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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Penhall locates rebar in a concrete block wall to assure the structural integrity of the wall

locate rebar in a concrete block wall A mechanical contracting company hired Penhall Technologies to provide scanning at a detention center in Indio, CA. Penhall’s GPR Analysts have scanned many areas within this job site over the past few months for multiple venders. In this particular case, the contractor needed to drill holes into an 8” thick concrete block wall for plumbing pipes to go through. Before drilling they needed to locate rebar in the walls, so they could avoid it, assuring the structural integrity of the wall. A GSSI Mini XT, and a Hilti PS1000 was used to locate the rebar successfully and ensured that the contractor could move forward with drilling safely.

Identify underground utilities in existsing parking lot before building a 5-story parking garage

locating utilities in parking lotAt a local Riverside hospital, Penhall Technologies performed a utility locate using GPR on approximately 1000 square feet in a parking lot. The hospital planned to replace the parking lot with a 5-story parking garage. Penhall Technologies conducting the utility survey and marked all found utilities including power and gas lines.

Determine the size of the underground void created by a water leak

locating void caused by water leakAt a Southern California military base, underground utility locating was performed to determine the size of a void that was caused by a water leak. The size of the survey was approximately 45′ x 3′ wide.

Locate utilities before excavation for tree removal

Survey land for buried cables and pipesAt a university campus in California, Penhall Technologies surveyed an approximately 500′ sq feet area lot that had multiple trees. The underground utility locating needed to be performed before trees could be removed. Penhall located and marked underground irrigation lines and communication utilities.

Avoid utilities before undergoing demolition

Identify subsurface conduit in parking lotA newly opened grocery store was not pleased with the placement of the shopping cart barriers throughout their parking lot. Before removing the barriers and reinstalling in new areas, Penhall Technologies was called to perform underground utility locating to help avoid damaging utilities during the demolition and construction. The (5) 15’x 6′ areas were marked free of any underground utilities.

Locate underground utilities before directional boring

locate utilities prior to tree removalBefore directional boring, Penhall Technologies was called out to a newly purchased area of land in Torrance to conduct underground utility locating. The area to be surveyed was roughly 1.5 acres. Penhall Technologies located and marked all utilities and also summarized those findings in the form of a written field report.