REMEDIAL LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2012

Environmental Remediation Obligations [Abstract]

Changes to remedial liabilities

The changes to remedial liabilities from January 1, 2011 through December 31, 2012 were as follows (in thousands):

	Remedial Liabilities for Landfill Sites			Remedial Liabilities for Inactive Sites			Remedial Liabilities (Including Superfund) for Non-Landfill Operations			Total
Balance at January 1, 2011	$	5,511		$	82,354		$	49,748		$	137,613
Liabilities assumed in acquisitions	—			—			100			100
Accretion	271			3,780			2,247			6,298
Changes in estimates recorded to statement of income	(55		)	(3,825		)	2,442			(1,438		)
Expenditures	(71		)	(3,852		)	(2,864		)	(6,787		)
Currency translation and other	(56		)	(8		)	(402		)	(466		)
Balance at December 31, 2011	5,600			78,449			51,271			135,320
Liabilities assumed in Safety-Kleen acquisition	—			—			42,543			42,543
Accretion	276			3,456			2,192			5,924
Changes in estimates recorded to statement of income	(31		)	(5,978		)	(3,643		)	(9,652		)
Expenditures	(82		)	(4,851		)	(2,413		)	(7,346		)
Currency translation and other	66			3			362			431
Balance at December 31, 2012	$	5,829		$	71,079		$	90,312		$	167,220

Remedial Liabilities Anticipated Payments for Each of the Next Five Years

Anticipated payments at December 31, 2012 (based on current estimated costs and anticipated timing of necessary regulatory approvals to commence work on remedial activities) for each of the next five years and thereafter are as follows (in thousands):

Year ending December 31,
2013	$	16,446
2014	16,348
2015	15,501
2016	12,456
2017	9,334
Thereafter	137,442
Undiscounted remedial liabilities	207,527
Less: Discount	(40,307		)
Total remedial liabilities	$	167,220

Environmental Exit Costs by Cost

The following tables show, respectively, (i) the amounts of such estimated liabilities associated with the types of facilities and sites involved and (ii) the amounts of such estimated liabilities associated with each facility or site which represents at least 5% of the total and with all other facilities and sites as a group.

Estimates Based on Type of Facility or Site (in thousands):

Type of Facility or Site	Remedial Liability		% of Total		Reasonably Possible Additional Liabilities(1)
Facilities now used in active conduct of the Company's business (29 facilities)	$	81,883	49.0	%	$	10,932
Inactive facilities not now used in active conduct of the Company's business but most of which were acquired because the assumption of remedial liabilities for such facilities was part of the purchase price for the CSD assets (17 facilities)	71,079		42.5		9,118
Superfund sites owned by third parties (29 sites)	14,258		8.5		1,426
Total	$	167,220	100.0	%	$	21,476

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(1) Amounts represent the high end of the range of management's best estimate of the reasonably possible additional liabilities.

Estimates Based on Amount of Potential Liability (in thousands):

Location	Type of Facility or Site	Remedial Liability		% of Total		Reasonably Possible Additional Liabilities(1)
Baton Rouge, LA(2)	Closed incinerator and landfill	$	32,176	19.2	%	$	4,721
Bridgeport, NJ	Closed incinerator	21,593		12.9		2,811
Mercier, Quebec(2)	Idled incinerator and legal proceedings	14,611		8.7		1,562
Various(2)	All other incinerators, landfills, wastewater treatment facilities and service centers (43 facilities)	84,582		50.7		10,956
Various(2)	Superfund sites (each representing less than 5% of total liabilities) owned by third parties (29 sites)	14,258		8.5		1,426
Total		$	167,220	100.0	%	$	21,476

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(1) Amounts represent the high end of the range of management's best estimate of the reasonably possible additional liabilities.

(2) $34.5 million of the $167.2 million remedial liabilities and $3.5 million of the $21.5 million reasonably possible additional liabilities include estimates of remediation liabilities related to the legal and administrative proceedings discussed in Note 17, "Commitments and Contingencies," as well as other such estimated remedial liabilities.