Exhibit 99.1 WASTE CONNECTIONS REPORTS THIRD QUARTER 2024 RESULTS AND RAISES FULL YEAR OUTLOOK - Better than expected third quarter results drive further increases to full year 2024 outlook - Revenue of $2.338 billion, up 13.3% year over year - Net income (a) of $308.0 million, and adjusted EBITDA(b) of $787.4 million, up 17.3% year over year - Adjusted EBITDA(b) margin of 33.7%, up 120 basis points year over year - Net income of $1.19 per share, and adjusted net income (b) of $1.35 per share - Year to date ...