Olsson, Inc.
Olathe,
Kansas
View Accreditation Certificate
Justin
Caulfield
1700 E 123RD ST
Olathe
,
Kansas
66061
Phone: (913) 829-0078
Fax: (913) 829-0258
jcaulfield@olsson.com
http://www.olsson.com
26-3307 : Accreditation has been suspended for Aggregate standard(s) C131, C535
Quality Management System - accredited since 4/7/2010
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil)
Asphalt Mixture - accredited since 5/27/2014
D979, D2041, D2726, D2950, D3203, D3549, D5444, D6307, D6925
Soil - accredited since 4/7/2010
D421, D422, D558, D698, D854, D1140, D1556, D1557, D1883, D2166, D2216, D2435, D2487, D2488, D2850, D2974, D3080 (2000 lb/ft-sq or Greater Normal Stress), D4318, D4546, D4643, D4718, D4767, D4944, D5084, D6938, D7263
Aggregate - accredited since 4/7/2010
C88, C117, C127, C128, C136, C142, C566, C702, D75, D4791, D5821
Sprayed Fire-Resistive Material - accredited since 4/2/2025
E605, E736
Concrete - accredited since 5/11/2010
C31 (Beams), C31 (Cylinders), C39, C42 (Drilling Cores of Concrete), C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C172, C173, C174, C231, C511, C617 (7000 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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