Articles
25 Oct 2018  |  Karen Finney
Banda Zone B1 & B3, located in Uganda, is a low-lying area characterized by informal and unplanned settlements. The main objective of this project was...
25 Oct 2018  |  Karen Finney
Fractal geometries can be used to overcome constraints associated with model development. In this study, two highly impervious urban catchments,...
17 Jul 2018  |  Karen Finney
We're working on a new tool for fire flow analysis in EPANET with PCSWMM. This tool will assess the available flow at network junctions while a...
04 Jul 2018  |  Ellen Hachborn
Stormwater systems can undergo transition from free surface flows to pressurized flows during rapid filling conditions where inflows exceed the...
29 May 2018  |  Ellen Hachborn
Every year we get dozens of students asking us if they can get software for free – and the answer is yes! Through the University Grant Program, we...
18 May 2018  |  Ellen Hachborn
Curious to know what we’re working on? The next release of PCSWMM features support for Python Scripting, improvements to the SRTC tool, enhanced 1D...
15 May 2018  |  Ellen Hachborn
Did you know PCSWMM can be used for sanitary and combined sewer modeling – not just stormwater modeling? Follow the link to see some projects in North...
08 May 2018  |  Ellen Hachborn
It’s always wonderful to hear about student success stories with PCSWMM! Fourth year engineering students at Penn State University were able to use...
29 Mar 2018  |  Ellen Hachborn
Follow-up field tests on three different parking lot pavements at one installation of rapidly cleaned out PICPs using a wide range of readily...
28 Mar 2018  |  Ellen Hachborn
This thought-provoking paper by Robert Muir, from the City of Markham, examines evidence-based policy gaps in water resources applicable to urban...
22 Mar 2018  |  Ellen Hachborn
Nile basin countries are experiencing water scarcity due to rapid growth in population and climate change. This paper by Mariam Allam, Hesham Bekhit,...
22 Mar 2018  |  Ellen Hachborn
Happy #WorldWaterDay from all of us at CHI! Check out the spotlight projects on our website to see some of the amazing projects PCSWMM has been used...
19 Mar 2018  |  Ellen Hachborn
This paper by Anne Mikelonis , Timothy Boe, Worth Calfee and Sang Don Lee, from the United States Environmental Protection Agency, identifies 27...
15 Mar 2018  |  Ellen Hachborn
A modeling study was undertaken by Peter Klaver and Jason Rutyna, from LimnoTech, David Collins from David J. Collins Engineering, and Kurt Robinson,...
08 Mar 2018  |  Ellen Hachborn
The photos from this year's ICWMM are up on our Facebook page! Feel free to tag yourself and share the pictures. Hope to see you all next year! Follow...
05 Mar 2018  |  Ellen Hachborn
A process and a set of tools are proposed by Adam Erispaha, from EmNet, and Christine Brown, from the Philadelphia Water Department, to automate the...
26 Feb 2018  |  Ellen Hachborn
Stormwater systems undergoing rapid filling may present a variety of operational problems, one such being the displacement of manhole covers, which...
22 Feb 2018  |  Ellen Hachborn
A numerical tool was developed Thomas Tiveron, Soheil Gholamreza-Kashi and Darko Joksimovic from Ryerson University to calculate the stormwater runoff...
20 Feb 2018  |  Ellen Hachborn
A methodology for model calibration and evaluation that considers an annual hydrograph as a single observation instead of 365 daily observations,...
05 Feb 2018  |  Ellen Hachborn
The efficacy of the environmental management system (EMS) at Dallas Fort Worth International Airport (DFW) in capturing spent aircraft deicing fluids...
29 Jan 2018  |  Ellen Hachborn
Conventional urban drainage system implemented in Quito, Ecuador are not optimal for technical, social or environmental aspects. This paper by Diego...
24 Jan 2018  |  Ellen Hachborn
When designing stormwater infrastructure, a green first approach requires realizing the full potential of green solutions before committing to gray...
22 Jan 2018  |  Ellen Hachborn
A balanced stream gauge network design is required to establish scientifically defensible baseline hydrological conditions for simulating future...
18 Jan 2018  |  Ellen Hachborn
A greywater-fed green roof system was developed and studied in the city of Al Ain, United Arab Emirates (UAE). The study by Rezaul Chowdhury from the...
16 Jan 2018  |  Ellen Hachborn
Small drinking water treatment systems (SDWTS) for First Nations communities in northern regions of Ontario, Canada, may rely on surface water as a...
11 Jan 2018  |  Ellen Hachborn
As of late, modeling of urban drainage systems is often comprised of both the major and minor systems. Representing the inlet capture functions is of...
22 Dec 2017  |  Ellen Hachborn
In water-scarce countries, greywater reuse is becoming a popular choice as it is the largest component of domestic wastewater. Research by Dr Rezaul...
19 Dec 2017  |  Ellen Hachborn
The use of unmanned aerial vehicles for urban flood modeling was examined by Zoe Jingyu Zhu, Albert Z. Jiang, Yang Xiang, Benjamin Baird and Edward...
19 Dec 2017  |  Ellen Hachborn
Following the drought of 2006 and 2007, the Lower Colorado River Authority of Texas developed a medium-range forecast model to incorporate...
19 Dec 2017  |  Ellen Hachborn
A case study of the Chicago River watershed was completed using both data-driven and physical models to simulate total nitrates. Naila Mahdi and...
21 Nov 2017  |  Ellen Hachborn
A new research project on stormwater retrofits at Exhibition Place in Toronto, Canada is now on OpenSWMM.
15 Nov 2017  |  Ellen Hachborn
The need to provide adequate water quality control using best management practices (BMPs) requires accurate modeling to determine their ideal...
31 Oct 2017  |  Ellen Hachborn
Welcome to PCSWMM version 7.1! The new PCSWMM version supports alternative runoff methods, IDF tools, scripting and LandXML importing as well as other...
31 Oct 2017  |  Ellen Hachborn
Wishing all the SWMM USERS a spook-tacular Halloween.
29 Sep 2017  |  Ellen Hachborn
The OpenSWMM website now links to the SWMM users and reference manuals as well as other reference documentation making it easier for you to find...
12 Sep 2017  |  Ellen Hachborn
In version 7.1 of PCSWMM, we will be releasing some significant new features including additional runoff methods such as the rational method. To...
08 Sep 2017  |  Ellen Hachborn
We're working on a new tool to import LandXML files into SWMM5 projects. This tool will enable modelers to bring their AutoCAD drawings and Civil 3D...
31 Aug 2017  |  Ellen Hachborn
We're working on a new tool for scripting in PCSWMM that supports any number of scripts to call various functions. Functions will include setting up...
24 May 2017  |  Ellen Hachborn
Our latest JWMM paper by Masson (Centre de Recherche et de Développement en Science du Sol, Economie, Environnement, Aménagement), Lefer (Université...
12 May 2017  |  Ellen Hachborn
For those interested in GIS and water quality, be sure to read the latest JWMM paper by Shwesin Koko, Ranjna Jindal, and Romanee Thongdara from...
06 May 2017  |  Ellen Hachborn
Check out the latest JWMM paper on stormwater modeling for solar farms by Thomas Barnard and James Barbis (Amec Foster Wheeler) and Mohamed Agnaou...
21 Mar 2017  |  Katy Jonker
Although LID-controls are still a fairly recent addition to SWMM, they have undergone several updates in the last years. Interested? Find out more in...
21 Mar 2017  |  Katy Jonker
Source control techniques called Water Sensitive Urban Design (WSUD) are increasingly being endorsed and adopted for managing stormwater in urbanizing...
02 Mar 2017  |  Katy Jonker
In Zimbabwe, the rapid growth of urban areas has affected the quality of surface water due to overexploitation of the resource and improper waste...
01 Mar 2017  |  Katy Jonker
Confronted with an array of water management-related challenges, Canadian municipalities are finding solutions by integrating initiatives for...
16 Feb 2017  |  Katy Jonker
Adequate sanitation is of global concern, and for Cha-Am, Thailand, it's a major priority due to its extensive oceanfront beach area. To learn more...
14 Feb 2017  |  Katy Jonker
Many software packages calculate calibration statistics, but most are neither freely available nor open source. This reality has led researchers...
09 Feb 2017  |  Katy Jonker
With urbanization being an ongoing trend in virtually all nations, resultant flooding problems from increased impermeable surface areas have...
07 Feb 2017  |  Katy Jonker
Prediction of precipitation variability and its influence on the hydrological cycle and water quality is an increasingly active area in hydrological...
01 Feb 2017  |  Katy Jonker
Want to explore the development and calibration of a dual drainage model designed for the Cooksville Creek Watershed? Take a peek at the new JWMM...
30 Jan 2017  |  Katy Jonker
Knowing the distribution of pollutants associated with different sized stormwater particles allows for more accurate determinations of their sources,...
24 Jan 2017  |  Katy Jonker
Stormwater runoff is a leading contributor to water quality and aquatic life habitat impairments in New England surface waters. Jamie Houle from UNH...
20 Jan 2017  |  Katy Jonker
The analyses of particle size distributions of stormwater runoff plays a key role in understanding the pollutant characteristics of a specific site...
18 Jan 2017  |  Katy Jonker
In the design of sewer systems, there is typically little attention paid to air movement - yet air movement is one of the determining factors in odour...
05 Jan 2017  |  Katy Jonker
With the availability of long-term continuous flow meter and rainfall data (and faster computers and software) event-based rainfall-runoff models can...
22 Dec 2016  |  Katy Jonker
Accurately predicting water quality in river systems is critical to enabling decision makers to respond more quickly to emergencies such as oil spills...
19 Dec 2016  |  Katy Jonker
Large rainfall events such as tropical storms and hurricanes leave Florida's St. Johns River susceptible to flooding. In search of a solution,...
12 Dec 2016  |  Katy Jonker
Wetlands in Southern Ontario are experiencing degradation from urban development. In response, Caroline Charbonneau from Walter Fedy and Andrea...
06 Dec 2016  |  Katy Jonker
"The environmental and societal benefits of urban green space have long been recognized, but such land use often becomes a secondary consideration in...
02 Dec 2016  |  Katy Jonker
Have you read the new JWMM paper titled Modeling of Transient Pneumatic Events in a Combined Sewer Overflow Storage Tunnel System by Peter Klaver and...
25 Nov 2016  |  Katy Jonker
A new paper has just been published in the JWMM: Assessing the Impact of Variations in Hydrologic, Hydraulic and Hydrometeorological Controls on...
15 Nov 2016  |  Katy Jonker
Are you intrigued by the tool that was developed to enable efficient sensitivity analysis and calibration study for steady state and transient models?...
08 Nov 2016  |  Katy Jonker
Have you read the brand new JWMM paper assessing SWMM 5 hydrologic parameter benefits for model calibration by Justin Siegrist, Mark Pribak and David...
26 Oct 2016  |  Katy Jonker
Bill James, Founder of CHI, and Harald von Langsdorff, President of F. von Langsdorff Licensing Limited, have published a new paper in the Journal of...
27 Sep 2016  |  Katy Jonker
Sakshi Saini and Amanjot Singh with Credit Valley Conservation in Mississauga, Ontario are digging deep into the modeling of low impact development...
31 Aug 2016  |  Katy Jonker
Interested in stormwater collection systems? Undergraduate students Subin Geevarghese, Noorudheen A.P. and Kadhirvel K. from Anna University are. In...
25 Jul 2016  |  Katy Jonker
Interested in an integrated EPA SWMM model for calculating the pollutant removal efficiency of low impact development practices? Check out the...
19 Jul 2016  |  Katy Jonker
New OpenSWMM Research Project on a methodology for linking 2D overland flow models with the sewer network model SWMM 5.1 based on dynamic link...
30 Jun 2016  |  Katy Jonker
New OpenSWMM Research Project: Utilizing GIS in the Development of Detailed Distribution Urban Drainage Models by Masters student Zakia Alam Raihan,...
27 Jun 2016  |  Katy Jonker
Are you interested in understanding the relationship between urban best management practices and ecosystem services? Check out this new OpenSWMM...
22 Jun 2016  |  Katy Jonker
An interesting new OpenSWMM Research Project has been published on integrated sensing and prediction of urban water for sustainable cities by...
11 Jun 2016  |  Katy Jonker
Interested in the impact roadway runoff has on a headwater tributary of the Cahaba River in Alabama? Graduate Research Assistant Catherine Spencer and...
29 Feb 2016  |  Katy Jonker
Brand new publication: High Resolution Flash Flood Forecasting for the Dallas-Fort Worth Metroplex by Hamideh Habibi, Arezoo Rafieei Nasab, Amir...
26 Feb 2016  |  Katy Jonker
Interesting new SWMM paper: Comparison of Three Methodologies for Quasi-2D River Flood Modeling with SWMM5 by John Beck.
20 Jan 2015  |  Meghan Korman
Register 4 weeks before any of our regular scheduled workshops and receive a 10% discount!
11 Jan 2012  |  Barb Malone
The CHI University Grant Program is an easy way for full time academics …
05 Jan 2012  |  Bill James
....all models are wrong, so honest modelers report their uncertainty first and foremost....
26 Apr 2011  |  Barb Malone
Rob James spoke about "Real-Time Flood Forecasting System for Three Urban Drainage Areas in Southern Ontario" at the Professional Engineers of Ontario...
23 Mar 2011  |  Barb Malone
From the Roman aqueducts to the latest research on what happens when you turn the tap, it’s an hour on water.