1. Example of ground water infiltration to sewer main through a failing joint seal. This is one the types of unwanted water infiltration to sewer mains that increases sewage flows and treatment costs. The goal of the Authority’s long-term Infiltration and Inflow mitigation program is to identify and correct these costly conditions.

2. A technician working for the Authority’s contractor, Flow Assessment Services, calibrates a flow monitor that has just been installed.

3. A Flow Assessment Services team prepares to install a flow monitor in a sewer main.

4. Flow monitors installed in sewer mains.