Water Treatment Plant
Yankton, SD · Government
Common Sense, Practical & Economical Solutions
GeoTek Engineering & Testing Services, Inc. is a privately owned geotechnical and environmental consulting firm founded in 1988 and based in Sioux Falls, South Dakota. Serving clients across a five-state region (South Dakota, North Dakota, Iowa, Minnesota, and Nebraska), GeoTek provides geotechnical engineering, construction materials testing and inspection, environmental consulting, and industrial hygiene services. The team includes registered professional engineers, certified professional geologists, certified industrial hygienists, experienced drill crews, technicians, and scientists with a track record on projects ranging from university arenas and school fine arts centers to water treatment plants, medical centers, grain storage facilities, and government buildings.
Registered Professional Engineers on staff · Certified Professional Geologists on staff · Certified Industrial Hygienists on staff
Ralph E. LindnerPresident / CEO
Daniel R. HansonGeneral Manager
Jared HaskinsGeotechnical Manager
Shane LindnerMaterials Unit Manager
Geotechnical engineering services for a wide range of construction projects across the five-state region, with expertise in subsurface investigation, earthwork evaluation, foundation design recommendations, and on-site observations during subgrade preparation, excavation, and foundation construction.
Drilling operations, boring layouts, and subsurface soil exploration under the direction of licensed engineers.
Evaluating and providing recommendations for repair where subgrade or foundation soils have resulted in distress to pavements or structures.
Construction materials testing and inspection performed at the project site or in-house laboratory to ensure project specifications and governing building codes are met.
On-site construction materials testing and quality assurance for earthwork, concrete, masonry, and other construction materials.
In-house laboratory analysis of construction materials to verify compliance with project plans and specifications.
Environmental consulting covering a broad spectrum of services including indoor air quality assessment, emergency spill response, and site environmental evaluation.
Assessment and consulting for indoor air quality issues.
Industrial hygiene services provided by certified industrial hygienists on staff.
Commercial · Residential · Industrial · Education · Government · Healthcare · Agriculture · Sports & Recreation
Yankton, SD · Government
Sioux Falls, SD · Government
Sioux Falls, SD · Education · Client: Mitchell School District
Vermillion, SD · Sports & Recreation · Client: University of South Dakota