Earth Engineering Consultants, LLC.
Windsor,
Colorado
View Accreditation Certificate
Ethan
Wiechert
4396 Greenfield Drive
Windsor
,
Colorado
80550
Phone: (970) 545-3908
Fax:
ethanw@earth-engineering.com
http://www.earth-engineering.com
Quality Management System - accredited since 4/15/1998
R18, C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 4/15/1998
R68, T30, T166, T209, T245, T269, T287, T308, T312, D3549
Soil - accredited since 11/1/2001
R58, T88, T89, T90, T99, T100, T180, T190, T265
Aggregate - accredited since 11/1/2001
R76, T11, T19, T21, T27, T84, T85, T96, T104, T112, T176, T255, T304, C131, C535
Concrete - accredited since 11/5/2024
M201, R60, R100 (Beams), R100 (Cylinders), R115, T22, T97, T119, T121, T152, T160, T231 (8000 psi and below), T303, T309, C31 (Beams), C31 (Cylinders), C39, C78, C138, C143, C157, C172, C231, C305, C511, C617 (8000 psi and below), C1064, C1231 (7000 psi and below), C1260
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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