Table 4-55: Leaking Underground Storage Tank Releases and Cleanups

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  1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Total confirmed releases 87,528 126,816 184,457 237,022 270,567 303,635 317,488 341,773 371,387 397,821 412,392 418,918 427,307 439,385 447,233 452,041 464,728 474,127 479,817 488,496 494,997 501,723 507,540 514,123
Cleanups initiated 51,770 79,506 129,074 171,082 209,797 238,671 252,615 292,446 314,965 346,300 367,603 379,243 384,029 403,558 412,657 421,924 435,631 446,940 455,096 463,060 470,460 473,314 481,614 489,575
Cleanups not initiated 35,758 47,310 55,383 65,940 60,770 64,964 64,873 49,327 56,422 51,521 44,789 39,675 43,278 35,827 34,576 30,117 29,097 27,187 24,721 25,436 24,537 28,409 25,926 24,548
Cleanups completed 16,905 26,666 55,444 87,065 107,448 131,272 152,683 178,297 203,247 228,925 249,759 268,833 284,602 303,120 317,405 332,799 350,813 365,361 377,019 388,331 401,874 413,740 424,637 436,406
Releases not cleaned up 70,623 100,150 129,013 149,957 163,119 172,363 164,805 163,476 168,140 168,896 162,633 150,085 142,705 136,265 129,828 119,242 113,915 108,766 102,798 100,165 93,123 87,983 82,903 77,717

NOTES

All data are cumulative from the start of the U.S. Environmental Protection Agency's Underground Storage Tank program, which began in 1984.

Data represent fiscal year, October 1 through September 30.

SOURCES

1990: U.S. Environmental Protection Agency, Office of Underground Storage Tanks, personal communications, Nov. 17 and 18, 1998.

1991-2013: Ibid., UST Performance Measures, available at http://www.epa.gov/swerust1/cat/camarchv.htm as of Mar. 5, 2014.