Casella to Release First Quarter 2008 Earnings and Host Conference Call

Date: August 29, 2007

Source: Casella Waste Systems, Inc.

Casella Waste Systems, Inc. to Host Conference Call On Its Fiscal Year 2008 First Quarter

Casella Waste Systems, Inc. (Nasdaq: CWST), a regional, integrated solid waste services company, will host a conference call on Thursday, September 6, 2007 to discuss its financial results for the company's fiscal year 2008 first quarter, which ended July 31, 2007.

The company will release its financial results after the close of the market on Wednesday, September 5, 2007.

The conference call will begin at 10:00 a.m. ET. Interested investors can participate by dialing (719) 457-2698 at least 10 minutes prior to the start of the conference call.

The call will also be webcast; to listen, participants should visit Casella Waste Systems' website at www.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 719-457-0820 (conference code #5076475), until 11:59 p.m. ET on Thursday, September 13, 2007.

Casella Waste Systems, headquartered in Rutland, Vermont, provides collection, transfer, disposal and recycling services primarily in the northeastern United States.

For more information, contact:
Ned Coletta
Director Investor Relations
Casella Waste Systems, Inc.
(802) 775-0325
www.casella.com.

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