Septic systems

Septic systems in most Hennepin County cities are regulated by the county. 

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Cities with their own septic system program

Residents of these cities should contact them directly for septic system questions 

Dayton: 763-427-4589

Eden Prairie: 952-949-8300

Hanover: 763-497-3777

Hopkins: 952-935-8474

Independence: 763-479-0527

Loretto: 763-479-4305

Medina: 763-473-4643

New Hope: 763-531-5100

Orono: 952-249-4600

Richfield: 612-861-9700

St. Louis Park: 952-924-2500

Woodland: 952-474-4755

 

Residents of these cities should contact Hennepin County for septic system questions

Bloomington

Brooklyn Center

Brooklyn Park

Champlin

Corcoran

Crystal

Deephaven

Edina

Excelsior

Golden Valley

Greenfield

Greenwood

Long Lake

Maple Grove

Maple Plain

Medicine Lake

Minneapolis

Minneapolis-St. Paul International Airport

Minnetonka

Minnetonka Beach

Minnetrista

Mound

Osseo

Plymouth

Robbinsdale

Rockford

Rogers

Shorewood

St. Anthony

St. Bonifacius

Spring Park

Tonka Bay

Wayzata

Printable map

Hennepin County septic system map (PDF)

Abandonment of a septic system

Properly disposing of a septic tank (abandonment)

Criteria for a Hennepin County abandonment

  1. The abandonment has no new construction (stand-alone abandonment)
  2. Septic systems in your city are regulated by the county

Inspections and required steps

We typically don’t do an on-site inspection if you follow these steps:

1. Along with payment, submit a septic abandonment permit application (PDF)

2. Once you receive a permit:

  • Have the tank pumped using a licensed pumper/maintainer
  • Take photos of the tank either crushed, filled with rock, or removed
  • Complete the abandonment reporting form

3. Within 90 days of completing step 2, email these documents:

  • Invoice from licensed pumper/maintainer showing they pumped the tank before abandonment
  • Photos of the tank either crushed, filled with rock, or removed
  • Completed abandonment reporting form

Email documents to epi-envhlth@hennepin.us and terry.hamal@hennepin.us.

Questions

Contact Patrick Kuisle at patrick.kuisle@hennepin.us or 612-543-5214.

Selling a property

To sell your home you don’t need a county inspection of your septic system.

By state law you must properly disclose to the buyer information about the septic system. A well-informed buyer will want a thorough inspection.

Many lenders require a compliance inspection before they issue a mortgage.

Ordinance summary

Selling your home

To sell your home you don’t need a county inspection of your septic system. By state law you must properly disclose to the buyer information about the septic system. A well-informed buyer will want a thorough inspection. Many lenders require a compliance inspection before they issue a mortgage.

County inspections

Systems the county inspects 

  • New septic systems
  • Repairs on current septic systems
  • Current septic systems under investigation because of a complaint
  • The county doesn’t inspect current septic systems unless they’re under repair or under investigation 

Certificates of compliance

  • Current systems: valid for 3 years (unless an imminent health threat)
  • New systems: valid for 5 years (unless an imminent health threat)

Notice of noncompliance

  • 3 years to upgrade (unless an imminent health threat)
An imminent health threat means sewage surfaces to the ground, backs into the home, or reaches surface or groundwater.

Building permits

Subject to either septic permit approval or compliance inspection:

  • All building permits for new commercial or new residential structures
  • Any permits for bedroom(s) additions, any additions or remodeling of commercial facilities where water use will increase
  • Any permits within designated shoreland areas
  • Any permits within designated wellhead protection areas

Older septic systems

Septic systems built before January 23, 1996 are compliant if they meet two criteria:

  1. Two feet of soil separation is provided
  2. It is not classified as an imminent health threat. This means sewage surfaces to the ground, backs into the home, or reaches surface or groundwater.

This provision excludes: 

  • Shoreland areas
  • Food, beverage, and lodging facilities
  • Wellhead protection areas
  • New construction

Wetland requirement

Septic systems must have a general setback of 50 feet from a wetland.

Warrantied systems

Warrantied systems are not allowed. See warrantied systems under MN Statutes Chapter 115.55.

Septic system information 

Individual Sewage Treatment Systems MN Rule 7080 

Minnesota Pollution Control Agency

University of Minnesota Extension Service - Septic

U.S. Environmental Protection Agency

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