News Releases

Waste Connections Announces Exercise of Initial Purchasers' Option
FOLSOM, Calif.

Waste Connections, Inc. today announced that the initial purchasers of its private placement of $175 million aggregate principal amount of Convertible Senior Notes due 2026, have exercised their option in full to purchase an additional $25 million aggregate principal amount of the notes. The initial offering and the exercise of the option are expected to close on March 20, 2006.

The offering is being made only to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended. This announcement is neither an offer to sell nor the solicitation of an offer to buy the notes and shall not constitute an offer or solicitation in any jurisdiction in which such offer or solicitation is unlawful. Neither the notes nor the shares issuable upon conversion have been registered under the Securities Act or any state securities laws, and until so registered, may not be offered or sold in the United States or any state absent registration or an applicable exemption from the registration requirements of the Securities Act.

Forward-looking statements in this release are made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements are based on current expectations and are subject to various risks and uncertainties, including, but not limited to, market conditions, the price and market for the securities being offered, and other risks and uncertainties set forth in the Company's filings with the Securities and Exchange Commission, including its most recent Annual Report on Form 10-K.

SOURCE: Waste Connections, Inc.

CONTACT: Worthing Jackman of Waste Connections, Inc., +1-916-608-8200,