Company Capability Statement
Subsurface intelligence for
critical infrastructure.
Ground penetrating radar, utility locating, concrete scanning, and structural diagnostics for asset owners, principal contractors, and consulting engineers across Queensland and beyond.
What is in this document
This statement sets out who we are, what we are accredited to do, the equipment and methods we apply, the way we report, and a record of comparable work. It is written for procurement, engineering, and HSE reviewers assessing us as a specialist subcontractor or standing-offer supplier.
The Company
Capability
We report confidence, not certainty
Every finding we issue states what was measured, by which method, and where that measurement stops. Positions are classified to AS 5488, non-destructive findings are framed as indicative, by observation, and structural conclusions are referred to a chartered engineer. That discipline is the reason our reports hold up when a project is audited or disputed.
Who we are
South-East Scanning is a specialist subsurface investigation and non-destructive testing consultancy. We tell asset owners and builders what is inside their concrete and under their ground, and we tell them how far that information can be trusted.
The business was founded by brothers Aidan and Dion Waszaj, who brought professional services and built-environment backgrounds to a trade that was, at the time, largely unclassified and inconsistently reported. We started with concrete scanning for cutters and builders on the Gold Coast. Demand pulled us upward: into utility locating classified to AS 5488, then into structural diagnostics, void and loss-of-support investigation, pavement and bridge deck assessment, and expert reporting for engineers and government.
Today we operate as a technical consultancy that happens to own radar, rather than a scanning contractor that happens to write reports. Our technicians are CERTLOC certified. Our reporting is classified, referenced, and defensible. Our findings are expressed as observations with stated limitations, and we refer structural, geotechnical, and certification questions to the appropriately qualified engineer, every time.
To help our clients understand subsurface structures and mitigate their risk through expertise in ground penetrating radar and utility detection. We are a family business with unique insights and a commitment to our clients' success.
What we believe
Confidence is stated, not assumed
A line on a drawing is worthless unless the reader knows how it got there. We label the Quality Level of every run and every segment, and we mark where a trace ended.
Detection is not identification
Radar returns a response, not an object. We say what was observed, what it is consistent with, and what would be required to confirm it.
The report is the product
Site marks fade and memories fail. The deliverable that survives the project is the document, so it is written to be read by an engineer years later.
Why clients engage us
Most subsurface work is bought on price and availability. Tier-one clients buy something else: evidence that will stand up when a project is audited, a claim is made, or a service is struck. These are the six reasons our clients give for engaging us on that basis.
AS 5488 as standard, not on request
Every located service carries a Quality Level, a line type that matches how it was found, and an annotation stating the limit of the finding. Mixed-confidence plans are labelled segment by segment, so a designer can see exactly where verification is still required.
A CERTLOC certified locating organisation
Our technicians hold individual CERTLOC Certified Locator status, assessed by practical examination rather than attendance. We are also a NULCA member, a BYDA certified locator, and hold Certified Locating Organisation standing for access to Telstra pits and plant.
Diagnosis, not just detection
We are routinely engaged after the first contractor has produced a scan and no answer. Slab settlement, water ingress, efflorescence, loss of support, and premature deterioration are investigated as mechanisms, with a considered discussion of the observed evidence.
Radar is one instrument, not the answer
GPR, electromagnetic locating, sondes and traceable rodding, ultrasonic pulse echo, rebound hammer, cover meter, drainage CCTV, thermal imaging, and RTK GNSS control are combined so that the weakness of one method is covered by the strength of another.
Remote and regional mobilisation
We hold a Gold Coast base and work routinely through regional Queensland, from Cairns and Mount Isa to Roma and Gladstone, with completed engagements in South Australia, Western Australia, and internationally. Remote scopes are priced with itemised, transparent mobilisation.
Field marks the same day, report to a schedule
Site marking, sketch, and a summary of findings are issued on the day of attendance where the scope allows. Full classified reports and consultancy-grade investigations are issued against an agreed date and delivered on it.
What we will not do
We do not certify structures, issue geotechnical conclusions, or guarantee that every service on a site has been found. Where a finding points to structural or subgrade concern, we say so plainly and recommend a chartered structural or geotechnical engineer. Clients tell us this is a reason to use us, not a reason to look elsewhere.
Corporate details and insurances
Entity
| Registered name | South-East Scanning Pty Ltd |
| Trading name | South-East Scanning |
| ABN | 84 662 239 581 |
| ACN | 662 239 581 |
| Entity type | Australian proprietary company, limited by shares |
| Established | 2015 |
| Registered office | 1 Mitaro Rise, Pacific Pines QLD 4211 |
| Ownership | Privately held, Australian owned and operated |
| Employees | Six, including four field technicians |
| GST registered | Yes |
Insurances
| Public and products liability | $20,000,000 per occurrence. Insurer and policy number available on request |
| Professional indemnity | $5,000,000 any one claim |
| Workers' compensation | WorkCover Queensland, current policy |
| Plant and equipment | Insured to full replacement value |
| Motor vehicle | Comprehensive, full fleet |
| Certificates of currency | Issued on engagement and on request |
Prequalification and supplier standing
- Local Buy prequalified supplier, verified for supply to Queensland local government under the Local Buy arrangement
- CERTLOC Certified Locating Organisation, certificate current 1 February 2025 to 2027
- Before You Dig Australia registered and certified locator
- Telstra Certified Locating Organisation standing for access to Telstra pits, manholes, and plant
- NULCA Australia member, the National Utility Locating Contractors Association
- Contractor prequalification portals: current registrations maintained across the client-nominated platforms used by our energy, water, and transport clients
- Standing offer arrangements: available for panel, schedule-of-rates, and call-off engagement
- Supplier onboarding: completed inductions and compliance packs held for major Queensland asset owners
Commercial contact
Aidan Waszaj
Operations Manager and Co-founder
0421 193 439
aidan@southeastscanning.com.au
Accounts and administration
Jo Mitchell
Office and Accounts
1300 175 543
info@southeastscanning.com.au
Certifications and accreditations
Locating is an unlicensed trade in Australia. Certification is the only mechanism by which a client can distinguish an assessed locator from an unassessed one, which is why we hold it at both organisation and individual level, and why we are contributing to the development of the next tier of it.
CERTLOC Certified Locating Organisation
Organisational certification confirming compliance with CERTLOC standards for utility locating practice, including access to Telstra pits and manholes for cable and plant location. Certificate current 1 February 2025 to 2027, available for download from our website and on request.
CERTLOC Certified Locator, individual
Our technicians hold individual Certified Locator status, having passed the CERTLOC Certified Locator Practical Assessment. This is a field-assessed competency, not an attendance-based course, and it is the closest thing the industry has to a licence.
Nationally recognised GPR training
Accredited Statement of Attainment for conducting concrete scanning using ground penetrating radar, issued under nationally recognised training.
NULCA Australia membership
Membership of the National Utility Locating Contractors Association, the industry body responsible for locating standards, codes of practice, and professional development in Australia.
Before You Dig Australia
Registered and certified for BYDA enquiry, plan interpretation, and field locating, including risk assessment, locating method selection, and accurate identification of underground assets.
Local Buy prequalified supplier
Statement of Verification as a Local Buy prequalified supplier, enabling direct engagement by Queensland councils and local government entities without separate procurement.
Co-developing the national GPR Locator Certification
South-East Scanning is working with CERTLOC and C R Kennedy on the development of a GPR Locator Certification programme, including the competency matrix and tiered assessment framework for GPR operators. Australia currently certifies electromagnetic locating competency but has no equivalent standard for radar, despite radar carrying an increasing share of the interpretive load on modern sites. We are helping to close that gap, and our own technicians will be assessed against the standard we are helping to write.
Safety, quality, and environment
Work health and safety
Our technicians work inside live plant, on operating roads, in confined spaces, at heights, and alongside energised assets. Safety is managed through a documented system that is issued before mobilisation, not assembled after an incident.
- Project-specific SWMS issued for every engagement, aligned to the principal contractor's requirements
- Job hazard analysis and pre-start take 5 completed and recorded on site
- Confined space entry and working at heights qualified personnel
- White card, general construction induction held by all field staff
- Traffic management engaged or coordinated where works affect a trafficked area
- Client site inductions completed in advance of mobilisation, including energy, water, and port sites
- Drug and alcohol policy, fitness for work, and fatigue management for remote and extended shifts
- Incident, hazard, and near-miss reporting with corrective action tracking
GPR is a low-power, non-ionising technique. Unlike radiographic concrete inspection it requires no exclusion zone, no permit, and no evacuation of adjacent areas, which is why it is the preferred method in occupied buildings, live retail, and operating plant.
Quality assurance
- Documented scan methodology, line spacing, and coverage recorded for each investigation
- Velocity calibration by hyperbola matching, with the adopted dielectric constant stated in the report
- Cross-verification between methods, for example B-scan confirmed by A-scan waveform analysis
- Instrument calibration and service records maintained for all measurement equipment
- Findings classified to AS 5488 where positional confidence is reported
- Internal technical review of consultancy reports before issue
- Raw data retained and available for reissue, reinterpretation, or third-party review
Environment
- Non-destructive by design: our primary methods leave no core holes, no spoil, and no reinstatement
- Marking paints selected for the surface and the environment, water-based where the setting requires
- No excavation, no dewatering, and no discharge associated with our field methods
- Environmental controls of the host site observed without exception, including port, water catchment, and cultural heritage requirements
- Cultural heritage and burial sensitivity protocols observed on cemetery and heritage engagements
Capability at a glance
Four capability groups, applied singly or in combination. Most engagements of any size draw on more than one, which is the point: the limitations of any single method are covered by the strengths of another.
Utility locating and subsurface utility information
BYDA enquiry and plan interpretation, electromagnetic locating, GPR sweep, sonde and traceable rodding, service marking, and AS 5488 classified plans and reports.
Concrete scanning and non-destructive testing
Reinforcement mapping, post-tension duct and cable detection, slab thickness, cover assessment, embedded service detection, void and honeycombing checks, surface hardness, and ultrasonic pulse echo.
Structural diagnostics and investigation
Slab settlement and distress investigation, water ingress and moisture pathway analysis, loss of support and void detection, footing and plinth assessment, and consultancy-grade reporting for engineers, insurers, and solicitors.
Infrastructure and asset condition
Bridge deck and pavement assessment, asphalt thickness profiling, subgrade and layer mapping, large-area subsurface mapping with RTK GNSS control, cemetery and grave site investigation, and drainage CCTV.
Typical engagement types
| Engagement | What the client is deciding | Typical output |
|---|---|---|
| Dig approval | Whether it is safe to put a machine in the ground at a nominated location | Marked site, classified plan, QL-A pothole verification at critical crossings |
| Design clash check | Whether a proposed alignment or structure conflicts with existing services | Classified plan with segment-level Quality Levels and identified verification points |
| Penetration approval | Where a slab can be cored, cut, or drilled without striking reinforcement, post-tension ducts, or embedded services | Marked penetration locations, scan record, photographic register, and a statement of what could not be resolved |
| Defect investigation | Why a slab, pavement, or structure is cracking, settling, or admitting water | Consultancy investigation report with a discussion of the observed mechanism and staged recommendations |
Utility locating and subsurface utility information
Underground services are among the most common causes of unexpected cost, delay, and safety incident on a construction site. We reduce that exposure, and we state precisely how far it has been reduced.
A Before You Dig Australia enquiry returns the asset owners' own records. Those records sit at QL-D: they are frequently incomplete, superseded, or drawn without survey accuracy. Field locating lifts confidence to QL-C, QL-B, or, with potholing, QL-A. Our role is to carry out that lift, to record it, and to be explicit about where it stops.
Scope of service
- BYDA enquiry lodgement, plan retrieval, and interpretation
- Site walkover and correlation of records to visible surface features
- Electromagnetic locating by direct connection, induction clamp, or induced signal
- GPR sweep for non-conductive services and for services with no accessible connection point
- Sonde and traceable rodding through drains, conduits, and non-conductive lines
- Fibre-optic duct tracing by trace rod insertion
- Surface marking to the AS 5488 colour convention, with legend and site sketch
- Depth estimation at QL-B, with the tolerance stated
- Attendance and supervision of non-destructive potholing to confirm services at QL-A
- Cable fault location using A-frame fault-finding equipment
- Build-over application support to QL-B, confirming depth, orientation, and boundary offset
The Australian convention differs from the American one in an important way: electricity is orange, and red is reserved for fire services. Every mark, sketch, and drawing we issue for a site uses one consistent colour scheme, with a legend on the plan.
Our plan annotations state the finding, then use a semicolon to introduce any caveat, naming the methods that could not confirm it.
"100mmØ PVC stormwater, I.L 700mm; alignment beyond pit inferred, not traced."
Methods and what each can support
| Method | Typical level | Principal limitation |
|---|---|---|
| Records and BYDA review | QL-D | Only as reliable as the source records |
| Surface feature correlation | QL-C | The path between features is inferred |
| Electromagnetic locating | QL-B | Needs a conductor or tracer; depth is estimated |
| Ground penetrating radar | QL-B | Attenuates in wet, clay-rich, or congested ground |
| Sonde and traceable rodding | QL-B | Requires internal access to the pipe or duct |
| Supervised non-destructive potholing | QL-A | Confirms the service at the point of exposure only |
Quality Levels and safe excavation
AS 5488, Classification of Subsurface Utility Information, measures confidence rather than correctness. A service shown at the highest Quality Level has been physically verified. A service shown at the lowest has been drawn from a record that may be wrong. Both can appear on the same plan, which is exactly why the level matters.
Taken entirely from existing records, as-built drawings, and BYDA responses. No field work. Not a basis for any excavation decision.
Records reconciled with visible surface features to infer alignment between known points. Depth remains unknown.
Horizontal position detected and marked using geophysics. Reliable in plan; depth is an estimate with a stated tolerance.
Physically exposed and measured. Position, depth, diameter, and material confirmed at that point only. The only level suited to high-consequence excavation.
Read every plan as mixed
A real utility plan is rarely a single Quality Level. One drawing routinely carries a potholed water main at QL-A, a traced cable at QL-B, an inferred drain at QL-C, and a gas main known only from records at QL-D. Our deliverables label each, so you can see where confidence is high and where it is not.
Match confidence to consequence
The question is not simply "locate the services", but "to what level of confidence, and where does that confidence need to be highest". A comms conduit in soft ground and a charged high-voltage cable beneath a proposed bore are not the same decision, and should not be given the same level of confidence.
The five P's of safe digging
Lodge a BYDA enquiry and review every available record.
Have services located and marked to a level suited to the work.
Expose critical services to confirm position and depth (QL-A).
Support, barricade, and clearly mark exposed services.
Dig carefully, hand-dig within tolerance zones, and stop if the unexpected appears.
"Not located" is not "not there"
An absence of signal means nothing was detected, not that the ground is clear. Unrecorded and abandoned services exist on many sites.
Marks carry a tolerance
AS 5488 allows a 300mm width and 500mm depth tolerance on site markings. A mark is the centre of a zone, not a hairline.
EOT is not the end of the asset
End of trace marks the point beyond which a signal could not be followed. Treat everything past it as unlocated.
Concrete scanning and non-destructive testing
Knowing what is inside a slab before it is cut is the difference between a routine penetration and a severed post-tension tendon, a struck conduit, or an unplanned structural remediation.
We scan slabs, walls, columns, beams, decks, and pool shells, in occupied buildings and live plant, without exclusion zones. Where radar reaches its limit, in heavily reinforced podium slabs or at depth, we move to ultrasonic pulse echo, which scans from one side and resolves anomalies beyond the reach of GPR.
What we detect and measure
- Reinforcement bar layout, spacing, and orientation
- Post-tension cables and ducts, banded and distributed
- Embedded conduits, live power, and hydraulic services
- Concrete cover depth to reinforcement
- Slab and element thickness
- Voids, honeycombing, and cold joints
- Delamination and internal defects
- Surface hardness and comparative strength indication
- Bar diameter estimation, within stated limits
- Structural element identification: beams, footings, capitals
Applications
Core hole and penetration approvals, saw cutting and demolition planning, anchor and fixing installation, structural verification against design documentation, as-built capture where drawings are absent, and durability assessment through cover survey.
Depth of investigation
As a rule, our handheld systems achieve approximately 500mm in concrete. The signal attenuates with depth and with slab congestion. For heavily reinforced podium slabs we rely on alternative methods such as ultrasonic pulse echo.
Bar diameter
There is no defensible way to determine bar diameter using NDT alone. We use a Profometer cover meter to obtain estimates, subject to a maximum cover depth of 63mm. Where a specific diameter is required, a core sample or break-out is necessary.
No-scan zones
The radar antenna sits within the scanner chassis, set back from the front edge, so a strip adjacent to walls and upstands cannot be scanned. It means no data was collected there, not that the area is clear. We mark these zones on the deliverable.
Where radar cannot go, we say so before we mobilise
Structural diagnostics and investigation
This is the work we are most often called in for after somebody else has produced a scan and no answer. A slab is cracking, sagging, or admitting water, and the owner needs to know why before committing to a repair that may not address the cause.
Investigation types
- Slab settlement and distress: crack mapping, reinforcement placement verification, subgrade support assessment, and discussion of the observed mechanism
- Water ingress and moisture pathways: distinguishing hydrostatic pressure, slab cracking, rising damp, failed waterproofing, and leaking services beneath the structure
- Efflorescence and durability: moisture source identification, in-situ relative humidity probe testing, and surface moisture assessment
- Loss of support and voiding: soil washout, erosion channels, poor compaction, and under-slab voids
- Footing, plinth, and foundation assessment: geometry, depth, reinforcement, and condition of buried structural elements
- Pool and tank shells: internal structure, wall and floor thickness, reinforcement, and defect mapping before refurbishment
Deliverable
A consultancy-format investigation report: executive summary, scope and methodology with stated limitations, site description, visual observations, GPR and NDT results, discussion of the observed mechanism, and recommendations divided into immediate, further investigation, and future works.
Findings are expressed as indicative, by observation, of a particular condition. We do not assert cause where the evidence supports an interpretation rather than a conclusion.
We investigate. Engineers certify.
Our reports do not constitute structural certification or geotechnical assessment, and are not offered as such. Where observations indicate movement, settlement, loss of support, or subgrade concern, we recommend engagement of a chartered structural engineer, a geotechnical engineer, or both, and we provide the data those engineers need to work from. Holding that line is what makes our reports usable in an engineering or legal setting.
Expert and dispute support
We prepare investigation reports for solicitors, insurers, and owners' corporations, including reports in the form required by the Uniform Civil Procedure Rules for expert evidence. Work of this kind is undertaken with a documented chain of evidence: dated photographic registers, recorded scan positions, retained raw data, and a clear separation of observation from opinion.
Working alongside your engineer
Where a structural or geotechnical consultant is already engaged, we work to their brief and deliver the data in the form they need, including georeferenced anomaly plans, depth and thickness maps, annotated radargrams, and raw files for independent reinterpretation. We are comfortable being the instrument rather than the interpreter where that is the appropriate role.
Geotechnical GPR, voids, and loss of support
Low-frequency radar reaches metres rather than millimetres. It is how we assess what is happening beneath a pavement, a slab, a weir, or a road embankment without excavating to find out.
Voids and washout rarely announce themselves at the surface until failure is imminent. Radar detects the changes in material density and moisture content that precede that failure, allowing remediation to be scoped and priced while it is still a maintenance item.
What we investigate
- Under-slab and under-pavement voiding
- Soil washout and erosion channels around structures, bridges, and headwalls
- Loss of support beneath elevated road sections and industrial slabs
- Saturated and low-density backfill zones
- Subgrade layering, compaction variation, and stratigraphy changes
- Sinkhole and disturbed ground assessment
- Buried structures, obstructions, and former foundations
- Depth to rock and material transitions, within the limits of the method
Positional control: Large-area investigations are collected under RTK GNSS control, giving sub-decimetre spatial accuracy and allowing scan anomalies to be correlated directly with site layout, design drawings, and follow-up coring positions.
Detection is not identification
A radar response shows that something is present, and that a boundary exists. Confirming what it is, and how large, requires supporting evidence or exposure.
Ruling out matters too
Establishing that no conclusive voiding exists is frequently the more valuable outcome, because it redirects a client away from unnecessary excavation and toward the actual mechanism.
Ground governs performance
Wet, clay-rich, and saline ground attenuates radar sharply. We assess ground conditions at quotation and state the expected depth of investigation before attending.
Pavement, bridge deck, and asset condition
Asphalt thickness, deck condition, and layer structure, mapped continuously and non-destructively, with no coring, no lane closures where traffic management allows, and no reinstatement.
Services
- Asphalt and wearing surface thickness profiling along continuous scan lines
- Bridge deck assessment: deck thickness, reinforcement layout, cover, and delamination indication
- Pavement layer thickness and subgrade transition mapping
- Moisture-related anomaly identification within pavement structures
- Relieving slab and approach slab assessment
- Identification of previous patching, resurfacing, and construction variability
- Targeted coring location selection, where destructive verification is required
Why non-destructive
Coring gives an exact value at a point and no information between points. Radar gives a continuous profile with a stated tolerance. On a bridge deck, the continuous profile is usually the more useful dataset, because thickness variation between cores is precisely what maintenance planning needs to see.
Velocity calibration is performed by hyperbola matching on the reinforcement layer to maintain internal depth consistency, and the adopted dielectric constant is stated in the report. Where the asphalt-to-concrete interface is not clearly resolved in B-scan data, we confirm it through A-scan waveform analysis rather than reporting an unverified boundary.
Factors we assess before quoting a pavement or deck survey
Surface condition
Weathering, cracking, and water held in cracks produce early signal responses that complicate interpretation.
Material contrast
Where the dielectric properties of adjacent layers are similar, the reflection at the boundary may be weak.
Congestion
Dense top reinforcement masks deeper features and limits what can be resolved beneath it.
Access and traffic
Scan line layout, traffic management requirements, and available closure windows shape the achievable coverage.
Specialist and complementary services
Cemetery and grave site investigation
Non-invasive location of unmarked and unrecorded interments, plot boundary confirmation, and burial capacity assessment for councils, cemetery trusts, and road authorities. Delivered with cultural sensitivity protocols and georeferenced output suitable for direct import to a cemetery management system or GIS.
Drainage and sewer CCTV inspection
Rapid, high-resolution pipe and pit inspection using a 360-degree pole camera, for condition assessment, blockage detection, structural analysis of the line, and confirmation of connectivity. Frequently paired with GPR where a suspected leak is being investigated as the source of under-slab moisture or washout.
Concrete moisture and impedance testing
Surface and in-situ moisture assessment for floor covering suitability, efflorescence investigation, and water ingress diagnosis, including in-situ relative humidity probe testing where a defensible measurement of internal slab moisture is required rather than a surface indication.
Thermal imaging
Infrared survey for moisture mapping, thermal anomaly detection in building fabric, and identification of concealed leaks and thermal bridging. Used as a complementary method to narrow a search area before radar or invasive investigation.
Electrical fault location
Location of insulation faults and breaks on buried cables using A-frame fault-finding equipment, pinpointing the fault position for excavation rather than requiring the length of the run to be exposed.
Drone and aerial survey
Aerial imagery and site capture to provide the surface context that subsurface data is registered against, for large sites, corridors, and areas where access on foot is restricted.
Advanced data processing and visualisation
Raw radar is a difficult document to hand an asset manager. Most of the value in a survey is released in processing, where a dense field dataset becomes a map somebody can act on.
We process GPR data into depth and thickness maps, amplitude maps, slices and multislices, and georeferenced overlays that sit directly on site layout or design drawings. Where a client's engineer wants to work with the underlying data, we supply it, along with the acquisition parameters and calibration basis needed to reinterpret it independently.
Processing outputs
- B-scan profiles with interpreted horizons and annotated reflectors
- C-scan depth slices and plan-view interpretation from gridded line data
- Depth, thickness, and amplitude maps across a surveyed area
- Georeferenced anomaly overlays on site plan or aerial imagery
- Cross-sections through a nominated alignment
- CAD-compatible and GIS-compatible output on request
- Raw data files retained and available for reissue or third-party review
Geolitix for GPR data analysis and mapping; Screening Eagle Inspect for structural inspection data capture and reporting; manufacturer processing suites for concrete and utility radar systems.
Reading the output honestly
Colour scales are a visualisation choice and vary with software and settings; colour alone carries no universal meaning. Depths are based on assumed or calibrated velocity and are best estimates, not exact measurements. A C-scan is a plan-view interpretation, not a literal photograph of what lies below. Every processed deliverable we issue states these things on its face.
Equipment schedule
Owned and maintained in-house, with calibration and service records available on request. Instrument selection is made against the scope, the material, and the required depth of investigation, and is stated in the report.
| Instrument | Class | Application |
|---|---|---|
| Leica DS2000 | Dual-frequency utility GPR | Cart-based utility locating and mapping, with simultaneous shallow and deep frequency channels |
| Leica DS4000 | Dual-frequency utility GPR | Large-area utility, void, and cemetery survey under georeferenced control |
| ImpulseRadar PinPointR | Dual-channel utility GPR | Compact real-time utility detection, high and low frequency channels acquired together |
| Mala GX160 | Low-frequency GPR, 160 MHz | Deep subsurface investigation: voids, subgrade anomalies, layering, and buried structures to several metres |
| IDS GeoRadar C-Thrue | High-frequency GPR | Concrete scanning: reinforcement, post-tension ducts, conduits, cover, slab thickness, and voids in structural elements |
| Proceq GP8000 | High-frequency GPR | Concrete and pavement scanning, asphalt thickness profiling, bridge deck assessment, B-scan and A-scan analysis |
| GSSI Flex NX | High-frequency GPR | Concrete scanning and structural element mapping, applied where slab congestion or access suits a second radar system |
| Radiodetection RD8100 | Electromagnetic locator | Precision utility locating by direct connection, induction, and passive sweep, with depth estimation |
| Vivax vLoc3 | Electromagnetic locator | Utility tracing and depth estimation, held as a second locating system for concurrent crews and cross-checking |
| Radiodetection A-Frame | Fault location | Location of insulation and sheath faults on buried cables |
| Sondes and traceable rods | Tracing | Tracing of non-conductive drains, conduits, and fibre-optic ducts from internal access |
| Proceq Profometer PM8000 | Cover meter | Reinforcement location, cover measurement, and bar diameter estimation to a maximum cover of 63mm |
| Proceq Pundit PL200 | Ultrasonic | Ultrasonic pulse echo and pulse velocity: void and delamination detection, thickness from one side, and internal defect assessment |
| Proceq SilverSchmidt | Rebound hammer | Concrete surface hardness and comparative strength indication |
| Emlid Reach RS2 | GNSS receiver | RTK positional control for georeferenced survey, sub-decimetre spatial accuracy |
| Leica FLX | GNSS receiver | Positional control paired with the utility radar systems for georeferenced acquisition |
| Envirosight QuickView 360 | Pole camera | Rapid high-resolution sewer, stormwater, and pit inspection |
| Moisture and RH probe set | Concrete moisture | Surface moisture assessment and in-situ relative humidity testing of concrete slabs [equipment to be confirmed] |
| UAV platform | Aerial | Site and corridor imagery capture [platform and operator arrangements to be confirmed] |
Manufacturer partnerships
We maintain supplier and service relationships with the manufacturers and distributors of our radar and locating equipment, giving us direct technical support and early access to method development.
Redundancy
Multiple radar systems and locators are held across the fleet, so an instrument fault does not become a failed attendance or a lost programme day.
Calibration
Instruments are maintained on the manufacturer's recommended service interval, with calibration and service records retained and available on request.
Reporting and deliverables
The report is the part of our work that outlives the project. It is written so that an engineer who was not on site, reading it two years later, can tell exactly what was measured and how far to trust it.
Utility location report
Short, declarative, and drawing-centric. Scope and methods, site plan with classified services, annotation stating each finding and its caveat, EOT positions, marking legend, photographic record, and limitations.
- AS 5488 Quality Level per run and per segment
- Solid line for located, dashed for inferred or record
- Depth notation with stated tolerance at QL-B
- BYDA plans referenced and appended
Concrete scanning report
Scan area and coverage, marked penetration or clearance locations, reinforcement and embedment findings, depth and cover results, no-scan zones identified, photographic register, and limitations.
- Marked-up plan or elevation of the scanned area
- Depth slices or profiles where they aid interpretation
- Clear statement of what could not be resolved
Consultancy investigation report
A structured technical document for engineers, insurers, and asset owners, typically 20 to 40 pages, issued as a branded PDF.
- Executive summary and indicative finding
- Scope, methodology, and limitations
- GPR and NDT investigation results
- Recommendations: immediate, further investigation, future works
Turnaround
| Site marking and sketch | Same day, on site |
| Summary of findings | Same day where scope allows |
| Standard utility or scanning report | 1 to 3 business days |
| Consultancy investigation report | Agreed at engagement, typically 5 to 15 business days |
| Processed and georeferenced datasets | By agreement with scope |
| Urgent and after-hours | By arrangement, 24/7 standby available |
Formats
- Branded PDF report, issued by email with a transmittal
- Marked-up client drawings, returned in the format supplied
- CAD and GIS compatible files where georeferenced capture is in scope
- Raw instrument data on request
- Client document control numbering and templates adopted where required
How we deliver a project
Scope
We ask what decision the information has to support. A clash check reads differently to a dig approval, and a maintenance plan differently again. Drawings, records, and known constraints are requested up front, and the Quality Level required is nominated, by location.
Plan
BYDA enquiry lodged, records reviewed, methods selected against ground and material conditions, access and permits confirmed, SWMS and inductions issued, and traffic management arranged where the work affects a trafficked area.
Mobilise
Pre-start and hazard assessment on arrival. Instruments selected and calibrated for the site. Where conditions differ from what was scoped, we raise it before proceeding rather than after invoicing.
Acquire
Systematic coverage on a recorded line spacing, with positional control where the scope requires it. Services marked to the colour convention, findings sketched, and the photographic register captured on site.
Interpret
Data processed and cross-verified between methods. Velocity calibration documented. Anomalies classified. Anything that cannot be resolved is recorded as unresolved rather than smoothed over.
Report
Findings issued in the agreed format against the agreed date, followed by a conversation with the person who has to act on them. Raw data retained for reissue, reinterpretation, or third-party review.
What we ask of you
- Drawings, BYDA plans, and known site constraints, shared up front
- Site access, keys, and pit access arranged for the attendance window
- Advice of site-specific induction requirements before mobilisation
- SWMS, insurances, and certifications issued before attendance
- Findings on site the same day, and the report on the agreed date
What you get from us
- A clear statement of the decision the survey has to support
- Nomination of where the highest confidence is required
- A quotation that states method, coverage, and the achievable Quality Level
- A named technician and a direct line to the Operations Manager
- An honest account of what the survey could not establish
Project experience: transport and bridges
Bridge deck asphalt thickness assessment, Marion Creek Bridge
CS-01Scope
RoadTek required an assessment of relative asphalt thickness across the deck of Marion Creek Bridge ahead of scheduled maintenance. Traditional coring was rejected in favour of a non-destructive approach that would profile the full deck rather than sample it at points.
Method
Two longitudinal scan lines were assessed within each of the four spans. The asphalt was heavily weathered, with extensive cracking and moisture ingress following recent rainfall, and water held in the cracks produced early signal responses that obscured the asphalt-to-concrete interface. Data was interpreted using both B-scan and A-scan waveform analysis so that unclear reflections in one dataset could be confirmed against waveform behaviour in the other. Velocity calibration was performed by hyperbola matching on the reinforcement layer, adopting a dielectric constant of 6.5 to reflect aged, heat-exposed asphalt.
Continuous asphalt thickness mapping, Toowoomba Velodrome
CS-02Scope and method
NTRO required a clear understanding of asphalt thickness across the Toowoomba Velodrome track. The surface is a high-value sporting asset on which destructive verification carries a real cost, both in reinstatement and in the risk of introducing a defect into a racing surface. Four lanes were mapped continuously using ground penetrating radar, without a single core drilled through the track.
Project experience: ports, energy, and industry
Void detection survey beneath heavy-duty pavement, Port of Brisbane
CS-03Scope
Engaged as part of a broader geotechnical assessment, to investigate suspected voiding and subgrade anomalies beneath reinforced concrete slabs in a critical heavy-duty pavement zone, where pavement degradation or subsurface washout would compromise operational safety and long-term durability of a high-traffic freight and logistics area.
Method
Low-frequency radar was selected for depth of penetration and sensitivity to changes in material density. Positional control was established by RTK GNSS to sub-decimetre accuracy, allowing scan anomalies to be correlated spatially with site layout. A dense grid of longitudinal and transverse passes was collected across the affected slab area, then processed with custom depth slices, amplitude gain adjustment, and interpretation overlays.
Vaporiser plinth and base slab assessment, Broome Gas Power Station
CS-04Scope and method
A detailed structural assessment of the vaporiser plinths and base slab at an operating gas power station, requiring interstate mobilisation to a remote site and works conducted within a live energy generation environment under the operator's permit and induction regime. Reinforcement configuration, element geometry, and internal condition were assessed non-destructively.
Project experience: water and utilities
Water reservoir structural analysis survey, Lowood
CS-05Scope and method
A structural analysis project on a reservoir asset, undertaken for a specialist water infrastructure contractor on behalf of the asset owner. GPR was applied to characterise the internal structure of the reservoir elements, including reinforcement configuration and element thickness, in support of assessment and planned works.
Reservoir and tank structures are demanding radar environments: curved surfaces, dense reinforcement, and saturated or recently emptied concrete all affect signal behaviour. Scan layout and instrument selection were set accordingly, and the limits of what could be resolved were stated in the deliverable.
Embedment identification, water tank structure, Tanawah
CS-06Scope and method
A GPR survey of a water tank structure to identify embedments within the concrete ahead of planned works. Identifying reinforcement and embedded items before any penetration is made into a water-retaining structure is the difference between a routine fixing and a breach of containment.
Project experience: government and community assets
Cemetery survey within a road corridor, Therwine Street
CS-07Scope and method
Contracted by TMR to conduct a ground penetrating radar survey along Therwine Street to investigate the presence and extent of interments within an area affected by road works. Survey of this kind carries obligations beyond the technical: it is conducted with cultural sensitivity protocols in place, and findings are handled with the discretion the subject matter requires.
Systematic gridded coverage was applied across the survey area, with anomalies assessed against the characteristic radar signature of a grave shaft, being disturbed ground, backfill contrast, and depth consistency, rather than reported on the strength of a single response.
Under-slab void investigation, elevated road section, Logan Village
CS-08Scope and method
A detailed GPR survey of an elevated road section to inspect for under-slab voids capable of undermining the structural integrity of the roadway. Voiding beneath a trafficked elevated structure is a progressive condition: it is inexpensive to remediate while it is a void and expensive once it is a failure, which makes early detection the entire value of the survey.
Project register
A selection of completed engagements. Detailed case studies and client references are available on request.
| Project | Client | Location | Scope |
|---|---|---|---|
| Marion Creek Bridge deck survey | RoadTek Mackay (TMR) | Ilbilbie, QLD | Asphalt thickness profiling across four spans, B-scan and A-scan analysis |
| Toowoomba Velodrome | NTRO | Toowoomba, QLD | Continuous asphalt thickness mapping across four lanes, no coring |
| Port of Brisbane pavement | Douglas Partners | Port of Brisbane, QLD | Deep GPR void and subgrade assessment under RTK GNSS control |
| Broome Gas Power Station | EDL Energy | Broome, WA | Vaporiser plinth and base slab structural assessment |
| Water reservoir, Lowood | Water Infrastructure Services, for Unitywater | Lowood, QLD | Structural analysis of reservoir elements |
| Water tank embedment survey | Unitywater | Tanawah, QLD | Identification of embedments in concrete before penetration |
| Therwine Street cemetery survey | Transport and Main Roads | Cairns, QLD | Grave site investigation within a road corridor |
| Tomohon Heights Close | Logan City Council | Logan Village, QLD | Under-slab void detection beneath an elevated road section |
| Indooroopilly Bridge, Chelmer | Eptec Pty Ltd | Chelmer, QLD | Soil washout assessment beneath a bridge structure |
| Mackay regional road network | RoadTek | Mackay region, QLD | Reinforcement and asphalt thickness assessment across multiple sites |
| Anna Creek Bridge | Regional infrastructure client | Regional QLD | Structural integrity and subsurface anomaly detection |
| Orange Creek Weir | Water infrastructure client | QLD | Structural integrity and void detection to support urgent repair planning |
| Large-scale industrial site mapping | ARCOS | Dalby, QLD | Large-area GPR subsurface mapping across an industrial site |
| Post-tensioned slab void investigation | Construction client | Aldoga, Gladstone region, QLD | Ultrasonic testing for voids within a post-tensioned slab |
| Biloela Olympic pool | Banana Shire Council | Biloela, QLD | Subsurface water ingress investigation beneath an aquatic facility |
| Gladstone Leisure Centre | Gladstone Regional Council | Gladstone, QLD | Two-stage GPR investigation of pavements and indoor pool structure |
| Warehouse slab assessment | Provac | Arundel, QLD | Diagnosis of suspected structural issues in a large industrial warehouse |
| Land parcel GPR survey | Cherbourg Aboriginal Shire Council | Cherbourg, QLD | GPR survey of a large land parcel earmarked for development |
| Noosa Blue Resort pool | Private asset owner | Noosa, QLD | Non-destructive structural assessment of a pool shell before refurbishment |
Clients and sectors
Transport and roads
State road authorities and their delivery arms, bridge maintenance contractors, and pavement consultants. Bridge deck and asphalt assessment, corridor utility locating, cemetery and heritage constraint investigation within road reserves.
Water and wastewater
Bulk water and distributor-retailer utilities and their contractors. Reservoir and tank structural investigation, treatment plant assessment, buried asset location, and build-over applications.
Energy and generation
Generators and operators of power infrastructure. Plinth and foundation assessment, structural scanning within live plant, and utility locating within operating switchyards and station boundaries.
Ports, logistics, and heavy industry
Port authorities, freight operators, and industrial asset owners. Heavy-duty pavement assessment, void and subgrade investigation, and warehouse slab diagnostics.
Local and state government
Councils and government departments, engaged directly or under the Local Buy arrangement. Community facility assessment, road and pavement condition, cemetery survey, and asset capture.
Principal contractors and builders
Tier-one and tier-two contractors and their subcontract chains. Penetration approvals, dig approvals, clash checks, and as-built verification, delivered to the programme rather than to our convenience.
Consulting engineers and geotechnical firms
Structural, civil, and geotechnical consultancies engaging us as the instrument within their investigation. Data supplied in the form the consultant requires, including raw files for independent reinterpretation.
Insurers, solicitors, and owners' corporations
Investigation and expert reporting where a defect is in dispute, with documented chain of evidence and a clear separation of observation from opinion.
Organisations we have delivered for
TRANSPORT AND MAIN ROADS · ROADTEK · UNITYWATER · DOUGLAS PARTNERS · EDL ENERGY · NTRO · LOGAN CITY COUNCIL · BANANA SHIRE COUNCIL · GLADSTONE REGIONAL COUNCIL · CHERBOURG ABORIGINAL SHIRE COUNCIL · WATER INFRASTRUCTURE SERVICES · EPTEC · ARCOS · PROVAC · WOOLWORTHS
Our team
A small, certified team. Every field technician who attends your site is an employee, not a labour hire placement, and the person who scoped the work is contactable throughout delivery.
Aidan Waszaj
CERTLOC certified. Responsible for technical delivery, scoping, and reporting. Background in corporate consulting before co-founding the business. Leads our consultancy and expert reporting work, and co-develops the CERTLOC GPR Locator Certification programme.
Dion Waszaj
Co-founded the business with Aidan after relocating to South-East Queensland, bringing built-environment and professional services experience to a specialist trade.
Harley Murray
CERTLOC Certified Locator. Utility locating, concrete scanning, and cable fault location. Regularly leads remote and regional mobilisations.
Marc Ogg
CERTLOC Certified Locator. Utility locating, concrete scanning, and structural NDT, including rebound hammer and cover meter assessment.
Davide Malagoli
Concrete scanning, utility locating, and field data capture across the South-East Queensland service area.
Jo Mitchell
Scheduling, client liaison, compliance documentation, and accounts. First point of contact for booking, inductions, and supplier onboarding.
Held by all field staff
CERTLOC certification, general construction induction (white card), confined space entry, working at heights, and current client site inductions.
Continuing development
Internal technical training is documented and delivered on specific instruments and methods, with written procedures retained for each.
Capacity
Concurrent crews can be fielded for multi-site programmes. Where a programme exceeds internal capacity, we say so at tender rather than at delivery.
Coverage and mobilisation
Based on the Gold Coast, operating across Queensland, and mobilised interstate and internationally where the scope justifies it.
Core service area
South-East Queensland: Gold Coast, Brisbane, Ipswich, Logan, Sunshine Coast, and the Noosa to Coolangatta corridor. Standard scheduling, two-hour minimum attendance.
Regional Queensland
Wide Bay and Fraser Coast, Gympie, Bundaberg, Gladstone, Rockhampton, Mackay, Townsville, Cairns, Mount Isa, and Roma. Mobilised on programme, with regional work batched where several sites can be attended in one trip to reduce cost to the client.
Remote and interstate
Completed engagements in Western Australia, South Australia, New South Wales, and internationally. Remote scopes are quoted with itemised mobilisation, so that travel, accommodation, freight, and standby are visible and separable from the technical fee rather than buried in a rate.
Standard hours Monday to Friday. Night works, weekend works, and shutdown windows are accommodated by arrangement, and we hold 24/7 standby availability for critical and emergency response works where a strike, failure, or incident requires immediate investigation.
What mobilisation includes
Pre-attendance
BYDA lodgement, record review, SWMS issue, induction completion, and access coordination.
On site
Pre-start, scoping walkover, systematic acquisition, marking, sketching, and photographic capture.
Same day
Marked site, field sketch, and a verbal or written summary of findings where the scope allows.
After
Processing, interpretation, report issue against the agreed date, and a follow-up discussion.
Engaging us
Commercial arrangements
| Scheduled attendance | Two-hour minimum call-out, then hourly, covering attendance, scoping, scanning, and site notes |
| Day rate | Available for full-day and multi-day programmes |
| Schedule of rates | Issued for panel, standing offer, and call-off arrangements |
| Fixed fee | For defined-scope investigations and consultancy reporting |
| Remote mobilisation | Itemised separately: travel, accommodation, freight, and standby |
| Reporting | Standard reporting included; consultancy-format investigation reporting quoted with the scope |
| Terms | As agreed at engagement; we work under client contract terms or issue our own |
A current rate card is issued on request and on entry to any standing arrangement.
Standing arrangements
For clients with recurring subsurface requirements, a standing offer or panel arrangement removes procurement friction from every individual job, fixes rates for a term, and lets us hold your induction, compliance, and reporting template requirements ready. We welcome discussions on arrangements of this kind.
What we need to quote accurately
- Site address and access arrangements, including induction requirements
- The decision the information has to support
- Drawings, BYDA plans, and any previous investigation reports
- Extent of the area or the number of locations
- Surface type and condition, and any known congestion
- Required Quality Level, and where it is required
- Programme dates and any closure or shutdown windows
- Reporting format and whether client templates apply
The process
Send the scope, the drawings, and the constraints. We will tell you what is achievable and at what Quality Level before you commit.
A written quotation stating method, coverage, achievable confidence, deliverable, and turnaround, with compliance documentation attached.
Attendance on the agreed date, findings on site, and the report on the agreed date, followed by a conversation about what it means.
Let's talk about your site.
Send through your drawings and scope, and we can advise the method, the achievable Quality Level, and what each part of the job calls for, before you commit to anything.
Primary Contact
Aidan Waszaj
Operations Manager and Co-founder
0421 193 439
General Enquiries
T 1300 175 543
1 Mitaro Rise
Pacific Pines QLD 4211
Accreditation
CERTLOC Certified Locating Organisation
CERTLOC Certified Locators
NULCA Australia
BYDA · AS 5488
Local Buy prequalified supplier
Company Capability Statement · Revision 1.8 · August 2026 · © South-East Scanning Pty Ltd
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