PERFORMANCE

WORK

STATEMENT (PWS)

SBIWTP

OPERATION AND MAINTENANCE (O&M)

USIBWC

23 September 2026

Section Title

Page

A 1.0

Description of Services Background

1.1 Scope of Work 6

1.2 1.2.1 1.2.3

Operations Operations of SBIWTP Operations of Canyon Collectors

1.2.4 Operations of SCADA 13

1.3 1.5

Monitoring and Reporting Requirements Maintenance and Repair

B Laboratory & Regulatory Agency Coordination 24

C Government Furnished Property (GFP) and Services

3.1 Utilities 25

3.2 Joint Inventory 25

D Program Management 26

4.2 Key Staff 26

4.5 Quality Management 31

4.6 Security Requirements 32

4.7 Safety 35

4.8 Contractor Support 36

Appendix A Acronyms 38 Appendix B Appendix C

O&A Report Form List of Attachments

A. DESCRIPTION OF SERVICES

1.0 BACKGROUND. The South Bay International Water Treatment Plant (SBIWTP) was initially designed as a twenty-five million gallon per day (25 MGD) wastewater treatment plant located at 2995 Clearwater Way, in San Diego, California, on the International Boundary.

Construction of the plant’s advanced primary treatment was completed in September 1997, and construction of the secondary treatment was completed in May 2011. From 2011 to 2025, the plant treated an average of 25MGD/day of wastewater originating in Tijuana, Baja California, Mexico.

SBIWTP is operated under the authority and at the direction of the United States Section, International Boundary and Water Commission (USIBWC). An average of 25 MGD of effluent is discharged through the South Bay Ocean Outfall (SBOO) which is subject to the requirements of the National Pollutant Discharge Elimination System (NPDES) Permit, Permit Number CA0108928, Order Number R9-2023-0009, and Order Number R9-2026-0005, As Amended. The NPDES Permit is issued by the California Regional Water Quality Control Board (CRWQCB). It is anticipated that a new NPDES Permit will be issued during the contract period that may have additional requirements outside the current scope. When needed, a modification to this Contract will be prepared to address additional permitting requirements.

Information describing the SBIWTP, SBOO, and other related infrastructure, are referred to as The Facility.

The Facility consists of:

Five diversion structure canyon collectors located at:

Stewart’s Drain Canyon del Sol Silva’s Drain Smuggler’s Gulch Goat Canyon

Two pump stations Hollister Street Pump Station Goat Canyon Pump Station

Two junction boxes Junction Box 1 Junction Box 2

South Bay Land Outfall (SBLO) South Bay Ocean Outfall (SBOO)

(*Note: Ocean Outfall drop shaft, tunnel and riser are not part of this scope of work)

Additionally, other associated infrastructure, such as the pipes and conveyances between the diversion structures, pump stations, and the wastewater treatment plant, are considered part of the Facility.

In 2024, USIBWC successfully awarded a contract for the design and construction of the rehabilitation and expansion of the SBIWTP from 25 MGD to 50 MGD, with a peak hourly flow capacity of 75 MGD. The project was awarded using the Progressive Design-Build (PDB) contract delivery method consistent with Government contracting practices and regulations. 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.

Plant Expansion of Capacity In August 2025, the plant's treatment capacity expanded from the current 25 MGD to 35 MGD. The SBIWTP currently provides 35 MGD of advanced primary treatment; 25 MGD will continue on to receive secondary treatment, and 10 MGD will bypass secondary to the outfall. The treatment additional 10 MGD was authorized through a Cease and Desist Order (“CDO”), R9-2025-0139 issued on August 28, 2025, superseded by NPDES Permit amendment, issued on April 8, 2026.

The ongoing rehabilitation and expansion project scope includes expanding the current 25 MGD SBIWTP to 50 MGD, with a peak hourly flow capacity of 75 MGD. The process of the plant’s expansion will unfold in strategic phases, with the full plant expansion targeted for completion by 2031. The initial phase of the PDB project encompasses design and preconstruction services. The second phase includes the construction services for rehabilitation and expansion of the SBIWTP. The second phase is divided into two major components:

• The primary plant expansion, with an anticipated Notice to Proceed in Fall 2026.

• The secondary plant expansion, anticipated to receive Notice to Proceed in 2027, contingent upon available funding.

In early 2026, the Grit Facility rehabilitation was completed, including replacement of grit classifiers, pumps, blowers, and force main valves and piping. The following additional rehabilitation and expansion efforts are currently underway, including concrete repairs to the Primary Sedimentation Tanks (PSTs) and Effluent Channel, replacement of roofing and odor control systems, upgrades to WAS and PST sludge pumps and control panels, and site work for shoring, excavation, new Headworks, two new PSTs, underground tie-ins, and associated fencing.

Throughout the contract term, major expansion work will continue, including construction of the new integrated Headworks with grit removal and influent pump station, two PSTs, and the SBIWTP storage warehouse (target completion in 2029), followed by full primary treatment expansion involving underground and above ground construction, equipment installation, structural, mechanical, yard piping, and plant-wide electrical and SCADA system upgrades through 2030.

Secondary treatment expansion—including seven new Activated Sludge Tanks (ASTs) and ten new Secondary Sedimentation Tanks (SSTs), is expected to start in late 2027.

During the expansion, the PDB team will work closely with the Contractor to ensure continued operation and maintenance of SBIWTP during the construction services phase and adjusting operations to support design and construction efforts when necessary. The Contractor shall provide close collaboration and extensive coordination with the PDB team to ensure SBIWTP operations are maintained without disruption throughout the expansion project. This support shall involve answering operation or maintenance questions, attend operations and coordination meetings, stay informed of project execution, coordinate haul routes and staging areas, participate in commissioning of new equipment or facilities, assist with plant tie-ins and shutdowns including dewatering tanks, and identify potential operation and maintenance impacts to SBIWTP. The Contractor shall provide information that may require their expertise from their O&M personnel including operations, maintenance, electrical, instrumentation and controls staff. An essential responsibility will include reviewing proposed shutdown plans to verify that plant operations can be maintained and that O&M will not be negatively impacted.

The PDB project team will continue to hold full responsibility for all construction activities associated with the SBIWTP expansion. Throughout the incremental expansion period—during which temporary or permanent equipment and assets are added to the facility—this O&M Contract will be periodically reviewed. Any new operations or maintenance requirements that emerge will be incorporated through the formal contract modification process, ensuring that services not yet identified or captured in the PWS receive appropriate authorization.

Current Treatment Process at the Plant

SBIWTP’s advanced primary treatment process train consists of influent conveyance, preliminary treatment to include mechanical screening, aerated grit removal dewatering, influent pumping, and chemically enhanced primary sedimentation. In order to accept the additional 10 MGD plant flow, for a total of 35 MGD, the chemically-enhanced primary treatment (CEPT) system was re-established in 2025 using iron-salt and anionic polymer injection.

The existing secondary treatment process train consists of activated sludge facilities, secondary sedimentation facilities, and waste activated sludge thickening facilities. The additional 10 MGD bypasses the existing secondary treatment process.

The existing solids processing consists of sludge and skimming pumping facilities, un-stabilized sludge storage, sludge conditioning facilities, belt filter press dewatering and lime stabilization of solids.

CEPT, sludge thickening, and sludge dewatering equipment have been added to accept the plant flow of 35 MGD, and are stand-alone systems with local control panels.

To accommodate the additional solids generated by treating the increased flow of 10 MGD, the following equipment was added to the facility.

• Thickening – two (2) Rotary Drum Thickener (RDT) packages. Packages include rotary drum thickeners, TWAS pumps, polymer pumps for two RDTs, wash water booster pumps, and control panels to supplement the current dissolved air flotation treatment (DAFT) system. (see Attachment 16)

• Dewatering – one (1) Sludge dewatering trailer mounted screw press system to supplement the existing dewatering system. Screw press will be fitted with stand-alone polymer system and a single point sludge cake discharge conveyor. (see Attachment 16). Contractor shall ensure the sludge trailer is checked daily to maintain a balanced trailer loading.

Both advanced primary and secondary processes have the capability of chlorination with sodium hypochlorite, and de-chlorination with sodium bi-sulfite. Stabilized sludge, screenings, and grit will be trucked to Mexico by a Mexican Contractor for dedicated landfill disposal.

1.1 SCOPE OF WORK. The C ontractor shall provide all personnel, equipment, tools, materials, supervision, and other items or services necessary to perform the full operation and maintenance of the Facility.

While the Contractor shall operate the Facility in full compliance with all applicable permits and regulations, the USIBWC retains legal liability for regulatory actions or third-party claims related to permit or legal compliance. The Contractor’s role is to support permit compliance through diligent operations, monitoring, and reporting, but it is not legally liable for permit violations or violations of law unless due to gross negligence or willful misconduct, or failure to perform its obligation in this Contract. This plant is operated at the direction and in the discretion of the Federal government.

Routine Operations and Maintenance. Wastewater influent into the Facility originating in Tijuana, Baja California, Mexico, may be of an unknown nature and conditions. The following conditions, but not limited to, are considered as routine at SBIWTP.

• Heavy and moderate rains, often overwhelm the Facility with heavy sediment, trash, debris, and rocks. Additional maintenance and operating procedures will be required by the Contractor.

• Various parts of the Facility were not designed to manage the characteristics of the influent flow into the SBIWTP, or have the proper redundancies to perform the required maintenance or repair while the plant is in operation. Additional steps and considerations will be required of the Contractor to perform the routine and manufacturer recommended maintenance. (Refer to Section 1.2.2 below)

• The increased average and peak influent flows heighten the likelihood of blinding at the headworks coarse screens. To address these conditions, the Contractor shall update its Preventative Maintenance Plan to include all additional maintenance needs associated with the temporary equipment and key process areas: the headworks coarse screens, grit chamber, channels, Primary Sedimentation Tanks (PSTs), PST effluent channel, Activated Sludge Tanks (ASTs), and the Primary Effluent channel skimming gates.

• Flows to the diversion structure canyon collectors are unpredictable due to the condition and events occur in Mexico. The Contractor shall be prepared to implement Spill and Transboundary Flow Event Prevention and Response Plan at all times.

• At times, and due to circumstances outside the control of the U.S. Section, the SBIWTP may experience periods of zero influent flow caused by unforeseen conditions in Mexico.

Vendors shall be prepared to implement an operational plan that prevents process failure and protects the biological treatment system during these no-flow conditions, including maintaining system stability when no organic loading enters the plant for periods that may extend over several days. When such an unforeseen condition occurs, the Contractor shall follow the established contract modification request process to document impacts, request compensation, and obtain approval for any claims associated with responding to and managing these conditions.

NPDES Permit requirements and responsibilities. The contractor shall only be responsible for the monitoring and reporting requirements of the Facility. The Contractor is not responsible for Ocean Receiving Water and Tijuana River Valley Monitoring Requirements, Regional Monitoring Requirements, or Special Studies Requirements in the NPDES Permit.

a. Place of Performance. All work performed under this PWS shall be performed at The Facility, SBIWTP to include its Canyon Collectors System and pump stations, see Attachment 17 for map. SBIWTP is located at 2995 Dairy Mart Road, San Diego, CA 92154.

b. Period of Performance. Period of Performance is projected to be a 5-year contract (Base Year plus 4 Option Years).

c. Contract Line-Item Numbers (CLINs). Tasks are categorized as follows:

• FFP CLIN #1: Routine operations and maintenance for 25 MGD.

• CLIN #2: Routine operations and maintenance for additional 10 MGD

d. The Contractor shall propose a CLIN mapping matrix per the solicitation Attachment Pricing Structure.

1.1.1 Phase-In and Transition Services. Upon award, the incoming Contractor shall execute

Phase-In and Transition Services over a 60-day period. During this period, the incumbent Contractor retains full responsibility for Plant operations. The incoming Contractor shall coordinate with the Government and incumbent to ensure uninterrupted service and prepare to assume full O&M responsibilities at Phase-In completion. Within 15 calendar days of award, the incoming Contractor shall submit a Transition Plan that (i) identifies key roles and qualifications, staffing coverage, and shift plans; (ii) details communications protocols and continuity of critical systems; (iii) outlines milestones, risk management, and acceptance criteria; and (iv) addresses coordination for data, records, and Government-owned property in accordance with Sections 3.2 (Joint Inventory), 4.8.5 (Records Management), and 4.6 (Security Requirements). The Continuity of Operations Plan (COOP) deliverable and requirements shall be satisfied per Section 4.6.3.

1.2 OPERATIONS

1.2.1 General. The Contractor shall operate the Facility in accordance with (IAW) industry standards, federal, state and local laws and regulations, and permit requirements. The Contractor shall support USIBWC’s compliance with the requirements of the National Pollution Discharge Elimination System (NPDES) permit issued by the California Regional Water Quality Control Board (RWQCB) and the Air Quality Control permits issued by the San Diego Air Pollution Control District (APCD), all other permits issued for the Facilities during the duration of this O&M contract, and all additions and or amendments to all permits and rules throughout the life of the contract. The Contractor shall conduct its activities in compliance with all permits & plans pertaining to SBIWTP wastewater collections and treatment. This includes maintaining data and information on site and made available as required by the regulators. While the Contractor’s operation of the Facilities must be compliant with permit, regulatory, and contract requirements, the Government retains liability for regulatory actions or any action filed or asserted by a third party in court based on Facility’s permit compliance.

1.2.2 Operation & Maintenance of SBIWTP.

The Contractor shall be required to operate the Facilities and maintain staffing twenty-four (24) hours per day, seven (7) days per week at the SBIWTP including Federal Holidays. The Contractor shall be required to coordinate the collection and disposal of solids (sludge and grit), and regulation and control of plant wastewater inflows with representatives of the Mexican Government as a requirement of daily operation of the facilities. Sludge and grit disposal trucks will be operated by Mexican drivers, at no cost to the Contractor. The Contractor is responsible for coordination, as well as loading the trucks and any other weight distribution that is needed to assist the Mexican truck drivers/operators before they head off. Mexico is responsible for all maintenance and/or repair on said trucks.

a. The plant shall be operated in coordination with Mexican Pumping Station No. 1 operators in a manner to maintain an average daily inflow of thirty-five (35) million gallons per day, and to minimize the potential of excess flow within the Tijuana sewer conveyance system. The Contractor shall have at least one bilingual (English and Spanish) operator on-site at all times (24/7) to facilitate communication and coordination with Mexican operators. The Contractor's bilingual operator will be required to communicate with Mexican personnel, such as operators and engineers, through various means including cell phone chat apps, radio, phone/video calls, and in-person meetings.

b. The Contractor shall be required to operate and maintain the infrastructure that controls and conveys influent to the plant, that includes structures such as Junction Boxes 1 and 2 and associated piping; the canyon collectors & associated piping; and pump stations.

Maintenance of this infrastructure requires sediment removal and fluctuating amounts of sediment and can entail urgent repairs.

c. The Contractor shall be solely responsible for providing all chemicals and for payment of all chemical costs incurred in wastewater treatment operations, beginning from the first day of operation. Chemicals are defined as all treatment process chemicals necessary for chemically enhanced primary treatment, sedimentation, sludge conditioning and dewatering, and odor control. No chlorination and de-chlorination is required for the SBIWTP effluent. Offerors shall bid this solicitation based on the highest monthly chemical dosage identified in Attachment 10 which represent values for monthly chemical dosages. The Government will not provide additional compensation, adjustments, or equitable relief for costs associated with missed, omitted, or insufficient sampling or chemical testing requirements. All such costs shall be borne exclusively by the Contractor.

d. The Contractor shall utilize process control data for the different processes at the SBIWTP for proper operation and treatment of wastewater, both liquid and solids trains.

e. The treated effluent discharged through the SBOO is subject to the requirements of the NPDES Permit, Permit Number CA0108928, as Amended. The Contractor shall operate the Facilities in compliance with all permits and regulatory requirements for the Facilities. The Contractor shall process on average, 35 MGD through primary treatment (with CEPT using Ferric Chloride and anionic polymer), 25 MGD through secondary treatment, and bypass up to 10 MGD after the Primary Settling Tanks (PSTs) that includes Chemically Enhanced Primary Treatment (CEPT), through Primary Effluent Bypass Channel and blended with secondary effluent. CEPT shall be kept optimized to achieve a target 75% removal of Total Suspended Solids in the PSTs to achieve an advanced primary effluent. All costs associated with this treatment, including chemical costs, shall be included in the bid price. The Government retains liability for regulatory actions or any action filed or asserted by a third party in court based on Facility’s permit or legal compliance

f. The Contractor shall be responsible for providing the necessary sampling and testing program, as per Monitoring and Reporting Program Requirements in the NPDES Permit. In addition to Influent and Final Effluent (blended) sampling, a composite samples of the primary effluent and secondary effluent is required to monitor the quality of the primary effluent and secondary treatment process prior to blending. The Contractor shall use the same water parameters and same frequency as the current final effluent permit requirements. The additional data will be analyzed and reported along with the blended flow rate by USIBWC. Primary effluent and secondary effluent results shall be provided to USIBWC via the Contracting Officer’s Representative (COR) and are not required to be sent to the Regional Board.

g. Stabilized sludge, screenings, and grit will continue to be trucked to Mexico by a Mexican Contractor for dedicated landfill disposal. Biosolids, sludge, disposal shall be in accordance with NPDES permit AND Ministry of Environment and Natural Resources, Official Mexican Standard Ref. NOM-004-SEMARNAT-2002, Attachment 22 provided, however, that those parameters of NOM-004-SEMARNAT-2002 requiring addition of lime to the biosolids and sludge will not be applicable to Contractor until the lime silos at the SBIWTP are rehabilitated and returned to service.

h. The Contractor shall implement process and equipment inspection schedules for plant and auxiliary facilities operation, and implement and maintain operator round sheets, daily logs, and diaries necessary for satisfactory documentation of equipment operation and maintenance. All data shall be made available, within 15 calendar days after request, for review. The contractor shall inform the COR of any major off-line equipment within 24 hours of discovery of the off-line equipment. The Contractor shall maintain and share with USIBWC at its request maintenance logs reflecting maintenance that was implemented. The Contractor shall also conduct daily inspections of the Canyon Collectors as required by the NPDES permit, record inspections on USIBWC-approved forms, and submit reports to USIBWC via the COR and San Diego Field Office (SDFO) Area Operations Manager (AOM) as required by the NPDES permit.

i. The Contractor shall implement a data management system to maintain complete operational records. The Contractor shall include provisions for networked word processing, spreadsheet and database functions. All documents, recordings, photos/videos, or any other information pertaining to laboratory data, operation records, operations history, maintenance or operations procedures, including technical reports, memoranda and any other such information, that is gathered by the Contractor in the performance of O&M duties under the terms of the contract, whether written or stored electronically, shall remain the sole property of the Government. The Contractor’s data management system must be capable of loading all Government data currently existing within the incumbent Contractor’s data management system. The Contractor is responsible for maintaining the data management system and must implement a maintenance plan for the data management system. All Government-owned data must be made available to USIBWC within 3 business days of USIBWC’s request for such data or, alternatively, stored on a drive that is accessible by USIBWC personnel.

j. The Contractor shall investigate, document, and report all spill events (flows that escape from plant or facilities after initial capture) and/or transboundary wastewater flows (flows that bypass the facilities) in accordance with NPDES Permit, Permit Number CA0108928, as Amended, and the Spill and Transboundary Flow Event Prevention & Response Plan (Attachment 20).

k. The Contractor shall attend bi-national meetings and at times may be asked to present results/summaries of transboundary flows, spill prevention, and influent violations/operational effects of influent constituents, during these meetings. Information obtained at these meetings is confidential and subject to USIBWC approval before release.

l. Operation and maintenance shall be IAW manufacturer’s manuals, instructions, best industry practices. Maintenance shall be scheduled in a nonproprietary enterprise asset management system (EAMS) for each asset, meeting the USIBWC asset definition.

Once the USIBWC owned EAMS is available, the Contractor is responsible for providing all asset inventory data to be incorporated into USIBWC EAMS. It is the contractor’s responsibility to keep the asset inventory up to date as projects are completed for rehab/replacements.

m. The Contractor is responsible for ensuring that an adequate Contractor owned vehicle fleet is provided for the operation and maintenance of the plant and canyon collector structures and conveyance systems.

n. The Contractor shall be solely responsible for providing all fuel and for payment of all fuel costs associated with the operation and maintenance of all the facilities and equipment in the scope of this contract (including gasoline, oils, diesel, lubricants, solvents, etc., required for generator(s) testing and operation, and any equipment purchased, maintained, or rented for Contractor use).

o. The Contractor shall supply and be solely responsible for payment of all labor, materials and supplies for operation and maintenance of the plant, including all buildings and grounds maintenance, duplicating and photocopy supplies of their own administration, first aid and safety supplies, process lab supplies, laboratory equipment, safety equipment, clothing and uniforms, maintenance supplies, and other consumable materials and supplies.

p. Contractor shall provide for and be solely responsible for payment of all cleaning services, trash collection, equipment, rentals, service agreements for equipment, repair services, maintenance services, temporary or part-time help, dedicated gate entry security, legal fees, registrations, dues, postage and freight charges, subscriptions, advertising, printing and binding, photographic services, vehicles and equipment, and other professional services.

q. The Contractor is responsible for the operation and maintenance of all temporary equipment that is installed and commissioned by the PDB team for the increased flow of 10 MGD.

r. Given the routine conditions and operations outlined in section 1.1 of this Performance Work Statement, the Contractor shall ensure built up of grit and debris do not impact plant operations and permit compliance, to include, but not limited to, temporary equipment, coarse screen at headworks, grit chamber, channels, PSTs, PST effluent channel, ASTs, Primary Effluent channel skimming gates.

s. The Contractor shall utilize a designated laydown yard area, with signage, exclusively for the staging, organization, and storage of large-scale equipment and materials that, due to their size, weight, or operational constraints, cannot be reasonably accommodated in other closed facilities.

The Contractor shall maintain an updated, written inventory of all major equipment stored within the laydown yard and provide such inventory to the Owner upon request. The area is to be maintained clean and orderly.

q. The Contractor shall not permit the accumulation of scrap, debris, packaging, pallets, or general refuse within or adjacent to the laydown yard. All trash, waste material, and debris generated by or resulting from the Contractor’s operations shall be collected, securely contained, and completely hauled off-site to an authorized disposal facility at minimum every seven (7) calendar days.

1.2.3 Operation & Maintenance of Canyon Collectors

a. During the dry weather months of April through October, the Canyon Collector structures

(Smuggler’s Gulch, Goat Canyon, Stewart’s Drain, Silva Drain, and Canyon Del Sol) shall be fully cleaned of sediment and debris as necessary each day such that all dry weather sewage flows are captured at all times. Also, Contractor must place and maintain sandbags on the canyon collector weir and catch basins must be cleaned and maintained during Dry Season.

b. During the wet weather months of November through March, the Canyon Collector structures shall be fully cleaned of all debris and put back into service within ninety-six (96) following a storm event of 0.1 inches or greater (i.e., 24 hours after wet weather, as defined in the NPDES Permit. In addition, the sand/grit and blockages interceptors at the Canyon Collectors shall be cleaned as necessary to ensure proper operation.

c. The Contractor has specific responsibilities during spills and/or dry weather transboundary flow event, which is an event where flows bypass the Collectors during dry weather. See Attachment 20 Spill & Transboundary Flow Prevention and Response Plan.

d. The conveyance pipelines for the Canyon Collectors shall be kept free of obstructions at all times and shall be cleaned or flushed as necessary to ensure proper operation. The Contractor shall be solely responsible for the proper off-site disposal of the debris (trash, garbage, sand, rocks, miscellaneous materials, etc.) removed from the Canyon Collectors Systems within seven (7) calendar days of each cleaning event for each canyon, including hauling costs, permit and disposal fees. Removed materials which are not considered suitable for fill shall be disposed of as directed by the COR. Upon completion of clean up, all on-site waste and disposal areas shall be cleaned and the debris removed from the site.

No stockpiling shall be allowed unless directed by the COR. Transportation and disposal shall be in accordance with all applicable State and Federal Environmental regulations. The estimated quantity of materials to be removed and disposed of from the Canyon Collector structures (Smuggler’s Gulch, Goat Canyon, Stewart’s Drain, Silva Drain, and Canyon Del Sol) fluctuates, but is estimated to be 7,000 cubic yards annually. Please note that the amount of sediment and debris can fluctuate significantly based on conditions beyond USIBWC's control. In the event that canyon collectors experience unusually high volumes, the Contractor may request contract modifications via the use of O&A process (ref.

paragraph 1.6). An unusually high period is defined as when canyon collectors receive double the projected sediment amount within a brief timeframe (such as 1-2 weeks) and this elevated level persists without subsiding, requiring immediate attention.

e. In accordance with the Monitoring and Reporting Program Requirements in NPDES Permit, Permit Number CA0108928, as Amended, the Contractor shall conduct daily inspections of each of the Canyon Collectors (Goat Canyon, Smuggler’s Gulch, Canyon del Sol, Silva Drain, and Stewart’s Drain). Additional inspections of the Canyon Collector system shall be conducted to address issues or concerns, such as the potential blockage of the intake screens. The Contractor shall also conduct inspections of each of the canyon collectors during the periods of each rain event, a minimum of once per day during the actual event, such that the events are documented (If the rain event occurs after the initial inspection is performed, a minimum of one more inspection shall be performed and documented to monitor the effects of the rain event).

f. The Contractor shall document all inspections using Attachment 11, complete with photographic evidence, and submit these records to the COR, monthly, as part of the regular O&M report. Each inspection at every location must include all information requested on Attachment 11, along with rain gauge readings (measured from the Goat Canyon Pump Station rain gauge).

g. The Contractor shall also be responsible for the operations of the SBLO and disposal pipeline system, up to and including the Ocean Outfall drop shaft sewage air valve assemblies.

h. Occasionally, maintenance of the Facility may include entry onto non-Government owned land or facilities, where the Contractor must implement the required repair or maintenance. Contractor must coordinate with IBWC so we can secure a right of entry or other required permits for the Contractor for such activity.

1.2.4 Operation and Maintenance of the SCADA System

a. System Description and Ownership

1. The Supervisory Control and Data Acquisition (SCADA) system is owned by the USIBWC and operated/maintained by the Contractor.

2. The SCADA architecture consists of:

o Two Local Control Centers (LCCs) o Inductive Automation Ignition Platform o Windows based workstations, servers, and Human Machine Interface (HMI)s o Program Logic Controller (PLC)s, ControlLogix controllers, field devices, sensors, Remote Terminal Unit (RTU)s

3. The SCADA system is air-gapped from external networks and configured to comply with

FISMA and federal cybersecurity requirements.

4. All hardware, software, licenses, and Information Technology/Operational Technology (IT/OT) components used within SCADA are Government owned assets.

b. Contractor Responsibilities – SCADA IT/OT Operations

The Contractor shall operate, maintain, configure, and support the entire SCADA system, including all IT and OT components.

1. SCADA IT Components (Government Owned)

Contractor shall maintain and support (include but not limited to):

• Windows servers & workstations

• Storage systems & Storage Area Network (SAN) infrastructure

• All networking components supporting SCADA (routers, firewalls, switches, connectivity appliances)

• Backups, data logging, historian functions, and shared data storage

2. SCADA OT Components (Government Owned)

Contractor shall maintain and support (include but not limited to):

• PLCs, ControlLogix controllers, HMIs, RTUs

• Field sensors and instrumentation

• All OT communication and connectivity infrastructure

• All cabling, onsite communication wiring, and local radio/telephone infrastructure

(excludes long haul circuits outside of main campus)

3. Configuration, Upgrades, and Patching

• Perform software, firmware, and configuration updates to all SCADA components.

• Apply system vulnerability remediation in accordance with USIBWC timelines.

• As the Admin for the SCADA system, will assist with integration of SCADA system expansions, upgrades or modifications funded by the Government.

4. Documentation & Cybersecurity Requirements

The Contractor shall develop, maintain, and update:

• Network diagrams

• RMF SOPs, POAMs, risk registers

• Incident response and contingency plans

• Annual tabletop or real-world exercise documentation

• NIST system categorization and system security plans

• Monthly SCADA system status reports (cyber posture, CVE/KEV remediation, upgrades, project status, initiatives)

• Maintain and update an established Sequence of Operation (SOO) manual that documents

SCADA system configuration points and operational processes the SCADA System monitors and maintains. The SOO is provided in Attachment 19.

• Maintain compliance with all Federal and Agency IT/OT Standards, Policies and Regulations

5. Audit Support & Remediation

• Correct findings from federal security audits or assessments within 90 days, when within Contractor control.

• Support USIBWC or federal agency biennial FISMA/NIST assessments.

c. Initial Condition Assessment

Upon award, the Contractor shall perform a comprehensive SCADA IT/OT risk assessment covering the entire plant and SBIWTP area (refer to Section 3.2) including:

• Field instruments

• Connectivity infrastructure

• Network components

• IT/OT interfaces

A proposal addressing required corrective actions shall be submitted in accordance with Section 1.6.

d. Lifecycle Management & Reporting

1. In conjunction with the Condition & Risk Assessment Plan (refer to Section 1.3.6)

• Identify systems/hardware/software that are End of Life (EOL), End of Warranty, or no longer compatible with SCADA

2. Monthly Reporting (to be included in the monthly O&M reports, section 1.3.3) Reports shall include:

• Cybersecurity posture

• Status of POAMs, CVE remediation, projects, system upgrades

• Inventory updates

3. Notification Requirements

• Notify the Government within 4 hours of discovering any failed or non-functioning IT/OT asset outside of Contractor repair scope.

4. IT/OT Inventory

• Maintain complete hardware and software inventory, including make, model, and serial numbers, and provide updates to USIBWC EAMS for asset management.

e. Contractor Corporate Network Requirements (Contractor Owned)

The Contractor shall maintain a separate corporate network to support administrative work and reporting. This network:

• Must not physically or logically connect to the SCADA system

• Must include standard cybersecurity controls (firewalls, smart routers/switches, antivirus)

• Must support data backup and recovery functions

• Requires quarterly vulnerability assessments

• Must have documented cybersecurity procedures submitted to USIBWC for review

f. Controlled Unclassified Information (CUI) Requirements

Contractor corporate systems used to process or store CUI shall comply with:

• NIST SP 800-171 Rev 3 (or latest revision)

• Associated assessment requirements

• Applicable FIPS 199 security categorization standards

g. Training Requirements

All contract employees with SCADA access shall complete annual SCADA system and control system best practices training, developed and administered by USIBWC.

1.2.5 Sampling and Analysis. The current NPDES permit for the Plant is Order No. R9-2026- 0005(effective April 8, 2026), NPDES No. CA0108928. If the Permit is amended or a new NPDES Permit is issued during the Contract period, it may have additional requirements outside the current scope as written in the current permit. If needed, a modification to the Contract will be prepared to address additional permitting requirements

1.2.5.1 The Contractor shall be responsible for implementing and assuring proper sampling protocol, analysis and laboratory quality assurance in accordance with the National Pollution Discharge Elimination System (NPDES) permit. If the Contractor uses an outside laboratory to meet this requirement, the lab must be certified in the state in which the lab is located.

1.2.5.2 The Contractor shall implement, and update the requirements of the Spill and Transboundary Flow Event Prevention and Response Plan for all spill and transboundary flow event, per the NPDES requirement. This includes that Contractor shall respond to and report all spill events (flows that escape from plant or facilities after initial capture or flows that do not exceed the capacity of the canyon collectors) and/or transboundary wastewater flows (flows that bypass the facilities) in accordance with NPDES Permit, Permit Number CA0108928, as Amended and the Spill and Transboundary Flow Event Prevention and Response Plan.

The Contractor shall provide technical support to USIBWC in responding to regulatory inquiries, audits, or enforcement actions. This includes furnishing data, documentation, and subject matter expertise as needed and in a timely manner. The Contractor shall not represent the Government in regulatory proceedings unless explicitly authorized.

1.2.6 Records. A log shall be maintained indicating daily operating activities. Copies of logs and documents, requested under this contract, shall be made available immediately upon request. All operations and laboratory records shall be maintained for five (5) years and originals of each left on site upon contract completion.

1.3 MONITORING AND REPORTING R E Q U I R E M E N T S

The Contractor shall prepare and provide all reports (except for the Ocean Receiving Water and Tijuana River Valley Monitoring) Regional Monitoring Requirements and Special Study Requirements, in accordance with the Attachment E Monitoring and Reporting Program under the Permit. Prior to preparation of the required reports, the Contractor shall review all test results in consultation with the COR and/or USIBWC San Diego Field Office Area Operations Manager (AOM). All reports and records shall be made available to USIBWC prior to upload to the State Water Board’s California Integrated Water Quality System (CIWQS). This data is property of the USIBWC and shall not be altered before providing it to USIBWC.

1.3.2 NPDES Monitor and Reporting Program. The Contractor shall execute all aspects of Attachment E of the Permit to conduct routine and episodic self-monitoring that meets the requirements as specified under 1) General Monitoring, 2) Monitoring Locations, 3) Core Monitoring Requirements, and 7) Reporting Requirements for the Facility. The Contractor shall be responsible for providing the monitoring reports to the COR and SDFO AOM for approval prior to submitting them as required. (please refer to Attch. 02 SOM Submittal Registry as well)

1.3.2.1 Daily Canyon Collector Inspection Report. (NPDES Permit Section 6.3.2.1.2.5.2)

1.3.2.2 Amendment to the Flow Prevention and Response Plan. (NPDES Permit Section 6.3.2.1.3.1.)

1.3.2.3 Preliminary Spill and Transboundary Flow Report. (NPDES Permit Section 6.3.2.3.3.)

1.3.2.4 Certified Spill and Transboundary Flow Report. (NPDES Permit Section 6.3.2.3.4)

1.3.2.5 Treatment Plant Capacity Exceedance Action Plan. (NPDES Permit Section 6.3.5.2)

1.3.2.6 Notification of Influent Significantly Changing. (NPDES Permit Section 6.3.5.3.1.2)

1.3.2.7 Annual Biosolids Report. (NPDES Permit Section 6.3.5.4.8)

1.3.2.8 DMR-QA Study. (NPDES Permit Attachment E, Section 1.7.)

Aside from the reporting requirements within the permit the following are required:

1.3.3 Monthly Operations (O&M) Report - No later than the 15th of each month the Contractor shall submit to the Contracting Officer’s Representative (COR) and Contracting Officer (CO) a report explaining operations for the preceding month specifically including flow data, chemical usage, bio solids activities and a detailed discussion of operational problems and corrective actions. Operations and Maintenance report will include influent and effluent wastewater quality and quantity, quality and quantity of sludge produced, removal efficiencies obtained, chemicals stored and dosages used in processes, repairs and maintenance tasks performed (including equipment off-line) and status of any pending modifications. The Contractor shall also report their detailed preventative maintenance activities performed for the prior month as well as repair activities.

1.3.4 Laboratory Summary Report & Data- a report summarizing laboratory results/data and lab results with QA/QC (to include toxicity reports) for the prior month shall be submitted to the CO and COR by the 15th of each month.

1.3.5 Storm Water. The Contractor shall provide all information in the State of California, State Water Resources Control Board, Annual Report for Storm Water Discharges Associated with Industrial Activities (State Water Resources Control Board, Water Quality Order No. 2014-0057- DWQ, NPDES General Permit No. CAS000001. The Contractor shall submit an electronic copy to the COR by June 10th of each year. The Contractor shall perform all sampling, testing, and analysis as required in the attached report. In addition, the Contractor shall perform and record all visual assessments and conduct the applicable annual comprehensive site compliance evaluation as detailed in the report.

1.3.6 Condition & Risk Assessment Report- The Contractor shall conduct an annual infrastructure condition assessment to assess the condition of all SBIWTP infrastructure, canyon collector & lift stations, facilities, equipment, and its components. The Contractor shall submit a condition assessment report to include the asset description, asset identification, asset location, condition rating, and scoring methodology. The condition assessment shall also include a risk assessment of equipment and risk to USIBWC. The risk assessment shall report on the effectiveness of internal controls and how to mitigate risks for the following year. The condition and risk assessment allows the Government to properly program for major repairs, refurbishments, replacements, and upgrades in future years that are not covered under the O&M Contract. The Contractor’s initial assessment shall be submitted to the COR by 30 September 2027. Thereafter, the Contractor shall submit annual assessments, not later than 30 September of each year.

1.3.7 Five-Year Capital Plan- The Contractor shall provide a Five-Year Capital Plan to project, over a five-year period, major repairs, refurbishments, replacements, and upgrades of infrastructure, facilities, equipment, and components that are required to ensure the continued functionality of the SBIWTP. The Five-Year Capital Plan will allow the Government to properly program for major repairs, refurbishments, replacements, and upgrades in future years that are not covered under the O&M Contract. The Contractor’s initial Five-Year Capital Plan shall be submitted to the COR by 30 Sep 2027. Thereafter, the Contractor shall submit annual Five-Year Capital Plans, not later than 30 September every year.

1.3.9 As-builts- The Contractor shall provide markups/red-lines to the Plant as-builts within thirty (30) calendar days of completion of modification for each modification to the Plant. The markups/redlines shall include, as minimum, the date of the modification, Contractor, and cost.

The modifications shall be provided in an AutoCAD file along with an Adobe Acrobat file.

Plant modifications requiring the approval by a Professional Engineer shall abide by the requirements established by the California Board for Professional Engineers, Land Surveyors, and Geologists. This review and support shall be included in the bid proposal price.

1.3.10 Information Management- The Contractor shall provide an admin network Information Technology (IT) security plan for review and approval by the USIBWC. The plan should address measures and procedures used in providing communications security, continuity and maintenance for the admin network. The Contractor shall assess and validate system documentation, update baseline configuration and documentation, and network diagrams. The Contractor’s initial IT security plan shall be submitted to the COR by 30 Sep 2027. Thereafter, the Contractor shall submit annual Five-Year Capital Plans, not later than 30 September every year.

1.3.11 Standard Operating Procedures- The Contractor shall develop and provide Standard Operating Procedures (SOP) for the unit processes defined in the manuals. SOPs shall include start-up, routine operation, and shutdown procedures for unit process systems. The Contractor may develop SOPs using the O&M Manual and SOPs developed by the previous Operations Contractor as a guide. SOPs shall be reviewed by the Contractor, updated as needed using the O&M Manuals, and made available upon request to the Contracting Officer and COR.

1.3.12 Deferred Maintenance & Repairs Report- The Contractor shall prepare a Deferred Maintenance and Repairs Report for all SBIWTP infrastructure, facilities, equipment, and components. Deferred maintenance is defined as routine maintenance and repairs, one-time repairs, refurbishments, replacements, or upgrades under $200,000 that were not performed when they should have been, or were scheduled to be and which were put off or delayed for a future period. All Deferred Maintenance and Repairs require review and approval by the COR within 15 business days. The Deferred Maintenance and Repairs Report shall be submitted annually no later than January 15th of each year, or can be included within your Five-Year Capital Plan.

1.3.13 Preventative Maintenance Plan (PMP)- The Contractor shall provide, and implement, an annual Preventative Maintenance Plan for all capital assets, to include SBIWTP, temporary plant equipment, pump stations, canyon collector systems, conveyance systems, plant operational buildings, admin. Buildings, HVAC systems, lighting, power distribution, potable water, sewer systems, fire suppression, furnishings of spare parts, critical spare parts, storage equipment and materials. The PMP shall be submitted for approval, no later than 30 September. The CO and COR shall have 30 days to review and provide feedback. The PMP shall be in par with section

1.5.1 Preventative Maintenance Inspection program. The PMP does not need to be submitted every year for review, but Contractor must update as needed.

1.4 NOTICE OF NON-COMPLIANCE. The Contractor shall notify the CO, COR, and AOM as soon as possible but not longer than 12 hours after an event having the potential to invoke a Notice Of Non-Compliance or Notice of Violation (NOV) from the state or federal authorities.

The Contractor shall report spills and transboundary wastewater flows, as previously described, in accordance with Section VI.C.2.d of the NPDES Permit No. CA018928, as Amended. The

Contractor shall also notify CO, COR, and SDFO AOM in writing as soon as possible, but not greater than two (2) calendar days after the date the Contractor became aware of any non-compliance. If an erroneous mistake is made by the Contractor, Contractor shall correct within 7 days (or less) upon notice. The Government may hold the Contractor liable for all fines incurred as a result of non-compliance or notices of violation due to negligence on the part of the Contractor.

1.5 MAINTENANCE/REPAIR

1.5.1 Preventive Maintenance. Preventive maintenance shall mean labor and materials predicted and scheduled for equipment or systems to prevent equipment failure, to extend equipment or parts life to the equipment’s or parts manufacturer’s standard life expectancy or beyond. Contractor must establish a preventative maintenance and inspection (PMI) program for all wastewater related equipment and systems to prevent and correct deficiencies with process equipment and systems. PMI program shall be performed in accordance with manufacturers’ recommended procedures, original equipment manufacturer (OEM) standards, ASME, WEF, and NASSCO. Preventative labor, material and costs in addition to test results shall be tracked in EAMS.