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Selling a Home With a Well or Septic: Disclosures and Timing
Updated: 2 days ago
If your home is on a well, a septic system, or both, your sale will have a few more moving parts than a home on city services. Selling a home with a well or septic in SLO County is not a problem.
A large share of the homes we sell across San Luis Obispo County, from the Nipomo Mesa to Creston to the hills above Cambria, rely on private water and wastewater systems. Buyers here understand them. What matters is that you understand what those buyers will ask for, and that you get ahead of it.
TWO QUESTIONS BUYERS ASK
Why these systems get so much attention
A buyer purchasing a home on city water and sewer is trusting a public utility. A buyer purchasing a home on a well and septic is trusting your specific systems, which they cannot see, and which can be expensive to replace. Lenders and insurers care too. So the buyer's due diligence naturally focuses on two questions: does the well produce enough good water, and does the septic system work and have life left in it.
The good news is that these are answerable questions. The sellers who have trouble are the ones who leave the answers to the buyer to discover.
KNOWN MATERIAL FACTS
Disclosures: what you are required to share
California requires sellers to disclose all known material facts about the property, and well and septic conditions are squarely in that category. In practical terms, this means you should be prepared to disclose:
The type and age of the well and pump, if known
Any history of low production, dry periods, or pump failures
Water quality issues you are aware of, including past test results
Whether the well is shared with other properties, and any agreements governing it
The type, age, and location of the septic system
Pumping history and any repairs or failures
Any known issues with the leach field, such as wet spots or slow drains
Permits and inspection records for either system
You are not required to know things you genuinely do not know. You are required to share what you do. Our broader post on what Central Coast sellers must disclose explains how the disclosure process works overall.
FLOW TEST · WATER QUALITY · PUMP AND TANK · SEPTIC
What buyers will ask for
Expect a buyer in SLO County to request, as part of their inspection contingency, some or all of the following:
A well flow test. A technician measures how many gallons per minute the well produces over a sustained period. Buyers, and sometimes lenders, want to see that the well can support a household. Results vary widely by location; wells on the Nipomo Mesa, in Edna Valley, and in various parts of North County behave very differently, and what counts as adequate depends on the property.
A water quality test. A sample is sent to a lab and checked for bacteria, nitrates, and other common concerns. Some lenders require this for financing.
A well equipment inspection. The pump, pressure tank, and related equipment are evaluated for age and condition.
A septic inspection. An inspector locates and opens the tank, checks the levels and baffles, evaluates the leach field, and often runs a load test. In many cases the tank is pumped at the same time.
Our posts written for buyers, on buying a home with a well and buying a home on septic, lay out exactly what the other side of your transaction is thinking about.
INSPECT BEFORE YOU LIST
The timing question: before or during escrow?
This is the decision we spend the most time on with rural sellers, and our general advice is to do it before.
Ordering your own well and septic inspections before listing has several advantages:
You learn about problems on your timeline, not the buyer's
You can make repairs and price the home accordingly, rather than negotiating credits under pressure
Buyers see a seller who is organized and confident, which supports your price
You can share the reports up front, which shortens the buyer's contingency period and keeps escrow moving
The counterargument is cost and the possibility of discovering something you would rather not know. Our view is that the buyer's inspector will find it anyway, and finding it first is always cheaper in the end.
A well and septic report in the disclosure package is one of the most reassuring things a rural buyer can see.
If you choose to wait and let the buyer inspect during escrow, be prepared for the results to become a negotiation point. Build extra time into your expectations, because scheduling a septic inspection and a pumping truck can take longer in busy seasons.
LOWEST FLOW IN LATE SUMMER
Seasonal considerations
Wells and septic systems behave differently across the year, and timing your inspection matters.
Well production is often at its lowest in late summer and early fall after months without rain. A flow test in September gives a conservative picture that a buyer will trust. A test in March after a wet winter may show a stronger number that does not hold up, and a savvy buyer will ask about it.
Septic systems are easiest to inspect in dry conditions. After heavy winter rains, a saturated leach field can produce a misleadingly poor result. If you are listing in winter, we may suggest scheduling the inspection during a dry stretch.
WRITTEN AGREEMENTS
Shared wells and agreements
If your well serves more than one property, the buyer will want to see the shared well agreement, which should spell out maintenance responsibilities, cost sharing, and access rights. If no written agreement exists, that is worth addressing before listing, because lenders often require one. Our post on easements, shared wells, and private roads covers the issues in more detail.
THE WELLHEAD · THE TANK LIDS · THE PUMP EQUIPMENT
Presenting the systems well
Beyond the paperwork, a few physical steps help.
Make the wellhead accessible and tidy. Clear brush and debris around it.
Mark the septic tank lids so the inspector can find them without digging.
Make sure the pressure tank and pump equipment are in a clean, accessible location.
If there is a water treatment system, have the filter and maintenance records available.
Do not run irrigation heavily right before a flow test; the buyer's technician may notice.
REPAIR BEFORE LISTING · PRICE FOR IT · OFFER A CREDIT
Pricing and negotiation
If your systems are in good shape and documented, they support your asking price and reduce the chance of a mid-escrow renegotiation. If they have issues, you have choices: repair before listing, price the home to reflect the condition, or offer a credit. We will walk through those options with you based on the reports. What we discourage is hoping the buyer does not look closely, because rural buyers in SLO County almost always do.
Getting organized
If you are thinking about selling a home on a well or septic, start by pulling together every record you have, then let us help you decide whether to order inspections before listing. For a picture of the whole process, our step-by-step guide to selling a home in SLO County shows where these steps fit. A property with well-documented systems is a property that sells with fewer surprises, and that is the outcome we want for you.
Talk With Kim & Kristen
We are Kim San Jule and Kristen Gentry, Broker Associates with Real Broker, serving San Luis Obispo County and the Central Coast. Whether you are buying, selling, or simply thinking ahead, we are glad to be a resource.
Kim San Jule · Broker Associate, DRE 01948144 · 805-345-8303 · kimsanjule@gmail.com
Kristen Gentry · Broker Associate, DRE 01968754 · 805-441-4618 · kristengentryslo@gmail.com
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