CTL/Thompson, Inc.
Fort Collins,
Colorado
View Accreditation Certificate
Heather
Grubb
400 N. Link Lane
Fort Collins
,
Colorado
80524
Phone: (970) 206-9455
Fax:
hgrubb@ctlthompson.com
http://www.ctlthompson.com
Quality Management System - accredited since 7/14/2005
R18, D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil)
Asphalt Mixture - accredited since 7/14/2005
R47, T30, T209, T308
Soil - accredited since 7/14/2005
R58, T89, T90, T99, T180, T265, D1140
Aggregate - accredited since 7/14/2005
R76, T11, T27, T84, T85, T335
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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