Person working on plans at a table with maps, folders and an open book; a construction site is visible in the background.

Apply BFR KMR correctly to a construction project

A tender or report states ‘in accordance with BFR KMR’ – what requirements does this entail for your project? The Baufachliche Richtlinien Kampfmittelräumung describe a specialist approach and associated guidance. For application, scope, project phase and the result documents needed must fit together. As a private specialist company, FONTANA-EOD coordinates the commissioned investigation and documentation on the basis of your project documents. Provide the complete reference, available appendices and proposed ground intervention.

Scope of application

Clarify the relationship to the specific project.

Initial information

Distinguish the main text, appendices and supplementary materials.

Documentation

Understand the agreed records.

Read the explanation

Briefly explained

A guideline reference needs a specific context

BFR KMR apply to the federal properties and areas of responsibility specified in Chapter 1, including the construction measures described there commissioned by BImA and delivered through third parties outside the responsible construction administrations. The guidelines state that they are generally suitable for measures outside federal responsibility; their application there is connected with legal provisions and the specific requirements agreed for the project. The federal states retain responsibility for explosive ordnance disposal.

Read terms from the guidelines and project documents together

A technical term describes a particular level of evidence, activity or document function. For use in your project, this relationship is identified explicitly.

The official website provides the current June 2024 edition. Record in the project file which edition and requirements are used for the commission. For older reports, the edition applicable at the time remains part of the documented commission. For a new service, applicable requirements are determined again. Identify differences between tenders, amendments and result documents so that later review can identify the respective agreed task. Local and legal conditions are considered alongside this task description.

Suspicion and suspected area

Suspected explosive ordnance describes an initial situation requiring clarification. The suspected area gives it a spatial reference. For the project, check which evidence supports its boundary and which proposed interventions are affected. A historical representation and a current investigation plan serve different purposes.

Assess suspicion in relation to the project

Surveying and technical investigation

Surveying is a technical investigation service. Its task is defined by the investigation objective, volume and conditions. Technical investigation connects the survey with the specialist assessment needed. A method name alone explains neither the assessment achievable nor the full scope of commissioned work. Magnetometry records magnetic anomalies; TDEM records time-dependent electromagnetic responses from electrically conductive objects. Ground-penetrating radar can provide supplementary structural information in suitable ground. Highly conductive soils can limit its range. Assessment depends on the measurement volumes actually covered and the interference present.

Distinguish survey tasks

Clearance and recovery

Clearance means specialist work within an area with a defined clearance objective. For area clearance, investigations and any further work required are related to the area and clearance plan. Recovery concerns the proper retrieval of found explosive ordnance for its intended subsequent handling. Necessary authorisations, responsible authorities and execution conditions are clarified for the actual activity. The commission makes clear whether an investigation, work on individual findings or a more extensive clearance service is required and which handovers are included.

Distinguish clearance and recovery technically

Clearance and the documented assessment

An assessment of the area treated is read together with its area, depth, use and limitations. Documentation establishes this relationship. Where a project refers to clearance, clarify which document and decision are meant and which ground volume they actually concern.

Read evidence and its limits

EOD and UXO

EOD stands for Explosive Ordnance Disposal. UXO means Unexploded Ordnance and describes ordnance prepared for use or deployed that has not exploded. These terms are connected with the specific specialist service in the commission. Local responsibilities and necessary authorisations depend on the project location and actual activity.

Translate EOD requirements into specialist tasks

KBD and local responsibility

KBD stands for Kampfmittelbeseitigungsdienst, a public explosive ordnance disposal service. Other state designations, such as KMBD or KRD, are linked with the respective responsible authority. Client, private specialist company and authority each have specific project tasks and contacts. For application of the guidelines, it is clarified which information, coordination, notifications or decisions are needed at the site. Official correspondence is incorporated into further work with its appendices and spatial reference.

Assign authority and private tasks

BFR KMR, AH KMR and DGUV

BFR KMR structure specialist work within their scope. Chapter 1 uses the established designation Arbeitshilfen Kampfmittelräumung, or AH KMR, synonymously. The German Social Accident Insurance publishes information and rules for particular work tasks. For the project file, identify each document, its edition and the relevant requirements. Where several references exist, clarify which statement concerns planning, execution or occupational safety. Tasks involving investigation, assessment and clearance of chemical warfare agents lie outside the subject scope of BFR KMR; their technical and procedural requirements are clarified separately.

Distinguish the structure and functions of the guidelines

Excavation supervision

Investigation during construction is planned with equipment, personnel and a defined construction stage. Where conditions are suitable, successive ground layers are technically surveyed and assessed before removal; visual inspection supplements this procedure. The work is repeated to the agreed excavation level. Measurement access, occupational safety, responsibilities and documentation are coordinated with the commissioned intervention before execution. The stop signal, authority to issue instructions and reporting route for anomalies must also be defined. Whether this procedure can fulfil the task under local conditions is checked by specialists and agreed with the necessary authorities.

Describe the service during construction
Structure of the guidelines

Find the appropriate guidance

The parts of the BFR serve different purposes. When seeking a specific requirement, work from the technical context to the associated specification.

Main text and technical appendices

The main text describes the key principles. The appendices explain historical and technical investigation, clearance, occupational safety and documentation, among other subjects. Individual tables or forms should therefore be read with their associated explanations. For planning, the selected appendix is assigned to the relevant work step. A requirement for historical research concerns different data and results from a specification for execution or final documentation.

Service catalogues and specifications

Appendices A-7 and A-8 support description of engineering and commercial services. The technical specifications in A-9 assign requirements to individual phases or cross-cutting tasks. They help define a commission technically; the selection must fit the proposed scope. Record which specification belongs to which item in the service specification. The selection affects, for example, initial data to be provided, technical requirements for the work and result documents to be delivered. Supplementary requirements are identified with their specific project context.

Supplementary files and materials

Supplementary files are available separately, some in editable formats. Materials provide additional information and examples. An example from another property does not replace investigation of your own property and must not be adopted as evidence of a result without review. For editable templates, distinguish the original version from the completed project version. Site, author, date and associated appendices must be attributable to your project. Example data copied over is fully checked for its actual meaning before use.

Phases and decisions

Each phase answers a different question

The phase structure connects collection of evidence with its assessment and the resulting measure. The scope needed in an individual case depends on the initial situation and the result of the respective specialist assessment.

Phase A and Phase B

Phase A covers historical investigation and assessment; Phase B covers technical investigation and hazard assessment. Further work needed follows from the respective specialist assessment. A historical indication and a technically investigated area have different evidential value. Phase A includes analysis of historical archival records, aerial photographs and existing documents. Missing sources and spatial uncertainties remain part of the assessment. Phase B obtains the technical evidence needed for hazard assessment. Progression is justified by the result; completed research therefore does not automatically trigger the same investigation for every area.

Phase C1 and Phase C2

C1 includes clearance planning, tendering and procurement; C2 covers clearance, acceptance and documentation. The specific clearance objective and execution conditions must fit current or planned use. The explosive ordnance disposal process connects these handovers with the respective specialist decision. The clearance plan considers suitable solutions with their application limits and constraints. The service specification defines which work will actually be procured. For measures undertaken in sections, it remains clear which area has already been treated and which part is still planned or to be carried out.

Assessment as a decision point

Chapter 5 requires case-specific assessment of the investigated area or find location. This includes current and future use. A later changed intervention must therefore not be justified solely by stating that an earlier project phase has been completed. Changed use can entail different interventions and effects. Compare, for example, new foundations, an additional utility route or changed working depths with the situation considered previously. The responsible specialists use available evidence to determine what reassessment or additions are required.

Application to the commission

State requirements so that they can be checked

Establishing the planning basis under Chapter 6.2 begins with the reason, objective and requirements for planning. Existing documents must be compiled and checked for completeness. Missing evidence should be identifiable as gaps. For your commission, this means describing area, depths, proposed work and existing reports before deciding on a particular method. Alongside missing appendices, identify contradictory plan versions or unclear boundaries. If additional preliminary work is needed for clarification, it receives its own task description. Its results then inform further planning.

Next, specify the services and result documents needed. What requirements apply to spatial reference, handover format or records of restricted areas? Which documents will the client provide? For tendering and specifications, this information is related to a common task. State which plans, data and reports are to be handed over and who will use them. Separate services, such as surveying, preparatory work or further investigation of findings, are clearly identified in the quotation. The scope offered and service later invoiced can thus be compared objectively.

Read results

The documented scope matters

Under Chapter 8, work, data and results must be unambiguously traceable. Investigated or cleared areas must be locatable and their assessment verifiable. A report should therefore not merely state an outcome, but show the basis of the assessment and the area it covers. This includes the relationship between text and results plan and assignment of collected data to the service performed. For later review, findings, assessment and specialist conclusions must remain traceable even when project parties change.

The qualifications of commissioned parties and spatial scope of an investigation result are each evidenced separately. For clearance planning and clearance documentation, the commission, areas treated and documented limitations are considered together. The usable assessment follows from this technical relationship. Check, for example, whether the investigated depth refers to the same ground surface as the planned foundations. An assessment for a single borehole point is recorded with its location and depth; neighbouring or subsequently relocated points require their own comparison.

Turn unclear guideline references into specific decisions

Unclear information about area, depth, service or result is clarified before further commissioning. For existing reports, comparison begins with the planned intervention and associated appendices.

The bill of quantities contains only an abbreviation

First relate the reference to the result required. Which area, depth and phase of work are meant? Then identify relevant requirements and documents to be provided. This establishes a verifiable scope of work rather than leaving the entire task clarification to a single abbreviation.

Compare existing results with the new intervention

Compare the investigation, plan version and current construction activity. Additional depths, relocated points or new working areas may exceed the existing record. Specialist assessment determines what additions are needed. An old guideline reference does not automatically cover such a change.

The final report states a limitation

Read the limitation together with the site plan, method and result assessment. It must be clear which area is affected and which assessment remains unresolved. For the next work step, possible additional investigations or other necessary decisions are related to this specific volume.

Derive a verifiable requirement from the technical context

The same task should remain identifiable across the guideline chapter, service specification and results report.

Identify the assessment required before selecting the method

First describe the decision to be prepared. Historical assessment, technical investigation of a borehole point and records of completed clearance work are different tasks. Only this context shows which requirements and documents are relevant to the commissioned service. For an older report, the first task may be to locate a plan appendix or have the author explain an unclear statement. Additional fieldwork is justified by remaining evidence needs and its scope defined in advance.

Provide execution constraints

Existing utilities, ground composition, technical sources of interference, accessibility and construction status may affect the investigation. Record known conditions separately from unresolved information. This identifies the assumptions underlying planning and questions still requiring clarification before execution. Distinguish explosive ordnance investigation from locating existing utilities and other specialist tasks. A densely occupied utility corridor may restrict access and interpretation. State who will provide utility records and which investigation areas remain restricted for the time being as a result.

Require the result and spatial reference together

A traceable report connects assessment, investigated volume and documented limits. Identify the plans and data the client needs for further planning. Different versions, missing appendices and unclear labels otherwise make reliable assignment to the proposed construction activity difficult. Agree whether editable plan data or other digital results are needed alongside the report. Digitale Bestandsdokumentation KMR (DigBestDok KMR) represents an extract of the data; measure-specific reports and appendices remain important for traceability. The recipient and filing of complete documents are defined.

Assign the specialist task to the appropriate service

The guidelines provide a methodological context. The specific service is described according to the investigation objective, intervention and local conditions.

Workstation with two screens showing aerial photographs and maps, and printed documents on the desk.

Historical evidence for the affected ground volume

A historical assessment is connected with the area to be considered and available sources. Identify documents already available and the unresolved question. Results support further specialist assessment; the subsequent decision follows from the evidence obtained. Historical aerial photographs are compared with conditions at the time of photography and the current location. Intervening filling, excavation or changed property boundaries are considered in establishing spatial reference. Sources and remaining uncertainties form part of the assessment.

Person beside a survey instrument on a construction site; a wheeled excavator with drilling equipment stands behind them.

Individual deep points and foundations

For drilling, piles and other deep interventions, specify location, dimensions, depth and construction method. Measurement conditions and possible obstacles form part of the task. The assessment needed is related to the specific point and connected with the later record. For a deep-ground or downhole survey, starting elevation, structural alignment and final depth are considered together. Investigations required before drilling are incorporated into the sequence. The assessment requested as a borehole clearance statement is connected with the point actually investigated and the depth interval documented for it.

Person with a tablet at the edge of a cordoned-off excavation, with an excavator behind.

Investigation at a defined construction stage

If work is only possible during construction, timing, access and technical service are defined specifically. A general reference to supervision does not yet describe this scope. Planning must also consider responsibilities, necessary documents and documentation of unresolved areas. Before work begins, the sequence of technical surveying, assessment and controlled layer-by-layer removal and the response to anomalies are agreed. If a section cannot be investigated as planned, further specialist clarification is arranged before subsequent work affected by it.

Relate guideline requirements to project conditions

The same specialist approach is connected with different affected ground volumes and handovers depending on the project.

Montage showing building construction, a railway, a utility trench, energy facilities, industry and road construction.

Route with changing construction sections

Chainage, crossings and additional working areas create different spatial references. Documents should show which section evidence or a completed service is assigned to. Excavations added later or relocated alignments are compared with the existing investigation status before results are reused. Distinguish the actual utility or route alignment from launch and reception pits and storage and assembly areas involving their own interventions. A section-specific plan records which investigation relates to which ground volume and which interface remains unresolved.

Define requirements for route sections
Montage showing building construction, a railway, a utility trench, energy facilities, industry and road construction.

Construction work within an existing facility

Operations, installed infrastructure and changing access affect planning and investigation. The commission identifies these conditions and the proposed construction activity. Technically restricted areas remain identifiable. Further coordination connects the specialist report, operator requirements and upcoming construction decision. Agree contacts for access and operational constraints. Limited working windows are compared with the investigation service needed and necessary prerequisites. Restricted accessibility is identified in the result for the affected area.

Account for existing conditions in the specialist task
Montage showing building construction, a railway, a utility trench, energy facilities, industry and road construction.

Phased site development

For a later extension, first clarify the spatial scope of existing results. Additional areas and depths are identified explicitly. The project file records which areas have already been treated and what task is still needed for the next development stage. Where areas are handed over separately, they receive unambiguous names and associated plan versions. Later site management can then identify the documents belonging to its section. The handover for the first area is recorded in the overall file with its own scope.

Connect development sections with the record status

From a guideline reference to a traceable project commission

The project question, available evidence and planned use determine the scope needed. Before each additional service, it is clarified which unresolved question it should answer and which documents will then be needed for the construction decision.

01

Identify the project question and reason

State the proposed intervention and wording of the existing reference. Clarify whether a commission is being prepared or an existing result is to be used. Add who needs the technical answer and when a decision is planned. For several areas, questions are identified separately so that an answer for one section is not unintentionally applied to the whole project.

02

Assign the edition and documents

Compile the service specification, appendices, plans and reports. Different versions and missing information are made visible before individual requirements are selected. An appendix list helps check whether maps and data mentioned in the text are actually available. In particular, identify missing results plans, different dates or property boundaries changed later. Queries are assigned to the relevant document.

03

Add historical evidence where needed

Existing historical assessments are checked against the affected ground volume and their source basis. Missing information is connected with the specific evidence needed. Where necessary, archival records and aerial photographs are assessed additionally. The assessment records the basis for suspicion and the further specialist work it entails for the area considered.

04

Define method and investigation volume

The investigation objective is derived from existing historical and technical evidence and the proposed intervention. Ground composition, known infrastructure and metallic interference help determine method suitability. A point investigation for foundations has different spatial requirements from investigation of an excavation area. Selection considers the location and depth reference needed and the conditions of later execution.

05

Describe investigation and handovers

Area, depth, measurement conditions and the result needed are defined. Selected requirements are related specifically to the service and eventual recipient of the documents. Specify required access, available working windows and preparatory work. The parties agree when investigation can take place and which conditions must first be established or investigated. Requirements for horizontal, elevation and depth references are defined before execution.

06

Perform and document the commissioned specialist service

The commissioned investigation or clearance service is performed within the agreed ground volume. Measurement data and findings are recorded with horizontal, elevation and depth references and the plan version used. The actual scope performed is recorded traceably. Findings, measurement limits and unresolved areas remain part of the specialist assessment with their spatial reference. During execution, deviations from the planned ground volume or measurement conditions are documented for the affected section. For recovered ordnance, the clearance record states location, depth and result. Data is connected with the finding that prompted the work and the associated plan appendix.

07

Evaluate findings and record assessment limits

The specialist company interprets measurement data and findings and assesses their significance for the proposed intervention. The report separates the supported assessment from unresolved anomalies and areas not yet investigated. Necessary follow-up investigations or further work on findings are assigned to the respective section. Results are handed over with associated plans, documented limits and the specialist conclusion.

08

Use results for the next decision

Report and plans are read together. For the next construction phase, it is checked whether the intervention and documented scope correspond or further coordination is needed. Site management receives results needed for upcoming work with their associated conditions. Changes to alignments, elevations or depths are reported to the responsible specialists. Further use of results follows this comparison.

Choose your starting point according to the unresolved project question

Depending on the initial situation, the service scope, existing records or a specific query takes priority.

Prepare an investigation

Describe the intervention and desired assessment. The appropriate specialist service is selected on the basis of this task and actual conditions. For a sound quotation, required services, information provided and prerequisites still needing clarification are described separately. State whether an investigation before excavation or specialist-coordinated work during construction is to be considered.

Select the service by investigation objective

Understand a report

Read the result and spatial scope together. Identify missing appendices and the decision for which the record is to be used. Mark the specific passage or plan area you have a question about. Include the whole relevant appendix. This keeps clear whether an explanation, additional assessment or new investigation is needed.

Compare assessment and document scope

Consider the project location

Identify the property and authorities already involved. Local procedures and existing official information are connected with the specialist task. Submit existing official correspondence with file references and appendices. Clarify responsibilities for the site and identify contacts at specialist authorities already involved. Site-specific requirements are assigned to the specific measure.

Identify the local case for coordination

Discuss the specific guideline reference

FONTANA-EOD can coordinate the private specialist task with you on the basis of your documents. Submit the exact wording and associated design. Also identify the recipient of the answer needed and the planned decision date. For questions about third-party reports, their authors are consulted to clarify the underlying assessment and scope of work.

Clarify the guideline reference with project documents

Organise documents around the commissioned task

An understandable project file connects the initial situation, completed work and specialist conclusion.

Background information and task

The site plan, property reference, earlier reports and historical evidence form the documented starting point. Planned work is described with area and depth. Missing documents remain identifiable so that they are not silently treated as clarified information. Document which data has been adopted and which version it comes from. An earlier report on part of the site retains that boundary. The current design receives its own plan version so that later changes remain identifiable by comparison.

Work and result assessment

Measurement data, survey results and assessment of findings are connected with the method and volume investigated. Known interfering objects and limitations receive a traceable reference. The assessment should remain understandable to someone not involved in the investigation. For review, collected data, its interpretation and the resulting assessment are connected traceably. An identified object is distinguished from a measurement anomaly still requiring clarification. Assignment remains consistent in the text, findings list and plan.

Completion and subsequent use

The report, results plan and, where applicable, clearance record describe the scope performed. The conclusion is passed on with unresolved areas and follow-up decisions needed. A later design change is checked against this documented status rather than simply adopting the report title. Within the scope of BFR KMR, Chapter 8 provides for indefinite retention of documentation by the client. Define filing arrangements and responsibility for complete documents accordingly. Report, data and plan appendices should remain retrievable together even after construction is complete.

Define the guideline reference for a proposed excavation

Are you preparing excavation, a construction pit or an investigation during construction? Describe location, depth, construction status and known anomalies. Include existing reports and the exact guideline reference. FONTANA-EOD can use these to coordinate the private specialist task and documents still needed with you. State which construction phase begins next and which ground volumes will actually be affected. Existing utilities, ground composition, known interference and available access belong in the enquiry, as do outstanding report or plan appendices.

Clarify the excavation task using existing documents

How to recognise a clear task description

Requirements should remain traceable from the initial commission to result handover.

Specified edition

The guideline version used is identified.

Defined task

The specialist assessment needed is described.

Identifiable volume

Area, depth and plan version are connected.

Known conditions

Access and limitations are considered.

Suitable handover

Report, data and plans have a clearly defined recipient.

Traceable change

New interventions are compared with the existing scope.

Connect the guideline reference with the local case

The specific site and documents already available are decisive for coordination.

Illustration of a map of Germany marking Wesseling and Gersheim in front of a construction area, with construction plans and a hard hat beside it.

Property and parties already involved

State the municipality, address and, where applicable, plot reference. Include existing official correspondence with appendices. This makes clear which local requirements are already known and which specialist question remains unresolved. For several properties or construction sections, official information is assigned to the correct area in each case. Information about a neighbouring area is submitted with its actual spatial reference and assessed by specialists in relation to your construction site.

Understand the project location and existing official information
Survey cart on an open construction area, with piles of soil in the background.

Documents for a defined ground volume

Describe the construction site, route or individual points and proposed intervention. Include the report or service specification containing the BFR reference. The enquiry should make clear what assessment you need for the next step. For changes, add both former and new plan versions. Mark the area for which an assessment is needed so that coordination can relate to the upcoming construction task.

Enquire about the task with a site plan and documents

Connect background information, investigation and documentation

Documents serve different purposes, which should remain identifiable in the commission and result handover.

Workstation with two screens showing aerial photographs and maps, and printed documents on the desk.

Historical evidence as the starting point

Available sources, the volume considered and assessment determine the conclusions of historical work. For further planning, clearly record which evidence exists and which questions a technical investigation should answer.

Place historical information in its technical context
Two people with a tablet beside a marked construction area; plans lie in the foreground.

Specific technical specialist service

The investigation objective is connected with area, depth and conditions. Selection of equipment or a method follows from this task. State whether historical evidence is to be assessed, a ground volume technically investigated or preparatory excavation accompanied by specialist work during construction. Additional services are derived from the unresolved question and agreed with their own result scope.

Compare investigation task and service
Two people discussing plans at a table beside a vehicle on a construction site.

Record with a traceable scope

Report and results plan explain the work actually performed. For later use, spatial reference, limitations and outstanding follow-up measures are considered together. The documented status thus remains understandable even when project parties change. For a partial handover, defined areas and areas not yet treated are recorded separately. The recipient receives the relevant documents with the horizontal and elevation references used. A brief summary is used together with the full report.

Hand over results and assessment limits
MALÅ ground-penetrating radar with operators on grass during a FONTANA-EOD project
Person in an orange vest on a construction site with ground markings and small piles of soil
Questions and answers

Frequently asked questions

Which projects do BFR KMR apply to?

Their direct scope concerns the federal properties and areas of responsibility specified in Chapter 1, including the measures described there commissioned by BImA. For other projects, the guidelines may be used as technical guidance and requirements agreed. The legal and contractual basis is clarified for the specific commission. The German federal states retain responsibility for explosive ordnance disposal; local procedures are coordinated with the planned specialist service.

Which edition is currently offered officially?

The official BFR website lists the June 2024 edition. The edition used and relevant requirements should be documented for a commission. Check the publisher's offering again before a new application. Different editions in older documents are assigned to their respective commissions. A newly agreed requirement is documented with its relationship to the current service.

Are AH KMR and BFR KMR different procedures?

Chapter 1 uses the established term Arbeitshilfen Kampfmittelräumung, or AH KMR, synonymously. The abbreviation alone does not establish which edition, service or investigation a particular report refers to.

Must all phases always be carried out?

The phase structure represents the specialist decision process. Further work needs arise from evidence and assessment; the guidelines also describe specific approaches for individual finds, small measures or emergency measures. This does not imply a general exemption from necessary planning. The decision is justified by the responsible specialists in relation to the specific initial situation. The project file retains a traceable record of which evidence supports the next step and which area is being considered.

Which area does a report under BFR KMR relate to?

The work performed, objective, methods used and documented limits are decisive. Area and investigation depth are read with the associated plan and elevation reference used. Restricted or unresolved areas remain identifiable. Specify the next intervention so that any additional work needed can be checked for the same spatial task. For other areas, deeper interventions or relocated points, applicability of the existing result is checked separately.

Which cost factors matter for an enquiry?

The effort depends on the unresolved specialist question, affected ground volume and result needed. Historical research, technical investigation, clearance planning and further investigation of findings have different scopes of work. Area, depth, accessibility, interference and the quality of existing documents affect planning. Submit the task, affected ground volume, reports with appendices and desired form of result. Required services and missing information can then be defined specifically before commissioning.

What should be considered when older documents use different editions?

Record which edition underlies each commission or report. The requirements needed and current project status are agreed separately for the new task. An older report is neither accepted without review nor rejected outright solely because of its designation. Have unclear terms explained in the context of the original commission. Only comparison with the new affected ground volume and assessment needed shows which existing results are usable and where additions are required.

What should I do if I find possible ordnance?

Stop work in the affected area, do not touch or move the object and leave the danger area. In Germany, notify the police immediately on 110. Report the already known find location and your observation from a safe distance and follow the instructions of the responsible authorities. Do not approach again for photographs or your own identification. Project documents can be provided to the responsible authorities to help assess the known situation.

Prepare your enquiry about the existing guideline reference

Complete documents make the specialist question tangible and facilitate targeted coordination.

Wording and document context

Send the relevant service specification or full report with appendices. Identify edition, date and plan version. Isolated wording may omit important limitations or the actual commission scope. State the exact item or passage you have a question about. Submit the appendix list together with the files actually available. Identify unknown or missing information so that clarification needs are apparent before commissioning.

Location and proposed construction activity

State the address, region and property. Mark the construction site, route or borehole points on the site plan. Add depth, construction method, schedule and known existing utilities. Additional working areas are also shown if interventions are proposed there. Add current construction status, available access and known interference. Where depths vary or several construction phases exist, mark the areas separately. Starting elevations for drilling and the proposed reference elevation for foundations are specified explicitly.

Available evidence and decision needed

Include historical assessment, earlier reports and known authority conditions. Describe project status and missing information. State whether a service is to be tendered, an investigation planned or an existing result used for a new intervention. Identify contacts, result recipients and the desired decision date. Existing official correspondence and project-specific provisions are included in full. Where several questions remain, assigning them to the affected areas or individual points helps.

GPR on a construction site
Project enquiry

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.