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REMEDIAL LIABILITIES
 12 Months Ended
Dec. 31, 2022
Environmental Remediation Obligations [Abstract]  
REMEDIAL LIABILITIES REMEDIAL LIABILITIES
The changes to remedial liabilities from January 1, 2021 through December 31, 2022 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, 2021$1,865 $63,060 $49,888 $114,813 
Liabilities assumed in acquisitions— — 1,216 1,216 
Accretion90 2,614 1,684 4,388 
Changes in estimates recorded to consolidated statement of operations(126)(178)600 296 
Expenditures(49)(4,889)(3,966)(8,904)
Currency translation and other— (820)884 64 
Balance at December 31, 20211,780 59,787 50,306 111,873 
Liabilities assumed in acquisition of real estate— — 8,092 8,092 
Measurement period adjustments from prior period acquisition— — 338 338 
Accretion86 2,498 1,607 4,191 
Changes in estimates recorded to consolidated statement of operations8 877 612 1,497 
Expenditures(50)(3,370)(5,375)(8,795)
Currency translation and other— (43)(863)(906)
Balance at December 31, 2022$1,824 $59,749 $54,717 $116,290 
In 2022, there were no significant charges or benefits resulting from changes in estimates for remedial liabilities. The $8.1 million liability assumed in acquisition relates to real estate that the Company acquired in 2022. In purchasing the property, the Company assumed a known associated remedial liability, which was contemplated in the purchase price.
Anticipated payments at December 31, 2022 (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):
Years ending December 31, 
2023$10,793 
202420,912 
202512,065 
20267,581 
20276,390 
Thereafter76,416 
Undiscounted remedial liabilities134,157 
Less: Discount at risk free rates(17,867)
Total remedial liabilities$116,290 
The following table presents the Company's estimated remedial liabilities and reasonably possible additional liabilities as of December 31, 2022 disaggregated by facility/site type (in thousands, except percentages):
Type of Facility or SiteRemedial
Liabilities		% of Total
Reasonably Possible
Additional Liabilities (1)
Inactive facilities not used in active conduct of the Company's business, most of which were assumed through prior period acquisitions (25 facilities)
$59,759 51.4 %$10,295 
Facilities now used in active conduct of the Company's business (45 facilities)
47,951 41.2 11,189 
Superfund sites (16 sites)
8,580 7.4 1,288 
Total$116,290 100.0 %$22,772 
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(1)Amounts represent the high end of the range of management's best estimate of the reasonably possible additional liabilities.
The following table presents the Company's estimated remedial liabilities and reasonably possible additional liabilities as of December 31, 2022 disaggregated by facilities/sites which represent at least 5% of the total and with all other facilities/ sites combined (in thousands, except percentages):
LocationType of Facility or Site
Remedial
Liabilities(1)
% of Total
Reasonably
Possible
Additional
Liabilities(2)
Baton Rouge, LAClosed incinerator and landfill$26,604 22.9 %$4,547 
Bridgeport, NJClosed incinerator18,089 15.6 3,364 
Linden, NJOperating solvent recycling center14,479 12.5 3,352 
Mercier, QuebecIdled incinerator10,996 9.5 1,659 
Various
All other incinerators, landfills, wastewater treatment facilities and service centers (66 facilities)
37,542 32.1 8,562 
Various
Superfund sites (each representing less than 5% of total liabilities) (16 sites)
8,580 7.4 1,288 
Total $116,290 100.0 %$22,772 
_________________________________
(1)$24.1 million of the $116.3 million remedial liabilities include estimates related to the legal and administrative proceedings discussed in Note 18, "Commitments and Contingencies."
(2)Amounts represent the high end of the range of management's best estimate of the reasonably possible additional 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 future changes in available technology, 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. Since the Company's satisfaction of the liabilities will occur over many years, the Company cannot reasonably predict the nature or extent of possible future events or the impact that those events, if any, might have on the current estimates of remedial liabilities.