Harrington Geotechnical Engineering, Inc.
Orange,
California
View Accreditation Certificate
Andrew
Tan
1590 N. Brian Street
Orange
,
California
92867
Phone: (714) 637-3093
Fax:
andrew@harringtongeotechnical.com
http://harringtongeotechnical.com
Quality Management System - accredited since 9/7/2010
R18, D3740 (Soil)
Soil - accredited since 9/7/2010
D421, D1140, D1556, D1557, D2216, D2435, D2844, D3080, D6938
Aggregate - accredited since 5/31/2017
T176, C136
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 6/10/2026. Please visit https://aashtoresource.org for current accreditation status.
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