Skokie, IL

Terrance J. O'Brien Water Reclamation Plant


Metropolitan Water Reclamation District of Greater Chicago (MWRD)


Greeley and Hansen LLC

Electrical Contractor

Gibson Electric & Technology Solutions


Greeley and Hansen Architects

General Contractor

Walsh Construction

View inside of the state-of-the-art electrical equipment installed at Water Reclamation Plant in Skokie

Value Delivered

Gibson Electric provided an array of electrical construction services for the renovation and expansion of the Terrance J. O’Brien Water Reclamation Plant (WRP).

The project was particularly demanding because the new facility needed to be fully integrated into the existing plant, without interrupting day-to-day operations. The Gibson team’s turnkey coordination between equipment vendors, distributed controls vendors, and plant operators helped the integration of the facilities run smoothly and effectively.

The plant was outfitted with state-of-the-art electrical equipment, including arc blast ducted switchgear for operator safety. The electrical installations also featured cutting-edge corrosion proof methods designed to expand the plant’s life span.

Additionally, Gibson successfully completed the project under budget.

Client Objectives

In order to better serve northeast Chicagoland residents, the MWRD determined it needed to expand the output of the O’Brien WRP and equip the plant with new, advanced technologies. The updated facility would offer residents an upscale technical non- chemical water disinfection process for wastewater treatment and would be an eco- friendly improvement to the local watershed and streams.


The large-scale project involved the installation of over 60,000 feet of conduit and 350,000 feet of wire. From design-build to installation to commissioning, Gibson was involved with a full-array of electrical construction services, including:

  • Temporary power solutions for multiple phased structures
  • Underground electrical installations of duct-bank, manholes, hand-holes, and fiberglass reinforced conduit
  • Installation, testing, and commissioning of all distributed control systems and instrumentation
  • Medium- and low- voltage installation and furnishing, including: cables, terminations, tie-ins, existing retrofits, switchgear, unit substation, transformers, motor control centers, uninterruptable power supply (UPS) systems, and more
  • System integration with existing plant control systems
  • Electrical, controls, and supervisory control and data acquisition (SCADA) connected to advanced ultraviolet disinfection system

Client Background

The O’Brien WRP is one of seven treatment facilities operated by the MWRD, which, altogether, serve over 5-million people and process nearly 450-billion gallons of wastewater annually.