Project pathway
The quickest route to the right decision.
Explosive ordnance surveying in Freising using existing investigations
For project owners, developers and site managers in Freising, earlier explosive ordnance assessments are compared with the new construction project. FONTANA-EOD checks which results can be used for the proposed ground works and which specialist tasks remain. Send the complete report, including maps, and the current ground works plan. Usable earlier work is considered when determining the services needed.
Obtain earlier assessments in full.
Compare the areas and ground disturbance.
Base the scope on the needs established.
Assess the construction project
How can an older report be used for a new project?
Obtain the complete report with maps and limitations and compare it with the current ground works plan. The specialist assessment compares the area, information used and conclusions with the present task. Usable results may remain in use. Additional work addresses the specific questions still unresolved; a new description of site use alone does not determine a blanket investigation scope.
Project site
Connect the site with the specific construction task
Assign original reports and plans to the Freising project
Draft 88 B refers to earlier investigations for airport construction and the source material they assessed. Check whether they cover the area of your own project. Municipal land-use planning and the digital plan archive help obtain relevant plans; the complete specialist report remains the basis for assessing earlier work.
Freising is a major district town in the district of Freising, Upper Bavaria administrative district, Bavaria, Germany. The city and district are different administrative levels. For a specific project, the project address identifies the responsible municipality. Check the spatial scope of airport documents against their associated maps, rather than the infrastructure project's name alone.
Local context
Freising's planning draws on earlier airport investigations
The earlier assessment in draft 88 B
The explanatory statement for Freising land-use plan 88B, “MUCcc – Multifunctional Concert and Congress Centre”, draft dated 5 January 2026, describes earlier investigations connected with construction of Munich Airport. According to the results summarised there, analysis of the aerial photograph series and records used identified no potential explosive ordnance contamination.
Use relevant earlier work for the current design
This is a specific conclusion about that planning proposal and the source material assessed at the time. For a new project, check the underlying report and its spatial scope. A result may remain usable; a new use does not automatically make it worthless. Equally, a brief summary in a land-use plan is not an unlimited technical clearance for every later ground disturbance.
For Freising's city history, the Reconstruction Atlas of the House of Bavarian History documents the air raid of 18 April 1945 on the station area and surrounding industrial premises. This specific historical context is distinct from assessment of the areas for later airport construction. It does not establish a general present-day suspicion for properties. The specialist assessment assigns historical findings to the area actually considered.
Requirements
Clarify technical requirements and responsibilities within the project
Relate requirements to the specialist task
For commissioned activities in Germany, clarify the relevant technical requirements and questions of permits, competence and responsibility. The actual proposed scope of services is the basis. It describes the specific activities and points of coordination with the parties responsible.
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.
Local procedure: City of Freising: MUCcc, land-use plan 88 B, draft of 5 January 2026 · City of Freising: land-use planning and legally effective land-use plans.
Planning and documentation: BFR KMR: principles of clearance planning · BFR KMR: geophysics · BFR KMR: documentation · Bavaria: protection against explosive ordnance hazards, notice of 13.08.2026
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?
Identify historical and technical conclusions correctly
Analysis of aerial photographs and records is distinct from a technical investigation. Both may provide usable findings but rely on different evidence. Keep these distinctions clear when passing results on. Specialist planning determines whether further investigation is needed, and what kind, according to the current task.
Assess historical documentsCompare the new scope specifically with earlier work
Draw additional utilities, changed construction boundaries and new depths. Relate the existing assessment to these areas where its documented scope permits. Address outstanding questions separately. A change of use alone justifies neither starting everything again nor unlimited reuse of every older result.
Compare investigation methodsProject types
Review existing findings and determine the further work needed
Trace the basis of the earlier assessment
Read which records and time periods were actually assessed. The associated plan shows the spatial scope. A brief summary may point to the report but does not replace its complete conclusions. For the new project, assess which findings apply and which question the old scope does not yet answer.
Assign the report, appendices and design used with their respective versions. Identify later additions or differing conclusions too. If a source is missing, request that specific document. The commission can then distinguish usable information from work actually still needed.
Arrange specialist assessment of historical evidence
Relate further services to the outstanding need
Compare the new design with available results. Changes to the construction area, depth or connections may raise additional questions. Specialist planning determines a suitable approach under the actual conditions. Usable existing findings remain considered; a report's age alone does not require a particular additional technical investigation.
Identify the further information needed before commissioning work. Consider the working spaces and preparatory ground disturbance actually required. If individual options remain open, keep them separately identifiable. Once an option is chosen, compare its scope with the existing conclusions.
Compare specialist services
Record clearly which results form the basis
Document which report was used for each current ground disturbance. Keep maps, appendices and limitations available together. The site management team also needs this allocation when changes arise later. A shared project name or unchanged property address does not extend the spatial conclusions of earlier documents.
Keep related data sets available if the contractor changes. A report without its key plan appendix may leave the required spatial allocation unresolved. Identify such gaps explicitly. When further specialist work is carried out, file its results clearly with the earlier work used as a basis.
Document findings and their limitationsPreparation
Prepare the scope and commission together
Establish what needs to be known before commissioning the work
First establish which decision the commission needs to support. Is the task an initial assessment of existing documents, an investigation of a specific area or examination of an anomaly that has already been assessed? These tasks require different evidence. A general wish for safety does not define an investigation that can be carried out. The enquiry therefore specifies the groundworks, location, depth and available findings. Suitable specialist work and the required reporting are then agreed on that basis.
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 sound workflow distinguishes work already clarified technically from outstanding prerequisites. If an area will be accessible only in part, commissioning must take this into account. Handover and assessment of results also need time in the construction sequence. An enquiry therefore does not imply a blanket commitment on dates or cost. Specific coordination connects the described scope with access, documents, execution conditions and the date by which a decision is needed.
Discuss the scope and scheduleTasks at the site
What to check when moving from the old design to the new one
01
Assign the investigated area precisely
A report on a major infrastructure project may address several sections. Compare its associated map with the current construction property and proposed ground works. The earlier project's name alone is insufficient. Consider access routes, connections and site facilities too, where ground works are proposed there.
Mark on the current plan which sections will be reused and which are additionally needed. Report known ground changes. Compare a mapped earlier area with the present working space by their actual locations. Parts not yet covered remain identified as separate tasks.
02
Identify the method behind the result
A historical assessment and a technical investigation answer different questions. Read what source material was actually assessed and how the conclusion was reached. This helps prevent an aerial photograph assessment being mistakenly described as an area-wide technical investigation when passed on. The original report's conclusions matter, rather than a shortened file name.
Identify documents by their original method. If technical data are available, include their interpretation and limits too. A specialist contractor can then distinguish questions already answered from additional measurement needs. Relate changes to the proposed ground works to these findings.
03
Show new ground works clearly
Compare the earlier planning scope with the current areas and depths. A relocated building or changed drainage may affect areas outside the earlier assessment. Such a difference first requires specialist assessment. It does not automatically lead to the same additional method in every case or repetition of all earlier work.
Show working space beside structures that will remain too. A changed excavation slope or additional temporary pit may need its own comparison. Agree the scope and prerequisites of additional work in advance. The later documentation identifies the areas actually investigated and outstanding tasks.
04
Retain usable results in the commission
List which existing documents have already been checked and which questions they answer. Keep outstanding points separately identifiable. This gives a clear basis for commissioning work. Starting everything again may be as inappropriate as accepting an old summary of results without checking.
Clarify necessary investigations and protective measures before affected investigation points, demolition or other preparatory ground works. An enquiry does not require you to expose unknown buried structures yourself. Initially use available information on existing structures and photographs taken from above ground for coordination. Unknown conditions remain identified as unknown.
Project documents
Documents that establish the next step
Describe the change of use separately from ground disturbance
A new name for a site's use says little about the earthworks required. Show the actual changes to buildings, foundations and connections. The specialist assessment can compare the new ground volume with earlier findings. This identifies which tasks remain unchanged and which additional conclusions the project needs.
Relate the new design to existing reference elevations. A later change in ground level may affect use of a depth stated earlier. The specialist assessment needs the available information on the former and current surfaces. Identify unresolved elevation references before transferring results.
Trace a brief summary back to the original
If only a sentence from a plan's explanatory statement is available, look for the underlying report. Its investigation objective, appendices and limits are needed. If it is unavailable, keep this gap clear. Further coordination then explicitly identifies the information on which an assessment can be made and the additional work needed. Where clearance work is carried out, keep the corresponding clearance record in the project file with the areas and depths addressed.
Construction sequence
Coordinate investigation and construction sections
Provide the complete earlier investigation
Collect the report, maps and later additions. Include the current design with a clearly identified version. The initial discussion checks which documents are available and can be spatially assigned. Identify the information still needed for missing parts before agreeing a specific additional service.
Identify who brings together the current project documents. Enquirers can then submit missing appendices and later changes through one contact. Keep different assessment stages clear. Distinguish a specialist commission not yet carried out from an existing result so the next steps are based on actual conditions.
Establish a clear basis for the commission
Record which questions have already been answered and which still need work. This gives the commissioned service a specific purpose. After completion, combine the new results with the earlier work used. Keep their respective spatial and technical limits clear even within a shared project file.
Coordinate necessary clearance work, area clearance or investigation of findings with the responsible parties. For clearance work actually carried out, keep the corresponding clearance record with the areas addressed. Assess any recovery task separately. The documents distinguish the earlier information from newly performed specialist services.
Method selection
Select methods according to the task and survey conditions
Historical records and aerial photographs
Historical aerial photograph analysis relates suitable images and other findings to a specific investigation question. A negative result retains its spatial and technical scope. For the new project, check which image dates and areas were actually covered. Carry out necessary additional work where historical questions remain. Further specialist planning considers the result together with the current ground works. A brief planning statement may identify the original report; maps and limitations remain decisive for its use. Identify historical assessment and technical investigation clearly at handover.
Understand aerial photograph assessmentMagnetometric survey
Geomagnetics measures the magnetic field passively and uses the magnetic effect of objects. Electrical conductivity alone does not make an object detectable by geomagnetic methods. For an additional commission, record the investigation objective and actual conditions. Existing utilities, structures and other interference sources may affect the conclusions. An earlier historical assessment retains its own result alongside this. Assign the technical measurements and their interpretation to the ground volume actually investigated. Document limitations and points not sufficiently investigated, and consider them in further technical decisions.
Understand the scope of magnetometryElectromagnetic methods
Transient electromagnetic methods, or TDEM, assess the time-dependent electromagnetic response of conductive objects. Their suitability for an outstanding investigation need depends on the objective and actual conditions. Check existing technical data for usability. A new design may require individual additional sections while others are already sufficiently resolved. The commissioned investigation therefore receives a defined scope. Interpretation considers structures and interference. Hand over its results with maps and documented limits so later construction uses the right conclusions.
Understand electromagnetic surveyingGround-penetrating radar
Under suitable conditions, ground-penetrating radar can show subsurface structures and reflections. Water content, ground composition and existing structures affect measurements. Assess its suitability for the specific unresolved question. Interpretation does not automatically identify explosive ordnance. Existing historical and technical results remain identified by their respective methods. For additional proposed working spaces, check which conclusions are needed. A new project name does not extend results for a neighbouring area to other sections. Document the specialist assessment and its limits clearly.
GPR and limitationsDeep-ground and downhole surveys
A changed foundation or deeper connection work may affect an additional ground volume. Specialist planning compares this with the documented conclusions of existing investigations. If the available findings are insufficient for the depth needed, agree a suitable approach, including deep or downhole surveying where necessary. Location, depth and elevation reference belong in the commission. Clarify necessary prerequisites before ground disturbance. A point-specific result remains assigned to the ground volume actually investigated. Compare changes to the point or proposed construction before using it further.
Prepare deep interventionsSurvey during construction
Any necessary explosive ordnance investigation during construction receives its own specialist commission and suitable working conditions. Depending on the task, excavation in layers, specialist exposure of objects and further surveying may be needed. Visual observation of ordinary excavation alone does not replace necessary detection. Relate existing investigations to the work areas now concerned. Record sections actually investigated, findings and limitations. Pass on outstanding tasks for a subsequent construction section. An earlier result retains its documented scope and is compared again by a specialist if the ground disturbance changes.
Agree the approach during constructionTechnical assessment
Determine further services from the outstanding questions
Trace existing historical assessments
The Historical aerial photograph analysis should be available with the image dates assessed, maps and limitations. Further information may matter for the overall assessment. Whether additional work is needed follows from the existing report and current question. A document's age alone does not define a technical programme of follow-up work.
Assess the technical need separately
The Surveying is planned according to the investigation objective and local conditions. If the specialist assessment requires further investigations, describe their area and objective. Consider existing technical results. Selecting a method is part of specialist planning and cannot be determined from a general planning note alone.
Relate necessary measures to the construction project
A Clearance plan can bring together earlier findings and investigation or clearance services still needed. Record which conclusions each ground disturbance requires. Observation during excavation alone does not replace a necessary prior investigation. Special methods during construction need their own specialist assessment and suitable conditions.
Next steps
From existing reports to a documented specialist task
Request the original report with its appendices
Where possible, obtain the complete earlier assessment rather than only a sentence from the planning statement. This includes maps and information on the source material used. If a document is unavailable, identify the gap in the enquiry. This keeps clear what information supports further coordination. In the initial enquiry, identify the project location and conclusions needed. Check existing plans, statements and reports for currency, spatial reference, completeness and gaps.
Address outstanding historical questions
Where historical questions remain open, necessary research and aerial photograph assessments are actually carried out within the commission agreed by specialists. Existing assessments are considered with their respective subareas and conclusions. Additional findings are assigned to the present area of ground disturbance and used in investigation planning.
Use the current land-use plan
The City of Freising maintains an overview of its legally effective land-use plans and refers to the district's digital plan archive. Look there for the plan and appendices relevant to the property. A current plan and an older investigation report serve different purposes; both may be needed for comparison. Select the appropriate method according to the investigation objective, ground disturbance depth, ground composition, structures and actual measurement conditions. Clarify access and necessary preparations with the responsible parties.
Mark changes from the earlier project
Provide a location plan showing current construction boundaries and proposed ground disturbance depths. Identify additional utilities or early investigation points. If the design is still changing, state its current status. A clear drawing helps distinguish usable earlier work from sections still needing clarification.
Perform the agreed investigation
The agreed survey or appropriate investigation during construction is carried out on the defined areas and points. Measurement data and observations receive clear position and elevation references. Uninvestigated areas, restricted access and relevant interference are recorded.
Assess and document findings
The collected data and findings are assessed against the investigation objective and actual measurement conditions. The assessment takes account of interference and limitations. The report and plan appendices document the technical assessment, areas addressed and their position, elevation and depth references. Required further tasks follow from this.
Record the basis for construction
After technical coordination, it should be clear which results are used for which work areas. Give the site management team the associated reports and current plan. If changes arise later, compare the affected scope again. Filing an earlier report under the same project name alone does not make it suitable for every extension.
Documentation
Distinguish specialist assessment from public hazard response
Findings and their scope
In Bavaria, preliminary investigation for a construction project is separate from state disposal of explosive ordnance actually found. The current notice does not define the state service as a general search service for construction properties. Local hazard response generally lies with the municipalities. Report an actual explosive ordnance find to the police immediately.
Project responsibilities
FONTANA-EOD discusses the existing documents and specialist services needed for your Freising project with you. The BFR KMR provide technical principles for planning and documentation; their direct scope is federal properties. For private projects, the specific circumstances are decisive. They do not establish a blanket duty to investigate again.
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
Hand over a result with the method that produced it
Identify whether a conclusion comes from historical analysis, technical measurements or another specialist service. The report explains the actual information used and its limits. Retain these details when passing it on. This prevents a useful preliminary assessment being mistakenly used as evidence of a different or more extensive investigation.
Understand investigation reports and their limitationsRecord changes after the initial comparison
Construction boundaries and connections may change even after initial technical coordination. Mark the affected scope on the new plan. Check the existing results against it again. This keeps clear which earlier conclusion is used for the next ground works and which additional task has arisen.
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 using existing investigations
Does an older report always have to be replaced for a new construction project?
No. Existing results can remain in use where their conclusions fit the current question. In particular, have their spatial scope, the source material assessed and possible limitations checked. Additional work follows the questions actually unresolved.
What does Freising draft 88B say about explosive ordnance?
The draft from January 2026 refers to earlier investigations for airport construction. According to its summary, analysis of the aerial photograph series and records identified no potential explosive ordnance contamination. Use the underlying report for a specific ground disturbance.
Is an aerial photograph assessment with no indications a technical area investigation?
No. Analysis of historical records and a technical investigation are different services. Identify a result with the method and source material that produced it. Any further steps required need separate specialist assessment.
Which changes should I state for a new use?
Describe the proposed ground works with locations and depths. Additional buildings, connections and preparatory investigation points are important examples. A change in the name of the use alone does not establish which new investigation questions arise.
What applies if a suspicious object is found despite an earlier investigation?
Stop the affected work. Do not touch, move or relocate the suspicious object, and do not uncover it further. Leave the danger area, keep others away and call the police on 110 from a safe distance. Do not take the object to a police station. Follow the competent authorities' instructions.
Which factors affect costs when preliminary investigations already exist?
Usable earlier work is considered when defining the scope of services. The work required depends on information and historical findings still needed, areas, depths, access, structures and interference, necessary preparatory works, suitable methods, interpretation and documentation. Additional utilities or changed construction boundaries may create a different need. The questions actually unresolved and agreed specialist services are decisive.
Does observation during excavation replace an investigation still needed?
No. Visual observation alone does not replace a necessary prior investigation. Clarify with the specialist designers which conclusions are needed before each ground disturbance. Special methods during construction require their own specialist assessment and suitable conditions.
How is reuse of a result documented?
With reference to the complete report, its scope and the current plan version. Limitations remain clear and changes are compared again.
Project enquiry
Prepare the first technical discussion
Send the complete earlier work
Attach reports with maps, source material and additions.
State where the documents can be found and which versions are available. Keep the associated plans with the report. For earlier subtasks, make clear which area and conclusions are meant. List missing appendices explicitly before assessing their significance for the next commission.
Show the new task
Mark areas, depths and changes from the earlier design.
Identify additional working spaces, connection points and options still open. Give the proposed depths their known elevation reference. Explain ground works carried out since and changed surfaces. The specialist assessment can then relate the new task to existing results and request the further information needed specifically. Identify the project location in Bavaria or specify a different federal state.
Project process and documents
Project process and documentsMethods and technology
Methods and technologyIdentify the project location and region
Select a regionAssess the use and construction task
Describe the project settingAgree further specialist services
Clarify the 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.
