Waterloo Hydrogeologic is pleased to partner with the NGWA to present “The New MODFLOW Course: Theory and Hands-On Training”


Course instructors Robert “Bob” W. Cleary, Ph.D. & Sharon Wadley, PG.

This four-day course alternates between lectures and hands-on laboratory exercises to introduce you to the modeling process including conceptual model development, numerical model implementation, model calibration, and model predictions. It presents the theory behind MODFLOW-2005 and its related programs (MODPATH, ZoneBudget, MT3D, and RT3D), and illustrates the practical development of three-dimensional groundwater flow and transport models using Visual MODFLOW. In addition, the attributes and usefulness of the latest versions of MODFLOW (2005, NWT, and USG) using Visual MODFLOW Premium (Classic and Flex interfaces) will be demonstrated, while WinPEST will be used to perform automated parameter estimation to evaluate the quality of model calibration.

Going beyond introductory topics, this course will also provide you advice on how to choose appropriate parameter distributions and model boundaries to develop defensible models of the groundwater system. You will gain a more complete understanding of the integration of GIS and Visual MODFLOW Flex for the development of groundwater models and for the presentation of model results. Groundwater resource applications that are covered include model calibration using groundwater heads and flows, comparison of MODFLOW solvers, new well development, and capture zone delineation. Contaminant transport topics include transport model development, model calibration to contaminant concentrations, source area design, choice of appropriate concentration boundary conditions, and comparison of transport solvers and three-dimensional visualization of flow and transport results.

In this course, you will learn how to:

Use Visual MODFLOW Classic and Visual MODFLOW Flex for your own three-dimensional groundwater flow and contaminant transport projects

Develop sound conceptual models with Visual MODFLOW Flex, the next generation of integrated conceptual to numerical modeling software

Develop defensible and transparent three-dimensional numerical models with proper grid designs, parameterization, boundary conditions, and site hydrogeologic conceptualization

Calibrate models to match observed field data, i.e., heads, flows, concentrations

Use MODPATH to model three-dimensional particle tracking for capture zone delineation

Use ZoneBudget to assess subregional water budgets within the model domain such as pit inflows, impacts of pumping on rivers/wetlands, etc.

Use MT3D and RT3D to model the natural attenuation of contaminants and simulate remedies

Calibrate your model WinPEST to improve model calibration and assess uncertainty in addition to gaining insight about the latest developments of PEST including powerful features such as pilot points and regularization methods to achieve impressive calibration results

Use Visual MODFLOW Flex to create an unstructured MODFLOW grid using MODFLOW USG, the new and revolutionary version of the popular USGS flow model.

For more  information please visit the NGWA course information page.