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We consent to the incorporation by reference in this Registration Statement on Form S-8 of Casella Waste Systems, Inc. of our reports dated February 16, 2024, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting of Casella Waste Systems, Inc. and subsidiaries, appearing in the Annual Report on Form 10-K of Casella Waste Systems, Inc. for the year ended December 31, 2023.