82627B0004-BEDC OB-144A Total Residual Chlorine Optimization Oakwood Beach WRRF

New York City DEP is seeking a design‑build contractor to upgrade the Total Residual Chlorine (TRC) system at the Oakwood Beach Wastewater Resource Recovery Facility. The work includes demolition of existing chlorine contact tanks, meter building and associated equipment, extensive civil and structural repairs, installation of new stainless‑steel slide gates, mud valves, butterfly valves, pump units, and a full instrumentation and control system (PLC, HMI, UPS) to achieve TRC optimization. The contract also requires comprehensive environmental, safety, and DBE compliance, weekly certified payroll reporting, and adherence to a 700‑day schedule from Notice‑to‑Proceed. • Demolition of two 84″ × 60″ chlorine contact tanks, meter building, pumps, gates, and related concrete structures. • New civil works (water mains, road improvements, erosion‑control) and structural concrete repairs throughout the WRRF site. • Mechanical, electrical, and instrumentation installation: stainless‑steel slide‑gates, mud valves, magnetic‑driven centrifugal pumps, induction mixers, MCC panels, and a PLC‑based control system for TRC analysis. • Mandatory regulatory compliance (NYC Building Code, DEP regulations, OSHA, Buy‑America, DBE fair‑share 20 %).