The certification(s) for David Gravdahl, ID No. 49331:

Certification Type Certified Expiration
01 Certified Aggregate Technician 04/20/2023 04/20/2028
02 Certified Embankment Technician 04/01/2022 04/01/2027
03 Certified Asphalt Technician 1 04/05/2024 04/05/2029
06 Certified Density Technician 03/31/2022 03/31/2027
07 Quality Control Technician 05/11/2023 05/11/2028
13 Asphalt Concrete Pavement Inspector 03/17/2022 03/31/2027
19 Certified General Construction Inspector 02/11/2022 02/28/2027




   
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