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City of New HopeMinnesota

Inflow and Infiltration

New Hope has been working to reduce the inflow and infiltration, or I/I, of stormwater into the sanitary sewer system for several years. These efforts include lining more than 10 miles of sanitary sewer pipes, residential sump pump inspections, and other measures.

The city needs to reduce I/I, as the Metropolitan Council treats all sewage and water entering the sanitary sewer system. Stopping I/I at the source:

  • Protects public and environmental health by preventing sewage overflows to basements and waterways.
  • Allows our economy to grow and prosper without the cost associated with building larger infrastructure.
  • Saves money by reducing the amount of water that needs to be transported and treated.

 

The MCES (Metropolitan Council Environmental Services) references that up to 80% of all inflow and infiltration issues result from private property issues. The city is currently undergoing a targeted study to see what street and infrastructure improvements can reduce the I/I on residential streets. More information about the study may be found here

The MCES has many helpful resources for homeowners available on their website: https://metrocouncil.org/iandi

 

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