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John Marquardt, MS, PE, is a Senior Engineer with over 40 years of consulting experience in geoenvironmental and geotechnical engineering.  He has practiced geotechnical and construction materials testing in Florida since 1976, accumulating years of experience in the local soils and construction conditions.  Mr. Marquardt has expertise in a variety of areas including soil mechanics, effluent disposal, shallow and deep foundation engineering, ground improvement techniques, construction materials testing, groundwater flow modeling and monitoring, landfill siting, earth dam engineering, sinkhole risk evaluation and remediation, contamination assessment and remedial systems design and construction.  He has supervised geotechnical and construction materials testing projects for a large variety of private and governmental clients and assisted in the preparation of remedial action plans for contaminated sites.

He has held department management positions periodically since 1986, assuming responsibility for the department’s day-to-day activities.  His overall responsibilities included: budget and scheduling, personnel direction, and technical quality control on projects such as building foundation design studies, geotechnical aspects of site development feasibility, sinkhole/settlement evaluations, roadway soil surveys, utility/pipeline geotechnical studies, earth dams, and retention area exfiltration analyses.  He assessed personnel capabilities and assigned them to appropriate projects, established relationships with other department managers for projects with multiple services, and selected, obtained, and directed the company resources necessary to accomplish project goals.