30W114 Butterfield Road, Warrenville, IL 60555
P: 630-393-2851 F: 630-393-2857
Paul Yerkes
President
pyerkes@chicagotestinglab.com
Eric Brown
Director of Field Services
ebrown@chicagotestinglab.com
Abdul Dahhan, P.E.
VP of Engineering
adahhan@chicagotestinglab.com
Steve Richter
Director of Quality Control
srichter@chicagotestinglab.com
Jeff Rothamer, P.E.
Director of Technical Services
jrothamer@chicagotestinglab.com
Riyad Wahab, PhD, P.E.
Senior Geotechnical Engineer
rwahab@chicagotestinglab.com
Beth Morrison
Office Coordinator/Assistant Project Manager
bmorrison@chicagotestinglab.com
Join the team
