ENGEO Incorporated
Rocklin,
California
View Accreditation Certificate
Mark
Gilbert
2213 Plaza Drive
Rocklin
,
California
95765
Phone: (916) 786-8883
Fax:
mgilbert@engeo.com
http://www.engeo.com
Quality Management System - accredited since 1/10/2011
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 4/14/2017
R30, R47, R97, T30, T164, T166, T209, T269, T275, T308, T312, T329, D979, D1188, D2041, D2172, D2726, D3203, D3549, D3665, D5444, D6307, D6925
Soil - accredited since 5/5/2011
T236, D421, D422, D698, D854, D1140, D1556, D1557, D2166, D2216, D2487, D2488, D2850, D2974, D3080, D4318, D4718, D4829, D6913, D6938, D7263
Aggregate - accredited since 5/9/2007
R76, R90, T11, T19, T21, T27, T84, T85, T112, T176, T255, T304, T335, C29, C40, C117, C127, C128, C136, C142, C566, C702, C1252, D75, D2419, D4791, D5821
Concrete - accredited since 5/9/2007
C31 (Beams), C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C172, C173, C174, C231, C511, C617 (6000 psi and below), C1064, C1231 (7000 psi and below), C1542
Masonry - accredited since 3/25/2026
C511 (Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes)
C1019 (Sampling and Testing Grout)
Controlled Low Strength Material - accredited since 7/21/2025
D4832, D5971, D6103
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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