Henley-Johnston & Associates, Inc.
Dallas,
Texas
View Accreditation Certificate
Jordan
Scoville
235 Morgan Avenue
Dallas
,
Texas
75203
Phone: (214) 941-3808
Fax:
jscoville@hja-eng.com
http://www.hja-eng.com
26-4778 : The entire accreditation has been suspended
Quality Management System - accredited since 10/23/2013
C1077 (Aggregate), C1077 (Concrete), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil)
Soil - accredited since 12/5/2014
D421, D422, D698, D854, D1140, D1557, D2166, D2216, D2435, D2487, D2488, D3080, D4318, D4972, D6938
Aggregate - accredited since 12/5/2014
C117, C127, C128, C136, C566, C702
Concrete - accredited since 10/23/2013
C31 (Cylinders), C39, C138, C143, C172, C173, C231, C511, C617 (6000 psi and below), C1064, C1231 (7000 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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