REMEDIAL LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2013

Environmental Remediation Obligations [Abstract]

Changes to remedial liabilities

The changes to remedial liabilities from January 1, 2012 through December 31, 2013 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, 2012	$	5,600		$	78,449		$	51,271		$	135,320
Liabilities assumed in Safety-Kleen acquisition	—			10,485			48,188			58,673
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			358			427
Balance at December 31, 2012 (As Adjusted)	5,829			81,564			95,953			183,346
Liabilities assumed in Evergreen acquisition	—			—			2,384			2,384
Accretion	281			3,302			3,212			6,795
Changes in estimates recorded to statement of income	(190		)	(2,813		)	(317		)	(3,320		)
Expenditures	(93		)	(7,599		)	(7,202		)	(14,894		)
Currency translation and other	(203		)	(192		)	(1,418		)	(1,813		)
Balance at December 31, 2013	$	5,624		$	74,262		$	92,612		$	172,498

Remedial Liabilities Anticipated Payments for Each of the Next Five Years

Anticipated payments at December 31, 2013 (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,
2014	$	24,095
2015	19,095
2016	14,305
2017	10,950
2018	13,416
Thereafter	125,003
Undiscounted remedial liabilities	206,864
Less: Discount	(34,366		)
Total remedial liabilities	$	172,498

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 (67 facilities)	$	83,122	48.2	%	$	10,795
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 (40 facilities)	74,227		43.0		11,385
Superfund sites owned by third parties (30 sites)	15,149		8.8		1,515
Total	$	172,498	100.0	%	$	23,695

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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	$	29,369	17.0	%	$	4,443
Bridgeport, NJ	Closed incinerator	19,521		11.3		2,599
Mercier, Quebec(2)	Idled incinerator and legal proceedings	13,970		8.1		1,520
Various(2)	All other incinerators, landfills, wastewater treatment facilities and service centers (104 facilities)	94,489		54.8		13,618
Various(2)	Superfund sites (each representing less than 5% of total liabilities) owned by third parties (30 sites)	15,149		8.8		1,515
Total		$	172,498	100.0	%	$	23,695

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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) $34.6 million of the $172.5 million remedial liabilities and $3.5 million of the $23.7 million reasonably possible additional liabilities include estimates of remediation liabilities related to the legal and administrative proceedings discussed in Note 16, "Commitments and Contingencies," as well as other such estimated remedial liabilities.