Requirements When Buying or Selling Property

St. Louis County Subsurface Sewage Treatment System (SSTS) Ordinance 61 requires that prior to the sale, transfer, contract for deed, or any other conveyance of land upon which a dwelling is located, or a tract of land upon which a structure that is required to have an SSTS occurs, the following must be met:

  • A valid Certificate of Compliance for a new/replacement system is on file and had been issued within the last 10 years, or
  • A Certificate of Compliance Existing System or a Notice of Non-Conforming had been issued within the last three (3) years.
  • If an inspection of the existing system identifies the system as Non-Compliant a Notice of Non-Compliance is issued. The system must be replaced within 12 months for shoreland property and 24 months for non-shoreland property.
  • If the replacement of a Non-Compliant system does not occur prior to closing the responsible party is required to receive an estimate from a licensed MPCA contractor for the replacement of the system. St. Louis County requires that 100% of the replacement costs be held in an escrow account at the time of closing along with a completed Septic System Disclosure/Transfer Agreement, or
  • When a winter sale occurs a Transfer agreement, estimate from a licensed septic contractor for the replacement of the system along with 100% escrow be held at the time of closing;
    A compliance inspection is still a requirement when conditions allow.
  • The same applies to a septic system identified as an Imminent Threat to Public Health (ITPH);
    replacement/correction of an ITPH has a different time limits (contact the Onsite Wastewater Division for more information).
  • A full list of exemptions can be found in the St. Louis County SSTS Ordinance 61.

Contact Us

On-Site Wastewater

Virginia Office

Fax: 218-749-7194

Duluth Office
Fax: 218-725-5029


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