Utility & Pipe Locating using GPR in Santa Clara, CA

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696 Walsh Avenue, Santa Clara, CA 95050

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Your experienced utility locators

Penhall Technologies Scanning Analyst Carlos


  • 11 years in concrete cutting industry
  • OSHA 30 certified
  • GPR scan mentor
  • GSSI utility scan and structure scan mini certified
  • Rd 7000 utility locator certified
  • Volunteer at Hollister co-op preschool as lead grounds maintenance worker
Penhall Technologies Scanning Analyst Elijah


  • GPR Mentor
  • Proficient in using Hilti PSA 1000 GPR Scanner, Hilti PSA 100 field monitor & Profis Software for scan reports
  • Performed more than 10,000 3D image scans within 3-years
  • Successfully completed training for Hilti GPR Scanning
  • Proud Father

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Identify private utility lines before undergoing a patio demolition

locate utilities before undergoing demolition of patioIn Cupertino, a private homeowner wanted to be sure no underground utilities were beneath the surface before chipping away an old patio slab. Penhall Technologies arrived at the home on a Saturday, marked all  utilities, and left the customer feeling confident and ready to dig!

GPR used to locate buried utilities prior to construction

GPR used to locate buried utilities prior to constructionA well-renowned country club in Monterey was undergoing major renovations. The customer wanted to keep the construction timeframe short to avoid disturbancec for both hotel guests and members. A large parking lot was to be repurposed for an additional outdoor dining space. Prior to the demolition of the parking lot, GPR was used to locate and identify underground utilities.

Mark underground cables, wires, and pipes before excavating and laying new sod

Mark underground cables, wires, and pipes before excavating and laying new sodA Hollister high school was planning to renovate their existing baseball fields. New grass and irrigation systems were to be installed. Penhall Technologies performed underground private utility locating with the use of GPR and RD technology to mark all existing water lines.

Utilities located at popular boardwalk parking lot to prepare for crowd improvements

Surveying for subsurface utilitiesAt a popular boardwalk parking lot, underground utilities needed to be located and marked in preparation for summertime crowd improvements. Gas and water lines were identified and marked. In addition, a written field report which was provided to the customer for their records.

Locate and determine the depth of the main water line for commercial property

Identify main water line under concrete slabA Cupertino commercial property was purchased to be converted into a fitness center. The large, bare interior concrete slab needed to be scanned to locate a main water pipe. Penhall Technologies arrived on-site, found the pipe, approximated the depth, and marked it for the customer. The property conversion was able to move forward safely and timely.

Avoid hitting vital utility lines before undergoing tree removal

locate utilities before undergoing tree removal In San Jose at a high-profile technology campus, 15,000 sq foot of underground utility locating was conducted before trees could be removed in a designated area. Penhall Technologies executed the utility locating with the use of the GSSI 400Mhz antenna and the RD7100.