Pipeline Safety Enhancement Program

San Diego Gas & Electric (SDG&E) and Southern California Gas (SoCalGas)

San Diego, California

In 2011, the California Public Utilities Commission (CPUC) ordered all natural gas transmission operators in the State of California to develop an implementation plan to achieve cost effective testing or replacement of transmission pipelines in their system that had not been pressure tested.

PSEP identified various pipeline sections throughout the SDG&E and SoCalGas natural gas system without a record of a pressure test and slated over 200 miles of natural gas pipeline be pressure-tested or replaced.

PSEP also included provisions to upgrade, replace or retrofit over 400 mainline valves in the system with technology allowing them to be opened or closed remotely by system operators from a central control location, or that automatically shuts off the flow of natural gas in the event of a large pressure drop.

As a part of PSEP, GIS Surveyors provided project execution staff for survey, mapping, right of way engineering, GIS services, and utility surveying including research, mapping, designation and potholing. With the company being headquartered in Poway, CA, the initial PSEP support was concentrated in the San Diego region which involved approximately 30 miles of pipeline replacements.

GIS Surveyors worked on the majority of the San Diego portfolio providing GPS surveys for utility base mapping, utility research, land services support including legal descriptions, appraisal exhibits, boundary exhibits and records of survey, as well as construction staking, as-builts surveys and exhibits. Our ability to deliver projects on time, within scope and budget enabled us to expand into the SoCalGas territory.

Key Components:

  • Geodetic Control and GPS Surveys
  • Topographic Surveys
  • Design Surveys
  • Utility Research and Mapping
  • Right of Way Mapping
  • Boundary Surveys
  • Legal Descriptions and Exhibits
  • Construction Staking
  • Construction Surveys
  • As-Built Surveys
  • GIS Analysis