Colorado
Division of Professions and Occupations
Gregory D Siefkes
Plumbers - Plumbing Apprentice
License number
3803
Date granted
12/06/1993
Class
Plumbers - Plumbing Apprentice
Status
Active
Address
8310 CHASE WAY, ARVADA, CO, 80003-0003
coloradolicensing.org
ID 28260232
LAST UPDATED 2026-04-20 02:55:37 UTC
LAST UPDATED 2026-04-20 02:55:37 UTC
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