What Can Fail a Septic Inspection
Short answer: A cracked or metal tank, a broken or obstructed pipe, an uneven distribution box, and a malfunctioning pump chamber are common, sometimes repairable, reasons a system fails inspection. A failed drainfield or cesspool generally can't be patched and needs to be replaced.
Issues that can sometimes be fixed and re-passed
Massachusetts's Title 5 program, one of the more detailed state inspection frameworks, lists specific components that can qualify for a conditional pass: a metal or cracked septic tank, a broken or obstructed pipe, an uneven distribution box, and a malfunctioning pump chamber. Once the specific component is repaired or replaced and the local health authority signs off, the system can pass.
Soil absorption systems and cesspools generally cannot be repaired under this kind of conditional pass; if those fail, the system typically needs to be upgraded or replaced rather than patched.
The bigger picture
Beyond specific component failures, an inspector is checking whether the system, as a whole, can currently protect public health and the environment. Backups, sewage odors, or standing effluent near the tank or drainfield are signs an inspector will flag regardless of which specific state's checklist they're using.
A failed inspection isn't necessarily a deal-breaker in a home sale; it's more commonly a negotiating point. Buyer and seller can agree on who repairs or replaces the failed component and when, and in many states the seller still has an ongoing legal obligation to fix a failed system whether or not the sale goes through.
What to do if your system fails
Get a written report from the inspector detailing exactly what failed and why. That report is what a licensed installer will use to scope the repair, and what your local health authority will want to see before approving the fix. Don't rely on a verbal summary alone.
Sources
- Mass.gov: Buying or Selling Property with a Septic System
- US EPA: Resolving Septic System Malfunctions
Checked July 2026.