Waste Services to Release Second Quarter Earnings on July 21

Date: July 7, 2009

Source: Waste Services, Inc.

Waste Services Announces Conference Call for Second Quarter

Waste Services, Inc. (Nasdaq: WSII) today announced that it will release its second quarter results after the close of markets on Tuesday, July 21, 2009 and hold a conference call on Wednesday, July 22, 2009 at 9:30 a.m. (ET). A copy of the second quarter press release will be available on our website after its release. Our Chief Executive Officer, David Sutherland-Yoest, accompanied by other senior management, will discuss the company's second quarter results.

If you wish to participate on this call, please phone 866-362-4831 (US and Canada) or 617-597-5347 (International) and enter passcode number 63383565. To hear a web cast of the call over the Internet, access the home page of the Waste Services website at www.wasteservicesinc.com. A replay of the call will be available until August 6, 2009 by phoning 888-286-8010 (US and Canada) or 617-801-6888 (International) and entering passcode number 52459980. The web cast will also be available on the company's website.

Waste Services, Inc., a Delaware corporation, is a multi-regional integrated solid waste services company that provides collection, transfer, disposal and recycling services in the United States and Canada. The company's web site is www.wasteservicesinc.com. Information on the company's web site does not form part of this press release.

For more information, contact:
Edwin D. Johnson
Executive Vice President and Chief Financial Officer
Waste Services, Inc.
905-319-1237;

or

J. Todd Atenhan, Investor Web Site: www.wasteservicesinc.com.

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