Well No. 10 GAC Treatment and System Upgrades

The City of Norwalk is seeking qualified contractors to design, construct, and commission a comprehensive Granular‑Activated‑Carbon (GAC) water‑treatment upgrade at Well No. 10. The scope covers demolition, site civil works, installation of new well pump and motor, a four‑vessel GAC system, associated prefilt‑ers, a sodium‑hypochlorite disinfection unit, electrical and instrumentation integration to the existing SCADA, and associated civil improvements such as a new access drive, equipment pads, and storm‑water dry‑well. The contract will be awarded to the lowest responsive and responsible bidder, with a mandatory pre‑bid meeting and an online Q&A period. Funding includes up to $2 M from the Water Replenishment District and additional municipal resources; the contractor must meet strict WRD compliance and reporting requirements. • Demolition of existing vault, piping, pumps, and related structures. • Installation of new well pump, motor, GAC pressure vessels, backwash tank, chemical storage and dosing systems, and full electrical/SCADA integration. • Civil improvements: new asphalt access drive, grading, dry‑well, equipment pads, fencing, and site lighting. • Must comply with WRD funding conditions, provide performance and payment bonds, and adhere to a 270‑working‑day construction schedule. • Mandatory pre‑bid meeting (Oct 22 2026) and Q&A cutoff (Oct 27 2026); bid deadline Nov 10 2026; award expected Dec 1 2026.