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|CASCADE HIGH SCHOOL MODERNIZATION & ADDITION|
Roger Hickel Contracting, Inc.
|PORT OF SEATTLE SEATAC AIRPORT NORTH SATELLITE RENOVATION AND EXPANSION PROJECT|
Hensel Phelps Construction Co.
|WATER TREATMENT PLANT DISSOLVED AIR FLOTATION PROJECT|
IMCO General Construction
Dawson Construction, Inc.
|SANDPOINT BUILDING 9|
November 21, 2012
Stephen Hannan, a civil engineer with Ridolfi, has passed the registered engineer exam, and Eric Buer, a geologist/geomorphologist, is now a licensed hydrogeologist in Washington. Seattle-based Ridolfi provides engineering and consulting services for natural resources, environmental cleanup, habitat restoration, waste management and energy efficiency.