds | 1 | 1 | — | — | — | ♦ Carcinogen |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
| Benzo[g,h,i]perylene | 0 | 0 | — | — | — |
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 |
|---|---|---|---|---|
| Lead compounds | — | 1,520 | — | — |
| Hydrogen fluoride | — | — | — | 145,796 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 36,625 |
| Mercury compounds | — | 0 | — | — |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 60,680 |
| Ammonia | — | — | — | 38,948 |
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 |
|---|---|---|---|---|---|
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Naphthalene | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Copper compounds | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Naphthalene | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Manganese compounds | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Manganese compounds | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Dioxin and dioxin-like compounds | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Dioxin and dioxin-like compounds | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Ammonia | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Ammonia | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 4 | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2 | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Lead compounds | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Lead compounds | 2 | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Vanadium compounds | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Vanadium compounds | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Xylene (mixed isomers) | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Xylene (mixed isomers) | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Mercury compounds | — | — | — | — |
|
CLEAN HARBORS (SAFETY KLEEN)
EL DORADO, AR
|
Mercury compounds | — | — | — | — |
|
CLEAN HARBORS (SK)
SMITHFIELD, KY
|
Copper compounds | — | — | — | — |
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Schedule Event achieved late but reported | Aug 31, 2023 | — | Open |
| cwa | Schedule Event reported late | Sep 30, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Sep 30, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | May 31, 2005 | — | Open |
| cwa | Schedule Event achieved late but reported | May 31, 2004 | — | Open |
| cwa | Schedule Event unachieved but reported | May 31, 2004 | Nov 18, 2004 | Resolved |
| cwa | Schedule Event achieved late but reported | May 31, 2003 | — | Open |
| cwa | Schedule Event unachieved and not reported | May 31, 2003 | Mar 11, 2004 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 15, 2003 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 15, 2003 | Mar 1, 2004 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Dec 11, 2002 | Apr 21, 2003 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 31, 1993 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 30, 1993 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 30, 1993 | Dec 17, 1998 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 30, 1992 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 30, 1991 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 31, 1991 | — | Open |
| cwa | Schedule Event achieved late but reported | Apr 30, 1991 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 1991 | — | Open |
| cwa | Schedule Event achieved late but reported | Oct 31, 1990 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 31, 1990 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 1989 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Solids, total suspended | DMR, Limited - Numeric Violation | 60.00 mg/L | 30.00 | +100% | May 2021 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 20.30 mg/L | 15.00 | +35% | Jan 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 36.50 mg/L | 30.00 | +22% | Oct 2019 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.