Geo-Technology Associates, Inc. (GTA) was established in 1985 and currently has 21 offices located throughout the Mid-Atlantic, Southeast, and Midwest regions. GTA provides services to residential, commercial, institutional, industrial, and energy clients; state and federal government agencies; and architects, engineers, and contractors. With more than 500 engineers, geologists, scientists, technicians, and support personnel, GTA focuses on geotechnical issues such as subsurface exploration; geotechnical and foundation engineering; groundwater resource and wastewater disposal issues; construction observation and materials testing; environmental due diligence issues from Phase I Environmental Site Assessments through management of remediation for contaminated water and soil; and natural resource services ranging from natural resource inventories to federal and state permit processing.