U.S. Laboratories awarded contract by Stone & Webster at Frederickson site

SAN DIEGO, Calif., April 2, 2001 — U.S. Laboratories Inc., a national and international quality control specialty services company to the construction and related engineering and architectural design industries, today announced the award of a services contract from the design engineering firm Stone & Webster Canada L.P., Toronto, Ontario, Canada, for new power plant construction in Frederickson, Washington.

The site is leased from Puget Sound Energy and is located southeast of Tacoma, Washington.

The U.S. Laboratories fast track contract will be managed by the Company’s subsidiary, Earth Consultants, Inc. (ECI), of Bellevue, Washington. The contract includes geotechnical engineering and civil engineering services in conjunction with the Stone & Webster design process. The plan calls for a new 154 MW facility to be constructed on the site. Puget Sound Energy will not be a participant in the project.

Dickerson Wright, Chairman & Chief Executive Officer, stated: “We are pleased to provide our services in support of this project. Historically, our scope of involvement and subsequent fees are usually greater on new power plant construction projects than expansion or retrofitting projects for existing facilities. Recent Federal Regulations requiring neighboring states to provide power to mitigate shortages in California’s Energy System has resulted in increased demands throughout the Western Power Grid. U.S. Laboratories is well positioned through its geographic locations and its unique staffing capabilities, with its UNITEK subsidiary, to support the needs of the Energy Industry.”

Recently, U.S. Laboratories (USLB) announced the formation of an Energy division headquartered at USLB’s subsidiary, Testing Engineers in San Diego to coordinate and expand its services to the utility industry in the Western states.

U.S. Laboratories (USLB), through its subsidiaries located in San Diego, Orange and Ventura counties, has enjoyed a 50-year history of supporting California utilities and energy producers for new facility construction, retrofits and power transmission projects. Major contracts have involved all aspects of electricity generation including nuclear, fossil, hydroelectric, geothermal, solar, and wind cogeneration.

The new Energy division recently entered into major contracts with Pacific Gas & Electric for two new peaking plants as well as with the University of California for a central plant cogeneration facility.

Present clients utilizing USLB’s energy expertise include San Diego Gas & Electric and Southern California Edison. Listed among past projects are Encina Power Plant, South Bay Power Plant, Ormond Beach Generating Facility, and Mandalay Generating Facility. USLB’s personnel have also provided testing services for the San Onofre and Diablo Canyon nuclear plants.

U.S. Laboratories Inc. provides numerous quality control specialty services to the construction, manufacturing and related engineering and architectural design industries. The Company has eight subsidiaries that are strategically located along the Pacific, Atlantic and Florida Gulf coasts and major markets within the Northeast and Southwest regions of the United States. Project assignments constitute all categories of construction and manufacturing from private commercial clients, public interest clients and public sector clients. The Company specializes in working with various municipalities of major metropolitan cities, nationally recognized corporations and a broad range of education and medical facilitators.