September 30, 2025 Mary Anne Whitney Chief Financial Officer Waste Connections, Inc. 6220 Hwy 7, Suite 600 Woodbridge, Ontario L4H 4G3 Canada Re: Waste Connections, Inc. Form 10-K for the Fiscal Year ended December 31, 2024 Filed February 13, 2025 File No. 001-34370 Dear Mary Anne Whitney: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Energy & Transportation