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Last updated: September 2026
GE

GeoTek Engineering & Testing Services, Inc.

Sioux Falls, SD
Request Quote (605) 335-5512 Visit Website

GeoTek Engineering & Testing Services, Inc. is a privately owned corporation formed in 1988 and based in Sioux Falls, SD. It provides environmental consulting, including contamination assessments, Phase I and Phase II environmental site assessments, and emergency spill response. Its staff includes registered professional engineers, certified professional geologists, and certified industrial hygienists.

phase i environmental site assessmentsphase ii contamination assessmentscontamination assessment and remediationsoil and groundwater modelingbrownfield assessmentstank removal assessmentsemergency spill responseasbestos building surveys
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Credentials & Experience

Years of Experience
38+
Certifications
  • Professional Geologist
  • Professional Engineer

Coverage Area

5-state region

Additional Details

State Licensed (PE or PG)
Yes
Years of Experience
38 years
Phase II ESA Capable
Yes
Service Types Offered
Phase I ESAPhase II ESARegulatory Compliance

Location

909 E 50th Street North, Sioux Falls, SD 57104

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