NWCEL Northwest Council of Engineering Labs

Become a
Special Inspector

›› Introduction
›› License Types
›› Types of Work


Inspection Courses

Reinforced Concrete:
›› Batch Plant
›› Concrete II
›› Concrete Intensive
›› Pre/Post-Tension
›› Shotcrete Intro.
›› Shotcrete Recert.

Steel & Welding:

›› Steel & Welding I
›› Steel & Welding II
›› Steel & Welding Intensive

Masonry Inspection

Ultrasonic Technician
›› Certification Program

Magnetic Particle Testing Level II

Special Inspector Certification Renewal

Lateral Framing Special Inspection

Proprietary Anchors Inspection

Plan Reading

›› In-Place Density
›› Embankment and Base
›› Aggregate
›› Asphalt II

WAQTC In-Place Density Technician

WAQTC In-Place Density Technician

Class Dates: Mar 23rd, 2019
Class Time: 8:00 AM to 4:00 PM
Classroom Location: Richland Community Center (500 Amon Park Dr, Richland, WA 99352)
Laboratory Training Dates: Mar 24th
Laboratory Training Times: 8:00 AM to 4:00 PM
Laboratory Location: Baer Testing (1106 Ledwich Ave, Yakima, WA 98902)
Written Exam Date: Mar 26th (Retake Mar 27th)
Written Exam Time: 8:00 AM to 12:00 AM
Written Exam Location: WSDOT Training Facility Yakima
Practical Exam Dates: Mar 30th & 31st (day and time(s) to be assigned during class)
Practical Exam Times: TBD
Practical Exam Location: Baer Testing (1106 Ledwich Ave, Yakima, WA 98902)

Laboratory (L)
EXAM Written (W)
Performance (P)
T 99 Standard Proctor C W
T 180 Modified Proctor C W
R 75 Family of Curves C, L  
T 272 One Point Proctor C, L W, P
T 255/T 265 Moisture of Aggregate/Soil C, L W, P
T 85 Specific Gravity of Coarse Aggregate C, L  
T 310 Nuclear In-Place Density of Soil/Aggregate C, L W, P
T 209 Theoretical Maximum Density of Asphalt C  
T 166 Bulk Specific Gravity of Asphalt C  
T 355 Nuclear In-Place Density of Asphalt C, L W, P
  • Attendance of 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 In-Place Density 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, PE. Senior Project Manager, AAR Testing. Chris 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 27 years of experience in the construction testing and inspection industry.


Module Member Member Exam only * Non-Member Non-Member Exam only *
In-Place Density Technician $400.00 $225.00 $480.00 $250.00
Embarkment & Base Technician $400.00 $225.00 $480.00 $250.00
In-Place Density Technician AND
Embarkment & Base Technician
$450.00 $275.00 $540.00 $300.00

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

Registration:  Please email Bob Johnson at bob@nwcel.org with student name and company affiliation. Class size is limited, register ASAP to guarantee space.