WSB LLC
Melissa,
Texas
View Accreditation Certificate
Jace
Whittington
3522 Sam Rayburn Highway
Melissa
,
Texas
75454
Phone: (903) 609-5493
Fax:
JGolleher@wsbeng.com
http://www.wsbeng.com/
Quality Management System - accredited since 1/25/2019
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 1/25/2019
R47, T329, D979, D2041, D2726, D3203, D3549, D5444, D6307, D6752, D6925, D6926, D6927, D6931
Soil - accredited since 1/25/2019
R58, R74, T208, T289, Tex-148-E, D421, D422, D558, D559, D698, D1140, D1557, D1883, D2166, D2216, D2487, D2488, D2850, D4318, D4643, D4767, D4972, D6913, D6938
Aggregate - accredited since 1/25/2019
T176, C29, C40, C117, C127, C128, C131, C136, C142, C566, C702, D75, D4791, D5821
Concrete - accredited since 11/23/2020
C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C138, C143, C172, C174, C231, C511, C617 (5000 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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