USI Locating Services keeps your project on schedule, your team safe, and saves you real money.


Underground utilities can be damaged by any piece of equipment of any size…even something as innocent as a shovel can inflict thousands of
dollars of damage, create a potentially hazardous situation and delay
your project for days.


High voltage lines can be deadly if struck accidentally; Fiber optic lines
cost thousands of dollars to repair; gas, water, sewer, and tele-communication lines require extensive safety precautions.


In order to promote safety and save you the headache of lost time, money, injuries and insurance claims, USI now offers the most technologically advanced and cost efficient underground utility locating service available in Southern California. Our locating services are based upon our PositiveID locating technology Рcombining  GPR and Electromagnetic locating to mark, locate, and manage underground asset points; delivering the most accurate data possible faster and more cost-efficiently than our competitors.


Underground Solutions PositiveID
California 811 locating services include:

  • Water & Drain Line Locator Service
  • Conduit Locating
  • Television, Telephone, & Communication Line Locating
  • Ground Penetrating Radar
  • Gas Line Locating Service
  • Electrical Line Locating
  • Sewer Line Locator Service
  • Transit & PVC Line Locator Service
  • Septic Tank Locator Service
  • Underground Storage Tank Locator Service



Failure to locate underground assets
results in over

250,000 HITS



Project delays over 3 hours due to utility damage typically costed over


IN 2017