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Tonya Johnson, P.E. is currently serving as the Director of Quality Assurance and Quality Control at Nibbi Brothers General Contractors. With an extensive background in quality control and project engineering, Tonya has worked at various companies such as Nova Group, Inc., RGH Consultants, and InSituTech, Ltd. Tonya holds a Master of Science in Civil (Geotechnical) Engineering from the University of Hawaii at Manoa and a Bachelor of Science in Business Management from Arizona State University.