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

CENTURY ALUMINUM SEBREE LLC

Quick Summary

  • Released 662,620 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 $6,000 in total penalties since records began.
  • Reports releases of chemicals classified as known or probable carcinogens.
Address
9404 KY 2096
ROBARDS, KY 42452
View on map ↗
County
HENDERSON County
Industry
Manufacturing
NAICS (North American Industry Classification)
331313
Inspections
11 · last Feb 17, 2026
Total Penalties
$6,000 · last Jan 6, 2023
Registry ID
110038162118

How This Compares

#19 of 398 TRI reporters in KY
#299 of 16,877 TRI reporters in Manufacturing

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.

1
Air (CAA)
Qtrs Non-Compliant
4
Water (CWA)
Qtrs Non-Compliant
12
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) -15% overall
Year Total Releases (lbs) vs Prior Year
2015 598,372
2016 656,298 +10%
2017 662,620 +1%
2018 584,732 -12%
2020 600,372
2021 537,241 -11%
2022 540,607 +1%
2023 573,425 +6%
2024 509,495 -11%

2024

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 263,307 263,307
Hydrogen fluoride 130,682 130,682
Naphthalene 91,678 91,678 ♦ Carcinogen
Polycyclic aromatic compounds 17,484 17,484 ♦ Carcinogen
Manganese compounds 4,829 4,660 138 31 1,513
Nickel compounds 946 919 27 0 136 ♦ Carcinogen
Benzo[g,h,i]perylene 327 327
Lead compounds 229 223 6 0
Copper 12 1 11 0

2023

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 283,870 283,870
Hydrogen fluoride 174,198 174,198
Naphthalene 90,433 90,433 ♦ Carcinogen
Polycyclic aromatic compounds 17,772 17,772 ♦ Carcinogen
Manganese compounds 4,745 4,616 98 31 1,815
Nickel compounds 930 911 19 0 163 ♦ Carcinogen
Chromium 920 916 4 0 435
Benzo[g,h,i]perylene 322 322
Lead compounds 226 221 4 0
Copper 9 1 8 0

2022

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 275,632 275,632
Hydrogen fluoride 154,851 154,851
Naphthalene 85,202 85,202 ♦ Carcinogen
Polycyclic aromatic compounds 17,727 17,727 ♦ Carcinogen
Manganese compounds 4,789 4,650 109 31 2,100
Nickel compounds 939 918 21 0 189 ♦ Carcinogen
Chromium 927 922 5 0 504
Benzo[g,h,i]perylene 302 302
Lead compounds 228 223 5 0
Copper 10 1 9 0

2021

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 241,879 241,879
Hydrogen fluoride 208,695 208,695
Naphthalene 66,553 66,553 ♦ Carcinogen
Polycyclic aromatic compounds 14,116 14,116 ♦ Carcinogen
Manganese compounds 4,620 4,491 100 30 2,282
Nickel compounds 906 887 20 0 205 ♦ Carcinogen
Benzo[g,h,i]perylene 242 242
Lead compounds 220 215 4 0
Copper 9 1 8 0

2020

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 255,556 255,556
Hydrogen fluoride 223,932 223,932
Polycyclic aromatic compounds 73,556 73,556 ♦ Carcinogen
Naphthalene 29,285 29,285 ♦ Carcinogen
Phenanthrene 7,838 7,838
Benzo[g,h,i]perylene 4,565 4,565
Manganese compounds 4,525 4,367 129 29 2,103
Nickel compounds 888 862 25 0 189 ♦ Carcinogen
Lead compounds 215 209 6 0
Copper 12 1 10 0

2018

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 251,119 251,119
Hydrogen fluoride 213,180 213,180
Polycyclic aromatic compounds 73,392 73,392 ♦ Carcinogen
Naphthalene 29,224 29,224 ♦ Carcinogen
Phenanthrene 7,625 7,625
Benzo[g,h,i]perylene 4,550 4,550
Manganese compounds 4,527 4,358 141 29 2,227
Nickel compounds 887 860 28 0 200 ♦ Carcinogen
Lead compounds 215 209 6 0
Copper 12 1 11 0

2017

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 310,467 310,467
Hydrogen fluoride 220,715 220,715
Polycyclic aromatic compounds 80,028 80,028 ♦ Carcinogen
Naphthalene 31,863 31,863 ♦ Carcinogen
Phenanthrene 8,525 8,525
Benzo[g,h,i]perylene 4,966 4,966
Manganese compounds 4,864 4,752 84 29 1,994
Nickel compounds 954 937 16 0 180 ♦ Carcinogen
Lead compounds 232 228 4 0
Copper 8 1 7 0

2016

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 310,623 310,623
Hydrogen fluoride 216,722 216,722
Polycyclic aromatic compounds 78,498 78,498 ♦ Carcinogen
Naphthalene 31,255 31,255 ♦ Carcinogen
Phenanthrene 8,308 8,308
Benzo[g,h,i]perylene 4,870 4,870
Manganese compounds 4,831 4,661 142 29 2,886
Nickel compounds 948 920 28 0 260 ♦ Carcinogen
Lead compounds 230 223 6 0
Copper 12 1 11 0

2015

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 301,430 301,430
Hydrogen fluoride 167,945 167,945
Polycyclic aromatic compounds 78,560 78,560 ♦ Carcinogen
Naphthalene 31,284 31,284 ♦ Carcinogen
Phenanthrene 8,252 8,252
Benzo[g,h,i]perylene 4,871 4,871
Manganese compounds 4,838 4,665 145 28 5,357
Nickel compounds 950 921 28 0 482 ♦ Carcinogen
Lead compounds 230 223 6 0
Copper 13 1 12 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
Naphthalene 2,035,395
Nickel compounds 1,182,845
Benzo[g,h,i]perylene 5,024
Hydrogen fluoride 227,173
Manganese compounds 10,546
Lead compounds 5,185
Polycyclic aromatic compounds 146,841

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
SCEPTER INCORPORATED BICKNELL OPERATIONS
BICKNELL, IN
Manganese compounds 1,513
SCEPTER INCORPORATED BICKNELL OPERATIONS
BICKNELL, IN
Nickel compounds 136

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 Aug 7, 2025 Open
cwa Permit Violations - Violation Specified in Comment Mar 23, 2023 Open
cwa Management Practice Violations - Improper Operation and Maintenance Mar 23, 2023 Open
rcra Standards Applicable to Generators of HW: General Dec 2, 2021 Mar 9, 2022 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs Dec 2, 2021 Dec 2, 2021 Resolved
rcra Standards for Used Oil: Generators Dec 2, 2021 Dec 2, 2021 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs Dec 1, 2021 Sep 20, 2022 Resolved
rcra Standards Applicable to Generators of HW: General Dec 1, 2021 Mar 9, 2022 Resolved
rcra Standards for Used Oil: Generators Dec 1, 2021 Mar 9, 2022 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs Jul 7, 2020 Aug 13, 2020 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs Jul 6, 2020 Aug 13, 2020 Resolved
rcra Standards Applicable to Generators of HW: General Jul 6, 2020 Jul 7, 2020 Resolved
rcra Standards for Used Oil: Generators Jul 6, 2020 Jul 6, 2020 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Jul 6, 2020 Jul 6, 2020 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Sep 8, 2016 Sep 8, 2016 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jul 23, 2014 Jul 23, 2014 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Jul 23, 2014 Sep 29, 2015 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Preparedness and Prevention Jul 23, 2014 Jul 23, 2014 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards Jul 23, 2014 Aug 25, 2014 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Jul 23, 2014 Aug 8, 2014 Resolved
rcra Standards for Used Oil: Generators Jul 23, 2014 Jul 23, 2014 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Jul 23, 2014 Sep 29, 2015 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Jul 23, 2014 Sep 29, 2015 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Jul 23, 2014 Aug 7, 2014 Resolved
cwa Schedule Event unachieved and not reported Dec 15, 2010 Mar 16, 2011 Resolved
rcra Standards Applicable to Generators of HW: General Aug 18, 2009 Nov 23, 2009 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: General Facility Standards Aug 18, 2009 Nov 23, 2009 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Aug 18, 2009 Nov 23, 2009 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Aug 18, 2009 Nov 23, 2009 Resolved
rcra Standards for Used Oil: Generators Aug 18, 2009 Nov 23, 2009 Resolved
rcra Land Disposal Restrictions: General Mar 10, 2003 Apr 4, 2003 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Feb 22, 2000 Mar 9, 2000 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Feb 22, 2000 Mar 9, 2000 Resolved
rcra Standards for Owners and Operators of HW TSDs: Financial Requirements Apr 20, 1999 May 24, 1999 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators May 20, 1998 May 20, 1998 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jun 25, 1997 Jul 8, 1997 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Feb 1, 1995 Mar 28, 1996 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Mar 14, 1994 Aug 12, 1994 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Mar 14, 1994 May 16, 1994 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Oct 23, 1992 Dec 14, 1992 Resolved
rcra Land Disposal Restrictions: General Oct 23, 1992 Dec 7, 1992 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Oct 23, 1992 Mar 3, 1993 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Apr 29, 1992 Oct 23, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards Apr 29, 1992 Oct 23, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards Jul 10, 1991 Apr 29, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: Closure and Post-Closure Jul 10, 1991 Apr 29, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: Waste Piles Jul 10, 1991 Feb 1, 1995 Resolved
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators Jul 10, 1991 Apr 29, 1992 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Jul 10, 1991 May 16, 1992 Resolved
rcra Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures Jul 10, 1991 Apr 29, 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
Solids, total suspended DMR, Limited - Numeric Violation 49.15 mg/L 30.00 +64% Jan 2023 Open
Iron, total recoverable DMR, Limited - Numeric Violation 8.48 mg/L 4.00 +112% Jan 2023 Resolved
Iron, total recoverable DMR, Limited - Numeric Violation 7.16 mg/L 4.00 +79% Sep 2022 Resolved
Iron, total recoverable DMR, Limited - Numeric Violation 5.52 mg/L 4.00 +38% Jul 2022 Open
Iron, total recoverable DMR, Limited - Overdue 4.48 mg/L 4.00 +12% May 2022 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 34.50 mg/L 30.00 +15% May 2022 Open
Solids, total suspended DMR, Limited - Overdue 34.50 mg/L 30.00 +15% May 2022 Resolved
Iron, total recoverable DMR, Limited - Numeric Violation 4.48 mg/L 4.00 +12% May 2022 Open
Solids, total suspended DMR, Limited - Numeric Violation 30.60 mg/L 30.00 +2% Apr 2022 Open
Iron, total recoverable DMR, Limited - Numeric Violation 7.64 mg/L 4.00 +91% Mar 2022 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 46.30 mg/L 30.00 +54% Mar 2022 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 43.53 mg/L 30.00 +45% Dec 2021 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 116.00 mg/L 50.00 +132% Dec 2021 Open
Iron, total recoverable DMR, Limited - Numeric Violation 5.64 mg/L 4.00 +41% Nov 2021 Resolved
Iron, total recoverable DMR, Limited - Numeric Violation 4.51 mg/L 4.00 +13% Oct 2021 Resolved
Chlorine, total residual DMR, Limited - Numeric Violation 0.02 mg/L 0.01 +64% Jul 2020 Open
Solids, total suspended DMR, Limited - Numeric Violation 51.60 mg/L 50.00 +3% Dec 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 31.40 mg/L 30.00 +5% Oct 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 34.05 mg/L 30.00 +14% Sep 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 54.90 mg/L 50.00 +10% Feb 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 53.40 mg/L 50.00 +7% Jan 2019 Open
Solids, total suspended DMR, Limited - Numeric Violation 52.00 mg/L 50.00 +4% Dec 2018 Open
Iron, total recoverable DMR, Limited - Numeric Violation 5.74 mg/L 4.00 +44% Nov 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 62.50 mg/L 50.00 +25% Nov 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 31.82 mg/L 30.00 +6% Apr 2018 Open
Iron, total recoverable DMR, Limited - Numeric Violation 5.74 mg/L 4.00 +44% Apr 2018 Open
Solids, total suspended DMR, Limited - Numeric Violation 69.80 mg/L 50.00 +40% Apr 2018 Open
Iron, total recoverable DMR, Limited - Numeric Violation 4.85 mg/L 4.00 +21% May 2017 Open
Solids, total suspended DMR, Limited - Numeric Violation 58.40 mg/L 50.00 +17% Mar 2017 Open
Solids, total suspended DMR, Limited - Numeric Violation 58.00 mg/L 50.00 +16% Mar 2017 Open
Oil and grease DMR, Limited - Numeric Violation 16.00 mg/L 15.00 +7% May 2016 Open
Solids, total suspended DMR, Limited - Numeric Violation 35.00 mg/L 30.00 +17% Apr 2016 Open
Solids, total suspended DMR, Limited - Overdue 52.00 mg/L 50.00 +4% Oct 2015 Resolved
Solids, total suspended DMR, Limited - Numeric Violation 52.00 mg/L 50.00 +4% Oct 2015 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.

State Administrative Order of Consent
Clean Water Act · Case KY-DOW-22-3-0192 · Jan 6, 2023
$6,000
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste) · Case RCRA-KYD058692526-002 · Sep 29, 2015
Administrative - Formal
· Case 04-2015-4014 · Sep 29, 2015
$69,000
Judicial
· Case 04-2010-9008 · Aug 1, 2013
$100,000
State Administrative Order of Consent
Clean Water Act · Case KY-DOW-110276 · Aug 8, 2012
$10,000
State Administrative Order of Consent
Clean Water Act · Case KY-N00005427 · Sep 24, 2010
$5,500
Administrative - Formal
· Case 04-2005-9908 · Dec 6, 2005
VERBAL INFORMAL
RCRA (Hazardous Waste) · Case RCRA-KYD058692526-001 · Mar 24, 2003
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000637 · Aug 19, 1993
Judicial
· Case 04-1991-0056 · May 11, 1993
$7,000
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-KYD058692526-000 · Jul 10, 1991

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