Inflow Removal Program

What is the Inflow Removal Program?

What is Its Purpose?

Why is it important?


The City is completing a 30-year program to separate its combined sewer system. This is required to prevent combined sewage overflows into the Grand and Red Cedar Rivers. Once the system has separate sanitary and storm sewers, all stormwater will need to be directed to storm sewers or basement backups could occur. Believe it or not, a single downspout illegally connected to the City’s sanitary sewer can lead to a basement backup at a nearby home! Each property owner is responsible for making sure that all sources of water from their property are routed correctly.

Related Documents


Typical Inflow Diagram (PDF)
Inflow Informational Brochure (PDF)