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Water Quality

Sealing Unused Wells

Unused or abandoned wells are a potential threat to health, safety and the environment.  These wells are often sealed to reduce these risks. The State of Minnesota has required that abandoned or unused well be sealed by a State of Minnesota licensed well contractor.

Sealing is the process of clearing debris from the well and filling it with grout. Don’t try to do it yourself. A licensed well contractor has the necessary equipment and expertise to properly seal unused wells. The well contractor will complete all the necessary paperwork including permits. The contractor gives the well owner a Well and Boring Sealing Record that is a legal document for the sealing of the well.

When a well is not being used, it must be brought back into use, sealed, or annually permitted as an unused well.  Under Minnesota State law, a seller failing to properly disclose a well is liable for well sealing costs for up to six years after the date of the sale.

A well must be sealed if it meets any of the following conditions:

  • Is not in use
  • Is contaminated
  • Was improperly sealed in the past
  • Threatens the quality of the groundwater
  • Poses a health or safety threat


Well Sealing Grant Program
Property owners in Dakota County may be eligible for a grant to help pay the cost of sealing their well.

Successful applicants will receive up to 50 percent of the total well sealing cost, up to a maximum payment of $2000. To apply, the well owner must submit a completed application and two bids from different licensed well contractors.

Funding is limited and not everyone applying for a grant will be successful. 

For more information, call Vanessa Demuth at 952-891-7010. Read more information in the well seal packet and fill out an application

Last updated: 7/14/2014 9:29 AM