Case Study
Naperville I&I Project
Project Background Naperville, IL has grown from 20,000 to over 100,000 people in less than 30 years, putting a tremendous burden on the wastewater collection system. Inflow and Infiltration (I&I) was a constant concern with all the new connections made annually. In the late 1980’s Naperville embarked on a unique sewer program to monitor inflow and infiltration (I&I) utilizing long-term flow and rainfall monitoring. As part of the study, o