Has anybody inspected an absorption field with a large tree within 15 feet of it and how did you report it?
If more than 10 feet away from any component, then no need to report it, per InterNACHI septic training"
“Observation of Site’s Condition
Look for and report any trees, large shrubs or other plants with extensive root systems growing over or within 10 feet of any component of the system. You should inform your client that large roots might crack, offset or otherwise intrude and damage components. Vegetation can create a negative impact on the system.”