NWCEL Northwest Council of Engineering Labs

WAQTC Aggregate Technician

WAQTC Aggregate Technician

Laboratory (L)
EXAM Written (W)
Performance (P)
T2 Sampling of Aggregates C W, P*
R 76 Reducing Samples of Aggregate C, L W, P
T 27 Sieve Analysis of Fine and Coarse C, L W, P
T 11 Materials Finer Than No. 200 by Washing C, L W, P
T 255 Moisture Content of Aggregate C, L W, P
T 176 Sand Equivalent C, L W, P
T 335 Determining the Percent Fracture in Coarse Aggregate C, L W, P
  • Attendance at both training sessions is required prior to taking the written and practical exams.
  • Students must pass the written exam before taking the practical exam.
  • After successfully passing both the written and practical exams, WAQTC certification numbers will be issued by WSDOT.
  • WAQTC certification is accepted in the following states: AK, CO, HI, ID, NM, OR, TX, UT, and WA.

You will receive an Aggregate manual with the WAQTC FOP procedures for the test methods listed above. You can also download these test procedures at www.waqtc.org

Instructor:  Chris Christensen is a registered professional engineer in Washington, Alaska, Nevada and Utah. He has been a WAQTC examiner for the past 15 years. He has worked on dozens of airport and highway projects during his 28 years of experience in the construction testing and inspection industry.

For question, contact Thanh Kieu at (253) 230-8539 or email thanh@aartesting.com.


Module Member Member Exam only * Non-Member Non-Member Exam only *
Aggregate Testing Technician $400.00 $225.00 $480.00 $250.00

* Challenging an exam without completing the classroom instruction is allowed, but is strongly discouraged unless the technician is renewing their certification.