Waste Services, Inc. to Release First Quarter on April 21

Date: April 13, 2009

Source: Waste Services, Inc.

Waste Services Announces Conference Call for First Quarter

Waste Services, Inc. (Nasdaq: WSII) today announced that it will release its first quarter results after the close of markets on Tuesday, April 21, 2009 and hold a conference call on Wednesday, April 22, 2009 at 9:30 a.m. (ET). A copy of the first 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 first quarter results.

If you wish to participate on this call, please phone 866-383-8003 (US and Canada) or 617-597-5330 (International) and enter passcode number 12625802. 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 April 30, 2009 by phoning 888-286-8010 (US and Canada) or 617-801-6888 (International) and entering passcode number 13280858. 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 further information:
Edwin D. Johnson, Executive Vice President and Chief Financial Officer
Waste Services, Inc.
905-319-1237; or
J. Todd Atenhan, Investor Relations
888-917-5105
www.wasteservicesinc.com.

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