Terracon Consultants, Inc.
West Fargo,
North Dakota
View Accreditation Certificate
Gregory A.
Johnson
860 9th St. NE Unit K
West Fargo
,
North Dakota
58078
Phone: (701) 282-9633
Fax: (701) 282-9635
greg.johnson@terracon.com
http://www.terracon.com
Quality Management System - accredited since 5/1/2000
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil)
Asphalt Mixture - accredited since 6/1/2000
R30, R35, R47, R97, T30, T164 (Mineral Matter Not Determined), T166, T209, T269, T283, T308, T312, T329, T355, D979, D2041, D2172 (Mineral Matter Not Determined), D2726, D2950, D3203, D3549, D4867, D5444, D6307, D6925, D6931
Soil - accredited since 3/28/2011
R58, T88, T89, T90, T99, T100, T134, T136, T180, T191, T193, T208, T215, T265, T267, T296, T297, T310, D421, D422, D558, D560, D698, D854, D1140, D1556, D1557, D1633, D1883, D2166, D2216, D2434, D2487, D2488, D2850, D2974, D4253, D4254, D4318, D4718, D4767, D5084, D6913, D6938, D7928, G57, G187
Aggregate - accredited since 9/1/2000
R76, R90, T11, T19, T21, T27, T37, T84, T85, T96, T100 (Mineral Filler), T112, T113, T176, T255, T304, T330, T335, CRD-C130, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C535, C566, C702, C1252, D75, D546, D2419, D4791, D5821
Concrete - accredited since 5/1/2000
M201, R39, R60, R100 (Beams), R100 (Cylinders), R115, T22, T24 (Testing Drilled Cores of Concrete), T97, T119, T121, T148, T152, T160, T196, T197, T231 (6000 psi and below), T276, T303, T309, T325, T347, C31 (Beams), C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C157, C172, C173, C174, C192, C231, C305, C403, C511, C617 (6000 psi and below), C918, C1064, C1074, C1140 (Obtaining and Testing Specimens), C1231 (7000 psi and below), C1260, C1293, C1542, C1567, C1611
Masonry - accredited since 7/28/2020
C511 (Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes)
C780 (Annex 1) (Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry - Consistency by Cone Penetration)
C780 (Annex 4) (Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry - Mortar Aggregate Ratio)
C780 (Annex 6 - Cubes) (Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry - Compressive Strength of Cubes)
C780 (Annex 6 - Cylinders) (Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry - Compressive Strength of Cylinders)
C1019 (Sampling and Testing Grout)
C1314 (Compressive Strength of Masonry Prisms)
C1552 (Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing)
Controlled Low Strength Material - accredited since 7/28/2020
D4832, D5971
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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