UNSPSC 81151911: Marine geophysical survey

Marine Geophysical Survey is a collective term for non-invasive, remote-sensing techniques which can be used to investigate the physical characteristics of the Earth.

UNSPSC 81151911 Marine geophysical survey is a Commodity code that state and local governments use to tag groundwater and aquifer characterization work, though the recent opportunities posted under it show a mismatch between the code's nominal scope and the actual work being solicited. The three most recent opportunities include irrigation system installation (City of DeBary, Florida), brackish groundwater production zone analysis (Texas Water Development Board), and open educational resources grant support (Texas Higher Education Coordinating Board). Only the TWDB opportunity aligns squarely with the code's nominal scope; the others appear to be miscoded. The brackish groundwater study demonstrates the primary work state and local governments buy under this code: geophysical survey and analysis of subsurface aquifer properties, including production zone delineation, salinity profiling, and thirty- to fifty-year yield forecasting delivered through GIS shapefiles, technical reports, and modeling outputs. Issuing bodies soliciting under the code include state water boards and water development authorities; the source shows no pattern of repeat buyers across multiple opportunities.

The TWDB brackish groundwater study, posted July 6, 2026, with proposals due August 6, 2026, is the most representative recent opportunity. It spans fourteen Texas counties (Atascosa, Bastrop, Bexar, Caldwell, DeWitt, Fayette, Gonzales, Guadalupe, Karnes, Lavaca, Lee, Live Oak, Williamson, and Wilson) and requires respondents to meet ten years of project management experience in advanced scientific studies, ten years in technology transfer, three years with TWDB databases and geophysical log documentation, and professional geoscientist licensure. The contract runs through August 31, 2027, with optional one-year renewals through 2030, and includes a Subcontracting Plan requirement for VetHUB vendor participation. Evaluation is weighted toward technical proposal quality (40 points), team qualifications and experience (25 points), relevant government contract experience (20 points), and price (15 points). Recent activity under this code centers in Texas; the source does not support significant activity in other states.