Project pathway
The quickest route to the right decision.
Explosive ordnance surveying in Lörrach
Has part of your Lörrach construction area already been investigated while new groundworks are planned elsewhere? FONTANA-EOD helps project owners, designers and site managers relate documented earlier works to the next ground disturbance. Send complete reports, maps and the plan for the new section so that the additional specialist commission can focus on the areas still outstanding.
Locate earlier working areas.
Compare results with the maps.
Clarify outstanding areas beforehand.
Assess the construction project
What matters for subareas already investigated in Lörrach?
For explosive ordnance assessment before construction in Lörrach, previously investigated areas and depths are compared with the next groundworks. The services carried out, results and limits of conclusions in the complete reports are decisive. A neighbouring area already addressed answers the question for a new connection only after this spatial comparison. Remaining investigation needs determine the additional commission.
Project site
Connect the site with the specific construction task
Read the Schöpflin site and Hugenmatt documents with their supporting evidence
The Schöpflin draft of 27 April 2026 distinguishes subareas already investigated and, where necessary, cleared. The Hugenmatt explanatory statement of 11 December 2018 refers to plan LÖ 1222. For current groundworks, these references are brought together with the later reports actually available and the current ground disturbance design. Lörrach lies in the Lörrach district, Freiburg administrative district, in Baden-Württemberg. Provide the project address and cadastral plots for identification. For a project outside the town boundary, the responsible municipality is named according to the actual location. The KMBD based at the Stuttgart regional authority operates statewide. Further regional contacts are identified through the regional overview.
Local context
Lörrach during the Second World War and evidence for the present construction area
Distinguish the subareas in the Schöpflin draft
The accompanying volume on the Nazi era from the City Archive and Dreiländermuseum describes local businesses switching to armaments production, including dynamos manufactured at KBC. From November 1944, Lörrach came under more frequent artillery fire from Alsace. The volume records a bombing raid in Baumgartnerstraße on 5 December 1944. Fighting occurred during the advance of French troops on 24 April 1945; shortly before their arrival, the Wiesenbrücke bridge on the Lörrach–Weil line was demolished. In historical research, such information on industrial sites, shelling and transport routes is compared with the specific working areas. The local course of the war and present knowledge for an individual plot are assessed separately.
The draft text for Schöpflin-Areal, amendment 1, dated 27 April 2026 refers to an aerial photograph assessment from 2013 and location within a bombing area. It expressly distinguishes subareas already investigated for explosive ordnance and, where necessary, cleared. The draft identifies an appropriate survey before construction works that disturb the ground. This statement concerns this planning area; it is not a general requirement for all of Lörrach.
Follow the Hugenmatt reference through to evidence of the works carried out
The explanatory statement for Hugenmatt IV – Gewerbe, adopted by resolution on 11 December 2018, also refers to a specific explosive ordnance plan: LÖ 1222. It describes indications for further measures and the limits of a historical aerial photograph assessment. Such documents help explain the knowledge available at the time. Whether investigation or clearance was actually carried out later must be established from the associated execution reports.
Requirements
Clarify technical requirements and responsibilities within the project
Relate requirements to the specialist task
For the commissioned work, the applicable technical requirements, permits, competence and responsibilities are clarified. The actual scope of work is what matters. Tasks and interfaces are described for the project and checked against the required authorisations.
Link occupational safety to the construction sequence
The risk assessment, work areas and communication arrangements must suit the planned activities. Specialist explosive ordnance work is coordinated with the other construction activities. Site organisation, traffic safety and other technical assessments retain their own responsible parties. Joint coordination assigns the relevant specialist work and responsibilities to the affected construction sections.
Use technical findings correctly
A measurement anomaly first requires specialist assessment; its appearance alone does not identify it as explosive ordnance. If an object is genuinely suspected to be ordnance, the prescribed reporting procedures and the measures set by the responsible authorities apply. Investigation reports specify the work completed and its limitations, so that results are not extended to unexamined areas or later design changes.
The Schöpflin draft of 27 April 2026 distinguishes subareas already investigated from work still required. The Hugenmatt explanatory statement of 11 December 2018 identifies the findings available then and plan LÖ 1222. Both documents are brought together with later execution reports and the current design.
The BFR KMR guidelines on clearance planning describe preparation of the clearance task. The sections on geophysics support method selection, while those on Documentation support a traceable handover of results. The DGUV FAQs on explosive ordnance clearance explain technical requirements. The Baden-Württemberg state information describes the state's duties.
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 client describes the project and provides the available project records. The operator adds requirements for use, access and timing. A coordinating contact brings the parties together; individual tasks remain assigned to the named parties. Before commissioning, it is clearly recorded what information is missing, who will obtain it and what decision the result is intended to prepare.
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 work. Requirements and decisions of public authorities are addressed with the responsible bodies. The documents needed for a particular procedure depend on the location and project. The technical report describes the work carried out, including its documented area, depth and scope. Decisions reserved for public authorities are made by those authorities.
For Lörrach, the explosive ordnance disposal service at the Stuttgart regional authority is the statewide specialist authority. A commission for aerial photograph assessment is prepared with an application and an unambiguously bounded site plan. Local project identification depends on the town boundary and actual location. The project owner and designers assemble existing information, reports and construction drawings. The private specialist contractor describes the agreed investigation with its results and limits. Official requirements and decisions are coordinated with the responsible authorities. For several construction sections, those responsible and the knowledge handed over for each remain traceable.
Investigation task
Which specialist task comes next?
Consider earlier works in further planning
Usable investigations already available inform the comparison. Further needs follow from outstanding areas, depths and tasks. Acquiring a plot or starting a new construction section alone does not prescribe a method. Existing evidence and the groundworks actually proposed are decisive.
Identify further specialist services for outstanding subareasCoordinate investigation and construction sequence for outstanding areas
If further works are needed, clarify their prerequisites before the affected ground disturbance. These include access, installed structures and the sequence of construction sections. The method is directed at the specific task. Documented limitations remain identifiable in the sequence and are not replaced by a neighbouring area already addressed.
Compare investigation methodsProject types
Bring documented earlier works and outstanding construction sections together
Assign historical and technical results separately
An aerial photograph assessment describes a different level of knowledge from a later survey or clearance operation carried out. Provide the existing reports together. Each document must identify the area and task it concerns. Specialist assessment considers these results together without equating earlier suspicion with later evidence of completed works.
Assign historical and technical evidence together
Describe the outstanding subarea precisely
Mark the excavation, utility trench or new foundation on the current plan. Show transitions between older and new sections in particular. Add planned depths and existing elevation references. This allows a targeted check of which ground disturbance is already covered by results and which additional questions remain.
For a connecting corridor between two construction sections, show both connection points and the route between them. Even a short utility may pass through a strip not previously addressed. Planning documents show the areas and depths the earlier specialist commission actually covered. Additional pits, shafts and working space receive their own references. A new street name or changed cadastral plot number is compared with the earlier reference. The assessment can then make targeted use of existing results and define the additional work needed spatially.
Compare specialist servicesPass on the scope reached and limitations
Reports and maps are handed to site management with the associated design. Outstanding areas and further steps needed must remain identifiable. For phased execution, the status is updated for the next area. A result for one section does not extend to other areas merely because they share a project name.
The handover of results identifies the stage actually reached for each section. A survey report documents methods, measurement data, spatial scope and assessment of findings. For clearance works carried out, a clearance record with the areas addressed belongs in the file. Drawings and reports remain linked to the commission. Outstanding areas are handed over with the subsequent task required. This information must also be passed on if the contractor or specialist planner changes. The next work is compared with the documented result according to its own area, depth and service needs. The Clearance documentation records the documented service scope.
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 realistic programme distinguishes technically resolved work from prerequisites that are still outstanding. If only part of a site will be accessible, the commission must take this into account. Handover and assessment of the results also need time in the construction programme. The schedule and effort are agreed once the scope, access and prerequisites are clear. This coordination brings together the specified scope, access, documents, site conditions and the date by which a decision is needed.
Discuss the scope and scheduleTasks at the site
Relate earlier works to the next construction section
01
Establish the area addressed
Look for the report on the investigation actually carried out, rather than only a quotation or programme. A commissioned service is not yet a documented result. Evidence includes the area investigated, investigation objective and limitations described. Missing appendices should be obtained before assessing the next construction section.
For each earlier investigation result, first locate the associated plan appendix. Read a summary conclusion together with the measurement scope, method and limitations. Where several reports exist, their boundaries are overlaid on a common drawing. Overlaps and gaps remain identifiable. If older boundaries cannot yet be located reliably, clarify this before applying them to the new design. Obtaining a missing plan may be necessary first, rather than repeating technical investigation across the entire area.
02
Compare the plan with the site
Transfer the documented investigation boundaries to the current site plan. Pay particular attention to edges and transitions between older and new construction sections. An already developed neighbouring area does not automatically answer the question for a new utility connection. Here too, it must be clear whether existing results cover the proposed ground disturbance.
03
Check investigated depth against new ground disturbance
An earlier investigation is usable only within its described scope. If new foundations or other works extend deeper, their coverage requires specialist review. State the planned ground disturbance depths and associated elevation reference, where available. Showing an area alone does not support unlimited conclusions for all ground beneath it.
Elevations are related to the reference system used and ground level at the time. Later fill or excavation changes the distance between the present surface and the volume of ground previously investigated. Add available existing-site plans and documented changes in ground level. A deeper foundation may extend below an area previously covered; a trench moved sideways may occupy a new area despite the same depth. The specialist commission describes these differences alongside results still usable. Site management receives the scope defined this way for the next work.
04
Distinguish the draft from evidence of execution
The Schöpflin text of 27 April 2026 is identified as a draft. A service described there as still required does not confirm that it has already been carried out. For your project, assemble the relevant planning stage, existing official requirements and available specialist reports. An older draft should not silently be treated as current evidence of completion.
Project documents
Documents that establish the next step
Establish execution using the actual documents
A quotation, commission and programme describe planned works. Execution reports with appendices are needed to establish the investigation status achieved. If these are missing, identify the gap explicitly. Specialist assessment can then distinguish documents that need to be obtained from a specific investigation still to be carried out. The initial file includes the site plan, cadastral plots, construction area or route, and historical records. Measurement data, survey results and assessment of findings are linked together. Where clearance works were actually carried out, the clearance record adds details of the scope addressed. The conclusion identifies the stage reached and further steps for outstanding areas.
Compare boundaries and depths together
An area shown on a plan alone says little about the depths investigated or the objective at the time. Read these details in the associated report. For new ground disturbance, compare location and depth. Unclear elevation references and differing designs remain outstanding questions until clarified traceably by specialists.
Construction sequence
Coordinate investigation and construction sections
Assemble reports by subarea
Assign existing documents to the affected sections and mark missing appendices. Enclose the design of the next ground disturbance. This overview helps initial specialist coordination. Further commissioning can address specific outstanding questions without repeating all earlier work indiscriminately.
Check changes between construction sections again
A new connecting trench or relocated foundation may affect an area not previously covered. Communicate the change with location and depth. Existing information is compared against it. Site management receives the additional results with the documents still applicable and their respective limits.
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
Clarify investigation needs for outstanding subareas
Determine the need from existing results
The Historical aerial photograph analysis may provide information on earlier wartime effects. Surveys and clearance operations carried out answer different questions and are documented separately. For a new construction section, this information is assessed together. A change of owner alone replaces no report and does not itself justify a particular new investigation.
Match measurement to the outstanding area
If Surveying is required, its scope is derived from the planned ground disturbance and usable earlier work. Known foundations, utilities and other structures must inform method selection. Where investigation is insufficient, the limitation must be clearly identified and a further approach agreed by specialists.
If you wish to have a suspected explosive ordnance area in Lörrach assessed, the grounds for suspicion and conclusion required are related to the proposed volume of ground. Suspected target objects, ground structure and interfering objects affect method selection. Utilities, reinforcement, old foundations and fill containing metal may limit measurement conditions. Clearance for a borehole receives a point location and documented depth range. For deep-ground surveying or area clearance, the areas to address and prerequisites are defined. Analysis distinguishes usable measurements, findings and remaining measurement limits. Further steps are described for outstanding areas. The Surveying is directed at the investigation objective required.
Bring construction sections into one sequence
Any necessary Clearance plan assigns measures to the respective working areas. It should account for a later connection passing through a strip not yet clarified. Preparatory groundworks must not pre-empt the necessary clarification. Merely watching excavation does not replace a proper specialist investigation or suitable explosive ordnance clearance during construction.
For tendering, outstanding specialist works are separated from prerequisite services already evidenced. All bidders receive the same drawing revision with areas, depths and known limitations. Add information on access, ongoing use and coordination with other trades. For phased execution, agree the interim results needed and handover points. Suitable excavation monitoring is planned with its remit and prerequisites. Specialist planners receive changes to routes or foundations before the affected ground disturbance. Necessary protective measures are agreed with those actually carrying out the work. Any necessary Ordnance recovery is coordinated with the technical task and responsibility.
Next steps
What should still be clarified before commissioning
Organise documents by area
Assemble the existing reports for the affected subareas. A brief overview can show which report belongs to which section. Explicitly record missing details. Initial coordination can then establish whether documents must first be obtained or whether specific investigation needs can already be described. Initial contact records the project location, next work and decision required. Document review assigns execution reports and appendices to the affected subareas.
Identify the next ground disturbance precisely
Describe the forthcoming work and its location, such as an excavation or utility trench between two construction sections. An overall plan alone does not always show the area to be occupied next. The work sequence helps schedule necessary clarification and prerequisite services appropriately. Where basic information remains outstanding, historical research and aerial photograph assessment are carried out. Method selection considers the grounds for suspicion, target objects, volume of ground, interference and access.
Agree services and handover
Define the investigation scope technically required and prerequisites for the work. This includes how results are handed to site management. Official duties and requirements remain unaffected. A service confined to one section must not later be used as evidence for unrelated areas. The agreed survey or suitable supervision addresses the defined areas. Assessment relates findings and measurement limits to the specific construction task.
Account for changes in the construction sequence
If a planned connection moves or an additional foundation is needed, compare the new ground disturbance with existing results. Where they differ, clarify before the affected works whether further steps are needed. Keep the relevant drawing revision with the specialist assessment. The report and location appendices, together with the clearance record where clearance works were carried out, document the specialist services. The subsequent decision defines further investigations or coordination for outstanding areas.
Documentation
Statewide responsibility and services for your construction area
Findings and their scope
The responsible state service for Lörrach is the explosive ordnance disposal service at the Stuttgart regional authority. Subject to its capacity, it provides advice, searches and recovery against reimbursement of costs. Otherwise, private specialist contractors must be commissioned for these works. Rendering recovered explosive ordnance safe remains one of its state duties.
Project responsibilities
FONTANA-EOD agrees with you the specialist services needed for areas of your construction project still unresolved. Documented earlier works and proposed ground disturbance provide the basis. Outside their federal scope, the BFR KMR guidelines offer technical guidance; their use replaces neither local requirements nor assessment of the specific construction area.
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
Relate the planning stage to services carried out
A draft plan may identify measures required or refer to earlier works. The associated reports show whether further investigations have since been completed. Record each planning stage. Specialist assessment uses the actual knowledge available for the affected area and does not treat a task description as evidence of completion.
Understand investigation reports and their limitationsHand over complete documents when participants change
The report, maps and relevant additions should be passed on together. The next project phase needs the original limits of conclusions. A brief handover note can help locate documents but does not replace appendices. This allows later changes to be checked against the areas and ground disturbance already considered by specialists. Connecting trenches are also shown as separate areas of ground disturbance if evidence for adjoining sections does not cover them. When participants change, complete reports, maps, additions, associated drawing revisions and outstanding tasks are handed over.
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. In your enquiry, describe the planned groundworks and knowledge required. Conditions for industrial and infrastructure projects also form part of preparation.
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 investigated subareas in Lörrach
Does an old quotation suffice as evidence of an investigation?
No. It describes a planned or offered service. Whether an investigation was carried out and its results are established by execution reports, including the associated areas and limitations.
What does the reference to subareas in the Schöpflin draft mean?
The draft distinguishes areas already investigated and, where necessary, cleared from other areas. Using this distinction requires the specific reports. The planning text alone does not document an investigation carried out later.
Can an investigation be applied to the next construction section?
Only where its documented area, depth and conclusion actually cover the new ground disturbance. Mere adjacency is insufficient. Clarify additional needs before the groundworks planned there. Agree investigation needs with the specialist contractor and official requirements with the responsible authority before the affected works. The KMBD commission for preliminary investigation requires an application and a bounded site plan. The technical process connects document review, necessary historical assessment and method selection with investigation, assessment and documentation.
Does a geotechnical report also establish explosive ordnance assessment?
Not by its name alone. Geotechnical findings and explosive ordnance investigations answer different questions. The services actually carried out and their documented results are decisive.
What should be done if a suspicious object is found?
Stop work, leave the object untouched and keep other people away. Call the police on 110 from a safe distance and follow the instructions of the responsible authorities.
Why must depth details have a traceable elevation reference?
The reference helps compare planned ground disturbance and earlier investigation results spatially. Provide existing elevations together with the location and depth of the new works. Missing or ambiguous information is clarified by specialists before assigning an existing result to the new ground disturbance. Method, ground structure and interference also limit the conclusions of a technical investigation. Areas that cannot be adequately assessed are identified in the report with their locations and further work needed.
Which documents record the works carried out?
The report and location appendices show the areas addressed, depths, results and investigation limits. Where clearance works were actually carried out, the clearance record is included. Documents are passed on with tasks still outstanding for the next section.
What determines the work involved in an additional investigation?
Usable earlier works, missing documents, research needs and the newly required area and depth influence the work involved. Access, interference, analysis, documentation and, where applicable, examination of findings are added. Costs of state KMBD services are considered separately from private specialist commissions.
Project enquiry
Prepare the first technical discussion
Organise earlier works by area
Send execution reports and maps for the affected subareas. Add the address, cadastral plots, existing aerial photograph assessments, utility plans and official conditions with their respective revisions.
Mark the next section
Show planned ground disturbance, depths and transitions to outstanding areas. Identify the construction area, routes, drilling points, ground disturbance depths, construction dates, project status and decision required.
Project process and documents
Project process and documentsMethods and technology
Methods and technology
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.
