Operation & Maintenance of the South Bay Wastewater Treatment Plant

Amendment 0008: aditional Q&As. 

Amendment 0007: Clarification on Page Limits and Proposal Requirements

Ammendment 006

Update section L04B Access Request Deadline: All access requests must be submitted no later than 01/15/2026, at 12:00 PM MST. SharePoint Access Period: Vendors will be granted access to upload proposals starting January 15, 2026Proposal Submission Deadline: All proposals must be uploaded by Friday, January 16th, 2026, at 5:00 PM MST. Late uploads will not be accepted, and expired links will not be reactivated.

Amendment 005 corrects the Governemt's responce to Q&A #110 removing "Hard Copy and Electronic Copy: Both are required."

Corrected response: 

Page Size and Limits: Standard Page Size: 8.5" x 11", Maximum Length: Technical Proposal: 20 double-sided pages (or 40 single-sided), Qualifications Proposal (Phase One): 10 double-sided pages (or 20 single-sided); Exclusions from Page Count: Cover page, table of contents, resumes, client authorization letters, divider pages, and OSHA forms.11" x 17" Sheets: Allowed only for schedules or organizational charts. Counted as one 8.5" x 11" page toward the page limit. Font and Readability: Minimum Font Size: 10-point for body text. This does not apply to graphics, captions, tables, and charts. Legibility: Proposals must be clear, easy to read, and logically presented. Submission Format: Electronic Format: PDF only. Must be either a high-quality scan or a document produced directly to PDF. Page Numbering: All pages must be consecutively numbered, including tables and exhibits.

Amendment 004 incorporates the O&M PWS amended 16 December 2025 and updates the RFI. Both are added to the attachments of this solicitation. 

Amendment 003 Amendment 003 incorporates changes to the PWS, Q&A, adds attachments, and changes the due date of proposal to 16 January 2026. Question due date has passed but questions can still be submitted in accordance with instructions below, but the Contracting Officer has the discretion if an answer is warranted.  

Note - PWS added as attachment. Amendment 002 is adding updating Clauses and changing dates below:

Key Deadlines & Due Dates

Questions & Clarifications

•             Deadline to Submit Questions changed to 10:00 AM PST (11:00 AM MST), November 26, 2025

Proposal Submission

•             SharePoint Access Request Deadline changed to December 5, 2025, 12:00 PM MST

•             SharePoint Upload Window Opens changed to December 8, 2025

Solicitation Close

•             Solicitation Closing Date changed to December 22, 2025, 5:00 PM MT 

Questions shall be submitted via- SharePoint: request access to contact@example.gov, contact@example.gov and contact@example.gov, once access is requested you will receive confirmation. Each vendor must submit all solicitation and site visit questions in writing by 10:00 AM PST (11:00 AM MST) on November 17, 2025 referencing Solicitation No. 191BWC26R0001.

Only the individual who requested access will be granted permission to the vendor’s designated Q&A folder. Access links are unique and must not be shared or forwarded.

All questions must be uploaded directly to that folder, then an email notification must be sent to contact@example.gov confirming submission.

Each question must identify the specific solicitation page or section it refers to.

File Naming Convention
File name must follow this format:
[YYYYMMDD]_[CompanyName]_191BWC26R0001_QA.docx
Example: 20251105_ABC_Engineering_191BWC26R0001_QA.docx

Submission Requirements
1. Upload one consolidated document per company.
2. Use Word or Excel format only.
3. Include page or section references for each question.
4. Do not include photos or unrelated attachments.
5. Questions will be answered publicly through the SAM.gov.

 

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Attachment 14 was revoked 

Amendment 001 - Changing Site Visit date to Friday, 7 November 2025

Current contract 191BWC20C0003 

INTRODUCTION

The United States Section of the International Boundary and Water Commission (USIBWC), has a requirement for contract for the operation and maintenance (O&M) of the South Bay International Wastewater Treatment Plant (SBIWTP) and facilities located in San Diego County, California.  Type of contract, Firm Fixed Priced, Cost Reimbursable, Hybrid, etc. to be determined.  

The Contractor shall provide, all labor, material, management (including bi-national participation with Mexico), and other resources required to perform full-service O&M of the SBIWTP and its conveyance system, plus Canyon Collectors, Pump Stations, and South Bay Land Outfall (SBLO). Full service operation and maintenance is defined as complete facility operation and maintenance, including but not limited to providing day-to-day contract management, planning, supervision, administration, personnel; plant influent and effluent sampling and laboratory testing; equipment operation, maintenance, servicing, repair and replacement; system monitoring and operation; data recording, markups of plant as built, management and reporting; quality control; capital improvements; vehicles and vehicle fleet management, operation, maintenance and repair; housekeeping; grounds maintenance; consumable supplies including chemicals, and other services related to the operation and maintenance of the SBIWTP.   

BACKGROUND  

The SBIWTP is a twenty-five (25) million gallon per day (MGD) wastewater treatment plant located at 2995 Clearwater Way, in San Diego, San Diego County, California, , north of the International Boundary, and near the intersections of Monument and Dairy Mart Roads.  Construction of the plant’s advanced primary treatment phase was completed in September 1997, and construction of the secondary treatment phase was completed in January 2011.  The plant is treating wastewater originating in Tijuana, Baja California, Mexico and the SBIWTP is operated under the authority of the United States Section, International Boundary and Water Commission (USIBWC).  An average of twenty five million gallons per day (25 MGD) of effluent is being discharged through the South Bay Ocean Outfall (SBOO), and is subject to the requirements of the National Pollutant Discharge Elimination System (NPDES) Permit, Permit Number CA0108928, Order Number R9-2023-0009; the California Regional Water Quality Control Board (CRWQCB) Monitoring and Reporting Program, Number: R9-2023-0009; and the California Ocean Plan.   

In 2024, USIBWC awarded a $600M contract for the design and construction of the rehabilitation and expansion of the SBIWTP. USIBWC awarded the contract to PCL Construction (PCL) of Long Beach, California. In turn, PCL selected Stantec Consulting Services, Inc. (Stantec), of San Diego, as the design firm. The project was awarded using the Progressive Design-Build (PDB) contract delivery method consistent with Government contracting practices and regulations. 

Expansion of Capacity 

According to USIBWC's timeline, the design process of the plant’s expansion will unfold in strategic phases, with the complete plant expansion targeted for completion by 2027. The initial phase of the plant’s expansion encompasses design development for the entire SBIWTP scope, while subsequent phases will implement rehabilitation efforts concurrent with the ongoing expansion work. 

During the expansion, the PDB team will work closely with the future SBIWTP Operator of this Contract to rehabilitate the plant while also expanding it. The USIBWC and PDB team aims to enhance the plant's treatment capacity from the current 25 MGD to 35 MGD by 2025, with a subsequent expansion to 60 MGD projected for completion by 2027. This will likely be done in incremental increases of, for example, 10 MGD or 20 MGD at a time, with a maximum potential capacity of 60 MGD. Throughout the incremental expansion period, the Operations and Maintenance contract will be adjusted as needed to accommodate the changing requirements and milestones of the Progressive Design-Build project. While the PDB project team will retain responsibility for all construction activities, modifications to this contract will undergo review and receive appropriate authorization when necessary. 

There will be a sixty (60) day phase in/outperiod. The Contract will consist of a Base Year from date of award 6March 30, 2027 plus four (4) one-year option periods.  This is anticipated to be an unrestricted procurement under the NAICS code 221320 (Sewage Treatment Facilities), the small business size standard is $50 million. 

List of Attachments: 

1. SOM- Submittal Registry (aka deliverables) 
2. Quality Assurance Surveillance Plan (QASP) 
3. Required Performance Metrics (RPM) 
4. NPDES Permit R9-2023-0009; 4A CDO-R9-2025-0139
5. List of Permits 
6. SBIWTP Asset Registry  
7. SBIWTP Condition Assessment Report- January 2024 
8. SBIWTP Asset Maintenance Schedule 
9. SBIWTP Capital Project List- April 2024 
10. Monthly Chemical Dosage from March 2024- March 2025, updated Sep-Oct 2025
11. Canyon Collector Daily Inspection Template 
12. NPDES Annual Biosolids Report 2024 
13. SBIWTP O&M Manual 
14. SBIWTP System Security Plan (Need to Request access through file share), updated 042020
15. NIST SP 800-17r3 
16. Plans/Drawings 
17. Maps 
18. NIST SP 199 
19. SBIWTP Sequence of Operations (SOO) 
20. Wage Determination (WD) 
21. IBWC Spill and Transboundary Plan 2021
22. USIBWC SDFO Org Chart 22A 2019 Contractor Org Chart
23. IBWC SBIWTP Capital Improvement Plan 2025-2029
24. 2025 2025 IBWC Risk Assessment Final
25. 2025 Tijuana wastewater flow diagram
26. Emergency Response Plan
27. SBIWTP PDB O&M Contract PWS 2020
28. SBIWTP PDB Expansion PWS section 01.31.83.01
29. CUI_SBIWTP PDB Early Work Package 1C replacement in kind
30. Temp_Capacity_Incr_BOD_TM8 (need to request access through file share)
31. Temp_Capacity_Inc_OM_TM10 (need to request access through file share)
32. Plant Flow Diagram_2025_Temp_increase 35 mgd (need to request through file share)
33. Thickening & Dewatering Service (need to request through file share)
34. 12 months O&M reports (need to request through file share)
35. 12 months NPDES Reports (need to request through file share)