A septic inspection report delivers one of three overall ratings, Pass, Conditional Pass, or Fail, followed by component-by-component findings on the tank, baffles, effluent filter, distribution box, and leach field. Each section tells you what was found, what it means, and what action is required.

Seven early warning signs indicate a failing septic system: unusually lush or soggy grass over the drainfield, gurgling drains throughout the house, sewage odours inside or outside, contaminated well water, more frequent pump-outs than normal, unexplained mould or moisture indoors, and backups triggered by heavy water use.