UNSPSC 81151702: Stratigraphic geology

UNSPSC 81151702 Stratigraphic geology is a Commodity code that covers hydrogeological assessment, aquifer characterization, and groundwater resource evaluation work—specifically the analysis of subsurface geological formations, groundwater zones, and production capacity across multiple strata. State and local water resource agencies, counties, and higher education boards procure this work to understand and manage groundwater supplies, particularly brackish and freshwater aquifers in strategic planning, permitting, and long-term water availability forecasting. Work involves geological mapping, geophysical logging, GIS-based subsurface analysis, statistical modeling of production zones, and regulatory compliance documentation sealed by licensed professional geoscientists.

The Texas Water Development Board (TWDB) is the primary recent buyer, issuing RFP 58027RFP0003 in July 2026 for brackish groundwater production zone analysis across fourteen counties in Central Texas (Carrizo-Wilcox, Queen City, Sparta, and Yegua aquifers), with proposals due August 6, 2026 and a contract term extending through August 31, 2027 with optional annual renewals through 2030. The work requires ten years of project management experience in advanced scientific studies, three years with TWDB databases and geophysical documentation, three years in GIS subsurface mapping, professional geoscientist licensure, and professional liability insurance of $50,000 per occurrence. Deliverables include production-area shapefiles, GIS files, technical reports, and 30-year and 50-year production volume determinations. While the other opportunities in the source—THECB's OER grant support, Sarasota County's groundwater monitoring, Volusia County's well services, DeBary's park irrigation, and Broward County's roofing consultant—involve water or geological terminology, they do not represent stratigraphic geology work and appear to have been cross-tagged in error; only the TWDB solicitation directly engages the code's scope.