MODFLOW and More 2022 Program

Welcome to …
June 5 – 8, 2022
Princeton University
Princeton, New Jersey, USA

June 5 - 8, 2022
Integrated GroundWater Modeling Center (IGWMC)
Scientific Advisory Committee
Steve Berg
Aquanty Inc.
USA
Andrea Brookfield
University of Waterloo
Canada
Mackenzie Cremeans
Shook, Hardy and Bacon
USA
Nick Engdahl
Washington State University
USA
Christopher Green
U.S. Geological Survey
USA
Henk Haitjema
Emeritus, Indiana University
USA
Stefan Kollet
University of Bonn
Germany
Sorab Panday
GSI Environmental Inc.
USA
Jim Rumbaugh
Environmental Simulations,
Inc., USA
Erica Siirila-Woodburn
Lawrence Berkeley National
Lab, USA
Otto Strack
University of Minnesota
USA
Al Valocchi
University of Illinois
at Urbana-Champaign, USA
Jeremy White
INTERA Incorporated
USA
Xiaofan Yang
Beijing Normal University
China

Conference Organizing Committee
Reed Maxwell
Princeton University
USA
Mary Hill
University of Kansas
USA
Chunmiao Zheng
Southern University of Science
and Technology, China
Matt Tonkin
S.S. Papadopulos & Associates,
Inc., USA
Welcome to MODFLOW and More 2022: Hydrologic Modeling in a Changing World
The MODFLOW conference series unites cutting-edge developments and practical applications of hydrologic models
related to groundwater. The conference series takes its name from MODFLOW, one of the original and most widely used
groundwater modeling codes. However this is just a starting point, there are a broad array of well-established groundwater
and hydrologic models, we seek to foster communication among conference participants using all types of models. Our
conference brings together model users and developers to exchange ideas on the latest innovations in hydrologic
model applications, discuss the capabilities and limitations of currently available codes, and explore directions for
future developments. The conference series does not stop with groundwater modeling, rather we encourage
community participation by developers and users of all types of models in diverse applications, to help evolve the
modeling capabilities of our profession.
The conference includes featured presentations by:
John Cherry, Groundwater Models are Underused and Misused: An Explanation
Newsha Ajami, Uncovering the Dynamic Complexity of Water Use under Climatic Stressors and Policy Regimes
Abe Springer, Upland Land Management Influences on Hydrogeologic Processes
Steve Berg, Near Real-Time Forecasting with Fully-Integrated Hydrologic Models
Andrea Brookfield, Estimating groundwater withdrawals for irrigation - A method comparison
Nick Engdahl, An uncertain future for hydrogeological modeling
Christopher Green, Combining process models and machine learning to estimate regional groundwater age and water
quality
Henk Haitjema, On Water Tables
Mary Hill, FEWtures: Innovative Solutions to Sustain Rural America
Stefan Kollet, Progress in integrated modeling of terrestrial systems
Sorab Panday, Post-MODFLOW-USG - Ten Years After
Jim Rumbaugh, Evolution of Groundwater Models for Evaluation of Consumptive Use Permits in Southwest Florida
Erica Siirila-Woodburn, Wildfires and Water: Using rapid-response observations and high-performance computing to better
understand post-fire hydrology
Otto Strack, Using an old tool to assess the effect of groundwater on slope stability
Matt Tonkin, Insights from The Quest for Modeling’s Elusive Silver Bullet
Albert Valocchi, Modeling Diffusion and Reaction at Contaminated Sites with Low Permeability Zones: from Analytical
Solutions to MODFLOW/RT3D Simulations
Jeremy White, Toward rapid, reproducible, and robust groundwater modeling
And general sessions on the following topics:
− Modeling Agriculture, Water Resources and Climate Change
− Advances in Integrated Hydrologic Modeling
− Multi-Model Analysis, Parameterization, Sensitivity Analysis, and Uncertainty
− Modeling of Coastal Aquifers and Evaluation of Groundwater Consequences of Sea Level Rise
− Modeling in Support of Environmental Remediation and Restoration
− The Analytic Element Method to the Rescue: Developments and Applications
− Integrated Modeling to Understand and Manage Water Supply, Water Quality and Ecology
− Contaminant Transport Modeling: Development and Case Studies
− Simulation Code Verification, Benchmarking, and Intercomparisons
− Mining and Unconventional Applications of Groundwater Models
− Data Driven Modeling and Time Series Analysis to Understand and Solve Groundwater Problems

Sunday, June 5
Opening Reception: Refreshments and Hors D'oeuvres, Tours of the Lewis Science Library
Lewis Library Atrium
5:00 – 7:00 PM
Monday, June 6
Time McDonnell Hall, A02 McDonnell Hall, A01
8:00 Welcome and Opening Address Opening in McDonnell Hall, A02
8:05
Featured Presentation
Featured Presentation in McDonnell Hall, A02
Erica Siirila-Woodburn
Wildfires and Water: Using rapid-response observations and high-performance computing to better understand post-fire hydrology
8:25
8:30
8:46
9:02
9:18
Modeling Agriculture, Water Resources
and Climate Change I
Chaired by: Erica Siirila-Woodburn and Matt Tonkin
Amanda Triplett, Laura E.
Condon
Pietro Mazzon, Stefano
Piccioli, Paolo Colombo, Luca
Alberti
Sara Barbieri, Martina Baratto,
Matteo Antelmi, Luca Alberti
Randall Hunt, Daniel Feinstein,
Eric Morway
Climate warming-driven changes in
the cryosphere and their impact on
groundwater-surface water
interactions in the Heihe River Basin
Numerical modelling of the Adda-
Ticino basin (Italy) to assess the
relevance of irrigation recharge in
prediction of future groundwater
levels
Numerical modeling of a thermal
response test in MODFLOW-USG for
ground source heat pump design
support
Watershed Heat Flows, Lags and
Dampening under Climate Forcing
Multi-Model Analysis, Parameterization, Sensitivity Analysis,
and Uncertainty I
Chaired by: Al Valocchi and Sorab Panday
Michael N. Fienen, Nicholas T.
Corson-Dosch, Jeremy T.
White, Andrew T. Leaf,
Randall J. Hunt
Peter Vermeulen, Gijs
Janssen
Mark Bakker, Raoul
Collenteur, Frans Schaars
Prashanth Khambhammettu,
Philippe Renard, Jeremy
White, John Doherty, Marc
Killingstad, Michael Kladias
From datasets to decisions - a
repeatable workflow for groundwater
decision support
Efficient Model Calibration using Submodels
Estimation of parameter uncertainty -
How to deal with noisy neighbors?
The Traveling Pilot Point Method with
an Iterative Ensemble Smoother to
parameterize the categorical inverse
problem and improve remedial
outcomes
9:34
Marta Mekite, Kedir
Mohammed Bushira
Assessment of System Responses in
Groundwater-Surface Water
Interactions using SWAT-MODFLOW
Modeling, Lower Kobo Valley,
Ethiopia
Cheng Cheng, John Sigda,
Lakin Beal, Jeremy White
Probabilistic Analysis of Groundwater
Retention Under Uncertain Future
Conditions at a Legacy Mine Site
9:50 Coffee Break
10:10
Featured Presentations
Featured Presentations in McDonnell Hall, A02
Al Valocchi
Modeling Diffusion and Reaction at Contaminated Sites with Low Permeability Zones: from Analytical Solutions to MODFLOW/RT3D
Simulations
10:30
Sorab Panday
Post-MODFLOW-USG - Ten Years After
10:50
10:55
Ali Gebril
Modeling Agriculture, Water Resources
and Climate Change II
Chaired by: Erica Siirila-Woodburn and Matt Tonkin
Modeling the effect of changes in
irrigation practices on the Jefferson
River and tributary streams in the
Waterloo area, Waterloo, Montana
Multi-Model Analysis, Parameterization, Sensitivity Analysis,
and Uncertainty II
Chaired by: Al Valocchi and Sorab Panday
Ross Kushnereit Calibrating an ensemble of 1,000
realizations for estimating the
uncertainty of aquifer properties in the
vicinity of a long-lived radioactive
waste repository using a script driven
approach

Monday, June 6 continued
11:11
Joshua D. Larsen, Christian D.
Langevin, Joseph D. Hughes,
Richard G. Niswonger
Simulating Irrigated Agriculture in
MODFLOW 6 through the MODFLOW
Application Programming Interface
Frans Schaars, Raoul
Collenteur, Ruben Caljé, Mark
Bakker
Time Series Analysis and
Groundwater Models - Best Friends
Forever?
11:27
11:43
Andrew Calderwood, William
Rice, Bradley Simms, Cab
Esposito, Thomas Harter,
Laura Foglia
Saubhagya S. Rathore, Ethan
T. Coon, Scott L. Painter
Influence of hydrogeologic structure
on long-term sustainable groundwater
elevations for a moderate-altitude
rain-fed groundwater basin under
climate change
Improving Representation of Surface
Drainage Networks in Managed
Watersheds
Wes Zell, Ward Sanford,
Jason Pope
Jonathan P. Traylor, Randall J.
Hunt, Jeremy White
Resolving climatological and
subsurface controls on low flows for a
managed regional basin
Effects of auto-adaptive localization
on a model calibration using
ensemble methods
11:59
12:15 Lunch – Fine Peyton Lawn
1:30
Lunch Keynote – McDonnell Hall, A02
John Cherry via Zoom
Groundwater Models Are Underused or Misused: An Explanation
2:00 Transition
2:05
Featured Presentations
Stefan Kollet
Progress in integrated modeling of terrestrial systems
Featured Presentations in McDonnell Hall, A02
2:25 Mackenzie Cremeans
2:45
2:50
Data-Driven Modeling & Time Series Analysis to Understand &
Solve Groundwater Problems
Chaired by: Otto Strack and Henk Haitjema
Raoul Collenteur, Ainur
Kokimova, Steffen Birk
On the application of time series
models in the groundwater modeling
workflow: a case study from Austria
Simulation Code Verification, Benchmarking, and
Intercomparisons
Chaired by: Stefan Kollet and Mackenzie Cremeans
Christopher Muffels, Charles
Andrews, Sorab Panday
Ready Layer Zero: Simulating
Surface Water Features Using the
Connected Linear Network Package
3:06
Daniel B. Abrams, Cecilia
Cullen, Devin H. Mannix, Allan
E. Jones, Mike Krasowski
They will never take our degrees of
freedom: Using time-series to honor
data complexity in a parsimonious
model
Hiroko Hort, Ryan Hort, Sorab
Panday, Chin Man Mok
Development of MODFLOW-USG
based Geochemical Transport
Modeling
3:22
Elena Leonarduzzi, Hoang
Tran, Vineet Bansal, Robert
Hull, Luis De la Fuente, Peter
Melchior, Laura E. Condon,
Reed M. Maxwell
Predicting the hydrological response
to an unprecedented climate:
machine learning and physics-based
modelling
Rohit R. Goswami, Isaac
Johnson, Jay Fagan,
Raghavan Srinivasan, Mike
Keester, Jordan Furnans,
Robert Bradley, Ki Cha
Intercomparison of different modeling
techniques applied to estimate
recharge in aquifers of Central and
West Texas
3:38
Jack Wang, Marc Killingstad,
Prashanth Khambhammettu
Application of Time-Series Analysis to
Quantify Hydraulic Influence of a
Pump and Treat System to Help
Assess Capture
Onno Ebbens
Improve scripting efficiency using
memoization
3:54
Randall Hunt, Jeremy White,
Max Newcomer
Two automated learning approaches
for optimizing MODFLOW-NWT
solver settings
4:10 Coffee Break
4:30
Featured Presentation
Featured Presentation in McDonnell Hall, A02
Christopher Green
Combining process models and machine learning to estimate regional groundwater age and water quality

4:50 Software Demo Introductions
5:20 Transition
5:25
SOFTWARE DEMONSTRATIONS
Refreshments and Hors D'oeuvres - Frick Taylor Commons, Frick Chemistry Laboratory

Software Demonstration Session
Monday, June 6, 5:30 – 7:30 PM
1. GroundWater Desktop by Marinko Karanovic (S.S. Papadopulos & Associates, Inc.)
GroundWater Desktop (GWD) is a 3D User Interface for visualizing groundwater models, environmental data and 2D and 3D kriging. GWD
supports visualizing of MODFLOW and related programs (Modpath, MT3D) including the latest unstructured grid capabilities encompassed
within MODFLOW-USG and MODFLOW 6.
The open, flexible and intuitive interface allows the user to explore and analyze environmental data such as water levels and chemistry.
GWD includes several tools for 3D kriging, water level mapping and capture analysis and analytical solute transport.
Implemented in GWD, KT3D_H2O combines various programs to generate gridded maps of water level elevations with option to use several
drift types, together with approximate particle tracks and capture zones.
GWD provides powerful unique 3D kriging capabilities with an option to do kriging directly on Modflow grid and use of MT3D output as an
external drift.
Software presentation will include live demo of GWD Version 5.
2. HydroGeoSphere (HGS) and HydroGeoSphere-RealTime (HGSRT) by Brayden McNeill (Aquanty)
HydroGeoSphere (HGS) is the world’s most powerful integrated hydrologic modeling platform. HGS is a three-dimensional control-volume finite
element simulator which is designed to model the entire terrestrial portion of the hydrologic cycle. It uses a globally-implicit approach to
simultaneously solve the 2D diffusive-wave equation for overland/surface water flow and the 3D form of Richards’ equation for variably
saturated groundwater flow.
HydroGeoSphere RealTime (HGSRT) forecasts powered by HydroGeoSphere. HGSRT is your entry point to fully integrated modeling and
watershed science, all in near-real-time. HGSRT provides fully integrated hydrologic modeling as a service. We can deliver a near-real-time
representation of your organization’s site or watershed to your userbase, side-by-side with IOT monitoring and remote sensing data to give you
an eye on your land and infrastructure, anywhere in the world. With HGS at its core, HGSRT provides a cost-effective all-in-one SAAS solution
to help you exceed your compliance, research, and operations requirements.
3. Groundwater Modeling System (GMS) by Alan Lemon (Aquaveo)
Pre- and Post processor for MODFLOW modeling including MODFLOW-USG and MODFLOW 6.
4. Wellhead Analytic Element Model (WhAEM) & Groundwater Flow Analytic Element Model (GLOW) by Stephen Kraemer (U.S. EPA)
The EPA Center for Exposure Assessment Modeling hosts the analytic element models WhAEM and GFLOW at
https://www.epa.gov/ceam/groundwater-models-assess-exposures. Both computer modeling systems access the GFLOW1.EXE Fortran solver
for regional steady flow and advective transport in single aquifers. The modeling systems were created by a team led by Professor Emeritus
Henk Haitjema, Indiana University Bloomington. Both modeling systems build on web-served basemaps of Digital Line Graphs quad
representation of rivers and roads. The Wellhead Analytic Element Model (WhAEM) has a User Interface that is fine-tuned to support the
design of capture zones for pumping wells and for creating GIS maps of wellhead protection areas. The GFLOW modeling system accesses
the advanced features of the solver, including 3D and transient wells, conjunctive groundwater-surface water flows, contouring a stationary
seawater interface, and an extract to a user-designed MODFLOW structured grid.
5. Pastas by Raoul Collenteur (University of Graz)
Pastas is an open source Python package for processing, modeling and analyzing groundwater time series. The object-oriented structure
allows for the quick implementation of new model components. Data-driven models can be created, calibrated, and analyzed with just a few
lines of python code with the built-in optimization, visualization, and statistical analysis tools.
6. TS-CHEM by Charles McLane and Mark Kauffman (McLane Environmental, LLCl)
TS-CHEM is a software environment for solving the advection dispersion equation (ADE) that governs the transport of dissolved chemicals in
flowing groundwater. The user is provided a library of 32 mathematical solutions to the ADE from which to choose, allowing selection of the
model that is best suited to the problem to be analyzed, or allowing comparison of results from two or more solutions in a single analysis to
evaluate a range of outcomes.
7. Integrated Hydrologic Model (IHM) by Jeff Geurink (Tampa Bay Water)
IHM dynamically couples HSPF and MODFLOW to simulate all surface-water and groundwater hydrologic processes and their dynamic
interactions.

8. Visual MODFLOW Flex by Kristian Doerken (Waterloo Hydrogeologic)
Visual MODFLOW (VMOD) Flex is a powerful graphical user interface for MODFLOW and related codes that provides all the tools you need for
building three-dimensional groundwater conceptual and numerical models. VMOD Flex’s unique conceptually-centered approach to
groundwater modeling allows you to:
●
●
●
●
●
Conceptualize: Build multiple grid-independent conceptual models of the groundwater system in the same project including: geologic
formation structures, hydrogeologic properties, and boundary conditions based on a variety of GIS formats, allowing you the flexibility
to adjust your interpretation of the groundwater system before discretization allowing you to easily update your model
conceptualizations without having to rebuild from scratch or manage multiple projects
Discretize: Since conceptual models are grid-independent, you can easily design one or more structured or unstructured grids for
your model scenarios
Simulate: The conceptual approach in VMOD Flex allows you to focus on your modeling objectives and dynamically switch between
applicable versions of MODFLOW and related codes as needed
Analyze: VMOD Flex includes support for PEST and a calibration dashboard to efficiently compare and slice observation and
simulation data to facilitate history matching and model evaluation
Visualize: VMOD Flex includes built-in 3D visualization and animation tools that allow you to easily visualize your model inputs and
outputs including as plan, cross-section, or 3D views.
For more information, please see: https://www.waterloohydrogeologic.com/products/visual-modflow-flex/
9. Hydrology Information Sources & Databases by Emily Wild (Princeton University)
Emily Wild is the Chemistry, Geosciences and Environmental Studies Librarian in the Princeton University Library. From 1996 to 2018, she was
a hydrologist and librarian (physical scientist) at the U.S. Geological Survey, where she worked with MODFLOW field data collection,
data/model archiving, publications, and software. She will be providing "MODFLOW and More" conference attendees with hydrology
information sources, library research guides, data management information, and demonstrations of access to water data, imagery, and
bibliographic databases, as well as provide examples of groundwater hydrology, interactions of surface water and groundwater, saltwater
intrusion, groundwater quality, and water-use data and publications used during library research inquiries and library research consultations.
10. ParFlow by Reed Maxwell et al. (Princeton University)
ParFlow is a numerical model that simulates the hydrologic cycle from the bedrock to the top of the plant canopy. It integrates threedimensional
groundwater flow with overland flow and plant processes using physically-based equations to rigorously simulate fluxes of water
and energy in complex real-world systems. ParFlow is a computationally advanced model that can run on laptops and supercomputers and has
been used in hundreds of studies evaluating hydrologic processes from the hillslope to the continental scale. Our code is open source and we
promote a community of active users and developers interested in advancing computational hydrology and improving hydrologic understanding.
In addition to core capabilities, we will highlight many new model advancements that include a complete Python integration (including running in
Jupyter Notebooks), many different output formats (including NetCDF), and full GPU back-end capability.
11. HydroFrame by Danielle Tijerina and Calla Chennault (Princeton University)
HydroFrame is a platform to facilitate easy interaction with large computationally intensive hydrologic models and massive simulated outputs.
Our tools enable users to subset model inputs and outputs for any watershed in the US, run their own simulations, and visualize and analyze
existing model outputs or newly generated results. We also develop free educational tools and lesson plans to teach students of all ages about
groundwater and the hydrologic cycle.
12. HydroGEN by Bill Hasling, Elena Leonarduzzi, and Yueling Ma (Princeton University)
HydroGEN is a tool for forecasting water availability. It uses cutting-edge machine learning and supercomputing capabilities to provide water
managers and planners with the ability to predict water availability. Currently, our forecasts are seasonal but we hope to extend the models to
forecast up to a year in advance. Current models use a limited set of variables; over time, the product will evolve to model bedrock to treetop.
Users can create what-if scenarios that predict streamflow and soil moisture under a variety of climate and weather assumptions. These
scenarios are essential input into strategic planning and risk analysis.

Tuesday, June 7
Time McDonnell Hall, A02 McDonnell Hall, A01
8:00 Opening Comments Opening in McDonnell Hall, A02
8:05
Featured Presentation
Mary Hill
FEWtures: Innovative Solutions to Sustain Rural America
Featured Presentation in McDonnell Hall, A02
8:25
8:30
Modeling of Coastal Aquifers and Evaluation of Groundwater
Consequences of Seal Level Rise I
Chaired by: Jim Rumbaugh and Mary Hill
Rachel Housego, Fengyan Shi,
Anner Paldor, Ryan Frederiks,
Holly Michael
Impact of ocean surge profiles on
overwash-driven salinization in
coastal aquifers
Contaminant Transport Modeling: Development and
Case Studies I
Chaired by: Nick Engdahl and Chris Green
Pietro Mazzon, Daniela
Consonni, Matteo Antelmi,
Massimo Marchesi, Luca Alberti
*updated speaker
Reactive transport modeling and
fractionation isotope analysis to
evaluate chlorinated hydrocarbons
plume remediation time frame
8:46
Gregory Nelson, Derrick
Williams, Seogi Kang
Seawater Intrusion Modeling
Along the Salinas Valley Coast
Mohammed Nassar, Vicki
Kretsinger, Jeff Stovall, Penny
Carlo, Timothy Ginn, Nicolas
Spycher, Barbara Dalgish
Multi-component Reactive
Transport Model of Arsenic and
Manganese in Groundwater - City
of Fresno, CA
9:02
Julia A. Guimond, Aaron A.
Mohammed, Michelle Walvoord,
Victor Bense, Barret L. Kurylyk
Modeling coastal Arctic
groundwater dynamics in a
changing climate
Kien Pham, Ronald W. Falta
Using a semi-analytical method to
simulate matrix diffusion in
random discrete fracture networks
9:18
Mary Hingst, Holly Michael
Comparison of surface and
subsurface sources of seawater
intrusion
Angela M. Montoya, Virginia M.
Walsh, Jorge I. Restrepo
Effect of landscape self-supply
irrigation on migration of effluent
from septic tanks in a shallow
coastal aquifer, Miami-Dade
County, Florida
9:34
9:50 Coffee Break
10:10
Featured Presentations
Featured Presentations in McDonnell Hall, A02
Jim Rumbaugh
Evolution of Groundwater Models for Evaluation of Consumptive Use Permits in Southwest Florida
10:30
Nick Engdahl
An uncertain future for hydrogeological modeling
10:50
10:56
Modeling of Coastal Aquifers and Evaluation of Groundwater
Consequences of Sea Level Rise II
Chaired by: Jim Rumbaugh and Mary Hill
Ruben Caljé, Frans Schaars,
Harry Boukes
Scripted calculation of travel times
to wells in freshwater lenses using
MODFLOW 6
Contaminant Transport Modeling: Development and
Case Studies II
Chaired by: Nick Engdahl and Chris Green
Neven Kresic, Sorab Panday
Modeling Contaminant Fate and
Transport in Karst: Conduit-Matrix
Interactions
11:12
Tess Davids, Perry de Louw,
Gualbert Oude Essink, Eva
Schoonderwoerd, Nuan
Clabbers, Simon Jansen
Modelling framework to estimate
fresh groundwater occurrences
and volumes below atolls
Ronald W. Falta, Sorab Panday,
Shahla Farhat, Alan Lemon
MDT Matrix Diffusion Package for
MODFLOW-6 and MODFLOW-
USG Transport
11:28
Ryan S. Frederiks, Anner Paldor,
Holly A. Michael
Vulnerability to Sea-Level Rise
and Storm-Surge Salinization
Differs for Topography-limited and
Recharge-limited Systems:
Insights from Groundwater Flow
and Transport Modeling at
Assateague Island, MD
Howard W. Reeves, Daniel T.
Feinstein, Megan J. Haserodt,
Laura A. Schachter, Nicholas T.
Corson-Dosch, Martha G.
Nielsen
Use of MODPATH and interpreted
plume boundaries to constrain
MODFLOW model calibration

11:44
Anner Paldor, Ryan S. Frederiks,
Holly A. Michael
Modeled average salinity in
coastal aquifers depends on
specific storage, considering highand
low-frequency fluctuations in
sea level
Trevor Budge, Hai Pham
*updated speaker
Smoothed Frequency Map of
Technetium-99 Concentration
Plumes Used as Target for
Calibration of Fate and Transport
Model
12:00
12:16 Lunch - Fine Peyton Lawn

1:31
Tuesday, June 7 continued
Lunch Keynote – McDonnell Hall, A02
Newsha Ajami
Uncovering the Dynamic Complexity of Water Use under Climatic Stressors and Policy Regimes
2:01 Transition
Featured Presentations
Featured Presentations in McDonnell Hall, A02
2:06
Henk Haitjema
On Water Tables
2:26
Otto Strack
Using an old tool to assess the effect of groundwater on slope stability
2:46
Mining and Unconventional Applications of Groundwater Models
Chaired by: Mackenzie Cremeans and Jim Rumbaugh
Modeling in Support of Environmental Remediation and
Restoration I
Chaired by: Matt Tonkin and Stefan Kollet
2:51
Alberto Casillas-Trasvina, Bart
Rogiers, Koen Beerten, Laurent
Wouters, Kristine Walraevens
Joint inversion of multiple statevariable
data in groundwater
numerical modelling: Using 4 Herad
and Hydraulic Head observations
to condition groundwater flow and
transport models for the Neogene
Aquifer, Belgium
S. Kathleen Fogg, Geoffrey C.
Poole, Scott J. O’Daniel, Byron
E. Amerson
Effects of floodplain shading on
hyporheic aquifer temperatures:
Implications for restoration
3:07
Alisha Rodriguez, Andrew
Calderwood, Laura Foglia
Leveraging Access to Historic
Geologic and Monitoring Data to
Determine Impact of
Heterogeneity and Model
Upscaling on Local-Scale MAR
Model Results
Rodrigo Herrera, Prashanth
Khambhammettu
Applying an inverse modelling
approach using PEST/PESTPP-
IES to assess uncertainty of
seepage rates estimation of a
large Tailings Storage Facility
(TSF) located in Northern Chile
3:23
Reza Namvar, Breanna
Clabourne, Ralph Simon, Jingnan
Zhou, Zach Roy, Ali Taghavi,
Holly Nichols, Nova Clemenza
Application of a Groundwater
Model for a Large Dam Seepage
Recovery and Safety Analysis
Ward Sanford, Jeffrey Cazenas,
Jason Pope
Using MODPATH to investigate
the effects of groundwater transittime
distributions on long-term
water quality forecasting
3:39
Moussa Guira
Evaluating the Influence of
Geophysical Data Integration for
the Shellmound Inset
Groundwater-Flow Model of the
Mississippi Alluvial Plain
Yueqiang Liu, Daniel Strobridge,
Glen Anderson, Deepak
Bhojwani, Dong Ding
3D Numerical Model to Support
Corrective Action Program at a
Former Thorium Mill Site
3:55
William Russo, Matthew Weikel
Filling a Future Need:
Conceptualizing Contaminant
Liabilities for MRF Quarries
through Simulated Data
William Gottobrio, Jonathan
Gutsche, Cliff Baines
Implementation of a Scalable
Groundwater Flow Model
Workflow
4:11 Coffee Break
4:31
Featured Presentation
Featured Presentation in McDonnell Hall, A02
Andrea Brookfield
Estimating groundwater withdrawals for irrigation - A method comparison
4:51
4:56
Erik Toller
The Analytic Element Method to the Rescue:
Developments and Applications
Chaired by: Otto Strack and Henk Haitjema
An Analytic Element Model for
Intersecting and Heterogeneous
Fractures
Modeling in Support of Environmental Remediation and
Restoration II
Chaired by: Matt Tonkin and Stefan Kollet
Jack Wang, Marc Killingstad,
Michael P. Kladias, Prashanth
Khambhammettu, Scott T. Potter
Building a Better Mousetrap: The
Evolution of MODALL
5:12
Charles McLane
PEST and AEM Modeling for Data
Acquisition Planning
Khandaker Ashfaque, Prashanth
Khambhammettu, Michael
Kladias
Adopting Multiple Lines of
Evidence to Characterize Tailings
Fluid Induced Groundwater Plume
5:28
Huite Bootsma, Hans van
Meerten
QGIS-Tim: A QGIS plugin for
TimML and TTim
Jonathan Roller, Scott Potter,
Matthew Schnobrich, Charles
Elmendorf, Eric Moosbrugger,
Jason Cosgrove
Optimization of Hydraulic Plume
Control and Mass Flux Under
Highly Variable Groundwater Flow
Conditions Using MODALL

5:44
Lauren Eastes, Prashanth
Khambhammettu, Scott
Niekamp, Jack Wang, Vincent S.
Maresco
Quantifying and Visualizing
Surface Water/Groundwater
Interactions at an LNAPL-
Impacted Site
6:00 Transition
6:05
POSTER RECEPTION – Refreshments and Hors D’oeuvres
Frick Taylor Commons, Frick Chemistry Laboratory

Poster Session
Tuesday, June 7, 6:00 – 8:00 PM
Modeling Agriculture, Water Resources, and Climate Change
1. Cody Nichols, Mary C. Hill Machine learning for decision support in the context of food, energy and water systems
2. M. René Castillo, Audrey H. Sawyer, Kassim Mussa,
Stefano Gambini, Said Mateso
Model-Based Estimation of Groundwater Resources for the Makame Fault Area of the
Internal Drainage Basin (Tanzania)
3. Nicholas Jadallah, Elena Leonarduzzi, Reed Maxwell Locating Crop Circles Using Satellite Imagery and Machine Learning: Development of a
21st Century Tool to Quantify Groundwater Extraction in Agricultural Regions
4. Andrew Calderwood, William Rice, Bradley Simms, Cab
Esposito, Thomas Harter, Laura Foglia
Influence of hydrogeologic structure on long-term sustainable groundwater elevations for
a moderate-altitude rain-fed groundwater basin under climate change
5. Mohamed Mohamed Sustainable Management of Groundwater Resources in the UAE under Climate Change
Mining and Unconventional Applications of Groundwater Models
6. Mohamed Mohamed, Karim Mahfouz Modeling Aquifer Storage and Recovery in the Eastern District of United Arab Emirates
Using MODFLOW
7. Daniel Corkran, David Boutt, LeeAnn Munk, Brendan
Moran, Sarah McKnight
Modeling the Impacts of Lithium Brine Extraction and Freshwater Withdrawals on
Groundwater Discharge in Salar Systems
Advances in Integrated Hydrologic Modeling
8. Julian Hofer, Joseph D. Hughes, Christian D. Langevin,
Martijn J. Russcher
9. Laura Condon, Jackson Swilley, Danielle Tijerina,
Hoang Tran, Chen Yang, Jun Zhang, Reed Maxwell
Exploring the PETSc Toolkit for Solving Hydrologic Models with MODFLOW 6
Developments in continental-scale hydrologic modeling: ParFlow-CONUS version 2.0
model development, domain input formulation, spinup, and comparison to observations
10. Zachary Roy, Jingnan Zhou, Breanna Clabourne, Reza
Namvar, Ali Taghavi, Thomas Henderson, Rachel Grey,
Daniel Thomas
11. Hoang Tran, Zeli Tan, Tian Zhou, Yilin Fang, Ruby
Leung
Integrated Hydrologic Model Development and Calibration - Leveraging Python, and
Parallel Processing
Quantifying the impacts of urbanization on the hydrologic response to Hurricanes Katrina
and Ida in the Gulf Coast
Multi-Model Analysis, Parameterization, Sensitivity Analysis, and Uncertainty
12. Blake Lytle-Goldstein, Roy Jensen, Miao Zhang Stochastic Mounding Analysis to Support Design of Sustainable Stormwater Management
System
13. Peyman Abbaszadeh, Hoang Tran, Jackson Swilley,
Reed Maxwell
Studying the Impact of Meteorological Forcing Uncertainty on Physical Processes using
an Integrated Hydrology Model
14. Katherine Markovich, Jeremy White, Matthew Knowling Rapid, reproducible, and wrong? Exploring sequential data assimilation as a coping
mechanism for model structural error in groundwater decision support modeling
Modeling of Coastal Aquifers and Evaluation of Groundwater Consequences of Sea Level Rise
15. Mamoon Ismail, Jeeban Panthi, Sony Pradhanang,
Thomas Boving
Numerical Simulation of Sea Level Rise Impact on Groundwater in Coastal Aquifers - A
case study from Rhode Island
Modeling in Support of Environmental Remediation and Restoration
16. Wouter Beekman Temperature measurements as a tracer for seepage or infiltration
17. Prashanth Khambhammettu, Michael P. Kladias, Jack
Wang, Scott T. Potter
MODALL-U – An Unstructured Volumetric Tracking Tool for Facilitating Remedial Design:
Two Case Studies
18. Vladimir Prilepin Particle Tracking and Solute Transport Modeling to Support Evaluation of Groundwater
Extraction and Treated Water Injection Scenarios

19. John P. McDonald, Gregory J. Ruskauff, Paul W.
Humphreys
Comparison of Groundwater Simulation Results with Monitoring Data for a Pump-and-
Treat System at Waste Management Area S-SX, Hanford Site
The Analytic Element Method to the Rescue: Developments and Applications
20. Stephen Kraemer Assignment of Outer Boundary Conditions on a Site-Scale Model for Groundwater
Treatment System Design
Integrated Modeling to Understand and Manage Water Supply, Water Quality, and Ecology
21. Patience Bosompemaa, Samuel C. Zipper, Andrea
Brookfield, Mary C. Hill
Quantifying water sustainability in the Central Arkansas River Basin: Evaluating existing
tools at the regional scale
22. M.J.C. Van Baar, R. Caljé, W. Beekman The Big Lake, unravelling a hydrological mystery
23. Gengxin (Michael) Ou, Vivek Bedekar, Christopher
Neville, Doug Hayes, Jay Fagan, Rohit Goswami,
John (Jack) Sharp, Juan Acevedo
24. Gengxin (Michael) Ou, Chris Muffels, Matt Tonkin, Vivek
Bedekar
25. Nafiseh Salehi Siavashani, Guillermo Vaquero, F.
Javier Elorza, Manuel Gómez, Lucila Candela, Aleix
Serrat-Capdevila
26. Jonathan A. Quiroz, Pablo A. Garcia-Chevesich, Xiaolu
Wei, O. Gisella Martínez, Héctor Novoa, John E.
McCray
A State-Wide Automated Web-Based Tool for Class II Well Wastewater Injectate Analysis
- Part II
Lessons Learned Developing a Zone Budget Utility for ParFlow
The Lake Chad Transboundary Aquifer Arid North. Groundwater Fluxes Estimation
The impact of future climate, population growth, and land-use changes on water
resources in southern Peru: the different tale of two adjacent watersheds
Contaminant Transport Modeling: Developments and Case Studies
27. Wim J. de Lange Advective flow phenomena to better understand dispersion in field experiments
28. Pietro Mazzon, Daniela Consonni, Matteo Antelmi,
Massimo Marchesi, Luca Alberti
Reactive transport modeling and fractionation isotope analysis to evaluate chlorinated
hydrocarbons plume remediation time frame *Moved to oral presentation
29. Trevor Budge, Hai Pham Smoothed Frequency Map of Technetium-99 Concentration Plumes Used as Target for
Calibration of Fate and Transport Model
30. Metin Ozbek, Nathan Voorhies, Lucas Howard, Ryan
Swanson, Tad Fox
Modeled PFOA Plume Migration and Analysis Using PlumeSeeker TM
31. Daniel K. Burnell, Jie Xu, Justin Cooper, Jeff Benegar Application of Quantum Computing for Groundwater Flow and Solute Transport Modeling
Data Driven Modeling and Time Series Analysis to Understand and Solve Groundwater Problems
32. Yueling Ma, Elena Leonarduzzi, Amy Defnet, Peyman
Abbaszadeh, Peter Melchior, Laura E. Condon, Reed
M. Maxwell
33. Martin A. Vonk, Frans Schaars, Raoul A. Collenteur,
Mark Bakker
Development of a Data-Driven Approach to Reconstruct Water Table Depth over the
contiguous US
Time series analysis of synthetic time series generated with a variably saturated flow
model

Poster Session continued
Tuesday, June 7, 6:00 – 8:00 PM
Data Driven Modeling and Time Series Analysis to Understand and Solve Groundwater Problems
34. Jichao Bao, Liangping Li, Arden Davis Variational Autoencoder or Generative Adversarial Networks? A Comparison of Two
Deep Learning Methods for Flow and Transport Data Assimilation
35. Davíd A. Brakenhoff, Martin A. Vonk, Raoul A.
Collenteur, Mark Bakker, Marco van Baar
Application of time series analysis to estimate drawdowns from multiple well fields
36. Jacob Bauer Hydrologic Time-Series Analysis of Integrated Form of Glover Equation to evaluate
Aquifer Transmissivity at the Basin Scale Assuming Known Temporal Recharge

Wednesday, June 8
Time McDonnell Hall, A02 McDonnell Hall, A01
9:00 Opening Comments Opening in McDonnell Hall, A02
9:05
Featured Presentation
Matt Tonkin
Insights from The Quest for Modeling’s Elusive Silver Bullet
Featured Presentation in McDonnell Hall, A02
9:25
9:30
9:46
Advances in Integrated Hydrologic Modeling I
Chaired by: Steve Berg and Jeremy White
Christian D. Langevin, Joseph D.
Hughes, Alden M. Provost,
Martijn J. Russcher, Sorab
Panday, Jarno Verkaik, Scott
Paulinkski, Joshua D. Larsen,
Damian Merrick, Julian Hofer
Alastair Black, William Witterick,
Geoff Parkin
Recent Advances and Future
Directions for the USGS Modular
Hydrologic Model
Adaptive feedback in MODFLOW:
Head and Flow Rules Package
Integrated Modeling to Understand and Manage Water Supply,
Water Quality, and Ecology I
Chaired by: Mary Hill and Andrea Brookfield
Paul Juckem, Laura Schachter,
Nick Corson-Dosch, Chris Green,
Mike Fienen, Jeff Starn,
Wonsook Ha, (Howard Reeves
presenting)
Anna Ryken, Max Berkelhammer,
Reed M. Maxwell
A Nitrate Decision Support Tool
for Wisconsin - Methods and
Scenarios for Drinking Water
Wells
Characterizing Source Water for
Mountain Hill Slope Fluxes
10:02
Peter Melchior, Andrew Bennett,
Ben Horowitz, Yueling Ma, Laura
E. Condon, Reed M. Maxwell
Generative modeling and
inference of the hydrologic
pressure field and its dynamics
Aaron Pruitt, Michael Fienen,
Andrew Leaf, Megan Haserodt,
Stephen Westenbroek
Modeling and Groundwater
Resource Management in
Wisconsin’s Central Sands
10:18
Alden Provost, Christian D.
Langevin
The role and benefits of the XT3D
capability in groundwater flow and
transport modeling using
MODFLOW 6
Shabbir Ahmed, Russ Weeks,
Gustavo Suarez-Narvaez
Development of a Finite Element
Groundwater Model to Mitigate
the Impact of an Impoundment in
the Surficial Aquifer in South
Florida
10:34
Ryan Bailey, Jeffrey Arnold,
Michael White, Natalja
Cerkasova
Simulating Surface/Subsurface
Hydrologic Fluxes with SWAT+ for
Integrated Water Management
Chin Man W. Mok, Jeff Geurink,
Nisai Wanakule, Hiroko M. Hort,
Barbara A. Carrera
Improving Accuracy of an
Integrated Hydrologic Model
Application Using Rainfall from
Gauged and Radar Rainfall Data
Integration
10:50 Coffee Break
11:10
Featured Presentations
Jeremy White
Toward rapid, reproducible, and robust groundwater modeling
Featured Presentations in McDonnell Hall, A02
11:30
Steve Berg
Near Real-Time Forecasting with Fully-Integrated Hydrologic Models
11:50
11:55
12:11
12:27
Advances in Integrated Hydrologic Modeling II
Chaired by: Steve Berg and Jeremy White
Martijn J. Russcher, Joseph D.
Hughes, Christian D. Langevin,
Alden M. Provost, Jarno Verkaik
Joseph D. Hughes, Martijn J.
Russcher, Christian D. Langevin,
Richard R. McDonald, Julian
Hofer
Huite Bootsma, Joeri van
Engelen, Joost Delsman
Generalized Model Coupling in
MODFLOW 6
MODFLOW Application
Programming Interface for
coupling MODFLOW 6 to other
model components
Reproducible large scale
groundwater modeling: scripting,
version control, and workflows
Integrated Modeling to Understand and Manage Water Supply,
Water Quality, and Ecology II
Chaired by: Mary Hill and Andrea Brookfield
Jeff Geurink, Dingbao Wang, Yu
Zhang
Miguel Valencia, Grace Oldfield,
Michael Sukop, Jayantha
Obeysekera, Virginia Walsh,
Elizabeth Kelly, Katherine
Hagemann, Angela Montoya,
Samantha Morejon
E.J. Wexler, Dirk Kassenaar
Assessing the Impact of Land Use
Change on Surface Water and
Ground Water Resources Using
the Integrated Hydrologic Model
Regional Spatial Distribution of
Septic Effluent Discharge in
Southeast Florida, Based on the
Urban Miami-Dade Groundwater
Model
Feature-based Water Budget
Analyses for Integrated Surface
Water Groundwater Modeling with
GSFlow in southern Ontario

Wednesday, June 8 continued
12:43
Chen Yang, Carl Ponder, Bei
Wang, Hoang Tran, Jun Zhang,
Jackson Swilley, Laura E.
Condon, Reed M. Maxwell
Accelerating the Lagrangian
particle tracking in hydrologic
modeling at the continental scale
Jackson Swilley, Reed M.
Maxwell
Topography’s effect on water
balance and residence time in
mountain systems
12:59
Daniil Svyatsky, Scott Painter,
David Moulton, Saubhagya
Rathore
Modeling preferential flow paths
and tile drainage in agriculturaldominated
watersheds to study
their impact on nutrient export
Dirk Kassenaar, E.J. Wexler
Integrated modelling of fractured
rock: Process complexity versus
parameterization
1:15 Lunch – Fine Peyton Lawn
2:30
2:35
2:51
3:07
Advances in Integrated Hydrologic Modeling III
Chaired by: Steve Berg and Jeremy White
Malcolm Graham, Alastair Black,
William Witterick
Zachary Roy, Jingnan Zhou,
Breanna Clabourne, Reza
Namvar, Ali Taghavi, Thomas
Henderson, Rachel Grey, Daniel
Thomas *updated speaker
Soumendra N. Bhanja, Scott L.
Painter, Ethan T. Coon
Unlocking the black box of
recharge: modelling complex
processes with SWAc
Integrated Hydrologic Model
Development and Calibration -
Leveraging Python, and Parallel
Processing
Evaluating the performance of a
high-resolution integrated
hydrological model with and
without catchment-specific
subsurface structure information
Integrated Modeling to Understand and Manage Water Supply,
Water Quality, and Ecology III
Chaired by: Mary Hill and Andrea Brookfield
Adam Janzen, John Greer
Stuart Daley, Malcolm Graham,
Alastair Black
Maurice (Jay) Fagan, Gengxin
(Michael) Ou, Rohit Goswami,
Vivek Bedekar, John (Jack)
Sharp, Juan Acevedo,
Christopher Bente
Saving for a (Not) Rainy Day:
Modeling ASR in Provo, Utah
Going with the Flow: Tracking
groundwater flow in MF6 with
FlowSource
State-Wide Automated Web-
Based Tools for Class II Well
Wastewater Injectate Analysis,
Part I
3:23 Transition
3:30 RAFFLE and Student Awards
4:00
2022 GSA Birdsall-Dreiss Distinguished Lecturer
Abe Springer, Northern Arizona University
Upland Land Management Influences on Hydrogeologic Processes
McDonnell Hall, A02, 4:00 - 5:00 PM