WSP Water Solutions

WATER STATEMENT OF QUALIFICATIONS

Statement of Qualifications | Water

WSP IN THE U.S. Our teams are well positioned to deliver successful projects, wherever our clients need us.

Our teams are: ■ Courageous collaborators who challenge convention and embrace complexity. ■ Intelligent leaders across multiple technical fields. ■ Human advocates who listen deeply, act ethically, and design with empathy to create lasting impacts. ■ Future-minded visionaries delivering sustainable work that creates a more equitable future.

Water is the foundation of survival. We rely on water to nourish our bodies, grow our food and power our cities. Through our Future Ready ® approach, we form deep client partnerships that consistently deliver science-based excellence and community focused outcomes, one place and one project at a time. With more than 27,000 professionals across 400 offices nationwide, WSP is uniquely positioned to deliver global expertise with local precision. Whether we’re identifying geophysical groundwater characteristics in the Midwest, or developing climate change strategies for major metropolitan areas, we scale our solutions to meet your precise needs.

BY THE NUMBERS Every day across our firm, colleagues are delivering projects and leading initiatives that make a significant difference for our clients and the communities in which we live and work.” — Joe Sczurko | US Region President POSITIVE IMPACTS, A

27k US EMPLOYEES 400 OFFICES

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WSP in the U.S. 

MOUNTAIN PACIFIC 74 OFFICES MIDWEST 81 OFFICES ACHIEVED TOGETHER NORTHEAST 50 OFFICES

MID-ATLANTIC 68 OFFICES

CALIFORNIA 47 OFFICES

SOUTHEAST 80 OFFICES

TEXAS & LOUISIANA 32 OFFICES

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Statement of Qualifications | Water

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WSP in the U.S. 

WATER It’s not just what fills our cups. It fuels our future.

Water is the foundation of survival—we rely on water to nourish our bodies, grow our food and power our cities. At WSP, we honor that power with bold ideas and sustainable solutions. Because when we protect water, we protect life itself. The world’s thirst is growing rapidly. Water sustains life, shapes our environments and drives the economy. Today, this essential resource is under pressure. Increasing populations, aging infrastructure and extreme weather events are straining outdated water systems across the globe. Considering these factors, the call for sustainable water management has never been so clear. And WSP listens. We respond with forward-thinking solutions that protect water and the people who depend on it. We preserve water resources by helping clients optimize water use and reuse. Our outcomes don’t just meet expectations—we redefine them. WSP delivers groundbreaking water solutions that set new standards for what’s possible, supporting a sustainable future for all. WSP enhances water

security and resilience to address the challenges faced by our clients and communities. This work is collaborative, requiring alignment across government agencies, public utilities and private companies. Our team of water professionals boasts deep expertise in hydrology and water sustainability across various sectors and regions. We understand the broader implications of disrupted access to clean water on communities. With a track record of innovative solutions, we aim for socially equitable, environmentally sustainable and economically beneficial outcomes. Our expertise spans the water market sectors, including drinking water and wastewater, water resources, stormwater and coastal engineering services. Every solution we deliver is a step toward a more sustainable, water-wise future—for the people and the planet that depend on it.

BY THE NUMBERS 1000 US WATER EMPLOYEES

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Statement of Qualifications | Water

CONTENTS

8

DRINKING WATER AND WASTEWATER

10 12 14 16 18 20 22 26 28 30 32 34 36 40 42 44 46 48

Asset Management

Water Supply, Dams, Reuse and Storage

Drinking Water Distribution Wastewater Conveyance Drinking Water Treatment Wastewater Treatment

Industrial Water and Wastewater Treatment

24

WATER RESOURCES

Flood Protection

Ecosystem Analysis and Restoration Flood Risk and Inundation Mapping

Hazard Mitigation Services

Hydrologic and Hydraulic Modeling Watershed Modeling and Analysis

38

STORMWATER

Planning

Quality and Compliance

System Design

System Modeling and Analysis

Transportation

50

COASTAL

52 54 56

Coastal Flood Protection

Costal Restoration

Coastal Modeling and Analysis

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WSP in the U.S. 

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Statement of Qualifications | Water

/ DRINKING WATER A

Capacity limitations. Aging infrastructure. Water scarcity. The world we live in is constantly evolving. With increased urbanization comes increased thirst—and increased stress on conventional water and wastewater systems. Water supply shortages, whether from depleted aquifers, changing surface water or prolonged droughts, are driving us to find new reliable sources. Safeguarding water access for all means designing equitable, resilient and sustainable systems that can withstand climate pressures and protect what matters. Water quality challenges don’t just appear at the tap—they are prevalent downstream in our wastewater. Whether tackling capacity issues, improving surface water quality or simply upgrading dated infrastructure, these solutions are costly at a time when funding is scarce. Public agencies, owners and operators urgently need long-term solutions and new strategies to pay for them. WSP is a leader in delivering multidisciplinary drinking water and wastewater engineering services, from some of the world’s largest conveyance tunnels to state-of-the-art desalination and advanced treatment facilities. We bring global experience to the implementation of advanced pre-treatment, membrane and biosolids technologies. WSP keeps water flowing through the following services:

■ Asset management and digital enablement. ■ Water supply, dams, reuse and storage. ■ Drinking water and wastewater conveyance. ■ Drinking water and wastewater treatment. ■ Industrial wastewater treatment.

Through the integration of physical 3-D models, Smart P&IDs and BIM, our team supports efficient design, construction sequencing and long-term asset management. We pride ourselves on being at the forefront of emerging technologies, from arsenic and uranium removal to biological nitrate reduction and water reuse strategies. Our water experts reimagine how to use every drop to strengthen communities and deliver forward-thinking solutions that secure the future of water. At WSP, we don’t just solve today’s water challenges—we reshape tomorrow’s resilience.

WATER AND WASTEW Page 8

WSP in the U.S. 

AND WASTEWATER /

WATER / DRINKING W

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Statement of Qualifications | Water

ASSET MANAGEMENT The right work, at the right time, for the right cost.

Smart decisions start with smart data. For water systems, this means knowing what to fix, when to fix it, why we’re fixing it and how the fix will impact tomorrow’s challenges. That’s why WSP takes a strategic, data-driven approach to asset management and digital enablement. These services are built on deep expertise across water, wastewater and stormwater sectors— enabling us to forecast needs with precision, optimize investments and maximize asset longevity. WSP tackles asset management by integrating capital planning, operations and maintenance tasks, long-term financial planning and the implementation of advanced technology. Our Asset Management Capability Assessment Model assesses an organization’s maturity and charts a clear path toward improvement. Whether it’s updating processes or utilizing smart technologies, we help clients turn complexity into clarity.

But how does WSP help clients approach asset management challenges in the water industry, specifically? Simply, it’s the people. Our team is full of experts, authors and leaders who’ve shaped international standards, such as International Standard for Asset Management Systems and ISO 55001:2014. We work side-by-side with clients to analyze important asset data—their condition, location and real value—in order to make smarter, more cost-effective decisions. WSP offers our services at every stage of asset management improvement, including: ■ Asset rehabilitation, repair and replacement. ■ Unravelling real-world challenges. ■ Assessment and improvement of services to be more efficient and economic. ■ Providing adapted tariff structures.

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PROJECT ELEMENTS

CASE STUDY

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Asset Management 

Asset Management Advisory and Capital Improvement Program Support Washington Suburban Sanitary Commission (WSSC) | Laurel, Maryland ■ Asset management support ■ Infrastructure funding and investment requirements ■ Operations and maintenance WSP has supported WSSC across asset management, capital improvement program (CIP) planning, project controls and program management. In 2018, our team reviewed WSSC’s asset management program, emphasizing data and adaptability to evolving operational conditions. We supported the Enterprise Performance Management Framework by integrating climate change considerations, modeling asset performance for investment prioritization, and developing a rating system incorporating functionality, financial efficiency and resiliency. The project team updated the CIP Prioritization Framework to enhance project scoring, integrate enterprise risk, improve GIS-based customer impact analysis, and develop metrics for lifecycle cost efficiency and regulatory compliance. Alongside core wastewater projects, we prioritized support services. Additionally, we delivered over 51 task orders, including staff augmentation, Primavera P6 master scheduling, project management manual development, and design/ construction services for Fort Washington Estates and Olney Tank. We also trained project managers in best practices and scheduling.

Consent Decree Program Management Services and Asset Management Implementation City of Baltimore Department of Public Works | Baltimore, Maryland ■ Improvement of wastewater infrastructure ■ Established the city’s Office of Asset Management ■ Optimization of Captial Improvement Program schedules As program manager for Baltimore County’s $1-billion wastewater Consent Decree program, WSP implemented asset management practices to support long-term infrastructure planning and compliance. Our team developed an asset management framework for sewer systems—including gravity sewers, force mains, pump stations and low-pressure networks—using data from Cityworks CMMS, GIS, InfoWorks Integrated Catchment Modeling and CCTV assessments. Risk models incorporated likelihood of failure and triple bottom line based consequence criteria to guide planning. We applied this framework to metallic water distribution pipes (about 16-inch diameter) to predict break locations and optimize maintenance. The infraPLAN platform cleaned break data and forecasted future failures. Our team evaluated predictive decision support system (DSS) tools for estimating service life and prioritizing resources. A risk scoring system ranked assets and guided investments. WSP also created interactive dashboards, tailored stakeholder reports, and developed standard operating procedures (SOPs) for proactive sewer cleaning.

Lead and Copper Rule Revision Technical Assistance Program Project Colorado Department of Public Health and Environment (CDPHE) | Denver, Colorado ■ Service line inventories and replacement plans for 300+ water systems ■ Creation of workflows and visualization systems ■ Technical training and public outreach The CDPHE required assistance in programmatic oversight to help approximately 300 small water systems comply with Lead and Copper Rule Revisions. Many of these systems lacked the capacity to meet requirements, particularly around service line inventories and replacement planning. To address this, WSP developed innovative workflows, data visualization tools and streamlined processes to simplify compliance for systems serving populations under 15,000. We supported asset management by helping systems identify and plan for replacing lead or unknown service line materials. Where verification was not possible, WSP conducted field investigations such as potholing. To enhance coordination, we implemented real-time data tools and procedures. Public outreach was key, with WSP creating tailored communication materials including surveys, door hangers, and social media content to promote transparency and engagement. Additionally, WSP developed SOPs for proactive sewer cleaning and evaluated DSS tools to support predictive analytics, risk modeling and resource prioritization.

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Statement of Qualifications | Water

WATER SUPPLY, DAMS, REUSE AND STORAGE One resource. Four solutions. Immeasurable impact.

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Managing water in a responsible manner is one of the most important challenges of our time. At WSP, we approach water management with environmental respect and brilliant thinking, recognizing that supply, reuse, storage and dam infrastructure are interconnected. Through maintaining clean water supplies, repurposing wastewater, and designing resilient dams and storage systems, our work protects water and the environment it exists within. Water Supply: As urban populations grow and existing infrastructure ages, the necessity for safe water sources increases. WSP assists with all aspects of water supply and storage, providing water research, evaluations and economic design of supply networks. Dams: Our dam specialists guide clients through the full lifecycle: from feasibility and design, to inspections, remediation and

decommissioning. As experts in dams regulated by the Federal Energy Regulatory Commission, we support safety, regulatory compliance and long-term performance. Reuse: Our reuse strategies, such as greywater recycling, rainwater harvesting and reclaimed water systems, aim to maximize water’s potential. We tailor water quality to its intended use as opposed to treating it all to the same standards, which saves money and resources. Storage: From underground hydrogen caverns to wastewater reuse tanks, our storage solutions boost resilience and integrate renewable energy. By integrating innovative storage opportunities, we support flood control and ecosystem health.

PROJECT ELEMENTS

CASE STUDY

Top Left: Valenciano Dam, Bottom Left: Niskey Lake, Right: Valenciano Dam

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Water Supply, Dams, Reuse and Storage 

Puerto Rico East Central Water Supply – Valenciano Dam Puerto Rico Aqueduct and Sewer Authority (PRASA) | Juncos, Puerto Rico ■ Large, high-hazard roller compacted concrete (RCC) gravity dam design ■ Seismic structural analysis and design ■ Comprehensive water system integration This project aims to address the need for a reliable drinking water supply in the east-central Puerto Rico with the Valenciano Dam, a proposed dam that spans the Río Valenciano. The dam will form the new Valenciano Reservoir to significantly increase water storage, providing resiliency against droughts. The 125-foot-tall, 1,1000-foot-long structure features a gated spillway and an innovative sediment sluice tower to provide sustainable reservoir sedimentation operations. Our team performed design investigations, including sedimentation modeling, computational fluid dynamics hydraulic modeling, hydraulic physical modeling, seismicity analysis, seismic stability modeling and an extensive RCC testing program. Other design features for the dam include the downstream energy dissipator, river transitions, a river bypass/low level outlet structure, multi-level raw water intake tower, operations and control building, gate operations supervisory control and data acquisition system, and an access bridge across the crest of the dam.

Russell Creek Reservoir – Etowah Dam

Niskey Lake Dam Rehabilitation

Etowah Water & Sewer Authority (EWSA) | Dawson County, Georgia

Ruby Collins Construction | Atlanta, Georgia

■ Strategic water supply upgrades ■ New earthen fill pumped storage reservoir ■ Environmental impact statement

■ Design and permitting services ■ Design-Build dam rehabilitation ■ Increased dam resilience

Northern Georgia’s rapid population and infrastructure growth created an urgent need for improved water supply sustainability. However, environmental protections for endangered species in the Etowah River limited new construction in the area. To address this challenge, WSP developed a new offline pumped storage water supply reservoir, the Russell Creek Reservoir. WSP designed a 110-foot-tall earthen dam, creating a 1.4-billion-gallon reservoir to secure long-term water supply. The system included a river pump station, 3-mile raw water pipeline and upgraded treatment plant, delivering up to 17.3 million gallons per day. This reservoir is designed to draw flows from the Etowah River during times of excess flow, with water returned to the river during low flow and drought conditions. These operations will provide long-term sustainability to the drinking water supply yield and adequate environmental flow conditions for protection of the Etowah Darter and Amber Darter endangered species.

WSP was the lead designer for the design-build rehabilitation of the Niskey Lake Dam, a 35-foot-high earthen embankment dam originally constructed in 1929. The team provide full design and permitting services for upgrades to the dam embankment and spillway. The dam was reclassified as a High Hazard Structure by the Georgia Department of Natural Resources Safe Dams Program, triggering the need for significant upgrades to meet modern safety and regulatory standards. The rehabilitation design included a 66-foot-wide concrete overtopping spillway constructed through six large culverts, allowing a residential street to safely pass over the dam crest. This design not only enhanced spillway capacity, but also improves community access and resilience. WSP coordinated permitting requirements with the Georgia Safe Dams Program, Georgia Environmental Protection Division and the US Army Corps of Engineers. The project addressed critical safety concerns while preserving the dam’s functionality and integrating it into the surrounding neighborhood.

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Statement of Qualifications | Water

DRINKING WATER DISTRIBUTION Safe water from source to tap. Drinking water systems are the unseen backbone of our communities. They deliver safe, reliable water for homes, businesses and critical fire protection during emergencies. Recognized by Homeland Security and the American Water Works Association as among the nation’s most vital infrastructure, these systems are essential to public health and safety. Yet as cities grow, the challenge shifts from simply sourcing water to ensuring safe distribution to every household—even in the face of aging pipelines and rising demand. WSP leads the design of transmission mains and distribution networks across the US, applying innovative strategies that safeguard water access and strengthen resilience for the future. WSP’s expertise in drinking water distribution encompasses the design, analysis and implementation of robust systems tailored to local needs. We work with municipalities

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to develop transmission pipelines, storage reservoirs, pump stations, and pressure zones that optimize flow and minimize energy use. Our solutions are grounded in hydraulic modeling, water quality assessments, and asset management strategies that extend system life and reduce operational costs. WSP’s cutting edge projects include developing an award winning earthquake resilient water main in Seattle to an eight foot diameter raw water transmission main in Houston. We apply cutting-edge technologies to identify vulnerabilities and improve system performance before construction begins. Through our smart, comprehensive services such as surge analysis, leak detection and smart metering, our water distribution networks are both efficient and adaptable to what the future holds.

PROJECT ELEMENTS

CASE STUDY

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Drinking Water Distribution 

Metropolitan Water Tunnel Program – Final Design Engineering Services Massachusetts Water Resources Authority (MWRA) | Massachusetts ■ Design of two major water supply tunnels ■ Geotechnical investigations ■ Permitting and environmental compliance WSP is providing comprehensive final design engineering services for the MWRA’s Metropolitan Water Tunnel Program, which is an initiative to enhance the reliability and resilience of the water system for over 3 million residents in 53 communities. The program involves the design of two major water supply tunnels, totaling approximately 15 miles of 10-ft diameter deep rock potable water pressure tunnels located 200 to 500 feet below ground. It also includes shafts, valve chambers, water main pipelines and appurtenances. WSP’s scope includes detailed geotechnical investigations, hydraulic and structural design, and preparation of bid-ready documents. The team also manages permitting, environmental compliance and stakeholder coordination. This effort addresses aging infrastructure and mitigates risk by creating alternative conveyance paths for treated drinking water. Through leveraging advanced modeling and innovative design practices, WSP is helping MWRA safeguard water quality and service continuity for the future.

Water Main and Water Meter Design Washington Suburban Sanitary Commission Pipe Design Division | Prince George’s and Montgomery Counties, Maryland

Delta Conveyance Project California Department of Water Resources | California

■ Water main design ■ 20 miles of rehabilitation, relocation and new installation ■ 10 water metering facilities

■ Modernizing California’s water infrastructure ■ Integrated engineering and environmental design ■ Sustainable material reuse strategy This project is a transformative water infrastructure initiative led by the California Department of Water Resources to modernize the State Water Project and secure long-term water reliability for over 27 million residents and 750,000 acres of farmland. The project involves constructing a 45-mile, 36-foot diameter tunnel beneath the Sacramento-San Joaquin Delta to convey up to 6,000 cubic feet per second of drinking water from the northern Delta to existing pumping facilities in the south. WSP serves as a key member of the engineering design management team, leading tunnel design and logistics coordination. Responsibilities include hydraulic structure design, levee stability assessments, bridge feasibility studies and conceptual planning for access routes via truck, barge and rail. WSP also supports environmental documentation and permitting efforts. A critical component of the project is the sampling and analysis plan for reusable tunnel material, which evaluates the reuse of tunnel excavated material for levee maintenance, habitat restoration and delta island fill. Hydraulic modeling and surge analysis ensure robust tunnel and drop shaft performance under emergency conditions.

WSP was selected by the Washington Suburban Sanitary Commission Pipe Design Division for a multi-year Indefinite Quantities Contract to support water system upgrades across Prince George’s and Montgomery Counties, Maryland. WSP evaluated and designed a new water distribution system and other water meter improvements. Under this contract, WSP has delivered 13 task orders covering approximately 20 miles of new, replacement, and relocated water distribution mains ranging from 4 to 16 inches in diameter, along with the design of 10 water metering facilities. The project involved designing and preparing contract documents (plans and specifications) for bidding and construction to remove and replace existing water supply mains, retrofit and connect them to the existing system, and transfer all services to the new mains. It also included design services such as utility locating, surveying, geotechnical investigation and corrosion analysis. Project areas included suburban, residential, and urban commercial, and include rail crossings and interfaces with state highways.

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Statement of Qualifications | Water

WASTEWATER CONVEYANCE Moving waste, protecting the environment and public health.

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As communities grow, the infrastructure supporting them ages. Infiltration and inflow reduce the capacity of aging pipes, while population growth increases demand. Reliable wastewater conveyance is essential to the health and prosperity of our communities. Reducing wastewater overflows into waterways and aquifers not only protects the environment, but also facilitates public health and safety. Modernizing wastewater conveyance is needed for the overall prosperity and progress of our communities. But how do we make that happen? The answer lies in smart, effective conveyance systems. The Environmental Protection Agency estimates the US has over 500,000 miles of publicly owned sanitary sewers, with a similar expanse of privately-owned sewer systems. Wastewater conveyance systems are the backbone of modern sanitation, transporting collected flows from residential, commercial and industrial sources to treatment facilities.

These systems are essential for protecting public health, preserving natural waterways and enabling sustainable urban growth. WSP possesses expertise in all major components of the conveyance system, including combined and sanitary sewer overflow reduction, sewer investigation, rehabilitation, sewer capacity modeling, transmission pipeline systems, retention, pump stations, combined sewage overflow tunnels, gravity interceptors, forcemains and outfall structures. Our team integrates advanced technologies, such as computational fluid dynamics modeling, to anticipate challenges before construction begins. We also specialize in geotechnical investigations, ground improvement, tunneling design and seismic engineering to bolster system resilience in the face of natural disasters. By focusing on efficiency and reliability, WSP’s wastewater conveyance solutions help communities safeguard their water resources while preparing for future growth.

PROJECT ELEMENTS

CASE STUDY

Bottom Left: Bay Park Conveyance

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Wastewater Conveyance 

Carolina Trunk Sewer Tunnel Rehabilitation City of Portland Bureau of Environmental Services (BES) | Portland, Oregon ■ Rehabilitation of stormwater and combined sewer pipelines ■ Hydraulic modeling and capacity upgrades ■ Abandonment of existing trunk infrastructure The Carolina Trunk Rehabilitation Project is a critical wastewater conveyance initiative led by the City of Portland’s Bureau of Environmental Services (BES) to upgrade aging sewer infrastructure and prevent tunnel collapse in a dense urban corridor. The project focuses on rehabilitating stormwater and combined sewer pipelines, improving hydraulic capacity and abandoning trenchless and open-cut methods beneath interstates, requiring careful coordination to minimize public disruption. WSP serves as the prime design consultant, delivering design phase documentation, special provisions, cost estimates and design reports aligned with BES standards. Our team assists the City with infrastructure planning through infrastructure site reviews, location of planned tunnel access shafts, and strategized risk mitigation to address unknown underground conditions and maintain public mobility. outdated trunk infrastructure. Construction work includes

Bay Park Conveyance Nassau County Department of Public Works | Long Island, New York

Lower Meramec Tunnel Combined Sewage Overflow and Construction Services Metropolitan St. Louis Sewer District | St. Louis, Missouri ■ Critical infrastructure upgrade ■ Geotechnical investigations and hydraulic modeling ■ Stakeholder collaboration The Lower Meramec Tunnel (LMT), Missouri’s largest State Revolving Fund project, is a critical part of the Metropolitan St. Louis Sewer District’s 28-year Project Clear program. Spanning 7 miles with a 12-foot diameter, the tunnel houses an 8-foot conveyance pipe to improve water quality in the Meramec River watershed by intercepting flows and reducing reliance on other facilities. WSP led design and provided construction-phase engineering, addressing challenges like groundwater inflow, hazardous gas and karst geology. The tunnel, built entirely in rock, required integration with Phase I infrastructure and connecting sewers. WSP performed deep geotechnical investigations, geophysical studies, and optimized drop shaft and ventilation designs to mitigate environmental impacts. Hydraulic modeling using XPSWMM supported sizing and emergency planning. Collaboration with stakeholders ensured solutions for urban shaft construction and environmental concerns.

■ Repurposing historic infrastructure ■ Use of trenchless technology to minimize disruptions ■ Addressing water quality violations

The New York Department of Environmental Conservation and Nassau County entered into an administrative order that addressed water quality violations caused by the Bay Park Sewage Treatment Plant (BPSTP). Under this order, a feasibility study was conducted to eliminate the existing outfall to Reynolds Channel. A new ocean outfall was deemed cost-prohibitive, prompting an evaluation of the Sunrise Highway Drinking Water Aqueduct for effluent conveyance. Originally constructed in 1909, the aqueduct includes 83,500 feet of 72 inch Lock-Bar steel pipe. A structural assessment confirmed that the aqueduct was viable to repurpose and still comply with American Water Works Association M28 Class IV standards. Rehabilitation includes approximately 38,000 feet of aqueduct, using segmented sliplining with 60-inch fiberglass reinforced polymer mortar or cement mortar lined steel pipe. To minimize public disruption, trenchless technologies are employed, including 10,664 feet of 72-inch microtunneling from BPSTP to Sunrise Highway, and 8,307 feet to the Cedar Creek Water Pollution Control Plant (CCWPCP). The goal of this conveyance solution is to make cost-effective updates by leveraging existing infrastructure to meet evolving water quality compliance requirements.

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Statement of Qualifications | Water

DRINKING WATER TREATMENT Protecting the water we depend on.

Safe drinking water is essential to public health and a thriving community. As global demand rises and climate pressures reduce conventional supply, communities face increasing challenges in securing reliable, high-quality water. From direct potable reuse and desalination to more conventional treatment methods like sand filtration, WSP meets these challenges head-on, delivering innovative water treatment solutions that hydrate our communities safely and efficiently. WSP’s expertise in civil, structural, mechanical, electrical, process and automation engineering makes us flexible. Drawing from this knowledge, we can confidently create a wide range of right sized solutions, from early planning through commissioning and operations. Our team

designs and implements treatment systems that meet stringent regulatory standards while optimizing performance and cost. We work with clients to develop tailored solutions using conventional filtration, advanced oxidation, desalination and water reuse technologies. To determine the best water treatment strategies, we actively engage with emerging technologies. This way, our clients receive the most sustainable and efficient treatment options available. Whether addressing contamination, expanding capacity or improving resilience, WSP delivers drinking water infrastructure that protects public health and prepares communities for future challenges.

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PROJECT ELEMENTS

CASE STUDY

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Drinking Water Treatment 

Per- and Poly-fluoroalkyl Substance (PFAS) System Design and Permitting Veolia Water New Jersey (VWNJ) | New Jersey ■ Targeted PFAS treatment across multiple municipalities

Desalination Initiative in the City of Corpus Christi City of Corpus Christi | Corpus Christi, Texas

Shiprock Drinking Water Treatment Project Navajo Tribal Utility Authority (NTUA) | Shiprock, New Mexico

■ Strategic permitting guidance ■ Owner’s advisory expertise ■ Alternate delivery method evaluation

■ Wastewater treatment plant replacement ■ Clean water initiative for an underserved community ■ Supervisory Control and Data Acquisition (SCADA)-controlled operations WSP is partnering with the Navajo Tribal Utility Authority (NTUA) to deliver critical water infrastructure improvements across the Navajo Nation, including a new wastewater treatment plant (WWTP) in Shiprock, New Mexico. This project is part of a broader clean water initiative addressing the urgent need for reliable drinking water and sanitation in underserved communities. The Shiprock WWTP is in final design and will feature new headworks, an Extended Aeration Activated Sludge system, aerobic digesters, nutrient removal capabilities, disinfection systems, solids handling equipment, and upgraded electrical and SCADA controls. Site-specific enhancements include flood protection, a new operators’ building, an emergency generator, a bulk water station and septage receiving facilities. The new plant will replace aging infrastructure and ensure compliance with National Pollutant Discharge Elimination System permits, while also accommodating projected 20-year population growth. WSP’s long-standing collaboration with NTUA reflects our commitment to sustainable water access and public health, especially in this region where 30–40% of households lack running water.

■ Deep local expertise ■ Permitting, design and construction support

The City of Corpus Christi is advancing its water infrastructure through a comprehensive desalination initiative, aimed at enhancing long-term water supply resilience. The project encompasses infrastructure and facility design services, including underground utility locating, storm sewer improvements and geotechnical investigations. The scope spans civil, mechanical, utility, geotechnical and hydrology/ hydraulics disciplines. WSP is supporting the city with technical expertise in seawater reverse osmosis desalination, leveraging decades of experience in feasibility evaluations, design development and plant operations. The project aligns with Texas’s broader desalination strategy, as outlined in the State Water Plan and supported by the Texas Water Development Board. The initiative reflects a proactive approach to addressing water scarcity, regulatory compliance and climate resilience

WSP is supporting VWNJ on PFAS system design and permitting for Highlands Operations B – Package 3. This initiative addresses PFAS contamination across five municipalities in New Jersey: West Milford, Vernon Township, Woodridge, Andover and Independence. The project includes site-conscious design for small residential systems, leveraging WSP’s extensive experience in PFAS remediation and regulatory navigation. The scope encompasses permitting, design and construction support. WSP’s team brings deep familiarity with the sites and stakeholders, having worked on related projects since 2008. The treatment strategy centers on ion exchange using Purolite PFA694EBF resin, targeting six US Environmental Protection Agency-regulated PFAS compounds. The team includes experts in environmental engineering, permitting and construction inspection, all with New Jersey-specific experience. WSP’s approach emphasizes cost effective, future-ready solutions tailored to Veolia’s operational needs, supported by a strong client relationship and a proven track record in PFAS system delivery.

through advanced treatment technologies and integrated engineering solutions.

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Statement of Qualifications | Water

WASTEWATER TREATMENT Managing critical resources that support economic growth.

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The invention of the modern sanitary sewer in the 19 th century was one of the greatest achievements in human health history. Today, the role of safe wastewater handling has evolved beyond health—it is a cornerstone of environmental stewardship and sustainability. Yet as global growth increases the demand on our systems, aging infrastructure, emerging contaminants and extreme weather events threaten our ability to protect health and environment. These challenges demand more than maintenance; they require expansion and resilience. WSP helps communities adapt by safeguarding water access, reimagining efficiency and protecting the resources we depend on. Our multidisciplinary team works closely with clients to create treatment plans that use conventional and advanced technologies, including membrane bioreactors, nutrient

removal and waste-to-energy strategies. WSP’s capabilities cover a wide range of engineering services, enabling us to oversee infrastructure projects from the early stages of feasibility, planning and asset management, through to construction management, commissioning and operations support. We bring that same forward-thinking mindset to the tools we use. WSP integrates advanced technologies like 3-D CAD, Smart P&IDs and BIM to help clients visualize solutions before they’re built, which enhances planning, construction sequencing and long-term asset performance. WSP is actively involved with new and emerging technologies, which allows us to select the most sustainable and cost effective approach to meet our clients’ needs, while meeting regulatory standards and operational goals.

PROJECT ELEMENTS

CASE STUDY

Bottom Left: Zambarano Wastewater Treatment Plant

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Wastewater Treatment 

Zambarano Wastewater Treatment Plant Rhode Island Department of Administration Division of Capital Asset Management and Maintenance (DCAMM) | Burrillville, Rhode Island

Clovewood MBR Wastewater Treatment Plant Design Community Planning Consultants LLC | South Blooming Grove, New York ■ Modular MBR system design ■ New York Department of Environment Conservation (NYDEC) discharge standards ■ Odor-controlled structure and community consideration WSP was selected to design on-site wastewater treatment facilities for a 600-home residential development in Orange County, New York. The system was designed to treat an average flow of 260,000 gallons per day using a modular MBR system, with capacity for future expansion via parallel units. The plant met stringent NYDEC discharge standards to a nearby stream, including total suspended solids and biochemical oxygen demand of 10 mg/l, and total phosphorus of 0.5 mg/l. The MBR technology combined activated sludge with hollow-fiber membrane filtration, eliminating the need for large clarifiers and achieving low phosphorus levels. WSP’s design addressed significant site constraints, including proximity to wetlands and residential areas, aesthetic concerns and odor control. Odor-generating processes such as screening, grit removal and sludge handling were fully enclosed with odor-control systems. The MBRs were housed in a prefabricated metal structure with integrated electrical, laboratory and disinfection systems. Additional components included an effluent pump station, force main and full structural, mechanical and electrical design.

SeaTac Industrial Wastewater Treatment Plant Port of Seattle | Seattle, Washington

■ Phased construction plan ■ Tertiary reverse osmosis ■ Contractor outreach

■ Preparation of infrastructure and system designs ■ Airport upgrades and expansion ■ Implementation of Aerated Gravel Beds

The Port of Seattle (Port) is retaining WSP to assist with upgrading the SeaTac Industrial Wastewater Treatment Plant (IWTP) at Seattle Tacoma International Airport. Our work aims to meet stricter discharge limits and support future airport expansion. The project addresses reduced allowable discharges of deicing chemicals, measured as Biochemical Oxygen Demand (BOD), as required by the Port’s Industrial Waste Discharge Permit and National Pollutant Discharge Elimination System conditions. To manage increased runoff and lower BOD mass loadings, the Port will add a high-capacity storage tank and implement Aerated Gravel Beds. This will enhance compliance and operational flexibility for changing weather conditions. Phase I of the project includes validating the Basis of Design, designing infrastructure and systems, supporting general contractor and construction management bidding, and developing operations and maintenance manuals. Future phases may include additional infrastructure and treatment capacity. WSP’s work aims to comply with environmental standards and support sustainable airport operations.

The Rhode Island Department of Administration DCAMM oversees the Zambarano State Hospital wastewater treatment plant, which was out of compliance due to elevated copper and zinc levels. Under a consent agreement with the Department of Environemtal Management, DCAMM initiated a phased upgrade to meet effluent permit limits. WSP conducted a bench scale pilot study evaluating ultrafiltration and reverse osmosis (RO) membranes, confirming their effectiveness in removing targeted contaminants. WSP then designed a prefabricated membrane bioreactor (MBR) system to replace the existing primary and secondary treatment processes. The new system integrates tertiary RO treatment to address copper, zinc, phosphates and other dissolved salts. Due to site constraints and the need to maintain continuous operations, WSP developed a detailed phasing plan, constructing the new MBR over the north aeration basin while keeping the south basin active. WSP also supported DCAMM in contractor outreach and pre-bid coordination, resulting in a successful contract award in early 2025. WSP continues to provide engineering support throughout construction.

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Statement of Qualifications | Water

INDUSTRIAL WATER AND WASTEWATER TREATMENT Managing critical resources that support economic growth.

CLIENT LOCATION

In today’s industrial landscape, water is more than a resource—it’s a strategic asset. From energy and mining to power generation, pharmaceuticals and food production, businesses rely on safe, reliable water systems every day. At WSP, we help make that possible by engineering smarter, cleaner, and more resilient ways to manage and treat water. Our industrial water and wastewater treatment services are a culmination of engineering expertise, commitment to sustainability and a future-ready mindset. WSP’s team specializes in managing and treating process wastewater and designing full-scale treatment plants. We help clients solve tough water challenges with practical, energy-efficient solutions that reduce environmental impacts and keep operations running smoothly.

Every sector faces different water demands and challenges, so we tailor our approach to each situation’s unique needs. Our team of multidisciplinary expert engineers offers guidance on water chemistry, system selection and operational optimization. WSP brings excellence to every phase, from pilot testing to full-scale deployment. And as new challenges emerge, like per- and poly-fluoroalkyl substances contamination or pharmaceutical residues in water, WSP stays ahead with the latest technologies and proven solutions. Our goal is simple: to deliver cleaner water, stronger operations and a more sustainable future for the industries that depend on it.

PROJECT ELEMENTS

CASE STUDY

Right & Bottom Left: Berkeley Pit Mine Water Treatment Plant

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Industrial Water and Wastewater Treatment 

Berkeley Pit Mine Water Treatment Plant Atlantic Richfield Company (ARCO) | Butte, Montana

North Clear Creek Water Treatment Plant Colorado Department of Public Health and Environment | Lake City, Colorado ■ Design of a high-density sludge lime precipitation treatment facility ■ Civil, structural, mechanical and electrical engineering services ■ Construction management The North Clear Creek Water Treatment Plant is part of Operable Unit Four of the Central City/Clear Creek Superfund Site, listed on the National Priorities List in 1983 due to heavy metal contamination from historic mining. The 400-square mile watershed was impacted by cadmium, copper, manganese and zinc, which was threatening aquatic life and human health. In response, the Environmental Protection Agency and Colorado Department of Public Health and Environment issued a Record of Decision in 2004. Subsequently, in 2010 it was amended to select active treatment as the preferred remedy. WSP was engaged to deliver a full scale, automated high-density sludge lime precipitation facility treating 150–600 gallons per minute. WSP led process development, including bench and pilot studies, and completed full detailed design across civil, structural, mechanical and electrical disciplines. The facility was designed to fit within a historic mining town’s footprint. WSP also provided construction management, commissioning, operator training and a year of operational support. Since 2022, WSP has continued to provide operations and maintenance staffing and off-site engineering support.

Advanced Water Reuse Treatment Plant Design – Albuquerque City of Albuquerque | Albuquerque, New Mexico ■ Advanced industrial water reuse to support sustainable economic growth ■ Evaluation and development of Public-Private Partnership delivery models ■ Achieved a $100-million cost reduction Albuquerque and the State of New Mexico to address long-term water scarcity while enabling industrial expansion and economic growth. The project centered on the planning and design of a 5-million-gallon-per day advanced water reuse facility, capable of recycling treated effluent from high-tech manufacturing processes such as microelectronics and solar production. WSP developed an economic model and conducted a comprehensive assessing both construction and long-term operational costs. The team introduced a novel treatment process that preserved scalability for future capacity expansion while reducing capital expenditures by $100 million. The proposed treatment train included softening clarifiers, ion exchange, reverse osmosis, evaporation and crystallization technologies. This advanced configuration enabled 100% reuse of industrial wastewater, reinforcing As the owner’s representative, WSP partnered with the City of evaluation of Public-Private Partnership delivery models,

■ Mine water treatment plant design ■ Multi-media filtration and reverse osmosis polishing ■ Regulatory compliance

WSP designed and constructed a 10-million-gallons-per-day mine water treatment and polishing plant to manage rising water levels in the Berkeley Pit, a 1,780-foot-deep former open pit copper mine in Montana. Since its closure in 1982, groundwater inflow had been steadily filling the pit, prompting the need for a treatment solution to prevent water from exceeding a critical level. This project was completed in just 15 months under close regulatory oversight. The facility includes multi media filtration and reverse osmosis polishing that treats the interconnected tailings impoundment water to meet discharge standards set by the US Environmental Protection Agency and Montana Department of Environmental Quality. WSP’s integrated design-build approach and strong collaboration with the client facilitated project success. The plant was designed with flexibility to adapt to changing conditions and maintain long-term compliance. Over 90,000 work hours were completed without a safety incident.

Albuquerque’s commitment to sustainable development and economic resilience.

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Statement of Qualifications | Water

/ WATER RESOURCES

How do we reshape resilience? Proper planning. Strategic development. Innovative management. WSP’s water resources professionals have the experience and capability to tackle these critical issues for our future. We optimize the use of modern digital tools to determine risk and design long term solutions. WSP’s bright thinkers and skilled engineers bring their relentless determination to comprehensive water resource management. WSP has analyzed and designed some of the largest and most crucial dams and levees across the country. Our engineers take the many engineering and environmental factors into consideration to produce structures that are ready for the future. Our teams use innovative modeling tools such as 2-D and 3-D hydrologic and hydraulic modeling to solve the most complex challenges for surface water management. WSP is an industry leader in redefining flood risk and designing resilient infrastructure that serves and protects communities, especially for those most vulnerable. We combine our knowledge with innovative thinking to develop effective mitigation strategies, resulting in solutions that truly make a difference. At WSP, geographic information systems are not just a tool we use to analyze watersheds, but a language we use to communicate modeling results, risk analysis and mitigation strategies. We build tailored strategies to help communities understand and communicate the risks that face their populations. We offer the following services to assist clients in water resource management:

■ Ecosystem analysis and restoration. ■ Flood risk and inundation mapping. ■ Hazard mitigation services. ■ Hydrologic and hydraulic modeling. ■ Watershed modeling, analysis and planning.

RESOURCES / WATER Page 24