TAI is currently providing phase III construction engineering services for renovating five electrical substations at two wastewater treatment facilities operated by DuPage County Public Works. The upgrades involve medium—and low-voltage electrical equipment as well as standby diesel generators at four locations within the Woodridge-Greene Valley WWTP. Similar improvements and structural modifications to the electrical room at the county's Knollwood WWTP are also underway. The project is scheduled to reach substantial completion by January 2025 and is being constructed by Aldridge Electric.