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Freeport outlines $45M phase for wastewater upgrades as new NPDES permit tightens phosphorus and PFAS testing
Summary
City staff presented multi‑phase wastewater upgrades driven by a newly issued NPDES permit that requires phosphorus be reduced to 0.5 mg/L by Jan. 1, 2030, adds PFAS testing obligations and will more than double sludge handling needs; council discussed $41,000 in PFAS sampling costs and design estimates just under $3 million for Phase 2.
City staff and consultants detailed a multi‑phase plan to upgrade Freeport’s wastewater treatment plant after the Illinois EPA issued a National Pollutant Discharge Elimination System (NPDES) permit that tightens phosphorus limits and adds PFAS monitoring requirements.
Manager Boyer and engineering staff outlined the three‑phase program: Phase 1 (currently under construction) is an approximately $60 million upgrade that includes headworks, UV disinfection and a new lab building; Phase 2 — described as sludge handling and digestion work — is estimated at roughly $45 million and is required to begin in 2027 to meet permit deadlines; Phase 3 (primary filtration upgrades) is currently estimated at…
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