Person in high-visibility clothing beside a utility trench, with solar panels and wind turbines in the background.

Explosive ordnance assessment for pumping stations and pressure pipelines

Before a pumping station is built, the excavation, foundations, pressure pipeline and temporary arrangements are checked against existing explosive ordnance documents. FONTANA-EOD plans suitable investigations according to structure geometry, depth, existing surroundings and operational phase. Send structure and pipeline plans, sections, depths and alteration and bypass phases so that services and documentation can be defined before the respective ground interventions.

Divide the structure into areas

Assign the shaft, building and connections.

Record the route

Define the pipeline axis, chambers and crossings.

Coordinate alteration phases

Coordinate alterations, bypass arrangements and documentation.

Other pipeline projects

Have the pumping station and pipeline assessed Select suitable investigation services

Bring the structure and pipeline together in a specialist assessment

Clarify investigation needs for shaft construction and the pressure pipeline

Before a pumping station is newly built or altered, investigation needs are clarified using existing indications of a suspected hazard and planned ground interventions. The pumping station excavation, shafts, foundations and pressure pipeline axis are considered by position, depth and construction method. Existing utilities, pumping equipment and structures also determine when an area is accessible and which investigation method may suit it. The documentation distinguishes the structural and pipeline areas addressed and identifies unresolved zones and the next investigation steps.

Submit structure and route plans Investigate deep shaft and foundation points

Address plant and route geometries separately

Plan the shaft, operations building and pipeline sections separately

The pumping station and pressure pipeline connect a compact, often deep plant area with a linear pipeline structure. The shaft, building, foundations, pipe trench, valves and crossings differ in area, depth and alterations from technical installations.

The explosive ordnance investigation therefore follows the specific construction and operational condition. For each volume of ground affected, existing investigations and outstanding tasks are documented.

For refurbishment or replacement construction, existing plant, temporary arrangements, demolition and new construction are documented separately in space and time.

Person beside a survey instrument on a construction site; a wheeled excavator with drilling equipment stands behind them.

Wet well and shaft structure

For wet wells and wet or dry shafts, intended depths are taken from layouts and sections. Excavation, retaining structures, foundations, base and working space determine the explosive ordnance investigation geometry.

Near-surface surveys can cover clear peripheral areas but do not automatically address the deeper shaft and retaining structure volume.

Investigate the shaft and depth volume

Survey trolley on an undeveloped construction site, with soil piles and a row of trees in the background.

Operations building and technical foundations

Machinery rooms, operations buildings, transformer or switchgear areas, pipe supports and equipment need foundations, ground slabs and utility connections.

The investigation relates to the excavation, foundation depth, piles where applicable and transitions to pipelines and shafts.

Investigate building and foundation areas

Pressure pipeline trench

The pressure pipeline forms a linear working corridor with changing depths, bends, high and low points and different surfaces and properties.

The axis, working width, retaining structures, soil storage and construction section are documented by chainage so that the investigation covers the actual earthworks volume.

Investigate the pressure pipeline section

Two people discussing plans at a table beside a vehicle on a construction site.

Valve, air-release and drain points

Chambers and technical points create additional deeper areas outside the standard trench. Their positions, depths and construction methods may change during the project.

Each point receives its own object identifier and is linked to the adjoining pipeline section without losing its distinct geometry.

Assign valve points and documentation

Crossings and special structures

Roads, watercourses, railway lines or existing utilities may require open-cut or trenchless crossings. Launch and reception pits, drilling paths and pipeline transitions are separate investigation volumes.

The methodology is coordinated with pits, depth alignment, possible positional deviations and technical sources of interference.

Investigate crossing and drilling areas

Alterations during ongoing operations

During renewal, old plant, temporary pumping arrangements, bypass pipelines, demolition and new construction must be coordinated in time. Parts of the volume of ground affected may become accessible only after decommissioning or demolition.

These construction conditions receive their own investigation dates and handover points so that unresolved areas are not mistakenly treated as addressed.

Document investigation status and handovers for each construction phase

From site concept to an executable construction phase

What must be clarified before site selection, tendering and alterations

Pumping station projects develop from site and route options through structure and pipeline design to alterations during ongoing operations. The investigation needed for the upcoming decision is assessed.

Existing information on the structure, pipeline section, depth and construction condition is compiled for this purpose.

Site selection and options appraisal

During the early phase, it is assessed whether the pumping station location, pressure pipeline options and planned construction areas affect historical suspected areas or zones with difficult access.

The assessment helps integrate ground investigations and technical investigations into the programme.

It does not yet establish the present-day position of individual objects.

Assess the site and route historically

Shaft and excavation design

Depth, diameter, retaining structures, foundations and working space describe the pumping station area to be investigated.

Boreholes, piles, sheet piles or shaft axes are planned with point and depth references.

Peripheral areas and pipeline connections are added as separate subareas.

Investigate the shaft and excavation support at depth

Pressure pipeline and special points

The pipeline axis, standard cross-section, bends, chambers, valves, crossings and transitions are described section by section.

Investigation geometry follows the entire trench and excavation volume, not just the pipe axis.

For different depths or trenchless construction, it is assessed which methods are suitable and which documentation they can provide.

Coordinate pipeline and special points

Procurement of plant and civil engineering services

Historical assessment, area survey, deep-ground investigation, excavation supervision and possible work on findings are described as different services.

Areas, point quantities, depths, construction conditions, access and documentation duties are assigned unambiguously.

Tenders and later variations thus remain technically traceable.

Structure the specification and documentation

Alterations and maintenance of operations

For existing plant, temporary arrangements, bypass pipelines, decommissioning and demolition steps can change access.

Each construction condition is checked against the existing investigation. For inaccessible zones, later investigation timings and suitable supplementary methods are assessed.

Operational permits to work and specialist investigation status remain separate.

Select investigation for the individual construction conditions

Anomaly within the structure or pipeline volume

A geophysical anomaly may be caused by a utility, foundation remnant, scrap metal or an object relevant to explosive ordnance.

Further work is prepared according to position, depth, existing surroundings and planned intervention.

For a suspicious object, stop work immediately, keep a safe distance and notify the police immediately on 110 in Germany; outside Germany, the local emergency reporting procedure applies.

Document findings and further work

Bring together the structure, route and documentation

Plan investigations for shafts, pipelines and demolition

The pumping station site and pipeline route are maintained in the same project file but are not treated with the same investigation geometry. For deep structures, pipe trenches and individual valve points, the investigations needed are determined separately using the planned interventions and existing information.

For each area, the conclusion describes the status reached and the measure still required before the next construction section.

New pumping station site without a preliminary technical investigation

Initial situation: The property and initial plant location are defined; excavation and foundations have not yet been finalised.

Technical step: Historical evidence supporting a suspected hazard and existing site information are assessed and related to the intended plant area.

Documentation objective: Designers can identify which subareas and deep interventions require further technical investigation.

Have the suspected hazard at the site assessed by specialists

Deep wet well with retaining structures

Initial situation: The excavation, shaft axis, retaining structures and design depth are defined.

Technical step: Near-surface areas and deep points or retaining structure axes are addressed separately using suitable methods.

Documentation objective: The full documented volume of ground receives a traceable status before shaft construction.

Investigate the shaft and retaining structure axes

Pressure pipeline on a clear route

Initial situation: The pipeline axis, trench width and depth are known; the area is accessible.

Technical step: A suitable area survey method is selected according to the target object, ground conditions and surface.

Documentation objective: Survey coverage, unusual findings and unresolved zones are documented by chainage.

Survey the pressure pipeline section

Existing pumping station with demolition

Initial situation: The old structure, steel, utilities and operations prevent a complete preliminary investigation.

Technical step: freely accessible areas are investigated in advance. For further zones, suitable investigations and possible dates before or after individual demolition steps are defined. Necessary investigations and protective measures are planned before preparatory ground interventions.

Documentation objective: Each construction condition clearly shows the volumes addressed and those still unresolved.

Determine suitable methods before and after demolition

Trenchless pipeline crossing

Initial situation: The launch and reception pits are connected by a deep drilling or jacking path.

Technical step: Pits, starting points and depth alignment are treated as separate investigation geometries.

Documentation objective: The documentation makes clear which conclusion applies to the pits and which to the crossing volume.

Investigate the crossing volume with reference to depth

Suspected location within the shaft or pipeline area

Initial situation: A survey or historical information indicates further investigation needs within the planned volume of ground affected.

Technical step: The anomaly, existing infrastructure, depth and subsequent construction method are assessed together and further work is organised.

Documentation objective: Findings, handover and remaining limitations are unambiguously assigned to the structure or pipeline section.

Record findings status and remaining working limits

Document the pumping station, pressure pipeline and construction phases

Assign results to the structure and pipeline section

The pumping station and pressure pipeline need a common but differentiated project file. Structure areas, deep points, pipeline sections and special structures must remain clearly assigned.

For alterations during operations, it must also remain clear to which demolition or new construction condition a conclusion applies.

Site, plant and route data

The address, land parcel, coordinate system, pumping station position, pipeline axis, chainage and current plan revision establish the spatial reference.

Existing structures, demolition, new construction and temporary arrangements are identified separately.

Structure and depth geometry

The shaft, excavation, retaining structures, piles, foundations, buildings and pipeline connections are documented by area and depth.

The documentation shows which geometry was actually addressed.

Historical and technical evidence

Aerial photograph assessments, authority information, historical reports, existing utilities, ground investigation data and known findings are brought together.

The available sources and gaps in data remain distinguishable from survey results.

Survey and field documents

Survey areas, drilling points, depths, lines, construction conditions, surface conditions and technical sources of interference are recorded traceably.

Raw data, evaluation and the site plan use the same structure and chainage identifiers.

Areas that cannot be investigated and changed areas

Existing plant, steel, utilities, lack of access or changed construction phases can limit investigation.

For these zones, position and construction condition are recorded. The suitable supplementary investigation and when it can take place are clarified separately.

Final status for the structure and pipeline

The report and plans bring together areas, points and depths addressed, findings, limitations and subsequent decisions.

Design changes are checked before the existing status is reused.

Coordinate plant and route documentation Have structure and pipeline plans reviewed

Connect plant construction, pipeline construction and operations

Bring documents together for the operator and site management

The dossier maintains historical assessment, technical investigation, construction conditions and follow-up measures in a common structure. The operator and site management can thus distinguish the plant area from the pipeline section while retaining an overview of overall status.

For refurbishment, it remains clear which conclusion applies to existing plant, temporary arrangements, demolition or new construction.

Plant and route register

The pumping station, buildings, shafts, foundations, pipeline sections, valves and crossings are maintained in a consistent object structure.

The plan version and revision show which geometry formed the basis of each investigation.

Historical data basis

Suspected areas, previous uses and known information on finds are related to the plant area and pipeline corridor.

Historical conclusions and technical survey results remain separately traceable.

Survey, drilling and excavation data

Areas, points, depths, lines and field conditions are stored with geographical references.

The datasets can be linked to excavation, retaining structure and pipeline design.

Findings and action status

Anomalies, exposure work, technical interfering objects and actual finds receive an updatable status.

Outstanding points are recorded with follow-up measures and construction phase references.

Operational and project communication

The operator, designers, site management, HSE, plant contractors, civil engineering teams and competent authorities receive documents relevant to their roles.

Handovers identify the construction condition, unresolved volume of ground and next decision required.

Project file and updates

Reports, site plans, point and section lists and records are brought together for long-term use. Following actual exposure or clearance work, the corresponding findings and clearance records are included.

Additional chambers, pipeline relocations or changed alteration phases are documented as supplementary work.

Structure the project file and handovers Clarify documentation needs for the pumping station and pipeline

From site concept to commissioning

From as-built plans to handover of investigated areas

The work follows design maturity and construction condition. Early clarification of suspected hazards supports site and route planning; as detail increases, technical investigation relates to the shaft, excavation, foundations and pipeline sections.

For alterations to existing plant, later access and operational handovers are considered during investigation planning.

Record the project and operational condition

New construction, replacement construction or refurbishment, the pumping station location, pressure pipeline sections, construction phases and decision needed are described.

Existing plant and planned temporary arrangements remain separate from the new construction geometry.

Assess records and suspected hazards

Historical assessments, authority guidance, historical plans, existing utilities, ground investigation data and earlier survey reports are compared spatially.

Missing or contradictory information is documented as outstanding project points.

Define structures and pipeline volumes

The shaft, building, excavation, foundations, retaining structures, pipe trench, valve points and crossings are recorded by area and depth.

This geometry provides the basis for procurement and fieldwork planning.

Select methods and construction conditions

The target object, ground conditions, surface, alterations from technical installations, access and required depth determine the appropriate combination.

For existing and demolition areas, it is assessed which supplementary methods are suitable and under which construction condition they can be used.

Coordinate access and work organisation

Operational permissions, temporary arrangements, protection zones, surveying, dewatering, equipment and contacts are clarified before mobilisation.

The sequence is linked to civil engineering, plant construction and pipeline installation.

Carry out surveying and monitoring

The agreed area-specific, depth-related or construction-stage investigations are carried out within the documented structure and route geometry.

Deviations and inaccessible areas are recorded immediately.

Assess data and findings

Survey values, anomalies, exposure work and known existing objects are checked for plausibility against the suspected hazard and construction planning.

For unresolved zones, information still needed and suitable further investigations are identified.

Hand over and update results

The report, plans, point lists, section status and limitations are prepared for the operator and site management.

New construction conditions, pipeline changes or additional structures trigger a targeted comparison.

Connect deep structures and linear routes

Record the shaft, retaining structures and pipeline alignment with their depths

The volume of ground affected by explosive ordnance investigation does not follow only the pumping station property or pipeline axis. The shaft, excavation, retaining structures, building, pipe trench, valve points and crossings are recorded separately.

In the shared site plan, the areas, depths and investigation limits of the structure and pipeline are stated separately.

From plant plan to full investigation geometry

The pumping station forms a concentrated plant area, partly at considerable depth. The pressure pipeline runs linearly and may cross changing ground, surface and existing infrastructure conditions over long distances.

For the shaft and excavation, the base, retaining structures, foundations and working space are described. For the pipeline, the axis, working width, trench depth, chambers, bends and crossings are added.

Existing buildings, utilities, valves and steel components can obscure individual survey methods. Planning therefore distinguishes clear survey areas, technically restricted areas and zones accessible only after demolition.

The final plan shows the volume actually addressed for each structural component and route section. Later alterations or positional changes can thus be checked against the existing status in a targeted way.

Wet well and shaft axis

Deep shaft structures are recorded with the axis, diameter, base, retaining structures, foundations and working space.

The investigation must cover the full later intervention; a near-surface area conclusion is not automatically sufficient.

Excavation and retaining structures

Slopes, sheet pile axes, bored piles, anchors or bracing may extend considerably beyond the shaft itself.

Each retaining element is recorded as its own point- or line-related volume using the location reference.

Operations building and ancillary foundations

Machinery buildings, technical rooms, transformers, pipe bridges and equipment create further area and point foundations.

Their excavations are linked to pipeline connections and the pumping station shaft without mixing their different depths.

Pressure pipeline trench and valve points

The pressure pipeline is described with its axis, working width, depth, bends, high and low points and chambers.

Valve and drain points receive their own identifiers and are assigned to the appropriate pipeline section.

Existing plant, temporary arrangements and demolition

Old utilities, steel, pumping equipment and foundations can restrict survey feasibility. Temporary pipelines also change access and the construction sequence.

The investigation is linked to defined operational and demolition conditions; unresolved zones remain identifiable until then.

Crossings and positional changes

Trenchless crossings, inverted siphons or relocated pipeline axes may reach deep volumes beyond the open trench.

Before execution, new alignments are compared with the existing investigation and supplementary investigation provided where needed.

Investigate shafts, retaining structures and deep points Submit pumping station and route geometry

Select an investigation

Align investigations with the shaft structure and pipeline axis

Describe excavation, retaining structures and foundations together

For the pumping station excavation, position, excavation depth, foundations and intended retaining structures are stated. Dewatering, connection pits and temporary working areas are included where ground interventions are planned. This geometry is compared with existing investigation results.

Check structure geometry against existing documentation

Two people with a tablet beside a marked construction area; plans lie in the foreground.

Consider existing operations and pipeline alignment

Pumping equipment, existing utilities and structural installations can limit access and survey conditions. Suitable methods are selected separately for the pipeline alignment and deep structures. Areas accessible only later are recorded with their intended investigation timing.

Select methods according to operations and pipeline alignment

Select methods according to the structure and pipeline

Which service addresses each part of the project

Historical assessment, geophysics, deep-ground survey and work during construction answer different questions. Selection follows shaft depth, pipeline alignment, existing surroundings and documentation needed.

A combination is useful where it covers clearly defined subvolumes and the results are brought together in a common project file.

Historical aerial photograph analysis

Relates historical sources and possible suspected areas to the pumping station site and pipeline corridor.

It does not replace a technical assessment of present-day objects in the ground.

Magnetometry

Can detect ferromagnetic anomalies on clear plant and route areas.

Buildings, steel, utilities, vehicles and scrap metal content can limit evaluation within existing sites.

TDEM

Detects time-dependent electromagnetic responses from conductive objects and can supplement certain area-specific investigation questions.

Existing utilities, ground conductivity and required depth are considered before deployment.

Ground-penetrating radar / GPR

Can show changes in structure and material, utilities or discrete reflections on suitable surfaces.

A reflection does not unambiguously identify explosive ordnance and must be checked against existing infrastructure and suspected hazard data.

Deep-ground and downhole surveys

Investigates defined shaft, pile, retaining structure and drilling points at the required depth.

Borehole geometry, surveyed interval and subsequent construction method must align.

Excavation supervision

Where explosive ordnance detection during construction is technically suitable, each working layer is surveyed and evaluated using technical methods. Controlled removal in layers and supplementary visual inspection then follow; these steps are repeated down to the agreed excavation base.

Excavation layers, stopping points, authority to give instructions, communication procedures, documentation and the volume of ground affected are defined in the work instruction before work begins.

Structure reference, route status and operational transitions

Coordinate investigation dates with demolition and operational changeovers

The investigation documents distinguish the pumping station, pipeline route and individual valve points. All results are assigned to the associated plan version and construction condition.

Refurbishment adds operational transitions, temporary arrangements and demolition conditions. Before fieldwork, it is clarified which areas are accessible under each construction condition.

Link each volume of ground affected to its construction and operational phase

FONTANA-EOD starts by asking which conclusion is needed for the shaft, excavation, building, pipeline section or crossing. The service is not derived from a general property assessment.

Method selection considers the historical suspected hazard, target object, depth, ground conditions, surface and alterations from technical installations. Existing plant and utilities are included in planning as actual survey and access limitations.

During execution, structure and route data remain linked to the current plan version. Changes to shaft geometry, retaining structures or pipeline alignment are assessed by specialists before ground intervention.

Unusual findings are communicated by component or chainage. Survey anomaly, technical interfering object and an actual find remain distinguishable so that site management and competent authorities can act unambiguously.

The final report identifies the work status reached and its limitations. The next construction or operational transition can thus be prepared without including uninvestigated zones.

For handover to operations, unresolved investigation areas, remaining construction conditions and follow-up measures not yet carried out are listed separately. The documentation thus remains usable after partial commissioning or handover of individual pipeline sections.

Have your pumping station project assessed by specialists Coordinate quality requirements and handovers

Record the shaft and pipeline separately

The shaft, building, foundations, pipeline and special points are described separately.

Select methods for area and depth

Methods follow depth, ground conditions, existing surroundings and the conclusion actually needed.

Coordinate access and alteration periods

Temporary arrangements, access, decommissioning and parallel trades are incorporated into the sequence.

Record results on the site plan

Survey areas, points, findings and limitations remain assigned to the plan version and object identifier.

Check changes against results

New construction conditions and pipeline changes are checked against the existing status.

Hand over results for construction and operations

The documents identify unresolved investigation areas and decisions needed before the next construction section.

Prepare the next construction section

Coordinate investigation and operational construction phases

Relate demolition and connection works to survey access

For alterations, it is recorded which areas are accessible before demolition and which can be investigated only after certain installations are removed. Dates are coordinated with site management and the operator so that outstanding investigations remain included in the construction sequence. Necessary investigations and protective measures are planned before ground interventions during demolition or preparation of access.

Agree the appropriate service

Hand over structure and pipeline documentation together

The shaft structure, connection pits and pressure pipeline sections receive unambiguous identifiers. The handover describes areas and depths addressed and areas still unresolved. The current plan version shows to which construction phase the results belong.

Identify the scope of the evidence

Responsibilities between operations and construction

Who supplies as-built plans, clarifies access and receives results

The pumping station and pressure pipeline bring together the operator, designers, civil engineering teams, plant contractors, HSE, the specialist company and competent authorities. Before execution, it is defined who reports design changes, tracks unresolved areas and receives results.

Specialist investigation work, operational permission and official decisions on a find remain identifiable as separate steps.

Client and operator

Municipal utility, association or infrastructure operator

Define the supply or drainage task, location, pipeline network, construction phases and documentation needed.

They provide existing as-built, operational and suspected hazard documents and commission the specialist services required.

Design

Engineering, ground and plant design

Translate the project into the shaft, excavation, foundations, building, pipeline axis, valve points and crossings.

Design changes are documented so that their effects on areas already addressed can be checked.

Operations and HSE

Operations management and safety organisation

Coordinate decommissioning, bypass arrangements, access, protection zones, dewatering, instruction and reporting procedures.

Their requirements determine when and under which conditions existing and demolition zones are accessible.

Construction execution

Civil engineering, pipeline and plant construction contractors

Construct the shaft, excavation, retaining structures, foundations, pipe trench, crossings and valves within the agreed geometry.

Different positions, greater depths or changed construction methods are coordinated with designers and the specialist company before ground intervention.

Specialist service

FONTANA-EOD

Assesses the suspected hazard and documents, develops the commissioned approach and records results and limitations.

The work relates to the structure, pipeline section, construction condition and specific project decision.

Competent authorities

KBD, KMBD, KRD and local authorities

In Germany, the ordnance disposal services of the federal states and the locally competent authorities carry out hazard-response and find-management duties. Their involvement is established for the project location; outside Germany, local responsibilities apply.

The local public order authority and, where applicable, building control are involved according to their project-specific responsibilities. Conditions and contacts are assigned to the pumping station location and actual pipeline sections; reporting procedures are defined before work begins.

If an unexpected suspicious object is found, notify the police immediately on 110 in Germany; outside Germany, the local emergency reporting procedure applies. The competent authorities determine the next steps.

Qualifications, excavation safety and operations

Which specialist foundations apply to pumping station and pressure pipeline construction

The activity, project location, excavation depth, operational condition and utility environment determine organisational requirements. Qualifications, risk assessment and documentation are defined in detail for the structure and route.

Operational rules, dewatering, retaining structure design and civil engineering planning supplement explosive ordnance investigation work without replacing its specialist limitations.

Explosives legislation, risk assessment and orderly project transitions

In Germany, § 7 SprengG concerns the commercial authorisation for activities requiring authorisation; § 20 SprengG concerns the certificate of competence of responsible persons. Under § 1b SprengG, searching for found munitions also counts as handling them. The requirements applicable to the project depend on the activity actually commissioned and the allocation of responsibilities.

The risk assessment connects deep excavations, shaft construction, retaining structures, dewatering, pipeline construction, existing plant, heavy equipment, escape routes and communication with the intended explosive ordnance work.

DGUV Information 201-027 supports risk assessment and protective measures for explosive ordnance clearance work. The Baufachlichen Richtlinien Kampfmittelräumung contain requirements for historical and technical investigation, clearance concepts, procurement and documentation within their defined scope of federal responsibilities. Their application to the specific pumping station and pressure pipeline project is clarified separately.

A planned preliminary assessment follows different procedures from an actual find. If an unexpected suspicious object is found, stop work in the affected area immediately. Do not touch, move or further expose the object. Leave the danger area and keep others away without putting yourself at risk. In Germany, notify the police immediately on 110; outside Germany, use the local emergency reporting procedure. The competent authorities determine the next steps. Then inform site management and the operator.

Technical commissioning, contractual acceptance, operational permission and official decisions on a find are maintained separately. The documents and decisions needed are defined for each transition.

The First Ordinance to the Explosives Act (1. SprengV) includes requirements concerning specialist competence and state-recognised training courses. For pumping stations and pressure pipelines, the required qualifications are related to the specific investigation or clearance assignment.

DGUV Rule 113-003 concerns the dismantling or destruction of explosives or corresponding objects and also includes the disposal of found munitions. It applies according to this field of activity; it does not replace a risk assessment specific to the planned ground intervention.

Permits and responsibility

The company, responsible personnel and scope of responsibility must suit the actual service.

Risk assessment

The shaft, retaining structures, dewatering, equipment, utilities, protection zones and reporting procedures are assessed together.

Service and documentation objective

The structure, route, points, depths, quality control and final documents are defined before procurement.

Finds reporting and operational procedures

Site management, the operator, HSE and competent authorities receive an agreed communication procedure.

Before tendering

Structure geometry, pipeline sections, point quantities, depths, access, qualifications and data formats are described comparably.

Provisional items receive clear triggers.

Before shaft and pipeline works

The plan version, surveying, retaining structures, dewatering, existing utilities, instruction and contacts are checked against each other.

Changes are incorporated into the task before work begins.

If a suspicious object is found

Stop work immediately, do not touch, move or further expose the object, leave the immediate area and keep others away without putting yourself at risk. In Germany, notify the police immediately on 110; outside Germany, the local emergency reporting procedure applies.

Then inform site management and the operator. Resumption of work follows the instructions of the competent authorities.

Agree the regulatory framework and evidence Clarify the procedure for a find

Maintain the structure and route in one project file

Which documents are used in practice within the pumping station project

The results connect historical evidence, technical investigation, construction conditions and operational transitions. Unambiguous assignment to the structure, pipeline section, plan version and depth is decisive.

Plant and route site plan

The plan connects structure areas, pipeline sections, crossings and current project stages.

Assess the pumping station and pressure pipeline within the utility project

Two monitors displaying aerial photographs and maps; further aerial photograph printouts lie on the desk.

Historical site and route assessment

Historical sources support the decision on which areas and depths need further technical investigation.

Assess historical site and route indications

Depth-related documentation for shafts and retaining structures

For deep interventions, the depth volume actually covered is documented. A general area figure alone is insufficient.

Investigate shafts and retaining structures with reference to depth

Person with a tablet at the edge of a cordoned-off excavation, with an excavator behind.

Excavation and construction phase record

Where explosive ordnance detection during construction is suitable, investigated excavation layers and unresolved areas are documented.

Arrange specialist supervision of excavation and construction phases

Findings and handover documentation

The documentation connects the circumstances of the find and technical decision on subsequent steps with the affected volume of ground.

Document findings and subsequent decisions

Project file for operations and site management

The operator and site management can trace the status of the pumping station and pressure pipeline separately and together.

Document the structure and route file

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.

From structure to a suitable specialist service

Specialist services for shaft construction, pipelines and demolition

Depending on the construction section, pumping station and pressure pipeline projects need historical clarification of suspected hazards, area or deep-ground surveys, controlled excavation or work on findings. The structure, pipeline and follow-up measures are each related to the appropriate scope of services.

For multi-phase measures, the next technical step is tied to the immediately upcoming construction or operational transition. Unresolved investigation areas, necessary follow-up measures and handover points thus remain clear to project participants.

Montage showing building construction, a railway, a utility trench, energy facilities, industry and road construction.

Sectors and applications

Plan ordnance assessments for transport, utility, energy and other infrastructure projects according to their ground interventions.

Compare other project types