The Standard in Defensible Subsurface Intelligence.

3 Thirteen Subsurface delivers elite subsurface intelligence where precision is non-negotiable.

We specialize in utility locating, ground penetrating radar (GPR), hydro excavation (potholing), and CCTV pipe inspection, providing defensible, field-validated data that protects projects and reduces exposure to risk.

As a certified Small Business Enterprise (SBE), we support contractors, engineers, and public agencies in meeting participation goals and compliance requirements across infrastructure and public works projects.

Our work is disciplined, documented, and evidence-driven. No assumptions. No guesswork. Just verified information teams can build on with confidence.

Core Services

• Utility Locating (EM & Advanced Methods)
• Ground Penetrating Radar (GPR) Concrete Scanning
• Vacuum Excavation / Potholing
• CCTV Pipe Inspection & Video Documentation
• Subsurface Utility Verification & Depiction (Map) Support

Who We Support

• General Contractors
• Civil Engineering Firms
• Public Works Departments
• Water Districts
• School Districts & Educational Campuses

Project Focus

• Infrastructure & Public Works
• Capital Improvement Projects
• Active Construction Sites
• Facilities & Campus Environments

Defensible data. Reduced risk. Absolute clarity.

3 thirteen Subsurface

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