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Data Source: Preliminary 2021 Dataset (released September 2022) 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 Black Hills Corp - Neil Simpson Complex (TRI ID 82716NLSMP13151) for Copper chemical, U.S. 1998-2021
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 22 130 152 1 0 0 0 0 71,000 71,000 0 . . 0 0 71,000 71,153 . . . . . . . . . . . . . . . . . . . . 71,153
2 1999 24 101 125 1 0 0 0 0 39,334 39,334 0 . . 0 0 39,334 39,460 . . . . . . . . . . . . . . . . . . . . 39,460
3 2000 4 138 142 1 0 0 0 0 57,046 57,046 0 . . 0 0 57,046 57,189 . . . . . . . . . . . . . . . . . . . . 57,189
4 2001 2 120 122 0 0 0 0 0 60,882 60,882 0 . . 0 0 60,882 61,004 . . . . . . . . . . . . . . . . . . . . 61,004
5 2002 5 136 141 0 0 0 0 0 62,304 62,304 0 . . 0 0 62,304 62,445 . . . . . . . . . . . . . . . . . . . . 62,445
6 2003 6 156 162 0 0 0 0 0 70,058 70,058 0 0 0 0 0 70,058 70,220 . . . . . . . . . . . . . . . . . . . . 70,220
7 2004 6 160 166 0 0 0 0 0 71,245 71,245 0 0 0 0 0 71,245 71,411 . . . . . . . . . . . . . . . . . . . . 71,411
8 2005 6 154 160 0 0 0 0 0 57,095 57,095 0 0 0 0 0 57,095 57,255 . . . . . . . . . . . . . . . . . . . . 57,255
9 2006 8 153 161 0 0 0 0 0 66,412 66,412 0 0 0 0 0 66,412 66,573 . . . . . . . . . . . . . . . . . . . . 66,573
10 2007 14 160 174 0 0 0 0 0 77,025 77,025 0 0 0 0 0 77,025 77,199 . . . . . . . . . . . . . . . . . . . . 77,199
11 2008 15 172 187 0 0 0 0 0 91,359 91,359 0 0 0 0 0 91,359 91,546 . . . . . . . . . . . . . . . . . . . . 91,546
12 2009 24 175 199 0 0 0 0 0 90,939 90,939 0 0 0 0 0 90,939 91,138 . . . . . . . . . . . . . . . . . . . . 91,138
13 2010 24 177 201 0 0 0 0 0 107,947 107,947 0 0 0 0 0 107,947 108,148 . . . . . . . . . . . . . . . . . . . . 108,148
14 2011 15 172 187 0 0 0 0 0 85,831 85,831 0 0 0 0 0 85,831 86,018 . . . . . . . . . . . . . . . . . . . . 86,018
15 2012 14 170 184 0 0 0 0 0 90,618 90,618 0 0 0 0 0 90,618 90,802 . . . . . . . . . . . . . . . . . . . . 90,802
16 2013 15 165 180 0 0 0 0 0 64,677 64,677 0 0 0 0 0 64,677 64,857 . . . . . . . . . . . . . . . . . . . . 64,857
17 2014 14 77 91 0 0 0 0 0 83,106 83,106 0 0 0 0 0 83,106 83,197 . . . . . . . . . . . . . . . . . . . . 83,197
18 2015 9 56 65 39 0 0 0 0 90,541 90,541 0 0 0 0 0 90,541 90,645 . . . . . . . . . . . . . . . . . . . . 90,645
19 2016 15 57 72 1 0 0 0 0 81,406 81,406 0 0 0 0 0 81,406 81,479 . . . . . . . . . . . . . . . . . . . . 81,479
20 2017 14 55 69 0 0 0 0 0 93,389 93,389 0 0 0 0 0 93,389 93,458 . . . . . . . . . . . . . . . . . . . . 93,458
21 2018 15 57 72 0 0 0 0 0 82,416 82,416 0 0 0 0 0 82,416 82,488 . . . . . . . . . . . . . . . . . . . . 82,488
22 2019 14 57 71 11 0 0 0 0 69,561 69,561 0 0 0 0 0 69,561 69,643 . . . . . . . . . . . . . . . . . . . . 69,643
23 2020 4 58 62 10 0 0 0 0 75,917 75,917 0 0 0 0 0 75,917 75,989 . . . . . . . . . . . . . . . . . . . . 75,989
24 2021 4 52 56 7 0 0 0 0 70,645 70,645 0 0 0 0 0 70,645 70,708 . . . . . . . . . . . . . . . . . . . . 70,708

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Note: Reporting year (RY) 2021 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 an updated data set (released to the public in September 2022). This dataset includes revisions for the years 1988 to 2021 processed by EPA, after the National Analysis Dataset was released. 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. (2022). TRI Explorer (Preliminary 2021 Dataset (released September 2022)) [Internet database]. Retrieved from https://enviro.epa.gov/triexplorer/, (September29, 2022).

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