Preliminary UXO Risk Assessment

Delivered in conjunction with pioneering web mapping and spatial data technology, www.bombrisk.com is currently the only resource that provides an instantly downloadable report for your project site anywhere in the UK.

In most cases no further risk assessment or UXO mitigation is required.

Detailed UXO Risk Assessment

This report will deliver our most accurate UXO risk assessment available and will determine whether further UXO risk mitigation measures are necessary. This allows for effective and efficient planning and avoids the expense and disruption to projects caused by any unscheduled delays due to the unexpected discovery of Unexploded Ordnance (UXO).

UXO Risk Mitigation Strategy

This is included within our Detailed Threat / Risk Assessment at no extra cost. More detailed standalone UXO risk mitigation strategies are usually required for complex long term multi-phase projects.

Peer Review UXO Risk Assessments

As the recognised established market leader in UXO risk mitigation Dynasafe BACTEC regularly requested to review, correct, corroborate and enhance reports from other specialist UXO companies.

With over 3,500 UXO risk assessments completed to date worldwide Dynasafe BACTEC’s knowledge, expertise and experience is something that can be relied upon.

 

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

Preliminary Unexploded Ordnance (UXO) Risk Assessment

Dynasafe BACTEC’s Preliminary UXO Risk Assessments are Fast, Accurate and Effective. Accurate - Based on 19 key datasets, each UXO assessment analyses over 100 geospatial databases of UXO threats Fast - Dynasafe BACTEC’s instant preliminary UXO risk assessments saves project research time, creating time to focus on critical project elements. Dynasafe BACTEC’s effective reporting reduces interpretation and evaluation time.

In most cases no further risk assessment or UXO mitigation is required. If a detailed risk assessment is required then the cost of the preliminary assessment is deducted from the cost of the Dynasafe BACTEC detailed assessment.

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

The ability to access an immediate preliminary UXO risk assessment that could be relied upon enabled our project to continue on schedule.

On-line instant access; historical research now in the 21st Century!

Safe, Cost Effective & Accurate Results

Dynasafe BACTEC’s research team continues to lead the way in the innovation and application of historical UXO desk top research to ensure that the site specific assessment of potential UXO (Unexploded Ordnance) contamination is accurate, reliable and effective.

Any risk posed by potential UXO / UXB (Unexploded Bombs) will be assessed in conjunction with the intended future use and development of the project site. If an elevated risk of encountering UXO is identified,  risk mitigation measures will be recommended to reduce the threat of UXO to the ALARP, (As Low As Reasonably Practicable) principle. The understanding of the project works, proposed construction techniques, ground conditions and the UXO risk mitigation technologies available is vital to ensure that the correct level of UXO risk mitigation is recommended.

All detailed UXO risk assessments and risk mitigation strategies are developed by experienced, qualified researchers, senior EOD engineers, specialists and construction engineers. Detailed UXO risk assessments are no longer the preserve of office based experience and application only.

UXO Risk Mapping

Dynasafe BACTEC leads the way with 2D and 3D UXO risk mapping applications. With detailed in-depth research, endeavour and practical experience many project sites, (particularly in central London and ex-military sites) can be zoned into areas of differing risk, not only from the possible location of (Unexploded Ordnance) UXO but also in conjunction with the proposed construction / remediation activity and future use of the project site. This ensures that any follow on UXB / UXO risk mitigation work is proportional to the risk posed by UXO which is safe, reliable and professional.

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

I could not believe that parts of my project site in central London would be assessed as low risk from German WWII bombing. The detailed assessment has enabled the project to save costs and time by not conducting unnecessary UXO surveys on site whilst also staying safe.

Dynasafe BACTEC confirmed that just because my project site is on ex-military land it does not mean that there is an immediate risk from UXO.

UXO Risk Mitigation Strategy

Dynasafe BACTEC’s expert project teams provide comprehensive risk mitigation strategies that would be implemented at the relevant stages of the project and are developed in conjunction with the client and third party stakeholders. The strategy will cover all aspects of the project where UXO (Unexploded Ordnance) could potentially pose a risk and could include a range of measures; safety briefings, physical survey, investigation and disposal. All UXO risk mitigation strategies are designed to reduce the risk in line with the ALARP, (as low as reasonably practicable) principle.

All UXB / UXO risk mitigation strategies are developed by qualified, experienced researchers, senior EOD engineers and specialists and construction engineers where site visits and on site UXO risk assessments are invaluable.

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

When I requested a detailed risk mitigation strategy from UXO specialists only Dynasafe BACTEC conducted a site visit. It was no surprise that the strategy provided was specific to my project and not the typical table of options provided by other specialists.

A bespoke risk mitigation strategy that enabled a reduction in time and cost required to conduct the necessary mitigation services.

Peer Review Risk Assessments

Continual feedback from our clients confirms it is no longer acceptable to receive standard boiler plate UXO risk assessments and risk mitigation strategies which are limited in their depth of research and detail, providing limited value to the project. Dynasafe BACTEC’s research team and EOD engineers and specialists conduct peer reviews to review, correct, corroborate and enhance reports from other specialist UXO companies.

Common outcomes from a peer review are;

  • Missing data
    The assessment of UXO risk may not be based on all available data
  • Elevated Risk
    All the factors that influence the assessment of risk are not taken into account such as source of bomb damage and post war redevelopment
  • Incorrect Risk Zoning
    It is common that the “J Curve Effect” from aerial bombing is not taken into consideration when risk zoning the project site

j-curve effect

  • Incorrect Low Risk Rating
    The most concerning development within the industry is where risk indicators have not been taken accurately into account and UXO have been encountered on sites when a low risk assessment has been provided from a specialist UXO company. 

Dynasafe BACTEC follows clear, established and concise procedures and protocols when conducting detailed UXO risk assessments and risk mitigation strategies. Providing low risk assessments either through gaps in the assessment process or to appease the client does not provide any value to the project and can be dangerous.

Post WWII Redevelopment

Dynasafe BACTEC has a very straight forward philosophy “getting it right first time”

CASE STUDIES

Preliminary UXO Risk Assessment

Brief:

Provide preliminary risk assessments for 46 individual sites in the South East of England, prior to the refurbishment and installation of water mains.

Challenges:

The client required a large number of preliminary risk assessments within a very short timeframe. By using Dynasafe BACTEC‘s unique www.bombrisk.com Preliminary Risk Assessment service, which produces accurate site specific assessments instantly, the client was able to make quicker decisions regarding potential UXO risk, avoiding potentially costly delays to several individual projects.

Result:

Despite the fact that these sites are situated in the South East, where the majority of German bombs were dropped in WWII and had a high density of military activity, over half of the Preliminary Risk Assessments, resulted in Low Risk levels, indicating no further action. Of the remaining sites, where Detailed Risk Assessments were recommended and carried out, several of the detailed assessments again concluded Low Risk levels, with several more resulting in risk zoning (including low, medium and high risk zones). This resulted in reduction of 70% of our Client’s original budget for on-site UXO risk mitigation services.

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Detailed UXO Risk Assessment – Onshore

Brief:

Provide Detailed Risk Assessment of a large residential estate within a central London Borough, prior to its demolition and redevelopment.

Challenges:

During WWII the site was a diverse urban area, occupied by a variety of different types of buildings / structures (of both commercial and residential use), as well as differing sections of open ground (gardens, recreational space, brownfield). Furthermore, parts of the site sustained different degrees of bomb damage and the post-war developmental history was also complex.

Result:

Bringing all these factors together to plot the different UXO risk zones within a large area presented a challenge. However, even though the site occupied an area of very high WWII German bombing density, our Research Team justified approximately 70% of the site as Low Risk from UXO.

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Detailed UXO Risk Assessment – Offshore

Brief:

Provide a Detailed Risk Assessment for a 714km submarine cable route between Northumberland, England and Hylen, Norway.

Challenges:

For a project of this size and complexity, a vast array of both UK and Norway based resources / institutions had to be first identified then researched. A very large volume of accumulated data had to then be analysed and presented in a bespoke report format that made it easily digestible and understandable for the reader.

A further challenge presented itself at the UK connection, which comprised of four separate landfall options, each including a beach / back beach area that required its onshore risk assessment, forming a part of the entire report.

Result:

Despite the almost inexhaustible quantity of research data available in the public domain, Dynasafe BACTEC provided a concise, accurate and useful document within the timeframe given. Furthermore, our research team were able to divide the route into four risk levels, with over half of the total length designated as low risk.

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Dynasafe BACTEC has a very straight forward philosophy GETTING IT RIGHT FIRST TIME

UXO Surveys

Dynasafe BACTEC uses a wide range of specialist geophysical survey technologies, including intrusive surveys and non-intrusive surveys for land and marine UXO sites.The risk mitigation strategy for your project will identify the most appropriate and relevant UXO survey technique and technology that should be deployed and will depend upon the following key criteria;

  • Type of UXO (Unexploded Ordnance)
  • Possible depth of UXO/ UXB
  • Ground conditions
  • Scope of the proposed works
  • Future use of the project site

Using a wide range of specialist in-house geophysical survey technologies and techniques, Dynasafe BACTEC can provide a tailor made solution for land and marine UXO projects. Each survey solution is designed to detect the potential target UXO (Unexploded Ordnance) taking into consideration ground conditions and the depth of clearance required for the project site. On site QA/QC is conducted along with software analysis verification by our in-house geophysicists to ensure that the survey solution is fit for purpose.

All our UXO surveys; both non-intrusive surveys and intrusive surveys are conducted by Dynasafe BACTEC’s in-house resource, (plant, equipment, technology and personnel) without the need to rely on sub-contracted services or equipment.

 

 

 

 

Choosing Dynasafe BACTEC for our project made sense as all the specialist plant, equipment and technology are owned by Dynasafe BACTEC without the reliance on sub-contracted services

 

 

 

Non-Intrusive Survey

Dynasafe BACTEC deploys a variety of non-intrusive survey technology and systems to achieve the required level of detection dependent upon the type and likely depth of UXO (Unexploded Ordnance) contamination, ground conditions and the depth of clearance required. BACTEC employs magnetometry (Magnetometer Surveys) in both total field and gradiometer configurations, as well as Electro Magnetic Systems.

Dynasafe BACTEC’s unique AGS-1 System extends the boundaries of the detection for buried ferrous objects and explosive ordnance contamination using non-intrusive survey techniques.

This non-intrusive survey system may be configured for 1, 2, 4 or 8 sensors depending on the terrain and the area to be surveyed and may be deployed on a number of different platforms quickly and efficiently either on land or underwater.

The survey results are interpreted rapidly, usually within 24 hours of each survey day. A unique false-colour plan is produced along with a target list derived from 3D magnetic modelling technology which is processed, interpreted and assessed by our in-house specialists to determine if any targets are possible UXO and if follow up action is required.

Dynasafe BACTEC also offer Intrusive Surveys for UXO detection, visit our Intrusive Surveys page to find out more.

Towed Array Survey Systems - Non Intrusive Surveys
Towed Array Survey Systems

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

A no fuss survey completed on time and to budget with clear understandable results.

Intrusive Survey

Where an Unexploded Bomb (UXB) may have penetrated to a depth greater than the detection depth of a non-intrusive magnetometer survey, (typically deeper than 4 metres below ground level for a 50kg air dropped bomb) an Intrusive survey can be deployed either to clear borehole locations, individual pile locations or pile groups and where necessary for site area clearance.  Dynasafe BACTEC’s BXP detection system and software has been developed to rapidly and accurately detect and locate buried ferrous objects which could potentially be a UXB, to the maximum assessed bomb penetration depth on site.

Dynasafe BACTEC’s BXP system has the following features;

  • Flexible Application
    The system can be introduced into the ground from a wide variety of platforms and methods using hydraulically inserted probes or using staged drilling method (Geotechncal drilling) in difficult ground conditions.
  • Rapid and Cost Effective Data Capture
    The system employs a specially developed sensor and software, which is configured to survey a column of ground as it is vertically introduced. The system quickly and effectively records the vertical depth of a magnetic anomaly, its horizontal distance from the probe and its’ theoretical modelled mass.
  • Effective Data Interpretation
    The proprietary bespoke software is specifically configured for deep UXB detection. Whilst real time UXO clearance can be provided on site all data indicating a possible target is reviewed at Dynasafe BACTEC HQ by our in-house dedicated geophysicists’ team for detailed target interrogation and analysis.

If there is a requirement for both geotechnical survey information as well as UXB clearance, Dynasafe BACTEC can deploy its combined magnetometer and CPT Test (Cone Penetration Test), using a cone penetrometer to provide these two data sets as a single operation.

Cone Penetration Testing (CPT Test) determines sub-surface stratigraphy and characterises the materials present (potential UXO threat); it provides geotechnical parameters and data for direct geotechnical engineering and design.

Dynasafe BACTEC also offer non-intrusive surveys for UXO detection, visit our non-intrusive surveys page to find out more.

CPT Rig - Cone Petetration Test - CPT Test Rig
CPT Rig
Drilling Rig - Geotechnical Drilling for the detection of UXO /UXB
Drilling Rig

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

SAFE, RELIABLE and EFFECTIVE.

Underwater UXO Surveys

Conducting detailed surveys in the intertidal zone and underwater can be complex and very challenging. Dynasafe BACTEC meets these challenges head on with a range of equipment, technologies and specialist marine survey techniques that delivers fast, accurate and reliable survey data for review and analysis.

Providing a comprehensive range of marine survey technology and techniques including;

Multi-Sensor Survey Arrays

Whether in the intertidal zone, shallow water or water depths of up to 2000 metres deep, Dynasafe BACTEC will provide an integrated marine survey solution. The marine survey results can be interpreted rapidly, usually with 24 hours of each survey day. A unique false-colour plan is produced along with a target list derived from 3D magnetic modelling technology that is then processed, interpreted and assessed by our in-house geophysicist team to determine if any targets are possible Unexploded Ordnance (UXO) and if follow up action is required.

Top Image - Surveying Wing, Lower Left Image - 500 lb air dropped bomb, Lower Right Image - ROV

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

The quality of the data is very good (“the best that I have seen in the offshore wind industry”) – largely due to the number of magnetometers used and the relatively low altitude above seabed achieved.

CASE STUDIES

Intrusive Survey

Brief:

Dynasafe BACTEC Limited was contracted to provide UXO Risk Mitigation Services for infrastructure development works at a sewage treatment works.

Challenges:

The UXO risk assessment identified the risk from UXO to be airdropped bombs from WWII, with at least 172 recorded bomb strikes on the site. As the construction design was for extensive piling across the project site an intrusive UXB survey was required to provide the necessary clearance.

The UXB intrusive survey was conducted over 9 months with over 13,395 positions surveyed. Due to the changing ground conditions and in some instances restricted site access Dynasafe BACTEC deployed both the CPT and drilling methodologies for the UXB surveys with it’s own in-house equipment, technology and personnel. In order to maintain the client’s programme, the number of survey units on site varied from 1 up to 8 units on site at any one time co-ordinated by Dynasafe BACTEC’s dedicated on site project management team.

The survey data was initially assessed on site by the surveyors before being returned to head office for further processing and analysis using proprietary AGS software, the data was then subject to Quality Assurance checks with results confirmed within 24 hours. Of the 13,395 individual surveys 7 anomalies were detected that required additional surveys for target triangulation, target modelling and assessment, only one target required intrusive investigation by Dynasafe BACTEC’s specialist team. The result of this investigation was the discovery of a live UXB an SC 250kg German bomb from WWII successfully disposed of on-site.
After completion of the survey and disposal of the UXB full clearance certification was issued.

Result:

Client Comments

“Dynasafe BACTEC was able to schedule and deploy multiple resources in accordance with our demanding construction programme. The level of accuracy and reliability of the survey data is truly impressive with only one intrusive investigation which turned out to be a live UXB”

 

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Non-intrusive survey

Brief:

A former Royal Air Force station in the east of the UK covering approximately 100 hectares was being developed as a utility scale solar energy farm now generating 33 Megawatts of power. The site was assessed by a UXO specialist as being at high risk of UXO with the threat coming from numerous types of explosive ordnance ranging from, Land Service Ammunition (LSA), pipemines and German HE bombs.

Challenges:

The recommendation within the UXO threat assessment was for pro-active digital survey and investigation to be conducted ahead of the development. The client contacted Dynasafe BACTEC to enquire if there was an efficient methodology to conduct the non-intrusive survey in order to avoid any delays to the construction programme.

Following a site reconnaissance and review of the UXO risk, (within 24 hours of first contact), Dynasafe BACTEC deployed the bespoke non-intrusive digital magnetometer towed survey array within 7 days. The survey of 98.25 hectares was completed in 9 working days by our self-contained survey team covering over 10 hectares per day.

Rapid data interpretation and target classification enabled multiple target investigation teams and plant to be rapidly deployed to site, whilst the survey was still being conducted, to investigate targets identified form the survey that fell with the classification range of potential UXO.

The project was completed within 22 days from start to finish providing the client the clearance they required and ensuring that the construction programme was back on track.

Result:

Client Comments

“I was very pleased with the speed that Dynasafe BACTEC responded to our enquiry. Their rapid survey capability, technology, efficiency and the ability to deploy multiple target investigation teams enabled us to maintain our construction programme, safe from the threat of UXO”

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Dynasafe BACTEC has a very straight forward philosophy GETTING IT RIGHT FIRST TIME

UXO Investigation

Following a non-intrusive survey or intrusive survey buried targets may be identified that fall within the parameters of UXO (Unexploded Ordnance). Dynasafe BACTEC will provide a UXO investigation strategy based upon the following criteria;

  • Accurate Data Interpretation / Target Classification
  • Environmental Conditions
  • Avoidance, (particularly for deep buried UXO)
  • Risk Based Sample Investigation
  • UXO Clearance or Risk Reduced to ALARP

This criteria ensures that after completing the UXO survey and target investigation strategy the project site is made safe reducing the time taken on investigating non UXO targets and ensures that all UXO targets have been detected, investigated, identified and removed both safely and effectively.

Investigating targets that may be UXO is a specialist operation that should only be conducted by qualified, experienced explosive ordnance disposalEOD engineers and personnel with the correct plant and equipment. Over the past 25 years, Dynasafe BACTEC has investigated 1000’s of potential UXO targets from just below the surface to depths of up to 14 metres. On one site alone in the UK over 30,000 items of UXO, (including chemical related munitions) were investigated and removed with 8% still live and capable of functioning as designed.

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

Following the non-intrusive survey I was concerned that extensive intrusive target investigation would be required. The Dynasafe BACTEC target classification and investigation strategy made sense and the rapid deployment of Dynasafe BACTEC’s specialist equipment and personnel ensured that the investigation was completed safely and efficiently providing the clearance required without the need to investigate large amounts of scrap metal.

Data Interpretation / UXO Target Classification

Robust data interpretation technology,(developed over the past 25 years) together with accurate UXO target classification, experienced in-house geophysicists and comprehensive risk assessments/reviews ensures that any potential UXO (Unexploded Ordnance) will be identified from our intrusive surveys and/or non-intrusive surveys whilst also discounting many other ferrous targets, (that fall outside identified UXO parameters), geology or interference from other sources such as overhead power cables, fence lines, buried foundations etc…

Non-Intrusive Survey Results

The non-intrusive survey results can be interpreted rapidly usually, within 24 hours of each survey day. A unique false-colour plan is produced along with a target list derived from 3D magnetic modelling technology which is processed, interpreted and assessed by our in-house geophysicist team to determine if any targets are possible UXO (Unexploded Ordnance) and passed on to the in-house Specialist Explosive Ordnance DisposalEOD team for further evaluation.

Non-Intrusive Survey. An example of a false colour survey map detailing the possible UXO targets located

An example of a false colour survey map detailing the targets located

Non-Intrusive Survey - Bespoke 3D target modelling and UXO (Unexploded Ordnance) target evaluation software

Bespoke 3D target modelling and target evaluation software

Non-Intrusive Survey Results following UXO target investigation, a German WWII C50A Incendiary Bomb was found.

Following target investigation a German WWII C50A incendiary bomb.

WWII bombs on my project site is not what I expected. Out of over 100 targets identified from the survey only 15 were investigated and two were WWII bombs, impressive!

Intrusive Survey

Deep target investigation following an intrusive survey can be expensive and time consuming. Dynasafe BACTEC’s modelling software ensures that the possibility of detecting false targets is reduced to the minimum amount as possible. Real time clearance can be provided on-site whilst detailed target interrogation and analysis is conducted at Dynasafe BACTEC HQ with results delivered usually within 24 hours.

During the intrusive survey, a progress clearance map is provided to ensure that the construction programme can be completed.

Where an Unexploded Bomb (UXB) may have been detected, the client is then informed immediately in order that further target assessment can be conducted on site by additional UXO surveys, (target triangulation). This allows for additional readings to be taken of the target to allow for very accurate target modelling, to further reduce the possibility of a false alarm.

Intrusive Survey - An example of a UXO clearance map

An example of a clearance maps

Intrusuve Survey - Data traces of a suspected UXB at 4 to 5 metres bgl

Data traces of a suspect UXB
at 4-5 metre bgl

Intrusive Survey - Following UXO investigation, a German WWII 250kg bomb (UXO) was discovered

Following investigation the discovery of a
German WWII 250kg bomb

After over 6000 intrusive surveys only one target was identified for further action. On investigation it happened to be a live German WWII 250kg bomb!

Safe, Cost Effective & Accurate Results

Using the right type of plant and equipment is essential when conducting target investigation of suspect UXO (Unexploded Ordnance). Dynasafe BACTEC has in-house specialist plant and equipment that can be deployed to a project site that can include;

  • Hand-held Locators and Detectors
  • Armoured Excavator
  • Blast Protection
  • UXB / UXO Storage Units
  • Body Armour
  • Specialist First Aid Kits
  • Chemical Warfare Agent Monitoring Equipment
  • Chemical Decontamination Unit
  • Mobile X-ray System

For deeper excavations Dynasafe BACTEC’s Explosive Ordnance DisposalEOD engineers design and specify specialist ground work supports and can source the necessary equipment to provide a complete solution for deeper target investigation for suspect UXO.

Dynasafe BACTEC's specialist plant and equipment for UXO detection and extraction - Top Left Image – Armoured Excavator, Top Right Image – Operators in Chemical Munitions PPE, Lower Image – Mobile X-Ray System, Lower left first inset image - X-ray of a Bomb, Lower right second inset image - Digital Chemical Monitor
Top Left Image – Armoured Excavator, Top Right Image – Operators in Chemical Munitions PPE
Lower Image – Mobile X-Ray System, Lower left first inset image – X-ray of a Bomb
Lower right second inset image – Digital Chemical Monitor

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

Dynasafe BACTEC gave me the confidence that the investigation of suspect UXO would be done safely and effectively with the correct equipment and experienced personnel.

UXO Risk Mitigation

Reduce UXO Risk

The primary aim of pro-active risk mitigation such as survey and investigation/removal of UXO (Unexploded Ordnance) from a project site is to reduce the risk to As Low As Reasonably Practicable (ALARP). Dependent upon the nature, location and level of risk posed from UXO / UXB on the project site, this may entail either full bomb clearance or risk reduction to an acceptable level.

Dynasafe BACTEC work in partnership with our clients to ensure that they fully understand the UXO risk mitigation process, the risk reduction options that are available and the likely outcomes for each option. In this way we ensure that following the implementation and completion of the project specific UXO risk mitigation strategy the project can continue free from UXO that may present a hazard to the project.

Safely removing the risk of a WWII bomb recovered from a project on the A2 in South England
Safely removing the risk of a UXO – Unexploded WWII bomb recovered from a project on the A2 in South England

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

CASE STUDIES

Former MoD Site, UK

Brief:

A new housing development was proposed on the site of a former Central Armaments Depot in the UK. Dynasafe BACTEC was employed as the principal site contractor to develop and implement a comprehensive UXO risk mitigation strategy for the project which also included ecological surveys, demolition of derelict buildings and ground remediation.

Challenges:

The site originally opened in 1918 as Britain’s only Central Armaments Depot. Post WWI, various types of munitions, including grenades, mortar bombs, artillery shells and containers filled with chemical agents (Mustard Gas, Tear Gas and Phosgene), were brought to the site from WWI battle areas for disposal. The site was also used later as a proving ground for experimental munitions.

The site was assessed as high risk from UXO for both conventional and chemical munitions.

The UXO risk mitigation strategy included;

• EOD Supervision during building demolition
• Remediation of a UXO burning pit
• Multi sensor / technology non-intrusive survey
• Target assessment and investigation
• UXO assessment (X-ray) and disposal on site
• Disposal of UXO on site
• Removal of UXO from site for subsequent disposal
• Full clearance to a depth of 3 metres

Result:

A total of over 30,000 items of ordnance were recovered (of which over 8% were live) including eight items of chemical ordnance. The land was then released for development.

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Dynasafe BACTEC has a very straight forward philosophy GETTING IT RIGHT FIRST TIME

EOD – Explosive Ordnance Disposal

Dynasafe BACTEC offers the complete in-house solution for (Unexploded Ordnance) UXO disposal on and offshore with the required licenses, equipment, personnel and established procedures to deal with any UXO safely, efficiently and decisively.

Subject to local agency agreements and the type of Unexploded Ordnance (UXO) discovered the process and procedures for dealing with UXO may include;

  • Hand over to the authorities – Typically larger items of UXO such as air dropped bombs.
  • Storage on site for subsequent UXO disposal / removal – Inert UXO and UXO related scrap.
  • Removal from site by the “Bombtruck” for bomb disposal off-site – UXO that is safe to move and with a NEQ, (Nett Explosive Quantity) of 8kg or less.
  • EOD – Explosive Ordnance Disposal on site by explosive means – Live unsafe to move UXO / UXB.

Whichever scenario best suits your UXO disposal requirement, Dynasafe BACTEC’s experienced teams ensure that each UXO or bomb disposal operation is conducted with the minimum amount of disruption to the project. Over the past 8 years Dynasafe BACTEC has safely cleared and disposed of over 40,000 items of Unexploded Ordnance (UXO) in the UK.

A collection of Unexploded Ordnance detected and cleared by UK EOD Company Dynasafe BACTEC Ltd.
Recovered items of Unexploded Ordnance

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

From the very start of the project with the desk top risk assessment, through to the survey, investigation and disposal we could rely on Dynasafe BACTEC to provide the right solution, equipment and personnel to deal with our UXO problem. A job well done!

UXO Removal and Disposal

Explosive Ordnance Disposal (EOD)

Under current UK legislation UXO arisings, (legacy UXO not in its original packaging), cannot be transported on the public highway to a disposal facility without special dispensation from the HSE for each occurrence, this takes time.

Dynasafe BACTEC has developed a holistic UXO (Unexploded Ordnance) transportation and disposal solution which is approved for the safe transportation of UXO that are live but safe to move with an 8kg NEQ, (nett explosive quantity) or less. Using Dynasafe BACTEC’s bespoke Bombtruck and technology, the Unexploded Bomb / Unexploded Ordnance can be transported on the public highway immediately for disposal at a licensed EOD (Explosive Ordnance Disposal) facility without the need for individual approvals.

  • Gas tight explosive containment chamber
    This chamber is used for the storage of the UXO during transit. In the unlikely event of a detonation all energy, fragmentation and gases will be contained within the chamber.
  • Mobility
    The system is truck mounted with integrated UXO safety systems and procedures and is approved for transportation of UXO on the public highway.
  • UXO Disposal
    Each item of UXO will be disposed of at a licensed EOD facility with a full audit trail.
Dynasafe BACTEC Bombtruck - Providing safe Transportation of UXO to licensed EOD facilities for safe bomb disposal
Dynasafe BACTEC Bombtruck

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

The Dynasafe BACTEC’s bombtruck meant that the UXO discovered could be removed safely and disposed of offsite without the need for onsite licensing, storage and disposal. This meant that the UXO issue was dealt with in a low key manner as part of everyday operations.

Onsite Explosive Ordnance Disposal (EOD)

UXO Disposal Services

In some cases, the onsite disposal of UXO (Unexploded Ordnance) by explosive means is unavoidable. Dynasafe BACTEC provides the complete project management service through to disposal operations for the on-site safe disposal of UXO / UXB (Unexploded Bombs) by explosive means. From explosive design engineering, licensing, liaisons with the relevant authorities and stakeholders as well as the supply of explosives, materials, specialist equipment and personnel to conduct the disposal operations; Dynasafe BACTEC provides the fully integrated solution.

Explosive Disposal of UXO by Dynasafe BACTEC on a UK Construction site
Explosive Disposal of UXO by Dynasafe BACTEC on a UK Construction site

Dynasafe BACTEC has a very straight forward philosophy
GETTING IT RIGHT FIRST TIME

SAFE, RELIABLE and EFFECTIVE.

CASE STUDIES

Off Site UXO Disposal

Brief:

Dynasafe BACTEC Limited was employed to develop and implement a comprehensive UXO risk mitigation strategy for a development project on a former RAF site in Scotland. The site had been an operational military aerodrome from early 1913, serving initially as a fighter base. During WWII it was also determined that the facility faced the added risk of an amphibious assault and defences were constructed in order to address this risk home guard and land based military units were also co-located at the site during this period. The airfield was also subjected to a number of German air raids during 1940 and 1941.

Challenges:

The project site had varied and challenging ground conditions including demolished buildings, burial pits, stock piles of material and underground structures, which all had to be taken into consideration when developing the risk mitigation strategy. The risk mitigation strategy included;

• A detailed risk assessment and risk map.
• Non-Intrusive Survey using multiple survey techniques and technology.
• Target classification and investigation
• Remediation of building rubble areas
• Disposal of UXO
• Clearance to ALARP

During the operation a total of 9,614 items of ordnance were recovered from site, 7909 of which were determined to be live (containing viable explosive material). A further 6 items of UXO were categorised as live but unsafe to move. Following discussions with the client, third party stakeholders and authorities it was agreed that the explosive disposal on site of such a large number of live UXO by explosive means was not practical or desirable. Deploying Dynasafe BACTEC’s bomb truck enabled the 7909 items of UXO to be immediately transported from site safely to a licensed disposal facility and disposed of in a controlled environmentally effective manner. The remaining 6 items of UXO were destroyed by explosive means on site due to safety.

Result:

Client Comments

“Recovering such a large amount of live UXO was a concern to the project team. The bomb truck ensured that the vast majority of the live UXO could be safely removed from site and disposed of elsewhere, safely efficiently and cost effectively.”

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