Scum Separator Building HVAC and Roof Replacement, Capital Project No. 2502

This contract involves the complete demolition of an existing roof and HVAC system at the Scum Separator Building, followed by installation of a new thermoplastic (TPO) roofing assembly, a full Direct‑Digital‑Control (BACnet) HVAC package, associated ductwork, metal railings, roof hatch, and related mechanical, electrical, and natural‑gas services. The work must be finished by 31 August 2026 and includes extended‑operation testing, training, and warranty obligations. • Scope: Roof removal, new TPO roof with safety rail, HVAC replacement (air‑handling units, VFDs, DDC controllers), metal‑duct fabrication (double‑wall galvanized steel per Addendum 2), power ventilators, packaged indirect‑fire‑heated makeup‑air units, and associated electrical and gas‑piping. • Schedule: Pre‑bid meeting 5 Feb 2026 (optional); bid due and opened 17 Feb 2026; award anticipated 23 Feb 2026; substantial completion required by 31 Aug 2026. • Requirements: Contractor must be licensed in Illinois, provide a 5 % bid bond and 100 % performance bond, meet Illinois prevailing‑wage, OSHA, and environmental standards, and supply all labor, materials, equipment, and temporary facilities. • Awards: Contract awarded to Hartwig Mechanical, LLC (lump‑sum award). • Financials: No contract value disclosed; estimated total cost likely in the multi‑million‑dollar range given scope and material specifications.