GeoTek Engineering & Testing Services, Inc. Email Format

Civil EngineeringSouth Dakota, United States11-50 Employees

GeoTek Engineering & Testing Services, Inc. is a privately held civil engineering firm that provides geotechnical, construction materials, and environmental services across several Midwestern states, including South Dakota, Iowa, Minnesota, North Dakota, and Nebraska. Based in Sioux Falls, the company offers assessments and remediation-related services, such as environmental site assessments, targeted brownfield assessments, transaction screens, asbestos and lead paint assessments, mold and indoor air quality testing, and groundwater studies, as well as the design, installation, and operation of soil and groundwater remediation systems. Its work addresses concerns related to landfills, storm water, air quality, industrial pre-treatment, water supply, and industrial hygiene, serving clients who require comprehensive environmental and geotechnical expertise for property transactions, site cleanups, and regulatory compliance. Founded in 1988 and led by owner and president Ralph Lindner, GeoTek operates with a regional focus and maintains a single office in Sioux Falls, providing specialized services to support site characterization, risk assessment, and remediation projects.

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