Question 1

How do I find underground utilities on private property?

Accepted Answer

Public 811 services typically only mark public utilities. To locate underground utilities on private property, a private utility locator uses tools like Ground Penetrating Radar (GPR) and electromagnetic locating to identify gas, electric, water, telecom, and other subsurface lines accurately.

Question 2

Does 811 locate private utilities?

Accepted Answer

No. 811 marks public utilities up to the meter or point of service. Private utility locating services are required to identify privately owned or undocumented utilities beyond that point.

Question 3

Where is my gas line located?

Accepted Answer

Gas lines can run underground in unexpected paths and may not be marked by public services. A professional utility locator can locate gas lines using GPR and electromagnetic methods before excavation or drilling begins.

Question 4

How much does private utility locating cost?

Accepted Answer

Utility locator cost depends on site size, surface conditions, and project complexity. Private utility locating is typically a small investment compared to the cost of utility strikes, repairs, project delays, or safety incidents.

Question 5

Can ground penetrating radar (GPR) find underground utilities?

Accepted Answer

Yes. Ground Penetrating Radar is effective at detecting non-metallic utilities, voids, and anomalies beneath asphalt, concrete, soil, and pavement. It is often used alongside electromagnetic locating for comprehensive results.

Question 6

When should I hire a private utility locator?

Accepted Answer

Hire a private utility locator before excavation, trenching, drilling, coring, or saw cutting—especially when project accuracy, safety, and documentation are required beyond public utility markings.

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2025 Underground Utility Damage Prevention Report