Leadership

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Richard Leigh
President

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Philip A. Tritico, P.E.
Principal | Earthworks Division

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Sonja D. Williams, P.E., P.G.
Environmental Manager

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Mark D. Gray, P.E.
Principal | Geotechnical & Environmental Divisions

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Fanny Burrow
Office Manager

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Larry Bracken
Principal | Materials Testing Division

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Ann Adams
Director of Client Relations