Attachment_A_-_Membrane_Pre-Qualification_-_Phase_IV_WB.pdf

cleans using sodium hypochlorite and caustic, as well as periodic clean in place (CIP) procedures using both oxidizing and acid cleaning solutions.

The currently installed modules are reaching the end of their useful life and require replacement. This solicitation has been prepared to qualify potential suppliers for the replacement of the currently installed modules. Replacement modules must be dimensionally compatible with the existing rack and header system and serve as a direct replacement for the original Memcor CMF-5 510 modules or the currently installed Scinor SMT600-S26 modules, without requiring modifications to existing equipment, piping, or controls.

Ill. GENERAL INFORMATION

A. Respondents are encouraged to carefully review this RFQ in its entirety prior to preparation of their Statement of Qualifications (SQQ).

B. All SQQs submitted will become the property of West Basin.

C. Respondent may modify or amend its SQQ only if West Basin receives the amendment prior to the deadline stated herein for receiving SQQs.

D. A SQQ may be considered non-responsive if conditional, incomplete, or if it contains alterations of form, additions not called for, or other irregularities that may constitute a material change to the SQQ.

E. Pre-Contractual Expenses: West Basin shall not, under any circumstance, be liable for any pre-contractual expenses incurred by Respondents in the preparation of their SQQ. Pre contractual expenses are defined as expenses incurred by the Respondent in preparing its

SQQ in response to this solicitation; submitting that SQQ to West Basin; negotiating with

West Basin any matter related to the SQQ and, any other expenses incurred by the

Respondent prior to the date of award and execution of an Agreement.

F. West Basin reserves the right to:

i. Reject any or all Proposals;

ii. Select the Proposal most advantageous to West Basin;

iii. Verify all information submitted in the Proposal;

iv. Withdraw this solicitation at any time without prior notice and furthermore, makes no representation that any contract will be awarded to any Respondent responding to this solicitation;

v. Award its total requirements to one Respondent or to apportion those requirements among two or more Respondents as West Basin may deem to be in its best interests;

vi. Negotiate the final contract with any Respondent(s) as necessary to serve the best interests of West Basin;

vii. Amend this solicitation;

viii. Amend the final contract to incorporate necessary attachments and exhibits or to reflect negotiations between West Basin and the successful Respondent.

IV. SOLICITATION SCHEDULE

This solicitation is subject to the following schedule:

Solicit Statement of Qualifications

Last day for Respondent comments or questions

West Basin Municipal Water District

May 8, 2026

May 14, 2026

Request for Qualifications

Statement of Qualifications due May 26, 2026

V. SUPPLIER QUESTIONS, REQUESTS FOR CLARIFICATION, REQUESTS FOR EXCEPTIONS

If the Supplier has any questions, requests for clarification, or wishes to make any exceptions regarding any part of this solicitation or its attachments, the Supplier should notify West Basin with their concerns no later than the date and time noted in the timeline. Questions and Requests for Clarification must be submitted by this date through the OpenGov Question and Answer Module.

West Basin will respond to questions and requests for clarifications and exceptions via the OpenGov

Question and Answer Module.

VI. SCOPE OF SERVICES

The Statement of Qualifications is designed to establish the Supplier as an entity with the ability and experience to provide a pressurized microfiltration or ultrafiltration module for direct replacement into the Phase IV submerged membrane filtration system located at the Edward C. Little Water Recycling

Facility without significant modifications to the existing system. The term significant is subject to review and determination by West Basin upon receipt of the SQQ. The District will only approve Suppliers with modules that are the same dimensions as the currently installed Scinor PVDF SMT600-S26 or modules able to be retrofitted for the existing system using Supplier provided components.

Once submittals have been reviewed and evaluated, manufacturers deemed qualified will be sent an RFP for a recommended membrane for demonstration testing at West Basin's facilities. For this solicitation the Supplier shall submit proof of the following:

A. Experience: The supplier must provide proof of experience supplying municipalities with the same product proposed within the last 3 years. The proof of experience can be but not limited to piloting and operational performance data, including feed and product water quality. Two reference facilities will be provided to West Basin. Each shall be a U.S. municipal facility for wastewater treatment, have a minimum plant treatment capacity of 3 mgd, and be clearly identified in the SQQ with contact information.

B. NSF certification including NSF-60 and NSF-419

C. Installed Capacity: Suppliers must provide total installed capacity of the proposed pressurized microfiltration/ultrafiltration product in the United States.

D. OA/QC Procedures

E. Module Specifications: Supplier will provide product literature and dimensional drawings to confirm they can provide a module that allows for direct replacement into the Phase IV submerged membrane filtration system located at the Edward C. Little Water Recycling

Facility without significant modifications to the existing system.

F. Local Support Office: Supplier will provide contact information for the Local Support Office that would be the point of contact for West Basin or its representatives.

VII. STATEMENT OF QUALIFICATION PREPARATION AND SUBMITTAL

A. SUBMITTAL

1. The Suppliers shall post their SOQs electronically in the Proposal Response Section through the e-procurement system.

2. Limit SQQ to 10 pages.

West Basin Municipal Water District Request for Qualifications

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3. SOQs are due BEFORE 2:00 pm, Thursday, May 26, 2026. The E-Procurement System will block submittal attempts after the deadline.

B. RESPONSE REQUIREMENTS

4. The information requested below will be used to evaluate the Respondent's SOQ. Respondents may be deemed non-responsive if they do not respond to all.

5. SOQs must be prepared simply and economically, providing a straightforward, concise description of methodology and approach to satisfy the requirements of this solicitation. Emphasis should be on completeness and clarity of content with sufficient detail to allow for accurate evaluation and comparative analysis.

6. Respondent's SQQ shall be clear, concise, accurate, and comprehensive.

C. SUPPLIER SELECTION

Statement of Qualification evaluation and Supplier selection criteria will be based on the following components:

A. Experience

B. NSF certification including NSF-60 and NSF-419

C. Installed Capacity

D. QA/QC Procedures

E. Module Specifications

F. Local Support Office

West Basin Municipal Water District

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Request for Qualifications