The CHI University Grant Program is an easy way for full time academics (professors, researchers, teaching assistants, graduate and undergraduate students) to obtain the latest PCSWMM software, SWMM & PCSWMM training, CHI publications, subsidized CHI conference attendance and CHI support . Plea... [More]

....all models are wrong, so honest modelers report their uncertainty first and foremost.... - email signature used by Bill James George E. P. Box famously said that “essentially, all models are wrong, but some are useful; the practical question is how wrong do they have to be to not be usef... [More]

  WHEN: Wednesday February 22 & Thursday February 23, 2012 WHERE: Toronto, ON, Canada VENUE:  Marriot Courtyard Toronto Brampton The annual International Conference on Stormwater and Urban Water Systems Modeling is a forum for professionals from across North America and overseas t... [More]

Rob James spoke about "Real-Time Flood Forecasting System for Three Urban Drainage Areas in Southern Ontario" at the Professional Engineers of Ontario Technical Night. When: Tuesday June 21st - refreshments at 7:30 p.m. and presentation at 8:00 p.m. Where: Grand River Conservation Authority Audi... [More]

Episode #102 Fluoride & Water Tech From the Roman aqueducts to the latest research on what happens when you turn the tap, it’s an hour on water. Dr. William James joins us for a lesson on the history and technology of municipal water systems. Listen or Download This Episode  ... [More]

   This User’s guide to SWMM5 has been compiled from earlier sources as an interim measure, to bridge the gap until a complete SWMM5 manual, with theoretical background, is released (now way overdue).  This 13th edition, 905-page manual has been reduced in size from the or... [More]

CHI has made over 400 peer-reviewed papers from our monograph series available for individual download. Covering 17 years of presentations (1993-2008) at CHI's International Conference on Stormwater and Urban Water Systems Modeling, these papers have been extensively edited for content and clarity a... [More]