Knight Piesold and Co.
Elko,
Nevada
View Accreditation Certificate
Tyler
Dullum
460 West Silver Street
Suite 106
Elko
,
Nevada
89801
Phone: (775) 738-2265
Fax:
tdullum2@knightpiesold.com
http://www.knightpiesold.com
Quality Management System - accredited since 9/1/2001
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Concrete), E329 (Soil)
Soil - accredited since 3/1/2002
R58, T88, T89, T90, T99, T100, T180, T265, T310, D421, D422, D698, D1140, D1557, D2216, D2487, D2488, D4318, D4718, D5084, D6938
Aggregate - accredited since 12/1/2001
R76, R90, T11, T19, T21, T27, T84, T85, T96, T176, T255, C29, C40, C117, C127, C128, C131, C136, C566, C702, D75, D2419
Concrete - accredited since 12/1/2001
M201, R39, R60, R100 (Cylinders), T22, T119, T121, T152, T196, T231 (9000 psi and below), T309, C31 (Cylinders), C39, C138, C143, C172, C173, C192, C231, C511, C617 (9000 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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