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?

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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


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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!

Hilo Utility Locating Projects That Penhall Has Worked On

Locate utilities before tree removal

Penhall Technologies was recently contacted by a homeowner to do some private utility locating services.The client explained that his property had a huge tree stump that he wanted to have removed safely. The tree stump was in an area of the yard that clearly had electrical lines and water lines running through it. The analyst brought out the utility locating equipment, the RD 7100 wand with the frequency transmitter and the cart with a 400MHz antenna with the GSSI 4000 operating system. The tree stump had large running roots which made it difficult to use the cart. However, the analyst was still able to successfully locate an electrical line and two water lines, one of which ran directly under the stump using the RD 7100 wand. The utilities were properly marked and the lines were safely cut and capped prior to excavation of the stump.

Penhall Technologies locates underground storage tanks

Penhall Technologies was recently hired to locate some underground storage tanks or USTs for a business owner in the Hilo area. The location consisted of a storage lot where heavy equipment was kept. Our analysts were instructed to trace the fuel lines and find the USTs. Also, the customer wanted to know the rough dimensions of the tanks. The analysts used an RD 7100 wand, as well as a 400MHz antennae running under the GSSIs 4000 operating system. The equipment used is very effective when trying to locate underground storage tanks. Our analysts were able to locate the USTs as well as mark their dimensions, which were roughly 5’ by 12’, 20’ from the where the old pumps where located. The analysts were also able to clearly mark the lines running from the USTs back to the old pump stations. Then, they generated a report for the client. The client was very satisfied with the outcome.