Schematic map of Bavaria with a blue-and-white lozenge shield and crown, alongside a tablet, white safety helmet, pen and notebook.

Explosive ordnance surveying in Bavaria for your construction project

Before groundworks in Bavaria, project owners, planners and contractors need a property-specific assessment of existing suspected explosive ordnance. FONTANA-EOD researches the history of the affected site, plans suitable technical investigations and carries out the commissioned specialist work. Send a site plan with depths of ground disturbance and existing findings. The enquiry is assessed for the specific excavation, site to be developed or route section; if ordnance is found, the competent public bodies are involved.

Assess the property

Check earlier use and existing indications.

Define the construction task

Define the construction area and depths of ground disturbance.

Clarify responsibilities

Discuss the commission and the procedure if ordnance is found.

Enquire about a project in BavariaSequence and preparation
Assess the construction project

Who arranges precautionary explosive ordnance assessment for a construction project in Bavaria?

Project owners and contractors investigate existing suspected explosive ordnance and arrange the necessary measures. Historical findings, the specific site and planned groundworks are considered together. Private specialist contractors carry out the agreed research, investigation and documentation; hazard prevention following finds is coordinated with the local security authorities, police and the explosive ordnance disposal service commissioned by the Free State. A property assessment is provided with its actual scope for the planned ground disturbance.

Documented location references

Reference projects in Bavaria

Select a project location on the map or in the location list. The associated entries lead to the protected reference overview.

26 locations · 70 associated reference entries

Reference projects in BavariaGeographical outline with confirmed location references from the project records. No precise ordnance find or site coordinates. Plattling – 5 reference entriesPassau – 14 reference entriesAugsburg – 7 reference entriesPegnitz – 1 reference entrySchnabelwaid – 1 reference entryStraubing – 4 reference entriesMintraching – 4 reference entriesMünchen – 13 reference entriesDonauwörth – 2 reference entriesVorra – 1 reference entryAschaffenburg – 2 reference entriesErlangen – 1 reference entryBiebelried – 1 reference entryObertraubling – 3 reference entriesPappenheim – 3 reference entriesSchwandorf – 1 reference entryZeitlofs – 1 reference entryWürzburg – 2 reference entriesNürnberg – 1 reference entryMinderoffingen – 1 reference entryMündling – 1 reference entryFremdingen – 1 reference entryHersbruck – 1 reference entryKarlstadt – 1 reference entryVilshofen an der Donau – 1 reference entryGemünden a.Main – 4 reference entries

The markers indicate locations associated with documented references, rather than exact find or construction site coordinates. Several entries may relate to one project. References without a reliable location assignment are available in the complete reference overview.

Map data: © BKG (2026), VG250 / GN250, Data licence Germany – attribution 2.0. Area outline projected for display. Selection and project assignment: FONTANA-EOD.

Project references

Selected project examples

Project site

Connect the site with the specific construction task

Schematic map of Germany with location markers on a work surface; rolled plans and a white safety helmet alongside, with a construction site in the background.

Relate Bavarian duties to the specific property

The notice in force since 1 September 2026 describes responsibilities, precautionary research and duties following explosive ordnance finds. For a construction project, these requirements are related to the specific property. Local information, a private investigation report and state disposal of found ordnance each retain their own purpose.

For geographical assignment, identify the Free State of Bavaria, administrative region, district or independent city, and the actual municipality. The project address remains decisive. The areas covered by the disposal units are regulated separately in the notice; because certain districts are assigned individually, they do not follow a simple north–south boundary throughout. The specialist contractors involved clarify the necessary handover with the competent body. Report a hazard directly to the police. The Free State is in Germany. For routes crossing into Baden-Württemberg, Hesse, Thuringia or Saxony, for example, clarify the requirements there separately for each section. For projects involving Austria or Czechia, the procedure is likewise determined by the actual project location.

The available overviews Upper Bavaria, Lower Bavaria, Upper Palatinate, Upper Franconia, Middle Franconia, Lower Franconia, Swabia lead to the associated local information. Select the area of your construction project; the specific municipality and properties affected remain decisive for the enquiry.

Regions and local preparation
Local context

Distinguish project owner responsibilities from disposal of finds

Clarify responsibilities before groundworks

Under the Bavarian notice in force since 1 September 2026, project owners and contractors must investigate suspected explosive ordnance during construction projects and arrange the necessary measures. The basis is generally research into the individual property and a related assessment.

The historical effects of war are documented differently across Bavaria. The reconstruction atlas published by the Haus der Bayerischen Geschichte describes attacks on MAN and Messerschmitt in Augsburg, as well as the heavy night raid of 25/26 February 1944 on the city centre, Jakobervorstadt and Lechhausen. For a site today, historical information of this kind is checked against its actual geographical relevance. A city history is neither evidence for every property nor a technical investigation of today's ground.

Assess existing indications for the specific property

The explosive ordnance disposal service commissioned by the Free State does not assess or certify whether properties contain explosive ordnance or are free of it. According to the notice in force, Bavaria has no central overview of find locations or properties with suspected explosive ordnance. The absence of a reported find therefore does not replace assessment of specific indications.

Distinguish duties following explosive ordnance finds

If explosive ordnance is found, the bodies responsible for hazard prevention are involved. Municipalities as local security authorities and the police have different duties from a commissioned private specialist contractor. These responsibilities are considered when preparing the commissioned works.

Under the Bavarian provisions of 2026, “old” and “new” explosive ordnance are distinguished by the period of manufacture. For “old” finds, the commissioned state service supports the immediately necessary measures relating to explosive ordnance. The State Criminal Police Office handles ordnance manufactured after the Second World War. The competent specialist body makes the classification; anyone finding an object leaves it undisturbed and informs the police.

Working together

Distinguish the tasks of client, designers and specialist contractor

Client and operator

The project owner describes the works and provides existing project documents. The operator adds requirements for use, access and timing. A coordinating contact brings the information together. The parties agree their respective duties and responsibilities for decisions. Before commissioning, record which information is missing, who will obtain it and which next construction decision the results are 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 research, review, investigation and documentation within the required permit and competence framework. Its report describes the specialist work completed and its limits. In Bavaria, the competent security authorities and police make the decisions assigned to them in specific hazardous situations. Under the notice, the explosive ordnance disposal service commissioned by the Free State supports the immediately necessary disposal of found “old” ordnance. The handover of recovered objects is agreed with specialists early. These duties and the private investigation commission remain distinct with their respective responsible parties.

Investigation task

Which specialist task comes next?

Select a suitable investigation on technical grounds

The method follows the available findings, investigation objective and actual conditions. Access, surfaces and existing structures can affect execution. For deep or individual point interventions, the volume of ground required is described separately. A method used earlier is not automatically suitable for every new task.

Compare investigation methods by task and conditions

Account for investigation limits in planning

Areas that cannot be covered sufficiently are identified explicitly. Further plans show the work proposed there and the findings needed for it. Supplementary work receives a defined scope. General terms such as investigated or cleared do not replace statements of area, depth and remaining restrictions.

Compare investigation methods
Construction projects in Bavaria

Construction projects in cities, on redevelopment sites and along routes

The site's previous use and the planned groundworks determine the investigation. A city's name does not establish suspected explosive ordnance on a particular property.

Urban construction and industrial projects

In Munich, Nuremberg, Augsburg, Regensburg or Würzburg, new excavations may encounter complex existing infrastructure. Existing basements, utilities, traffic areas and metal structures affect technical investigation. For residential construction projects, building construction, utilities and site infrastructure are treated as connected planning tasks.

For deep foundations, the investigation report must cover the areas and depths subsequently affected. Investigation from ground level is not sufficient in every case.

Barracks, airfields and redevelopment

Previous military uses need targeted research where they are documented or otherwise substantiated for the site. Current property boundaries may differ from the areas formerly used.

If the site is to be used for housing, business or public facilities, coordinate demolition and site infrastructure with investigation of possible suspected areas.

The Danube, Main and routes in southern Bavaria

Utility, railway and road projects may pass through changing ground conditions and construction methods. Near rivers, take account of the strata and groundwater conditions relevant to the ground disturbance too.

In the Alpine foothills and on slopes, access, gradient and working areas affect equipment use. These practical conditions are distinct from historically suspected explosive ordnance.

Tasks at the site

Relate existing assessments to the specific groundworks

01

Establish a clear location reference

Show the property affected with its boundaries and the ground disturbance actually proposed. A shared file reference helps assignment but does not replace a complete spatial description. Preparatory works and additional construction areas also belong in the comparison.

02

Distinguish requirements from results

An assessment may identify further work required. Check which tasks have already been documented as completed. Keep the corresponding reports and appendices available. A stated requirement and evidence that it has been fulfilled are different parts of the project information.

03

Define construction phases traceably

Determine which next work needs a conclusion. Different sections may have different access and depths of ground disturbance. Keep the investigation status separately identifiable for each area, even where commissioned together.

04

Compare new plan revisions selectively

Mark changes from the project already considered. Additional areas, greater depths or different preparatory activities may require a fresh comparison. Existing results are considered within their actual scope.

Specialist services for your project

Services for research, surveying and clearance

The investigation is designed for the planned works. Piled foundations may require different methods and depths from a shallow utility corridor.

Property-specific research

Historical aerial photographs, municipal documents and known previous uses are related to the project. The evidence researched and remaining gaps must be traceable.

Historical assessment of suspected contamination

Surface survey

Accessible construction areas and route sections are investigated using technically suitable methods. Interference fields, measurement conditions and limits of interpretation are included in the assessment.

Assess areas before ground disturbance

Deep-ground and downhole surveys

For piles, boreholes and sheet piles, the required volume of deep ground is considered. Design requirements for position, diameter, installation method and target depth define the specific task.

Coordinate deep interventions

Area clearance

For suspected or clearance areas requiring definition, the objective and scope of work are established. Construction phases and access must be planned so that execution matches the later documentation.

Planning area clearance

Excavation supervision

Specialist supervision of earthworks is incorporated where provided for in the investigation concept. Responsibilities, working areas and decisions on interruptions must be agreed before work begins.

Provide specialist supervision during construction

Recovery and handover

Investigation of a confirmed finding follows the permitted scope of the commission and the specialist decision on site. Further handover to the competent explosive ordnance disposal service is considered early.

Procedure for confirmed findings
Project types

From a substantiated question to an appropriate investigation commission

Illustration: aerial photographs and maps on two screens and printed on a desk.

Assess historical findings for your own site

Bring together existing analyses, plans and information about earlier use. Their spatial and temporal coverage must be clear. The absence of a reported find does not replace this assessment. Specialist preliminary investigation clearly identifies the findings available and the questions still outstanding for the planned ground disturbance.

Research considers whether earlier land-use boundaries match today's plots. A defined area may have formed part of a larger former industrial site. Identify known alterations and existing assessments. The specialist evaluation describes which findings concern the next ground disturbance. Missing evidence is identified specifically and linked to the further work needed.

Arrange specialist assessment of historical evidence
Two people with a tablet beside a marked construction area; plans lie in the foreground.

Describe the volume of ground required

Excavation, foundations, utilities and preliminary work may affect different areas and depths. Show planned ground disturbance with its elevation datum. The investigation is designed for this specific task. A property address or the name of a construction project is not enough to describe the technical scope.

Where there are several construction sections, identify the first ground disturbance explicitly. This may include exploratory works, utility connections or temporary ancillary pits. Also state the elevation datum and known changes in ground levels. Compare a relocated foundation with existing findings before construction. The parties receive a shared drawing that clearly distinguishes the newly required space from areas already investigated.

Compare specialist services
Illustration: two people review plans and documents at a table beside a construction vehicle.

Provide results for the next construction decision

The documentation shows which areas were actually investigated or addressed. Methods and restrictions remain traceable. The site management team can compare these details with the next works. Later changes are assessed for additional needs, without automatically discarding existing results or extending their scope without limits.

Retain the results with the plan version used as their basis. At handover, identify which construction phase the report supports. A section that becomes accessible later remains documented with its outstanding task. If contractors change, pass on site plan appendices and restrictions together. Additional investigations address the findings actually needed for the next volume of ground.

Document findings and their limitations
Project documents

Documents that establish the next step

Identify the parties' duties early

Record who provides the plans, commissions the specialist service and receives the results for execution. The duties of security authorities and police remain separate. An agreed communication route helps cooperation. A private commission does not predetermine decisions in a specific hazardous situation.

The tender describes the expected results documents, known access conditions and preliminary services required. An option still open is distinguished from the fixed scope. The specialist quotation can then reflect the actual investigation task and its prerequisites. Necessary coordination following a find remains a separate process with its own responsibilities. Commissioning private work does not determine later decisions by hazard prevention bodies.

Coordinate construction phases and access

An investigation commission may cover several sections accessible at different times. Identify the respective prerequisites and next groundworks. Partly completed tasks remain identifiable spatially. Before the affected ground disturbance, clarify the investigation or further information needed for an outstanding section. Where clearance works are carried out, retain the corresponding clearance record in the project file with the areas and depths addressed.

Method selection

Select methods according to the task and survey conditions

Historical records and aerial photographs

Property-specific research brings together suitable historical aerial photographs, municipal archive documents and other known findings. Their temporal and spatial coverage is checked. Where historical questions remain, the necessary research and aerial photograph analysis are actually carried out. The assessment describes the evidence, area considered and remaining gaps. Under the Bavarian notice, there is no central overview of all find locations or suspected properties. A missing entry therefore does not replace an assessment. The preliminary investigation results are related to today's ground disturbance and used to plan further investigation.

Understand aerial photograph assessment

Magnetometric survey

Geomagnetic surveying measures the magnetic field passively and investigates magnetic anomalies. Detectability depends on the target object's magnetic effect; conductivity alone is insufficient. In existing urban areas, utilities, reinforcement and fences can affect measurements. An open development site may present different investigation conditions. Both cases are planned according to the information needed and volume of ground required. A signal is not classified as explosive ordnance solely by its strength. Specialist interpretation brings together measurement data, interference and the documented investigation scope.

Understand the scope of magnetometry

Electromagnetic methods

Transient electromagnetic methods, or TDEM, investigate the electromagnetic response of conductive objects over time. Suitability is assessed against the investigation objective and actual site conditions. Metal structures and accessible measurement areas are considered. Along a long route section, conditions may change between open land and a connection in existing infrastructure. The investigation and its interpretation therefore have a clear spatial reference. A supplementary method follows from the outstanding technical question, rather than merely from equipment availability.

Understand electromagnetic surveying

Ground-penetrating radar

Under suitable conditions, ground-penetrating radar can detect structures and reflections below ground. Ground composition, moisture, existing structures and the findings needed determine its useful application. The measurements are interpreted by specialists and assessed together with the other findings. An anomaly is not automatically explosive ordnance; an area without anomalous readings is assessed only within the investigation scope actually documented. For measurements made for another purpose, the commission and its limits are considered. Their usability for explosive ordnance assessment is checked separately, particularly for additional construction areas or changed depths of ground disturbance.

GPR and limitations

Deep-ground and downhole surveys

For piles, boreholes, sheet piles and other deep ground disturbance, the volume of ground requiring investigation is assessed. Necessary deep or borehole surveying is planned with point positions, arrangement, depth and elevation datum. Existing utilities and the technically suitable creation of investigation access form part of preparation. Borehole clearance or technical evidence remains tied to the volume actually investigated. If a foundation moves or its depth changes, compare this with the earlier results before execution. General depth or grid specifications do not replace this specialist planning.

Prepare deep interventions

Survey during construction

An explosive ordnance investigation during construction may be technically justified if the necessary prior investigation cannot be completed in full. Investigation, necessary excavation in layers, specialist exposure of objects and additional surveying are planned for the area concerned. Interpretation and communication of findings form part of the agreed sequence. Visual observation during excavation alone is insufficient for detection. Areas addressed, limited findings and subareas still outstanding are recorded. The site management team receives the prerequisites and further specialist task before the groundworks that depend on them. A find is referred to the competent bodies through the agreed reporting channel.

Agree the approach during construction
Technical assessment

Distinguish historical assessment from technical investigation

Understand the historical findings available

Existing aerial photograph assessments and official statements are read with the current ground disturbance plan. Their tasks and spatial coverage remain identifiable. Technical planning builds on these findings and describes the further conclusion needed for the proposed groundworks.

Consider measurement conditions in specialist planning

Available access, installed structures and local interference affect the investigation. The appropriate approach is matched to the investigation objective. An earlier method or general area name does not automatically determine the method for a new task.

Identify the remaining needs specifically

Areas not sufficiently covered remain documented as outstanding tasks. Supplementary steps receive a defined spatial and technical scope. A partial report thus becomes usable for further planning without extending its conclusions to areas not yet investigated.

Where area clearance or recovery is required, the objective, spatial extent and handover arrangements form part of the specialist procedure. For completed clearance works, retain the corresponding clearance record with the areas addressed in the project file. The service actually completed remains distinguishable from outstanding tasks.

Next steps

From the current plan to documented investigation

01

Collect documents and plan versions

Provide assessments, existing reports and current plans for ground disturbance with their appendices. Identify unclear spatial references and missing documents. The initial discussion identifies the project location and the findings needed. Existing plans, statements and reports are checked for currency, spatial relevance, completeness and gaps.

02

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.

03

Define the next specialist task

Describe which findings are needed for which ground disturbance. Investigation scope, prerequisites and the parties' duties are agreed clearly. A suitable method is selected according to the investigation objective, depth of ground disturbance, ground composition, existing structures and actual measurement conditions. Access and necessary prerequisites are clarified with the parties responsible.

04

Check the prerequisites for execution

Clarify access, construction phases and necessary notifications before the planned start. Pass on planning changes to the affected parties in good time.

05

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.

06

Assess and document findings

The data and findings collected are analysed by specialists according to the investigation objective and actual measurement conditions. The assessment considers interference and limits of conclusions. The report and plan appendices document the specialist assessment, areas addressed and their location, elevation and depth references. Further tasks required follow from this. The client, specialist planners and site management receive the report and plan appendices for the next groundworks.

07

Pass on the complete results

Reports and site plans show the work actually completed. Areas still outstanding or subject to limited interpretation remain clear for the next works.

Construction sequence

Coordinate investigation and construction sections

Define a clear task before awarding the work

Provide the site plan, depths of ground disturbance and existing findings with their appendices. Identify options still open and the next stage of results needed. Describe the specialist service and its prerequisites. Costs and scope of private work are agreed independently, rather than derived from state duties relating to recovered explosive ordnance.

Coordinate the construction phase with us

Compare the next ground disturbance with the results

After execution, compare the report and plans with the current project. Communicate changes to areas, depths or construction sequence before the affected works. Usable results remain part of the evidence. Specialists determine additional tasks from the questions still outstanding.

Coordinate the construction phase with us
Research, procurement and execution

Define the construction area and evidence required

Before commissioning, describe the areas and depths to investigate and what you need the results for.

Assess historical sources professionally

A historical aerial photograph is initially a source. Its suitability, temporal coverage and geographical assignment need specialist assessment. Municipal archives and other documents can add relevant information; a single image does not necessarily show the full history of use.

Describe the construction area and depths of ground disturbance

Provide a site plan, plots, route sections or borehole locations. Add depths of ground disturbance, construction methods, existing investigations and planned dates. For larger projects, identify the connections between subareas and construction sections explicitly.

Record results and limits

The report must identify the areas actually investigated or addressed. It must also show where investigation was restricted, which depths were not reached and which questions remain unanswered. General clearance for the whole property does not replace these details.

Documentation for construction planning
Documentation

Assign findings, specialist services and official duties traceably

Findings and their scope

The results report describes the specialist task completed, its spatial extent and the limits identified. Existing historical assessments and investigations actually carried out remain clearly assigned. For the next groundworks, check which findings already apply and which questions remain outstanding.

Project responsibilities

The private investigation is related to the planned ground disturbance and its prerequisites. The duties of the local security authorities, police and commissioned explosive ordnance disposal service remain separate. Changes to construction plans are compared with the documented investigation scope.

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 task

The 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.

For a project with several contractors, record who receives the complete results and provides current plans in response to questions. A shared project name is not enough. Assign the documents to the relevant construction lot and its next groundworks. Explicitly pass on missing appendices or uninvestigated areas so that the next phase is prepared from the stage actually reached.

Project enquiries in the Free State

Project enquiries from all seven administrative regions

You can enquire about projects in Upper Bavaria, Lower Bavaria, the Upper Palatinate, Upper, Middle and Lower Franconia, and Swabia. This includes enquiries from Munich, Nuremberg, Augsburg, Regensburg, Ingolstadt, Würzburg, Fürth and Erlangen, as well as rural districts.

Whether an industrial site on the Danube or Main, a development area or a transport project in southern Bavaria, deployment planning needs the location, scope and timeframe. The specialist assessment remains tied to the particular property and planned ground disturbance.

Understand the results

Use technical statements for the next decision

Read a report alongside its original commission

The commission explains the area and question underlying an investigation. The results plan and limits of the findings add to this context. Keep the documents together. For later groundworks, this allows a check of whether the existing findings apply or additional questions need to be addressed.

Understand investigation reports and their limitations

Assign costs to the respective service

Research, technical investigation and private clearance works receive a clearly described scope of commission. The exemption from charges for certain state service activities under the notice relates to a different contribution. Project planning considers these duties separately. A general statement that all measures are free of charge would be inappropriate.

Understand the service scope
Design and findings

Documents for the next construction decision

Illustration: aerial photographs and maps on two screens and printed on a desk.

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 assessment
Illustration: two people review plans and documents at a table beside a construction vehicle.

Specialist 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
Four people in orange high-visibility vests in front of two excavators on a construction site.
Person with a yellow survey cart on a footpath in front of a hedge.
Questions from planning

Questions about property assessment, costs and munitions finds

Precautionary investigation of a property differs from the state's response to a specific explosive ordnance find.

How is a property assessed for suspected explosive ordnance?

The basis is suitable historical documentation and, where necessary, technical investigations. The absence of a reported find or an unremarkable neighbouring site does not establish that planned groundworks on your property can proceed without further assessment.

Which costs belong in project planning?

Research, surveying and commissioned clearance services are distinct from deployment of the explosive ordnance disposal service. Under No. 8.3 of the notice, no charges are made for the activities described there on recovered “old” explosive ordnance. Here, “old” means ordnance manufactured up to the end of the Second World War. This does not make the preceding private services free of charge.

What should I do if I suspect a munitions find?

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 plans are needed for an initial specialist discussion?

A site plan, planned groundworks with depths and elevation data, and existing reports with their appendices are helpful.

Does a partial report cover every part of a property?

No. The documented investigation scope and the limits of its findings are decisive. Additional ground disturbance is compared with them separately.

Does a new plan automatically make an older result unusable?

No. The assessment checks which actual ground disturbance or conditions have changed and whether existing findings still apply.

What information helps where there are several construction sections?

Clear area labels, the planned depths for each, access prerequisites and the required stage of results make coordination easier.

Why are areas that cannot be interpreted retained in the report?

So that planners and site management can see which findings are still missing and which further tasks need clarification before groundworks planned there.

Project enquiry

Your documents for explosive ordnance assessment in Bavaria

Describe the construction area

Provide the position, ground disturbance and depths with the plan version.

Add the municipality concerned, plots and current elevation data. Mark preliminary ground disturbance, working spaces and options still open. Identify existing utility plans, construction dates and actual access. The enquiry describes the next findings needed and the person coordinating questions between planning and execution.

Include existing findings

Bring together existing reports, maps and outstanding questions clearly.

Identify the issuer, date and area investigated for each report. Include complete maps and legends. Identify a measure already completed together with its results documents. Link outstanding questions to the affected groundworks. Usable older findings remain part of the evidence; agree the specific additional needs for new volumes of ground.

Next step

Discuss your construction project in Bavaria with us

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.

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