Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment

Workshop 1D and 2D water systems and watershed modelling with US EPA SWMM5 and PCSWMM Europe

Date: 09 July 2018 - 10 July 2018
Location: IHE-Delft Institute for Water Education, the Netherlands


This 2-Day US EPA SWMM5 and PCSWMM Europe workshop provides an introduction to stormwater systems modelling, flood mapping/risk analysis and real-time flood forecasting with these two state-of-theart programs. You will learn how to use the software to analyze and manage drainage systems of all types. You will understand how to apply the model to solve existing problems such as flooding and water quality issues as well as to design new drainage systems. In addition to background theory and a software overview, a variety of hands-on, real-world, exercises and demonstrations will be presented, including 1D- 2D urban flood modelling, integrated watershed modelling, real-time flood forecasting, calibration and error analysis. Major themes presented include:

Urban drainage and water quality analysis

Analysis of major and minor drainage system components for urban drainage applications including pipe flow, street flow, and stormwater ponds. Estimate pollutant loadings and transport for both rural and urban applications. Sensitivity analysis and model calibration.

Green Infrastructure (LID/SUD) controls

Creation and analysis of Low Impact Controls, such as infiltration trench, vegetative swale, and rain barrels, within PCSWMM for a more appropriate management of stormwater in urban area.

2D modelling

Integrated 1D-2D modelling for overbank flooding from rivers/stream in urban areas and flooding in dual drainage systems (urban stormwater collection system piping and urban flood prevention system). Applications include real-world flood risk modelling of urban areas.


US EPA Stormwater Management Model (SWMM) is an open-source, comprehensive model for continuous and single-event simulation of runoff quantity and quality for urban, rural and watershed drainage, including detailed analysis of stormwater, sanitary, and combined sewer systems. It can model: dynamic storms; pollutant build-up, washoff and transport; infiltration and inflow; dynamic routing through rivers, channels and pipes; surcharging, surface flooding; storage ponds; culverts and bridges; storage treatment; diversions; pumping stations; various green infrastructure (GI), best management practices (BMPs) and low impact developments (LIDs); and much more. Established and continuously developed for 45 years, US EPA SWMM is simple to run, and is used effectively on small as well as large studies

PCSWMM is the most widely adopted spatial decision support system for US EPA SWMM5 modelling. Incorporating a modern, powerful GIS engine compatible with the latest GIS data formats, PCSWMM provides intelligent tools for streamlining model development, optimization and analysis in a comprehensive range of applications. With full support for the latest US EPA SWMM5 hydrology/hydraulics engine, PCSWMM provides a scalable (unlimited model sizes), and complete array of professional urban and watershed drainage system modelling tools for a competitive and affordable price. PCSWMM has a long development history (more than 30 years) and has been applied to more than 10,000 modelling projects in over 75 countries. There have been many enhancements to the software and improvements made in modelling practices.

PCSWMM Europe includes specificities for the European countries (design storm, rainfall-runoff modelling). Our latest version of PCSWMM Europe 2D provides a completely integrated approach to 2D modelling, allowing the user to seamlessly transition back and forth between 1D and 2D modelling.

Who should attend?

This workshop is multi-disciplinary and is designed for all who have a direct stake in stormwater management, flood management, non-point source pollution or the modelling of urban water systems. Attendees include: civil and environmental engineers; landscape engineers and architects; aquatic biologists, ecologists, fluvial geomorphologists and other scientists; urban geographers, and policy makers; professionals from municipal and government engineering; public works personnel; consultants; and instructors, researchers and graduate students at universities and research institutes. Participants should have some understanding of hydrology and hydraulics, as well as modelling concepts.


Nelly PEYRON, M.A.Sc,P.Eng., CEO of HydroPraxis the company that is distributing PCSWMM Europe. She has 20 years of experience in hydrology and hydraulics modelling. Over the past 10 years, she has worked at HydroPraxis as a professional engineering consultant on a wide variety of urban and watershed drainage management projects, and as a trainer in water systems modelling. She is also a professor in many engineering schools in France.

Robert JAMES, B.Sc.(Eng), P.Eng., Rob, President and CEO of CHI, has worked for over 25 years, both as a software programmer and as a consultant on a wide variety of urban and watershed drainage management projects. He has taught at over 100 workshops on PCSWMM and EPA SWMM and has headed the development of PCSWMM from its early DOS days to the current PCSWMM release.

Cost, Registration and Location


The cost of this 2 days workshop is:

  • 160 € for any students or people from IHE Delft
  • 240 € for any other students or people from the SENSE graduate school
  • 680 € for external people

Day 1: Introduction to water systems and watershed modelling using SWMM5/PCSWMM
The first day of the workshop will focus on topics including: PCSWMM / SWMM5 theory and applied cases, modelling urban drainage infrastructure, SUDS modelling and model calibration.

Day 2:Advanced and 2D modelling using SWMM5/PCSWMM 
The second day of the workshop will focus on topics including LID controls, 2D flood modelling, real-time flood forecasting and any particular projects targeted by the users.


Each participant will be required to bring their own laptop and will be responsible for their own accommodation. Laptops should have Windows 7, 8 or 10 operating system and have a minimum of 50GB free disk space and a minimum screen resolution of 1600 pixels in width. Prior to the workshop, you will need to install and activate the software on your laptop. Activation requires Internet access. Exercise files will be installed on your laptop during the workshop from a USB flash drive.

Training Location

Training will take place at IHE Delft Institute for water Education, Delft, the Netherland.

Workshop organized by HydroPraxis ( and CHI (


Workshop seats are limited and will be filled on a first-come, first-served basis.

The deadline for registration is June 29, 2018.

You can register by sending the registration form below completed and signed to:

Once your registration is complete you will receive a confirmation email. Closer to the time of the event you will receive details on the venue and additional workshop information. If you have any questions or comments, please do not hesitate to send a mail to:

> Flyer and registration form