Casella to Report Fiscal First Quarter Results on August 29

Date: August 15, 2011

Source: Casella Waste Systems, Inc.

Casella Waste Systems, Inc. to Host Conference Call on Its First Quarter Fiscal Year 2012 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 Tuesday, August 30, 2011 to discuss its financial results for the company's first quarter fiscal year 2012, which ended July 31, 2011.

The company will release its financial results after the close of the market on Monday, August 29, 2011. The Company will host a conference call to discuss these results on Tuesday, August 30, 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 (855) 859-2056 or (404) 537-3406 (Conference ID 90088021) until 11:59 p.m. ET on Tuesday, September 6, 2011.

The company also announced today that the company's management will be presenting at Wedbush Securities 2011 Clean Technology & Industrial Growth Management Access Conference on Wednesday, September 14, 2011. The conference is being held at the Westin Hotel in San Francisco, CA.

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.

For further information, contact:
Ned Coletta
Vice President of Finance and Investor Relations
(802) 772-2239
www.casella.com.

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