Project pathway
The quickest route to the right decision.
Explosive ordnance surveying in Peine for alterations and extensions
If you are planning an extension, basement work or new service connections in Peine, you need information about the existing building and new groundworks. Building plans or earlier permits do not replace an explosive ordnance report. FONTANA-EOD clarifies with you what existing specialist documents already cover and which investigations are still needed.
Compare existing structures and new interventions.
Distinguish drawings from specialist evidence.
Request missing information specifically.
Assess the construction project
Consider existing buildings and new ground interventions together
An extension, new connection or removal of old foundations may affect ground volumes not previously covered. For your project in Peine, we compare the available specialist reports with the planned work. Unclear information about existing structures and unresolved explosive ordnance questions are clarified before each intervention. Whether an area with suspected ordnance is affected is clarified from the available findings for the specific site. The documents’ spatial coverage and planned intervention depths are decisive.
Project site
Connect the site with the specific construction task
Identify the project within Peine
For work on an existing property in Peine, identify the property, building and new intervention areas together. The city describes its route for inspecting building files; the specialist documents they contain are then checked within their own scope. For other locations, their enquiry routes must be clarified separately. Peine is in the Peine district of Lower Saxony. The plans, existing findings and proposed intervention depths determine the specific specialist task.
For regional information relevant to your construction project, the Braunschweig administrative area overview leads to further local information.
Local context
Assess building records and historical evidence in Peine
Access to existing building files
The City of Peine allows owners to apply to inspect house or building files. For third-party access, its service portal additionally specifies a declaration of consent or power of attorney. These documents can be useful for planning work on existing structures. Whether the required drawings and specialist reports are actually included can only be established by inspection. For historical context, the city chronicle describes development into an industrial location with the Peine rolling mill and important transport links. For the end of the war, it records the surrender of the city to American troops on 10 April 1945. For an existing site, this information is compared spatially with historical maps, aerial photographs and present-day interventions. A property assessment relies on the findings actually available for that purpose.
Different stages in the local planning example
The KBD documents published by the city for the third amendment to development plan 24 “Kötherkamp” in Vöhrum show why dates and map appendices must be read together. The statement dated 8 December 2020 recommends an aerial photograph assessment for part of the area. An attached results map dated 17 January 2022, by contrast, identifies no action needed following the aerial photograph assessment for its marked area. The older statement also identifies a gap in its data: findings from before the introduction of Lower Saxony’s explosive ordnance information system in June 2018 were not included in that recommendation; the municipality could consider them separately. For older explosive ordnance documents, therefore clarify the area covered by each result and whether later assessments exist. The Peine documents describe this planning case, rather than a current assessment of other properties.
Implications for the new interventions
Check whether a document describes explosive ordnance investigation of the affected ground or only construction planning or a permit. A basement wall marked on a drawing does not demonstrate investigation of the adjoining ground. Previous building use alone likewise does not establish that a new intervention has been investigated for explosive ordnance. A building file may show later extensions or alterations while historical aerial photographs show an earlier condition. Obtain the complete associated plans and identify missing periods. If the building footprint changes, record which areas were previously developed and which ground volumes are newly affected. For extensions, service connections and removal of old foundations, assign the findings needed to each planned task.
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.
Compare older recommendations and later results using the KBD documents for development plan 24 “Kötherkamp”. The City of Peine building control department explains the local points of contact; for existing house and building files, use the application to inspect building files. For unresolved explosive ordnance questions, the wartime aerial photograph analysis for hazard investigation and the tasks of municipalities, specialist companies and the KBD are related to the specific construction task.
In clearance planning the investigation objective, area and required specialist work are related to one another. The suitability of geophysical methods is checked for the actual conditions. Results, spatial references and limitations belong in the documentation. For work during construction, the DGUV guidance on explosive ordnance clearance and specialist planning are considered before execution.
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. § 1b SprengG also brings searching for munitions that have been found within the Act’s scope. The permits and certificates of competence needed for the specific task are assigned before commissioning.
Working together
Distinguish the tasks of client, designers and specialist contractor
Client and operator
The project owner describes the project and provides existing project documents. The operator adds requirements for use, access and timing. A coordinating contact agrees the tasks assigned to them with those responsible. Before commissioning, the missing information, who obtains it and the decision the result is intended to prepare are recorded clearly.
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?
Turn references in files into complete specialist records
A file note may refer to an earlier assessment or investigation. Obtain the complete records, including maps and appendices. Only then can the area actually concerned by the conclusion be understood. Where several versions exist, read the date and spatial reference together. An older recommendation and a later result may concern areas with different boundaries.
Assess historical documentsAdapt the method to existing structures and the construction task
Installations, paving and access affect the conditions of a necessary investigation. The commission therefore describes the planned intervention and result needed. Preliminary work, such as removing structures, is considered with its own specialist prerequisites. The investigation method is agreed for the specific existing structures, accessible areas and result needed. Where further spatial work is required, the necessary scope of area clearance is also agreed with the planned interventions and specialist assessment.
Compare investigation methodsProject types
Define the spatial and temporal scope of work on existing structures
An extension beside the existing building
New foundations and their working space often lie beside the previous footprint. Draw these areas, including the proposed connections. Existing explosive ordnance reports are compared with this additional area and the depths needed. Building drawings aid orientation but do not in themselves document investigation of adjoining ground. The actual findings and questions still unresolved are therefore compiled separately.
Specialist services and investigation tasks
Demolition as the first ground intervention
Removing a ground slab or old foundation may already affect the ground before construction of the new building starts. Describe the planned work stages with their depths and required working space. Unknown dimensions of old structures also form part of coordination. The prerequisites are clarified for this early intervention. An investigation scheduled later does not replace preparation for earlier groundworks.
Provide specialist supervision of excavation
Service connections while a building remains in use
A new connection may pass through paved external areas and beside existing installations. Its route, chambers and work areas are important for planning. Also identify the proposed access and restrictions arising from building use. The specialist planners can then assess under which conditions the affected areas can be investigated. Operational coordination and specialist explosive ordnance findings remain identifiable within their respective tasks.
Coordinate the sequence and tasksPreparation
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.
Identify the existing structures and areas being added: for example an extension with working space, a deeper chamber or a changed service alignment. The planners assign this information to a current plan. For several construction sections, record which part is investigated first and which further areas become accessible only later. Earlier reports are provided with their commissions and associated appendices. Specialist coordination can thus distinguish areas already investigated, missing documents and investigation actually still necessary.
Define the specialist taskCoordinate preparatory work with the investigation
Required access and measurement conditions are clarified before the appointment. These may include areas to be kept clear, available service information and coordination with other trades. The preliminary work actually needed depends on the selected method and site. Surface changes or additional interventions must not be undertaken independently merely to prepare for a measurement. Their sequence is agreed with the specialist planners and responsible parties. For an occupied building, deliveries, entrances and exits, and remaining operational areas are discussed with site management. Existing services and known installations are marked on the plan. State which areas will actually be accessible at the planned appointment and who organises access. If preliminary work is required, it receives an agreed sequence with the respective applicable prerequisites. Creating investigation access is also described as a task in its own right with the planned ground intervention.
Clarify preparatory work in the programmeAgree a clear scope and schedule
A reliable sequence distinguishes work whose specialist requirements have already been clarified from prerequisites still unresolved. If an area will be only partly accessible, this must be considered when commissioning. Handover and assessment of results also need time within the construction sequence. An enquiry therefore does not imply a general timing or cost commitment. Specific coordination links the described scope with access, documents, execution conditions and the date by which a decision is needed. Costing depends particularly on the size and geometry of the areas to be investigated, intervention depths, methods required and existing interference. Historical research, necessary preliminary work and clarification of unresolved findings may also be needed. Availability of complete documents, site access and necessary coordination are decisive for scheduling. Communicate changes before execution so that the scope of services, results documentation and dependencies can be agreed again with the client.
Discuss the scope and scheduleTasks at the site
Which groundworks are planned at the building?
01
Extensions and new foundations
An extension may affect ground outside the existing building footprint. Draw the planned foundations and required working space with their depths. An existing plan of the main building does not automatically cover this additional area.
02
Basements and deeper structures
If work on existing or newly planned deeper structures is intended, describe their position and depth. Identify uncertain information about existing structures and have it clarified before investigation planning. Do not rely on unchecked assumptions about basement position and dimensions.
03
Renewed building service connections
For new services or chambers, their route outside the building must also be considered. Old connection drawings may provide information but must be compared with the current design. A relocated alignment or different connection point may affect additional ground volumes.
04
Demolition and preliminary work
Removing foundations, ground slabs or other structures may itself involve ground interventions. Include these tasks in planning too. Clarify their specialist prerequisites before demolition, rather than only for the subsequent new construction.
Project documents
Documents that establish the next step
Identify the origin of information about existing structures
Distinguish information from old drawings, newer designs and surveys of existing conditions actually confirmed. Where dimensions conflict, the responsible planners clarify which version can be used. Explosive ordnance documents are recorded separately with their date, reference area and appendices. This arrangement helps target requests for missing building information without equating it with an unresolved investigation question. For several reports, retain an assignment to the respective areas and depths considered. A map appendix remains linked to its associated statement. Identify the version on which the present design is based and the question a supplementary commission should answer. Information on services carried over from earlier records is also identified by its origin and currency. The specialist company thus receives the evidence actually available for investigation planning; the responsible planners continue to clarify building and construction details.
Relate the handover to the next tasks
Before each intervention, site management needs the relevant reports and plans. Identify additional working space and connection areas not covered in particular. If different execution becomes necessary during alterations, the specialist planners receive the change beforehand. Comparison with the documented scope clarifies which conclusions remain applicable and which area needs supplementary consideration.
For handover, the commission, investigation report and plan appendices are assigned together. The report describes the areas actually investigated, method, specialist assessment and remaining limitations. If clearance work is carried out, a clearance record documents the areas covered, actual clearance scope and results for the project file. Unresolved areas are identified with their location and next necessary step. If site management or the contractor changes, this status and the associated documents are handed over to the new participants. A changed construction task is compared with existing findings before the next intervention.
Construction sequence
Coordinate investigation and construction sections
Before opening existing structures
The sequence starts with the earliest planned groundworks. Compile which structures are to be removed or opened and whether this affects the ground. Missing information about existing structures is clarified in good time. The specialist results and access needed are assigned to this first step so that investigation is not scheduled only for a later new construction section.
At the transition from demolition to new construction
After existing conditions change, the next work is compared with existing reports. Additional foundations, deeper services or larger working space may extend beyond the area previously considered. Record changes on the plan and pass them to the participants. The results handover describes the scope within which existing conclusions can be used.
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
Check construction records and explosive ordnance reports separately
Aerial photograph assessments and earlier investigations
An existing aerial-photo analysis is checked with its results area and limitations. It has a different purpose from a building drawing or building permit. If relevant specialist documents are mentioned in a building file, the complete reports and associated appendices should be obtained.
Measurement conditions at the existing building
Structures, paving and services may determine the conditions for a geophysical survey. Which investigation is suitable depends on the specialist objective and the specific existing structures. If installations must be removed for the investigation, the prerequisites for this demolition must also be clarified beforehand.
When supervision during construction may be considered
The explosive ordnance clearance during construction requires specialist planning. It must be distinguished from visual observation during excavation alone, which the DGUV states does not meet the state of the art. The tasks to be performed on site and suitable method must be clarified before work starts. The mere presence of a member of staff or an earlier building permit is insufficient.
Next steps
How to prepare explosive ordnance assessment
Obtain documents
Compile existing building and service plans, earlier specialist reports and current design documents. Where inspection of files is necessary, observe the access entitlements described by the city. Request missing appendices. A brief file note does not reveal their full contents. This information is used to coordinate the initial project enquiry. Existing explosive ordnance reports and official information are checked for their dates, areas and depths covered, and unresolved questions relating to the present construction task.
Compare existing structures and design
Mark which structures are to remain, be altered or removed. Add the associated planned ground interventions and work areas. Have the responsible planners clarify differences between the drawing and actual existing structures.
Coordinate research and investigation methods
Distinguish missing information about existing structures from unanswered explosive ordnance questions. Clarify whether existing-condition information needs supplying or further explosive ordnance investigations are necessary. The building’s age alone determines neither the purpose nor scope of a technical investigation. If the evidence is insufficient for specialist assessment, the necessary historical research or aerial photograph analysis is carried out. Its results are related to the present construction area and used for further investigation planning. On this basis, the specialist company determines a suitable approach from the investigation objective, intervention depth, existing structures and possible interference. The method required and access needed for it are explained.
Actually investigate the construction area
The commissioned investigation is carried out using the defined method in the accessible agreed areas. Specialists collect the measurement or investigation data needed for the task and record spatial references, execution conditions and areas not investigated. Departures from the design are agreed before the affected work continues.
Assess data and findings
The data and findings recorded are interpreted by specialists against the investigation objective, method used and possible interference. Anomalies and limitations are assigned to the actual investigation area. If a finding needs further clarification, the area concerned and suitable further approach are agreed with the responsible parties.
Hand over reports before groundworks
Define which documents site management and contractors need before each intervention. These include the boundaries and limitations of specialist conclusions. Also inform those involved of new findings and changes to the construction sequence. The work carried out and its specialist assessment are documented in a report with spatial references and necessary plan appendices. The documented scope and outstanding tasks are compared with the next construction section. The client and responsible project parties use this to agree further work and use of the results.
Documentation
File complete building plans and investigation results
Findings and their scope
In a project file, building drawings, permits and explosive ordnance reports should be unambiguously identified. Retain explosive ordnance reports with the information on investigation area, methods and limitations. An overview makes access easier. However, it must not indicate clearance for the entire project if the individual documents do not establish this.
Project responsibilities
The City of Peine describes local building supervision for the city and refers matters outside it to the district. This information on responsibility under building law must be distinguished from Lower Saxony’s allocation of responsibilities for explosive ordnance. The LGLN distinguishes commercial hazard investigation, statutory municipal measures and the KBD’s tasks.
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
Distinguish existing buildings from investigated ground
A drawing may describe a building’s position and dimensions. Whether and how the affected ground was investigated for explosive ordnance must be established from the relevant specialist documents. Both document types are needed for preparation but answer different questions. For new work, their information is brought together without inferring a conclusion about additional intervention areas merely from the existing building.
Understand investigation reports and their limitationsRead later results with the area they cover
A newer report may take up an older recommendation. Whether it addresses the whole former area or only part is shown by its appendices and commission. The date alone therefore does not determine which document is relevant to a new intervention. Read the chronology together with the maps and explicitly record areas not covered.
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. For your enquiry, identify the documents available and the result needed for the planned intervention.
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 explosive ordnance assessment for existing properties in Peine
Does my building file contain an explosive ordnance report?
This can only be established by examining the file. The city describes building files as documents relating to construction projects and permits. When inspecting it, check whether such a specialist report is present and which areas and interventions it covers. Clarify investigation needs and the results required before the affected groundworks, including necessary demolition work. For unresolved procedural questions, the competent local authority and KBD are involved within their respective remits.
Can a planner inspect the building file for me?
For third-party access, Peine’s service portal additionally specifies a declaration of consent or power of attorney from the owner or person entitled to dispose of the property. The city provides the current requirements and application procedure. A commission alone does not replace the required declaration of consent or power of attorney.
Does an existing basement mean the ground has already been investigated?
The existence of a basement alone is not specialist explosive ordnance evidence. For new work, the existing specialist documents, specific intervention and its position and depth are decisive. Different questions may need clarification outside or below earlier interventions.
Is an earlier permit sufficient for the new intervention?
Check which work the earlier building permit and its documents concern. It does not automatically replace investigation evidence for changed groundworks. Clarify both permissibility under building law and the explosive ordnance investigation needs of the new work.
What should I do if something suspicious appears during demolition?
Stop the affected work, do not touch or move the object and keep your distance. Keep other people away and notify the police on 110. Follow official instructions and do not resume work in the affected area on your own initiative.
What information matters if foundation dimensions are unknown?
Identify the uncertainty and the plans or surveys of existing conditions available. The responsible planners clarify which information is needed for the proposed intervention. Information about reinforced concrete and services helps method selection because these installations may affect measurements. The specialist company defines the areas in which investigation can provide meaningful findings under the actual conditions. Any necessary exposure work is agreed with its own specialist prerequisites before execution.
Can a newer report fully replace an older recommendation?
This depends on its documented subject and scope. Compare the associated maps, questions investigated and any measures carried out. A more recent date alone does not establish that all areas or recommendations previously considered are covered.
What affects the cost and timing of investigation during alterations?
The extent and depth of groundworks, available specialist documents, and existing installations and access are important. Necessary preliminary work and the sequence of demolition and new construction also affect planning. A shared task description makes quotations and results handovers traceable. The method needed, possible interference, supplementary research and areas actually accessible also determine cost and timing. The specific scope is agreed with the results documentation needed and the prerequisites for execution.
Project enquiry
Explosive ordnance assessment for your alterations in Peine
Show existing structures and new interventions
Provide available building and service plans together with the new design. Mark demolition, additional foundations and working space with their depths. Unclear or contradictory information about existing structures should be identifiable. Add existing explosive ordnance reports with their complete appendices.
Identify access and the first tasks
Describe which work takes place first and how the area can be accessed. State restrictions due to ongoing use or structures being retained. Identify the responsible planners, site contact and date by which specialist findings are needed.
Project process and documents
Project process and documentsReports and results handover
Reports and results handoverUnderstand regional responsibilities
Understand regional responsibilitiesPrepare the technical investigation
Prepare the technical investigationClarify further investigation of findings
Clarify further investigation of findingsDefine the construction task and application
Define the construction task and application
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.
