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Andrew Simpson is currently the Principal at Delta Consulting & Engineering, he is a big picture thinker and he knows how to get the job done like few others. He is meticulously detailed and has sharp analytic abilities. His proactive problem solving skills ensure expedient and quality results in his work. His integrity and concern for his clients, employees and community are evident. Delta Civil is known amongst the building industry in Napa Valley as the "go to" engineering firm.