Council approves engineering amendment for Chicago Street combined‑sewer separation project

The council approved a first amendment to the engineering services agreement with HR Green for construction engineering on the Chicago Street combined‑sewer separation in the Highland Basin. Staff explained the city serves roughly 3,000 acres with a combined sewer system that has 10 combined sewer outfalls to the Fox River; the long‑term control plan calls for separating stormwater and sanitary sewer flows to reduce overflows and improve river water quality.