Project Information

Bid Title

On-Call Professional Engineering Services

Issuing Agency

West Basin Municipal Water District

Location

California

Published Date

Jun 15, 2026

Closing Date

Jul 14, 2026

Government Level

State & Local

Status

Closed

Ref. #

RFP-TH-0128

Original Source

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Bid Documents

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Project Description

Project ID: RFP-TH-0128

Title: On-Call Professional Engineering Services

Addenda: 0

Release Date: 6/15/2026

Due Date: 7/14/2026

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On-Call Professional Engineering Services

Request For Proposal

Engineering

30500 , 90610 , 90625 , 90735 , 92500 ... show all

Project ID: RFP-TH-0128

Release Date: Monday, June 15, 2026

· Due Date: Tuesday, July 14, 2026 2:00pm

Posted Monday, June 15, 2026 5:12pm

All dates & times in Pacific Time

Draft Response Events RSVP No Bid28 days, 19 hours, 18 minutes

Post Information

Posted At:Mon, Jun 15, 2026 5:12 PM
Sealed Bid Process:Yes (Bids Sealed / Pricing Sealed)
Private Bid:No

Overview

Summary

West Basin is a public agency that provides imported and recycled drinking water to 17 cities and nearly one million people in the coastal Los Angeles area. West Basin is member agency of the Metropolitan Water District of Southern California. West Basin is committed to providing its customers and communities with water reliability, water quality, sound financial and resource management, customer service and environmental stewardship. West Basin is an internationally recognized expert in water recycling, conservation, water education, and water resource management.

Proposals from Professional qualified engineering consulting firms (Consultant) are being accepted by West Basin Municipal Water District (West Basin), a Municipal Water District, for On-Call Professional Engineering Services . The Consultant will provide professional design and consulting services to support the West Basin Engineering and Operations Departments on an as-needed basis for various New Infrastructure, Rehabilitation and Replacement (R&R), Planning, Customer Development Projects, Production, and Operations Support.

As an overview, the projects may consist of, but are not limited to, the following:

• Hydraulic modeling of West Basin’s distribution systems;
• Engineering evaluations and improvement studies;
• Planning and design of water, recycled water, and wastewater treatment related capital facility improvements;
• Water quality studies and evaluations;
• Engineering services during construction;
• Geotechnical and Environmental work;
• Rehabilitation and Replacement evaluations;
• Asset Management support and evaluations;
• Permitting related activities;
• Development of Capital and Operations & Maintenance (O&M) cost estimates;
• Engineering Reports;
• Design plan checking;
• Surveying and easements and right-of-way;
• Property appraisal;
• Conditional Assessment;
• Membrane monitoring and optimization;
• Mechanical Engineering;
• Civil Engineering;
• Structural Engineering;
• Process Engineering;
• Architectural Services;
• Optimization;
• Electrical; and
• Instrumentation and controls

A detailed listing of the entire Scope of Work is included in Exhibit A of this RFP, and a list of potential projects that may be completed under this On-Call Engineering Agreement is included in Exhibit B.

Background

West Basin utilizes on-call engineering services to deliver Capital Improvement, R&R, Customer Development, and Operations Support projects in a cost efficient and effective manner. The existing on-call engineering services agreements will expire in the summer of 2026; therefore, new professional services agreements will be needed. West Basin’s mission is providing a safe and reliable supply of high-quality water to its customers. West Basin has identified numerous Capital Improvement, R&R, and operation support projects scheduled for completion in the next three years. It is estimated that the total value of engineering services rendered under the on-call agreements will be approximately $3,000,000 to be shared amongst the on-call consultants.

It is anticipated that up to five (5) separate Engineering Firms (Consultants) will be awarded with an Agreement to provide on-call engineering services on a task order basis to help implement these various projects. The term of this new on-call Agreement will be in effect through June 30, 2029.

Each project will be awarded within the Agreement as a task order. Each task order shall be negotiated separately and be awarded as a task order, complete with a scope of work, fee estimate, schedule, and project team organization chart, on an as-needed basis. The Consultant must provide a task order proposal in response to each solicitation from the West Basin project manager. Failure to provide proposals may result in the Consultant being found to be in breach of the Agreement.

Task orders under the on-call agreements will be issued as follows:

• West Basin will provide a scope of work for the task order to each Consultant.
• Consultants will submit abbreviated proposals for each task order to identify the fee estimate, design/engineering technical approach, design/engineering team members, Consultant qualifications, design/project schedule, and number of deliverables.
• Fee estimates shall include hourly labor rates for each proposed team member; subtotals and totals for labor, other direct costs (ODCs), and sub-consultant costs by task; and total costs for each project.
• Task orders will be awarded to a Consultant based on evaluations of proposals for completeness, qualifications, and best value.
• Consultant shall not proceed with the task until West Basin issues a Task Order Release.
• West Basin reserves the right to negotiate the fee for each task order with the Consultant.
• With respect to Task(s) and depending on the size of a specific project, West Basin reserves the right to waive certain sub-tasks mentioned in Section within the Scope of Work and Services (Exhibit A).
• With respect to Design Task(s), and depending on the size of a specific project, West Basin reserves right to request a comprehensive preliminary design report that outlines studies, agencies, permitting and easement requirements, geotechnical investigations, recommendations regarding design and construction constraints, and the design and construction schedule.
• Consultant’s fee schedule. Rate schedules included in the Respondent’s proposal shall serve as the basis for fee estimates in each task order proposal.

Timeline

Solicit Proposals:

June 15, 2026

Pre-Proposal Conference (Non-Mandatory):

June 24, 2026, 3:00pm

Virtual Meeting through Teams

Join: https://teams.microsoft.com/meet/248057647700801?p=rBrZc7H3LdRUfxNF71
Meeting ID: 248 057 647 700 801
Passcode: wr97WA3S
________________________________________
Dial in by phone
+1 213-349-1594,,877591071# United States, Los Angeles
Phone conference ID: 877 591 071#

Last Day for Comments or Questions:

July 2, 2026, 2:00pm

Proposal Due:

July 14, 2026, 2:00pm

Candidate Interviews / Presentations:

Week of July 27, 2026

Notice of Recommended Award:

Week of August 24, 2026

Recommendation to the Board of Directors:

August 24, 2026

Commodity Codes

• NAICS 541330Engineering Services

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