TRI Reporter
Clean Air Act
Clean Water Act
RCRA
KOPPERS INC (DENVER CO)
Quick Summary
- •Released 2,805 lbs of toxic chemicals to the environment in the most recent TRI reporting year.
- •Assessed $0 in total penalties since records began.
- •Reports releases of chemicals classified as known or probable carcinogens.
- Address
-
465 WEST 56TH AVENUE
DENVER, CO 80216
View on map ↗ - County
- ADAMS County
- Industry
- Manufacturing
- NAICS (North American Industry Classification)
- 321114
- Inspections
- 4 · last Oct 30, 2025
- Total Penalties
- $0 · last Jan 20, 2009
- Registry ID
- 110013817325
How This Compares
#80
of 246 TRI reporters in CO
#5,823
of 16,877 TRI reporters in Manufacturing
Ranked by most recent year's total TRI releases.
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 (2015–2020)
-6% overall
| Year | Total Releases (lbs) | vs Prior Year |
|---|---|---|
| 2015 | 2,235 | — |
| 2016 | 3,006 | +35% |
| 2017 | 2,805 | -7% |
| 2018 | 3,006 | +7% |
| 2019 | 2,905 | -3% |
| 2020 | 2,094 | -28% |
2020
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 11 | |
| Creosote | 2,090 | 2,090 | — | — | 27,073 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 4 | 4 | — | — | 3,509 | ♦ Carcinogen |
2019
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 4 | |
| Creosote | 2,900 | 2,900 | — | — | 9,042 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 5 | 5 | — | — | 1,173 | ♦ Carcinogen |
2018
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 5 | |
| Creosote | 3,000 | 3,000 | — | — | 13,146 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 6 | 6 | — | — | 1,702 | ♦ Carcinogen |
2017
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 3 | |
| Creosote | 2,800 | 2,800 | — | — | 8,053 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 5 | 5 | — | — | 1,044 | ♦ Carcinogen |
2016
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 1 | |
| Creosote | 3,000 | 3,000 | — | — | 2,270 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 6 | 6 | — | — | 300 | ♦ Carcinogen |
2015
| Chemical | Total (lbs) | Air | Water | Land | Off-Site | |
|---|---|---|---|---|---|---|
| Benzo[g,h,i]perylene | — | — | — | — | 7 | |
| Creosote | 2,230 | 2,230 | — | — | 15,640 | ♦ Carcinogen |
| Polycyclic aromatic compounds | 5 | 5 | — | — | 2,077 | ♦ 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 |
|---|---|---|---|---|
| Polycyclic aromatic compounds | — | — | 153 | 1,572 |
| Creosote | — | — | 1,200 | 12,126 |
| Benzo[g,h,i]perylene | — | — | 1 | 5 |
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 ENVIRONMENTAL SERVICES INC
KIMBALL, NE
|
Benzo[g,h,i]perylene | — | — | — | 3 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
KIMBALL, NE
|
Creosote | — | — | — | 8,000 |
|
CLEAN HARBORS ENVIRONMENTAL SERVICES INC
KIMBALL, NE
|
Polycyclic aromatic compounds | — | — | — | 1,037 |
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 | — | METRO WASTEWATER RECLAM DIST WWTF, DENVER |
| Creosote | 53 | METRO WASTEWATER RECLAM DIST WWTF, DENVER |
| Polycyclic aromatic compounds | 7 | METRO WASTEWATER RECLAM DIST WWTF, DENVER |
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: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Sep 7, 2006 | Oct 5, 2006 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 7, 2006 | Oct 5, 2006 | Resolved |
| rcra | Standards for Used Oil: Generators | Sep 7, 2006 | Oct 5, 2006 | Resolved |
| rcra | Land Disposal Restrictions: General | Apr 1, 2004 | Apr 30, 2004 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Apr 1, 2004 | Apr 30, 2004 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | Apr 1, 2004 | Apr 30, 2004 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Apr 1, 2004 | Apr 30, 2004 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | May 28, 2002 | Oct 28, 2002 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | May 28, 2002 | Oct 28, 2002 | Resolved |
| rcra | Standards Applicable to Generators of HW: Manifest Requirements Applicable to Small and Large Quantity Generators | May 28, 2002 | Oct 28, 2002 | Resolved |
| rcra | Land Disposal Restrictions: General | May 28, 2002 | Oct 28, 2002 | Resolved |
| rcra | Land Disposal Restrictions: General | Aug 28, 2000 | Sep 28, 2000 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Aug 28, 2000 | Sep 28, 2000 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General Facility Standards | Aug 28, 2000 | Sep 28, 2000 | Resolved |
| rcra | State Statutory or Regulatory requirements that are broader-in-scope than the federal RCRA requirements | Sep 11, 1997 | Sep 27, 1999 | Resolved |
| rcra | Land Disposal Restrictions: General | Mar 28, 1997 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: Pre-Transport Requirements Applicable to Small and Large Quantity Generators | Mar 28, 1997 | Sep 8, 1997 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Closure and Post-Closure | Mar 28, 1997 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 28, 1997 | Sep 8, 1997 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Waste Piles | Mar 28, 1997 | Sep 8, 1997 | Resolved |
| rcra | Land Disposal Restrictions: General | Sep 11, 1996 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | Sep 11, 1996 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Sep 11, 1996 | Sep 8, 1997 | Resolved |
| rcra | Land Disposal Restrictions: General | Dec 11, 1995 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Dec 11, 1995 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Recordkeeping and Reporting Applicable to Small and Large Quantity Generators | Dec 11, 1995 | Sep 8, 1997 | Resolved |
| rcra | Standards Applicable to Generators of HW: General | Mar 26, 1994 | Jun 5, 1995 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Oct 31, 1991 | Mar 26, 1992 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Jun 20, 1989 | Sep 6, 1989 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: Financial Requirements | Apr 20, 1988 | May 17, 1988 | Resolved |
| rcra | Standards for Owners and Operators of HW TSDs: General | Sep 28, 1987 | Mar 30, 1988 | Resolved |
| rcra | Interim Status Standards for Owners and Operators of HW TSDs: Ground-Water Monitoring | Sep 29, 1982 | Feb 4, 1986 | 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
· Case 08-1988-0065
Administrative - Formal
· Case 08-1988-0160
COMPLIANCE ADVISORY
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-001 · Aug 9, 2013
V3 Conversion Compliance Advisory
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-000 · Apr 18, 1994
Administrative - Formal
· Case 08-1993-0308 · Feb 14, 1994
$1,275
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-007 · Jun 23, 1989
FINAL 3008(H) I.S. CA ORDER
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-003 · Sep 19, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-005 · May 25, 1988
WRITTEN INFORMAL
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-006 · May 3, 1988
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-004 · Apr 20, 1988
Administrative - Formal
· Case 08-1986-0069 · Jun 5, 1986
$1,500
INITIAL 3008(A) COMPLIANCE
RCRA (Hazardous Waste)
· Case RCRA-COD007077175-002 · Sep 28, 1984
$33,600
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