In a typical Medford-area home sale, the septic system gets less attention than the roof or furnace until something goes wrong with the timeline. Unlike a roof, a septic system is mostly underground, and many sellers have never seen their own drainfield. Planning the evaluation early, and knowing what the paperwork asks for, prevents last-minute surprises.
What Oregon's forms ask
Oregon's statutory seller property disclosure form (ORS 105.464) includes a sewage system section. It asks whether the property is connected to public sewer or an onsite septic system, whether the septic system was installed by permit, whether it has been repaired or altered, whether its condition has been evaluated and a report issued, and whether and when the tank has been pumped. Sellers who can answer those questions with documents make buyers more comfortable.
Many Oregon transactions also use the Oregon Real Estate Forms septic/onsite sewage system addendum (OREF 081). The published sample states that inspections of onsite sewage systems must be performed by a DEQ-certified professional, that a property may have more than one onsite system, that parts of a system may not be on the property they serve, and that DEQ may require abandoned systems to be decommissioned. It also sets out a negotiation period after the reports are delivered, during which buyer and seller can agree how deficiencies will be handled, and gives the buyer a route to terminate if they cannot agree. Your agent controls the specific deadlines, so ask them early.
What a pre-sale evaluation usually covers
- Records review. For Jackson County, Josephine County and Curry County, DEQ maintains septic records searchable by parcel number. Records can show the permitted design, tank size, drainfield layout and any repair permits.
- Locating components. Tank, distribution box or pump chamber, and the drainfield area.
- Pumping and tank inspection. Most evaluations involve pumping so the tank walls, baffles and inlet/outlet can be seen. Coordinate so the tank is not pumped twice.
- Hydraulic and component checks. Watching how the system takes water, checking pumps, floats and alarms where present.
- Drainfield observation for surfacing effluent, saturation or other signs of failure.
- A written report that can be attached to the transaction file.
Tips for sellers
Gather pumping receipts and any service contract paperwork. If your system is an ATT, sand filter or pressure distribution system, have your maintenance provider's latest report ready, since DEQ requires service contracts for certain system types. Clear access to lids before the inspector arrives. If you know of a past problem, disclose it; an inspection report will usually reveal it anyway.
Tips for buyers
Ask for the DEQ records yourself rather than relying on a summary. Compare the permitted bedroom count to the house as it exists now; additions sometimes outpace the original design. Ask where the replacement drainfield area is, if one was set aside. If the report finds deficiencies, ask for written repair estimates before the negotiation window closes. And remember that rural properties may also have a well, which is a separate inspection.
Scheduling
Escrow timelines can be short. Inspection slots, pumping and any digging to find buried lids all take time, and winter rain can make drainfield assessment slower. Book as soon as the addendum is signed. Use our free quote form with the property address, closing date, and whether you represent the buyer or the seller.
This page is general information, not legal advice. Confirm deadlines with your real estate agent and requirements with Oregon DEQ.
Related guides
Buyers should also read our step-by-step guide to buying a home with septic in Jackson County, and sellers can use the records guide to pull the DEQ file before listing so there are no surprises.