Iowa Geological Survey

Iowa Geological Survey The Iowa Geological Survey (IGS) is a recognized leader in the geologic and hydrogeologic sciences. But what about drought?

Surface to Subsurface

Iowa’s groundwater supplies a natural water storage and distribution system that provides drinking water for more than 80 percent of Iowa’s population and helps to support Iowa’s important agricultural economy. Thousands of wells across the state provide access to these groundwater resources. Over the decades, well-drillers have collected more than 35,000 samples of the rock

and soil strata beneath the land’s surface. This collection, curated by the IGS, offers a glimpse of Iowa’s subsurface geologic and hydrologic setting and provides valuable information to help us better understand and protect Iowa’s vital groundwater resources. Thus, the collaboration between IGS and IIHR further strengthens the expertise in both surface and groundwater processes. Floods to Drought

The Iowa Flood Center, a research unit within IIHR, offers unparalleled expertise and information related to flooding. The IGS has access to data from scores of wells across the state. IIHR and the new IGS program propose to revive a comprehensive groundwater monitoring network to better monitor and model Iowa’s groundwater resources. This will provide communities and decision-makers with the information to make sound decisions related to drilling new wells and changing pumping levels for existing wells, and their impact on local aquifers. Research and Information for Iowans

The new partnershipcreates an organization with expertise that now covers all aspects of Iowa’s hydrologic cycle — precipitation, evaporation and evapotranspiration, surface flow, infiltration, and groundwater flow. This broader scope will facilitate collaborations and allow researchers to develop the best possible water-related information, analyses, and tools for Iowans.

IGS geophysicist/hydrogeologist Dr. Joe Honings presented at IMAGE 2026 in Houston, Texas. His latest research on identi...
08/19/2026

IGS geophysicist/hydrogeologist Dr. Joe Honings presented at IMAGE 2026 in Houston, Texas. His latest research on identifying potential geologic hydrogen accumulations from legacy geophysical logs in the Vincent Structure will be published soon!

07/13/2026

For researchers at the Iowa Geological Survey, West Lake Okoboji is at the heart of a tantalizing geological mystery: Why is the lake so deep? A recent IGS research project sought to learn the answer, which lies in the region’s geology, and how water and nutrients enter the lake.

The IGS is mapping the surficial and bedrock geology of Dubuque County as part of the U.S. Geological Survey STATEMAP Pr...
07/01/2026

The IGS is mapping the surficial and bedrock geology of Dubuque County as part of the U.S. Geological Survey STATEMAP Program. We’re fortunate to have the ability to hire student interns to help with logging well cuttings samples, data management, and fieldwork. Yesterday we took our interns on a tour of the mapping area. They were able to see how core drilling of surficial materials helps identify unit thicknesses, visit a quarry exposing Silurian strata, and examine a road cut. Even though it was blazing hot…everyone had a great time!”

“Experts see potential for Iowa hydrogen . . .” as covered by the Iowa Capital Dispatch.
06/29/2026

“Experts see potential for Iowa hydrogen . . .” as covered by the Iowa Capital Dispatch.

Iowa researchers and state natural resources officials are keeping connected as more companies explore geological hydrogen in the state.

05/07/2026
IGS hydrogeologists, Doyle, Honings and Vogelgesang, were out on Wednesday conducting a canoe mounted geophysical survey...
05/07/2026

IGS hydrogeologists, Doyle, Honings and Vogelgesang, were out on Wednesday conducting a canoe mounted geophysical survey on the Ocheyedan River as a part of the state’s groundwater planning project.

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52242

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