Gas lines can intersect with sewer lines, creating "cross bores"

To help minimize sidewalk and landscaping damage, new service lines such as gas, electric and cable TV are usually installed by drilling holes horizontally beneath the ground. A “cross bore” is when the new pipe or cable accidentally goes through another underground pipe or cable.

Today, when PG&E installs smaller natural gas lines using underground drilling, we utilize the 811 service to help prevent digging into other lines. This free program notifies utility companies to mark the location of underground lines so digging can be done safely.

Image of a gas pipe running through a sewer pipe

PG&E's list of authorized vendors

Inspections are taking place system wide by subcontractors listed below:

  • AirX Engineering
  • APS Environmental
  • Champion Cleaning Specialists, Inc (CCSI)
  • Express
  • Fletcher Plumbing
  • G2 Integrated Solutions LLC
  • Innerline Engineering
  • Mears, Inc. (formerly Underground Construction)
  • Monarch Pipeline & Hydrovac Inc
  • Murgreen Environmental (MEC)
  • Pinnacle Pipeline Inspection, Inc (PPI)
  • Pipeline Video Inspection & Cleaning LLC (AIMS / PVIC)
  • Professional Pipe Services (ProPipe)
  • Quam
  • Stone Bear Inspection Services
  • Video Inspection Specialist (VIS)