Inflow and Infiltration

The City of Saint Anthony Village has a "point-of-sale" requirement for the Inflow & Infiltration Reduction Program. An I&I inspection must be completed prior to the sale of any property (sale of individual condominiums are exempt from this requirement). 

The I&I inspections are also required as part of our rental licensing program.
Link to Ordinance: City Code 2022-09 Inflow & Infiltration

Inflow and Infiltration (I/I) is the excUnderground Sewer line diagramess flow of clear water into the City's sanitary sewer system.

  • Inflow is when clear water from illegal connections of sump pumps, downspouts, and foundation drains is channeled directly into sanitary sewer pipes.
  • Infiltration is when groundwater seeps into sewer pipes via cracks or leaky joints.

Because the sanitary sewer system was not designed to handle this excess clear water, it becomes overloaded during times of high groundwater or heavy rainfall. This can cause basement flooding or bypassing of raw wastewater to local streams and lakes.

The Point of Sale ordinance is intended to help reduce peak sanitary sewer flows caused by Inflow and Infiltration. The excess clear water from I/I problems uses sanitary sewer capacity needed for wastewater and the result is sewer backups and increased costs for needlessly putting clear water through the wastewater treatment process. 

Saint Anthony Village was identified as a contributor of excess I/I and is working with the Metropolitan Council Environmental Services to resolve the problem.

Inflow and Ifiltration Grant Button
  1. Jeremy Gumke

    Public Works Director

  2. Minette Saulog

    Sustainability Coordinator