Casella Waste to Announce Fourth Quarter Earnings on June 15

Date: June 1, 2011

Source: Casella Waste Systems, Inc.

Casella Waste Systems (Rutland, VT) will announce its fiscal fourth quarter and year-end results, for the period which ended April 30, after the close of the market on Wednesday, June 15. The company will host a conference call the following day at 10 am (EDT) to discuss those results and answer investor questions.


PRESS RELEASE
June 01, 2011

Casella Waste Systems, Inc. to Host Conference Call on Its Fourth Quarter and Fiscal Year 2011 and to Present at Upcoming Investor Conference

Casella Waste Systems, Inc. (NASDAQ: CWST), a regional solid waste, recycling, and resource management services company, will host a conference call on Thursday, June 16, 2011 to discuss its financial results for the company's fourth quarter and fiscal year 2011, which ended April 30, 2011.

The company will release its financial results after the close of the market on Wednesday, June 15, 2011. The Company will host a conference call to discuss these results on Thursday, June 16, 2011 at 10:00 a.m. ET. Individuals interested in participating in the call should dial (877) 548-9590 or (720) 545-0037 at least 10 minutes before start time. The call will also be webcast; to listen, participants should visit Casella Waste Systems' website at ir.casella.com and follow the appropriate link to the webcast.

A replay of the call will be available on the company's website, or by calling (800) 642-1687 or (706) 645-9291 (Conference ID 72713860) until 11:59 p.m. ET on Thursday, June 23, 2011.

The company also announced today that the company's management will be presenting at J.P. Morgan Diversified Industries Conference on Wednesday, June 8, 2011 at 1:45 p.m. ET. The conference is being held at the J.P. Morgan Conference Center in New York City.

The company indicated that, although this presentation is not expected to include any material non-public information, the presentation given at this conference will be made available to all investors on the company's website. The presentation will be posted prior to the scheduled presentation time, and may be accessed via the Investors' section of the company's website at ir.casella.com. In addition, the presentation will be webcast live via a link on the company's website.

For further information, contact Ned Coletta, vice president of finance and investor relations at (802) 772-2239, or visit the company's website at www.casella.com.

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