Tolunay-Wong Engineers, Inc.
Geismar,
Louisiana
View Accreditation Certificate
Dianna
Rocca
6037 Commerce Pointe Dr.
Geismar
,
Louisiana
70734
Phone: (225) 644-4966
Fax: (225) 644-4987
drocca@tweinc.com
http://tweinc.com
Quality Management System - accredited since 4/11/2014
R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil)
Soil - accredited since 4/11/2014
D421, D422, D698, D854, D1140, D1556, D1557, D1883, D2166, D2216, D2435, D2487, D2488, D2850, D2974, D4318, D4643, D5084, D6938
Aggregate - accredited since 4/11/2014
C29, C117, C127, C128, C131, C136, C566, C702, D75
Concrete - accredited since 2/9/2015
C31 (Cylinders), C39, 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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