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Thiele Geotech, Inc.

Omaha, Nebraska

View Accreditation Certificate
Michael Gerdes
13478 Chandler Road Omaha , Nebraska 68138-3716

Phone: (402) 556-2171 Fax: (402) 556-7831

23-1909 : Accreditation has been suspended for Aggregate standard(s) D7428
Quality Management System - accredited since 11/15/1993
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil), E329 (Sprayed Fire-Resistive Material)

Asphalt Mixture - accredited since 11/15/1993
R30, R35, R47, R68, R97, T30, T166, T209, T245, T269, T275, T283, T308, T312, T329, T355, D979, D1188, D2041, D2726, D2950, D3203, D3549, D3665, D4867, D5444, D6307, D6925, D6926, D6927

Soil - accredited since 11/15/1993
R58, R74, T88, T89, T90, T99, T100, T134, T180, T191, T193, T208, T215, T216, T217, T236, T265, T296, T310, D421, D422, D558, D698, D1140, D1556, D1557, D1883, D2166, D2216, D2434, D2435, D2487, D2488, D2850, D2937, D3080, D4254, D4318, D4546, D4643, D4718, D4944, D5084, D6938

Aggregate - accredited since 11/15/1993
R76, R90, T11, T19, T21, T27, T84, T85, T96, T100 (Mineral Filler), T103, T104, T112, T113, T176, T255, T304, T327, T335, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D75, D2419, D4791, D5821, D6928

Sprayed Fire-Resistive Material - accredited since 5/14/2012
E605, E736

Concrete - accredited since 11/15/1993
M201, R39, R60, R100, T22, T24, T97, T119, T121, T148, T152, T160, T161, T162, T196, T231 (7000 psi and below), T303, T309, C31, C39, C42, C78, C138, C143, C157, C172, C173, C174, C192, C215, C227, C231, C305, C511, C617 (7000 psi and below), C642, C666, C1064, C1231 (7000 psi and below), C1260, C1437, C1567

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 2/28/2024. Please visit for current accreditation status.