Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
NORTHERN INDIANA PUBLIC SERVICE COMPANY LLC - MICHIGAN CITY GENERATING STATION
Quick Summary
- •Released 82,707 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 $5,250 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
101 WABASH ST
MICHIGAN CITY, IN 46360
View on map ↗ - County
- LA PORTE County
- Industry
- Utilities
- NAICS (North American Industry Classification)
- 221112
- Inspections
- 6 · last Aug 11, 2025
- Total Penalties
- $5,250 · last Mar 5, 2024
- Registry ID
- 110000592154
How This Compares
#85
of 804 TRI reporters in IN
#279
of 584 TRI reporters in Utilities
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.
12
Air (CAA)
Qtrs Non-Compliant
Qtrs Non-Compliant
6
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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.
Emissions Trend (2015–2024)
-92% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 428,431 | — |
| 2016 | 207,899 | -51% |
| 2017 | 82,707 | -60% |
| 2018 | 245,599 | +197% |
| 2019 | 1,510 | -99% |
| 2020 | 5,035 | +233% |
| 2021 | 5,717 | +14% |
| 2022 | 6,288 | +10% |
| 2023 | 6,654 | +6% |
| 2024 | 33,775 | +408% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 28,503 | 28,503 | — | — | — | |
| Zinc compounds | 2,519 | 9 | 2,511 | — | 9,086 | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,610 | 240 | 1,369 | — | 187,800 | |
| Manganese compounds | 796 | 11 | 785 | — | 27,615 | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 109 | 109 | — | — | — | |
| Copper compounds | 87 | 13 | 74 | — | 8,114 | |
| Hydrogen fluoride | 65 | 65 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 44 | 6 | 38 | — | 13,280 | |
| Vanadium compounds | 18 | 18 | — | — | 11,428 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 11 | 11 | — | — | — | |
| Mercury compounds | 7 | 7 | 0 | — | 41 | |
| Lead compounds | 5 | 5 | — | — | 5,176 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 2,230 | 2,230 | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 2,002 | 184 | 1,818 | — | 494,927 | |
| Manganese compounds | 993 | 45 | 948 | — | 24,902 | |
| Zinc compounds | 725 | 40 | 685 | — | 18,945 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 221 | 221 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 191 | 191 | — | — | — | |
| Copper compounds | 126 | 25 | 101 | — | 25,785 | |
| Hydrogen fluoride | 112 | 112 | — | — | — | |
| Lead compounds | 20 | 20 | — | — | 10,168 | |
| Vanadium compounds | 17 | 17 | — | — | 47,594 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 9 | 9 | — | — | 14,011 | |
| Mercury compounds | 8 | 8 | — | — | 75 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 2,192 | 2,192 | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,852 | 180 | 1,672 | — | 524,940 | |
| Manganese compounds | 916 | 44 | 872 | — | 26,486 | |
| Zinc compounds | 669 | 39 | 630 | — | 20,116 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 216 | 216 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 171 | 171 | — | — | — | |
| Copper compounds | 118 | 25 | 93 | — | 27,363 | |
| Hydrogen fluoride | 101 | 101 | — | — | — | |
| Lead compounds | 19 | 19 | — | — | 10,795 | |
| Vanadium compounds | 17 | 17 | — | — | 50,537 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 9 | 9 | — | — | 14,902 | |
| Mercury compounds | 8 | 8 | — | — | 80 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 2,180 | 2,180 | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,583 | 207 | 1,376 | — | 514,346 | |
| Manganese compounds | 754 | 36 | 718 | — | 27,500 | |
| Zinc compounds | 563 | 45 | 518 | — | 20,174 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 208 | 208 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 170 | 170 | — | — | — | |
| Copper compounds | 106 | 29 | 77 | — | 27,110 | |
| Hydrogen fluoride | 101 | 101 | — | — | — | |
| Vanadium compounds | 19 | 19 | — | — | 50,689 | |
| Lead compounds | 15 | 15 | — | — | 10,799 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 10 | 10 | — | — | 15,473 | |
| Mercury compounds | 8 | 8 | — | — | 74 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Ammonia | 2,167 | 2,167 | — | — | — | |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,245 | 155 | 1,090 | — | 462,179 | |
| Manganese compounds | 594 | 25 | 569 | — | 23,792 | |
| Zinc compounds | 444 | 33 | 411 | — | 17,853 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 198 | 198 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 174 | 174 | — | — | — | |
| Hydrogen fluoride | 102 | 102 | — | — | — | |
| Copper compounds | 72 | 21 | 51 | — | 24,183 | |
| Vanadium compounds | 14 | 14 | — | — | 44,852 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 9 | 9 | — | — | 13,386 | |
| Lead compounds | 9 | 9 | — | — | 9,572 | |
| Mercury compounds | 7 | 7 | — | — | 126 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 1,270 | 93 | 1,177 | — | 302,114 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 235 | 235 | — | — | — | |
| Mercury compounds | 5 | 5 | — | — | 82 |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 185,516 | 124 | 1,464 | 183,928 | 543,360 | |
| Vanadium compounds | 18,140 | 11 | — | 18,129 | 53,555 | |
| Manganese compounds | 10,619 | 18 | 764 | 9,837 | 29,060 | |
| Copper compounds | 9,784 | 17 | 72 | 9,695 | 28,641 | |
| Zinc compounds | 7,794 | 27 | 552 | 7,215 | 21,315 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 5,548 | 13 | — | 5,535 | 16,351 | |
| Lead compounds | 3,867 | 5 | — | 3,862 | 11,410 | |
| Ammonia | 3,440 | 3,440 | — | — | — | |
| Hydrogen fluoride | 290 | 290 | — | — | — | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 279 | 279 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 262 | 262 | — | — | — | |
| Mercury compounds | 60 | 10 | — | 50 | 148 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 65,564 | 65 | 1,056 | 64,443 | 481,109 | |
| Vanadium compounds | 5,411 | 6 | — | 5,405 | 40,355 | |
| Manganese compounds | 3,551 | 10 | 551 | 2,990 | 22,325 | |
| Zinc compounds | 2,563 | 14 | 398 | 2,151 | 16,060 | |
| Ammonia | 2,180 | 2,180 | — | — | — | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 1,691 | 8 | — | 1,683 | 12,561 | |
| Lead compounds | 1,153 | 3 | — | 1,150 | 8,585 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 227 | 227 | — | — | — | |
| Hydrogen fluoride | 184 | 184 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 162 | 162 | — | — | — | |
| Mercury compounds | 21 | 6 | — | 15 | 110 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 107,246 | 211 | 1,409 | 105,626 | 590,412 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 43,505 | 43,505 | — | — | — | |
| Hydrogen fluoride | 15,212 | 15,212 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 10,948 | 10,948 | — | — | — | |
| Vanadium compounds | 8,891 | 20 | — | 8,871 | 49,587 | |
| Manganese compounds | 5,682 | 31 | 735 | 4,916 | 27,479 | |
| Copper compounds | 4,813 | 9 | 96 | 4,708 | 26,314 | |
| Zinc compounds | 4,107 | 45 | 531 | 3,531 | 19,735 | |
| Chromium compounds (except for chromite ore mined in the Transvaal Region) | 2,840 | 74 | — | 2,766 | 15,461 | |
| Ammonia | 2,720 | 2,720 | — | — | — | |
| Lead compounds | 1,899 | 12 | — | 1,887 | 10,548 | |
| Mercury compounds | 36 | 13 | — | 23 | 130 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 150,820 | 2,764 | 1,479 | 146,577 | 214,891 | |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 148,194 | 148,194 | — | — | — | |
| Hydrogen fluoride | 53,000 | 53,000 | — | — | — | |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 35,674 | 35,674 | — | — | — | |
| Vanadium compounds | 12,486 | 254 | — | 12,232 | 17,933 | |
| Manganese compounds | 7,798 | 304 | 772 | 6,722 | 9,855 | |
| Copper compounds | 6,492 | 118 | 101 | 6,273 | 9,197 | |
| Ammonia | 5,518 | 5,518 | — | — | — | |
| Zinc compounds | 5,517 | 92 | 557 | 4,868 | 7,137 | |
| Lead compounds | 2,840 | 237 | — | 2,603 | 3,817 | |
| Mercury compounds | 92 | 76 | — | 16 | 23 | |
| Dioxin and dioxin-like compounds | 0 | 0 | — | — | — | ♦ 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 |
|---|---|---|---|---|
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 26,773 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | — | — | — | 102,817 |
| Hydrogen fluoride | — | — | — | 61,158 |
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 |
|---|---|---|---|---|---|
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Mercury compounds | 41 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Zinc compounds | 9,086 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Vanadium compounds | 11,428 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Lead compounds | 5,176 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 187,800 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Chromium compounds (except for chromite ore mined in the Transvaal Region) | 13,280 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Manganese compounds | 27,615 | — | — | — |
|
NIPSCO RM SCHAHFER GENERATING STATION
WHEATFIELD, IN
|
Copper compounds | 8,114 | — | — | — |
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 |
|---|---|---|---|---|
| caa | FRV | Sep 30, 2025 | — | Open |
| caa | FRV | Jul 11, 2024 | — | Open |
| cwa | Monitoring Violations - Invalid/Unrepresentative Sample | Jan 2, 2024 | — | Open |
| caa | FRV | Jul 11, 2023 | — | Open |
| caa | HPV | Mar 21, 2023 | May 8, 2024 | Resolved |
| caa | FRV | Jul 11, 2022 | — | Open |
| caa | FRV | Oct 7, 2020 | — | Open |
| caa | FRV | Aug 11, 2020 | — | Open |
| caa | FRV | Jul 5, 2019 | — | Open |
| caa | FRV | Jul 31, 2018 | — | Open |
| rcra | Standards for Universal Waste Management: Standards for Small Quantity Handlers | Aug 15, 2017 | Jun 18, 2018 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Aug 15, 2017 | Jun 18, 2018 | Resolved |
| rcra | Standards for Used Oil: Generators | Dec 14, 2001 | Jul 17, 2002 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Dec 14, 2001 | Jul 17, 2002 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Nov 27, 2001 | Aug 5, 2002 | Resolved |
| rcra | Standards Applicable to Transporters of HW: Compliance with the Manifest System and Recordkeeping | Mar 23, 1992 | Oct 26, 1992 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 23, 1992 | Oct 26, 1992 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Jun 17, 1988 | Oct 6, 1988 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 11, 1987 | Jul 2, 1992 | Resolved |
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 |
|---|---|---|---|---|---|---|
| Oil and grease, hexane extr method | DMR, Limited - Numeric Violation | 29.00 mg/L | 20.00 | +45% | Feb 2023 | Open |
| Iron, total recoverable | DMR, Limited - Numeric Violation | 1.60 mg/L | 1.00 | +60% | Mar 2017 | Open |
| Iron, total recoverable | DMR, Limited - Numeric Violation | 1.60 mg/L | 1.00 | +60% | Mar 2017 | Open |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +100% | May 2016 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.02 mg/L | 0.01 | +100% | Apr 2016 | Resolved |
| Chlorine, total residual | DMR, Limited - Numeric Violation | 0.60 kg/d | 0.59 | +2% | Apr 2016 | Resolved |
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.
Administrative - Formal
Clean Air Act
· Case 3603921459 · Mar 5, 2024
$5,250
Notice of Violation
Clean Air Act
· Case 3603786136 · Nov 1, 2023
Judicial
· Case 05-2004-4533 · Jul 22, 2011
$3,500,000
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-009 · Jul 17, 2002
$9,000
PROPOSED AGREED ORDER (PAO) SENT
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-007 · Jun 26, 2002
PROPOSED AGREED ORDER (PAO) SENT
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-006 · Jun 10, 2002
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-005 · Feb 13, 2002
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-008 · Jan 24, 2002
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-004 · Jul 14, 1992
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-001 · Jun 23, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-IND000715375-002 · Dec 8, 1987
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