UNSPSC 81151900: Geophysics

UNSPSC 81151900 Geophysics is a Class code representing specialized scientific analysis and field investigation services that state and local governments procure to assess aquifers, groundwater resources, and subsurface conditions. The code captures work spanning geophysical surveys, hydrogeological studies, groundwater modeling, well evaluation, and data analysis performed under contracts with water agencies, county utilities divisions, and environmental management authorities. The Texas Water Development Board's August 2026 RFP for brackish groundwater production zone analysis across the Carrizo-Wilcox, Queen City, Sparta, and Yegua aquifers exemplifies the scope—the solicitation demands ten years of project management in advanced scientific studies, three years with geophysical log documentation and GIS subsurface mapping, professional geoscientist licensure, and deliverables including potential production area shapefiles, 30-year and 50-year production volume determinations, and comprehensive technical reports. Issuing bodies under this code include state water development boards, county water and utilities divisions, and specialized environmental districts, with Volusia County, Florida and Sarasota County, Florida emerging as active procurers of groundwater monitoring, well evaluation, and hydrogeological consulting services.

Recent activity concentrates in Texas and Florida, with the Texas Water Development Board's brackish aquifer analysis spanning fourteen central Texas counties (posted July 6, 2026, due August 6, 2026) and Volusia County's April 2026 RSQ for professional hydrogeological and well services across its twenty-six production wells and nine water treatment facilities representing the most recent solicitations. Sarasota County's April 2026 RPS for quarterly and monthly groundwater monitoring at Carlton Memorial Reserve Wellfield further signals demand for field sampling coordination and data collection under professional engineering or geology licensure. Contracts typically run three-year initial terms with renewal options, require professional liability insurance ranging from $1 million to $2 million, and are scored heavily on qualifications and past performance rather than cost; the Texas TWDB opportunity weights technical proposal quality and team qualifications at 65 percent combined. Subcontracting plans and good-faith utilization of veteran-owned or historically underutilized business vendors appear in Texas solicitations, while Florida counties emphasize Florida licensure, continuing services agreements, and task-order pricing structures with no guaranteed minimum volume.