Determining the Root Cause and Quantifying Inflow & Infiltration (I&I) – Part 3

Part 1 of this series on tackling inflow and infiltration (I&I) challenges covered methods to identify I&I root causes and reduce their impact on wastewater systems. Part 2 explored field investigation strategies, including sewer camera inspections and flow monitoring to locate specific I&I sources. Part 3 will focus on quantifying I&I contributions and exploring practical […]
Investigation Methodology for Determining the Root Cause of Inflow & Infiltration (I&I) – Part 2

Identifying and mitigating inflow and infiltration (I&I) in our aging wastewater systems is one of the most pressing challenges facing civil engineers, municipalities, and land developers today. With excess stormwater and groundwater finding its way into sanitary sewer systems, the consequences can range from increased treatment costs to environmental hazards and basement flooding. In Part […]
Investigation Methodology for Determining the Root Cause of Inflow & Infiltration (I&I) – Part 1

Introduction to Investigation Methodology The effective management of inflow and infiltration (I&I) is a critical concern for civil engineers, land developers, and municipalities. Left unchecked, it can stress wastewater systems, increase treatment costs, and lead to flooding and environmental damage. Therefore, implementing a precise, data-driven methodology to identify and quantify I&I is essential. This blog […]
Case Study: Inflow and Infiltration and Wet Weather Flow Reduction of Pilot Areas (Part 3)

Parts 1 and 2 of this case study offered a detailed summary of wet weather inflow and infiltration (I/I) reduction pilot projects undertaken by Civica for the City of Toronto. Part 2 specifically delved into technical, financial, and SWOT analyses. Part 3 will address the project management strategy and sewer capacity analysis, concluding with recommendations […]
Case Study: Inflow and Infiltration and Wet Weather Flow Reduction of Pilot Areas (Part 2)

Part 1 of this case study provided an overview of inflow and infiltration (I/I) reduction projects completed by Civica for the City of Toronto in pilot areas Wirral Court and Area 9. Part 2 will delve deeper into strategic analyses, including technical, financial, and SWOT. Technical Analysis Performed for I/I and WWF Reduction Design Guidelines […]
Case Study: Inflow and Infiltration and Wet Weather Flow Reduction of Pilot Areas (Part 1)

Civica Infrastructure Inc. is a leading provider of wastewater management and monitoring services. With expertise in inflow and infiltration (I/I) reduction, we are a frequent collaborator of municipalities like the City of Toronto. Civica’s investigations of Toronto’s Wirral Court Pumping Station and Basement Flooding Area 9 pilot areas uncovered a need for private property-involved efforts […]
Case Study: Basement Flooding Area 9 Inflow and Infiltration Reduction

Civica Infrastructure Inc. collaborated with the City of Toronto on inflow and infiltration (I/I) reduction projects involving two pilot areas: Area 9 in Etobicoke and Wirral Court in Scarborough. When excess water enters the sewer system due to heavy rainfall or damaged pipes, the water levels can become too high for the system to handle, […]
Case Study: New Subdivision Inflow and Infiltration (I/I) Prevention in York Region

Civica Infrastructure Inc. is a leading provider of wastewater and stormwater management solutions throughout southern Ontario. Specializing in inflow and infiltration (I/I) prevention, we provide guidance to regional municipalities on how best to address any potential defects in collection and drainage systems. Civica won a Professional Engineers Award for one such project in 2021. Launched […]
Creating Wastewater System Capacity to Support Housing: Private-Side Inflow and Infiltration Reduction Success

Murari Raghavan (mraghavan@civi.ca), B.Tech, M.Sc., Civica Infrastructure Inc. Matthew Malone (mmalone@civi.ca), M.Sc., MBA, Civica Infrastructure Inc. Introduction The impacts of reduced sewer conveyance and treatment capacity in wastewater systems caused by Inflow and Infiltration (I&I), bring about problems including increased risk of basement flooding, restricted new urban development, increased wastewater operation and maintenance costs, and […]
Case Studies: Wet Weather Inspections to Find Inflow and Infiltration (I&I) – Part 2

The first part of this webinar delved into the diverse factors contributing to the problems of inflow and infiltration (I&I), inflow and infiltration methods, and onsite inspections, with a focus on field inspections conducted during wet weather conditions. This second part outlines some specific cases of wet weather inspections that Civica conducted. Case Study 1: […]