BUGS Subsidiary Awarded Site Cleanup for Dry Cleaning Franchisee; Independent Validation of Project Results Could Save Dry Cleaning Industry Millions.

Business Editors

CARLSBAD, Calif.--(BUSINESS WIRE)--May 1, 2002

Sub-Surface Waste Management Inc. (SSWM), a subsidiary of U.S. Microbics Inc. (OTCBB:BUGS), said today that it has been awarded a remediation contract from American BioSystems (ABS) for a confidential national dry cleaning franchise owner seeking definitive cleanup results and validated third party data on a better, faster, cheaper and safer solution for source remediation of dry cleaning fluids accidentally released at a commercial shopping center site in Michigan.

The project cleanup results will be used by the franchisee's environmental counsel to establish an effective alternative solution to conventional treatment of dry cleaning solvent contamination plaguing many dry cleaning establishments.

Dan Badia of American BioSystems Inc. (ABS) stated, "ABS has arranged this remediation project under direct supervision with the client's environmental counsel who will be in charge of all regulatory aspects of the project including public dissemination of the cleanup results to other dry cleaning establishments facing contamination problems. American BioSystems of Clinton Twp., Mich. is the SSWM exclusive agent in USEPA Region 5, the upper Midwest states."

Bruce Beattie, president of SSWM, stated, "SSWM biotechnology solutions have the potential to save the industry up to 50 percent the cost of conventional solutions and significantly shorten the cleanup time for on-site treatment. We believe this cleanup contract will establish our technology's effectiveness, may also create a new cleanup methodology standard for this key industry, and provide a significant market opportunity for SSWM. With 17,000 active drycleaner facilities in the nation, containing some level of contamination and estimated conventional cleanup technology costs range from $100,000 to $2,000,000 per site, the SSWM technology has the potential of saving the dry cleaning industry millions of dollars in cleanup costs."

SSWM provides comprehensive civil and environmental engineering project management services including specialists to design, permit, build and operate environmental waste cleanup treatment systems using conventional, biological and filtration technologies.

For further information about SSWM, contact Bruce Beattie by phone at 760/918-1860, ext. 103 or by E-mail: [e-mail] or learn about the company by visiting the Web site at http://bugsatwork.com.

The information contained in this press release includes forward-looking statements. Forward-looking statements usually contain the words "estimate," "anticipate," "believe," "expect," or similar expressions that involve risks and uncertainties. These risks and uncertainties include the company's status as a startup company with uncertain profitability, need for significant capital, uncertainty concerning market acceptance of its products, competition, limited service and manufacturing facilities, dependence on technological developments and protection of its intellectual property. The company's actual results could differ materially from those discussed herein. Factors that could cause or contribute to such differences are discussed more fully in the "Risk Factors," "Management's Discussion and Analysis or Plan of Operation" and other sections of the company's Form 10-KSB and other publicly available information regarding the company on file with the Securities and Exchange Commission. The company will provide you with copies of this information upon request.