Kleinfelder, Inc.
Stockton,
California
View Accreditation Certificate
Aaron
Kidd
2001 Arch-Airport Road
Suite 100
Stockton
,
California
95206
Phone: (951) 453-5609
Fax:
akidd@kleinfelder.com
http://www.kleinfelder.com
Quality Management System - accredited since 10/4/2013
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 3/5/2019
R47, T30, T164, T166 (Cores), T209, T269, T275 (Cores), T308, T329, D2041, D2172, D2726 (Cores), D3203, D5444, D6307
Soil - accredited since 10/4/2013
R58, R74, T88, T89, T90, T99, T100, T134, T180, T208, T265, T267, D421, D422, D558, D698, D854, D1140, D1557, D1633, D2166, D2216, D2487, D2488, D2974, D4318, D4643, D4718, D4829, D6913, D6938, D7263, D7928
Aggregate - accredited since 10/4/2013
R76, R90, T11, T19, T21, T27, T84, T85, T176, T210, T255, T335, C29, C40, C117, C127, C128, C136, C566, C702, D75, D2419, D3744, D4791, D5821
Sprayed Fire-Resistive Material - accredited since 9/14/2026
E605
Concrete - accredited since 10/4/2013
C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C173, 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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