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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 American Electric Power Big Sandy Plant (TRI ID 41230BGSNDUS236) for Mercury compounds chemical, U.S. 2000-2015
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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 0 350 350 2 0 0 0 0 0 0 0 . . 230 14 244 596 . . . . . . . . . . . . . 3 . . . . . 3 599
2 2001 0 420 420 0 0 0 0 0 0 0 10 . . 250 0 260 680 . . . . . . . . . . . . . . . . . 3 . 3 683
3 2002 0 280 280 0 0 0 0 0 0 0 6 . . 190 0 196 476 . . . . . . . . . . . . . . . . . 13 . 13 489
4 2003 0 336 336 0 0 0 0 0 0 0 9 0 233 233 0 242 578 . . . . . . . . 9 . . . . 9 . . . . . 9 587
5 2004 0 300 300 0 0 0 0 0 0 0 7 0 208 208 0 215 516 . . . . . . . . 5 . . . . 5 . . . . . 5 520
6 2005 0 281 281 0 0 0 0 0 0 0 4 0 218 218 0 222 503 . . . . . . . . 3 . . . . 3 . . . . . 3 506
7 2006 0 302 302 2 0 0 0 0 0 0 7 0 221 221 0 228 532 . . . . . . . . 5 . . . . 5 . . . . . 5 536
8 2007 0 286 286 2 0 0 0 0 0 0 3 0 230 230 0 233 521 . . . . . . . . 4 . . . . 4 . . . . . 4 525
9 2008 0 263 263 0 0 0 0 0 0 0 6 0 185 185 0 191 454 . . . . . . . . 6 . . . . 6 . . . . . 6 460
10 2009 0 334 334 0 0 0 0 0 0 0 7 0 237 237 0 244 578 . . . 0 . 0 . . 4 . . . . 4 . . . . . 4 582
11 2010 0 341 341 0 0 0 0 0 0 0 7 0 236 236 0 243 584 . . . . . . . . 4 . . . . 4 . . . . . 4 588
12 2011 0 304 304 0 0 0 0 0 0 0 6 0 204 204 0 210 515 . . . . . . . . 2 . . . . 2 . . . . . 2 517
13 2012 0 141 141 1 0 0 0 0 0 0 2 0 91 91 0 93 235 . . . . . . . . 2 . . . . 2 . . . . . 2 237
14 2013 0 140 140 4 0 0 0 0 0 0 2 0 89 89 0 91 235 . . . . . . . . 3 . . . . 3 . . . . . 3 238
15 2014 0 233 233 0 0 0 0 0 0 0 5 0 146 146 0 151 384 . . . . . . . . 5 . . . . 5 . . . . . 5 389
16 2015 0 138 138 0 0 0 0 0 0 0 10 0 93 93 0 103 241 . . . . . . . . 6 . . . . 6 . . . . . 6 247

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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/, (December 12, 2024).

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