EmissionsLookup
Non-Compliance TRI Reporter Clean Air Act Clean Water Act RCRA

INDIANA KENTUCKY ELECTRIC CORPORATION - CLIFTY CREEK STATION

Quick Summary

  • •Released 1,984,518 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
1335 CLIFTY HOLLOW RD
MADISON, IN 47250
View on map ↗
County
JEFFERSON County
Industry
Utilities
NAICS (North American Industry Classification)
221112
Inspections
6 · last Mar 7, 2025
Total Penalties
$0 · last Dec 24, 2014
Registry ID
110000402314

How This Compares

#7 of 804 TRI reporters in IN
#42 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.

2
Air (CAA)
Qtrs Non-Compliant
7
Water (CWA)
Qtrs Non-Compliant
0
Hazardous Waste (RCRA)
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) -18% overall
Year Total Releases (lbs) vs Prior Year
2015 1,733,652 —
2016 1,699,466 -2%
2017 1,984,518 +17%
2018 2,279,682 +15%
2019 1,757,691 -23%
2020 1,051,241 -40%
2021 1,268,848 +21%
2022 1,530,245 +21%
2023 1,359,790 -11%
2024 1,427,260 +5%

2024

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) 709,387 709,387 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 163,603 162 — 163,441 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 159,828 159,828 — — —
Manganese compounds 94,648 352 49,910 44,386 —
Vanadium compounds 62,955 — — 62,955 —
Copper compounds 46,140 778 5,290 40,072 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 42,225 266 — 41,959 —
Zinc compounds 40,034 693 2,096 37,245 —
Hydrogen fluoride 31,647 31,647 — — —
Nickel compounds 30,855 238 1,023 29,594 — ♦ Carcinogen
Cobalt compounds 15,819 50 — 15,769 — ♦ Carcinogen
Lead compounds 15,013 119 — 14,894 —
Arsenic compounds 14,977 103 234 14,640 — ♦ Carcinogen
Mercury 126 38 0 88 —
Polycyclic aromatic compounds 2 2 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2023

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) 665,430 665,430 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 196,388 162 — 196,226 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 101,297 101,297 — — —
Vanadium compounds 74,462 — — 74,462 —
Manganese compounds 63,914 353 11,661 51,900 —
Copper compounds 49,703 788 4,877 44,038 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 47,548 263 — 47,285 —
Zinc compounds 43,680 696 1,200 41,784 —
Nickel compounds 36,554 238 609 35,707 — ♦ Carcinogen
Hydrogen fluoride 25,815 25,815 — — —
Cobalt compounds 20,836 50 — 20,786 — ♦ Carcinogen
Lead compounds 17,320 120 — 17,200 —
Arsenic compounds 16,726 104 101 16,521 — ♦ Carcinogen
Mercury 113 38 0 75 —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2022

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) 744,826 744,826 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 216,703 148 — 216,555 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 113,248 113,248 — — —
Vanadium compounds 84,513 — — 84,513 —
Manganese compounds 75,489 319 15,812 59,358 —
Copper compounds 54,481 755 4,952 48,774 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 53,052 236 20 52,796 —
Zinc compounds 52,140 606 408 51,126 —
Nickel compounds 39,500 208 693 38,599 — ♦ Carcinogen
Hydrogen fluoride 28,861 28,861 — — —
Cobalt compounds 23,678 44 — 23,634 — ♦ Carcinogen
Arsenic compounds 22,212 90 1,075 21,047 — ♦ Carcinogen
Lead compounds 21,401 105 109 21,187 —
Mercury 138 42 19 77 —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2021

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) 570,165 570,165 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 201,954 106 — 201,848 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 88,036 88,036 — — —
Vanadium compounds 79,115 — — 79,115 —
Manganese compounds 56,146 287 56 55,803 —
Copper compounds 54,984 738 9,796 44,450 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 50,483 211 20 50,252 —
Zinc compounds 49,361 540 408 48,413 —
Nickel compounds 36,784 185 693 35,907 — ♦ Carcinogen
Hydrogen fluoride 22,436 22,436 — — —
Arsenic compounds 20,696 73 1,076 19,548 — ♦ Carcinogen
Lead compounds 19,837 88 109 19,641 —
Cobalt compounds 18,713 36 — 18,677 — ♦ Carcinogen
Mercury 135 34 19 82 —
Polycyclic aromatic compounds 2 2 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

2020

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) 332,029 332,029 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 205,535 97 — 205,438 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 98,758 98,758 — — —
Vanadium compounds 80,989 — — 80,989 —
Manganese compounds 57,480 276 56 57,148 —
Copper compounds 55,533 731 9,771 45,032 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 51,539 203 27 51,308 —
Zinc compounds 51,048 514 404 50,130 —
Nickel compounds 37,276 176 667 36,433 — ♦ Carcinogen
Hydrogen fluoride 21,808 21,808 — — —
Arsenic compounds 21,256 68 20 21,168 — ♦ Carcinogen
Lead compounds 20,442 83 109 20,251 —
Cobalt compounds 17,406 34 — 17,372 — ♦ Carcinogen
Mercury 141 37 11 93 —
Polycyclic aromatic compounds 2 2 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

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) 678,417 678,417 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 330,594 112 — 330,482 —
Vanadium compounds 132,321 — — 132,321 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 115,487 115,487 — — —
Manganese compounds 93,303 308 56 92,939 —
Copper compounds 85,674 755 9,664 75,256 —
Zinc compounds 85,345 608 404 84,333 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 77,641 229 — 77,412 —
Nickel compounds 58,716 207 560 57,949 — ♦ Carcinogen
Arsenic compounds 37,307 79 0 37,228 — ♦ Carcinogen
Lead compounds 34,833 95 62 34,676 —
Cobalt compounds 27,853 40 — 27,813 — ♦ Carcinogen
Mercury 198 27 4 167 —
Polycyclic aromatic compounds 2 2 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ 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) 932,540 932,540 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 411,562 137 — 411,425 —
Vanadium compounds 154,514 — — 154,514 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 149,240 149,240 — — —
Manganese compounds 108,989 357 56 108,576 —
Copper compounds 101,545 790 9,780 90,975 —
Zinc compounds 99,319 746 414 98,159 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 88,571 268 22 88,281 —
Nickel compounds 68,474 253 688 67,534 — ♦ Carcinogen
Arsenic compounds 44,905 97 22 44,787 — ♦ Carcinogen
Cobalt compounds 42,488 49 — 42,439 — ♦ Carcinogen
Lead compounds 41,780 115 93 41,572 —
Hydrogen fluoride 35,479 35,479 — — —
Mercury 274 29 49 196 —
Polycyclic aromatic compounds 2 2 — — — ♦ Carcinogen
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) 878,052 878,052 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 358,185 95 — 358,090 —
Vanadium compounds 143,045 — — 143,045 —
Manganese compounds 100,543 309 56 100,178 —
Copper compounds 94,918 753 9,766 84,399 —
Zinc compounds 91,871 607 613 90,651 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 82,902 300 7 82,595 —
Nickel compounds 63,619 208 663 62,748 — ♦ Carcinogen
Cobalt compounds 43,414 38 — 43,376 — ♦ Carcinogen
Arsenic compounds 42,446 72 88 42,286 — ♦ Carcinogen
Lead compounds 39,188 88 125 38,976 —
Hydrogen fluoride 32,436 32,436 — — —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 13,644 13,644 — — —
Mercury 251 65 13 174 —
Polycyclic aromatic compounds 3 3 — — — ♦ 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) 679,382 679,382 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 286,791 137 — 286,654 —
Vanadium compounds 115,691 — — 115,691 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 107,471 107,471 — — —
Zinc compounds 91,498 636 434 90,428 —
Manganese compounds 81,883 334 56 81,493 —
Copper compounds 77,198 763 4,855 71,580 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 69,480 319 50 69,111 —
Nickel compounds 50,788 221 585 49,982 — ♦ Carcinogen
Cobalt compounds 44,814 44 — 44,770 — ♦ Carcinogen
Arsenic compounds 36,028 91 32 35,906 — ♦ Carcinogen
Lead compounds 32,705 107 136 32,463 —
Hydrogen fluoride 25,549 25,549 — — —
Mercury 183 28 10 146 —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ Carcinogen

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) 670,031 670,031 — — —
Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) 314,499 208 — 314,291 —
Vanadium compounds 122,930 — — 122,930 —
Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 107,459 107,459 — — —
Manganese compounds 86,850 479 56 86,315 —
Copper compounds 85,251 1,544 4,911 78,796 —
Zinc compounds 79,282 755 512 78,015 —
Chromium compounds (except for chromite ore mined in the Transvaal Region) 73,908 356 49 73,503 —
Nickel compounds 56,338 268 652 55,419 — ♦ Carcinogen
Cobalt compounds 39,485 57 — 39,428 — ♦ Carcinogen
Arsenic compounds 37,402 127 250 37,025 — ♦ Carcinogen
Lead compounds 34,306 142 155 34,010 —
Hydrogen fluoride 25,546 25,546 — — —
Mercury 360 191 19 150 —
Polycyclic aromatic compounds 3 3 — — — ♦ Carcinogen
Dioxin and dioxin-like compounds 1 1 — — — ♦ 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.

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 Mar 7, 2025 — Open
cwa Schedule Event unachieved but reported Dec 1, 2024 May 23, 2025 Resolved
cwa Schedule Event unachieved and not reported Dec 1, 2024 May 23, 2025 Resolved
cwa Schedule Event reported late Dec 1, 2024 — Open
cwa Schedule Event achieved late but reported Dec 1, 2024 — Open
cwa Monitoring Violations - Invalid/Unrepresentative Sample Apr 16, 2024 — Open
cwa Effluent Violations - Numeric effluent violation Apr 16, 2024 — Open
caa FRV Dec 12, 2023 — Open
caa FRV Dec 13, 2022 — Open
caa FRV Apr 25, 2022 — Open
caa FRV Apr 6, 2021 — Open
caa FRV Aug 15, 2018 — Open
caa HPV Jul 12, 2017 Nov 15, 2022 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Jun 16, 2008 Jul 15, 2008 Resolved
rcra Standards for Used Oil: Generators Apr 20, 1999 Jun 29, 1999 Resolved
cwa Schedule Event achieved late but reported Aug 1, 1994 — Open
cwa Schedule Event unachieved and not reported Aug 1, 1994 Sep 22, 1994 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jan 28, 1994 Jun 2, 1994 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
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +321% Oct 2023 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +602% Oct 2023 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +84% Apr 2023 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +11% Apr 2023 Open
Solids, total suspended DMR, Limited - Numeric Violation 168.00 mg/L 50.00 +236% Jul 2022 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +25% Feb 2021 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +81% Feb 2021 Open
Mercury, total recoverable DMR, Limited - Numeric Violation 0.00 mg/L 0.00 +51% 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.

WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-IND085048700-003 · Jul 15, 2008
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-IND085048700-002 · May 27, 1999
Administrative - Formal
· Case 05-1998-0829 · Mar 20, 1998
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-IND085048700-001 · Apr 13, 1994

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