Technical Workshop: Best Modeling Practices for CFD Applications
Sunday, June 5, 2022 | 8:00 am – 5:00 pm
This workshop will advance the practice of using CFD modeling as alternative or complementary approach to traditional empirical models to optimize the design water treatment units such as clear wells, wastewater treatment plants, detention basins, and hydrodynamic separators.
Generalities: An inadequately designed CFD model can result in non-convergence, and even generate poor and unreliable results. This workshop aims to showcase the minimum set of steps that need to be considered when developing and running a CFD model to ensure simulations results are accurate and reliable.
A concept flow chart for best CFD modeling practices include but are not limited to:
- Problem Formulation and Geometry Creation
- Meshing and Mesh Independence analysis
- Initial and Boundary Conditions
- Choosing the right Numerical Methods
- Choosing the right Turbulent Closure Scheme
- Definition of physical Models
- Model Calibration and Validation
- Uncertainty Analysis
Target Audience: watershed groups, water resources engineers, government and public officials, stormwater managers, land developers, watershed planners, and environmental organizations.
The audience will also be introduced to free surface modeling, and more sophisticated physics air-water models, pollutant transport, and particle dynamics.
Technical Workshop: Remote Sensing for Water Quality Applications
Sunday, June 5, 2022 1:00 pm – 5:00 pm
Satellite-based remotely sensed data has the potential to fill system-wide data gaps in ambient water quality monitoring and quantify pollutant sources and loads; however, such applications are scant and largely limited to the research domain. This workshop will serve two primary purposes: (1) demystify remote sensing tools and data sets for water quality managers and practitioners; and (2) collect information on current understanding and use of remote sensing data sets in water quality management applications.
The interactive workshop will provide participants with an overview of the various remote sensing products of relevance to water quality applications and related characteristics, including spatial, temporal, and spectral scales. This will be achieved through a series of short talks by members of the task committee. We will review data acquisition and processing approaches and demonstrate common platforms that can be used to view and download data sets. Following one or more talks within each theme, we will have interactive deliberations to advance the state-of-the-practice in applying remote sensing to water quality problems.
Surveys will be conducted in advance of and following the workshop to help identify shortcomings in the state-of-practice and research from both water quality modeling and remote sensing domains that are impeding the widespread use of these data. The results of the surveys as well as the deliberations within the workshop will be analyzed post-workshop to provide recommendations toward future data development and applications. The workshop team envisions a summary paper to be submitted for publication in EWRI’s Journal of Water Resources Planning and Management.
Technical Workshop: So, you've been called as an expert witness? What to expect and how to prepare.
Sunday, June 5, 2022 | 1:00 pm – 5:00 pm
In today’s litigious atmosphere, professionals are often asked to be expert witnesses in civil suits or to simply provide services for mediations, arbitrations, and forensic investigations. While this can be a nerve-wracking experience, there are various techniques you can employ to become an effective expert witness.
Join Dr. David T. Williams as helps you understand what to expect when asked to participate in legal processes, how to prepare, and how to minimize your organization’s exposure to possible legal actions.
Most expert witness courses are taught by attorneys. Instead, Dr. Williams brings to the table practical, industry-related experience as an expert witness in more than 40 court actions. He will leverage the acumen he has gained to impart proper behavior to adhere to throughout the process, including ethical conduct, how to handle oneself under pressure, and the role of the expert witness as a non-advocate and servant of the court.
This course will enable you to represent yourself as a competent and knowledgeable expert witness who is in control, credible, and - most of all - unbiased.
- The legal process
- What to do at inquiry
- Special contract considerations
- Attorney client privilege
- Reports, Affidavits, Declarations
- What is deposition and how to prepare
- What is allowed at trial and how to prepare
- Scenarios of deposition and trials and how to handle difficult situations
Technical Workshop: Tracking COVID-19 - The Search for Disease through Wastewater Surveillance: Applications and Future Considerations
Monday, June 6, 2022 | 1:30 pm – 3:00 pm
The COVID-19 worldwide pandemic has highlighted the need for tracking the spread of disease in real time. Wastewater surveillance provides some unique attributes for this application. In this workshop, an overview of wastewater surveillance will be provided in the context of systems at varying scales (campus and city scale). Challenges will also be discussed as well as future considerations for the development of broader wastewater surveillance programs.
To understand the applications and concepts of wastewater surveillance to support disease outbreak dynamics and predictions. Attendees will also understand potential future applications of these approaches for COVID-19 and other uses.
Technical Workshop: An Empirical Security Methodology for Adversarial Threats And Cost Benefit Analysis
Tuesday, June 7, 2022 | 10:30 am – 3:00 pm
The water/wastewater sector has experienced an inadvertent gap in physical security protection by using risk models such as Design Basis Threat (DBT) and Risk Analysis and Management for Critical Asset Protection (RAMCAP) as a foundation for physical security guidelines. Although the intent was to provide a baseline for security countermeasures, the probability of adversarial threats (such as aerial assaults) based on historical frequency and available intelligence have frequently skewed the recommendations provided in vulnerability assessments, causing an underinvestment in security countermeasures and a lax culture of security in the face of emerging threats.
This study will review the history and original intent of these methodologies that were adopted by the atomic and nuclear energy sector, and their requirements for effectiveness. These adjusted methodologies became the basis for security countermeasures in the EWRI 56-57 Guidelines for Physical Security standard, and the AWWA J100-10 Risk and Resilience Management of Water Wastewater Systems standard that was recommended by the America’s Water Infrastructure Act (2018) requirement for Risk and Resilience Assessments.
Due to the lack of an adequate historical dataset and available intelligence regarding threat attributes and characteristics, the requirements listed in these methodologies are not achievable and will remain as unknowns in water/wastewater/stormwater systems. Therefore, the risk models for adversarial threats have fundamental errors that must be replaced by an alternative risk model.
By using criteria that is known, security can be designed for specifically identified scenarios and consequences to determine the probability of success for that given threat; mathematically expressed as Ps|T x Si x Ci. Once these parameters are established, countermeasures can then be quantitatively and qualitatively measured for effective difficulty and used for cost benefit analysis. This methodology removes the dependency of the previous requirements and improves guidance for vulnerability assessment recommendations and security budgeting.
Technical Workshop: Natural and Nature-based Infrastructure Systems
Tuesday, June 7, 2022 | 10:30 am – 3:00 pm
This workshop will advance natural infrastructure and Engineering With Nature® practice, and explore its role in sustainable infrastructure development.
The specific objectives are to:
- Define natural infrastructure and its relationship with ASCE policies, standards, and initiatives;
- Expose participants to riverine and coastal case studies to improve technical understanding of natural infrastructure projects, processes, and benefits;
- Familiarize participants with recent guidelines on natural infrastructure including the USACE International Guidelines on Natural and Nature-based Features;
- Improve understanding of how conventional infrastructure and natural infrastructure can be integrated to do the right project, and do the project right;
- Build awareness of opportunities for expanding acceptance and deployment of natural infrastructure.
Target Audience: water resources engineers, environmental scientists, government and public officials, stormwater and floodplain managers, land developers, watershed planners, and environmental organizations.
Technical Workshop: Georgia EPD's Use of Modeling and Technical Analysis in Water Permitting and Planning (BEAM)
Tuesday, June 7, 2022 | 1:30 pm – 5:00 pm
This workshop will introduce attendees to three new planning and permitting initiatives under way at the Georgia Environmental Protection Division (EPD). These topics will illustrate how EPD incorporates, at a technical level, the specific water use needs and impacts of diverse stakeholders as it guides the state’s water future.
- Regulating and Encouraging Water Efficiency Practices among Public Water Systems in Georgia.
- A Case Study in Reservoir Permitting: Indian Creek Reservoir and Its Comprehensive Regulatory Review Processes.
- Basin Environmental Assessment Modeling (BEAM) for Detailed Permitting and Planning.
This presentation will provide:
- A general discussion of basin modeling concepts as applied within LP-based BEAM models
- Illustration of scripting techniques for automating BEAM construction and developing unimpaired flow hydrology when large numbers of water users are incorporated
- Demonstration of BEAM application scenarios with a focus on modifying BEAM to represent different structural and operational alternatives, as well as defining and evaluating hydrologic Performance Metrics.
The learner will discover the capabilities of the new Basin Environmental Assessment Model (BEAM) that the Division will be using to assist decision-making.
Technical Workshop: HEC-RAS One-Dimensional Riverine Water Quality Modeling
Wednesday, June 8, 2022 | 10:30 am – 3:00 pm
HEC-RAS has been widely used in U.S. and worldwide. Because of its widespread use in flood analysis and other hydraulic studies, most large river systems as well as many smaller rivers and streams in the country have already been modeled with HEC-RAS. There are many sites with existing HEC-RAS hydraulic applications across the country. As EPA and the States and Tribes continue to focus on attainment of water quality standards, many of the sites of HEC-RAS applications are coming under scrutiny for water quality and ecological issues. Newly-released water quality capabilities in HEC-RAS will allow leveraging of those existing hydraulic applications to efficiently modeling water quality in support of developing TMDL, environmental impact statements and management alternatives.
The workshop topics to be discussed include:
- Overview of water quality capabilities in HEC-RAS
- Basic data requirements for developing a riverine water quality model
- Setting up and running an 1D water quality model
- Viewing water quality results
- Model calibration and validation
- Hands-on exercises
The instructional session will walk attendees through a complete HEC-RAS water quality application. "Hands-on" computer sessions will provide attendees an opportunity to become familiar with the latest water quality capabilities, perform water quality analysis, and visualize the model results. Emphasis will be on the preparation of input data for a water quality model application, model set up, calibration and validation. Attendees will be asked to download and install the latest software and datasets on a computer they can bring to the workshop.