ENGEO Incorporated
San Ramon,
California
View Accreditation Certificate
Derek
Seibold
2633 Camino Ramon, Suite 150
San Ramon
,
California
94583
Phone: (925) 355-9047
Fax:
dseibold@engeo.com
https://http://www.engeo.com
Quality Management System - accredited since 9/15/2004
R18, C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil)
Soil - accredited since 9/15/2004
D421, D422, D558, D559, D698, D854, D1140, D1557, D1633, D2166, D2216, D2435, D2487, D2488, D2850, D2974, D3080, D4318, D4546, D4718, D4767, D4829, D4972, D6913, D6938, D7263, D7928
Aggregate - accredited since 4/11/2006
C40, C117, C127, C128, C136, C566, C702
Concrete - accredited since 4/11/2006
C31 (Cylinders), C39, C138, C143, C172, C173, C231, C495, 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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