Underground Utility Locating in San Luis Obispo County

What We Locate Underground

Using professional electromagnetic locating equipment, we trace and mark the full range of buried utilities on your property, then flag their path clearly on the surface.

• Gas and propane service lines
• Primary and secondary electrical lines
• Water mains, service lines, and irrigation
• Sewer and storm drain laterals
• Telecom, cable, and fiber optic lines
• Conduit, tracer wire, and risers

Private Utility Locating: Why 811 Isn't Enough

DigAlert (811) notifies public utility owners to mark their lines in the public right-of-way — but it does not cover the private lines on your property. Anything past the meter, plus infrastructure running between buildings, is the property owner's responsibility.

Those private lines are exactly where strikes happen: power to a detached garage or ADU, irrigation and well lines, propane runs to a pool heater or BBQ, and private sewer laterals. Private utility locating closes that gap.

Private Utility Marking You Can Read

Locating is only useful if the marks are clear. We mark located utilities using the APWA uniform color code so everyone on site can read the ground at a glance:

• Red — electric power lines and conduit
• Yellow — gas, oil, steam, and petroleum
• Orange — communication, alarm, and fiber
• Blue — potable water
• Green — sewer and drain lines
• Purple — reclaimed water and irrigation

Pre-Excavation Clearance Before You Break Ground

For trenching, directional boring, deep grading, and foundation work, we sweep the full dig area rather than checking a single line — a complete pre-excavation locate that clears the site before the excavator arrives. It's cheap insurance against an emergency repair, an injured crew member, a stalled schedule, and a contentious change order.

Who We Work With

Contractors need fast scheduling and marks they can trust to protect the bid and the timeline. Homeowners need the private lines found before a fence, pool, tree removal, or ADU. Property managers need vendor digs to happen without a tenant outage or a liability question. We handle all three across San Luis Obispo County.

Our Process

We start with a site walk and review any available plans, then sweep the area with professional locating equipment. We mark each utility by color code, provide depth estimates where soil and line conditions allow, and walk you through what we found in plain language before we leave. Call (805) 549-5752 for a straight quote.