Geotek Engineering & Testing Services, Inc.
Sioux Falls,
South Dakota
View Accreditation Certificate
Nick
Bierle
909 E. 50th Street North
Sioux Falls
,
South Dakota
57104
Phone: (605) 335-5512
Fax:
quality@geotekeng.com
http://www.geotekeng.com
Quality Management System - accredited since 12/21/2012
R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil)
Soil - accredited since 11/3/2015
D698, D1140, D1557, D2166, D2216, D2487, D2488, D4318, D6938
Aggregate - accredited since 12/21/2012
C40, C117, C123, C127, C128, C136, C142, C566, C702, D75, D4791, D5821
Concrete - accredited since 12/21/2012
C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C173, C231, C511, C617 (6000 psi and below), C1064, C1231 (7000 psi and below)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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