Commitment to Safety • Reliable Results
Responsive Resources • Established Expertise

Penhall Technologies provides utility locating, employing both electromagnetic induction (EMI) and ground penetrating radar (GPR) for privately owned property. We can identify and locate subsurface hazards and obstructions existing in the ground. Reduce the risk and help ensure the safety of your next project by contacting Penhall Technologies for your private utility locating needs.

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Where is the job located?

(*) City

(*) State

(*) Zip Code

What services can we assist you with?

I can confirm this is a private locate. For all public locates please contact 811.

Other Service

To better help you with your request, could you kindly provide the following information:

What are we scanning? Slab on grade, suspended slab, etc.

What are we scanning for? Ex. rebar, tension cables, conduits, etc.

What is the size of the area(s) that need to be scanned? How many areas?

What is the thickness of the slab?

What is the scanning in preparation for?

To better help you with your request, could you kindly provide the following information:

What is the surface that we are performing the locate on? Ex. Ground/Dirt, asphalt, concrete, indoor/outdoor, etc.

What is the size of the area that needs to be scanned in square feet or linear feet?

How many scan locations?

What are we locating? Water, gas, electrical, sewer, etc.

How many utilities are running through the proposed scan area?

Do we have access to meters or utility boxes?

What is the locating in preparation for?

Contact Information

(*) First Name

(*) LastName


(*) Email

(*) Phone


What is the best way to reach you?


Other comments or project details?

Once you submit this form, a Penhall Company representative will contact you within 24 hours. Thank you for the opportunity to earn your business!

The Difference between Private Utility Company and Public Utility Company

  •  Public utility companies provide the service at no cost. However, they can only locate underground lines on public property. In other word, they can only locate public utility lines that generally stop on the trail to your land determined by a meter.
  • Private utility companies help you locate buried lines, sewer pipes, septic tank, etc. on private property. There is a fee to the private locating service which varies based on the scope of the project and the types of lines that need to be identify.

Before calling a private utility locating company, you should:

  • First, dial #8-1-1 to reach your local public utility locator. They will help you determine whether the utilies are on public property.
  • Second, if the public utility company cannot provide the service, contant a private utility locator.
  • Finally, feel free to shop around for the best pricing point and convenience for yourself.

Utility Locating Company utilities round penetrating radar to perform high-quality services

Locate utilities within a building In Westlake Village, CA a customer in a large office building needed to identify and mark all utilities that were running into a particular suite. Using the RD 7100 and GSSI 400MHz antenna, the utilities were found by Penhall, a private locate, who also generated a report for the customer.

Utility Locating Company perform services before a project expansion or remodel

locating utilities in parking lotIn Fullerton, CA a local engineering firm needed to identify whether or not there were any utilities present in an adjacent abandonded parking lot that would be repurposed for an expansion of an existing structure. Penhall Technologies, a utility locating service company, was able to locate and identify the underground utilities and helped keep the project safe and on schedule.

Locate underground utilities before trenching for installing electrical conduit

locating electrical conduit before trenchingElectrical lines at a large hardware store in Anaheim, CA were located prior to digging a trench. GPR technology was used to locate the current location of the electrical conduit and to ensure the new area for the electrical conduit was free and clear of any other hazards or utilities.