This contract calls for the repair and upgrade of the existing effluent diffuser outfall at the Four Rivers Sanitation Authority wastewater‑treatment plant in Rockford, Illinois. The work includes installing twelve new diffuser fittings, fabricating and installing a stainless‑steel debris screen inside a 66‑inch pipe, excavating and disposing of contaminated river‑bed material, and restoring the site (grading, seeding, erosion control). The contractor must provide all temporary facilities, obtain required USACE and Illinois EPA permits, and complete the work within a 30‑day “workable” schedule after receipt of a Notice to Proceed. The contract is a lump‑sum, fixed‑price award with a $42,000 cash allowance for hazardous material handling and a $300 per day liquidated‑damage clause.