Johnson County Ionwave #2026-005 Addendum 3

Johnson County Wastewater Asset Renewal Project: Major Equipment and Facility Upgrades

Johnson County Wastewater is seeking bids for a major asset renewal project at the Douglas L. Smith Middle Basin Wastewater Treatment Facility, involving extensive construction, equipment replacement, and system upgrades across multiple buildings. - Government Buyer: - Johnson County Wastewater (JCW), Johnson County, Kansas - Purchasing office contact: Nicole Averell - OEMs and Vendors: - Eaton (Variable Frequency Drives) - Boerger (Rotary Lobe Pumps) - WEMCO (Grit Classifying and Dewatering Equipment) - Assmann/FRP (Sodium Hypochlorite Storage Tanks) - R.E. Pedrotti Co., Inc. (Process Control Integration) - Greenheck and Ruskin (Manual Shutoff Dampers) - Products and Equipment Requested: - Eaton Variable Frequency Drives (VFDs) - Boerger Rotary Lobe Pumps - WEMCO Grit Classifying and Dewatering Equipment - Assmann/FRP Sodium Hypochlorite Storage Tanks (at least 3 tanks) - Manual shutoff dampers (Greenheck Model HBTR-451 or Ruskin equivalent) - Liquid chemical peristaltic hose metering pumps (45 psi max discharge, 60 psig relief) - Primary sludge pumps (6), primary scum pumps (2), settled sewage pumps (3), sludge grinders (6), grit classifiers (2), grit conveyors (3), make-up air units (4), odor control fans (2) - Electrical motor control centers, chemical feed piping, instrumentation and control panels - Pre-engineered fiberglass reinforced plastic building, natural gas standby generator - Cast-in-place concrete (5000 psi, ASTM-compliant) - Services Requested: - Process control integration (R.E. Pedrotti Co., Inc.) - Concrete repair work (allowance for wet well repairs) - Building permit fees (allowance) - Unique/Notable Requirements: - Only one manufacturer per equipment item is allowed; substitutions considered post-award - Strict sequencing and phasing due to operational constraints; uninterrupted facility operations required - Mandatory pre-bid site visit - Allowances for concrete repairs and permit fees - Local preference policies apply; electronic bid submission required - Detailed quality assurance for concrete and equipment installation - Liquidated damages for late completion

Description

This Invitation for Bid (IFB) is for the Douglas L. Smith Middle Basin Asset Renewal Project in Johnson County, Kansas. The project involves furnishing labor, materials, equipment, and services for construction of a new process area MB-17 Sodium Hypochlorite Storage and improvements to existing buildings and site work including yard piping, electrical, paving, grading, erosion control, and restoration. The work covers multiple buildings including MB-2 Solids Processing Building, MB-3 Gravity Thickener Building and Fermenter, MB-7 Administration Building, MB-8 Settled Sewage Pump Station, MB-10 Sodium Hypochlorite Building, MB-11 UV Disinfection Building, and MB-13 BNR Train No. 4 Primary Sludge Pump Station and Odor Control Building. The scope includes structural repairs, equipment replacement, demolition, installation of new generators, pump modifications, and construction of new chemical storage tanks and related facilities.

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