Inflow and Infiltration

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The City of West St. Paul has a "point-of-sale" requirement for the Inflow & Infiltration Reduction Program. This means that an I&I inspection must be completed prior to the sale of a property.

I&I Inspection Process

  • Call or Click to schedule a FREE I&I inspection
  • A contractor working for the city will video the sewer with a CCTV camera
  • A contractor working for the city will note if sump system is installed
  • The city inspector will review the video for compliance or non-compliance

If Compliant

  • The city inspector issues a compliance letter. It's good for 10 years.

If Non-Compliant

  • City inspector sends out report & correction notice
    • Review the Sewer Repair Contractors list
      • Please be aware that the city has no control over what the contractors are charging for their services
    • Once all documented repairs are completed
    • Review Repair Funding Programs
    • Submit the PAID invoice to the city inspector for 15% reimbursement
    • Sign paperwork for assessment (if applicable)
    • City Council approval is required
    • The city inspector issues a compliance letter. If the sewer was lined or replaced with new material for its entire length, no further inspections are required by the city for 25 years. If just a portion of the sewer was repaired (a spot repair) or no repair was required, no further inspections are required by the city for 10 years.

Compliance Letter Map

Site addresses are updated weekly

The League of Minnesota Cities awarded West St. Paul the City of Excellence Award for its Inflow & Infiltration program!

Related Links

EPA Clean Water Act
Metropolitan Council I&I

Other Cities with I&I Programs

Inflow and Infiltration is not unique to West St. Paul or even Minnesota. Many communities around the country have I&I programs. Below are some examples.
City of Foley, MN
City of Golden Valley, MN
City of Roseville, MN
City of Duluth, MN

City of Dubuque, IA
City of Ashland, WI
City of Columbia, MO

I&I Phone Line

651-259-2622

I&I Email

UPermits@wspmn.gov 

Schedule Button

Or schedule by calling 651-259-2622