About

Thank you for your interest in Unimark System's durable, color-coded underground utility marking system

Unimark System is used to permanently identify key underground facilities identifying ownership of the utility to reduce the constant need to set-up expensive survey equipment to search out your underground utility.

The American Public Works Association (APWA) approved colors of our surface mounted markers are bright, concise and will illuminate at night for years to come.

Identifying your underground utility with Unimark System can be accomplished while on routine "one call systems alert," routine maintenance or field surveys.

Also, Unimark System promotes the One Call Systems International (OCSI) and Common Ground Alliance (CGA) for Damage Prevention of our vital utility infrastructure.

We welcome your custom marker needs!
APWA Color Codes