Unofficial Notice of Invitation to Bid (NIB)

Richmond City is seeking bids from qualified and interested contractors for the following project titled, Sodium Hypochlorite Tank Replacement Project, identified under Solicitation ID: -. Work is to be performed near 601 Canal Blvd, Richmond, CA 94804, USA in Contra Costa County.

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General Project Description

This project involves the replacement of three existing 10,300-gallon Sodium Hypochlorite (SHC) tanks and their ancillary equipment and systems at the Richmond Water Pollution Control Plant (WPCP). The scope includes extensive demolition and removal of existing pipe supports, electrical equipment, instrumentation, control systems, power and signal panels, eyewash stations, and associated utilities within the existing containment area. New installations, for which the owner provides the tanks and certain other items, include the labor and equipment to install the new double-wall SHC storage tanks with seismic restraints, tank level sensors, local displays, all new Schedule 80 CPVC fill and discharge piping systems (replicating existing alignments and sizes), and associated manual and automatic valves. The contractor will also install heat tracing and insulation on the discharge piping, a new fill piping manifold system, and a new Siemens S7-1200 PLC control system in a NEMA 4X stainless steel electrical enclosure. The work encompasses leak testing, system startup and commissioning, provision of as-built drawings, installation of OSHA-compliant signage, demolition debris disposal, O&M manuals, and a specified coating system for CPVC piping, including surface preparation, primer, and finish coats. Additionally, the project includes detailed piping identification labeling, concrete repairs to existing tank equipment pads, and adherence to strict operational continuity requirements for the 24/7 wastewater treatment plant, including maintaining sodium hypochlorite availability for disinfection.

General Bid Items

Quantity: - Unit: - Work Item: Demolition and removal of designated pipe supports. Specifications: Cut and recess remaining anchors a minimum of 2 inches below the surface, repair and finish affected areas to match adjacent surfaces.
Quantity: - Unit: - Work Item: Decommission and removal of designated electrical equipment, instrumentation, and associated control systems. Specifications: Remove all related conduits entirely within demolition limits, and wiring entirely back to the source of power or termination point.
Quantity: - Unit: - Work Item: Demolition of existing eyewash station.
Quantity: - Unit: - Work Item: Demolition of existing power and signal panels. Specifications: Replace with a smaller, stainless steel junction box.
Quantity: - Unit: - Work Item: Disconnect and remove all associated utilities.
Quantity: - Unit: - Work Item: Install owner-provided new double-wall sodium hypochlorite storage tanks, ladders, and level gauges. Specifications: Move tanks from "central island" to designated plant location, complete with seismic restraint cables.
Quantity: - Unit: - Work Item: Install new Schedule 80 CPVC fill and discharge piping systems. Specifications: Replicate the alignment and size of the existing system.
Quantity: - Unit: - Work Item: Replacement of common discharge piping. Specifications: Terminate at a designated connection point within the Disinfection Building; route new piping to follow existing alignment.
Quantity: - Unit: - Work Item: Install new manual ball valves and automatic valves. Specifications: Asahi or similar manual valves; Asahi series 92 electric actuators or similar automatic valves, replicating the existing system.
Quantity: - Unit: - Work Item: Install heat tracing and insulation on the discharge piping. Specifications: Raychem E-100-A devices or similar for heat tracing, replicate existing system insulation.
Quantity: - Unit: - Work Item: Install a new fill piping manifold system. Specifications: Configure for tank selection from a designated operating point located outside the secondary containment area (similar to existing SBS system).
Quantity: - Unit: - Work Item: Mount and connect new level sensors on the tanks (owner-provided sensors).
Quantity: - Unit: - Work Item: Install local displays and new Siemens S7-1200 PLC system (CPU 1215C or equivalent). Specifications: Installed in a single NEMA 4X stainless steel electrical enclosure, complete with all necessary I/O modules for 3-tank control system and stainless steel mounting hardware. Location to be specified on attached photographs.
Quantity: - Unit: - Work Item: Perform leak testing of tanks and piping. Specifications: Per vendor recommendations, using plant reclaimed water.
Quantity: - Unit: - Work Item: Complete start-up and commissioning of all installed equipment. Specifications: Per vendor recommendations.
Quantity: - Unit: - Work Item: Verify proper operation of all systems prior to demolition of the old system.
Quantity: - Unit: - Work Item: Provide stamped as-built drawings. Specifications: (No existing as-builts available for the project).
Quantity: - Unit: - Work Item: Install OSHA-compliant signage.
Quantity: - Unit: - Work Item: Clean up and dispose of all construction debris.
Quantity: - Unit: - Work Item: Submit O&M manuals of new equipment, shop drawings, submittals, and warranty information.
Quantity: - Unit: - Work Item: Coating System Surface Preparation for CPVC piping. Specifications: Clean all CPVC pipe surfaces with isopropyl alcohol or approved solvent cleaner; remove dirt, grease, and contaminants; allow surfaces to dry completely.
Quantity: - Unit: - Work Item: Coating System Primer Coat for CPVC piping. Specifications: Apply one coat of CPVC-compatible primer per manufacturer's instructions; allow proper cure time (typically 15-30 minutes).
Quantity: - Unit: - Work Item: Coating System Finish Coat for CPVC piping. Specifications: Apply two coats of water-based acrylic or latex paint suitable for plastic substrates; color TBD by Veolia O&M; dry film thickness 2-3 mils per coat; allow 24 hours cure time between coats.
Quantity: - Unit: - Work Item: Quality Assurance for Coating System. Specifications: Inspect for uniform coverage and adhesion; touch up any damaged areas before system startup; verify coating will not affect pipe warranty or chemical resistance.
Quantity: - Unit: - Work Item: Piping Identification Labels. Specifications: Label all piping in accordance with ASME A13.1 (Scheme for the Identification of Piping Systems); labels to identify contents, flow direction (e.g., "3W", "Potable Water", "SHC", "FILL", "DISCHARGE"); material: Vinyl, polyester, or aluminum with adhesive backing suitable for WWTP environment; minimum size: 8" length x 2" height for pipes up to 2" diameter, 12" x 3" for larger pipes; background/text color TBD; arrow style: bold, clearly visible directional arrows; font: minimum 1" letter height, sans-serif, bold.
Quantity: - Unit: - Work Item: Installation of Piping Identification Labels. Specifications: Clean pipe surface before application; apply labels on top or sides of horizontal pipes (visible from floor level) and at eye level on vertical pipes; ensure labels are straight, firmly adhered, and protected during construction activities.
Quantity: - Unit: - Work Item: Quality Assurance for Piping Identification Labels. Specifications: Verify all piping is labeled before system startup; confirm flow direction accuracy with P&IDs; replace any damaged or illegible labels.
Quantity: 1 Unit: SF Work Item: Concrete Repairs (less than 1 1/2 inch thick). Specifications: Provide unit pricing. Materials: Sika Corporation "SikaRepair 224" or "SikaTop 123 Plus"; areas must be clean, structurally sound, free of contaminants; remove loose/deteriorated concrete mechanically; saw-cut perimeter to max 1/2 inch; chip concrete substrate to create 1/8 inch deep surface profile; ensure repair areas are min 1/2 inch deep.
Quantity: 1 Unit: SF Work Item: Concrete Repairs (greater than 1 1/2 inch thick). Specifications: Provide unit pricing. Materials: Sika Corporation "SikaRepair 224" or "SikaTop 123 Plus"; areas must be clean, structurally sound, free of contaminants; remove loose/deteriorated concrete mechanically; saw-cut perimeter to max 1/2 inch; chip concrete substrate to create 1/8 inch deep surface profile; ensure repair areas are min 1/2 inch deep. Concrete removal must extend along reinforcing steel until reaching points where the bar is free of corrosion. If active corrosion on reinforcing steel is found, sandblast steel to completely remove rust and contaminants.

NAICS Classification

237110 – Water and Sewer Line and Related Structures Construction, 238210 – Electrical Contractors and Other Wiring Installation Contractors, 238910 – Site Preparation Contractors, 238220 – Plumbing, Heating, and Air-Conditioning Contractors, 332420 – Metal Tank (Heavy Gauge) Manufacturing, 237990 – Other Heavy and Civil Engineering Construction, 238190 – Other Foundation, Structure, and Building Exterior Contractors

Records and Due Date

This bid opportunity was entered into BidAmerica on February 26, 2026, and was last updated on February 26, 2026. All bids and/or proposals are due on March 25, 2026.

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All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Richmond City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Richmond City prior to bidding.