CTL/Thompson, Inc.
Colorado Springs,
Colorado
View Accreditation Certificate
Daniel
Harford
5170 Mark Dabling Boulevard
Colorado Springs
,
Colorado
80918
Phone: (719) 528-8300
Fax: (719) 528-5362
dharford@ctlthompson.com
http://www.ctlt.com
26-3641 : Accreditation has been suspended for Concrete standard(s) C31 (Beams), C31 (Cylinders), C39, C78, C511
26-3641 : Accreditation has been suspended for Quality Management System standard(s) C1077 (Concrete)
Quality Management System - accredited since 10/4/2012
R18, C1077 (Aggregate), D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 10/4/2012
R47, T30, T166, T209, T269, T283, T308, T312, T329, T355, CP-L 5106, CP-L 5115, D2041, D2726, D2950, D3203, D3549, D4867, D5444, D6307, D6925
Soil - accredited since 10/4/2012
R58, T88, T89, T90, T99, T134, T135, T136, T180, T208, T265, T310, T311, D421, D422, D558, D559, D560, D698, D1140, D1557, D2166, D2216, D2487, D2488, D4318, D4546, D4718, D6938
Aggregate - accredited since 10/4/2012
R76, R90, T11, T27, T84, T85, T176, T255, T335, C117, C127, C128, C136, C566, C702, D75, D2419, D5821
Concrete - accredited since 10/4/2012
C42 (Drilling Cores of Concrete), C42 (Testing Drilled Cores of Concrete), C138, C143, C172, C173, C231, C617 (6000 psi and below), C1064, C1231 (7000 psi and below), C1542
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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