Non-Compliance
TRI Reporter
Clean Air Act
Clean Water Act
RCRA
KOPPERS, INC.
Quick Summary
- •Released 4,108 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
-
2201 EDMONDS STREET
NORTH LITTLE ROCK, AR 72117
View on map ↗ - County
- PULASKI County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 321114
- Inspections
- 5 · last Jan 8, 2026
- Total Penalties
- $0 · last Sep 19, 2017
- Registry ID
- 110000451715
How This Compares
#144
of 316 TRI reporters in AR
#5,289
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
Qtrs Non-Compliant
0
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
2
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)
+392% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 2,445 | — |
| 2016 | 4,409 | +80% |
| 2017 | 4,108 | -7% |
| 2018 | 4,410 | +7% |
| 2019 | 15,620 | +254% |
| 2020 | 21,227 | +36% |
| 2021 | 18,626 | -12% |
| 2022 | 16,624 | -11% |
| 2023 | 18,226 | +10% |
| 2024 | 12,018 | -34% |
2024
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 5 | |
| Creosote | 12,000 | 12,000 | — | — | 13,130 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 18 | 17 | 0 | — | 1,755 | ♦ Carcinogen |
2023
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 4 | |
| Creosote | 18,200 | 18,200 | — | — | 9,648 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 26 | 26 | 0 | — | 1,252 | ♦ Carcinogen |
2022
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 5 | |
| Creosote | 16,600 | 16,600 | — | — | 13,292 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 24 | 24 | — | — | 1,725 | ♦ Carcinogen |
2021
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 3 | |
| Creosote | 18,600 | 18,600 | — | — | 8,328 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 26 | 26 | 0 | — | 1,074 | ♦ Carcinogen |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 1 | |
| Creosote | 21,200 | 21,200 | — | — | 1,457 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 27 | 27 | 0 | — | 189 | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Creosote | 15,600 | 15,600 | — | — | 1,857 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 20 | 19 | 0 | — | 241 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 4 | |
| Creosote | 4,401 | 4,400 | 1 | — | 10,080 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 9 | 9 | 0 | — | 1,306 | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 4 | |
| Creosote | 4,100 | 4,100 | — | — | 9,032 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 8 | 8 | 0 | — | 1,168 | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 2 | |
| Creosote | 4,400 | 4,400 | — | — | 4,507 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 9 | 9 | 0 | — | 579 | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 4 | |
| Creosote | 2,441 | 2,440 | 1 | — | 9,529 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 4 | 4 | 0 | — | 1,240 | ♦ 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 |
|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | 5 |
| Polycyclic aromatic compounds | — | — | — | 2,216 |
| Creosote | — | — | — | 16,730 |
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 EL DORADO, LLC
EL DORADO, AR
|
Creosote | — | — | — | 13,000 |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Benzo[g,h,i]perylene | — | — | — | 5 |
|
CLEAN HARBORS EL DORADO, LLC
EL DORADO, AR
|
Polycyclic aromatic compounds | — | — | — | 1,739 |
Transfers to Publicly-Owned Treatment Works (POTWs)
Toxic chemicals transferred to municipal wastewater treatment plants during the most recent TRI reporting year. Quantities in pounds.
| Chemical | Transferred (lbs) | POTW |
|---|---|---|
| Benzo[g,h,i]perylene | — | NORTH LITTLE ROCK - FAULKNER LAKE, NORTH LITTLE ROCK |
| Creosote | 130 | NORTH LITTLE ROCK - FAULKNER LAKE, NORTH LITTLE ROCK |
| Polycyclic aromatic compounds | 17 | NORTH LITTLE ROCK - FAULKNER LAKE, NORTH LITTLE ROCK |
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 | Standards Applicable to Generators of HW: General | Oct 13, 2025 | Nov 21, 2025 | Resolved |
| rcra | Violation of a permit condition or requirement | Oct 13, 2025 | Dec 4, 2025 | Resolved |
| rcra | Standards Applicable to Generators of HW: Preparedness. Prevention, and Emergency Procedures for LQGs | Mar 28, 2022 | Mar 31, 2022 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Sep 11, 2019 | Oct 3, 2019 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Sep 11, 2019 | Oct 11, 2019 | Resolved |
| rcra | Violation of a permit condition or requirement | Sep 11, 2019 | Oct 3, 2019 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Sep 11, 2019 | Oct 25, 2019 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Changes to Permits | Aug 7, 2018 | Aug 13, 2018 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Air Emission Standards for Equipment Leaks | Mar 15, 2017 | Apr 13, 2017 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Drip Pads | Mar 15, 2017 | Nov 8, 2017 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems | Mar 15, 2017 | Apr 13, 2017 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Mar 15, 2017 | Apr 13, 2017 | Resolved |
| rcra | Violation of a permit condition or requirement | Dec 1, 2015 | Dec 8, 2015 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems | Apr 27, 2015 | Apr 14, 2016 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Drip Pads | Apr 27, 2015 | Apr 14, 2016 | Resolved |
| rcra | Violation of a permit condition or requirement | Mar 26, 2014 | May 15, 2014 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Apr 22, 2013 | May 23, 2013 | Resolved |
| rcra | Standards for Used Oil: Generators | Apr 22, 2013 | May 23, 2013 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Apr 22, 2013 | Feb 3, 2014 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Drip Pads | Apr 22, 2013 | May 23, 2013 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems | May 24, 2011 | Mar 27, 2012 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Contingency Plan and Emergency Procedures | Jan 7, 2011 | Feb 10, 2011 | Resolved |
| rcra | EPA Administered Permit Programs: the HW Permit Program Changes to Permits | Jan 7, 2011 | Feb 10, 2011 | Resolved |
| rcra | Violation of a permit condition or requirement | Dec 18, 2009 | Jan 12, 2010 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Oct 30, 2008 | Aug 5, 2009 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jun 19, 2007 | Jul 5, 2007 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Drip Pads | May 24, 2006 | Jun 21, 2006 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Tank Systems | May 24, 2006 | Jul 28, 2006 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 24, 2006 | Jun 21, 2006 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Jun 29, 2001 | Oct 3, 2001 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Jan 11, 2000 | Jan 13, 2000 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Feb 25, 1998 | Apr 13, 1998 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Jan 24, 1997 | Aug 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Jan 24, 1997 | Jan 24, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 22, 1996 | May 24, 1996 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 22, 1996 | May 24, 1996 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Preparedness and Prevention | Mar 4, 1994 | Jul 28, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 4, 1994 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Use and Management of Containers | Mar 15, 1993 | Jul 28, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 15, 1993 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Mar 15, 1993 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Preparedness and Prevention | May 8, 1992 | Jul 28, 1995 | Resolved |
| rcra | Land Disposal Restrictions: General | May 30, 1991 | Jul 28, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | May 30, 1991 | Jul 28, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | May 30, 1991 | Jul 28, 1995 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 30, 1991 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Closure and Post-Closure | May 30, 1991 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Sep 26, 1990 | Feb 21, 1991 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Jul 26, 1990 | Jul 28, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Closure and Post-Closure | Jul 26, 1990 | Jul 28, 1995 | 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.
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-002 · Mar 15, 2017
PROPOSED CAO
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-001 · Sep 23, 2015
Judicial
· Case 06-1998-2000 · Apr 7, 2003
$552,381
Administrative - Formal
· Case 06-1992-0010 · Dec 27, 1990
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-019 · Sep 12, 1989
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-012 · Feb 18, 1989
$450,000
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-000 · Nov 23, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-015 · Jul 28, 1988
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-011 · Jan 22, 1988
$15,000
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-010 · Feb 20, 1987
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-004 · Jun 25, 1985
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-003 · Jun 5, 1985
INITIAL MONITORING,ANALYSIS,TEST ORDER
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-008 · Feb 4, 1985
FINAL 3008(A) COMPLIANCE ORDER
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-006 · Dec 14, 1984
$17,800
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-ARD006344824-007 · Apr 30, 1984
$56,300
Administrative - Formal
· Case 06-1984-0053 · Apr 30, 1984
$17,800
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