Connecticut
Department of Consumer Protection
MARK KOSS
Sub-Surface Sewage Installer
License number
5226
Date granted
06/07/1996
Date expires
03/31/2015
Class
Sub-Surface Sewage Installer
Status
Active
Address
COLCHESTER, CT
ctlicensing.org
ID 5078684
LAST UPDATED 2026-03-20 13:53:10 UTC
LAST UPDATED 2026-03-20 13:53:10 UTC
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