On September 15, 2017, ICLR hosted a Webinar entitled 'Diagnosing and Reducing Basement Flood Risk in New and Existing Homes', led by Norton Engineering's Barbara Robinson. Clean water (Inflow and Infiltration (I/I)) is currently entering brand new sewer systems (both on public and private property) at an unacceptable rate across North America. This clean water reduces the capacity of sewers to convey large storms, constraining new development, and impacting already taxed downstream infrastructure, all of which are costly. Barbara Robinson, M.A.Sc., P.Eng., from Norton Engineering discussed an ongoing project supported by ICLR to examine unacceptable levels of I/I entering brand new sewer systems, understand the complexities behind this issue and to develop measures to prevent it. Issues with the Ontario (and National) Building Codes that are directly impacting the amount of I/I entering new sewers on private property, was also discussed. Norton & ICLR staff’s leadership on the development of a new CSA Guideline for Basement Flood Protection, which looks at the mandatory implementation of protective plumbing measures & other lot level measures in both new and existing infrastructure, including minimizing the development of I/I, was also showcased. As part of a longer-term research project, Norton is working with ICLR and some private insurers on a research project to find ways to cross reference engineering data (included flow monitoring), either owned privately by the municipality, or other public data not normally accessible to insurance companies, to help more accurately assign risk of flooding and help residents to mitigate flooding on their property where it is at higher risk. Barbara has spent her career focused on the Environmental Assessment, predesign, design and construction of a wide variety of municipal infrastructure, particularly sanitary sewers. She specializes in projects to identify and remove rainwater and groundwater (inflow and infiltration) from existing sanitary sewer systems. She has spent many years in the field, inspecting new and existing sanitary sewer installations, private property and basement plumbing and installation, and has undertaken confined space entry of thousands of manholes and large sewers. Her clients include the Township of Woolwich, Region of York, Region of Peel, City of Windsor, City of London, and a wide variety of private consultants.