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Technical Workshops

(subject to change)

Maximize your EWRI Congress attendance by participating in free technical workshops taught by trusted subject matter experts. These technical workshops will begin as early as Sunday, , and will be integrated into the concurrent technical sessions throughout the remainder of the EWRI Congress. All technical workshops are Professional Development Hour (PDH) credit-eligible sessions.

Specific dates and times for all technical workshops can be found in the Technical Program.

Bulletin 17C: Updated Federal Guidelines for Flood Frequency Analysis

Instructor: John England

Want to know where the 1-percent probability flood comes from? Flood-frequency analysis of peak streamflow records provides the essential hydrologic input for estimating flood risk and for floodplain mapping. This short course will provide an overview and refresher on flood-frequency analysis of peak streamflow data, as well as introduce the new methods adopted in the new federal guidelines, Bulletin 17C. These new methods include a generalized method-of-moments estimator denoted the Expected Moments Algorithm (EMA) and a generalized version of the Grubbs-Beck test (MGBT) for the identification of potentially influential low floods. Participants will learn the new methods, how to properly characterize flood peaks for inclusion in a Bulletin 17C analysis, and how to interpret output from a flood frequency analysis. Flood frequency examples will be demonstrated using the latest versions of USGS PeakFQ and USACE HEC-SSP software.

Cybersecurity Essentials for Water Engineers and Scientists

Instructors: Amin Hassanzadeh & Riccardo Taormina 

Cybersecurity is one of the greatest challenges that is facing critical infrastructure systems. The ongoing merging of cyberspace with physical water assets together with a rise in sophistication of adversary motives, capabilities, and resources has resulted in a heightened sense of urgency for water cybersecurity.
This workshop will first provide an overview of the reported cybersecurity incidents in water and comparable industrial sectors, their characteristics, and lessons learned from them. It will then explain cybersecurity technology and terminology and covers the essentials of cybersecurity for industrial control systems including intrusion mechanisms, penetration testing, and attack detection pertaining to confidentiality, integrity, and availability aspects. The use of simulation models such as hydraulic models for simulating attacks and evaluating defense mechanisms will be reviewed. The interactive workshop will conclude with an overview of frontiers in water and industrial control cybersecurity as well as a conversation on the research and development opportunities for water resources industry and academia.
No prior knowledge of cybersecurity is required to attend this workshop. This workshop is developed and presented by the EWRI Task Committee on Cybersecurity of Water Distribution Systems.

Guidelines for Controlling Erosion and Sediment

Instructors: Don Baker & Shirley Clark

Standard ANSI/ASCE/EWRI 66-17, “Management Practices for Control of Erosion and Sediment from Construction Activities,” which establishes guidelines for controlling accelerated erosion caused by human activities at construction site, was published in 2017. The Standard provides tools to ensure the discharge of sediment does not significantly increase at a construction site as compared with preconstruction conditions and offers step-by-step guidance for state and local officials looking to establish effective and cost-conscious programs to manage erosion and sediment. The workshop addresses the multiple authority nature of some projects and ways to organize your erosion and sediment planning/control. The workshop will cover concepts, practices, and standards for erosion and sediment control addressed within the Standard; discuss erosion and sediment control plan components, preparation, site plan development, and evaluation; and offer guidance for plans/control measures for specific construction situations.

How to Build Reliability in the Results of Numerical Modeling

Instructor: Kaveh Zamani & Fabian Bombardelli 

Engineering judgments in water and environmental projects are increasingly relying on computational models as an alternative to experimentation. Verification and validation (V&V) and uncertainty quantification (UQ) are set of techniques to provide quantitative insight to the reliability of computational models. This workshop is designed to give the audience a broad view and hands-on experience of V&V and UQ in the context of numerical modeling in water and environmental engineering. An in-depth introduction to the fundamentals of verification procedures in scientific-computing is the first part of the course. Techniques for validation of models based on measurements and validation experiment design are being discussed next. Then, brief review of techniques for quantification of uncertainty due to model, numerical techniques and parameters. The workshop concludes with the emerging techniques of SQA for computational modeling such as “literate programming”, “automation of documentation”, “version control systems”, “reproducibility” etc.

Hydrologic Engineering Center’s Meteorological Visualization Utility Engine (HEC-METVUE)

Instructors: Caleb DeChant, Brett Palmberg & Fauwaz Hanbali

HEC-MetVue is the Hydrologic Engineering Center’s Meteorological Visualization Utility Engine, which is used in the Corps of Engineers to support real-time forecasting and dam safety analyses. HEC-MetVue allows for the display, verification, and editing of spatial data through interactive and visual means. HEC-MetVue is a primary component of the Corps of Engineers’ water management decision-support system, the Corps Water Management System (CWMS), providing observed and forecast meteorological dataset inputs for rainfall and snowmelt runoff forecasting. HEC-MetVue also supports the development of design storms, in particular, probable maximum precipitation, and their preparation as input for rainfall-runoff models that are used in dam safety studies. This workshop will include an overview presentation on HEC-MetVue and demonstrations of the program’s features.

Hydrologic Engineering Center Real-Time Simulation (HEC-RTS)

Instructor: Fauwaz Hanbali & Chan Modini

The Hydrologic Engineering Center’s Real-Time Simulation (HEC-RTS) program is a comprehensive data management as well as hydrologic and hydraulic modeling system for short-term water management decision support. Through HEC-DSS (Data Storage System), HEC-RTS facilitates the real-time use of observed and forecasted precipitation, observed flows and stages, and other meteorological and hydrologic data. HEC-RTS also facilitates the integration of HEC-HMS (Hydrologic Modeling System) for forecasting flows throughout a watershed, HEC-ResSim (Reservoir System Simulation) for simulating reservoir operations and release decisions, HEC-RAS (River Analysis System) for forecasting river stages and producing flood inundation maps, and HEC-FIA (Flood Impact Analysis) for estimating potential flood impacts on life safety and agricultural and urban infrastructure.

This technical workshop will provide an overview of HEC-RTS and its data and modeling components. The course will also include HEC-RTS exercises that demonstrate the acquisition of real-time data, the use of forecasted precipitation for flow forecasting, and flood inundation map generation for decision support.

Introduction to EPANET Water Distribution Modeling

Instructor: Arnold Strasser & Walter Grayman

This half day workshop will introduce the novice water distribution engineer to EPANET, a public domain water distribution software. This course will cover the history and development of the software, the basic functions, a hands-on demonstration of how to create a simple water distribution model and where the continual open source development of the software is headed.

Introduction to the Hydrologic Modeling System (HEC-HMS)

Instructor: Thomas Brauer

The Hydrologic Modeling System (HEC-HMS) can be used for many hydrologic studies such as flood damage reduction, water availability, spillway adequacy, and flow forecasting among others. The most common features of the program for use across many types of studies will be presented. Meteorologic processes for precipitation, evapotranspiration, and snowmelt will be described. Catchment simulation with subbasin elements and channel simulation with reach elements will be covered. The reservoir element will be presented with applications to lakes, reservoirs, pump stations, and dam failure analysis. Advanced topics in erosion and sediment transport, and uncertainty analysis with Monte Carlo techniques will also be included.

Municipal Staff Training for Green SMPS: From Integrated Planning Through Transitioning from Snow Plows to Flame Weeders

Instructor: Ruth Hocker

This technical workshop is targeted for municipal implementers and their staff and will focus on municipal practices related to sustainable green infrastructure stormwater design, construction, operation, and maintenance. Led by a team of practicing professionals, participants will learn about the design considerations when siting and planning stormwater management facilities; case studies on construction sequencing, utility conflict resolution, and overall construction challenges and solutions, including lessons learned from implementing municipalities; standard operating procedures, inspection recommendations, monitoring options, and record keeping; maintenance practices for green SMPs and recommendations to facilitate the transition from traditional public works’ maintenance practices to more targeted and specific maintenance activities, such as flame-weeding and de-icing practices; and integrated planning efforts to help build a sustainable, cost-effective program for green infrastructure stormwater management solutions.

NOAA Atlas 14: Precipitation Frequency Estimates of the United States

Instructor: Sandra Pavlovic

The Hydrometeorological Design Studies Center (HDSC) of the NOAA’s National Water Center (NWC) has been publishing updated precipitation frequency estimates and the supplementary information for the United States (US) and affiliated territories since 2003.The NOAA Atlas 14 estimates are published as Volumes of the NOAA Atlas 14, Precipitation-Frequency Atlas of the United States in the on-line Precipitation Frequency Data Server (PFDS). These estimates are used for a wide variety of design and planning activities such as to estimate the volume of detention basins and size detention-basin outlet structures, estimate the volume of sediment or amount of erosion caused by rainfall-runoff events, delineate and manage development in floodplains for the National Flood Insurance Program, etc.

This technical workshop will cover the methodology and application of the NOAA Atlas 14 estimates in engineering. The first part of the workshop will describe in detail the methodology and procedures needed to develop the estimates for a range of durations and a range of return intervals, as well as go over how to navigate through the PFDS website. The second part of the workshop will go over a simple hands-on engineering design example to allow participants to learn how to obtain and apply the NOAA Atlas 14 estimates. Common mistakes and misconceptions that are often encountered when using NOAA Atlas 14 estimates will also be discussed.

Riverbank Filtration for Water Supply in the United States

Instructors: Chittaranjan Ray & Matthew Reed

Riverbank filtration (RBF) is a simple, yet effective treatment technology that uses the natural soil and aquifer media to remove various pollutants from river water during induced infiltration of river water to pumping wells. In alluvial aquifers, when wells are placed sufficiently close to a river and pumped, the drawdown caused at the well induces the river water to flow towards the well screens. During soil and aquifer passage, various pollutants from river water are removed. For a bank filtration system to operate, there must be a source present (river or lake), the quality of the water must be relatively good, and there has to be a hydraulic connection between the river/lake and the aquifer (in other words in confined aquifer settings RBF is not effective). The quality of the source water and local hydrogeologic conditions are expected to influence the quality of filtrate water produced from RBF systems. Planning, design, installation, monitoring, and evaluation aspects of RBF systems with reference to specific US sites will be considered.

Solving Water Treatment Problems with Computational Fluid Dynamics

Instructors: Xiaofeng Liu & Jie Zhang

Computational fluid dynamics (CFD) has been successful in understanding and solving engineering problems in water treatment (includes drinking water, wastewater and stormwater treatment). To arm more environmental engineers with this powerful tool, the EWRI CFD task committee developed a primer aiming to show the engineers where to use CFD and how to use it. In this workshop, the EWRI CFD task committee will present this primer and collect feedback from participants through discussion. Guest speakers from universities, water utilities, and consulting companies will be invited to talk about the challenges and perspective of CFD applications in water industry. Through the workshop, participants should be able to learn the progress of CFD technologies in water treatment industry and emerging CFD applications in this area.

Sustainability and Drinking Water Treatment Issues in the Midwest

Instructors: Anita Anderson, Nathan Casey, Kevin Church, Chad Donnelly, Glen Gerads, Ted Henefin, Yigliola Malca, Enoch Nicholson, and Lee Odell

This half (½) day technical session will feature drinking water projects and systems that are developing their water supplies to be sustainable and reliable as well as addressing current drinking water treatment issues.

Presentations from featured Midwest utilities and contractors will include:

  • Minneapolis Water: "Minneapolis Water Works: 150 Years of Service"
  • Saint Paul Regional Water Services: “Water Supply, Treatment, and Distribution System Issues at the Saint Paul Regional Water Supply”
  • Minneapolis Water: "Use of Analytics to Predict Pipe Failure"
  • City of Appleton & CH2M: “Treatment Upgrades at Lower Costs – Appleton Water Treatment Plant Case Study”
  • City of Eagan & MDH: “Advancing Safe and Sustainable Water Reuse in Minnesota”
  • HRSD: “HRSD SWIFT Program – Sustainable Water Supply Program for the Hampton Roads Virginia Region
  • Des Moines Water Works: “Des Moines Water Works Approach to sustainable Nitrate Treatment”
  • CH2M: “Columbus OH Dublin Road Treatment Plant Expansion and Water Quality Improvements”
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