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Site supervisor reviewing shift log with operator on a Ghana site

Field capture · Cross-vertical

When billed hours or quantities are questioned, make the record easy to check.

Published 28 May 2026Updated 26 September 20263 min read
Theo Ilori

Published by Darikoda Systems Ltd

Written by Theo Ilori

Founder. UCL MSc Mechanical Engineering.

Connect hours, fuel and measured work to the people, readings and photos behind them. Give your commercial team a clear record to use when the client queries a charge.

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A quantity surveyor, often shortened to QS, checks the quantities and value of work claimed. When the client's count differs from yours, the site record gives your commercial team something specific to review.

The same problem appears in billed machine hours, supplied fuel and measured construction work. Keep the agreed basis of the charge connected to what happened on site, the supporting details and the review that followed.

Three examples of records worth keeping

Machine hours

Record the machine, operator, shift and opening and closing hour-meter readings. Connect working and standby periods to the activity and relevant instruction so the office can explain the hours billed.

Fuel supplied

Record each issue against the receiving machine, quantity, time and person confirming it. Keep queried quantities attached to the original entry so they can be checked during reconciliation.

Measured work

Site professional reviewing work beside civil engineering structures
Connect the quantity to the work area, date and supporting record.

Record the work item, location or chainage, measurement and date. Attach the photos and instructions needed to understand the entry. Keep the result of any joint review alongside your original measurement.

Work through a difference before it reaches the final claim

Take an illustrative drainage section where the subcontractor records 412 metres and the joint review records 388 metres. The 24-metre difference needs locating. Compare chainage start and end points, work items, dates and the scope included in each measurement. One total could include a branch or an unfinished section that the other excludes. (Illustrative model, your number from the audit.)

Keep the original measurement alongside the review result. If the teams agree a correction, record the reason and person confirming it. If they disagree, identify the exact item still open and the evidence needed next. This gives the commercial team a defined question to resolve rather than two competing project totals.

Use the same approach for machine hours. A ten-hour shift and eight billable hours can both be correct if the hire terms treat standby or breaks differently. Keep the hour-meter readings, work record and agreed charging basis together before deciding that one entry is wrong.

Give the QS a record that follows the claim

  • Identify the contract, work item and reporting period.
  • Show the original quantity and how it was measured.
  • Connect the relevant instruction, photos and review notes.
  • Separate the quantity submitted, the quantity agreed and the amount certified.
  • Record the next action for each unresolved item and who owns it.

A field entry, a submitted claim and a certified payment are different stages. The record becomes more useful when the office can see which stage an item has reached and why it changed. That helps prevent a queried item disappearing between one payment application and the next.

Make the record easy for someone else to check

  • Identify the machine, work item or material.
  • Name the person and shift involved.
  • Record the time and work area.
  • Attach relevant readings, photos and instructions.
  • Keep the review, queries and corrections connected.
Site professional using a tablet
Capture the details while the people involved can still explain them.

Recording during the work reduces the need to reconstruct events later. It also lets the supervisor resolve missing details before the commercial team prepares the claim.

Small differences add up

Six queried hours per machine each month, across eight machines at USD 130 per hour, represents USD 74,880 over twelve months. Use your actual queried hours and rates to assess the value worth checking. (Illustrative model, your number from the audit.)

For road contracts, the Big Push payment-record guide connects section measurements, interim payment certificates and delay records. Follow the agreed measurement and notice process for the contract while keeping the underlying events easy to find.

Review the record behind a disputed charge

Use the free 30-minute audit to walk through one billed hour, fuel issue or measured quantity. Leave with a one-page map of the gaps and practical next steps for your team.

Operating recordField captureQS measurementCross-vertical

Want this analysis applied to your own operation?

30 minutes on WhatsApp. You walk away with a one-page leakage map specific to your fleet.

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Operating Guides draw on extensive field audits and industry research across Ghana's mining, construction, roadworks, and quarry sectors. No specific operator is named or identifiable. External sources are cited inline where regulatory or commercial reference is made.

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