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REMEDIAL LIABILITIES
 12 Months Ended
Dec. 31, 2025
Environmental Remediation Obligations [Abstract]  
REMEDIAL LIABILITIES REMEDIAL LIABILITIES
The changes to remedial liabilities from January 1, 2024 through December 31, 2025 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, 2024$1,880 $60,277 $49,086 $111,243 
Liabilities assumed in acquisitions— — 5,192 5,192 
Accretion92 2,292 1,514 3,898 
Changes in estimates recorded to consolidated statement of operations29 573 3,762 4,364 
Environmental expenditures(53)(6,078)(5,715)(11,846)
Currency translation and other— (28)(1,078)(1,106)
Balance at December 31, 20241,948 57,036 52,761 111,745 
Measurement period adjustments from prior period acquisition— — (90)(90)
Accretion93 2,353 1,315 3,761 
Changes in estimates recorded to consolidated statement of operations(66)(860)(9,296)(10,222)
Environmental expenditures(47)(4,163)(5,724)(9,934)
Currency translation and other— 157 (48)109 
Balance at December 31, 2025$1,928 $54,523 $38,918 $95,369 
In the year ended December 31, 2025, the Company decreased its remedial liability for a site by approximately $10 million due to its conclusion that loss was no longer probable based on the evaluation of available evidence.
Anticipated payments at December 31, 2025 (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, 
2026$8,822 
202712,819 
20288,696 
20298,930 
20306,916 
Thereafter84,266 
Undiscounted remedial liabilities130,449 
Less: Discount at risk free rate(35,080)
Total remedial liabilities$95,369 
The following table presents the Company's estimated remedial liabilities and reasonably possible additional liabilities as of December 31, 2025 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 (28 facilities)
$54,476 57.1 %$10,164 
Facilities now used in active conduct of the Company's business (58 facilities)
33,425 35.1 7,267 
Superfund sites (13 sites)
7,468 7.8 1,120 
Total$95,369 100.0 %$18,551 
___________________________________
(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, 2025 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, LA
Closed incinerator and landfill
$24,558 25.8 %$3,751 
Bridgeport, NJClosed incinerator16,866 17.7 3,586 
Linden, NJOperating solvent recycling center8,645 9.1 1,954 
Various
All other incinerators, landfills, wastewater treatment facilities and service centers (83 facilities)
37,832 39.6 8,140 
Various
Superfund sites (each representing less than 5% of total liabilities) (13 sites)
7,468 7.8 1,120 
Total $95,369 100.0 %$18,551 
_________________________________
(1)$11.4 million of the $95.4 million remedial liabilities include estimates related to the legal and administrative proceedings discussed in Note 17, “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.