Stahl Sheaffer Engineering, LLC
Canonsburg,
Pennsylvania
View Accreditation Certificate
Matthew
McCahan
360 Euclid Ave
Canonsburg
,
Pennsylvania
15317
Phone: (814) 233-4200
Fax:
mmccahan@stahlsheaffer.com
http://stahlsheaffer.com
Quality Management System - accredited since 6/29/2016
R18
Asphalt Mixture - accredited since 2/27/2020
T355, D2950
Soil - accredited since 6/29/2016
R58, T88, T89, T90, T99, T100, T134, T180, T193, T208, T265, T267, T310, D421, D422, D558, D698, D854, D1140, D1557, D1883, D2166, D2216, D2487, D2488, D2974, D4318, D6938, D6951
Aggregate - accredited since 6/29/2016
T11, T27, T255, C117, C136, C566
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 11/13/2025. Please visit https://aashtoresource.org for current accreditation status.
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