St. John Land Consulting offers Land Surveying services for Napa, Sonoma, Solano, and Contra Costa Counties. Greg St. John specializes in Elevation Certificates, Letters of Map Amendment (LOMA), flood plain issues, boundary surveys, site plans for development, public agency monument conservation, and GPS. A Land Surveyor with both public and private experience, Greg is active in the California Land Surveyors Association, its Professional Development Program, and other professional organizations. He is FEMA Elevation Certificate trained and provides prompt, communicative, and professional service.