A verified number both parties can reference.
A $900 single-flight capture. A defensible volume figure with stated tolerance. An engineering-structured report that closes a payment meeting instead of extending it. Best fit for cut/fill, stockpiles, excavation, and grading payment decisions in Ontario and Québec.
Quantity-critical decisions where the number affects payment.
Cut & fill verification
Earthwork progress against design quantities. Monthly payment certification. Contract administrator review before invoice approval.
Stockpile inventory
Material quantities in aggregate yards, borrow pits, or staging areas. Reference volume for handover, billing, or year-end inventory.
Excavation verification
Placed vs. removed quantities for basement dig, utility trench, or site grading. Independent number to anchor the dispute conversation.
How every Volume Verification Report is structured.
Every deliverable follows the same 6-section engineering format. Here is what each section contains.
Cover & Identity
Project identifier, client name, capture date, report version, lead engineer signature. Traceability from page 1.
Executive Summary
One page. The verified volume, the ± tolerance, the boundary polygon, the bottom-line figure for the payment meeting.
Scope
Defined boundary polygon. Reference surface used. Assumptions documented. What the number includes and what it does not.
Methodology
Flight plan, altitude, overlap percentages, RTK correction source, NTRIP network, photogrammetry processing parameters, reference surface cross-check.
Findings
Zone-by-zone volume table. Cut/fill color map. Orthomosaic overview. DSM cross-section views where applicable.
Action & Accuracy Statement
Recommendation. RTK FIX confirmed. Stated horizontal accuracy. Contact for follow-up. Signed by the engineer.
Preview the deliverable structure.
A structural sample of a Volume Verification Report is available on request. Real client data is replaced with illustrative figures; the structure and terminology are exactly what you will receive.