Company: CLH
Filing Date: 2025-07-30
Form Type: 10-Q
Source: 0000822818-25-000030
Chunk: 66

Company: CLEAN HARBORS INC
Filing Date: 2025-07-30
Form: 10-Q
Item: Part I, Item 1
Chunk 66
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 the Company repurchased and retired 23,397 and 50,662 shares, respectively, of the Company’s common stock for total expenditures of $5.0 million and $10.0 million, respectively.

From the board’s approval of the repurchase plan through June 30, 2025, the Company has repurchased and retired a total of approximately 9.1 million shares of its common stock for $667.6 million under the board-approved plan, and, as of June 30, 2025, an additional $432.4 million remained available for the repurchase of shares.

Environmental Liabilities

(in thousands, except percentages)June 30, 2025December 31, 2024Change% ChangeClosure and post-closure liabilities$136,887 $129,788 $7,099 5.5 %Remedial liabilities99,312 111,745 (12,433)(11.1)Total environmental liabilities$236,199 $241,533 $(5,334)(2.2)%

Total environmental liabilities as of June 30, 2025 were $236.2 million, a decrease of $5.3 million compared to December 31, 2024. During the six months ended June 30, 2025, the environmental liability balance decreased due to reductions in environmental liability estimates of $8.0 million and expenditures of $7.1 million. The reduction in environmental liability estimates 

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was primarily driven by a decrease of approximately $10 million in the remedial liability for a site based on our conclusion that loss was no longer probable based on recent evaluation of available evidence. This change was recorded in the first quarter of 2025.These decreases were partially offset by accretion of $7.2 million and new environmental liabilities, including those recognized as a result of recent acquisitions, of $2.1 million. 

We anticipate our environmental liabilities, substantially all of which we assumed in connection with our acquisitions, will be payable over many years and that cash flow from operations will generally be sufficient to fund the payment of such liabilities when required.

Events not anticipated (such as future changes in environmental laws and regulations) could require that payments to satisfy our environmental liabilities be made earlier or in greater amounts than currently anticipated, which could adversely affect our results of operations, cash flow and financial condition. Conversely, the development of new treatment technologies or other circumstances may arise in the future which may