Geo-Logic Associates, Inc.
Grass Valley,
California
View Accreditation Certificate
Philip
Plant
143E Spring Hill Drive
Grass Valley
,
California
95945
Phone: (530) 575-2448
Fax:
pplant@geo-logic.com
http://www.geo-logic.com
Quality Management System - accredited since 8/15/2002
R18, C1077 (Concrete), D3740 (Soil)
Soil - accredited since 8/15/2002
D421, D422, D698, D854, D1140, D1557, D2166, D2216, D2435, D2487, D2850, D3080, D4318, D4643, D4718, D4767, D5084, D6913, D7928
Aggregate - accredited since 5/30/2025
C127
Concrete - accredited since 2/27/2013
C31 (Cylinders), C39, C138, C143, C172, C231, C511, C1064, C1231 (6000 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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