All four abstracts modelEAU submitted to the yearly CAWQ central conference (now also organized with CWWA, see www.cwwa.ca/WastewaterConference_e.asp) have been accepted as oral presentations. We can possibly conclude that the different research topics we tried to present (ecosystem impact modelling, data quality evaluation, primary settler models and sewer system control) are scientifically relevant to the Canadian community. That is a nice achievement.