Project pathway
The quickest route to the right decision.
Explosive ordnance surveying in Bayreuth
For project owners, designers and site managers in Bayreuth, FONTANA-EOD relates existing explosive ordnance reports to the current construction task. Reports on ground conditions, contaminants and utilities are considered according to their respective investigation purposes. Send the complete specialist reports and current plan showing construction areas and ground disturbance depths so the explosive ordnance services still needed can be agreed.
Identify each investigation's purpose.
Relate results to the construction area.
Clarify outstanding questions in advance.
Assess the construction project
Is a list of reports enough to prepare ground works?
A list initially shows which documents accompanied a procedure. Specialist planning needs the complete reports with their locations, investigation objectives and results. Relate these to your current construction area and proposed depths. Ground conditions, contaminated land, utilities and explosive ordnance remain separate technical questions.
Project site
Connect the site with the specific construction task
Use Bayreuth's procedural documents for the specific task
The official gazette entry for the Nordring commercial site lists various specialist reports, including preliminary investigation and surveying. It records the documents available at that time. Your construction area needs the complete relevant reports. The city planning department provides information on ongoing and completed land-use planning procedures; the specific technical assessment follows your own design.
Bayreuth is an independent city in the Upper Franconia administrative district in the Free State of Bavaria. Identify the address, cadastral district and property, and the construction sections concerned, for the specific project. Local hazard response generally lies with the municipality as public safety authority; actual finds must be reported to the police immediately. The state explosive ordnance disposal service supports the authorities where legacy ordnance that has been found presents specific hazards. The Nürnberg disposal unit is responsible for Upper Franconia. Project-specific preliminary investigation and necessary private specialist services are coordinated with the project owner and responsible parties. For a project in another municipality, local responsibility follows its location.
Local context
Bayreuth's wartime history and existing specialist reports
Place the air raids of April 1945 in their spatial context
The Bayreuth City Archives' overview for 2025 identifies air raids on the city on 5, 8, 10 and 11 April 1945. The arrival of American troops on 14 April 1945 ended the war there. For a present-day construction task, relate these documented wartime events to the precise location of the construction area and available historical records. The necessary research considers aerial photographs, files and documented earlier uses relevant to the time and place. Include later demolition, made ground or utility changes where these are documented for the area concerned. Specialist planning assigns the findings to the proposed ground works and determines the question still to resolve.
Read the Nordring report list for what it establishes
Bayreuth's official gazette of 4 August 2017 lists various specialist reports for the Nordring commercial site, land-use plan 8/15. Preliminary explosive ordnance investigation and surveying appear alongside ground investigations, contaminated land, waste legislation and underground utilities. The list belongs to the public consultation at that time. It describes the documents available, rather than their complete results.
Obtain the documents for your own construction area
Such a report list is insufficient to prepare present-day construction work. The individual reports, maps and appendices are needed, along with their relation to the current design. The City of Bayreuth provides information on ongoing and completed land-use planning procedures; plan copies or extracts can be requested. Clarify whether further specialist documents are available for the specific property.
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
Risk assessment, work areas and communication must suit the proposed activities. Ordnance specialist works are coordinated with the other construction activities. Operational organisation, traffic safety and other specialist technical inspections retain their own responsible parties. Joint coordination brings the information together without equating the different tasks.
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.
The Bayreuth official gazette of 4 August 2017 lists specialist reports on several separate tasks for the Nordring commercial site. Through the Bayreuth city planning department, ongoing and completed land-use planning procedures and available plan copies can be related to the property. Further technical use requires the complete associated reports and their appendices.
The BFR KMR explain principles of clearance planning, geophysical investigations and documentation of results. The DGUV answers questions about explosive ordnance clearance. The Bavarian notice dated 13 August 2026 sets out hazard response, responsibility for properties and the tasks of the state explosive ordnance disposal service.
The BFR KMR are used as technical guidance; locally applicable requirements and responsibilities must be clarified separately.
Permits, competence and responsibility for the specific activity are considered 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 covers preventive investigation and clearance of conventional explosive ordnance and defines its scope. Its references to DGUV Rule 113-003 concern particular activities involving explosives; they are not applied indiscriminately to every construction-site investigation.
Working together
Distinguish the tasks of client, designers and specialist contractor
Client and operator
The project owner describes the proposed work and provides the available project documents. The operator adds requirements for use, access and timing. A coordinating contact makes cooperation easier but does not automatically take on every other party's duties. Before commissioning, record 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 carries out the agreed investigation and documentation scope. Official requirements and decisions are clarified with the competent authorities concerned. The documents needed for a particular procedure depend on the location and project. The technical report describes the specialist service performed; its conclusions are not presented unchecked as general authorisation for further groundworks or as an authority's decision.
Investigation task
Which specialist task comes next?
Determine the need from the conclusions actually available
The technical assessment begins with the complete available findings. Further methods are selected according to the outstanding questions, ground disturbance depth and local measurement conditions. An investigation method listed in an old directory is not commissioned again for that reason alone. The new commission follows the conclusions needed for the current project.
Base further investigations on the questions actually unresolvedClarify uncertain result boundaries before the next step
If a map is missing or a section is not clearly identified, resolve the gap before work that relies on it. This allows the investigation to be defined appropriately. Reliable existing results remain usable. Document uncertain allocation explicitly rather than replacing it with a simplified status label.
Compare investigation methodsProject types
Turn a document list into a reliable project basis
Obtain the historical assessment with its appendices
A brief title reveals neither the area investigated nor the report's conclusions. Request the associated maps and appendices too. The investigation objective, assessment status and limitations matter for comparison. Only these contents allow you to judge which findings can be used for your own planned ground disturbance.
Assign complete investigation reports and appendices
Distinguish the different specialist services
Several investigations may concern the same property while answering different questions. Assign each report to its task. A ground investigation does not replace explosive ordnance assessment; conversely, an explosive ordnance investigation does not automatically answer questions about ground conditions. Consider their respective prerequisites and results together for construction.
Compare specialist servicesHand over a clear record of the results available
Record which documents are available in full and whether later additions were prepared. The site management team needs the relevant reports, including spatial limits. A brief list remains useful as an overview but does not contain the technical conclusions themselves. Explicitly identify the current results supporting the next ground works.
Document findings and their limitationsPreparation
Prepare the scope and commission together
Establish what needs to be known before commissioning the work
First clarify which decision the commission needs to support. Is the task an initial assessment of existing documents, investigation of a specific area, or work on a finding already assessed? These tasks require different information. A general wish for safety does not define an investigation scope that can be carried out. The enquiry therefore identifies the ground disturbance, location, depth and available findings. Agree suitable specialist work and the results documents needed on this basis. Mark preparatory ground works on the current location plan too: demolition pits, new connections, shoring positions and working spaces, where these belong to the project. Specialist planning compares these ground works with the areas and depths of the existing explosive ordnance investigation. A report from another technical discipline remains available within its own commission. Agree the specialist work and results documents needed for the explosive ordnance question still unresolved.
Define the specialist taskCoordinate preparatory work with the investigation
Required access and survey conditions are clarified before the site visit. This may include keeping areas clear, obtaining service information and coordinating with other trades. The method and site determine which preparations are actually needed. Changes to the surface or additional groundworks are not undertaken unilaterally simply to prepare for a survey. Their sequence is agreed with the specialist designers and responsible parties.
Clarify preparatory work in the programmeAgree a clear scope and schedule
A reliable programme distinguishes tasks already technically resolved from prerequisites still outstanding. If an area will be only partly accessible, account for this when commissioning the work. Results handover and assessment also need time in the construction programme. An enquiry therefore does not produce a blanket commitment on timing or costs. Specific coordination relates the described scope to access, documents, construction conditions and the date a decision is needed. Identify areas already accessible and those that can be investigated only later in construction. Relate known structures, utilities and local measurement interference to the affected sections. These details inform the methods, work scope and necessary preparations. The quotation describes the agreed task and documents to hand over. For scheduling, record when the technically assessed results are needed for the next ground works.
Discuss the scope and scheduleTasks at the site
Find the right conclusions in the right report
01
Assess ground quality and explosive ordnance separately
A ground investigation report can provide important information on subsurface composition. An investigation for contaminants answers different questions about contamination and handling excavated material. This does not automatically establish anything about explosive ordnance. Check the actual investigation commission before using a report as the basis for another technical discipline.
02
Consider utility information alongside the other findings
Existing utilities matter both for ground disturbance and possible investigations. Utility information does not, however, replace explosive ordnance assessment. Bring the two sets of information together without confusing their conclusions. The further approach also needs clear information on access, known structures and possible limitations of the proposed measurements.
03
Read maps and text together
A report's text may concern a smaller area than the whole property. Its accompanying map identifies this boundary. Compare the areas investigated with buildings, excavations and infrastructure works in the current design. A general property description alone is insufficient for this comparison.
04
Include design changes in the comparison
If a building is relocated or a utility is laid deeper, the earlier investigation may not cover the new ground disturbance. Document such changes with their date and location. Usable results remain available. Further work is determined from the changed question, rather than the report's age alone.
Project documents
Documents that establish the next step
Request missing reports specifically
Record the title, date and known relation to the area in your document overview. Identify missing maps or appendices. This allows requests to address specific gaps. If a report is unavailable, keep this limitation clear; its mention in an older notice is not treated as a favourable investigation result. The associated plan shows which area was actually investigated. Document the commissioned explosive ordnance methods, areas or points investigated, depths, assessments and limits in the report and plan appendices. For commissioned clearance work, the clearance record with location and results forms part of the evidence. Assign technical questions to the responsible contact.
Separate planning documents from investigation results
A plan made available for consultation may name existing reports without reproducing their complete content. The relationship between the plan version and specialist report is therefore needed. Show the present-day ground works too. An earlier planning decision does not automatically describe later investigations or coverage of a design that has since changed. Record the publication date of a notice separately from the preparation date of a specialist report. For Nordring, the 2017 official gazette lists several technical investigations whose own maps and results are needed for assessment. Keep later additions assigned to the relevant original report. Compare the location and depth of the current construction design with these documents. The results file records which version is used for which work section.
Construction sequence
Coordinate investigation and construction sections
Compile a complete set of documents
Organise the plan version, specialist reports and additions in a clear filing system. Add the proposed works with their locations and depths. The initial discussion checks which documents already cover the task. Request further information for a specific purpose, turning a general collection into a usable project basis. State which decision is needed before the next construction phase. An existing document register helps locate the material, but technical assessment needs the associated contents. Include known utilities, ground composition and available access. Use the documents to identify the conclusions still missing for the specific ground works. The next commission names the affected areas, suitable approach and results documents needed.
Update the report selection for new ground works
An additional service trench or changed foundation may affect a ground volume not previously considered. Mark the change on the current plan. The specialist assessment compares it with existing conclusions. Results on other technical questions remain available but are not used in place of missing evidence. If the contractor changes, give the succeeding site management team the complete relevant reports and plan appendices for the work area taken over. A handover list identifies outstanding tasks and technical contacts. After an interruption, compare the next planned ground works with the documented findings too. Record new results and design changes with their dates in the project file and send them to the affected parties.
Method selection
Select methods according to the task and survey conditions
Historical records and aerial photographs
Historical aerial photograph assessment and other old records help place the basis for suspicion in its spatial context. The available images, their evidential value and the limits of the area considered matter. The absence of an identifiable indication must be distinguished from a technically surveyed ground area. The assessment is considered together with the planned intervention and other available findings. It can support the choice of a survey, but is not a measurement of the present-day subsurface or confirmation for all future works.
Understand aerial photograph assessmentMagnetometric survey
Magnetometric methods detect magnetic anomalies. Whether they can address the specific survey task depends, among other things, on the expected objects, ground conditions, interference and required survey area. Fences, utilities or existing structures may affect interpretation. A measurement signal is therefore not described as ordnance solely because of its strength. Method, interpretation and any further investigation are planned as a connected specialist task.
Understand the scope of magnetometryElectromagnetic methods
Electromagnetic investigations can be suitable for particular metallic targets and site conditions. Their suitability must be explained for the task, rather than inferred simply from the availability of equipment. Interfering installations, accessible areas and the findings required must also be considered. Results are documented with their location and survey conditions. The specialist assessment determines whether a supplementary method is needed; this remains a project-specific decision.
Understand electromagnetic surveyingGround-penetrating radar
Under suitable conditions, ground-penetrating radar can provide information about subsurface structures and reflections. Ground conditions, moisture, installations and the particular survey task affect interpretability. An anomaly is not automatically ordnance, and an area with no apparent anomalies is not general evidence for arbitrary depths. The specialist interpretation and its limits are documented with the instruction. A survey for another purpose is not adopted without checking as ordnance evidence.
GPR and limitationsDeep-ground and downhole surveys
For deeper groundworks, it may be necessary to establish whether a surface investigation can provide the required findings or another approach is needed. Preparation includes the location, depth, borehole layout and existing services. Creating access for the investigation must also be properly planned by specialists. A general depth figure or standard grid cannot replace that work. Findings remain limited to the areas actually investigated and the method used.
Prepare deep interventionsSurvey during construction
If a necessary preliminary investigation cannot be completed, the specialists assess whether a planned approach during construction is suitable. This includes coordinated investigation, interpretation and communication of findings within the intended work sequence. Visual observation of excavated material is not an interchangeable substitute for a necessary survey. Site management needs a clear description of when specialist work will take place, how new findings will be handled and which areas remain unresolved.
Agree the approach during constructionTechnical assessment
Commission the investigation steps still needed
Build preliminary investigation on existing documents
The Historical aerial photograph analysis can provide indications of earlier use and possible wartime impacts. Available reports and files supplement this assessment. If a preliminary investigation already exists, first check its scope. An entry in a report list alone is insufficient to apply the result to a new area.
Define the technical investigations precisely
For any necessary Surveying, define the investigation objective, areas to investigate and suitable methods. Different interference sources or surfaces may require different approaches. The commission should therefore not demand a blanket conclusion for an area that cannot be achieved under the actual conditions. Include remaining limitations in the interpretation and handover.
Set out the next steps clearly
A Clearance plan can coordinate the measures still needed with the planned earthworks. Existing findings remain in use and outstanding tasks are identified. Visual observation during excavation alone does not replace a necessary investigation. Whether a clearance method during construction is suitable requires prior specialist assessment, taking occupational safety into account.
Next steps
Compile documents for assessment of the construction project
Start with the planned ground disturbance
Show where construction and ground disturbance are planned on the location plan. Add proposed depths, construction methods and the programme. For a commercial redevelopment, demolition areas and new connections may matter alongside the new building. Describe these works explicitly where they form part of the project. For the initial project discussion, identify the address, construction phase and forthcoming ground works. Specialist planning checks existing explosive ordnance information and reports with all their appendices for plan status, area and depth coverage, and unresolved questions about the current task. Further work builds on the findings that can actually be used.
Request the complete reports
Bring together existing specialist reports with their appendices. If only titles or brief extracts are available, identify the missing documents. An extract from a planning procedure may help locate a report but does not replace its contents. The investigation boundaries and conditions attached to each conclusion are particularly important.
Coordinate historical evidence and methods
Where the existing evidence does not yet answer today's question, the required historical research or aerial photograph assessment is carried out for the specific construction area. Findings are assigned spatially and connected to the planned ground disturbance. Specialist planning uses this to define the investigation scope and a suitable method. Ground structure, installed structures, measurement limits and intended depths are considered. Access and necessary preparatory work are agreed with the responsible parties. Existing knowledge that is sufficient continues to be used for further planning.
Coordinate outstanding questions between the designers
Discuss which conclusions are already available and who will address the remaining questions. Explosive ordnance assessment, geotechnics and utility design may involve the same areas while pursuing different objectives. Coordinate the work sequence technically. Necessary investigations must not be scheduled after the ground disturbance for which they are relevant.
Carry out and assess the commissioned investigation
Specialist staff carry out the defined survey or supervision for the agreed task. Measurement data, findings and the investigation conditions actually achieved are recorded with location and depth references. Unaddressed areas and areas with limited interpretability remain identifiable. The data collected is assessed against the investigation objective and local interference. This establishes further work requirements or the results handover. If a suspicious object is encountered, work stops and the responsible response authorities are notified.
Hand over results with the construction design
Give the site management team the relevant reports and location plans with their limitations. For additional investigations, identify the area they concern. Check changes again before construction. This lets the site management team relate results to the actual work step rather than relying on a shortened overall statement. Record the specialist assessment in a report with the associated plan appendices. Document methods, areas and depths actually investigated, and limits. The site management team compares the next ground works with these and agrees any further work needed before the affected construction begins.
Documentation
Specialist services for the property and public authority tasks
Findings and their scope
The current Bavarian notice separates private preliminary investigation and technical investigation of a property from state disposal of explosive ordnance actually found. Local hazard response generally lies with the municipality. Report a suspicious find to the police immediately; further handling follows the authorities' instructions.
Project responsibilities
FONTANA-EOD agrees the scope of services according to the needs of your Bayreuth construction project. The BFR KMR can provide technical guidance for planning and documentation. Their direct federal scope is not thereby extended to every private property. Record the scope and limits of the commissioned services clearly for everyone involved.
Working approach
How FONTANA-EOD works
Document the agreed specialist service clearly
We assess the planned groundworks against the available documents and their design revision. Before attending site, we agree with you what needs to be investigated, which areas are accessible and what findings are required. If the design or site conditions change, we check whether the agreed scope remains appropriate. The report states what was actually investigated and the limits of the findings. This allows designers and site management to see which findings they can use and where questions remain.
Discuss the investigation taskThe task before the equipment
We first establish the investigation objective: which question must it answer? We then select a technically suitable method. The availability of a particular device or experience on a similar neighbouring site is not enough to justify the choice of method on its own.
Keep limitations visible
Inaccessible areas and limited conclusions are identified. They do not disappear into a total area figure. Designers and site management can then decide specifically which areas still need attention and when a suitable survey becomes possible.
Clarify changes before intervening in the ground
A new location, additional depth or different construction method is compared with previous results. A familiar project name does not replace this comparison. Feedback is provided before the affected work so that an outstanding question can be included in the sequence.
Hand over the report and plan together
The technical conclusion remains connected to its location references and appendices. A brief summary helps orientation but does not replace the documented survey scope. This basis is retained even if site management or contractors change.
Understand the results
Use technical statements for the next decision
Record the title, date and results separately
A report title helps locate it but says little by itself about the findings. Add to the project overview whether the complete report is available and which area it addresses. The technical conclusions remain available in the original report. This creates an overview that supports later assessment without anticipating the results.
Understand investigation reports and their limitationsKeep additions with the original report
Later statements may clarify individual questions or address another area. Keep these with the associated report. Their relationship must remain clear to other project participants. When using them, check which conclusions still apply and whether a newer document changes the earlier assessment.
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 service overview helps distinguish these tasks in an enquiry.
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 existing reports and their scope
Does the Nordring report list prove that clearance was completed?
No. The 2017 official gazette lists the specialist documents available for consultation at that time. A list does not reproduce their individual results and limitations in full. Read the respective reports and appendices for these.
Is a ground investigation report without adverse findings sufficient for the explosive ordnance question?
Not automatically. What was actually investigated is decisive. Information on ground composition or contaminants does not replace a separate explosive ordnance assessment where the project requires one.
Can an old report still be used?
Yes, where its investigation objective and spatial conclusions fit the current design. Age alone does not decide this. Changed ground works or missing appendices may require further work.
Which documents matter for the initial comparison?
A current location plan with ground disturbance depths and the complete existing specialist reports are helpful. Include associated maps and known limitations. Identify missing documents explicitly as missing.
What applies if a suspicious object is found on site?
Stop work, do not touch or move the object, and keep other people away. Notify the police immediately from a safe distance on 110. Follow the authorities' instructions.
How is a later statement linked to the original report?
Keep it with the associated original report and its appendices. Identify the question or additional area the statement addresses. When using it, a specialist checks which earlier conclusions still apply and whether the newer assessment changes particular points.
What does a limitation caused by local interference mean?
It may limit the conclusions possible with a particular method. Match the commission to the actual conditions; areas not sufficiently covered remain identified in interpretation and handover. A blanket conclusion for the whole area must not conceal these limits.
How are specialist reports brought together, and which factors affect costs?
Their tasks and conclusions remain separately identifiable. Coordinate the respective prerequisites needed for construction. The work required for additional explosive ordnance services depends on investigation scope, area size or the number of points, depth, available documents, access, interference and the appropriate method. Agree preparatory works and the results documents needed as part of the commission. For scheduling, agree when the technically assessed findings must be available for the next ground works.
Project enquiry
Prepare the first technical discussion
Attach the complete reports
Compile reports with maps, appendices and additions. Do you have several reports on a property in Bayreuth but still have questions before earthworks begin? Send us the reports and your current design. We will agree the necessary explosive ordnance services with you.
Show your own ground works
Identify the construction area, depth and current plan version. Also state which earthworks are due to begin first and which areas are not yet accessible. This allows necessary preparations and results handover to be coordinated in good time.
Project process and documents
Project process and documentsMethods and technology
Methods and technologyIdentify responsibilities by project location
Identify responsibilities by project locationDefine the construction task and investigation needed
Define the construction task and investigation neededAgree further work on findings
Agree further work on findingsPlace EOD tasks in the project context
Place EOD tasks in the project contextUnderstand the investigation basis and limitations
Understand the investigation basis and limitations
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.
