FIRST NAME  M INTIAL  LAST NAME  SUFFIX  COMPANY   CITY   STATE   ZIP   CERT TYPE   EXPIRATION DATE 
Garrett Webster WSDOT State Material LabOlympiaWA98504Concrete Technologist Level 409/28/2055
Michael Liniger American Rock ProductsPascoWA99301Concrete Technologist Level 409/28/2055
EmrieD.Methvin Spokane Rock ProductsSpokaneWA Concrete Technologist Level 310/28/2055
Jose Diaz Lee ContractorsBattle GroundWA98604Pervious Concrete Technician12/13/2026
Tedd W. Riggan  Camano IslandWA98282RMC Supervisor01/01/2055
Chris Bouma Custom ConcreteBellinghamWA98228Pervious Concrete Installer08/30/2026
Jeff Davis Miles Sand and GravelPuyallupWA98372RMC Dispatcher02/28/2065
Bill Davis  LakewoodWA98439RMC Supervisor01/01/2055
Kent Klizke  RichlandWA99354RMC Supervisor01/01/2055
MarcL.Bradley  LakewoodWA98439RMC Supervisor01/01/2055
Chris Gavigan  DuvallWA98019RMC Supervisor01/01/2055
Sean Rebar Miles Sand & Gravel CompanyPuyallupWA98372RMC Supervisor03/01/2065
Jeremy Johnson Custom Concrete ContractingBellinghamWA98228Pervious Concrete Installer08/30/2026
Michael Moran Pacific Coast ConcreteSilverdaleWA98383Pervious Concrete Technician10/18/2027
Erik Christoferson  SilvanaWA98287RMC Supervisor01/01/2055
Scott Chambers  ArlingtonWA RMC Supervisor01/01/2055
Matthew Willis Custom Concrete ContractingBellinghamWA98228Pervious Concrete Installer08/30/2026
MichaelV.Himango Miles Sand & Gravel CompanySponawayWA98387RMC Dispatcher02/01/2065
Dave Crosswhite Miles Sand & Gravel CompanyPuyallupWA98372RMC Supervisor03/01/2065
Diego Coca CalPortlandSeattleWA98134Concrete Technologist Level 302/12/2055