W.W. Clyde & Co.
Gunnison,
Utah
View Accreditation Certificate
John
Christensen
909 West Farmer's Freeway
Gunnison
,
Utah
84634
Phone: (435) 201-1533
Fax:
johnchristensen@wwclyde.net
http://https://centralutahtesting.com/home.html
Quality Management System - accredited since 5/29/2003
R18, D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 5/29/2003
R30, R35, R47, R68, T30, T166, T209, T245, T269, T283, T305, T308, T312, T324, T329, D2041, D2726, D3203, D3549, D4867, D5444, D6307, D6390, D6925, D6926, D6927
Soil - accredited since 5/29/2003
R58, T89, T90, T99, T180, T193, T265, D421, D698, D1557, D1883, D2216, D4318
Aggregate - accredited since 5/29/2003
R76, T11, T19, T21, T27, T84, T85, T96, T100 (Mineral Filler), T104, T112, T176, T255, T304, T335, C29, C40, C88, C117, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D2419, D4791, D5821
Concrete - accredited since 6/20/2019
M201, R60, R100 (Cylinders), T22, T119, T121, T152, T196, T309, C31 (Cylinders), C39, C138, C143, C172, C173, C231, C511, 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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