Earth Systems Pacific
San Luis Obispo,
California
View Accreditation Certificate
Nick
Zoetewey
4378 Old Santa Fe Road
San Luis Obispo
,
California
93401
Phone: (805) 544-3276
Fax:
nzoetewey@earthsystems.com
http://www.earthsystems.com
Quality Management System - accredited since 7/15/1997
R18, C1077 (Aggregate), C1077 (Concrete), C1093 (Masonry), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Masonry), E329 (Soil)
Asphalt Mixture - accredited since 7/15/1997
T275, D2726, D3549, D5444, D6307, D6925, D6926, D6927
Soil - accredited since 4/21/2006
D421, D422, D698, D854, D1557, D1883, D2216, D2844, D4318, D6938
Aggregate - accredited since 3/1/1998
C40, C117, C127, C128, C136, C566, C702
Concrete - accredited since 3/1/1998
C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C172, C173, C231, C511, C617 (8000 psi and below), C1064, C1231 (7000 psi and below)
Masonry - accredited since 9/29/2016
C140 (Reduced-Size Concrete Masonry Units) (Sampling and Testing Concrete Masonry Units and Related Units)
C511 (Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the testing of Hydraulic Cements and Concretes)
C1019 (Sampling and Testing Grout)
C1314 (Prisms Constructed of Reduced-Size Concrete Masonry Units) (Compressive Strength of Masonry Prisms)
C1552 (Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing)
Iron and Steel - accredited since 9/25/2014
A706-A370 (Low Alloy Steel Bars, Deformed and Plain: Tension (Elongation))
A706-A370 (Low Alloy Steel Bars, Deformed and Plain: Tension (Ultimate Tensile Strength))
A706-A370 (Low Alloy Steel Bars, Deformed and Plain: Tension (Yield Strength))
A706-E290 (Low Alloy Steel Bars, Deformed and Plain: Bend Test)
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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