TL;DR
Choosing the right survey company for mining comes down to four things: legal licensing for mine survey work in your state, demonstrable competency in GDA2020/MGA2020 and AHD datums, equipment fit for the tolerance you actually need, and a track record of mobilising to remote sites without blowing your schedule. This guide walks through how to assess each of those, what to ask before you sign, and the warning signs that separate a genuine specialist from a generalist who will cost you on day three of a shutdown.
Key takeaways
- In every Australian mining jurisdiction, statutory mine surveying must be signed off by an authorised mine surveyor — confirm the firm holds the right registration for WA, QLD, NSW or your state before anything else.
- Datum competency is non-negotiable: since the move to GDA2020 and MGA2020, mismatched datums between your firm and the survey provider can introduce errors of roughly 1.5–1.8 m. Confirm they work natively in your site grid and AHD.
- Match the instrument to the tolerance. A drone photogrammetry job (±30–50 mm) and a SAG mill trunnion alignment (±0.5 mm) are not the same service and rarely the same crew or equipment.
- For drone and UAV work, the firm must hold a current CASA Part 101 ReOC and individual remote pilot licences — ask for the certificate numbers, not just a verbal assurance.
- Remote mobilisation is where most cost overruns hide. A firm experienced in Pilbara, Bowen Basin or Goldfields FIFO logistics will cost less in practice than a cheaper metro firm that has never run a shift roster at a mine site.
Why getting this choice right matters
Australia runs more than 230 operating mines, and every one of them is legally required to maintain accurate survey records. Resources and energy exports earned the country roughly AUD $385 billion in FY2024–25, and the national surveying profession is carrying a shortfall of well over 1,000 qualified professionals. That combination — high stakes, thin supply — means the market is full of operators offering "mining surveys" with very different levels of competency behind the same words.
The cost of choosing badly is rarely the quote itself. It shows up later: a stockpile volume that is 8% out and triggers a reconciliation dispute with finance; a conveyor structure survey that misses a twist and lets a belt mistrack for another quarter; a shutdown alignment that overruns because the crew turned up without the right total station and the kiln window closed. At $50,000 to $500,000 per day for a processing plant outage, a single mis-scoped survey can dwarf the entire surveying budget for the year.
This is why "how to choose a survey company for mining" is a procurement decision, not a price comparison. The right questions, asked early, filter out most of the risk.
Step 1: Verify mine surveying authorisation and licensing
Start with the legal layer, because it overrides everything else. Statutory mine surveying — the survey of workings, voids, surface relationship plans, and the records a mine must keep under its safety legislation — can only be certified by an appropriately authorised surveyor. The exact title differs by state:
- Western Australia — authorised mine surveyor under the Mines Safety and Inspection framework and the WA Department's requirements.
- Queensland — survey work under the Coal Mining Safety and Health and Mining and Quarrying Safety and Health regimes, requiring a recognised mine surveyor.
- New South Wales — surveyor competency under the NSW Resources Regulator's mine surveying requirements.
Ask the firm directly: who on your team is authorised to certify statutory mine survey work in this state, and what is their registration? For general engineering, dimensional control or volumetric work that does not require statutory sign-off, a registered or licensed surveyor with relevant experience is appropriate — but you still want to see the credential, not infer it.
Tip: Don't accept "we work with mines all the time" as an answer. Request the specific authorisation type and the name attached to it. A genuine specialist answers this in one sentence.
Step 2: Confirm datum and coordinate-system competency
This is the single most common technical failure point, and it is invisible until the data is wrong. Australia has transitioned to GDA2020 as the national datum, with MGA2020 as the projected grid and AHD (Australian Height Datum) for elevations. GDA94 and GDA2020 differ by approximately 1.5–1.8 m depending on location. If your survey provider delivers in the wrong datum, or fails to apply the correct transformation, every coordinate they hand you is shifted by more than a metre.
On a mine site this matters enormously. Drill-and-blast setout, pit design conformance, tailings dam crest monitoring and lease boundary work all depend on everyone using the same reference frame. Before engaging a firm, confirm:
- They work natively in GDA2020 / MGA2020 and can deliver in your site's local mine grid if you use one.
- They establish and validate against your existing survey control network rather than floating their own.
- Elevations are tied to AHD (or your declared site datum) with documented transformation parameters.
Tip: Ask to see a sample deliverable. The metadata block should state the datum, projection, zone and height datum explicitly. If it doesn't, that is a process gap, not a formatting one.
Step 3: Match the equipment and method to your tolerance
"Survey company for mining" covers a spread of work that ranges from broad-area mapping to sub-millimetre alignment. The right firm scopes the method to the accuracy you actually need — and tells you honestly when a cheaper method is good enough or when a precise one is required.
| Survey type | Typical method / equipment | Realistic accuracy |
|---|---|---|
| Open-pit and stockpile mapping | DJI UAV photogrammetry, drone LiDAR | ±30–50 mm (photogrammetry), ±20–40 mm (LiDAR) |
| Topographic / haul road / rehabilitation | RTK GNSS, drone, total station | ±10–30 mm |
| Conveyor and structural as-built | FARO or Leica terrestrial laser scanning | ±2–6 mm over the structure |
| Crane rail and runway alignment | Leica or Trimble total station, laser tracker | ±1 mm in gauge and straightness |
| Mill, kiln and drive alignment | Total station, laser tracker | ±0.5 mm class for trunnion and girth gear |
A firm that owns and operates genuine instrumentation — Leica and Trimble total stations and GNSS, FARO terrestrial scanners, DJI UAV platforms — and can name the model and its specification is in a different category from one that hires kit per job and learns it on your site.
Tip: Ask what tolerance they will guarantee in the report for your specific task, and how they verify it (check shots, closure, registration residuals). A vague "high accuracy" is a red flag; a number with a verification method is the right answer.
Step 4: Check CASA approvals for any drone work
If your scope includes UAV or aerial work — and for stockpile volumetrics, pit mapping, rehabilitation monitoring or tailings inspection it almost certainly will — the firm must operate legally under CASA rules. Commercial drone surveying in Australia requires:
- A current CASA Part 101 Remote Operator's Certificate (ReOC) held by the company.
- Individual Remote Pilot Licences (RePL) for the operators flying.
- Appropriate approvals for the airspace and conditions at your site, including any controlled or restricted airspace near mine aerodromes and FIFO airstrips.
Tip: Request the ReOC number and the operator RePLs in writing. A compliant firm provides these without hesitation. Flying commercially without them exposes both the contractor and your operation to regulatory and insurance risk.
Step 5: Assess remote-site capability and mobilisation
Most of Australia's mining is a long way from anywhere. The Pilbara iron ore operations around Newman, Tom Price and Port Hedland, the Bowen Basin coal mines near Moranbah and Blackwater, the Goldfields around Kalgoorlie and Leonora, Olympic Dam at Roxby Downs — none of these are an easy day trip. A survey firm's metro day rate is meaningless if it cannot get a crew to site efficiently and keep them productive.
Probe for genuine remote experience:
- Have they run FIFO rosters, and do they understand site swing patterns?
- Are their personnel inducted, or able to be inducted quickly, for the major operators' sites?
- Do they hold current site-access medicals, standard 11 / coal board medicals where required, and the safety tickets your site mandates?
- Can they mobilise at short notice for an unplanned outage, not just a scheduled shutdown?
A firm that has worked the Pilbara or Bowen Basin already knows the logistics, the inductions and the pace. That experience usually makes them cheaper in total delivered cost than a lower-quoted firm that has never run a survey shift on a live mine site.
Step 6: Review standards, safety and insurance
Mining clients should expect their survey provider to operate to recognised quality and safety standards. Look for:
- Work delivered to relevant AS/ISO standards for measurement and quality management, with documented procedures rather than ad-hoc practice.
- A current Safe Work Method Statement (SWMS), site-specific risk assessments, and personnel trained for confined space, working at heights, and hazardous-area work as your scope demands.
- Adequate public liability and professional indemnity insurance — request the certificates of currency and check the cover levels suit a mining-scale engagement.
The questions are simple, and the way a firm answers them tells you how it runs. A specialist has these documents ready. A generalist scrambles.
Cost considerations
Mining survey pricing varies widely with scope, accuracy and location, and the cheapest quote is frequently the most expensive outcome. Use these factors to compare like with like.
| Cost factor | Impact | How to manage |
|---|---|---|
| Tolerance required | Sub-millimetre alignment costs far more per point than broad-area drone mapping | Scope the accuracy to the decision the data informs — don't over-specify |
| Site location and access | Remote FIFO mobilisation, travel and accommodation can exceed field time cost | Prefer a firm with existing site experience and efficient mobilisation |
| Shutdown vs operational | Outage work is time-critical; overruns cost downtime, not just survey fees | Engage early, define scope in writing, confirm equipment before mobilisation |
| Deliverable complexity | Point cloud, scan-to-CAD and BIM models add processing time beyond field work | Specify deliverables and formats up front so they are quoted, not assumed |
| After-hours and night shift | Round-the-clock shutdown surveying attracts premiums | Plan survey windows within the shutdown sequence where possible |
The honest framing: a survey is a tiny fraction of a mine's operating budget, but the decisions it underpins — reconciliation, conformance, alignment, compliance — are not. Pay for competency.
Common mistakes to avoid
Choosing on price alone. The lowest quote often reflects a method that doesn't meet your tolerance, or a firm that hasn't priced the real cost of getting to site. Compare scope and accuracy, not just dollars.
Assuming all "surveyors" can certify mine work. General land or construction surveyors are not automatically authorised for statutory mine surveying. Confirm the authorisation matches the work.
Ignoring the datum question. A firm that can't articulate how it handles GDA2020, MGA2020 and AHD will eventually hand you data in the wrong frame. The cost of that error compounds across every downstream activity.
⚠️ Watch out: The most expensive failure is a generalist firm mobilised to a remote site for a time-critical shutdown without the right instrument or the right authorisation. The outage clock keeps running while the problem gets sorted — and you pay for every hour of it.
Frequently asked questions
Do I need a licensed mine surveyor for all mining survey work?
No — only statutory mine survey work (workings, voids, surface relationship plans, and the records required under mine safety legislation) must be certified by an authorised mine surveyor. Engineering, dimensional control, stockpile volumetrics and as-built work can be performed by a competent registered or licensed surveyor with relevant mining experience. Always confirm which category your scope falls into.
What datum should a mining survey use in Australia?
Australia's national datum is GDA2020, with MGA2020 as the projected grid and AHD for heights. Many mines also operate a local mine grid. Your survey provider should work natively in GDA2020/MGA2020, deliver in your site grid where required, and document all transformation parameters in the report.
How accurate does a mining survey need to be?
It depends entirely on the task. Stockpile and pit mapping by drone is typically ±30–50 mm; structural laser scanning is ±2–6 mm; crane rail and mill alignment is ±1 mm down to ±0.5 mm class. A good firm scopes accuracy to the decision the data supports rather than defaulting to "as accurate as possible".
What approvals does a drone survey company need for mining work?
A current CASA Part 101 ReOC for the company, individual RePLs for the pilots, and any airspace approvals relevant to your site — particularly near mine aerodromes and FIFO airstrips. Ask for the certificate and licence numbers in writing before engaging.
How far in advance should I engage a mining survey company?
For scheduled shutdowns, 8–12 weeks gives you the best contractor availability, especially in peak outage seasons (roughly March–May and September–November). For unplanned outages, choose a firm that can demonstrate rapid mobilisation and existing site access credentials.
Request a quote
Choosing a survey company for mining is ultimately about matching legal authorisation, datum competency, the right equipment for your tolerance, and proven remote-site delivery to the work in front of you. Get those four right and the survey becomes the most reliable part of your shutdown or operational plan — not the variable that puts it at risk.
Industrial Spatial Solutions works across Australia's mining regions, from the Pilbara and Goldfields to the Bowen Basin and beyond, delivering dimensional control, drone and laser scanning surveys to the datums, tolerances and standards mining operations require. To scope your next survey or shutdown, call us on 0407 057 015 and talk to a specialist who can tell you exactly what your job needs.