Terracon Consultants
10029 S. Tacoma Way, Suite E-2, 98499, Tacoma, WA, United States
Visit website- Accredited standards
- 45
- A2LA certificate
- 1
- Sites in our directory
- 3
What this lab is accredited for
Our reading of the A2LA scope: each standard once, with its official name where we have checked it.
Only this lab. Searches the 45 standard numbers and the 0 official names we hold. When no standard matches, it searches the method text of every scope line.
ASTM44
ASTM C29
ASTM C31
ASTM C39
ASTM C42
ASTM C78
ASTM C117
ASTM C127
ASTM C128
ASTM C136
ASTM C138
ASTM C140
ASTM C143
Show all 44
ASTM C172
ASTM C173
ASTM C192
ASTM C231
ASTM C566
ASTM C617
ASTM C702
ASTM C1064
ASTM C1077
ASTM C1093
ASTM C1231
ASTM C1314
ASTM C7801
ASTM C10191
ASTM D75
ASTM D698
ASTM D1140
ASTM D2041
ASTM D2216
ASTM D2419
ASTM D2726
ASTM D2950
ASTM D3203
ASTM D3666
ASTM D3740
ASTM D4718
ASTM D5444
ASTM D6307
ASTM D6925
ASTM D6938
ASTM D15571
ASTM E329
Other standards1
AWS D1.1
ISO/IEC 17025:2017; ASTM C1077; ASTM C1093; ASTM D3666; ASTM D3740; ASTM E329; AASHTO R18; ASTM C29/C29M; ASTM C117; ASTM C127; ASTM C128; ASTM C136/C136M; ASTM C566; ASTM C702/C702M; ASTM D75/D75M1; ASTM D2419; ASTM D2041/D2041M1
ASTM D2726/D2726M; ASTM D2950/D2950M1; ASTM D3203/D3203M; ASTM D5444; ASTM D6307; ASTM D6925; AASHTO T312; ASTM C31/C31M1; ASTM C39/C39M1; ASTM C42/C42M1; ASTM C78/C78M1; ASTM C138/C138M1; ASTM C143/C143M1; ASTM C172/C172M1; ASTM C173/C173M1; ASTM C192/C192M; ASTM C231/C231M1; ASTM C617/C617M1; ASTM C1064/C1064M1; ASTM C1231/C1231M1; ASTM C140/C140M; ASTM C7801; ASTM C10191; ASTM C1314; ASTM D698; ASTM D1140; ASTM D15571; ASTM D2216
ASTM D4718/D4718M; ASTM D6938; AWS D1.1; AWS D1.3; AWS D1.4; AWS D1.5; AWS D1.8; AISC 360; RCSC
Read from the A2LA scope document we downloaded on 2026-03-14. Register refreshed 2026-11-06.
Scope as published by A2LA
4 lines
ISO/IEC 17025
Active1002.02
The scope document we hold says it was valid until 2026-03-31. That date has passed, so our copy may be out of date. We downloaded it from the A2LA register on 2026-03-14. Check the A2LA register for the current scope.
Accredited scope, certificate 1002.02
| Line | Method | Matrix | Range |
|---|---|---|---|
| 1 | ISO/IEC 17025:2017; ASTM C1077; ASTM C1093; ASTM D3666; ASTM D3740; ASTM E329; AASHTO R18; ASTM C29/C29M; ASTM C117; ASTM C127; ASTM C128; ASTM C136/C136M; ASTM C566; ASTM C702/C702M; ASTM D75/D75M1; ASTM D2419; ASTM D2041/D2041M1 | Concrete | - |
| 2 | ASTM D2726/D2726M; ASTM D2950/D2950M1; ASTM D3203/D3203M; ASTM D5444; ASTM D6307; ASTM D6925; AASHTO T312; ASTM C31/C31M1; ASTM C39/C39M1; ASTM C42/C42M1; ASTM C78/C78M1; ASTM C138/C138M1; ASTM C143/C143M1; ASTM C172/C172M1; ASTM C173/C173M1; ASTM C192/C192M; ASTM C231/C231M1; ASTM C617/C617M1; ASTM C1064/C1064M1; ASTM C1231/C1231M1; ASTM C140/C140M; ASTM C7801; ASTM C10191; ASTM C1314; ASTM D698; ASTM D1140; ASTM D15571; ASTM D2216 | Concrete | - |
| 3 | ASTM D4718/D4718M; ASTM D6938; AWS D1.1; AWS D1.3; AWS D1.4; AWS D1.5; AWS D1.8; AISC 360; RCSC | Soil | - |
| 4 | Extracted from the scope document; tables may not line up. View scope for the original. For the tests to which this accreditation applies, please refer to the laboratory’s Construction Materials Scope of Accreditation.
Accredited Laboratory
A2LA has accredited
TERRACON CONSULTANTS, INC.
Tacoma, WA
for technical competence in the field of
Construction Materials Testing
This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017
General requirements for the competence of testing and calibration laboratories. This laboratory also meets the
requirements of any additional program requirements in the Construction Materials field. This accreditation
demonstrates technical competence for a defined scope and the operation of a laboratory quality management
system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).
Presented this 7th day of December 2023.
______________ _________
Mr. Trace McInturff, Vice President, Accreditation Services
For the Accreditation Council
Certificate Number 1002.02
Valid to March 31, 2026
Revised February 24, 2026 | ||
Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.
Location
Other Locations
2 other sites in this organization
Labs with overlapping accredited scope in United States
- Professional Service IndustriesTukwila, WA · ~28 kmA2LAShares 3 accredited methods and materialsASTM D698ASTM E329Concrete
- UES PROFESSIONAL SOLUTIONS 44Houston , TXA2LAShares 3 accredited methods and materialsASTM D698ASTM E329Concrete
- Otto Rosenau & AssociatesSeattle, WA · ~41 kmA2LAShares 2 accredited methods and materialsASTM D698Concrete
- Materials Testing & ConsultingOlympia, WA · ~41 kmA2LAShares 2 accredited methods and materialsASTM D698Concrete
- Mayes Testing Engineers, Inc., A Terracon CompanyLynnwood, WA · ~66 kmA2LAShares 2 accredited methods and materialsAWS D1.1Soil
Accreditation data refreshed from the A2LA register on .
This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the A2LA entry linked above.