Project pathway
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Explosive ordnance survey in Grevenbroich: findings and construction method
An aerial imagery analysis is available, but the construction plans raise further questions: which areas need investigation, and how are the proposed groundworks considered? For projects in Grevenbroich, FONTANA-EOD supports the specialist comparison between existing findings, the proposed construction method and the investigation service agreed.
Read the aerial imagery analysis with its maps and limitations.
Identify areas, depths and proposed methods.
Record the service required and responsibilities.
Assess the construction project
Derive a specific task from the existing findings
An aerial imagery analysis is assessed together with the planned construction project. For your Grevenbroich project, we compare its findings and limitations with the area, depth and construction method. The further investigation is described with its actual objective and permissible commission scope.
Project site
Connect the site with the specific construction task
Connect the Grevenbroich public order authority with the specific task
The citizen portal identifies Public Order and Trade Affairs 32.1 as the responsible department. Further measures are assessed according to the individual aerial imagery analysis and construction project; the state investigation result is also returned through the public order authority. For your specialist commission, these responses are assigned to the current groundworks and findings still needed. Grevenbroich is a town in the Rhein-Kreis Neuss district, within the Düsseldorf administrative district, in North Rhine-Westphalia. Identify the exact project address and work areas affected. For projects in another municipality, its local responsibility is clarified separately. The spatial reference connects the relevant analysis with the groundworks actually planned and the coordination required for them.
Local context
The aerial imagery analysis and construction plans belong together
Agree the Grevenbroich investigation according to the individual analysis
The Grevenbroich citizen portal describes further investigation as following from the individual aerial imagery analysis in conjunction with the planned construction project. The application goes to the local public order authority. It checks it and forwards it to the explosive ordnance disposal service where necessary. The investigation result is also returned through the public order authority.
Relate the construction method and analysis area to one another
The word construction project is therefore insufficient for specialist work. A shallow trench, deep excavation and proposed foundation elements raise different questions for the investigation scope. When this work is brought together using the same area markings, the report findings can be compared specifically with the construction design.
The city chronicle describes severe bombing raids between late 1944 and February 1945, with destruction in the town centre, at the station and at the former gasworks. For present-day projects, available historical findings are linked with the parts of the property affected and later ground changes. Former uses, reconstruction and changed work areas are assessed using their documents. The specific further specialist task follows from this state of knowledge, planned groundworks and applicable requirements. General town history does not establish an individual investigation status.
Requirements
Clarify technical requirements and responsibilities within the project
Relate requirements to the specialist task
For the commissioned activities, the relevant technical requirements and questions of permits, competence certification and responsibility are clarified. The actual planned service scope is decisive. A general company designation does not replace checking that the tasks and interfaces are described appropriately for the specific project.
Link occupational safety to the construction sequence
The risk assessment, working areas and communication must fit the planned activities. Explosive ordnance specialist works are coordinated with the other construction works. Operational organisation, traffic safety and other technical checks retain their own responsible parties. Joint coordination brings the information together and assigns tasks and decisions to the respective competent participants.
Use technical findings correctly
A measurement anomaly first requires specialist assessment; its appearance alone does not identify it as explosive ordnance. If an object is genuinely suspected to be ordnance, the prescribed reporting procedures and the measures set by the responsible authorities apply. Investigation reports specify the work completed and its limitations, so that results are not extended to unexamined areas or later design changes.
Procedure at the site: Town of Grevenbroich: ordnance investigation – procedure and prerequisites · Town of Grevenbroich: application for aerial imagery analysis · North Rhine-Westphalia KampfmittelVO: Section 3 in particular.
Planning and documentation: BFR KMR: principles of clearance planning · BFR KMR: geophysics · BFR KMR: documentation · DGUV: explosive ordnance clearance FAQ · North Rhine-Westphalia Ministry of the Interior: explosive legacy
The BFR KMR are used as technical guidance; locally applicable requirements and responsibilities must be clarified separately.
The permit, qualifications and responsibilities for the specific activity are assessed under the Explosives Act and the First Ordinance to the Explosives Act. The risk assessment under Section 5 of the Occupational Safety and Health Act relates to the planned activities. The DGUV Information 201-027 addresses preventive investigation and clearance of conventional explosive ordnance and defines its scope. The references it explains to DGUV Regel 113-003 concern specific activities involving explosives; they are not applied indiscriminately to every construction investigation.
Private works are subject to the exceptions under the KampfmittelVO and the requirements of the official guidance. The exceptions concern, in particular, downhole detection as part of specialist foundation engineering and explosive ordnance clearance during construction under the conditions laid down by law. Private explosive ordnance clearance during construction requires that prior investigation using recognised explosive ordnance detection methods is not possible. A relevant factor is also the state explosive ordnance disposal service's assessment that there are no specific indications of ordnance contamination on the site concerned. All further spatial, technical and organisational requirements are clarified for the specific activity. The competent authorities decide on the official appointment.
Working together
Allocate tasks within the construction project
Client and operator
The client describes the project and provides the available project documents. The operator adds requirements relating to use, access and scheduling. The participants agree their respective tasks and decision-making responsibilities. A coordinating contact person brings the project information together. Before an appointment, it is recorded clearly which information is missing, who will obtain it and which decision the result is intended to support.
Planning and construction management
The specialist designers describe areas, depths, construction methods and changes. Site management coordinates the planned sequence with the construction contractors and agreed specialist works. Results are assigned to the respective intervention. A technical plan change is communicated early enough for its effect on the survey task to be assessed before construction. Organisational construction stage boundaries remain distinguishable from technical survey boundaries.
Specialist company and competent bodies
The private explosive ordnance specialist company carries out the agreed permissible investigation and documentation scope. Authority requirements and decisions are clarified with the respective competent bodies. The documents needed for a specific procedure depend on the site and project. The technical report documents the specialist service performed, including areas, depths and limits of its conclusions. Its applicability to further groundworks is checked against the specific intervention.
The local public order authority of the town of Grevenbroich processes the application and clarifies the measures required according to the individual analysis and construction project. The state explosive ordnance disposal service at the Düsseldorf District Government supports the competent authorities. In the state procedure described, the investigation result goes to the public order authority for assessment and further notification. Any permissible private specialist service is agreed with its own commission and documentation scope.
Investigation task
Which specialist task comes next?
Define the question before selecting the method
The findings and planned use determine which information is still missing. Only then are suitable investigation options and their prerequisites considered. An equipment name does not fully describe the specialist task. The comparison considers local measurement conditions and the findings required for the specific groundworks.
Assess historical documentsInclude the official status in the commission
The local public order authority processes the application and arranges the state investigation through the procedure described. A supplementary private service is agreed separately. Check its legally permissible scope in North Rhine-Westphalia in advance. The specialist commission identifies its own limitations and does not replace official coordination still required.
Compare investigation methodsProject types
Describe further work precisely
Use the complete findings
Text, map and attachments form the basis of assessment. Without explanation, an individual marked area does not establish which findings are available. Provide the complete analysis with its date and reference. Unresolved areas and those assessable only to a limited extent remain explicitly identifiable when defining the next task.
State the revision used for current planning and the construction phase affected. Where several parts of the site are involved, their respective indications and outstanding questions remain assigned separately. An additional excavation needed or a different connection is identified as a change. Missing legends or map attachments are requested from the issuer. Further work then relates to the complete information and actual location of the proposed work.
Document findings and their limitations
Show construction methods with their groundworks
Foundations, retaining works and utility work may affect different areas. Identify the respective areas and depths and assign them to the current design. A shared project name does not replace this distinction. Specialist work can then be directed at the findings actually required for each partial task.
Also describe the working areas and volumes needed for the construction method. Changed retaining works or an additional launch or reception pit may extend beyond the construction area originally shown. Depths are stated with the relevant ground or elevation reference. For specialist assessment, these ground areas and volumes are compared with existing results. Findings still missing are identified specifically before the corresponding work and agreed with the further work needed.
Specialist services and investigation tasksRecord the agreed scope clearly
Describe which question the commissioned activity is intended to answer. Include prerequisites and known limitations. Subsequent documentation must identify this scope. For later groundworks or plan changes, the applicability of results is checked against the ground intervention then proposed.
Define which results documents belong to the agreed task. For a spatially limited investigation, identify the points or areas investigated. Inaccessible areas and measurement limitations remain identifiable. This information helps subsequent planning assign findings to structures and work locations. If a new question arises later, existing results and any addition needed are each treated with their own scope.
Coordinate the sequence and tasksPreparation
Prepare the scope and commission together
Historical preliminary assessment, technical investigation and specialist work during construction answer different project questions. The permissible private activity under the specific North Rhine-Westphalia procedure is clarified with the information objective and necessary authority involvement before an agreement.
Establish what needs to be known before commissioning the work
For the Grevenbroich commission, the individual aerial imagery analysis and current construction design are provided together. Identify the findings still missing for the proposed groundworks. A shallow trench, deep excavation or foundation elements affect different ground areas and volumes. The findings available are therefore linked with area, depth and construction method. This determines the next specialist task: assess documents, investigate an identified area or address a finding already assessed. The permissible commissioned service and results documents required have a clear scope.
Define the specialist taskCoordinate preparatory work with the investigation
Before the investigation appointment, it is checked which areas in the construction design are actually accessible for surveying. Existing utilities, installations and coordination with other trades form part of preparation. The preparatory work required follows from the method and site conditions. An area marked in an analysis does not yet describe an unrestrictedly accessible survey area. Additional breaking of the surface or other groundworks to provide investigation access are professionally prepared with those responsible and are not undertaken independently. Outstanding prerequisites are assigned to the work area affected.
Clarify preparatory work in the programmeAgree a clear scope and schedule
The scope of private specialist work is agreed using the project documents, actual execution conditions and permissible activity. Necessary preparatory works, investigation, evaluation and documentation are described transparently. Costs and dates are related to these prerequisites and the required coordination. Changes to the construction plans are checked against the agreed contract before work is extended.
Discuss the scope and scheduleTasks at the site
What the document set must identify
01
Unambiguous area outline
The local form requires a map extract with areas marked unambiguously; property boundaries and at least two street names should be included. Use the same spatial allocation for further planning. If a construction area is enlarged later, this must be explicitly identifiable in the comparison.
02
Complete analysis
Keep the aerial imagery analysis text and map together. Do not transfer an indication to the entire property without assessment if it concerns only one part. Conversely, an area not addressed must not be treated as resolved merely because it belongs to the same construction project.
03
Type and depth of work
Describe the groundworks so that the construction task investigated is understandable. In a project involving foundations, retaining works and utility connections, these elements should remain separately identifiable. Also identify changes from the plan revision on which an older response is based.
04
Access and existing utilities
Clarify who may enter the area and which utilities or other installations must be considered. The citizen portal lists permission to enter and a declaration of freedom from utilities among the documents required. Unresolved information is clarified with those responsible before the affected investigation.
Project documents
Documents that establish the next step
Distinguish the application from work carried out
Registering a measure does not describe its execution. Record the procedural status and results actually available separately. A report identifies the area investigated and its limitations. These details are linked to the proposed construction work rather than inferring a completed investigation from an earlier application.
Changed work or work carried out in sections is documented with the relevant plans. Identify when an area was actually accessible and which part of the agreed work was completed. An area investigated later receives its associated results documents. The combined project record shows which specialist question was answered by which report. After clearance work has been carried out, the clearance record, including its scope, results and remaining limitations, is assigned to the area actually treated and the relevant site plan. Outstanding prerequisites are passed on with the affected area to those responsible for further coordination.
Reuse results selectively when changes occur
An existing report may remain relevant within its documented scope. Compare it with the changed location, depth or construction method. Additional findings needed are identified specifically. Further specialist planning then builds on the knowledge actually available and does not transfer results solely because the client is the same.
Assign older depth information to the ground surface used at that time. If soil has since been removed or added, this change is considered when assessing applicability. A new construction stage or relocated foundations are shown with the working areas and volumes needed. Specialist planning checks which existing findings cover this task. Before additional or preparatory groundworks, the investigations and protective measures required are clarified; specialist services still needed remain specifically identified.
Construction sequence
Coordinate investigation and construction sections
Compare plan revisions after receiving the analysis
Assign the complete analysis to the current works. Identify additional ground interventions and unclear areas. These questions are clarified before further commissioning. Proposed construction work and the documents passed on use the same spatial reference so that the scope of the next stage is unambiguous.
Hand over actual results after the investigation
Summarise the services carried out with maps and limitations. Identify areas still unresolved or additions outstanding. Site management receives the documents relevant to its area. Before the affected work, changes are compared with these results again and, where necessary, coordinated afresh.
Method selection
Select methods according to the task and survey conditions
Historical records and aerial photographs
Historical aerial imagery analysis and other older documents help to place the basis for suspected ordnance in its spatial context. For further investigation in Grevenbroich, available imagery, its information value and the boundaries of the individual analysis are compared with the construction design. The absence of a visible indication is not a technical investigation of the ground as it is today. Historical assessment is linked with other findings and the planned construction method. If different groundworks depths are planned under the same area marking, this distinction remains identifiable. Findings about the historical situation do not confirm all future groundworks as a blanket statement.
Understand aerial photograph assessmentMagnetometric survey
Magnetometric methods detect magnetic anomalies. Suitability for the findings required by the construction design is assessed according to expected objects, ground conditions and the investigation area and volume. Fences, utilities and existing structures can influence interpretation. Signal strength alone does not identify ordnance. Measurement, assessment and further investigation required are linked with the specific construction method. Magnetometry measures the magnetic field passively. What matters is the magnetic effect of the object being sought; electrical conductivity alone does not make it detectable by this method.
Understand the scope of magnetometryElectromagnetic methods
Electromagnetic investigations may be suitable for certain metallic target objects and site conditions. Selection is justified according to the ground area and volume and findings required. Interfering installations and accessible survey areas are considered; equipment availability alone is insufficient. Results include their location and investigation conditions. Any addition required follows from specialist assessment and the task still outstanding for the planned construction method. Transient electromagnetic methods, or TDEM, evaluate the electromagnetic response of conductive objects over time. The method is selected according to the investigation objective and actual measurement conditions.
Understand electromagnetic surveyingGround-penetrating radar
Under suitable conditions, ground-penetrating radar can provide information on subsurface structures and reflections. Ground conditions, moisture and installations affect interpretability. A reflection is not automatically ordnance; an unremarkable area does not establish any arbitrary investigation depth. Interpretation and limitations are documented with the commission. An existing radar report prepared for other purposes is checked before use as ordnance evidence. For the new construction method, what matters is whether its findings cover the ground area and volume actually affected.
GPR and limitationsDeep-ground and downhole surveys
For deeper groundworks, it may be necessary to check whether investigation from the surface can provide the information required or whether another approach is needed. For foundation elements or deeper parts of an excavation, location, depth, elevation reference, borehole layout and existing utilities are brought together. The provision of suitable investigation access is professionally prepared. A standard grid or general depth figure does not replace this task. Results remain tied to the areas actually investigated and the method used. A result for shallower groundworks is not extended to the deeper construction design.
Prepare deep interventionsSurvey during construction
If a necessary advance investigation cannot be completed in full, it is assessed whether a professionally planned approach during construction is suitable. Investigation, interpretation and communication of findings are linked to the specific construction work proposed. Visual observation of excavated material alone does not replace a necessary ordnance survey. Site management receives a description of when specialist work takes place, how new findings are handled and which areas remain unresolved. A change in construction method is compared with this approach before the affected activity. Local responses are included with their actual findings.
Agree the approach during constructionTechnical assessment
Derive a specialist task from the available findings
Use historical sources correctly
The historical aerial photograph analysis describes findings from its sources, not the result of a ground investigation already carried out. Its limitations are as relevant to the next step as the indications it contains. A map extract without explanation leaves the specialist assessment incomplete.
Historical analysis and a subsequent measurement are recorded in the file with their respective purposes. For a focused addition, the outstanding question, part of the site affected and construction method actually proposed are described. A report received later is assigned to the question addressed by it. Relevant attachments and details of remaining limitations stay together. Where several results are available, it is identified which findings are to be used for the next groundworks.
Align the investigation with the construction method
For a necessary survey the investigation objective, groundworks areas and measurement conditions are considered together. Installations can limit interpretability. Suitable methods are justified on this basis on specialist grounds; selection follows neither an equipment name alone nor a blanket depth figure. Selection considers in particular the depth of groundworks, ground composition, existing utilities, interfering objects and actual measurability. Where interpretability is limited, suitable additions or a permissible investigation during construction are agreed with their specific scope.
Identify unresolved areas
A clearance plan also describes the proposed approach where investigation is not readily possible. Limitations belong in the commission and later in the report. Professional explosive ordnance clearance during construction must not be equated with visual observation during excavation alone. The results documentation describes the work actually carried out.
A task during construction is agreed with its permissible scope and the areas to be investigated. Documentation records the work area actually supervised, findings obtained and limitations remaining. Changed conditions are professionally coordinated. Further investigations needed remain assigned to the respective ground area and volume. For later comparison with the plans, this information is passed on with the agreed reports and plan attachments so that site management can trace the stage of work achieved.
Next steps
Keep each work step's status traceable
The analysis is available
Check which area and project the documents belong to. Record outstanding specialist questions before further services are tendered or commissioned. An existing analysis is a starting point, not confirmation that a technical investigation has taken place. State the project address and investigation question. Existing documents are checked for currency, area covered and gaps. Where historical information is missing, the necessary research is carried out. Any official aerial imagery analysis needed is undertaken by the responsible state service, and its findings are related to the current groundworks.
The measure is agreed
The official response and private specialist commission serve different purposes. Describe the commissioned scope according to the proposed groundworks. Make sure planning, area markings and documents passed on share the same revision status. The suitable method is agreed according to the information sought, depth of groundworks, ground composition, utilities and measurement conditions. Permissible commissioning and the prerequisites for carrying out the work are clarified.
The investigation has been carried out
The commissioned survey or permissible investigation during construction is carried out over the agreed areas and points. Measurement data and observations receive traceable location and elevation references. Record which services were actually carried out and where limitations remained. An area registered or only partly investigated must not appear as fully investigated in the project overview. Supplementary steps are assigned to their respective areas.
Assess survey data and findings
The collected data and findings are evaluated against the investigation objective. The technical assessment considers interference, the areas reached and remaining limits of the conclusions. It establishes which further investigation or work is needed for the planned groundworks.
Bring the report and plan appendices together
The report and plan attachments document the specialist works performed and their assessment. Worked areas, investigation depths, the relevant ground surface and limitations remain assigned. Reused older results and newly investigated areas are recorded distinctly. The agreed recipients receive the related documents together.
The result is reused
Hand over the report and associated plans to site management. Changed retaining works, a new utility or a relocated excavation may require another comparison. Whether additional investigations are needed is decided according to the specific change.
Documentation
The report must show the scope of its findings
Findings and their scope
The work carried out, areas investigated and conditions of assessment are documented. This includes inaccessible parts or parts with limited interpretability. A blanket confirmation for the entire property would conceal these differences. Clearly defined limits of results are particularly important for later plan changes.
Project responsibilities
Grevenbroich's procedural description and the applicable North Rhine-Westphalia regulations determine official responsibilities. The BFR Kampfmittelräumung provide specialist planning and documentation principles that apply directly to federal property. FONTANA-EOD carries out the agreed permissible specialist scope. Official decisions and state duties remain with the authorities responsible for them.
Working approach
How FONTANA-EOD works
Document the agreed specialist service clearly
FONTANA-EOD carries out the agreed specialist task on the basis of the individual analysis and current Grevenbroich construction design. Before work begins, accessible areas and results required are agreed. If area, depth, construction method or site conditions change, the scope is assessed before the affected work. The report documents the work actually carried out and its limitations. Site management can trace which findings fit which activity and where further clarification is required. The investigation scope commissioned is distinguished from the general project name.
Discuss the investigation taskThe task before the equipment
Method selection begins with the findings still missing for the proposed construction method. Specialist planning has the existing findings and specific ground area and volume available for this purpose. Available equipment or a neighbouring project with a similar description is not sufficient as the sole basis. Selection is justified according to actual conditions and the investigation objective. Different construction methods within the same analysis area are described with their respective findings required.
Keep limitations visible
Inaccessible areas or areas with limited interpretability are identified by location and the reason for the limitation. Site management can assign the relevant parts of the construction design and additions still needed to them. Findings concerning a large overall area are supplemented with these limitations. Planning and construction teams agree when a suitable investigation will become possible. The map remains linked to the ground area and volume actually investigated so that an outstanding foundation element or deeper part of the excavation remains identifiable.
Clarify changes before intervening in the ground
A different construction method, additional area or greater depth is compared with existing results before the affected activity. Specialist planning receives the changed design and its relationship to the previous investigation status. Its response and additions required are assigned to the changed ground area and volume. An unchanged property address or project name does not replace this comparison. Even within the same analysis area, the loading of the ground actually proposed remains decisive for the further specialist task.
Hand over the report and plan together
At handover, the relevant aerial imagery analysis with attachments and technical results reports with associated plans are provided in full. A short overview can point to findings, limitations and outstanding tasks for the next construction phase. It does not replace the documented investigation scope. Documents remain assignable to the respective construction work even when site management or contractors change. Further planning is linked to the actual results available and local responses.
Understand the results
Use technical statements for the next decision
A map boundary must match the task
The marked application area and work actually proposed are considered together. Additional areas are explicitly included in further comparison. A spatially appropriate map alone does not describe an investigation depth or specialist findings. These details follow from the associated task and respective report.
Understand investigation reports and their limitationsHistorical findings and present-day measurement results complement one another
The documents come from different stages of work and retain their respective purposes. A survey report is read with its conditions, an aerial imagery analysis with its sources and limitations. Neither document type replaces the other as a blanket measure. For planning, their findings are related to the groundworks actually proposed.
Understand the service scopeDesign and findings
Documents for the next construction decision
Historical evidence and the current design
Aerial photograph interpretation is related to the actual groundworks. Its purpose and geographical scope remain distinct from a technical investigation of the ground as it is today.
Understand aerial photograph assessmentSpecialist reports for site management
The findings, their locations and limitations are handed over together. This makes clear to those carrying out the work which area has been investigated and which task remains outstanding.
Assess investigation reports
Further technical topics
Further technical information for your project
Determine the specialist service from the planned groundworks
Historical assessment, technical investigation and further work answer different questions. The enquiry describes the outstanding task, affected areas and depths, and the results required. The permissible scope of services is agreed in line with the actual conditions and responsibilities.
Compare servicesCoordinate the project sequence with everyone involved
Preparation connects the commission, site work and handover of findings. Changes to the project can then be incorporated into technical coordination in good time.
Process and documentationQuestions from planning
Questions about investigation after aerial imagery analysis
What follows an aerial imagery analysis with indications in Grevenbroich?
The further steps depend on the individual analysis and planned construction project. The application for the corresponding investigation is submitted to the local public order authority. Agree the measure required there rather than selecting a method solely from an individual indication.
Which map does the local application form require?
An extract from the cadastral map is required, with investigation areas clearly marked, cadastral or property boundaries and at least two street names. For specialist planning, the actual groundworks and their depths must also be described.
Does an area investigation automatically cover every later foundation?
This can only be assessed using the report and specific plans. Compare area, depth, method and limitations with the proposed foundation elements. A general project name is insufficient.
Who receives the result of the state procedure?
According to Grevenbroich's service description, the explosive ordnance disposal service informs the local public order authority. It checks the result and passes it on or clarifies further investigations required. Documentation of a privately commissioned specialist service must be treated separately.
How should I respond to a suspicious object?
Stop work in the affected area, leave the object undisturbed and move away. Warn other people and notify the police immediately by calling 110. Further assessment and measures are the responsibility of the emergency services concerned.
What must a service description identify in addition to the area?
The question to be answered, proposed groundworks and depths, prerequisites and known limitations. The official status and permissible private task are also assessed.
Can an individual map replace the complete findings?
No. The map is read with the report, legend and attachments. Only this context describes the origin and limitations of the indications shown.
Which cost factors matter for additional foundation elements?
Their location, depth and construction method are compared with existing results. The findings still required are agreed specifically before construction. The effort depends on usable previous documents, preparatory work and access required, the area or number and depth of investigation points, a suitable method, measurement conditions, and interpretation and documentation. Any specialist services still required are offered for the specific outstanding task with their permissible scope.
Project enquiry
Prepare the first technical discussion
Send the complete analysis
Include the report, maps and attachments with their respective revision status. Identify the relevant plan revision and associated work areas. State the project address, proposed construction phase and contact for outstanding questions. Missing attachments are explicitly identified and requested specifically. If the design develops further, explain which groundworks have been added. The specialists involved can then assign existing findings to the next work step required.
Explain the construction method
Show foundations, retaining works and further ground interventions with areas, depths and changes. Also show lateral working areas, connections and preparatory exploratory openings. Communicate known utilities and restrictions on access. The investigations and protective measures required are clarified before each ground intervention. For an area clearance or recovery task, the scope required and permissible commissioning are agreed with the competent authority. Details still outstanding are recorded as specific questions during preparation and updated with documents received later.
Investigation methods and technology
Investigation methods and technologyFrom enquiry to documentation
From enquiry to documentationAssign the region and project location
Assign the region and project locationUnderstand the construction task and project setting
Understand the construction task and project settingCoordinate the necessary recovery task
Coordinate the necessary recovery task
Have your project assessed
Whether historical aerial photograph analysis, explosive ordnance surveying, surface surveying using GPR, magnetometry or TDEM, deep-ground surveys, downhole surveys, excavation supervision, area clearance or ordnance recovery is needed depends on the location, ground disturbance, depth, ground and existing documents. An early ordnance assessment provides clarity for tendering, programming, occupational safety and construction.
FONTANA-EOD combines its Section 7 SprengG licence, specialists holding Section 20 SprengG certificates of competence, suitable survey and clearance methods, and traceable documentation. Send the site plan, depth of ground disturbance, construction phase and existing documents for an initial technical assessment.
