Queen Anne's County Civicplus #BPM058134

Sudlersville Wastewater Treatment Plant ENR Improvement Project – Construction, Equipment, and Control System Upgrades

Queen Anne's County is seeking bids for a comprehensive upgrade to the Sudlersville Wastewater Treatment Plant, focusing on enhanced nitrogen removal and facility modernization. - Government Buyer: - County Commissioners of Queen Anne's County, Department of Public Works, Sanitary District - OEMs and Vendors: - MTU (generator, model 8V1600 DS350) - Square D by Schneider Electric (panelboards) - Parkson (Biolac system improvements) - Watson-Marlow (chemical feed pumps, Model 521V) - Republic Manufacturing (regenerative blowers, KENC-Series Model 4RC610-H26) - Sanitaire (coarse bubble diffusers, Model D-12) - RW Gate Company (slide gates, Model RW750-S) - THERN, INC. (portable davit cranes, Series 5BF5-M1 and 5BW5-M1) - Allen Bradley (CompactLogix PLCs, PanelView Plus HMI) - IDEC (relays and relay bases) - Weidmuller (terminal blocks) - Phoenix Contact (terminal blocks, end brackets) - Eaton (UPS, 3S-750) - Hirschmann (Ethernet switch, Spider 5TX) - Products/Services Requested: - Construction of a cast-in-place concrete Post Anoxic Reactor (PAR) tank - Rehabilitation of Biolac reactor (sludge removal, air diffuser replacement) - Chemical feed system upgrades (including Watson-Marlow pumps and methanol storage tank) - Installation of electrical and control system improvements (Allen Bradley PLCs, HMI, network equipment) - Robotic biosolids removal and transfer - Installation of submersible mixers, regenerative blowers, slide gates, portable davit cranes, instrumentation (DO, ORP, nitrate sensors), and safety equipment - Integration and modification of existing control panels, operator training, and reliability testing - Unique/Notable Requirements: - Mandatory site visit for bidders - DBE/MWBE participation and prevailing wage compliance - Coordination with system integrator for control panel modifications - Warranty and maintenance bond requirements (two-year warranty, 5% maintenance bond) - Multiple phases including solids removal, diffuser replacement, and system startup - Operator training and reliability testing prior to substantial completion - Liquidated damages for delays - Compliance with NEC, OSHA, UL, NEMA, NFPA, ANSI, IEEE, ICEA standards - Robotic biosolids removal and advanced instrumentation for process monitoring

Description

Sealed bids are requested for the construction of a Post Anoxic Reactor (PAR) tank at the Sudlersville Wastewater Treatment Plant in Queen Anne's County, Maryland. The project aims to enhance the plant's nitrogen removal processes to meet permit standards. The scope includes rehabilitation of the existing Biolac reactor, replacement of air diffusers, enhancement of the chemical feed delivery system, construction of a concrete PAR tank, and associated electrical and control facilities. A mandatory site visit is required, and bids are due by September 15, 2026.

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