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Venue: Lombardy clear filter
Thursday, September 17
 

9:00am MDT

Path to Tender: Collaborative Planning and Design for the Fish Creek WWTP Upgrade Project
Thursday September 17, 2026 9:00am - 9:30am MDT
The Fish Creek Wastewater Treatment Plant (WWTP) Upgrade represents one of Calgary’s most significant treatment modernization efforts in recent years, driven by increasingly stringent effluent requirements and the need to reestablish treatment capacity for a rapidly growing service area. Advancing this complex program from a high‑level concept to a coordinated, tender‑ready design package required a structured, collaborative, and iterative approach that aligned process decisions, facility upgrades, and constructability considerations across multiple design stages. This presentation traces the key steps that shaped the project’s development from conceptual design, through preliminary and detailed design, and into the issued for tender (IFT) ready documents.
Rather than detailing each technical component of the upgrade, the presentation highlights how early evaluations – such as biological nutrient removal process selection, peak flow management requirements, and updated hydraulic modelling – guided downstream decisions related to site layout, tankage configuration, and integration with the existing operating plant. This early-stage coordination and selections established the foundation for design development and ensured that treatment objectives, regulatory needs, and expected future loading conditions were consistently carried throughout the project.
A critical component of the design progression was the structured Value Management (VM) process, which brought together City staff, the consultant design team, the construction manager, and independent reviewers to assess the design at key milestones and to provide design alternatives for consideration. Recommendations from the VM workshops helped refine process choices, optimize capital investments, and improve operational reliability. This collaborative environment accelerated alignment on major design drivers, such as biological nutrient removal configuration, primary and secondary treatment upgrades, filtration strategy, sludge handling improvements, and energy recovery opportunities, and ensured that the evolving IFT documentation reflected an optimized and coordinated project.
Attendees will gain insight into the practical challenges encountered as the project advanced through design, including navigating site constraints, maintaining plant operations during construction, coordinating multidisciplinary technical inputs, and balancing scope, schedule, and interested party expectations. This case study provides a clear and realistic look at how intentional planning, iterative evaluation, and strong team collaboration can successfully advance a major wastewater treatment plant upgrade, ultimately enabling utilities to implement complex upgrades with reduced risk and improved confidence.
Speakers
AF

Andrew Frankiw

Water/Wastewater Engineer, Team Lead, Stantec
Andrew is a Water/Wastewater Engineer and Team Lead at Stantec with key roles on the Bonnybrook Plant D Expansion and Fish Creek WWTP Upgrade. His experience spans design, coordination, construction management, commissioning, and project management support. Andrew combines technical... Read More →
avatar for Danelle Bishoff

Danelle Bishoff

Process Engineer, Stantec
Danelle is a process engineer with Stantec. While with Stantec she has contributed to the commissioning of the Bonnybrook WWTP Plant D, the largest cold weather BNR facility in North America. She led the secondary treatment design for the Fish Creek WWTP, Calgary, AB including the... Read More →
Thursday September 17, 2026 9:00am - 9:30am MDT
Lombardy 2nf Floor, Delta Hotel

9:30am MDT

Enhancing Nutrient Removal in Existing Infrastructure: An RBC‑to‑MBBR Retrofit Case Study
Thursday September 17, 2026 9:30am - 10:00am MDT
This case study details the retrofit of an existing Rotating Biological Contactor (RBC) system to a Moving Bed Biofilm Reactor (MBBR) configuration for Wabaseemoong Independent Nations, located near the Ontario–Manitoba border. The upgrade addressed stringent effluent requirements—TSS <25 mg/L, cBOD₅ <25 mg/L, and TAN <10 mg/L—within a design flow of 438 m³/d, while minimizing civil works and footprint. The solution leveraged existing headworks and secondary clarification, incorporating twelve stainless steel coarse-bubble diffusers per tank to optimize oxygen transfer and reduce maintenance associated with membrane replacement. Media backflow prevention was achieved through influent piping modifications. The MBBR provided intensified nitrification and BOD removal within the RBC basins, ensuring compliance with nutrient limits and operational simplicity. Commissioned in January 2024, the system demonstrated stable performance and energy efficiency, validating MBBR retrofits as a cost-effective approach for decentralized wastewater treatment facilities
Speakers
avatar for Kristin Faulkner

Kristin Faulkner

Regional Sales Manager, Nexom

Thursday September 17, 2026 9:30am - 10:00am MDT
Lombardy 2nf Floor, Delta Hotel

10:00am MDT

Feasibility and Limitations of Anammox Integration in Biological Treatment of Amine-rich Carbon Capture Wastewater
Thursday September 17, 2026 10:00am - 10:30am MDT
Carbon capture and storage (CCS) is a critical strategy for mitigating CO₂ emissions from carbon-intensive industries, with amine-based post-combustion capture (PCC) being the most widely applied technology. However, PCC generates amine-rich wastewater containing ammonia, amines, nitrosamines, and sulfate, posing significant environmental and health risks and requiring effective treatment before discharge. This study experimentally compared two biological treatment configurations for synthetic PCC wastewater: pre-denitrification–nitrification and pre-denitrification–anammox, to evaluate the feasibility of replacing conventional nitrification with anammox. The pre-denitrification–nitrification system was operated in sequencing batch reactors (SBRs) at a 2-day hydraulic retention time (HRT) under low organic loading (COD/N ≈ 3.5) without nutrient adjustment. Influent monoethanolamine (MEA) and diethanolamine (DEA) concentrations were gradually increased up to 3000 mg/L. The system achieved effective amine biodegradation in the anoxic stage and high ammonium and COD removal. However, the introduction of a diluted pilot-scale MEA-rich stream (~10,000 mg/L total amines) resulted in incomplete amine degradation, nitrite accumulation, and inhibition of nitrite-oxidizing bacteria. In parallel, mature anammox granules were stabilized for over 180 days, achieving 87.4% ammonium removal and a nitrogen removal rate of 187 mg N L⁻¹ d⁻¹. Although batch tests showed partial MEA and DEA degradation by heterotrophic denitrifiers, the integrated pre-denitrification–anammox system failed after coupling due to rapid loss of anammox activity under continuous exposure to residual COD and amines. Overall, the results indicate that pre-denitrification–anammox is unsuitable for amine-rich PCC wastewater without effective pretreatment, and alternative configurations such as partial denitrification–anammox or simultaneous nitritation, denitrification, and anammox (SNAD) are recommended.
Speakers
SH

Sepideh Hashemi Safaei

PhD candidate, University of Regina
My name is Sepideh, and I am a PhD candidate in Environmental Systems Engineering at the University of Regina under the supervision of Dr. Stephanie Young. My research focuses on the biological treatment of wastewater generated from carbon capture plants.
Thursday September 17, 2026 10:00am - 10:30am MDT
Lombardy 2nf Floor, Delta Hotel

11:00am MDT

MOBy Dick III - The Whale That Never Dies
Thursday September 17, 2026 11:00am - 11:30am MDT
The Saskatoon Wastewater Treatment Plant is piloting the Mobile Organic Biofilm (MOB) process as a strategy for process intensification within its biological nutrient removal system. Initial piloting demonstrated improved nitrification reliability and reduced secondary clarifier solids loading, leading to refinement of the operating strategy to better balance suspended and attached growth.
In the second year, the pilot focused on sustained low solids retention time (SRT) operation to intentionally shift ammonia oxidation capacity toward the biofilm fraction. By operating at lower mixed liquor suspended solids (MLSS) concentrations, the team aimed to strengthen biofilm development, reduce solids loading to the secondary clarifiers, and increase overall system resilience.
A key objective was to evaluate system behaviours during extended cold-weather conditions. Low-SRT operation reduced suspended nitrifier populations and increased reliance on attached growth on the mobile carriers. This operating strategy provided insight into how much nitrification capacity could be maintained within the biofilm fraction and how the system responded under varying seasonal and loading conditions.
Results from the second year highlight the operational opportunities and constraints associated with low-SRT operation, including the importance of managing dissolved oxygen, solids inventory, and carrier distribution to maintain consistent performance.
This presentation will share second-year performance results, lessons learned from winter and low-SRT operation, and key considerations for full-scale implementation of the MOB process as a long-term capacity and resilience strategy.
Speakers
MS

Mike Sadowski

Wastewater Treatment Plant Manager, City of Saskatoon
Mike Sadowski is the Manager of the City of Saskatoon Wastewater Treatment Plant. He has over 18 years of experience in wastewater treatment, with a background spanning plant operation, process engineering, and management. Mike is currently leading initiatives in process intensification... Read More →
MB

Michael Beal

Senior Process Engineer, City of Saskatoon
Michael Beal is the Senior Process Engineer of the City of Saskatoon Wastewater Treatment Plant. With over 10 years of experience, his career has focused on optimizing treatment performance, improving operational knowledge and strengthening long-term capacity planning. He is passionate... Read More →
Thursday September 17, 2026 11:00am - 11:30am MDT
Lombardy 2nf Floor, Delta Hotel

11:30am MDT

Low DO, High Impact: Achieving Sustainable Nutrient Management with Integration of Mobile Media
Thursday September 17, 2026 11:30am - 12:00pm MDT
Water Resource Recovery Facilities (WRRFs) face increasing pressure to meet stringent nutrient limits, reduce energy consumption, minimize chemical usage, and accommodate growth within limited footprints. 
 
Low dissolved oxygen (DO~0.3-0.5 mg/L) operation is a promising method to reduce aeration energy and support sustainable biological nutrient removal (BNR) pathways, such as simultaneous nitrification-denitrification (SND).  SND is particularly advantageous for carbon-limited plants, as it can free carbon once used in nitrogen removal and divert it to enhanced biological phosphorus removal (EBPR), which significantly reduces reliance on coagulants (e.g., ferric or alum). Total nitrogen (TN) removal offers benefits such as reduced alkalinity demand (e.g., caustic) and lower biomass yield, especially when SND lowers the use of exogenous carbon.  
 
Biofilm technologies are well known to increase process capacity. Unlike conventional biofilm systems such as integrated fixed film activated sludge (IFAS), moving bed biofilm reactor (MBBR), or membrane aerated biofilm reactor (MABR), mobile media (MM) can be uniquely integrated with low dissolved oxygen (DO) aeration strategies due to their small size and low mixing energy requirements.  They also require minimal retrofitting, limited to rotary screening for media recovery. 
 
In addition to significant capacity improvements, process modeling indicates integration of MM to a low DO process significantly enhances SND, achieving 3-4 mg/L greater TN removal than suspended sludge alone.  With MM, dropping the DO from 2.0 mg/L to 0.5 mg/L resulted in a decrease in effluent phosphorus from 1.2 mg P/L to 0.1 mg P/L, attributed to decrease in nitrate return in the return activated sludge (RAS) stream.  
 
Further, the biofilm potentially buffers seasonal kinetic variability (i.e., degree of acclimation). Low DO operation presents challenges at cold temperatures (10-13˚C), as very long aerobic solids retention times (SRTs) are required for full nitrification. While microbial acclimation to low DO may overcome these limitations, adaptation is not guaranteed and can introduce treatment and operational challenges.  With a biofilm, nitrification activity by the biofilm increases when the suspended sludge performance worsens. 
 
Our study combines process modeling and pilot-scale system operation to evaluate the potential for intensification and the synergistic effects of MM and low DO operation on nutrient removal performance and stability. To test the modeling-informed hypotheses, pilot-scale research is being conducted at the Boulder WRRF (Colorado, USA) using a 400-gallon reactor system treating primary effluent. Currently, a comparative study of activated sludge and hybrid MM systems is being performed using sequencing batch reactors. Next, a plug flow configuration will be evaluated. This research will offer a compelling nutrient removal roadmap for WRRFs needing to meet nutrient limits while advancing towards sustainability goals.




Speakers
MK

Mostafa Khalil

Data Scientist, Stantec
Mostafa Khalil is an innovation engineer and data scientist at Stantec’s Water Office of Innovation and Technology. He works at the intersection of process engineering, mechanistic modeling, and machine learning to develop digital solutions for water and wastewater systems. His... Read More →
Thursday September 17, 2026 11:30am - 12:00pm MDT
Lombardy 2nf Floor, Delta Hotel

1:30pm MDT

Sludge Densification with Sidestream Enhanced Biological Phosphorus (S2EBPR) Removal at Ashbridges Bay Wastewater Treatment Plant (WWTP)
Thursday September 17, 2026 1:30pm - 2:00pm MDT
Ashbridges Bay WWTP in Toronto is anticipated to reach an average daily flow of 818 megalitres per day (ML/d) in 2054. Due to space limitation for future expansion, intensification of existing secondary treatment is required. 
Different technologies were explored to intensify the existing trains, including S2EBPR. S2EBPR would intensify secondary treatment through promoting enhanced biological phosphorus removal (EBPR); the process increases readily biodegradable substrate to enhance floc-forming microorganisms such as phosphate accumulating organisms (PAOs). The facility typically achieves phosphorus removal through chemical precipitation in grit and primary treatment with dosing ferrous chloride.
The City of Toronto along with Jacobs has piloted S2EBPR in an existing secondary treatment train. One of the existing eleven activated sludge aeration tanks is modified to evaluate the potential for secondary treatment intensification by S2EBPR to increase the process capacity. 
Multiple modifications were completed on Aeration Tank 2 (AT2) to achieve required operational conditions for S2EBPR: 
  • Converting upstream passes of the AT2 to fermentation cells
  • Extending return activated sludge (RAS) distribution system from the main RAS header to distribute RAS flow between the fermentation and anaerobic cell appropriately 
  • Converting underflow to overflow baffles between the fermentation and anaerobic cells to retain sludge in the fermentation cells and direct supernatant flow from fermentation to the next cells 
  • Installing mixers and oxidation-reduction potential (ORP) probe in the fermentation cells to enhance and monitor fermentation
An intense sampling program was conducted from February to September 2025 to evaluate the process performance. Three testing periods were performed with intense substrate/nutrients profile and settling testing to evaluate the impact of S2EBR implementation on process performance and capacity. Flow to AT2 was increase from approximately 10% of total plant influent in Phase 1 to approximately 16% of total plant influent in Phase 3.
The trial results show that fermentation and EBPR began developing about one month into Period 1. S2EBPR performance improved in Period 2 due to higher solids retention in the fermentation cells from increased RAS flow; this produced higher rbCOD concentrations and greater phosphorus release, indicating stronger PAO activity. Effluent orthophosphate remained below 0.5 mgP/L in Periods 1 and 2, supported in part by ferrous dosing. In Period 3, phosphorus release increased further, suggesting enhanced PAO activity after ferrous dosing to AT2 stopped. Although effluent phosphorus rose slightly, it generally remained below 0.5 mgP/L.
A key objective of the trial was to assess process intensification potential. Settling tests showed clear shifts in sludge characteristics, including formation of dense sludge (>3 m/h) and partial granulation (>9 m/h). Granule fractions peaked at 35% in July when SVI was 82 mL/g, then declined in August due to increased flow and no ferrous dosing. S2EBPR significantly reduced AT2 SVI (80–105 mL/g) compared to a control train (AT6), where SVI ranged from 110–180 mL/g at similar or higher flows. Ferrous dosing strongly improved AT6 settleability but had a weaker effect on AT2.
Overall, the trial demonstrated that S2EBPR promotes dense sludge formation, increases secondary treatment capacity, and reduces reliance on costly ferrous chemicals. With appropriate bioreactor design and operational adjustments, process intensification can be achieved with S2EBPR.
Speakers
avatar for Roya Pishgar

Roya Pishgar

Process Engineer, Jacobs
Roya is a process engineer with Jacobs, focusing on wastewater treatment and biosolids management solutions. She has 10+ years of experience in consulting and academia and has worked on wastewater and biosolids projects for municipal clients. Roya is interested in biological wastewater... Read More →
Thursday September 17, 2026 1:30pm - 2:00pm MDT
Lombardy 2nf Floor, Delta Hotel

2:00pm MDT

Thermodynamic Analysis of a Venturi Injector for Oxygenation of Wastewater
Thursday September 17, 2026 2:00pm - 2:30pm MDT
Conventional municipal wastewater aeration relies heavily on the activated sludge method, in which blowers or compressors force air through small bubble diffusers at the bottoms of aeration basins. These bubbles slowly rise to the surface, transferring oxygen in the process, and allow microorganisms to digest the carbonaceous matter in the waste stream.  Recently, a new technology is being developed, termed a Confined Tube Aerator (CTA). Here, a pump draws water from a basin and forces it through a Venturi aspirator, where air may be naturally entrained. This multiphase mixture then travels to a coiled tube where oxygen may be transferred without stratification. The proposed technology has strong potential for cold‑climate operation, smaller physical footprint, and reduced operational requirements, making treatment feasible where conventional, lagoon-based systems are impractical.
The efficiency of a CTA system is highly dependent on the losses in the Venturi aspirator itself. Typically, assessment of Venturi aeration efficiency relies on testing, where Dissolved Oxygen (DO) content and pump power draw are used to evaluate standard metrics such as Standard Oxygen Transfer Rate (SOTR) and Standard Aeration Efficiency (SAE). However, these tests are time consuming and costly, and a new metric is proposed herein to use thermodynamic principles to gauge relative improvements in Venturi injector performance. This metric, called the Venturi Efficacy (VE), relies on motive water flow rate, inlet and outlet Venturi pressure, and ingested air flow rates, along with statistical measurements of bubble sizes to provide a relative measurement of the ratio of interfacial surface area flux to entropy generation within the Venturi injector.
The goal of this study is to compare calculated Venturi Efficacy measurement with SAE measurements using aeration tests. To perform each test, sodium sulfite is used to scrub a large 1000L tank of water of oxygen. Then, aeration is performed to saturated levels using a CTA assembly, with varying pump speeds and outlet valve position, the latter drastically affecting back pressure and hence, air injection. SOTR and SAE measurements were obtained for each test and compared in a relative manner to VE calculations.
Preliminary results show that system parameters including bubble size, air and water flow rates, and thermodynamic analysis of entropy generation can be used to assess a Venturi injector performance, relative to a baseline. This approach has the potential to decrease CTA system testing costs as compared to traditional aeration testing.
Speakers
ES

Erin Shapiro

Undergraduate Research Assistant, Carleton University
I am an undergraduate research assistant at Carleton University. I am currently in my 4th year of my bachelor's of engineering, conducting research to improve waste water treatment
Thursday September 17, 2026 2:00pm - 2:30pm MDT
Lombardy 2nf Floor, Delta Hotel

2:30pm MDT

Combined hydraulic and treatment kinetics model for designing constructed wetlands that use dosed vertical flow biofilters
Thursday September 17, 2026 2:30pm - 3:00pm MDT
The introduction of dosed vertical flow biofilters, DVFBs, a form of submerged constructed wetland for municipal wastewater treatment, have proven successful in cold climate regions of northern Europe, principally in Austria, Germany, Denmark and Poland.   This technology should not be confused with the very successful French system for use in temperate climates.  The primary differences between cold climates and temperate climates are the survival of plants during the winter in temperate climates and the dormancy of plants during the winter in cold climates; and, the fact that surface water will freeze.  Only submerged constructed wetlands are used in cold climates to avoid complexities associated with freezing.  The Canadian environment is a cold climate.  Initial attempts in using DVFB technology in Canada for treatment of municipal wastewater, while still in the development stage, are promising.
 
Computer modelling (simulation) of the combined hydraulics and treatment processes inherent to the DVFB technology have had limited success.   The flow through the filter bed of a DVFB is a complex mixture of saturated and unsaturated flow that can be successfully modelled despite its complexity.  But, while the treatment processes are generally known, their kinetics have not been accurately identified and models which attempt to combine the simulation of hydraulics with the treatment processes have not been able to reliably reproduce observations of flow or quality of treatment.  Consequently, most design activity relies on the growing body of information from those installations which are performing satisfactorily.
 
The combined hydraulic and treatment kinetics (CHTK) model described uses a combination of the accurate identification of the treatment processes and associated kinetics, an understanding of the hydraulics of the dosing process together with the experience and knowledge gained from successful DVFB facilities in Europe that are enshrined in the form of national guidelines and standards.  Procedures to implement the CHTK model have been developed.
 
The potential for successfully using DVFB technology throughout Canada, a cold climate, is greatly increased with the use of the CHTK model.
Speakers
avatar for David Manz

David Manz

President, Manz Engineering Lt.
Currently, David Manz is President of Manz Engineering Ltd. which consults on water treatment and constructed wetland technology and manufactures and sells backwashable, intermittently operated slow sand filter technology for use in communities throughout Western Canada. He is the... Read More →
Thursday September 17, 2026 2:30pm - 3:00pm MDT
Lombardy 2nf Floor, Delta Hotel

3:30pm MDT

Delivering Sustainable Wastewater Solutions: The Lumsden WWTP Upgrade Story
Thursday September 17, 2026 3:30pm - 4:00pm MDT
In 2022, the Town of Lumsden replaced its aging lagoon system with a modern Class 3 mechanical wastewater treatment facility, demonstrating how innovative design and strategic planning can deliver sustainable, cost‑effective infrastructure within tight regulatory and financial constraints. Designed to serve 2,500 residents in Stage 1 and 3,700 in Stage 2, the new plant provides a scalable treatment solution tailored for growing small communities seeking enhanced environmental protection.
 
The project included construction of a new main lift station, headworks building, process building, and a community‑focused odor control strategy. The liquid treatment train incorporates screening, grit removal, two sequencing batch reactors (SBRs), and UV disinfection. Solids management systems include sludge pumping and storage, rotary drum thickening, dual aerobic/anoxic digesters, centrifuge dewatering, and dedicated biosolids storage. Chemical treatment, aluminum sulfate for phosphorus removal, polymer for thickening and dewatering, and sodium carbonate for alkalinity, supports reliable, optimized performance. Since commissioning, the facility has consistently met all provincial effluent requirements, including CBOD₅, TSS, ammonia, E. coli, total nitrogen, phosphorus, and acute lethality parameters.
 
This presentation will walk through the project lifecycle, from planning and design through construction and commissioning, highlighting key challenges, lessons learned, and successes. The Lumsden WWTP showcases Stantec’s modular approach to capacity planning, with an initial two‑basin SBR system that meets current needs while streamlining future expansion for a growing community.
Speakers
avatar for Alex Munoz

Alex Munoz

Senior Process Engineer, Stantec Consulting Ltd.
Alex is a Senior Process Engineer with Stantec in Canada. He has played key roles in the design of several major wastewater treatment plant (WWTP) upgrades, including projects in Calgary, Regina, Moose Jaw, Midhurst, and Lumsden. He has also contributed to engineering and construction... Read More →
TW

Tylor Wood

Wastewater Treatment Lead, Town of Lumsden
Tylor has an Environmental Engineering degree from the University of Regina. He leads the operations of the wastewater collection and treatment systems in the Town of Lumsden, where a new Class 3 treatment facility was commissioned in 2020.
Thursday September 17, 2026 3:30pm - 4:00pm MDT
Lombardy 2nf Floor, Delta Hotel
 
Friday, September 18
 

9:00am MDT

Maintaining Protection of the City of Winnipeg’s Century Old Branch I Aqueduct
Friday September 18, 2026 9:00am - 9:30am MDT
The City of Winnipeg’s Aqueduct was constructed between 1914 and 1919 and supplies potable water to a population of 800,000 from Shoal Lake at the Ontario/Manitoba border. While a majority of the 155 km length flows by gravity, the portion within the City operates under pressure, was constructed from 1650 and 1200 mm pre-cast concrete pressure pipe, and is now known as the Branch I Aqueduct, supplying 40% of Winnipeg’s potable water.
 
Winnipeg’s clay soils are high in sulphates which causes a breakdown of the cementitious matrix in concrete structures. This was a known phenomenon at the time of construction, but as sulphate resistant cement had not been invented in 1914, Engineers opted for high quality concrete and the use of an underdrain system, to control groundwater and, by extension, reduce sulphate attack on the pipe. The underdrain was constructed from 150 to 300 mm clay tile pipe with open joints to permit the infiltration of groundwater, akin to a French drain, and discharges to the Seine River, Red River, and the combined sewer system. 
 
Following a 2021 condition assessment program, the City initiated a repair program to address urgent repairs on the Branch I Aqueduct Underdrain. The project included the repair of three river outfalls, the elimination of two connections to the combined sewer system, and the repair of defects along approximately 2 km of the underdrain. Challenges, to completing the repairs included limited access to the underdrain via 750 mm manholes, repairs beneath active rail tracks, and working near the City’s GWWD railway. Repairs using trenchless technologies were prioritized where possible using both cured in place pipe (CIPP) lining and CIPP spot repairs. However, where open cut repairs were required, the Branch I Aqueduct needed to be carefully exposed and unloaded to prevent inadvertent movement of the pipe. 
 
The repair project has restored the functionality of the underdrain within the project area, focusing on maintaining the underdrain functionality by using spot repairs (external and internal), full length lining in portions where underdrain functionality is not required, and replacement where trenchless rehabilitation was not feasible. As a result of this program, the Branch I Aqueduct continues to be protected against sulphate attack by the underdrain and is expected to continue to serve the City of Winnipeg for years to come.
Speakers
avatar for Adam Braun

Adam Braun

Senior Municipal Engineer, Stantec
Adam Braun is a Senior Municipal Engineer, Senior Associate, and Team Lead located in Winnipeg, MB with over 20 years of engineering experience. Adam specializes in buried pipeline structures, with extensive experience in the assessment, design, construction, and renewal of underground... Read More →
Friday September 18, 2026 9:00am - 9:30am MDT
Lombardy 2nf Floor, Delta Hotel

9:30am MDT

PFAS levels in Saskatchewan Water
Friday September 18, 2026 9:30am - 10:00am MDT
The Water Security Agency (WSA) in Saskatchewan has the legislative authority to regulate water and wastewater treatment systems and enforce standards with respect to drinking water and wastewater quality in the province. Recently, the Federal-Provincial-Territorial Committee on Drinking Water (CDW) published the drinking water quality objective of 30 ng/L for Perfluoroalkyl substances (PFAS) in drinking water. The WSA is part of the CDW will adopt the PFAS objective in the province. Before adoption of the objective, the WSA would like to conduct a scientific study that include determining the exposure levels of PFAS in Saskatchewan waters at selective water, wastewater treatment plants and receiving waters. The study will also aim to determine the treatment efficiency and assess other impacts, if any.  The science needed to assess the impacts of these compounds on the human health is still emerging.  The objective of the study is to determine the occurrence and concentrations of PFAS from selective water and wastewater treatment plants and downstream locations of wastewater treatment plants that discharge treated effluent into fish bearing waters in the province. The results will be useful in determining the exposure levels of PFAS in Saskatchewan waters and treatment efficiency that will help in adopting PFAS objective in the province. This paper includes the results of sampling/research studies that are conducted up to date to determine the exposure levels PFAS in water.  
Speakers
AT

Arasu Thirunavukkarasu

Manager, Water Security Agency, Government of Saskatchewan
Presenting paper
Friday September 18, 2026 9:30am - 10:00am MDT
Lombardy 2nf Floor, Delta Hotel

10:00am MDT

Design Considerations for Remote Indigenous Communities: Review of Two Case Studies in Canada and Australia
Friday September 18, 2026 10:00am - 10:30am MDT
In both Australia and Canada, access to potable water in many Indigenous communities is a challenge due to systemic issues; including a historic lack of investment, ageing infrastructure, and challenges associated with logistics in small remote communities. Equitable water access drives the need for water treatment plant (WTP) upgrades and their respective designs to holistically consider community needs. 
In Canada, a combination of systemic and historical challenges has led to the prevalence and persistence of boil water advisories. These advisories necessitate WTP upgrades and adequate staffing to provide a reliable supply. Though 151 long-term drinking water advisories have been lifted since November 2015 on public systems, there are still 39 long-term drinking water advisories in effect in at least 37 First Nations public water systems across Canada under long-term drinking water advisories as of February 10, 2026.  
The Australian Government has also committed to support the delivery of water infrastructure, which includes the National Water Grid’s $150M commitment towards water security in First Nations communities. One of the goals includes 9b. Closing the Gap. This goal by aims to have all Aboriginal and Torres Strait Islander households either: 1) receiving essential services that meet or exceed the relevant jurisdictional standards or, if near a town, 2) essential services to those households shall meet or surpass the standards generally applied within that town by 2031. 
The purpose of this presentation is to review two case studies and discuss parallels, challenges, and lessons learned for design considerations needed in WTPs in remote Indigenous communities. The two case studies are located in Fort McPherson, Northwest Territories, Canada and Bamaga, Northern Peninsula Area (Cape York), Queensland. Despite differences in climate and geography, both projects reveal parallels in project delivery and lessons learned that may support future drinking water equity for Indigenous communities globally.
While financial estimates and technical performance are usually prioritised in the optioneering process for selecting the best treatment processes for a source water, remote Indigenous communities face unique needs in the design and operation of potable water infrastructure beyond the traditional financial and technical inputs. This includes public perception, which requires building trust with local stakeholders, aligning staffing requirements with available skillsets, and managing complex construction costs and logistics. These considerations were critical to the implementation of both projects. The review and assessment included comparisons where applicable in the following focus areas: prediction of water demand, raw water quality, selection of water treatment processes, ease of delivery access, decision modelling principles, cost estimation factors, and construction considerations. This multi-faceted approach allowed for an exploration of both the conceptual and practical challenges involved in water treatment design for remote Indigenous communities in varying phases of delivery, from planning through construction and commissioning. 
This assessment revealed interesting parallels in challenges faced. Identifying shared obstacles in projects serving Indigenous communities can help uncover opportunities for improvement. By integrating these lessons learned into future designs, we can better understand barriers and further advancement for water equity access around the globe.
 
Speakers
avatar for Amy Yang

Amy Yang

Process Engineer, AECOM
Amy is a Process Engineer working in AECOM’s Markham, ON, Canada office. Amy has 10 years of experience in feasibility studies, preliminary design, detailed design, and technical support studies in multi-disciplinary potable water treatment infrastructure and desalination projects... Read More →
Friday September 18, 2026 10:00am - 10:30am MDT
Lombardy 2nf Floor, Delta Hotel

11:00am MDT

Unlocking Capacity at a Legacy Water Treatment Plant: A Risk-Informed, Multi-Criteria Approach to Infrastructure Investment Planning
Friday September 18, 2026 11:00am - 11:30am MDT
The Rossdale Water Treatment Plant (WTP) in Edmonton, Alberta is a legacy facility originally constructed in 1947 and currently supplies approximately 35% of the city’s potable water demand. Faced with accelerated projected population growth and the need for reliable long-term supply, EPCOR required a strategy to increase firm net potable capacity from 300 to 375 ML/d, a 25% increase, without greenfield expansion. The plant’s location within the North Saskatchewan River valley, combined with legacy-designated structures and an operational facility serving over 400,000 people, presented significant constraints on the scope and execution of potential upgrades.
A comprehensive capacity assessment was completed through five sequential technical memoranda (TM1–TM5), each targeting a major process system: raw water intake and low-lift pumping (TM1), flocculation and clarification (TM2), filtration and UV disinfection (TM3), and reservoir conveyance and high-lift pumping (TM4). Hydraulic modelling confirmed that all four systems were capacity-constrained, with firm capacities ranging from 238 to 273 ML/d against a target gross demand of 416 ML/d (accounting for 10% in-plant process losses). Fifteen upgrade alternatives were developed spanning from targeted, internal structural modifications to full redundancy construction. TM5 integrated these findings through a structured multi-criteria decision analysis (MCDA) framework incorporating weighted criteria derived from stakeholder workshops. Five evaluation criteria were applied to quantitative risk adjustment, sensitivity analysis, and quadrant analysis, testing the robustness of rankings: operations and maintenance, constructability, capital cost, performance, and facilities siting.
The analysis demonstrated that targeted upgrades to existing infrastructure consistently outperformed high-cost green field replacement or process technology upgrades. The recommended program comprises four coordinated investments: replacement of low-lift pumps and twinning  influent piping to resolve the most critical bottleneck; expansion of tube settler coverage and effluent launders to increase clarification capacity; high-volume filter underdrain and media upgrades to increase filtration loading rates pending pilot confirmation; and replacement of a hydraulic restriction in the East Flume chamber to eliminate the reservoir conveyance bottleneck. The integrated strategy achieves the targeted  375 ML/d firm capacity at an estimated AACE Class 5 capital cost of $130.6M (2025 CAD). A phased implementation plan aligns capital expenditure with capacity trigger points through 2036, allowing investment to be deferred or accelerated in response to actual demand growth.
This presentation presents the decision framework, key technical findings, and lessons learned from each process assessment. The methodology offers a transferable approach for utilities across Western Canada facing similar challenges: how to extract meaningful capacity gains from aging treatment infrastructure through disciplined, risk-informed investment planning rather than defaulting to costly greenfield construction.
Speakers
LP

Leonardo Paternina

Project Manager, EPCOR
A project manager for EPCOR.
LV

Leah Vignale

Process EIT, Stantec
A Stantec process EIT
Friday September 18, 2026 11:00am - 11:30am MDT
Lombardy 2nf Floor, Delta Hotel

11:30am MDT

Beyond the Contract: The 4 P’s of Water Project Management
Friday September 18, 2026 11:30am - 12:00pm MDT
An effective Project Management Office (PMO) can provide the structure to capture what works, turn lessons into repeatable practices, and disseminate those practices across projects, teams and regions.This interactive session explores how the PMO supports the development and application of The 4 P’s of Water Project Management as a practical framework for strengthening project delivery within a WCDA informed project environment.
Using water-sector stories, project examples and audience participation, we will examine how a PMO helps create greater consistency in project alignment, decision-making, communication, risk awareness, learning and execution while allowing teams the flexibility required for different interest holders, projects and delivery models. A well-designed PMO can help organizations capture knowledge, reinforce effective behaviours, align project teams around common priorities and continuously improve the way projects are delivered to a high standard of care to internal and external interest holders.


Speakers
Friday September 18, 2026 11:30am - 12:00pm MDT
Lombardy 2nf Floor, Delta Hotel
 
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