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TRI Explorer

Waste Quantity: Trends Report Click for help on this criterion

Data Source: 2019 Updated Dataset (May 2021, released June 2021) See Note     Instructions for printing wide reports




Quantities of TRI Chemicals in Waste (in pounds), Trend Report by Westlake Petrochemicals Ethylene (TRI ID 70663WSTLK900HA) for Styrene chemical, U.S. 1991-1997
Are year to year changes comparable?
Row #  Year  Recycled On-site  View Trend Graphic Recycled Off-site  View Trend Graphic Energy Recovery On-site  View Trend Graphic Energy Recovery Off-site  View Trend Graphic Treated On-site  View Trend Graphic Treated Off-site  View Trend Graphic Total Quantity Disposed or Otherwise Released On- and Off-site  View Trend Graphic Total Production-related Waste Managed  View Trend Graphic Non-Production-related Waste Managed  View Trend Graphic
 
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1 1991 0 0 280,000 0 24 0 40 280,064 0
2 1992 0 0 462,470 172,637 12 0 17,397 652,516 0
3 1993 0 0 438,028 0 735 0 12,482 451,245 0
4 1994 0 0 447,490 0 281 0 4,752 452,523 0
5 1995 0 508 367,500 0 0 0 8,010 376,018 0
6 1996 0 0 134,740 0 0 0 7,481 142,221 0
7 1997 0 0 140,535 0 15 0 6,325 146,875 0

Quantities of TRI Chemicals in Waste (in pounds), Trend Report by Westlake Petrochemicals Ethylene (TRI ID 70663WSTLK900HA) for Styrene chemical, U.S. 1998-2019
Are year to year changes comparable?
Row #  Year  Recycled On-site  View Trend Graphic Recycled Off-site  View Trend Graphic Energy Recovery On-site  View Trend Graphic Energy Recovery Off-site  View Trend Graphic Treated On-site  View Trend Graphic Treated Off-site  View Trend Graphic Total Quantity Disposed or Otherwise Released On- and Off-site  View Trend Graphic Total Production-related Waste Managed  View Trend Graphic Non-Production-related Waste Managed  View Trend Graphic
 
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1 1998 0 2 153,533 0 53,670 2 6,265 213,472 0
2 1999 0 0 149,621 1,400 12,413 2 6,911 170,347 0
3 2000 0 1 131,898 4,262 78,058 85 7,749 222,053 0
4 2001 0 13,796 106,625 0 28,680 582 4,804 154,487 0
5 2002 0 4,253 148,419 11,657 39,800 0 5,359 209,488 0
6 2003 0 18,005 127,686 0 72,357 22 5,091 223,161 0
7 2004 0 15 154,050 16,060 56,757 1,451 5,294 233,627 0
8 2005 0 0 181,954 8,781 55,686 1,175 5,026 252,622 0
9 2006 0 0 211,092 18,097 66,968 1,016 5,030 302,203 0
10 2007 0 0 220,865 33,814 69,835 1,608 6,836 332,958 0
11 2008 0 0 188,631 11,837 70,912 2,051 7,758 281,189 0
12 2009 0 0 303,741 44,616 69,119 971 7,120 425,567 0
13 2010 0 0 292,793 16,868 64,259 21,201 7,367 402,488 0
14 2011 0 0 315,355 61,553 55,164 1,310 7,174 440,556 0
15 2012 0 0 152,497 72,436 64,606 491 6,048 296,078 0
16 2013 0 0 208,159 14,190 33,451 3,206 25,864 284,870 0
17 2014 0 0 146,620 54,776 31,266 0 6,477 239,139 0
18 2015 0 0 240,408 33,163 25,055 58,595 7,501 364,722 0
19 2016 0 0 230,707 4,318 40,996 334 7,024 283,379 0
20 2017 0 0 246,893 0 72,362 0 7,320 326,575 0
21 2018 0 0 231,807 0 123,434 800 7,114 363,155 0
22 2019 0 0 209,415 0 124,267 394 8,052 342,128 0

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Note: Reporting year (RY) 2019 is the most recent TRI data year 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 2019 data set (released to the public in June 2021). This dataset includes revisions for the years 1988 to 2019 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. 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.

Quantities of TRI Chemicals in Waste from Section 8, Column B (Recycled On-site (8.4), Recycled Off-site (8.5), Energy Recovery On-site (8.2), Energy Recovery Off-site (8.3), Treated On-site (8.6), Treated Off-site (8.7), Total on-site disposal to Class I Underground Injection Wells, RCRA Subtitle C Landfills, and other Landfills (8.1A), Total other on-site disposal or other releases (8.1B), Total off-site disposal to Class I Underground Injection Wells, RCRA Subtitle C Landfills, and other Landfills (8.1C), Total other off-site disposal or other releases (8.1D), Total Quantity Disposed of or Otherwise Released On- and Off-site (8.1)), and Non-production-related waste managed from Section 8.8.

Beginning with reporting year 2003 Part II section 8.1 was replaced with 8.1A, 8.1B, 8.1C, and 8.1D. The new columns are included to facilitate trends analysis.

Quantities of waste data are from Section 8 of the Form R, which is the standard TRI reporting form. These data are available beginning with the 1991 reporting year.

A decimal point, or "." denotes the following: if a decimal point 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).

How to cite TRI Explorer. Following APA Style, 6th edition, an appropriate citation to TRI Explorer is:
United States Environmental Protection Agency. (2021). TRI Explorer (2019 Updated Dataset (May 2021, released June 2021)) [Internet database]. Retrieved from https://enviro.epa.gov/triexplorer/, (October 19, 2021).

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