The second phase of improvements to Batavia’s Wastewater Treatment Facility was broken into two sub-phases: Phase 2A Rehabilitation and Phase 2B Expansion. IHC began construction for Phase 2A on September 18 th , 2023, and will continue through 2026. This project includes intensive offsite utility replacement and realignment, bike path realignment, demolition of several large structures within the Facility, replacement of the excess flow facilities, construction of new Headworks including screening, grit removal, and odor control, construction of a new primary clarifier diversion structure, four 68’-diameter primary clarifiers, and a Primary Clarifier Control Building, construction of three new duplex raw sewage pump stations, rehabilitation of the three final clarifiers, construction of a new UV disinfection building, and replacement of the WAS thickening systems.

The Village of Fox Lake engaged Trotter and Associates, Inc. to design and construct a new roadway for the Lakefront Park redevelopment initiative. Valued at approximately $1.4 million, this undertaking will serve as the primary means of access for the residents and businesses along Nippersink Road, adjacent to Lakefront Park. The project also includes new water main improvements installed to bring municipal water to the residents and businesses and updates to the stormwater utilities within the area. Construction began in June 2023, and the roadway opened to the public in November, achieving Substantial Completion. The project is expected to reach Final Completion by May 2024.

The 2015 Facility Plan identified the replacement of the Riverside Lift Station as a priority for the City of St. Charles. The project includes the demolition of the existing lift station (which is partly within the floodway of the Fox River) and the construction of a new, dual-wet-well lift station out of the 500-year floodplain. The new lift station will include an emergency backup generator, two 35 MGD bar screens, a parallel wet well design with eight submersible pumps operating through two existing force mains, a biological odor control system, and a bridge crane. The structure will also provide public restrooms and upgrade the existing historical monument areas nearby. The project began construction in the summer of 2022, screening a portion of tributary raw wastewater in January 2024 and taking all incoming flows in February 2024.

The City of St. Charles contracted with Trotter & Associates, Inc. to perform the Master Plans for their Water and Wastewater utilities in 2023. Using data from the city and through in-depth coordination meetings with city staff, TAI identifies the strengths and weaknesses of each utility from source to discharge. The City will utilize this document for their 5-year and 10-year CIPs to improve and expand both utilities and secure funding for the recommended improvements requiring a loan from the IEPA. 

TAI is contracted with the City of Woodstock to design the “South Plant Phase I Improvements”. This project includes the construction of a new Chemical Feed Building for chemical phosphorus removal, as well as rehabilitation of the existing aerobic digesters. The digesters will be upgraded to include aeration in the center thickening ring to increase digestion capacity and eliminate freezing issues in the winter. Additionally, a cover will be added to the outer ring of Digester 1, and the wasting process will be upgraded to automate and simplify operations. The project also includes improvements to the existing oxidation ditch, installation of dissolved oxygen sensors, and replacing the existing drives with VFDs to improve energy efficiency and dial in the aeration. Finally, we are adding a ring road to the site to improve access for trucks and deliveries, which requires regarding the west side of the site and modifications to the existing excess flow storage lagoon. This project is scheduled to go to bid in early Summer.

Recently, Trotter & Associates performed a bridge inspection for the Glenbard Wastewater Authority. The Village of Lombard originally constructed the bridge, which is located at their combined sewer overflow (CSO) facility. There are no records available for the bridge, so the Trotter Team conducted a detailed “first bridge” inspection to serve as a baseline moving forward. The bridge was found to be in excellent condition, with only minor maintenance items that need to be addressed.

The Village of Hanover Park wastewater treatment facility at 5600 Greenbrook Blvd. was originally constructed in the early 1970s and has undergone several major expansions and rehabilitations. The last major rehabilitation occurred roughly 20 years ago, and the UV disinfection equipment on site today dates to the 1997 expansion. The project includes removing and replacing the three Trojan 3000 units with two Trojan 3000+ units. This project received a grant from the USEPA for roughly 72% of the construction costs, and construction will begin in the Spring of 2024.