Attch. 23 IBWC SBIWTP - Capital Improvement Plan (2025 - 2029).pdf

South Bay International Wastewater Treatment Plant

Capital Improvement Plan 2025 - 2029

Revision 0

San Diego, IBWC SBIWTP

Table of Contents

1. INTRODUCTION

2. PROPOSED PROJECTS INFORMATION

3. PROJECTS BY YEAR

2025 Summary of Proposed Capital Improvement Projects

4-6

2025 Proposed Capital Improvement Project Details

7-11

2026 Summary of Proposed Capital Improvement Projects

12-13

2026 Proposed Capital Improvement Project Details

14-20

2027-2029 Summary of Proposed Capital Improvement Projects

21-22

2027-2029 Proposed Capital Improvement Project Details

23-32

1. INTRODUCTION

This updated plan recommends proposed capital improvement projects for the South Bay International Wastewater Treatment Plant (SBIWTP) for 5 years over the course of 2025 through 2029, building upon the previous plan with the latest available information. These projects have been identified and prioritized, including development of the associated scope details and costs estimates, in complete cooperation between Veolia Operations & Maintenance (O&M) staff based at the South Bay International Wastewater Treatment Plant, Veolia Municipal Water Asset Management staff and the Veolia Capital Program Management (CPM) West Region team.

This recommended scope of work will directly support consistent operations of the overall facility, mitigate operational consequences of equipment failure and promote the necessary availability and reliability of the associated plant areas.

The International Boundary and Water Commission has successfully partnered with the Veolia CPM and O&M teams to complete emergency work from August 2023 to the current date. This cooperation is ongoing with projects that include 2021 Junction Box-1 Rehabilitation which collects transboundary flow from Tijuana Mexico, WAS/RAS and various pumps and motors replacements throughout the entirety of the facility, the USST 1 & 2 Rehabilitation, and Belt Filter Press Rehabilitation projects. Recently completed projects include the cleaning and rehabilitation of Primary Sedimentation Tanks 1-5, Hollister Lift Station repairs and the Influent Valve, Flow Meter, and Pipe Replacement Project.

2. PROPOSED PROJECTS INFORMATION

The plant systems and equipment listed for capital improvement projects have been selected due to a range of factors including process improvement and optimization opportunities, current asset condition / signs of wear and deterioration, expected and remaining useful life of assets, health / safety and environmental considerations, operational criticality and the consequences of failure.

For assets nearing the end of the expected useful life, investment at this stage will help minimize the risk of complete functional failure of the associated equipment and in-turn serve to better prevent the chance of major unplanned repairs and further mitigate against unwanted operational consequences.

For each year of the plan below, there is an initial Summary of Proposed Capital Improvement Projects table followed by a Proposed Capital Improvement Project Details section which provides detailed information and justifications regarding each individual project / component.

Estimated costs shown reflect the best available approximation at this time, considering all known factors as well as any budgetary quotes obtained, and are listed in present-day dollar figures. Some costs will be subject to change as the projects are further developed and associated equipment quotes are updated over time relative to the planned timing of the project. As funding for these proposed capital projects is approved, certain costs may also change based on further scope discovery during planning, design and during the construction bid submission process.

Method of Project Delivery Project management / execution by Veolia CPM Team in coordination with Veolia O&M Team.

3. PROJECTS BY YEAR

This section provides summary tables and subsequent project details pages for all proposed capital improvement projects which are grouped together by each year covered in the plan.

Summary of Proposed Capital Improvement Projects

Project Description Project Component Scope of Work Summary Asset

Install Date Estimated

Cost

Lift Station(s) Rehabilitation

Goat Canyon and Hollister Lift Station Rehabilitation

Complete replacement of Goat Canyon and Hollister Lift Stations

- Electrical Upgrades

- VFD Upgrades (Goat)

- Odor Scrubber Replacement

- Surge Tank Replacement

- Inlet MOV Replacement

- Generator Controls

Replacement

- Warrick probe for surge tank room

- Wetwell bubbler replacement

- Checks and Plug Valves

- Nuisance Pumps

1996 $15,000,000

SST & AST

Rehabilitation

Replacement of key equipment in the secondary process

SST & AST Rehabilitation

- Clean tanks

- Replace remaining large Imler mixers

- Secondary Skimming Pump

1A/1B

- AST/SST Tank Drain Pumps

- Replace diffusers

- Piping replacement for sprayers

- Replace drives

- Add water cannons

- New chains & flights

2008 $15,010,000

Install Date

Estimated Cost

- New I&C - actuators and air valves, DO probe addition to even number tanks

- Re-write PLC programming and HMI screens

- TSS meter for DAF and Primary (good for process control)

- Spare conduit and electrical installation

- Strainers

- Addition of Neuros Blowers

- SST underflow readings tied to

PLC

- 2 EQ Basin VFD’s

- BMCV 1&2 valve and actuator replacement

- Adding a 4th blower

- Soft start for remaining blowers

- AST and SST inlet isolating valves

- TWAS and WAS meters

- RAS valves and meters

Headworks Upgrades

Replacement of key components at Headworks

- VFD’s for 1, 3, 5, 6 & Soft Starts

- IPs 2 & 4 Soft Starts and VFDs

- Replace 6 plug and check valves

- Rotorks Upgrade

- Install H2S alarm

- Gates for Barscreen Influent and Effluent

- New electrical (on racks)

- New LCP

- Transformers

- Re landing IP faults to the PLC not the VFDs

- IP VFDs integrated into PLC programming and HMI

- Upgrade seal water sensor to individual pumps

- Bubbler replacement

- Requires bypass

$10,000,000

Install Date

Estimated Cost

Grit and Aeration Package

Replacement of key equipment in the grit removal process

- Three (3) grit classifiers

- Six (6) grit gallery pumps

- Six (6) grit pump VFD’s

- Two (2) primary channel air blowers

- Two (2) grit air blowers

- Replace piping in grit classifiers and grit gallery

- Short circuit arc flash study at

SBIWTP

- Rehab of diffusers in PIC and

PEC and cleaning

- Grit Chamber bypass

$7,300,000

SCADA

Server UPS

Replacement

- Floor mounted UPS replacement with extended batteries

- Manual bypass to isolate

- Integrated to HMI

- Recommend SCADA server upgrades

$2,200,000

Total Estimated Cost $49,510,000

Proposed Capital Improvement Project Details

Project Name Lift Station Rehabilitations

Project Description Goat Canyon and Hollister Lift Station Rehabilitations

Assets Included Goat Canyon Lift Station Hollister Lift Station

Asset Install Date 1996

Scope of Work

In kind replacements of Goat Canyon and Hollister Lift Stations including but not limited to:

- Surge tank replacements

- VFD upgrades

- Electrical upgrades

- Odor Scrubber Replacement

- Generator and Controls Replacement

- Wetwell bubbler replacement

- Pumps and bases

- Check and plug valves

- Nuisance pumps

- Sluice gates

- Roof replacements

Problem / Opportunity Goat Canyon and Hollister Lift Station have had failures from large amounts of silts and solids damaging pumps, motors and other necessary equipment needed to mitigate transboundary flows.

Recommended Solution/Basis of Recommendation

Rehabilitate, upgrade and install new equipment to include pumps, motors, generators, a new odor reduction facility, upgraded electrical and SCADA controls and new roof to protect installed critical assets.

Known failures, assessments, and tests conducted from O&M, CPM and contractors identified failures or the high potential for failure that could result in SSO’s through visual, operational, conductivity and other tests measuring the longevity and operational necessity of equipment.

Measurable Benefits This project will complement the SBIWTP by keeping it in environmental compliance, help increase the expected useful life of the equipment and properly mitigate future transboundary spills

Project Cost Estimate $15,000,000

Project Name AST & SST Rehabilitations

Project Description The AST and SST Rehabilitation Project involves the comprehensive cleaning and refurbishment upgrades of the facility's Aeration/Activated Sludge Tanks and Secondary Sedimentation Tanks.

Assets Included

TANK, SLUDGE, ACTIVATED AST1 - 7

DIFFUSERS, TANK, ACTIVATED SLUDGE AST1 - 7-DG

PUMP, MIXED LIQUOR, INTERMEDIATE IMLRP1 - 7

COLLECTOR, SECONDARY SLUDGE SSC1 - 13

DRIVE, SKIMMING, SECONDARY (ROTORK ACTUATOR) SSKS1-13

VALVE, SPRAY, SKIMMING, SECONDARY SSKSV1 - 13

PUMP, SECONDARY SKIMMINGS SSKP1A & SSKP1B

STRAINER, NPW2P, NORTH NPW-STR-N & SOUTH NPW-STR-S

BLOWER, AIR, PROCESS PAB1 - 3, ASTDP1, SSTDP1, ASTMX’s

Asset Install Date 2008

Scope of Work

Rehabilitate AST & SST Components:

- Clean tanks

- Replace large mixers

- Replace diffusers

- Piping replacement for sprayers

- Replace drives

- Add water cannons

- New chains & flights & shoes & sprockets & scum pipes

- New I&C

- Repair concrete

- Rehab to secondary skimming pump station

- Strainers

- Replace skimmings pumps

- Neuros blowers

Problem / Opportunity

The lifespan and operability of complex equipment is continuously compromised from large flows the SBIWTP receives. This critical project aims to extend the lifespan of these essential components by improving treatment efficiency, and will ensure compliance with current and future regulatory requirements.

Recommended Solution/Basis of Recommendation

Clean and rehabilitate SST/AST tanks and replace vital components to extend the lifespan of the equipment. Equipment failure due to large amounts of sediment damaging tanks and also due to age.

Measurable Benefits

The rehabilitation will address structural issues, upgrade aeration systems, improve sludge collection mechanisms, and enhance overall operational efficiency. This project is crucial for maintaining the plant's treatment capacity and improving the quality of treated effluent.

Project Cost Estimate $15,010,000

Project Name Headworks Upgrades

Project Description The Headworks Upgrades Project involves comprehensive improvements to the initial treatment processes at the facility.

Assets Included

STRUCTURE/BUILDING, HW (HEADWORKS) 00100-HWE-BLDG

PIPING, PUMP, INFLUENT 00200-PG

SUBSTATION, TRANSFORMER, 12KV, HW 00240-SUBSTATION, A &

B

Asset Install Date 1996

Scope of Work

Upgrades to Mechanical & Electrical Components of Headworks:

- Reroute existing conduit systems overhead on a steel system

- Installation of (6) 30” motorized plug valves & (6) check valves

- Installation of course bubble diffusers

- Installation of (6) air relief valves

- Installation of (2) new 2000kva transformers

- Influent pump plug valves and controls upgrades

- Bypass the headworks facility to conduct work

Problem / Opportunity

The transformers noted are the main transformers for the headworks treatment process. Failure of these transformers would require the shutdown of critical processes and supplemental generators would need to be brought in to keep the plant running during repairs.

Flooding of the headworks in the past brought significant amounts of sediment and debris that has caused underground electrical conductivity issues and deterioration of wiring, as well as problems with the mechanical elements in the pump discharge piping (check valves, plug valves, air relief valves, etc.), which greatly complicates the operation of the systems.

Recommended Solution/Basis of Recommendation

Current condition / age (end of expected useful life) / lack of available parts

Measurable Benefits

The project will modernize existing equipment, implement new technologies, and improve overall system reliability and performance, alongside providing reliability and continuity of power to the facility, which will help address problems caused by increased flows and sediments.

Project Cost Estimate $10,000,000

Project Name Grit and Aeration Rehabilitation

Project Description Grit and Aeration Rehabilitation

Assets Included Hydrogritters, Grit VFD’s, Grit Pumps and Piping, Grit Blowers, Primary Channel Blowers, Short Circuit and Arc Flash Coordination Study

Asset Install Date 1996

Scope of Work

Rehabilitation of Grit Removal :

- 3 grit classifiers

- 6 grit gallery pumps

- 6 grit pump VFDs

- 2 primary channel air blowers

- 2 grit air blowers

- Piping in grit classifier and gallery

- Conduct a short circuit arc flash study.

Problem / Opportunity

The existing primary channel blowers #1 and #2, two (2) grit blowers and grit pumps have all failed due to excessive wear and tear from sand and debris in the influent flow. Tropical Storm Hilary exacerbated the vulnerabilities of an already at-risk treatment plant (due to plant age and repeated above-capacity flows), accelerating damage primarily through additional excessive flows and an influx of debris. Trash, sediment, and debris were carried by these excessive flows into the pumps, piping and tanks throughout the plant, and ultimately due to the excessive wear and tear, the blowers and pumps failed. These blowers and pumps are a key component of the treatment process. Replacement of these components (which are at or near the end of life) is essential to optimize the treatment process and prevent failures that could lead to permit violations.

Recommended Solution/Basis of Recommendation

Without prompt action, the treatment process will be severely compromised, jeopardizing the ability to meet permit requirements and exposing SBIWTP to the risk of violations. The replacement of these critical components is imperative for restoring the integrity of effluent wastewater treatment infrastructure at SBIWTP and maintaining compliance with regulatory standards for wastewater quality.

Moreover, the replacement of this equipment is a matter of paramount importance for safeguarding human health and safety. Failure to act swiftly will increase the risk of discharges. The rehabilitation and replacements are required to maintain safe and reliable operations of

SBIWTP.

Project Cost Estimate $7,300,000

Project Name SCADA Server UPS Replacement

The SCADA Server Uninterrupted Power Supply (UPS) Replacement Project is a critical infrastructure upgrade initiative focused on enhancing the reliability and resilience of the plant's control systems through modern uninterruptible power supply implementation and associated SCADA improvements.

Assets Included Various UPS and SCADA equipment replacement, with the addition of new assets to improve system functionality.

Asset Install Date 2008

Scope of Work

Upgrades to the New Floor-Mounted UPS System:

- Industrial-grade UPS units

- Extended battery backup capacity

- Manual bypass switching system

- Advanced monitoring capabilities

- Network integration features

- Temperature monitoring

- Remote management capability

SCADA Server Upgrades:

- Hardware modernization

- Operating system updates

- Security enhancements

- Virtualization capabilities

- Redundancy improvements

- Backup systems enhancement

Problem / Opportunity Aging equipment - Upgrade and modernize Hardware

Recommended Solution/Basis of

VRecommendation

This project increases system reliability by addressing the critical need for continuous power protection, replacing aging existing UPS infrastructure, enhancing backup power duration, and improving maintenance capabilities. Additional benefits include increased operational security through protection against power fluctuations, the reduced risk of data loss, enhanced system availability, and better disaster recovery capabilities. The project also modernizes monitoring capabilities, improves integration features, enhances management tools, and provides better efficiency ratings.

Measurable Benefits System Performance, Operational Improvements, Risk Reduction

Project Cost Estimate $2,200,000

Install Date Estimated

Cost

Plant Lighting Upgrade

(12) locations throughout the

SBIWTP

- Upgrade existing plant lighting with new LED lighting

1996 $6,000,000

Primary and Secondary

Non Pot Upgrades

Primary and Secondary Non Potable Water Systems

- New strainers

- New victaulics

- New plug and check valves

- Instrumentation, including flow meters

- SCADA upgrades

- Compressor Motors

- Compressor

- Pressure Vessel

1996/2006 $4,000,000

Odor Control Upgrades

Odor Control Scrubber Systems

- USST

- BFP/ Solids

Processing

- Headworks

- PST’s

- Chemical tank rehab

- Supply fans

- Exhaust fans

- Integrate odor reduction ancillary instrumentation to PLC programming and

HMI

- Control panel upgrades

1996 $7,500,000

PLC Migration

- Blowers

- Secondary Non

Pot

- Secondary PLC

- Upgrading PLC’s throughout plant

- Replace all aeration blower PLC’s

- Implement redundancy for secondary PLC

- Redundant network switches

- Non Pot - device level ring configuration

- Replace input/output cards within secondary

$1,000,000

Install Date

Estimated Cost

- Switchgear PLC replacement migration and have redundancy

- Coordination w/ CAT Hawthorne

- HMI screen integration

- Breaker readout device replacement(s) and integration

- Cathodic Protection

Effluent Flow Meter Replacement

- Replace 48” flow meter

- Control panel replacement

- Fiber loop around primary and secondary

- Canyon Collector meter re-route wiring

- Recycle flow meter - for drain and canyon flow coming in to facility

- Valve replacement

- Bypass needed

- Permanent Bypass

$6,750,000

MCC Buckets Upgrades

- MCC buckets for primary system

- Ground fault study

- Breaker coordination

$1,500,000

HVAC

Upgrades

- HVAC upgrades at MCC and control panels

- Increase efficiency for

HVAC

$5,000,000

Total Estimated Cost $28,500,000

Project Name Plant Lighting Upgrades Project Description The primary goal of this project is to upgrade and modernize the lighting systems throughout the wastewater treatment plant facility.

Assets Included

Bronze and Gray Light Poles, Headworks area, Primary Sedimentation Area, Secondary Sedimentation Area, Activated Sludge Area, Main Switchgear Maintenance Building, Daft EQ Gens Area, Solids Processing Area, Administration Building, Hollister Pump Station and Goat Canyon Pump Station.

Asset Install Date 1996

Scope of Work Provide and installation of new LED light fixtures, verification circuits feeding light fixtures involved and update panel schedules and as builts, verify integrity of existing wiring, verify light controls, Problem / Opportunity

Many of the plant's area lighting fixtures are 25 years old and failing and are not up to lighting standards. Masts and arms are made of steel and show serious corrosion. Lighting efficiency would be greatly improved with switching to LED fixtures and lamps. ROI on installation is expected to be less than 5 years based upon energy savings.

Recommended Solution/Basis of Recommendation

Install new lighting fixtures, circuits, and wiring. Lighting conditions create an unsafe work environment in addition to the degradation of fixtures and wiring throughout the plant.

Measurable Benefits Improved lighting upgrades would allow safe operation procedures and energy savings.

Project Cost Estimate $6,000,000

Project Name Primary and Secondary Non Potable Upgrades

The Primary and Secondary Non-Potable Piping Replacement Project involves the comprehensive replacement of aging and deteriorating non-potable water valves and piping, above and below ground for systems serving both the primary and secondary treatment areas.

Assets Included NPW Valves, NPW 01340-PG

Asset Install Date 1996

Scope of Work

The project will replace existing valves and piping, and install additional valves to provide isolation necessary for repair while allowing other plant processes to remain in operation. This work includes the replacement of new valves, victaulic couplings, strainers, instrumentation, and SCADA upgrades for the non-potable system.

Problem / Opportunity

Poor isolation valves necessitating repairs and causing routine maintenance difficulties. Valves are worn from age and normal operation. Replacement of the valves and piping would allow for repairs and maintenance to be completed more easily, maximizing operation throughout the SBIWTP and eliminating water runoff in emergency scenarios (e.g., line breaks and process failures).

Recommended Solution/Basis of Recommendation

This critical infrastructure upgrade aims to enhance system reliability, improve operational efficiency, and ensure the continued safe distribution of non-potable water throughout the facility.

Measurable Benefits

This upgrade will result in reduced maintenance costs, improved flow characteristics, and increased system longevity. Will allow for process isolation without affecting other critical operations when repairs are necessary.

Project Cost Estimate $4,000,000

Project Name Odor Control Upgrades Project Description Recondition Odor Control Scrubber Systems

Assets Included

SCRUBBER, ORHW 00355-ORSC1 - SCRUBBER, ORPST

00655-ORSC2 - SCRUBBER, TOWER 3, ORUSS 02255-ORSC3 -

SCRUBBER 4, ORSP 03705-ORSC4 - SCRUBBER 5, ORSP

03715-ORSC5

Asset Install Date 1996

Scope of Work The Odor Control Upgrade Project involves the comprehensive rehabilitation and improvement of the existing odor control system.

Problem / Opportunity

This critical project aims to address the calcification of the current media, replace the failing media support system, and upgrade the structural support to accommodate heavier media loads. Normal deposits of calcium from water hardness have caused the media to calcify, requiring it to be removed and replaced. The media support system is also starting to fail, as the media is heavier than the structural support loading design.

Recommended Solution/Basis of Recommendation

Current condition / age (end of expected useful life) / lack of available parts. The upgrades will enhance odor removal efficiency, improve system reliability, and ensure compliance with air quality regulations.

Measurable Benefits The upgrades will enhance odor removal efficiency, improve system reliability, and ensure compliance with air quality regulations.

Project Cost Estimate $7,500,000

Project Name PLC Migration

Project Description

The PLC Migration Project involves upgrading the existing Programmable Logic Controller (PLC) system to a modern, more efficient control system. This project aims to enhance the plant's operational efficiency, reliability, and compliance with current industry standards and regulations.

Assets Included Headworks PLC, PST PLC, GCPS PLC, HPS PLC, BFP PLC, GEN PLC, PEB PLC, PERC PLC, Solids Processing PLC, Lime Stabilization PLC, Plant Control Center PLC, Odor Reduction PLC

Asset Install Date

Scope of Work

Blowers, Secondary Non Pot, Secondary PLC:

- Upgrading PLC’s throughout plant

- Replace all aeration blower PLC’s

- Secondary Non Pot - redundant PLC configuration

- Implement redundancy for secondary PLC

- Redundant network switches

- Non Pot - device level ring configuration

- Replace input/output cards within secondary

- Switchgear PLC replacement migration and have redundancy

- Coordination w/ CAT Hawthorne

- HMI screen integration

- Breaker readout device replacement(s) and integration

- Cathodic protection

Problem/Opportunity

This project focuses on modernizing the plant's control system infrastructure, enhancing operational efficiency and process control, improving system reliability and reducing downtime, facilitating better data management and reporting, ensuring compatibility with current and future plant equipment, and providing a platform for future expansion and upgrades.

Recommended Solution/Basis of Recommendation

The existing PLC infrastructure, which has been in operation for years, is approaching the end of its useful life and is becoming increasingly difficult to maintain due to obsolete components and limited vendor support. This modernization effort will replace outdated PLCs with state-of-the-art control systems, ensuring the plant's continued optimal performance and preparedness for future technological advancements.

Measurable Benefits

The project will replace outdated PLC hardware and software with a state-of-the-art system that offers improved processing power, expanded memory, enhanced communication capabilities, and better integration with other plant systems. This upgrade will result in more precise control of plant operations, improved data collection and analysis, and increased system reliability.

Project Cost Estimate $1,000,000

Project Name Effluent Flow Meter Replacement

The Effluent Flow Meter Replacement Project involves the removal of the existing 48" effluent flow meter and installation of a new, state-of-the-art 48" flow meter.

Assets Included METER, FLOW, MAGNETIC, 48", PLANT EFFLUENT 01506-FLOW-PE

Asset Install Date 1996

Scope of Work

- Planning and Design

- Procurement of new flow meter

- Scheduling temporary bypass for replacement

- Removal of old flow meter

- Installation of new flow meter

- Installing bypass on effluent line

- Calibration and testing

- Integration with SCADA or other monitoring systems

Problem / Opportunity This critical upgrade aims to enhance the accuracy and reliability of effluent flow measurements, ensuring optimal plant performance and regulatory compliance.

Recommended Solution/ Basis of Recommendation

Installing a new flow meter and permanent bypass piping will allow for repair and replacement opportunities without disrupting flow.

Measurable Benefits

The replacement of the existing clamp on effluent flowmeter with a magnetic flowmeter will allow for improved accuracy in effluent flow measurement reporting, better monitoring and control of plant operations, compliance with regulatory and environmental requirements, and potential energy savings with more efficient equipment. Installation of a permanent bypass will allow for maintenance on the effluent meter without the need to install a temporary bypass.

Project Cost Estimate $6,750,000

Project Name MCC Bucket Upgrades

The MCC (Motor Control Center) Bucket Upgrades Project is a comprehensive electrical system improvement initiative focusing on modernizing critical electrical infrastructure for the primary treatment system while ensuring proper protection coordination and safety compliance through detailed electrical studies.

Assets Included Various MCC equipment throughout the facility.

Asset Install Date 1996

Scope of Work

- MCC buckets for primary system

- Ground fault study

- Breaker coordination

Problem / Opportunity Upgrades will modernize and enhance system operations.

Recommended Solution/Basis of Recommendation

This project would increase the system reliability as the aging MCC infrastructure requires modernization. The plant has a need for improved operational reliability as the current equipment is approaching the end of useful life. The project would help the plant meet safety compliance standards by: meeting current electrical codes, ensuring proper protection coordination, implementing modern safety features, and reducing arc flash hazards. This would improve operational efficiency by: improving monitoring capabilities, enhancing maintenance access, providing a better system protection. There will also be risk mitigation by: reducing the risk of electrical failures, enhancing personnel safety, improving equipment protection, and providing better system documentation.

Measurable Benefits Current condition / age (end of expected useful life) / lack of available parts

Project Cost Estimate $1,500,000

Project Name HVAC Upgrades

The HVAC Upgrades Project involves upgrading and modernizing the Heating, Ventilation, and Air Conditioning (HVAC) systems at the

SBIWTP.

Assets Included HVAC upgrades in spaces that currently utilize A/C

Asset Install Date 1996

Scope of Work

- Conduct a comprehensive assessment of existing HVAC systems throughout the plant

- Implement upgrades to HVAC systems in office buildings, Motor Control Center (MCC) buildings, and control panels

Problem / Opportunity The current HVAC infrastructure is outdated and inefficient, exposing existing equipment to excessive heating of the equipment and electrical components.

Recommended Solution/Basis of Recommendation

This project will significantly enhance the working environment for staff and protect vital equipment, contributing to the overall efficiency and effectiveness of the wastewater treatment plant operations.

Measurable Benefits

This project will directly result in improved indoor air quality and comfort for staff in office buildings, enhanced protection and optimal operating conditions for sensitive electrical equipment in MCC buildings, increased energy efficiency and reduced operating costs, extended lifespan of critical plant equipment through better environmental control, and the improved overall functionality and reliability of the wastewater treatment plant.

Project Cost Estimate $2,000,000

2027-2029

Install Date Estimated

Cost

WWTP

Storage Facility

Addition of a storage facility onsite to house equipment, spare parts, materials, etc.

- Addition of storage facility New asset $2,605,000

Interior Condition Assessment and Repairs of USST’s

Condition assessment and corresponding repairs of mechanical equipment inside the USSTs plus possible concrete repairs and structural bracing.

- Interior and exterior coatings

- Piping & Valves

- Instrumentation upgrades

- Concrete repairs

- Struvite removal from feed lines

1996 $3,125,000

Ocean Outfall

- Anti Intrusion Structure Rehab

Assessment of the outfall and the corresponding mechanical elements.

- Replacement of 4 air vacs

- Bubbler system replacement

- Valve replacement

1996 TBD

Bar Screen & Conveyors Replacement

Screening equipment (automatic and manual) at headworks to be upgraded to modern standards.

- Screens and compactors

- Installation

- Engineering/SCADA

- Conveyors

1996 $6,500,000

Canyon Collector Rehabilitation & Upgrades

Upgrades to the canyon collector infrastructure to improve operations and maintenance of the facilities.

- Valving on three gravity collectors

- Expand containment

- Sediment basin upgrades

- 2nd collector box to both

Goat and Hollister

- Drying beds w/ decant capabilities

1996 $12,000,000

Chemical Tank Rehabilitation

Improvements to chemical storage infrastructure, including diesel tanks, to improve site safety and efficiency of chemical use in the Plant. The project includes the

- Rerun poly bulk storage tanks electrical

- Primary polymer addition pumps

- Demolition of ferric pumps

- Polymer tanks

1996 $2,500,000

Install Date

Estimated Cost corresponding electrical work.

- Polymer pumps replacement for solid processing

- Truck loading scales

- Diesel storage tanks (3) and containment area (double tank capacity)

- Containment sump pumps

Security & Fire Suppression Assessment

Assessment and improvements to fire suppression systems to enhance site safety

- Door replacements

- Garage door replacements

- Fire panel upgrade

- Communicate with fire dept

- New heat and smoke detectors

- Strobe lighting

- SCADA server fire suppression upgrades (Heptafluoropropane)

1996 $3,000,000

Onsite Laboratory Upgrades

Upgrade the existing onsite laboratory, to bring the infrastructure and equipment to modern standards.

- Upgrade existing lab infrastructure to protect the lab from dust and other outdoor elements

1996 $1,500,000

Total Estimated Cost ~$32,230,000

2027-2029

Project Name WWTP Storage Facility

The Wastewater Treatment Plant Storage Facility Project involves the design and construction of a new, purpose-built storage facility to house equipment and materials essential for plant operations. This project aims to address current storage inadequacies, enhance operational efficiency, improve safety, and ensure better preservation of valuable assets.

Assets Included No storage is existing (New asset)

Asset Install Date N/A

Scope of Work

- Construction of a secure, weather resistant building

- Implementation of organized storage systems for various equipment and materials

- Installation of proper lighting, ventilation, and climate control systems

- Integration of safety features and hazardous material handling areas

- Development of an inventory management system

Problem / Opportunity

The current lack of adequate storage facilities heightens the risk of inefficient operations, equipment deterioration, inventory problems, increased maintenance costs, space constraints, and safety hazards.

Building a new storage facility presents an opportunity to address these issues.

Recommended Solution/Basis of Recommendation

The new facility will centralize storage, project assets from environmental damage, improve inventory control, and create a safer working environment. The project is expected to result in long-term cost-savings, increased operational efficiency, and better compliance with safety and environmental regulations.

Project Cost Estimate $2,605,000

Project Name Interior Condition Assessment and Repairs on USST 1&2

Project Description

The project involves conducting a comprehensive interior condition assessment of the Unstabilized Sludge Storage Tanks (USSTs).

Following the assessment, necessary repairs will be identified and executed to ensure the continued efficient operation and longevity of these critical components of the wastewater treatment system.

Assets Included

TANK, SLUDGE, UNSTABILIZED (USST) - USST1, USST2

PIPING, MIXING, SLUDGE, USST SMP-PG

VALVES, MIXING, SLUDGE, USST SMP-VG

PUMP, MIXING, SLUDGE, USST - SMP1A, 1B, 1C

PUMP, MIXING, SLUDGE, USST - SMP2A, 2B, 2C

Asset Install Date 1996

Scope of Work

- Assessment of the existing infrastructure.

- Replacement of piping

- Replacement of valves

- Replacement of pumps

- Reconditioning and coating

Problem / Opportunity

The tanks currently experience poor valve isolation for cleaning and operational needs. The condition of the piping is poor and has extensive struvite build up that needs to be removed. The interior coatings of the pipe and tank walls have worn down from the excess material and normal wear introduced into the tank. Tank inspections show the coating on interior walls and piping is in poor condition. Addressing these issues would provide adequate isolation as needed, proper conveyance of material through piping and safeguard the USST tanks from further deterioration.

Recommended Solution/Basis of Recommendation

Replace valves, pumps, and piping. Rehabilitate and recoat tanks.

Deteriorating pipe and valve conditions. Initial visual inspection of interior condition of USST tank.

Measurable Benefits

The project will provide an extended lifespan of the piping, valves, and tanks, improved structural integrity, enhanced operational efficiency, reduced maintenance costs, increased treatment capacity, decreased chemical usage, improved regulatory compliance, and increased system reliability in the face of current flows and sediment entering the plant.

Project Cost Estimate $3,125,000

Project Name South Bay Land Outfall - Anti-Intrusion Structure Assessment

Project Description

The SBLO (South Bay Land Outfall) / Anti-Intrusion Structure Assessment project involves a comprehensive evaluation of the existing ocean outfall system and its associated anti-intrusion structure at

SBIWTP.

Assets Included

STRUCTURE, ANTI-INTRUSION 01541-BLDG-AIS

DISK, RUPTURE, 42", STRUCTURE, ANTI-INTRUSION

01541-RUPTURE_DISK

GATE, FLAP, 36", STRUCTURE, ANTI-INTRUSION 01541-FGATE-AIS

PANEL, BUBBLER, STRUCTURE, ANTI-INTRUSION

01541-AIS-BUBBLER

VALVE, AIR, COMB., STRUCTURE, ANTI-INTRUSION - SAV-AIS-1 & 2

Asset Install Date 1996

Scope of Work

- Assessment of the existing infrastructure

- Replacement of 4 air vacs

- bubbler system replacement

- valve replacement 12ME

Problem / Opportunity Assess existing infrastructure and address any deficiencies it may have in order to maintain continuous operation of the facility, ensure compliance and environmental protection, as well as public health.

Recommended Solution/Basis of Recommendation

This critical assessment aims to determine the current condition, performance, and integrity of the outfall system, identify any potential issues or risks, and provide recommendations for maintenance, repairs, or upgrades

Measurable Benefits Risk mitigation associated with the existing infrastructure.

Project Cost Estimate TBD

Project Name Bar Screen and Conveyor Replacement

The Bar Screen and Conveyor Replacement Project involves the removal of the existing bar screen system and installation of a new, more efficient screening system at the plant’s Headworks. It also involves the rehabilitation of the conveyor system for the solids processing system.

Assets Included SCREEN, BAR, MECHANICAL, HW -SCN1, SCN2, SCN3

Asset Install Date 1996

Scope of Work

- Screens and compactors

- Installation

- Design and engineering

Problem / Opportunity

Barscreens and conveyance systems are excessively worn from the lack of source control at the JB-1 structure. Without source control at the gate, large debris and aggregate continuously break and wear equipment causing damage and disruption to plant processes. The project will replace outdated screening equipment with a modern, automated system better able to handle the plant's current and projected future flows and the associated rags, debris and sediment.

This upgrade will result in improved capture of screenings, reduced maintenance requirements, and increased operational reliability.

Recommended Solution/Basis of Recommendation

Replacement of barscreens, compactors and conveyance systems from abnormal flow and debris, and lack of source control.

Measurable Benefits This critical upgrade aims to improve the removal of large debris and inorganic materials from the incoming wastewater stream, protecting downstream equipment and enhancing overall treatment efficiency.

Project Cost Estimate $6,500,000

Project Name Canyon and Collector Rehabilitation Upgrades

Wastewater entering the system through the Canyon Collectors increasingly contains high amounts of solids from Mexico, which has made cleaning the collectors very difficult and has caused damage to the downstream equipment in the pump stations. Therefore, it is recommended to redesign the Canyon collectors to allow effective and efficient cleaning while protecting the equipment downstream.

Assets Included All Canyon Collectors

Asset Install Date 1996

Scope of Work

Redesign of the collector canyons with the goal of facilitating cleaning, being able to isolate and manage flows and protecting downstream equipment. Ideas may include, but are not limited to:

- Valving and piping on the gravity collectors

- Expand and modify containment for isolation and better cleaning

- Sediment basin upgrades

- 2nd collector box to both Goat and Hollister

- Drying beds w/ decant capabilities

Problem / Opportunity

The design of almost 30 years ago is no longer effective for the current conditions, especially due to the amount of sediment, trash, solids and unregulated, increased flow of the raw sewage and storm water. The main opportunities are to protect the equipment downstream and to upgrade the collectors’ capacity through expansion of the existing containment and additional collector boxes.

Recommended Solution/Basis of Recommendation

It is recommended to select for the delivery method a progressive design-built project, in which different alternatives are presented, and in conjunction with operations, the best option is selected, with the idea of protecting the downstream equipment and facilitating the cleaning of the collectors. Expanding collectors and sediment boxes will allow the collection facilities to accommodate the increase in flows.

Measurable Benefits

Cleaning and servicing of the collectors will be more effective, so there will be savings in personnel, use of equipment, etc.

Improvement times will be shorter, which will facilitate permit compliance.

Downstream equipment will suffer less wear and tear, so there will be less downtime, fewer failures and corrections, and less exposure to catastrophic failures that lead to spills.

Project Cost Estimate $12,000,000

Project Name Chemical Tank Rehabilitation

The Chemical Tank Rehabilitation Project is a comprehensive infrastructure upgrade initiative focused on modernizing and improving the chemical storage and delivery systems at the wastewater treatment plant.

Assets Included Chemical Facilities

Asset Install Date 1996

Scope of Work

Polymer System Upgrades:

- Installation of new poly bulk storage tanks with modern safety features

- Replacement of primary polymer addition pumps

- New polymer tanks and pumps for solids processing

- Electrical system reconfigurations for improved reliability

Ferric System Modifications:

- Demolition of existing ferric pumps

- Implementation of updated chemical delivery systems

Chemical Management Infrastructure:

- Installation of new truck loading scales for accurate chemical deliveries

- Upgrade of three diesel storage tanks with modern containment systems

- Construction of enhanced containment area

- Installation of new containment sump pumps

Problem / Opportunity

The existing chemical storage systems are old, unreliable and not very efficient, a situation that has been exacerbated by the high flows received at the plant, which has required an increased consumption of chemicals, well above what was projected by the design capacity of the facility.

Recommended Solution/Basis of Recommendation

Infrastructure Reliability:

- Aging chemical storage and delivery systems require modernization

- Current infrastructure approaching end of useful life

- Need for improved operational reliability and safety

Regulatory Compliance:

- Meeting current environmental regulations for chemical storage

- Ensuring proper containment systems for hazardous materials

- Compliance with updated safety standards

Operational Efficiency:

- Improved chemical delivery and management systems

- Enhanced monitoring and control capabilities

- Better inventory management through accurate scaling

Risk Mitigation:

- Reduced risk of chemical spills or leaks

- Enhanced containment capabilities

- Improved emergency response systems

Measurable Benefits

Operational Improvements:

- Reduction in chemical handling time

- Improvement in dosing accuracy

- Reduction in maintenance requirements

- Increase in system reliability

Safety Enhancements:

- Compliance with current containment regulations

- Reduction in potential spill risks

- Improvement in chemical handling safety

Cost Savings:

- Reduction in chemical waste

- Improvement in chemical usage efficiency

- Decrease in maintenance costs

- Reduction in emergency repair needs

Environmental Benefits:

- Improvement in spill prevention capability

- Containment capacity for worst-case scenarios

- Reduction in environmental incident risk

Process Control:

- Improvement in dosing accuracy

- Better inventory management

- Reduction in chemical delivery issues

Project Cost Estimate $3,500,000

Project Name Security and Fire Suppression Assessment

The Security and Fire Suppression Assessment Project is a comprehensive safety upgrade initiative focusing on modernizing fire detection, suppression, and security systems.

Assets Included Various locations to include the addition of modern equipment

Asset Install Date 1996

Scope of Work

Physical Security Upgrades:

Replacement of aging garage doors to enhance facility security:

- Implementation of modern access control systems Fire Detection System Modernization:

- Installation of new heat and smoke detectors throughout the facility

- Integration of advanced strobe lighting systems for visual alerts

- Upgrade of the main fire control panel with current technology

Emergency Response Enhancement:

- Implementation of improved communication protocols with local fire department

- Integration of emergency response systems with facility operations Critical Infrastructure Protection:

- Installation of specialized Heptafluoropropane fire suppression system for SCADA server rooms

- Protection of vital operational control systems and data

Problem / Opportunity The existing equipment is outdated and unreliable. It is essential to upgrade and install new assets to maximize safety and security and to allow continuous operations.

Recommended Solution/Basis of Recommendation

Risk Management:

- Current systems may be outdated or insufficient for modern safety standards

- Critical SCADA infrastructure requires specialized protection

- Need for enhanced emergency response capabilities

Regulatory Compliance:

- Meeting updated fire safety codes and regulations

- Ensuring alignment with insurance requirements

- Maintaining compliance with industrial safety standards

Asset Protection:

- Safeguarding critical operational infrastructure

- Protecting valuable equipment and facilities

- Preserving essential operational data and control systems

Personnel Safety:

- Improving emergency detection and response times

- Enhancing evacuation capabilities

- Ensuring proper protection of staff during incidents

Measurable Benefits

Safety Improvements:

- Reduction in emergency response time

- Coverage of critical areas with modern detection systems

- Improvement in early detection capability

Asset Protection:

- Protection rate for critical SCADA infrastructure

- Reduction in potential damage from fire incidents

- Improvement in security breach prevention

Operational Benefits:

- Reduction in insurance premiums

- Reduction in false alarm incidents

- Improvement in emergency response coordination

Long-term Value:

- Extended life expectancy of critical systems

- Reduced maintenance costs through modern equipment

- Enhanced facility resilience and business continuity

Compliance and Documentation:

- Alignment with current fire safety regulations

- Improved documentation and tracking of safety systems

- Enhanced audit trail for safety and security incidents

Project Cost Estimate $3,000,000

Project Name Onsite Laboratory Upgrades

The Laboratory Infrastructure Upgrade Project aims to enhance the existing laboratory facilities at the wastewater treatment plant by implementing comprehensive protective measures against environmental contaminants, particularly dust and outdoor elements.

Assets Included Existing laboratory

Asset Install Date 1996

Scope of Work

- Installation of advanced air filtration systems

- Upgrading sealing mechanisms for doors and windows

- Implementation of positive pressure ventilation systems

- Modernization of workspace containment solutions

- Enhancement of sample storage and handling areas

Problem / Opportunity

This reduces the risk of sample contamination, which leads to fewer re-runs on tests. The new lab provides better environmental control which leads to more reliable instrument performance and improved working conditions for laboratory personnel.

Recommended Solution/Basis of Recommendation

Installation of a new laboratory with state of the art equipment will allow for a more workable space and will reduce the risk of contaminating samples.

Measurable Benefits The benefits of this project include increased laboratory quality assurance, regulatory compliance, and operational efficiency.

Project Cost Estimate $1,500,000

1.INTRODUCTION

2.PROPOSED PROJECTS INFORMATION

3.PROJECTS BY YEAR