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Comprehensive groundwater sustainability model

Posted on July 1st, 2020

The Iowa Geological Survey recently completed a comprehensive groundwater sustainability model for the Jordan aquifer in the Des Moines Metropolitan Area.  The model will be used by cities, industry, and the Iowa Department of Natural Resources to manage and maximize the beneficial use of water for current and future Iowans. DMMA_Regional_Final_Report

Detrital Zircons Research

Posted on April 10th, 2020

IGS geologist, Ryan Clark, contributed to a recent publication, “Detrital zircons and sediment dispersal in the eastern Midcontinent of North America“ forthcoming in the June 2020 issue of Geosphere.  You can read it at Clark collected samples which provided detrital zircon data from late Mississippian sandstones in SE Iowa.  The locations of these sandstones […]

A Look at 2019, The IGS Geode

Posted on January 17th, 2020

Please enjoy the latest issue of our annual report, The IGS Geode which highlights the activities of The Iowa Geological Survey during 2019. Previous issues are also available: 2018 2017  

Multi-purpose Oxbows Reduce Nitrates

Posted on November 18th, 2019

New research shows that “multi-purpose oxbows” can effectively reduce nitrate-nitrogen, earning them a spot in the Iowa Nutrient Research Strategy’s menu of conservation options. “We’ve learned that oxbows provide more than habitat, important as that is,” said Keith Schilling, State Geologist and Director of the Iowa Geological Survey, lead researcher on several studies documenting restored […]

front image of GS Geode 2017-18

The IGS Geode, our annual report

Posted on October 29th, 2019

The Iowa Geological Survey’s annual reports the IGS Geode, are available at

logo for GeoLab web application

Introducing GeoLab

Posted on July 31st, 2019

The IGS’ new web application, GeoLab, showcases laboratory results from over 6,000 samples across Iowa. Results found in GeoLab include: grain size, radiocarbon dates, clay mineralogy, pXRF, soil carbon and nitrogen, matrix carbonate, bulk density, and clast lithology data. Users can filter results using text-based search options or an interactive map.  Researchers, educators, and others […]

Iowa Well Forecasting System launches

Posted on June 20th, 2019

The University of Iowa Center for Health Effects of Environmental Contamination (CHEEC), in collaboration with the UI Hydroinformatics Lab (UIHI Lab) and the Iowa Geological Survey (IGS), has developed an information system to assist the management of private wells in Iowa. The Iowa Well Forecasting System (IWFoS) is a publicly accessible web platform that allows […]

Geophysics work in Durango, Iowa

Using Geophysics to Detect Roadway Hazards

Posted on May 31st, 2019

IGS’ Jason Vogelgesang and Brennan Slater recently collected geophysical information for the Iowa Department of Transportation in Durango, IA along US52 . Results from the survey will be used to identify potential subsurface hazards along the road stretch.

Rick Langel discusses aquifers with students

Learning about Aquifers in Iowa

Posted on May 22nd, 2019

The Children’s Water Festival was held at the DMACC campus in Ankeny, Iowa on 5/9/19.  IGS geologist, Rick Langel, discussed aquifers, and how water moves through, them with the 2,000 kids in attendance.

Ditches Can Play Powerful Nutrient Reduction Role

Posted on May 1st, 2019

Iowa State University College of Agriculture and Life Sciences 05/01/19 Study Shows Humble Road Ditches Can Play Powerful Nutrient Reduction Role Iowa City, Iowa — New research suggests that water quality challenges in Iowa and nationally would be even greater if it weren’t for a little appreciated feature of the landscape: road ditches. “Road ditches […]