Drainage screening, not a certificate: an estimate from elevation models and utility maps of whether stormwater can fall to the street, whether an easement over a neighbour may be needed, and whether a mapped main crosses the lot.
Try sample locations:
•
•
Reading the elevation model and any published sewer mains…
?
Screening result
Topographic & Hydraulic Fall
Street Frontage Level—
Rear Boundary Level—
Fall Direction to Street—
Slope Gradient—
Discharge Feasibility—
Utility Servicing & Pipes
Water & Sewer Authority—
Sewer Main Distance—
Pipe Encroachment—
Lot Traversal Length—
Exclusion Setback Buffer—
Hydraulic Cross-Section Profile (Frontage to Rear)Exaggerated Vertical Scale
Not a certificate. This screening reads the ground's fall from an elevation model and, where the water authority publishes it, the sewer mains near the lot. It is a desk check before an auction or exchange. It does not replace a contour survey, a surveyor's boundary peg-out, a council planning certificate or a Before You Dig Australia (BYDA) enquiry.