Kleinfelder, Inc.
Dublin,
California
View Accreditation Certificate
Bryce
O'Neil
6693 Sierra LAne
Suite F
Dublin
,
California
94568
Phone: (925) 771-9359
Fax:
boneil@kleinfelder.com
http://www.kleinfelder.com
Quality Management System - accredited since 5/15/1994
R18, C1077 (Aggregate), C1077 (Concrete), C1093 (Masonry), D3666 (Aggregate), D3666 (Asphalt Mixture), D3666 (Emulsified Asphalt), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Emulsified Asphalt), E329 (Masonry), E329 (Soil), E329 (Sprayed Fire-Resistive Material)
Emulsified Asphalt - accredited since 11/2/2012
T59 / D6930 (Settlement and Storage Stability)
T59 / D6933 (Sieve Test)
T59 / D6934 (Residue by Evaporation)
T59 / D7402 (Particle Charge)
T59-T72 / D7496-D88 (Saybolt Furol Viscosity at 25°C (77°F))
T59-T72 / D7496-D88 (Saybolt Furol Viscosity at 50°C (122°F))
Asphalt Mixture - accredited since 5/15/1994
R30, R47, R68, T30, T164, T166, T209, T245, T246, T247, T269, T275, T283, T305, T308, T312, T324, T329, D1188, D1560 (Stability), D1561, D2041, D2172, D2726, D3203, D3549, D4867, D5444, D6307, D6390, D6925, D6926, D6927
Soil - accredited since 5/15/1994
R58, R74, T88, T89, T90, T99, T100, T134, T135, T190, T208, T216, T265, T267, T296, T297, D421, D422, D558, D559, D698, D854, D1140, D1557, D1633, D2166, D2216, D2435, D2487, D2488, D2844, D2850, D2974, D4318, D4643, D4718, D4767, D4829, D5084, D6913, D7263, D7928
Aggregate - accredited since 5/15/1994
R76, R90, T11, T19, T21, T27, T84, T85, T96, T104, T112, T113, T176, T210, T255, T304, T335, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D75, D2419, D3744, D4791, D5821
Sprayed Fire-Resistive Material - accredited since 11/2/2012
E605
Concrete - accredited since 7/12/2011
C31 (Beams), C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C157, C172, C173, C192, C231, C305, C511, C617 (7000 psi and below), C1064, C1231 (7000 psi and below), C1260, C1293, C1542, C1567
Masonry - accredited since 10/29/2013
C140 (Full-Size Concrete Masonry Units) (Sampling and Testing Concrete Masonry Units and Related Units)
C511 (Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes)
C1019 (Sampling and Testing Grout)
C1314 (Prisms Constructed of Full-Size Concrete Masonry Units) (Compressive Strength of Masonry Prisms)
C1552 (Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing)
Iron and Steel - accredited since 7/12/2011
M31-T244 / A615-A370 (Carbon-Steel Bars, Deformed and Plain: Tension (Elongation))
M31-T244 / A615-A370 (Carbon-Steel Bars, Deformed and Plain: Tension (Ultimate Tensile Strength))
M31-T244 / A615-A370 (Carbon-Steel Bars, Deformed and Plain: Tension (Yield Strength))
M31-T285 / A615-E290 (Carbon-Steel Bars, Deformed and Plain: Bend Test)
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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