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

CENTURY ALUMINUM OF KENTUCKY

Quick Summary

  • Released 366,538 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
1627 STATE ROUTE 271 NORTH
HAWESVILLE, KY 42348
View on map ↗
County
HANCOCK County
Industry
Manufacturing
NAICS (North American Industry Classification)
331313
Inspections
7 · last Jul 23, 2025
Total Penalties
$0 · last Sep 11, 2018
Registry ID
110000380917

How This Compares

#31 of 398 TRI reporters in KY
#487 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.

0
Air (CAA)
Qtrs Non-Compliant
0
Water (CWA)
Qtrs Non-Compliant
2
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 (2015–2022) -39% overall
Year Total Releases (lbs) vs Prior Year
2015 835,550
2016 396,234 -53%
2017 366,538 -7%
2018 392,035 +7%
2019 419 -100%
2020 865,353 +206330%
2021 1,004,810 +16%
2022 506,887 -50%

2022

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 282,827 282,827
Hydrogen fluoride 140,904 140,904
Naphthalene 74,266 74,266 ♦ Carcinogen
Polycyclic aromatic compounds 5,732 5,732 2,390 ♦ Carcinogen
Nickel 2,293 2,293 428 ♦ Carcinogen
Chromium 375 375 1,661
Lead compounds 269 269 29
Benzo[g,h,i]perylene 203 203 290
Mercury compounds 18 18 1

2021

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 528,964 528,964
Hydrogen fluoride 333,739 333,739
Naphthalene 126,716 126,716 1 ♦ Carcinogen
Polycyclic aromatic compounds 10,017 10,017 1,620 ♦ Carcinogen
Nickel 3,878 3,878 485 ♦ Carcinogen
Chromium 656 656 1,881
Lead compounds 460 460 21
Benzo[g,h,i]perylene 351 351 195
Mercury compounds 29 29 1

2020

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 506,597 506,597
Hydrogen fluoride 180,430 180,430
Naphthalene 161,610 161,610 293 ♦ Carcinogen
Polycyclic aromatic compounds 11,227 11,227 3,461 ♦ Carcinogen
Nickel compounds 3,906 3,906 6,466 ♦ Carcinogen
Chromium 657 657 2,844
Lead compounds 463 463 4,264
Benzo[g,h,i]perylene 432 432 345
Mercury compounds 31 31 93

2019

Chemical Total (lbs) Air Water Land Off-Site
Lead 419 419 128 ♦ Carcinogen

2018

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 313,320 313,320
Hydrogen fluoride 73,100 73,100
Polycyclic aromatic compounds 5,130 5,130 59,500 ♦ Carcinogen
Lead 290 290 219 ♦ Carcinogen
Benzo[g,h,i]perylene 178 178 6,565
Toluene 17 17

2017

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 276,364 276,364
Hydrogen fluoride 86,084 86,084
Polycyclic aromatic compounds 3,700 3,700 ♦ Carcinogen
Lead 260 260 19 ♦ Carcinogen
Benzo[g,h,i]perylene 130 130

2016

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 302,487 302,487
Hydrogen fluoride 88,181 88,181
Polycyclic aromatic compounds 5,154 5,154 ♦ Carcinogen
Lead 260 260 2 ♦ Carcinogen
Benzo[g,h,i]perylene 152 152

2015

Chemical Total (lbs) Air Water Land Off-Site
Carbonyl sulfide 606,400 606,400
Hydrogen fluoride 216,600 216,600
Polycyclic aromatic compounds 11,718 11,718 40,300 ♦ Carcinogen
Lead 520 520 100 ♦ Carcinogen
Benzo[g,h,i]perylene 312 312 5,140

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
Polycyclic aromatic compounds 21,292 46,000 15,055
Hydrogen fluoride 2,459,000
Benzo[g,h,i]perylene 316 5,073 920

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
REYNOLDS METALS COMPANY GUM, LLC - SPRINGS PLANT
ARKADELPHIA, AR
Lead 19

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
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements May 2, 2023 Aug 14, 2023 Resolved
rcra Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators May 2, 2023 May 2, 2023 Resolved
rcra Standards for Used Oil: Generators May 2, 2023 Sep 5, 2023 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers May 2, 2023 Aug 8, 2023 Resolved
rcra Standards Applicable to Generators of HW: General May 2, 2023 Jul 26, 2023 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs May 2, 2023 Sep 5, 2023 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators May 2, 2023 May 2, 2023 Resolved
rcra State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements Sep 14, 2020 Oct 22, 2020 Resolved
rcra Standards Applicable to Generators of HW: General Sep 14, 2020 Sep 14, 2020 Resolved
rcra Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs Sep 14, 2020 Oct 22, 2020 Resolved
rcra Standards for Used Oil: Generators Sep 14, 2020 Sep 14, 2020 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Aug 9, 2017 Aug 9, 2017 Resolved
rcra Standards for Used Oil: Generators Aug 9, 2017 Aug 9, 2017 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Aug 9, 2017 Oct 10, 2017 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems Aug 9, 2017 Oct 10, 2017 Resolved
rcra Standards Applicable to Generators of HW: General Aug 8, 2017 Feb 16, 2018 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Aug 8, 2017 Feb 16, 2018 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems Aug 8, 2017 Jan 28, 2019 Resolved
rcra Standards for Used Oil: Generators Aug 8, 2017 Feb 16, 2018 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Aug 8, 2017 Feb 16, 2018 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Apr 6, 2016 Apr 8, 2016 Resolved
rcra Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers Apr 6, 2016 Apr 8, 2016 Resolved
rcra Standards for Universal Waste Management: Standards for Small Quantity Handlers Apr 6, 2016 Apr 8, 2016 Resolved
cwa Effluent Violations - Narrative Effluent Violation Jul 9, 2014 Open
cwa Permit Violations - Violation Specified in Comment Jul 9, 2014 Open
cwa Effluent Violations - Unauthorized Discharge Jan 1, 2014 Open
cwa Monitoring Violations - Analysis not Conducted Dec 31, 2010 Open
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Jul 3, 2002 Aug 14, 2002 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Dec 14, 1999 Dec 14, 1999 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators May 21, 1997 May 21, 1997 Resolved
rcra Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators Mar 22, 1994 May 13, 1994 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Mar 22, 1994 May 25, 1994 Resolved
rcra Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators Apr 23, 1993 Jun 10, 1993 Resolved
rcra Standards for Owners and Operators of HW TSDs: Preparedness and Prevention Sep 10, 1991 Oct 25, 1991 Resolved
rcra Standards for Owners and Operators of HW TSDs: Waste Piles Sep 10, 1991 Dec 20, 1991 Resolved
rcra Standards for Owners and Operators of HW TSDs: General Facility Standards Sep 10, 1991 Oct 10, 1991 Resolved
rcra Standards Applicable to Generators of HW: General Jul 11, 1989 Apr 23, 1993 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
Chlorine, total residual DMR, Limited - Numeric Violation 0.70 mg/L 0.02 +3,584% Sep 2021 Open
Chlorine, total residual DMR, Limited - Numeric Violation 0.06 mg/L 0.01 +445% Sep 2021 Open
Solids, total suspended DMR, Limited - Numeric Violation 60.00 mg/L 50.00 +20% Jan 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.

WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-KYD049062375-001 · Aug 9, 2023
Administrative - Formal
· Case 04-2018-4013 · Sep 11, 2018
$38,900
Administrative - Formal
· Case 04-2011-1532 · Aug 30, 2011
$178,000
Judicial
· Case 04-2006-9005 · Jul 29, 2009
$337,500
Judicial
· Case 04-2000-0813 · Mar 8, 2004
State CWA Non Penalty AO
Clean Water Act · Case KY-N00001810 · Feb 16, 2000
$3,000
State CWA Non Penalty AO
Clean Water Act · Case KY-N00001026 · Aug 14, 1997
$10,000
Administrative - Formal
· Case 04-1997-0461 · Mar 4, 1997
Administrative - Formal
· Case 04-1996-0009 · Oct 16, 1995
State CWA Non Penalty AO
Clean Water Act · Case KY-N00001485 · Nov 22, 1994
Judicial
· Case 04-1993-1340 · Apr 19, 1994
WRITTEN INFORMAL
RCRA (Hazardous Waste) · Case RCRA-KYD049062375-000 · Apr 7, 1994
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000567 · Feb 17, 1994
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000754 · Nov 11, 1993
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000753 · Aug 6, 1993
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000752 · May 4, 1993
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000751 · Feb 24, 1993
State Administrative Order of Consent
Clean Water Act · Case KY-N00000003 · Nov 12, 1992
$10,500
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000211 · Aug 14, 1992
State CWA Non Penalty AO
Clean Water Act · Case KY-N00000261 · Feb 27, 1992
$6,000

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