REMEDIAL LIABILITIES

The changes to remedial liabilities from January 1, 2014 through December 31, 2015 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, 2014	$	5,624		$	74,262		$	92,612		$	172,498
Adjustments during the measurement period related to Evergreen	—			—			(536		)	(536		)
Accretion	266			2,975			2,913			6,154
Changes in estimates recorded to statement of income (loss)	(113		)	(2,645		)	40			(2,718		)
Expenditures	(109		)	(5,940		)	(12,070		)	(18,119		)
Currency translation and other	(248		)	(124		)	(1,786		)	(2,158		)
Balance at December 31, 2014	5,420			68,528			81,173			155,121
Accretion	218			2,924			2,622			5,764
Changes in estimates recorded to statement of income (loss)	(2,841		)	(2,927		)	(5,620		)	(11,388		)
Expenditures	(137		)	(4,779		)	(9,091		)	(14,007		)
Currency translation and other	(333		)	(133		)	(3,032		)	(3,498		)
Balance at December 31, 2015	$	2,327		$	63,613		$	66,052		$	131,992

In 2015, the net reduction in the Company's remedial liabilities from changes in estimates recorded to the statement of income (loss) was $11.4 million and primarily related to reductions in the estimates for remedial activities at four locations. Events which occurred during 2015 and resulted in the changes in estimates were attributable to favorable outcomes from negotiations amongst potentially responsible parties which the Company participates in of $3.8 million, the results of work performed by external third party consultants who were engaged to aid the Company in estimating future remedial activity costs at certain sites of $4.7 million and the result of receiving Provincial approval for a planned expansion of one of the Company's landfills in Canada which as a result will remediate the Company's previously recognized obligations of $2.5 million.

In 2014, the reduction in changes in estimates recorded to the statement of income (loss) was primarily related to estimated cost adjustments for remediation across various sites.

Anticipated payments at December 31, 2015 (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 were as follows (in thousands):



Year ending December 31,
2016	$	13,525
2017	14,004
2018	15,907
2019	10,626
2020	9,963
Thereafter	94,116
Undiscounted remedial liabilities	158,141
Less: Discount	(26,149		)
Total remedial liabilities	$	131,992

Based on currently available facts and legal interpretations, existing technology, and presently enacted laws and regulations, the Company estimates that its aggregate liabilities as of December 31, 2015 for future remediation relating to all of its owned or leased facilities and the Superfund sites for which the Company has current or potential future liability is approximately $132.0 million. The Company also estimates that it is reasonably possible that the amount of such total liabilities could be as much as $23.6 million more. Future changes in either available technology or applicable laws or regulations could

(9) REMEDIAL LIABILITIES (Continued)

affect such estimates of remedial liabilities. Since the Company's satisfaction of the liabilities will occur over many years, the Company cannot now reasonably predict the nature or extent of future changes in either available technology or applicable laws or regulations and the impact that those changes, if any, might have on the current estimates of remedial liabilities.

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 and as of December 31, 2015.

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 (47 facilities)	$	59,022	44.7	%	$	12,157
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)	63,613		48.2		10,543
Superfund sites owned by third parties (17 sites)	9,357		7.1		936
Total	$	131,992	100.0	%	$	23,636

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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	$	23,572	17.9	%	$	3,931
Bridgeport, NJ	Closed incinerator	18,623		14.1		2,568
Mercier, Quebec(2)	Idled incinerator and legal proceedings	9,012		6.8		947
Linden, NJ	Operating solvent recycling center	8,069		6.1		867
Various(2)	All other incinerators, landfills, wastewater treatment facilities and service centers (83 facilities)	63,359		48.0		14,387
Various(2)	Superfund sites (each representing less than 5% of total liabilities) owned by third parties (17 sites)	9,357		7.1		936
Total		$	131,992	100.0	%	$	23,636

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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)	$18.9 million of the $132.0 million remedial liabilities and $1.9 million of the $23.6 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.

Revisions to remediation reserve requirements may result in upward or downward adjustments to income from operations in any given period. The Company believes that its extensive experience in the environmental services business, as well as its involvement with a large number of sites, provides a reasonable basis for estimating its aggregate liability. It is possible, however, that technological, regulatory or enforcement developments, the results of environmental studies, or other factors could necessitate the recording of additional liabilities or the revision of currently recorded liabilities that could be material. The impact of such future events cannot be estimated at the current time.