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Data Source: 2023 National Analysis Dataset (updated October 2024, released October 2024) See Note     Instructions for printing wide reports




TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), Trend Report for facilities in Koppers Inc (TRI ID 60650KPPRS3900S) for Polycyclic aromatic compounds chemical, U.S. 1995-1997
Are year to year changes comparable?
Row #  Year  Fugitive Air  View Trend Graphic Stack Air  View Trend Graphic Total Air Emissions  View Trend Graphic Surface Water Discharges  View Trend Graphic Underground Injection Class I Wells  View Trend Graphic Underground Injection Class II-V Wells  View Trend Graphic Total Underground Injection  View Trend Graphic RCRA Subtitle C Landfills  View Trend Graphic Other Landfills  View Trend Graphic Total Landfills  View Trend Graphic Land Treatment/Application Farming  View Trend Graphic RCRA Subtitle C Surface Impoundment  View Trend Graphic Other Surface Impoundments  View Trend Graphic Total Surface Impoundments  View Trend Graphic Other Land Disposal  View Trend Graphic Total On-site Releases to Land  View Trend Graphic Total On-site Disposal or Other Releases  View Trend Graphic Off-Site Disposal-Storage Only  View Trend Graphic Off-Site Disposal-Solidification/Stabilization (metals only)  View Trend Graphic Off-Site Disposal-Wastewater Treatment-Metals Only  View Trend Graphic Off-Site Disposal-Underground Injection Class I Wells  View Trend Graphic Off-Site Disposal-Underground Injection Class II-V Wells  View Trend Graphic Total Off-Site Disposal-Underground Injection  View Trend Graphic POTW Transfers - Other Releases  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Landfills  View Trend Graphic Off-Site Disposal-Other Landfills  View Trend Graphic POTW Transfers - Releases to Class I UI Wells and Landfills  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Surface Impoundments  View Trend Graphic Off-Site Disposal-Other Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Landfill/Surface Impoundments  View Trend Graphic Off-Site Disposal-Land Treatment  View Trend Graphic Off-Site Disposal-Other Land Disposal  View Trend Graphic Off-Site Disposal-Other Off-site Management  View Trend Graphic Off-Site Disposal-Waste Broker  View Trend Graphic Off-Site Disposal-Unknown  View Trend Graphic Total Off-site Disposal or Other Releases  View Trend Graphic Total On- and Off-site Disposal or Other Releases  View Trend Graphic
 
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1 1995 250 250 500 0 . . 0 . . . 0 . . 0 0 0 500 . . . . . . . . . . . . . . . . . . . . 500
2 1996 492 123 615 0 0 0 0 0 0 0 0 . . 0 0 0 615 . . . . . . . . . . . . . 17,244 . . . . . 17,244 17,859
3 1997 382 132 514 0 0 0 0 0 0 0 0 . . 0 0 0 514 . . . . . . . . . . . . . 18,204 . . . . . 18,204 18,718

TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), Trend Report for facilities in Koppers Inc (TRI ID 60650KPPRS3900S) for Polycyclic aromatic compounds chemical, U.S. 1998-1999
Are year to year changes comparable?
Row #  Year  Fugitive Air  View Trend Graphic Stack Air  View Trend Graphic Total Air Emissions  View Trend Graphic Surface Water Discharges  View Trend Graphic Underground Injection Class I Wells  View Trend Graphic Underground Injection Class II-V Wells  View Trend Graphic Total Underground Injection  View Trend Graphic RCRA Subtitle C Landfills  View Trend Graphic Other Landfills  View Trend Graphic Total Landfills  View Trend Graphic Land Treatment/Application Farming  View Trend Graphic RCRA Subtitle C Surface Impoundment  View Trend Graphic Other Surface Impoundments  View Trend Graphic Total Surface Impoundments  View Trend Graphic Other Land Disposal  View Trend Graphic Total On-site Releases to Land  View Trend Graphic Total On-site Disposal or Other Releases  View Trend Graphic Off-Site Disposal-Storage Only  View Trend Graphic Off-Site Disposal-Solidification/Stabilization (metals only)  View Trend Graphic Off-Site Disposal-Wastewater Treatment-Metals Only  View Trend Graphic Off-Site Disposal-Underground Injection Class I Wells  View Trend Graphic Off-Site Disposal-Underground Injection Class II-V Wells  View Trend Graphic Total Off-Site Disposal-Underground Injection  View Trend Graphic POTW Transfers - Other Releases  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Landfills  View Trend Graphic Off-Site Disposal-Other Landfills  View Trend Graphic POTW Transfers - Releases to Class I UI Wells and Landfills  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Surface Impoundments  View Trend Graphic Off-Site Disposal-Other Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Landfill/Surface Impoundments  View Trend Graphic Off-Site Disposal-Land Treatment  View Trend Graphic Off-Site Disposal-Other Land Disposal  View Trend Graphic Off-Site Disposal-Other Off-site Management  View Trend Graphic Off-Site Disposal-Waste Broker  View Trend Graphic Off-Site Disposal-Unknown  View Trend Graphic Total Off-site Disposal or Other Releases  View Trend Graphic Total On- and Off-site Disposal or Other Releases  View Trend Graphic
 
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1 1998 339 119 458 0 0 0 0 0 0 0 0 . . 0 0 0 458 . . . . . . . . . . . . . 111,551 . . . . . 111,551 112,009
2 1999 359 118 477 0 0 0 0 0 0 0 0 . . 0 0 0 477 . . . . . . . . . . . . . 90,277 . . . . . 90,277 90,754

TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), Trend Report for facilities in Koppers Inc (TRI ID 60650KPPRS3900S) for Polycyclic aromatic compounds chemical, U.S. 2000-2010
Are year to year changes comparable?
Row #  Year  Fugitive Air  View Trend Graphic Stack Air  View Trend Graphic Total Air Emissions  View Trend Graphic Surface Water Discharges  View Trend Graphic Underground Injection Class I Wells  View Trend Graphic Underground Injection Class II-V Wells  View Trend Graphic Total Underground Injection  View Trend Graphic RCRA Subtitle C Landfills  View Trend Graphic Other Landfills  View Trend Graphic Total Landfills  View Trend Graphic Land Treatment/Application Farming  View Trend Graphic RCRA Subtitle C Surface Impoundment  View Trend Graphic Other Surface Impoundments  View Trend Graphic Total Surface Impoundments  View Trend Graphic Other Land Disposal  View Trend Graphic Total On-site Releases to Land  View Trend Graphic Total On-site Disposal or Other Releases  View Trend Graphic Off-Site Disposal-Storage Only  View Trend Graphic Off-Site Disposal-Solidification/Stabilization (metals only)  View Trend Graphic Off-Site Disposal-Wastewater Treatment-Metals Only  View Trend Graphic Off-Site Disposal-Underground Injection Class I Wells  View Trend Graphic Off-Site Disposal-Underground Injection Class II-V Wells  View Trend Graphic Total Off-Site Disposal-Underground Injection  View Trend Graphic POTW Transfers - Other Releases  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Landfills  View Trend Graphic Off-Site Disposal-Other Landfills  View Trend Graphic POTW Transfers - Releases to Class I UI Wells and Landfills  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Surface Impoundments  View Trend Graphic Off-Site Disposal-Other Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Landfill/Surface Impoundments  View Trend Graphic Off-Site Disposal-Land Treatment  View Trend Graphic Off-Site Disposal-Other Land Disposal  View Trend Graphic Off-Site Disposal-Other Off-site Management  View Trend Graphic Off-Site Disposal-Waste Broker  View Trend Graphic Off-Site Disposal-Unknown  View Trend Graphic Total Off-site Disposal or Other Releases  View Trend Graphic Total On- and Off-site Disposal or Other Releases  View Trend Graphic
 
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1 2000 410 120 530 0 0 0 0 0 0 0 0 . . 0 0 0 530 . . . . . . . . . . . . . 42,780 . . . . . 42,780 43,310
2 2001 376 120 496 0 0 0 0 0 0 0 0 . . 0 0 0 496 . . . . . . . . . . . . . 13,712 . . . . . 13,712 14,208
3 2002 420 117 537 0 0 0 0 0 0 0 0 . . 0 0 0 537 . . . . . . . . 88,625 . . . . 88,625 . . . . . 88,625 89,162
4 2003 571 100 671 0 0 0 0 0 0 0 0 0 0 0 0 0 671 . . . . . . . . 21,853 . . . . 21,853 . . . . . 21,853 22,524
5 2004 706 123 829 0 0 0 0 0 0 0 0 0 0 0 0 0 829 . . . . . . . . 17,610 . . . . 17,610 . . . . . 17,610 18,439
6 2005 880 247 1,127 0 0 0 0 0 0 0 0 0 0 0 0 0 1,127 . . . . . . . . 7,807 . . . . 7,807 . . . . . 7,807 8,935
7 2006 910 179 1,089 0 0 0 0 0 0 0 0 0 0 0 0 0 1,089 . . . . . . . . 18,603 . . . . 18,603 . . . . . 18,603 19,692
8 2007 1,051 808 1,858 0 0 0 0 0 0 0 0 0 0 0 0 0 1,858 . . . . . . . . 16,295 . . . . 16,295 . . . . . 16,295 18,153
9 2008 1,045 2,468 3,513 0 0 0 0 0 0 0 0 0 0 0 0 0 3,513 . . . . . . . . 24,837 . . . . 24,837 . . . . . 24,837 28,350
10 2009 1,010 1,651 2,662 0 0 0 0 0 0 0 0 0 0 0 0 0 2,662 . . . . . . . . 32,271 . . . . 32,271 . . . . . 32,271 34,933
11 2010 1,276 331 1,607 0 0 0 0 0 0 0 0 0 0 0 0 0 1,607 . . . . . . . . 52,467 . . . . 52,467 . . . . . 52,467 54,074

TRI On-site and Off-site Reported Disposed of or Otherwise Released (in pounds), Trend Report for facilities in Koppers Inc (TRI ID 60650KPPRS3900S) for Polycyclic aromatic compounds chemical, U.S. 2011-2023
Are year to year changes comparable?
Row #  Year  Fugitive Air  View Trend Graphic Stack Air  View Trend Graphic Total Air Emissions  View Trend Graphic Surface Water Discharges  View Trend Graphic Underground Injection Class I Wells  View Trend Graphic Underground Injection Class II-V Wells  View Trend Graphic Total Underground Injection  View Trend Graphic RCRA Subtitle C Landfills  View Trend Graphic Other Landfills  View Trend Graphic Total Landfills  View Trend Graphic Land Treatment/Application Farming  View Trend Graphic RCRA Subtitle C Surface Impoundment  View Trend Graphic Other Surface Impoundments  View Trend Graphic Total Surface Impoundments  View Trend Graphic Other Land Disposal  View Trend Graphic Total On-site Releases to Land  View Trend Graphic Total On-site Disposal or Other Releases  View Trend Graphic Off-Site Disposal-Storage Only  View Trend Graphic Off-Site Disposal-Solidification/Stabilization (metals only)  View Trend Graphic Off-Site Disposal-Wastewater Treatment-Metals Only  View Trend Graphic Off-Site Disposal-Underground Injection Class I Wells  View Trend Graphic Off-Site Disposal-Underground Injection Class II-V Wells  View Trend Graphic Total Off-Site Disposal-Underground Injection  View Trend Graphic POTW Transfers - Other Releases  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Landfills  View Trend Graphic Off-Site Disposal-Other Landfills  View Trend Graphic POTW Transfers - Releases to Class I UI Wells and Landfills  View Trend Graphic Off-Site Disposal-RCRA Subtitle C Surface Impoundments  View Trend Graphic Off-Site Disposal-Other Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Surface Impoundments  View Trend Graphic Total Off-Site Disposal-Landfill/Surface Impoundments  View Trend Graphic Off-Site Disposal-Land Treatment  View Trend Graphic Off-Site Disposal-Other Land Disposal  View Trend Graphic Off-Site Disposal-Other Off-site Management  View Trend Graphic Off-Site Disposal-Waste Broker  View Trend Graphic Off-Site Disposal-Unknown  View Trend Graphic Total Off-site Disposal or Other Releases  View Trend Graphic Total On- and Off-site Disposal or Other Releases  View Trend Graphic
 
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1 2011 1,062 333 1,396 0 0 0 0 0 0 0 0 0 0 0 0 0 1,396 . . . . . . . . 36,868 . . . . 36,868 . . . . . 36,868 38,264
2 2012 1,024 339 1,363 0 0 0 0 0 0 0 0 0 0 0 0 0 1,363 . . . . . . . . 46,531 . . . . 46,531 . . . . . 46,531 47,894
3 2013 1,058 379 1,438 0 0 0 0 0 0 0 0 0 0 0 0 0 1,438 . . . . . . . . 3,313 . . . . 3,313 . . . . . 3,313 4,751
4 2014 948 256 1,204 0 0 0 0 0 0 0 0 0 0 0 0 0 1,204 . . . . . . . . 2,922 . . . . 2,922 . . . . . 2,922 4,126
5 2015 927 218 1,145 0 0 0 0 0 0 0 0 0 0 0 0 0 1,145 . . . . . . . . 2,067 . . . . 2,067 . . . . . 2,067 3,212
6 2016 897 147 1,045 0 0 0 0 0 0 0 0 0 0 0 0 0 1,045 . . . . . . . . 1,182 . . . . 1,182 . . . . . 1,182 2,226
7 2017 883 218 1,101 0 0 0 0 0 0 0 0 0 0 0 0 0 1,101 . . . . . . . . 834 . . . . 834 . . . . . 834 1,935
8 2018 910 225 1,134 0 0 0 0 0 0 0 0 0 0 0 0 0 1,134 . . . . . . 5 . . . . . . . . . . . . 5 1,139
9 2019 1,046 258 1,304 0 0 0 0 0 0 0 0 0 0 0 0 0 1,304 . . . . . . 17 . . . . . . . . . . . . 17 1,321
10 2020 855 211 1,066 0 0 0 0 0 0 0 0 0 0 0 0 0 1,066 . . . . . . 2 . . . . . . . . . . . . 2 1,068
11 2021 973 240 1,214 0 0 0 0 0 0 0 0 0 0 0 0 0 1,214 . . . . . . 9 . . . . . . . . . . . . 9 1,223
12 2022 1,128 279 1,406 0 0 0 0 0 0 0 0 0 0 0 0 0 1,406 . . . . . . 45 . . . . . . . . . . . . 45 1,451
13 2023 700 173 873 0 0 0 0 0 0 0 0 0 0 0 0 0 873 . . . . . . 10 . . . . . . . . . . . . 10 883

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Note: Reporting year (RY) 2023 is the most recent TRI data available. Facilities reporting to TRI were required to submit their data to EPA by July 1 for the previous calendar year's activities. TRI Explorer is using the National Analysis data set (updated October 2024, published October 2024). This dataset includes revisions for the years 1988 to 2023 processed by EPA. Revisions submitted to EPA after this time are not reflected in TRI Explorer reports. TRI data may also be obtained through EPA Envirofacts.

Users of TRI information should be aware that TRI data reflect releases and other waste management activities of chemicals, not whether (or to what degree) the public has been exposed to those chemicals. Release estimates alone are not sufficient to determine exposure or to calculate potential adverse effects on human health and the environment. TRI data, in conjunction with other information, can be used as a starting point in evaluating exposures that may result from releases and other waste management activities which involve toxic chemicals. The determination of potential risk depends upon many factors, including the toxicity of the chemical, the fate of the chemical, and the amount and duration of human or other exposure to the chemical after it is released.

Off-site disposal or other releases show only net off-site disposal or other releases, that is, off-site disposal or other releases transferred to other TRI facilities reporting such transfers as on-site disposal or other releases are not included to avoid double counting.

On-site Disposal or Other Releases include Underground Injection to Class I Wells (Section 5.4.1), RCRA Subtitle C Landfills (5.5.1A), Other Landfills (5.5.1B), Fugitive or Non-point Air Emissions (5.1), Stack or Point Air Emissions (5.2), Surface Water Discharges (5.3), Underground Injection to Class II-V Wells (5.4.2), Land Treatment/Application Farming (5.5.2), RCRA Subtitle C Surface Impoundments (5.5.3A), Other Surface Impoundments (5.5.3B), and Other Land Disposal (5.5.4). Off-site Disposal or Other Releases include from Section 6.2 Class I Underground Injection Wells (M81), Class II-V Underground Injection Wells (M82, M71), RCRA Subtitle C Landfills (M65), Other Landfills (M64, M72), Storage Only (M10), Solidification/Stabilization - Metals and Metal Category Compounds only (M41 or M40), Wastewater Treatment (excluding POTWs) - Metals and Metal Category Compounds only (M62 or M61), RCRA Subtitle C Surface Impoundments (M66), Other Surface Impoundments (M67, M63), Land Treatment (M73), Other Land Disposal (M79), Other Off-site Management (M90), Transfers to Waste Broker - Disposal (M94, M91), and Unknown (M99) and, from Section 6.1 Transfers to POTWs (metals and metal category compounds only).

For purposes of analysis, data reported as Range Code A is calculated using a value of 5 pounds, Range Code B is calculated using a value of 250 pounds and Range Code C is calculated using a value of 750 pounds.

A decimal point, or "." denotes the following: if "NA" is reported across an entire row, the facility submitted a Form A (i.e., the facility certified that its total annual reportable amount is less than 500 pounds, and does not manufacture, process, or otherwise use more than 1 million pounds); or if a decimal point is reported in a single column, the facility left that particular cell blank in its Form R submission (a zero in a cell denotes either that the facility reported "0" or "NA" in its Form R submission). A decimal point is reported in the following columns because the element was not required to be reported for that year (the Form R has been changed over the years to require more detailed reporting for some media): Underground Injection Class I, Underground Injection Class II-V, RCRA Subtitle C Landfills and Other Landfills for the years 1988 to 1995; Off-Site Disposal - RCRA Subtitle C Landfills, Off-Site Disposal - Other Landfills and Off-Site Disposal - Surface Impoundments for the years 1988 to 2001; Other RCRA Subtitle C Surface Impoundments, Other Surface Impoundments, Off-Site Underground Injection Class I Wells, Off-Site Underground Injection Class II-V Wells, Off-Site Disposal - RCRA Subtitle C Surface Impoundments and Off-Site Disposal - Other Surface Impoundments for the years 1988 to 2002.

How to cite TRI Explorer. Following APA Style, 6th edition, an appropriate citation to TRI Explorer is:
United States Environmental Protection Agency. (2024). TRI Explorer (2023 National Analysis Dataset (updated October 2024, released October 2024)) [Internet database]. Retrieved from https://enviro.epa.gov/triexplorer/, (November 11, 2024).

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