Unofficial Notice of Invitation to Bid (NIB)

West Basin Municipal Water District is seeking bids from qualified and interested contractors for the following project titled, TORRANCE REFINERY WATER RECYCLING PLANT MICROFILTRATION FEASIBILITY STUDY, identified under Solicitation ID: RFP-TH-0117. Work is to be performed near 17140 S Avalon Blvd, Carson, CA 90746, USA in Los Angeles County.

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General Project Description

This Request for Proposal seeks professional engineering services for a Feasibility Study concerning the Microfiltration (MF) System Replacement at the Torrance Refinery Water Recycling Plant (TRWRP). The existing MF system, installed in 1999, has experienced deterioration and reduced capacity, necessitating equipment replacement and ancillary support. The study's objectives are to identify replacement needs, evaluate options to increase water production capacity, and analyze the potential relocation and installation of the West Basin's potable ultrafiltration system (PUF). The scope includes technical and economic evaluations of various alternatives, site investigations, Class 5 cost estimates, and the preparation of comprehensive reports with recommendations for the future of the MF system.

General Bid Items

Quantity: 1 Unit: LS Work Item: Preparation of the Feasibility Study for the Microfiltration (MF) Replacement at TRWRP.
Quantity: 1 Unit: EA Work Item: Evaluation of "No Project" Alternative (includes continuing existing MF system operations with potable water supplementation, limiting repairs to available parts, routine membrane replacement, investigating economics, O&M costs, life expectancy, limiting factors, risks).
Quantity: 1 Unit: EA Work Item: Evaluation of MF Effluent Replacement with Potable Water Alternative (includes decommissioning the MF system, cost analysis of potable water usage).
Quantity: 1 Unit: EA Work Item: Evaluation of Portable Ultrafiltration (PUF) System Installation at TRWRP Alternative (includes costs for dismantling, relocation, and reinstallation; capacity analysis, combination with no project alternative, and risk assessment).
Quantity: 1 Unit: EA Work Item: Evaluation of MF Trailer(s) or Packaged MF Systems Installation Alternative (includes pad setting, number of units, connections, supporting equipment, site modifications, capacity to produce MF effluent, limiting factors, O&M costs, and potential risks).
Quantity: 1 Unit: LS Work Item: Proposal and Evaluation of other Consultant-proposed Alternatives (minimum of five scenarios evaluated in total, each including project schedule, Class 5 cost estimate, pros/cons, fatal flaw identification, site layouts, and demolition costs).
Quantity: 1 Unit: LS Work Item: Task 1: General Coordination, Meetings, and Project Administration (includes kick-off meeting, biweekly meetings, project schedule development and updates, coordination with sub-consultants, contract administration, document research/review, biweekly progress reports, and monthly invoicing).
Quantity: 1 Unit: LS Work Item: Task 2: Feasibility Study Phase (includes comprehensive utility search and investigation of the project site via ground radar, potholing, or similar; review of all available documents including record drawings, water quality, vendor equipment information, and operational data).

NAICS Classification

Providing professional engineering expertise for a feasibility study related to water treatment and recycling plant infrastructure, Involving evaluation of environmental impacts and regulatory compliance pertinent to water recycling and wastewater treatment, Conducting a detailed study to identify technical solutions and validate alternatives for water treatment system upgrades

Records and Due Date

This bid opportunity was entered into BidAmerica on February 6, 2026, and was last updated on February 23, 2026. All bids and/or proposals are due on February 26, 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 West Basin Municipal Water District. 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 West Basin Municipal Water District prior to bidding.