Selling a Home With a Failing or Noncompliant Septic in Minnesota
A notice of noncompliance is a problem to manage, not a dead sale — but the playbook is completely different in Dakota County than in Scott County, and confusing the two is how closings blow up. Here is each county’s path, plus the disclosure duty that applies in both.
First, know what “failing” actually means
There is a difference between an old system and a noncompliant one. Noncompliance is a formal finding by an MPCA-certified inspector, issued as a notice of noncompliance: the system is discharging sewage to the surface or groundwater, the tank is not watertight, or the system lacks the vertical separation from groundwater that Minnesota rules require. A system can earn the notice while every toilet in the house still flushes. If you do not have that document yet — you have smells, wet spots, or a bad feeling — start with our septic smell guide and a proper compliance inspection, because everything below runs off the inspector’s paperwork.
The Dakota County path: Ordinance 113
Dakota County removes the first question entirely. Under Ordinance 113 § 9.02, a compliance inspection is required for the transfer or sale of every property served by a septic system — however the home is sold. If the system passes, the seller provides a certificate of compliance (generally valid three years for an existing system, five for a new one) and the septic file closes for that transaction.
If it fails, there are three standard paths, and most failed Dakota County systems travel one of them:
1. Fix it before closing
Repair or replace the system, get it certified, and hand the buyer a clean certificate. This is the cleanest path and the slowest — design, county permit, installation, and inspection all have to fit inside your marketing window, which is why sellers who suspect a failure should inspect before listing, not after the offer.
2. Adjust the deal
The price absorbs the work: the buyer takes the project by agreement, usually with a credit, and completes it after closing. This works when the buyer and their lender accept it — and in Dakota County it still has to satisfy the ordinance’s security requirement below.
3. Escrow: the closing proceeds, the obligation remains
When the seller cannot provide a certificate by transfer, Ordinance 113 requires the seller to provide the buyer sufficient security in the form of an escrow agreement to assure installation of a complying system. Note what the ordinance does and does not say: it requires security that is sufficient, but it fixes no percentage. In Minnesota closing practice, that security is commonly set at 125% of a licensed installer’s written estimate for the complying system, or 110% of a signed contract price. Treat 125% as the planning number, and confirm the amount and the escrow holder — typically a licensed closer, attorney, or financial institution — with your closing team. Funds release as the complying system is installed and certified.
The clocks behind the negotiation
A notice of noncompliance starts deadlines: a system determined not to be protective of groundwater must be upgraded, repaired, replaced, or abandoned within 10 months of the owner receiving the notice, and an imminent threat to public health or safety within 30 days. Those windows are usually the real reason a sale escrows — the work legitimately cannot finish before closing, so the money waits instead. Our Dakota County compliance guide covers the ordinance in full, and the closing checklist turns it into a document list.
The Scott County path: no sale trigger, but no free pass either
Scott County’s Ordinance No. 4 does not list a sale by itself as a compliance inspection trigger. Its § 7.03 triggers are things like permits and variances, additions, changes of use, and land splits or subdivisions. A Scott County seller can therefore close without a county-ordered inspection — and many do.
Three qualifications keep that from being the shortcut it sounds like:
- Disclosure is mandatory anyway (next section) — a known failure must be disclosed in writing, and an undisclosed one can make the seller liable for the cost of bringing the system into compliance.
- Buyers and lenders ask. Purchase agreements in septic country commonly require a compliance inspection contractually, whatever the county requires. Expect the question even when the ordinance doesn’t force it.
- An existing notice still runs. If the system already carries a notice of noncompliance from an earlier trigger, Scott County’s repair schedule — based on groundwater susceptibility — applies with its own deadlines, sale or no sale.
The strategic move for a Scott County seller who suspects trouble is a pre-listing inspection: it converts an unknown that buyers will price at worst-case into a documented fact with a written estimate attached. Our replacement page explains how that estimate is built.
The duty that applies in both counties: Minn. Stat. § 115.55
Separate from any inspection, Minnesota law (Minnesota Statutes § 115.55) requires every seller to disclose, in writing, how the property’s sewage is managed: describe the system and its location, state what the seller knows about its compliance status, and attach any inspection report the seller has. A seller who fails to disclose can be liable for the cost of bringing the system into compliance.
Keep the two documents straight, because closers do: the disclosure is the seller’s statement of knowledge; the inspection is a certified professional’s determination. One never substitutes for the other, and “the seller said it worked fine” is not a certificate.
The sequence that works
- Inspect early. Ideally before listing. A certificate in hand is a selling asset; a notice in hand is a plan. A surprise at the purchase agreement is a crisis.
- Get a written estimate. A licensed installer’s written number is what credits and escrows are built on — 125% of an estimate cannot be calculated from a verbal guess.
- Pick the path with your agent and closer. Fix, credit, or escrow — and paper it properly, with the escrow agreement naming the holder, the amount, who performs the work, the deadline, and how funds release.
Buying instead? Read the certificate’s date (existing-system certificates are generally valid three years), ask exactly what any escrow covers and which correction deadline is running, and get the seller’s pumping and inspection records — the maintenance history tells you what the inspection cannot.
This page summarizes Dakota County Ordinance 113, Scott County Ordinance No. 4, and Minn. Stat. § 115.55 in plain language for planning. It is not legal advice; your closer or attorney and the county environmental office are the final word for a specific transaction. Last updated: October 2026.
Questions about selling with a failing septic
Can I sell my home as-is with a failed septic in Dakota County?
You can sell the home, but you cannot skip the ordinance. Ordinance 113 requires the compliance inspection at transfer regardless of how the home is marketed, and if no certificate can be provided by transfer, the seller must give the buyer escrow security so a complying system is guaranteed. As-is language changes who does the work and how it is paid for — it does not remove the inspection or the escrow requirement.
Who pays for the escrow, and when is it released?
The escrow is funded from the seller’s side of the transaction, in the amount the escrow agreement specifies. Funds are released as the complying system is installed and certified, and any remaining balance is handled according to the agreement’s terms. Confirm the holder — typically a licensed closer, attorney, or financial institution — with your closing team.
How long do I have to fix a system after a notice of noncompliance in Dakota County?
A system determined not to be protective of groundwater must be upgraded, repaired, replaced, or abandoned within 10 months of the owner receiving the notice. An imminent threat to public health or safety carries a 30-day deadline. In a sale, those clocks shape the negotiation and the escrow — they are usually why the work is escrowed rather than finished before closing.
Do I need an inspection to sell in Scott County if nobody asks for one?
Scott County’s Ordinance No. 4 does not list a sale by itself as a compliance inspection trigger — its triggers are permits and variances, additions, changes of use, and land splits or subdivisions. But Minnesota’s disclosure law applies to every sale, buyers and lenders commonly require an inspection in the purchase agreement anyway, and a pre-listing inspection converts an unknown into a priced fact.
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