PGL System Modernization Program

  • PGL System Modernization Program
  • PGL System Modernization Program
  • PGL System Modernization Program


Client: Peoples Gas / WEC Energy Group

Location: Chicago, IL


The Infrastructure Upgrade Program (IUP) consists of replacing cast iron gas pipes in the natural gas delivery system with modern polyethylene pipes to reinforce the long term safety and reliability of the system.
There are four main system upgrade goals for the IUP:
1. Retire 1,870 miles of cast iron ductile iron gas mains
2. Upgrade approximately 300,000 service pipes
3. Relocate gas meters from inside of customer facilities to outside
4. Upgrade the gas distribution from a low pressure to a medium pressure system.

To help support the existing Infrastructure Upgrade Program project, d’Escoto, Inc. is providing additional shop/field and site management services to safely and efficiently manage the IUP’s 2016 -2017 portfolio of construction projects. These projects are broken down into three groups:


  • CO – Corrosion
  • SI – System Improvement
  • PI – Public Improvement
  • SE – System Expansion

2. High Pressure Group (Cast Iron)
3. Transmission

Services Provided

d’Escoto, Inc. is providing the following positons to support this program.

  • Field Coordinators to verify documentation of installed work and schedules, and to handle field issues
  • Operations Specialists to act as service markers and verify line of lay (LOL)
  • Compliance Monitoring Inspectors to perform quality inspections and verifications for construction, operations and maintenance activities
  • Certified weld inspectors to verify welds performed when replacement pipeline
  • Coating (NACE) Inspectors to provide on-site inspection during cathodic protection