Ten years ago, Stoney Creek Sanitary District embarked on a course to sharply reduce the inflow and infiltration of groundwater into its sewer collections system. Everyone believed it wouldn’t be a quick fix. Everyone was right.
“When we bought the equipment and started relining our sewer system, we knew this would probably be a 15- to 20-year project,” says Stad Hirsh, the district’s maintenance and construction supervisor. A decade later, the I&I problem has been...