Missouri Springfield Civic Plus #030-2027IFB

Springfield Clarifier 2 Adaptive Inlet and Sludge-Removal System Upgrade

The City of Springfield is seeking bids to replace and upgrade Clarifier 2 at its Southwest Wastewater Treatment Plant, centered on a Passavant-Geiger adaptive inlet system. - Buyer: City of Springfield, Missouri; Division of Purchases and Environmental Services. The bid documents name Senior Buyer Ben Calia and buyer Allen Busick. - Primary OEM: Passavant-Geiger GmbH; its Hydrograv Adapt System is identified as preselected equipment. The proposal also names the brands Passavant, Geiger, Noggerath, Roediger-BioEnergy, and JOISTM, but does not establish that all are project suppliers. - Main work: Remove the existing clarifier mechanism and specified walkway, bridge, and scum equipment; install the adaptive inlet and sludge/scum collection equipment; and complete related mechanical, electrical, instrumentation, controls, piping, and site work. - Equipment quantities: One approximately 23-foot Hydrograv Adapt System with controls and software; four emergency-stop pushbuttons; one 110-foot half-bridge spiral-blade scraper/sludge-removal system; and one scraper control panel. Drawings also call for one 24-inch magnetic flow meter (FIT-2003), one 24-inch buried plug valve, one level element (LE-2001), one level transmitter (LIT-2001), modification of control panel P2-PLC-RTN, and one network switch. - Other specified equipment: Adapt-system and clarifier spare-parts sets. Contractor-provided flow-meter vault and isolation valve are required. The replacement network switch must have at least four 10-Gbps SFP cages and eight 1-Gbps RJ-45 ports, with 20% switching capacity remaining after configuration. - Services: Construction and installation, supplier coordination, engineering and CFD analysis, models and drawings, installation supervision and commissioning, operator training, PLC support, and equipment shipping. SCADA programming is by others; the proposal includes remote monitoring to plant SCADA. The contractor is responsible for installation and interconnections. - Stated equipment pricing: The proposal lists equipment supply at $2,445,474, while the bid documents identify a fixed cost of $2,656,068 for the preselected system. The overall contract value is not established because the remaining work is covered by a bidder-priced lump sum. - Performance and notable terms: Substantial completion is required within 450 calendar days after Notice to Proceed, with final completion within 45 days thereafter. The proposal gives an estimated installation schedule based on drawing review and manufacturing, but no formal overall start date is stated. The proposed adaptive-inlet warranty is five years with annual service visits; sludge-removal equipment has a separate 12-month warranty after commissioning, subject to an 18-month shipment-readiness limit. Missouri prevailing-wage requirements apply.

Description

The City of Springfield is seeking bids for an upgrade to Clarifier 2 at the Southwest Wastewater Treatment Plant, Plant 2. The work concerns an adaptive inlet clarifier upgrade, with bidding documents including project specifications, construction drawings, and a proposal for the Passavant Hydrograv Adapt System. Bids must be submitted electronically through Euna OpenBids by December 10, 2026, at 3:00 PM CST. Addendum No. 1 revises the pre-bid conference and site visit dates and moves the questions cutoff to November 20, 2026.

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