Septic transfer of ownership inspections
Arizona requires an inspection before a home on septic is sold. Here's how it works and what the buyer files afterward.
Arizona is one of the states that ties septic inspections to home sales. ADEQ rule R18-9-A316 requires the seller of a property served by an on-site wastewater system to have it inspected before the transfer. A general home inspection doesn't take its place.
What does the rule require?
- Timing. The inspection has to be done within six months before the transfer date.
- Pumping. Each septic tank is pumped or serviced as part of the inspection, unless the system is new, the manufacturer says pumping isn't needed, or no floating or settled waste has built up.
- A written report. The inspector completes a Report of Inspection on an ADEQ-approved form describing the system's condition, any deficiencies and repairs, and whether the tank was pumped. The seller gives it to the buyer before closing.
- Notice of Transfer. The buyer, or escrow on the buyer's behalf, files it within 15 calendar days after the transfer. In Yavapai County, ADEQ's instructions say it goes through the county's online portal.
Who can inspect?
The inspector must have a training certificate recognized by ADEQ plus one qualifying credential. The rule lists Arizona-registered engineers and sanitarians, owners or employees of a licensed septage hauling vehicle, certified wastewater treatment plant operators, and certain Registrar of Contractors licenses, including C-41, B-4, A, A-12, L-41, KA and K-41. Ask the inspector which one they hold.
What if the inspection finds a problem?
The report describes what was found. Repairs, credits or price changes are between the buyer and seller, and repairs that need a permit go through the county. Book the inspection early in escrow so there's time to get repair quotes.
Old cesspools
ADEQ's Notice of Transfer instructions say cesspools can't be used for sewage disposal and can't be transferred with the standard form. If a listing mentions a cesspool, talk to the county early.
The septic company prices the job after learning about your system and, for repairs or new installs, seeing the site. We don't quote prices, and any figure given over the phone is only a rough starting point.
Where we connect you with help
Common questions
Who pays for the transfer inspection?
The rule puts the duty on the seller to have it done. Who actually pays can be negotiated in the purchase contract.
How long is the inspection good for?
The inspection must be within six months before the transfer date, so an older report won't satisfy the rule.
Related services
More background: Yavapai County septic guide.
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