Allan E. Seward Engineering Geology, Inc.
Valencia,
California
View Accreditation Certificate
Eric
Seward
27825 Smyth Drive
Valencia
,
California
91355
Phone: (661) 294-0065
Fax:
eseward@sewardgeo.com
http://www.sewardgeo.com
Quality Management System - accredited since 11/19/2012
R18, D3666 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Soil)
Asphalt Mixture - accredited since 6/15/2026
D2950
Soil - accredited since 11/19/2012
D421, D422, D1140, D1556, D1557, D2216, D2487, D2488, D4318, D4829, D6938
Aggregate - accredited since 11/19/2012
C117, C136, C566, C702, D2419
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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