Article Laboratories

Geophysics and the Search for Homer’s Ithaca

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An extract from the paper presented at SAGEEP 2009
Greg Hodges, Fugro Airborne Surveys, Mississauga, CA
David Kilcoyne, Fugro-Aperio, Wallingford, U.K.
Rod Eddies, Fugro-Aperio, Wallingford, U.K.
John R. Underhill, University of Edinburgh, Scotland, UK”

Ithaki, Cephalonia and PalikiIdentifying the location of the island of Ithaca, legendary home of Odysseus, has been a problem for historians for centuries.  The modern island of Ithaki, in the Ionian Sea, does not match the description in Homer’s epic poem.  It is the hypothesis of Robert Bittlestone, working with geologist John Underhill and classicist James Diggle, that the westernmost part of Cephalonia, the Paliki peninsula, was ancient Ithaca.  Their book, Odysseus Unbound: The Search for Homer’s Ithaca, gives a detailed description of the evidence supporting the hypothesis, and the story of its development.  There is one major sticking point:  Paliki is joined to the larger part of the island of Cephalonia, by an isthmus as much as 180m above sea-level.    Figure 1 shows a Landsat 7 image of the islands today, and the Thinia valley fills the isthmus between Paliki and the rest of Cephalonia.  The new hypothesis requires a channel through the isthmus, perhaps in the location shown in Figure 2.

 

Thinia valley with possible channel route.Ground, airborne and marine geophysical surveys are being used to study the potential for a channel under an area now largely covered by colluvium from the adjacent mountains.  Fugro’s airborne EM and magnetic data provide a regional overview of ground conductivity (Figure 3).  Ground EM, resistivity, gravity and refraction seismic surveys obtained by Fugro Aperio are being used to study the proposed channel zone in detail to determine the depth of fill and contours of the buried bedrock surface.  Marine seismic has been employed offshore by Fugro Oceansismica to analyze the drainage patterns at the low water levels of 3000 years ago.  High resolution airborne LIDAR mapping from Fugro’s Fli-Map provides detailed surficial information. All of these data sets are brought together to build a comprehensive geological model of the proposed channel area and to provide the ultimate test of the classical enigma.

 

Airborne Apparent Resistivity map (40kHz)  on topography

 

(The full paper was presented at the EAGE Near Surface meeting in Dublin – 26th to28th September 2009, for further information contact Steve Poulter, Fugro Engineering Services Ltd 0870 4021423).

Article Safety

First Aid in the Workplace – Changes to Regulations

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The Health and Safety Executive (HSE), carried out an evaluation of first aid in the workplace and found that ‘although first aid awareness and penetration in workplaces was good, compliance was found to be more “in spirit” rather than the letter of the regulations and this exposed some important deficiencies in the format and content of guidance and in the proportionality of the current regulatory requirements for lower risk employees’.
The changes have been developed in consultation with employers and training providers and it is hoped that the new format will make it easier for employers to comply with the regulations.

The initial four day First Aid at Work (FAW) course will be shortened to three days and there will be a new qualification of Emergency First Aider in the Workplace (EFAW) that will require a one day training course. The FAW requalification remains unchanged at two days.
The HSE will also strongly recommend that FAW and EFAW students attend an annual three hour refresher course to prevent ‘skills fade’.
Both the FAW and EFAW courses will be approved by the HSE and must be taught by HSE approved first aid training providers.
FAW certificates will remain valid until their expiry date even if this is after October 1 2009.

For more information, visit www.hse.gov.uk/firstaid/index.htm

Article Data Management Loss Prevention

Successful Tender

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Question- Can a successful tenderer for a publicly procured project negotiate the terms of the contract post acceptance, but prior to contract award, in order to amend an obligation to indemnify the public body against all losses due to any breach of the appointment or failure to fulfil the obligations due under it, to an obligation to indemnify to the extent of any monies recoverable under the consultant’s Professional Indemnity (PI) insurance.

The public authority is arguing that (a) this would potentially be unfair to other tenderers and/or third parties and (b) such a limitation would be contrary to public policy in a public works consultancy agreement.  The consultant believed that by providing evidence of their insurance at tender stage, that was sufficient to limit their liability to the amount of the level of insurance (LOI).

Answer-

  1. A public procurement body may fall foul of the public procurement regulatory regime if the contract which is ultimately awarded does not accord with the particulars of the contract which was described in the contract notice published in OJEU. Not every change will be significant. The test which is usually applied is whether the proposed changes are so significant that the altered contract, if re-advertised, would attract responses from tenderers other than those initially admitted or would have allowed for the acceptance of a tender other than the one initially accepted. This may be the case where one or more important features of the contract have been changed (e.g. as to value, scope, timing or financing arrangements).  I had not seen the contract notice, so I was unable to advise definitively but I provided some initial views on this particular case.
  2. A public procurement body may fall foul of the public procurement regulatory regime if the public procurement authority awarded the contract on award criteria which are different from those which it has stated will apply to tenders.  I discussed that in the context of this case.
  3. The public body was correct in stating that the consultant’s confirmation of the level of its insurance cover (and in particular the limit of indemnity on its PI cover) does not amount to offering to provide the services subject to the consultant’s liability being limited to the amount of its PI cover. The tender criteria sought details of the PI insurance in respect of the criteria relating to the commercial viability/strengths of the interested tenderers.  Unless a consultant expressly states that its tender is subject to the insurance recoverable being the limit of any liability which the consultant may have for breach of the contract , then the mere provision of the insurance details in the tender is unlikely to have that effect.
  4. The proposed limitation of liability provisions are not contrary to public policy.  It is well established that parties are permitted to agree to limit their liability.  For example, clause 82.1 of the NEC3 Professional Services Contract provides for a cap on the consultant’s liability. The consultant’s total liability to the employer for all matters arising under or in connection with the contract, other than excluded matters, is limited to the amount stated in the Contract Data & applies in contract, tort or delict and otherwise to the extent allowed under the law of contract.  This contract is part of the NEC3 suite of contracts which have received OGC approval and which are approved as satisfying the “Achieving Excellence in Construction” principles.
Article Data Management Laboratories

Why AGS4?

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The AGS data format is being upgraded to version 4, this note explains the thinking behind the changes, gives the reasons for the changes and develops the potential advantages which this offers for the future.

A beta version of AGS4 will be available for public comment before the end of the year and comments will be welcome before final publication.

The AGS data transfer format consists of 3 parts, the data dictionary, the data structure and the transfer format itself which allows the computers to read and write the files. Each of these has been updated.

The data dictionary contains the list of data items which can be transferred.  This has been extended to include all the items required by the new Euro Codes and associated British Standards, the information necessary for accreditation of test results by external bodies and the typical information included in a Quality Assurance scheme.

The organisation of the laboratory test results have been restructured to provide separate groups for each test, using paired tables where appropriate.  A separate table has been introduced for the results of geotechnical chemical testing for the aggressivity of the ground to concrete in accordance with BRE Special Digest 1.

Rock testing has been divided into aggregate and geotechnical tests.

By working in close association with the geoenvironmentalists a new group, ERES, has been added for the test results for environmental samples.

Within the data dictionary an additional key field has been added to the sample table to be known as SAMP_SID, (sample identifier) which will enable the use of a single identifier for samples to be used where this is appropriate. This is particularly relevant for geoenvironmental studies, particularly when taking monitoring samples, and also facilitates the use of new technology in the form of ‘bar coded’ samples.

The rules for the writing of the transfer file  have been simplified with the removal of the 256 character restriction which has deleted the need for the <CONT> line, a throw back to the days of 8bit computers.   This has permitted the addition of line headers which simplify the format even further. The  CSV format has been retained rather than move to XML as this is being investigated by others and taking much longer than expected. After four years of study there seems to be no commercial advantages to changing to XML at this time for the UK geotechnical industry.

Article Business Practice Data Management Loss Prevention

EN 1990 Alteration

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EN 1990 Altered to Avoid UK Liability Problems

The head code, EN 1990, has been changed to make sure that civil and structural engineers avoid potentially uninsurable ‘fitness for purpose’ liabilities when using Eurocodes in the UK.

One of the basic requirements of EN 1990, as set out in clause 2.1 (1)P, was that a structure had to ‘remain fit for the use for which it is required’. This has now been altered to, ‘meet the specified serviceability requirements for a structural element’.

The changes have been made as the original version suggested a fitness-for-purpose obligation that would not be covered by professional indemnity insurance. The trouble arises because ‘fit for the use for which it is required’ has a legal meaning in Britain which is does not have in mainland Europe.

BSI is planning to publish a corrigendum to BS EN 1990 shortly which will be free to download from the BSI Eurocodes website.( http://www.bsi-global.com/en/Standards-and-Publications/Industry-Sectors/Eurocodes-a/Eurocodes_Corrigenda/ )

Further information can be found on this article at www.eurocodes.co.uk

Article Contaminated Land Laboratories

Weighing up the Risk

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Ecological Risk Assessment (ERA)

A new framework for assessing risks to ecological systems from contaminants in soils was published by the Environment Agency in October 2008, superseding the draft methodology from 2004. The new methodology is designed to establish whether pollutant linkages are likely to exist between soil contamination and designated ecological receptors, and to gather information for making decisions on whether harm to receptors is occurring or could occur in the future.

The ERA framework fits into the established structure of the Environmental Protection Act 1990 (Part 2A Contaminated Land Regulations) for assessing risks from contaminated soil and is now a standard part of contaminated land assessments where ecological receptors are identified.

As well as the contaminated land regime, the guidance is relevant to planning and pollution control, habitats and conservation regimes, and the Environmental Damage Regulations. ERA will be applicable either for assessing risks during a due diligence process or for under-writing environmental insurance. It is also appropriate for assessments relating to environmental permit applications or for justifying an appeal against an Environmental Damage Notice.

The framework follows a three-tiered process:

  1. Screening: compares chemical data to UK published soil screening values (SSVs) or with published data from other countries;
  2. Survey: the use of ecological surveys and bioassays to gather evidence of harm to receptors;
  3. Assessment: the establishment of a connection between the established harm to the species or habitat and the soil contamination.
Soil Screening Values (SSVs) have been published for twelve compounds. The assessor can use the published values or derive a “predicted environmental concentration” specific to the site, using a simple “decision tool” that is available on the website.

SSVs are based on a “predicted no effect concentration” to an ecological receptor and are, therefore, extremely conservative. Published values are lower than equivalent guideline values for human health. Exceeding SSV triggers further assessment and is not an automatic requirement for remediation.

 

At PBA, we have already updated our existing assessment procedures to take account of the new framework and will continue to provide a full range of contamination and ecological services to enable effective management of ecological risks from soil contamination.

Jenny Allen (Environment)
jallen@peterbrett.com

Catherine Copping (Geo)
ccopping@peterbrett.com

Article Contaminated Land Safety

Understanding Bandings

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This article has been superseded by Safety Guidance – Classification of Potentially Contaminated Sites for Intrusive Investigation Activities which was published in March 2024.

It’s a red site. So what?

It was the 15th century Swiss medical pioneer Paracelsus, who noted in his journals: “all substances are poisons; there is none which is not a poison. The right dose differentiates a poison.” Although he made this statement almost 500 years ago, it is now known and proven to be correct with substances known to be essential for human existence, such as salt, defined as toxic when administered in sufficient quantities. For this reason the classification used by the British Drilling Association (BDA) Guidance for Safe Intrusive Activities on Contaminated or Potentially Contaminated Land and part four of the Site Investigation Steering Group (SISG), where sites are classified into green, amber or red sites, must be fully understood and not applied casually. Failure to fully appreciate the relationship between quantity and substance classification could be as dangerous as doing nothing or impose expensive non essential protection measures.

The BDA guidance classifies red sites as the most hazardous, attributing this classification to sites where there are: ‘Substances that could subject persons to risk of death, injury or impairment of health. Examples would be any substances that are corrosive, acidic, carcinogenic, cause skin irritation or respiratory problems, affect the nervous system, affect the organs, etc.’ Unfortunately this classification takes no account of the quantities present which are critical to determining the risk category as even uncontaminated soils and dusts, if present in the correct quantities and form, could act as a skin irritant or be harmful to the respiratory system. It would be a rare site investigation which did not include these hazards and on this basis, all sites would be classed as red.

In the BDA guidance, reference is made to the need for a risk assessment and this is the key to correctly determining the nature and category of the site. The green, amber, red categorisation system provides a simple warning and flagging system but where the presence of hazards is known or suspected, an assessment of both the nature and the quantity of the substances is required and this poses a problem for conducting work on contaminated land. In the majority of cases the purpose of conducting a site investigation is to determine the presence and quantity of contaminants for human health risk assessments. Until such time as this is done it is impossible to produce a definitive risk assessment and as such some assumptions need to be made.

To make an assessment there needs to be an understanding of the site and surrounding areas. A desk study should be able to identify the history of the site, in particular the industrial uses to which it has been put. This is the first stage but by no means the end of the process as not all uses may have been logged or recorded and they may not reflect the current use. Nothing substitutes a visit to site to examine the visible evidence but commercially, particularly on small sites, this is not always possible so any evidence such as photographs, discussions with clients etc. will help to build the picture.

Once the history and past uses of the site has been identified, an indication of the potential contaminants can be gathered but the available sources of guidance do little to clarify the situation. There are a number of publications used commonly to determine the presence of substances for the purposes of human health risk assessment, with the Environment Agency publication CLR8 – ‘Potential Contaminants for the Assessment of Land’ being recognised as the closest thing to definitive but the purpose for which it was developed does not fully suit our needs in term of occupational safety and health.

CLR8 is intended as an aid to determining the substances to be tested in a contamination study for human health but is not specific enough to assist completely in determining the requirements for the successful management of exposure in the course of site work or activities. CLR8 suggests everything is present in some quantity on nearly all sites but provides little indication of possible concentrations, the form of the substance or the exact location on the site. As an example, CLR8 identifies the presence of ‘oil / fuel hydrocarbons’ at airports, which although suggestive of contaminants which will certainly exist at some points on the site provides little guidance for occupational safety risk assessment. Hydrocarbons used for fuel vary from heavy oils such as diesel and more volatile substances such as pentane and if the whole site is treated as containing such substances, all area would be classified as ‘red’ under the BDA guidance as it is likely these hydrocarbons could contain benzene (a carcinogen), pentane (produces narcosis in higher volumes) and possible lead (causes damage to the peripheral nervous system).

A study undertaken by the author of this article, cross referenced all the potential contaminants present on sites as indicated by CLR8 with the risk phrases attributed to the compounds, suggested every site identified should be rated as the highest possible risk, if the categorisation of sites is dependant on the presence of substances alone, as suggested by the BDA guidance, all geotechnical sites would be classed as ‘red’ which is clearly unfeasible.

Article Loss Prevention

Payment and Protection

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Tags: legal payment

Introduction

In the present economic climate every business is feeling the pressure and it has never been more important to take all available steps to ensure you are paid for the services you provide. This article attempts to provide some guidance to assist with recovering consultants’ fees. Firstly it outlines some pre-emptive steps which can be taken by consultants to safeguard their position should they ever have to launch a fee claim. The second half then highlights some of the options available for recovering those fees.1

Section A: Establishing the right to payment

There are two hurdles you must overcome for a successful fee recovery:

1.         Establish that your client has a legal obligation to pay you;
2.         Satisfy both the procedural and legal requirements for a recovery of your fees.

1.         Establishing a legal obligation to pay

Firstly, make sure you identify who your client actually is. This is an obvious but crucial point. Consultants are often engaged through an intermediary or by one member of a group of companies, which can often cause problems later. To avoid this, always ensure you know who your true client is and, where possible, be engaged by a company with assets (rather than a shell or off-shore entity). If you have concerns about your true client’s ability to pay, then consider requesting third party security or advance payments. In certain situations it is possible to recover your fees from a party acting as the agent of the client, but ultimately fee recovery is so much easier if you have established who your client is before you undertake the work.

Secondly, the importance of agreeing and recording all the terms of your appointment in writing cannot be overstated. Subject to statutory intervention, parties are generally free to negotiate and agree whatever payment terms they want. However you should aim to make the terms as clear and unambiguous as possible. It is also important, especially when working for a lump sum fee, to define in writing the scope of your services and the value, scope and anticipated duration of the project. Ideally the appointment should contain mechanisms for varying the lump sum when these matters change. At the very least make sure you record the basis on which the fee is agreed. It is particularly important to ensure that all information or statements are recorded in the appointment, as the presence of an ‘entire agreement clause’ may well preclude you from relying on anything not specifically referred to in the document. Finally, the written appointment should also provide an entitlement to payment for additional services.

In the absence of a formal written appointment, keeping accurate written records is of paramount importance. To this end you should ensure oral agreements are confirmed in writing (usually by sending a letter to the client as soon as possible after discussions). In addition, even where there is no express agreement for payment, there is a rebuttable presumption that services provided by a professional will be paid for at a reasonable rate. However, again, fee recovery is so much easier if payment terms are clearly set out in writing before you undertake the work.

2.         Satisfying the procedural and legal requirements

When it comes to preparing a fee claim you must relate all sums claimed under the appointment back to the relevant terms to show that the requirements of the appointment have been complied with. The key to this is good housekeeping. Make sure you keep written records which:

  • confirm the instructions to proceed;
  • relate invoices back to the appointment/payment schedules;
  • confirm any agreed changes to billing arrangements and reasons for them;
  • particularly where the agreement is informal or under negotiation, record work done and time invested in order to show that the fee claimed is reasonable. Even when working under a lump sum or percentage fee, such records will be invaluable if a dispute arises.

 

Good housekeeping is equally crucial when undertaking additional services. Firstly, check the requirements of your appointment in relation to additional services. In any event, you should obtain prior written confirmation from the client that you are instructed to proceed with the additional services, their scope and the agreed fee/method of calculation. In addition, obtain written confirmation that they are additional services under your existing appointment, to avoid creating a separate contract. This will assist you if you later decide to adjudicate for any outstanding fees.

When claiming fees it is necessary to show that the work has been done and the contractual stage for payment has been reached. The following quote from a judge in a fee claim case illustrates this point:

  “A sum which was not due under the contract could not be turned  into a sum that was due merely by invoicing the employer and  stipulating a date by which the invoiced sum should be paid”.2

Section B: Options for enforcing the right to payment

So, you have set up your appointment correctly and provided the services in accordance with the appointment. However the date for payment has passed and your client has not paid. What can you do?

1.         Legal position

Most fee claims are claims for payment of monies due under a contract. Your client has promised payment in return for you providing services. Therefore once the services have been duly performed (and the contractual final date for payment has passed), you have a cause of action in debt for payment. To recover your fees you must prove that the debt is due and payable, however you do not have to prove any actual loss and also the rules for recovery of damages (e.g. as to remoteness, mitigation and penalties) do not apply. However you should of course be prepared for any counter arguments the client may put forward, whether they be abatement, set off, cross claim or counterclaim.

If the debt claim arises out of a simple contract you have six years to bring a claim from when the cause of action accrued, whilst if the contract is a deed the period is 12 years. In addition it is worth remembering that you can usually claim interest on the amount outstanding.

2.         Options

Firstly, there is of course the traditional option of commencing proceedings through the courts. Alternatively there is the fashionable option of attempting ADR (Alternative Dispute Resolution). Where applicable and appropriate, you could negotiate, mediate, arbitrate or adjudicate. However in addition to these now well known options there are a range of other, perhaps less well known weapons in the fee recovery armoury.

Solicitor’s letter of demand

Instructing your solicitor to send a formal letter demanding payment frequently prompts the client to pay. Often the involvement of solicitors also assists in disposing of unmeritorious claims and defences.

In addition, a well drafted solicitor’s letter also has the benefit of kick starting the Pre-Action Protocol for Construction & Engineering Disputes, which must be complied with anyway before you commence court proceedings.

Statutory Demand

A statutory demand is usually used as part of the insolvency process, as the failure to comply with it provides the court with proof that a company is insolvent. However it is also a powerful weapon in the fee recovery armoury.

A statutory demand requires the debtor to pay the outstanding amount within a specified period, which is clearly stated in bold on the front of the demand. The advantage is that a debtor knows that failure to comply can be relied upon by a creditor when presenting a winding up petition against the debtor.

However a statutory demand should only be served where there is no dispute that the sum is due, there is no genuine argument to resist the demand and no prospect of the claim of set off being raised. If the debtor produces a credible argument of a genuine triable issue then it may be better to withdraw the demand rather than have it set aside with a potential adverse costs order.

Exercising a lien over documents until payment is received

You are entitled to retain documents you have prepared as part of your services until the client has paid for them. However, the lien will be lost if you provide copies of the documents. Beware of terms in proposed appointments which would nullify your ability to exercise your lien.

Appropriation of payments

Where a client has paid money without appropriating it to a particular debt (i.e. paying a cheque but not in respect of a particular application for payment or invoice), you may appropriate the money to any debt you choose. However, the money must be due as a debt (e.g. it cannot be appropriated against an invoice which is not in law due).

Banking cheques received in settlement

Frequently, cheques for less than the full amount due are sent in ‘full and final’ settlement of fee claims.  Banking or retaining a cheque and not rejecting the offer immediately is viewed by the courts as strong evidence of acceptance of the offer. If you accept the cheque as part payment only, the safest course is to hold the cheque and seek immediate confirmation from the payer that it can be banked on account, alternatively, return it.  A further, but more risky, option is to bank the cheque whilst immediately rejecting the offer, to demonstrate that it has not been banked in satisfaction of the claim.

Termination or suspension

If you are engaged in an ongoing project for a client, but they are refusing to pay you as your fees become due under the appointment, then the following two options may also be relevant:

Treating non-payment as a repudiatory breach of contract

In certain situations a breach of contract may entitle the innocent party to terminate the contract. However the breach must either be so fundamental that it deprives the innocent party of substantially the whole benefit that it was intended to obtain from the contract, or the parties have agreed (expressly or by implication) that the breach will entitle the innocent party to terminate.

Non payment may constitute such a breach and you may therefore be able to terminate the contract. However, this option comes with a health warning especially when dealing with failure to pay by instalments. Whether a failure to pay by instalments due under a contract is a sufficiently fundamental breach is a question of fact in each case. However there is case law indicating that the failure to pay three instalments was insufficient, where the client had not demonstrated an intention not to pay at all. In addition if the client can ultimately demonstrate that the instalments relied upon to treat the contract as at an end were not in fact due, then you will have  put yourself in breach by having terminated the contract.

Suspension of performance of the services

Subject to the Construction Act 19963 applying to the contract, s112(1) provides you with a right to suspend your services. The right can be exercised when a sum due under the appointment is not paid in full by the final date for payment and no effective withholding notice has been given. However the right cannot be exercised without first giving to your client at least 7 days’ notice of intention to suspend performance, stating the grounds on which it is intended to suspend performance. Furthermore the right to suspend ceases when your client makes payment in full of the amount due.

Suspension of performance can be a very effective threat. However, the risk in suspending is that if the client can demonstrate that the monies were not due as claimed, then you will be in breach for withholding your services.

Settlement

Finally, if you have agreed terms for settlement for your fee claim it is crucial to record the terms formally. This is of particular importance if it has been agreed that you will compromise your fee claim in exchange for the release of negligence claims which have been notified against you by the client. Do not leave your position exposed by not recording these terms in writing and allowing the client to send you a cheque which purports to be in settlement of the fee claim only. Should the client later pursue the negligence claim, you will have a much more difficult time proving the basis of the settlement if the only written evidence is that of payment of the fee claim.  A strategically prepared compromise agreement could obtain a wider release of claims than might be in dispute in the fee claim.

 

This article is for guidance only and should not be relied upon for legal advice. In any particular case specific legal advice should be sought.


1. This article is based on talks given on 18.11.2008 by Guy Lane, Robert Stevenson & Peter Stockill of Berrymans Lace Mawer solicitors.

2. HHJ Thornton QC in CWF Architects v Cowlin Construction Ltd [2006] EWHC 6 (TCC) 35

3. Full title of the Act is the Housing Grants Construction & Regeneration Act 1996 (HGCRA).

Article Laboratories

Water Testing Cost Amendments

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DEFRA’s Water Classification Directions to the Environment Agency

Could water testing costs (either as part of due diligence work or operationally in relation to discharge consents) be set to rise in the future?  Darren Wilcox of Peter Brett Associates LLP ponders this and other questions raised as a result of the draft Directions.

In October 2008, DEFRA issued a draft “Directions to the Environment Agency on classification of water bodies” for consultation as part of its duties under the Water Framework Directive (WFD). PBA has reviewed the draft and contributed to the consultation process through a direct response to DEFRA.

Surface Water Classification
We note that the proposed new requirements for classifying surface waters are significantly more complex than the existing Environment Agency General Quality Assessment (GQA) scheme for rivers and canals.

With the GQA scheme, analytical costs for determining the classification of a river sample are typically less than £20. To classify the same river sample using the proposed method in the new draft Directions could cost in excess of ten times this amount.

The Directions are also not clear on how many exceedances of the 33 environmental standards would be required in order to classify an surface water body as failing to achieve good chemical status.

Groundwater Classification
To classify groundwaters, DEFRA has produced different assessment standards for different aquifers in different catchments of England and Wales. This has lead to the publication of a 160 page annex detailing different groundwater quality thresholds.

In many cases, the proposed threshold values are lower than prescribed concentrations for UK drinking water (specified in the water supply regulations). PBA has questioned the sustainability of aspiring to a situation where groundwater quality is superior to tap water quality.

The low groundwater threshold values proposed may lead local authorities or the EA to set unreasonably stringent remediation target values for groundwater where brownfield sites have recorded slight groundwater contamination issues. This in turn could lead to excessive costs for brownfield redevelopment in the future.

Darren Wilcox
Peter Brett Associates LLP
dwilcox@peterbrett.com

Article Business Practice Data Management Executive Loss Prevention

Sign off Responsibility

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It is common for Clients to request that their consultant obtains “sign off” of proposals for site investigation, risk assessment and in particular remediation verification reports.  In the Client’s mind, this means a letter from the regulator on their headed paper absolving the Client from any responsibility for additional investigations etc or from any further “interference” on their site subsequent to remediation works.

Often the consultant can be caught between a rock and a hard place as the regulator may often refrain from commenting upon such reports, let alone “signing them off”.  So what is reasonable for the Client to expect, the Regulator to agree and the consultant to deliver? In addressing this aspect in recent guidance (Ref 1), text was drafted, reviewed and eventually agreed by both Environment Agency and local authority representatives and is reproduced below.

Normally, on receipt of a Verification Report, the local planning authority will take advice from their environmental health / contaminated land officers (and the Environment Agency in some circumstances) and if satisfied, formally discharge the relevant planning condition by writing to the applicant.  If there is no such planning condition, the local authority or Environment Agency should nevertheless acknowledge receipt of the Verification Report. While liability remains with the developer / their insurers, they will often look to obtain ‘sign off’ of these reports by the relevant regulator(s). Regulators will not do this however, or issue their own verification of the works, but they may be willing to do one or more of the following:

  • indicate whether they have reviewed the report;
  • state whether they are satisfied with the level of detail provided;
  • confirm that it appears to be reasonable given the data presented;
  • make a statement about whether (based on the information supplied) they are currently considering the need for any enforcement action under various regulatory regimes.

It is important to understand that it remains the developer’s responsibility to ensure that they have met the remediation objectives, made the site suitable for use and adequately protected all of the relevant receptors.

It is therefore important when a consultant is agreeing a scope of works with a Client that any requirement for “sign off” in the contract is clearly framed along these lines.  Consultants should not promise to obtain a commitment from the Environment Agency and/ or the local authority contaminated land officer that are beyond these limitations.  Equally, it is in the interests of all parties that the positive engagement with the regulator on a project is recognised by written acceptance of a report by the regulator, along the lines set out above.

For those involved in the Remediation of a site that has been “determined” as contaminated land under Part IIA  of the Environmental Protection Act the expectations of sign off, should be even more constrained.  This is because in these cases the Statutory Guidance states that any person who has carried out remediation as described in a Remediation Statement can notify the local authority (ie by submitting a Verification Report) providing the details of the “remediation claimed to have been carried out”.  The local authority is then under a duty to include the details of the remediation which is claimed to have been carried out on its Register. The guidance then states that “Although Part 2A does not include any formal “signing off” procedure, the Enforcing Authority may wish to consider writing to the Appropriate Person, confirming the position with respect to further enforcement action.” – – – and that the local authority “might confirm that it does not consider that it needs to serve a Remediation Notice, which it would need to do if appropriate remediation had not been carried out”.

Ref 1.  Guidance for the safe development of housing on land affected by contamination.  R&D 66:2008. Available for free download atwww.nhbc.co.uk/Builders/Technicaladviceandsupport/Publications/ContaminatedLandDevelopment

Article Safety

The Dangers of Trial Pitting

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Tags: danger safety

Alex Wright

This is Alex Wright.
Alex was a 27 year old experienced geotechnical engineer.
He lost his life on Friday 5th September 2008 when the side of a trial pit collapsed on him.  It took over 24 hours for the rescue team to recover his body.
Alex was simply doing his job.

The legal position ……..

  •  Probability of criminal proceedings against the company
  •  Probability of criminal proceedings against the “manager”

Health & Safety At Work Act 1974 – Section 37 – Offences by the body corporate.
“Where an offence is shown to have been committed with the consent or connivance of, or to have been attributed to any neglect on the part of, any director, manager……. he, as well as the body corporate, shall be guilty of that offence.”   The penalty may well be a prison sentence

The Corporate Manslaughter and Corporate Homicide Act 2007

The Act applies to the corporate body and not to individuals of the company. The penalty could be a fine of 5 per cent of average annual turnover during the 3 years prior to sentencing.

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This photograph used to appear on the website of Alex’s Employer.

THIS SHOULD BE SEEN AS A WAKE-UP CALL TO THE GROUND INVESTIGATION INDUSTRY

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This trial pit is 5.5m deep.  What danger do you see in the picture?

How confident are you that your engineers:-

    • see the danger?
    • will not venture close to the edge (or into the pit)?
    • are conversant with your company’s safe working procedures?
Article Safety

Unexploded Ordnance – a Construction Industry Guide

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As the representative of the AGS on the project steering group for the forthcoming CIRIA construction industry guidance on UXO, Andy O’Dea of Peter Brett Associates LLP updates us on the scope of the guidance and the benefits it will bring.

In the March 2005 issue (number 49) of the AGS Newsletter, you published a letter from my colleague at Peter Brett Associates LLP (PBA), Richard Thomas, on the controversial issue of unexploded wartime bombs (UXBs).  It transpires that this was one of the contributing factors to CIRIA commissioning a research project to produce definitive guidance on the issue for the construction industry.  PBA has part funded the project and I have been involved throughout, representing both the AGS and PBA on the project steering group.  The final report is nearing completion and is likely to be published in the coming months.  I thought it was timely for me to write to update the AGS on the scope of the report and the benefits it will bring.

The assessment of risk associated with Unexploded Ordnance (UXO) is controversial and fraught with difficulties.  For example, several thousand items of ordnance are removed from construction sites in the UK each year (of which some 5% are live).  However, in the period 2006/2007 (readily available HSE records), no reported injuries to construction workers were attributed to incidents involving UXO.  This is in spite of other risks or accidents in the UK construction industry resulting in 77 fatalities, 3,711 major injuries and 7,108 other reportable injuries. Make no mistake about it, the risk associated with UXO is overwhelmingly influenced by the consequences of an event rather than the likelihood of encountering or detonating a device in the first instance.

Three main issues drove PBA to get involved in the project:

  1. A lack of any consistency in the assessment and reporting of UXO risk across the industry.
  2. An absence of scientific or methodical processes in the ‘black art’ of UXO threat assessment.
  3. The perceived conflict of interest in a UXO specialist providing advice on required mitigation measures and then offering contractor services to mitigate the risk.

 

We are pleased to say that all three issues have been addressed by the project guidance.

We feel that the report is a comprehensive and extremely useful piece of work that will help to dispel many of the myths surrounding UXO and allow future UXO risk assessments to be supported by a consistent and rigorous approach that is underpinned by scientific reasoning.  The report provides a comprehensive introduction to UXO and outlines the duties and responsibilities of the parties to a construction project in the context of UXO risk.  A clear and concise flow diagram outlines the risk management framework; from preliminary risk assessment (that can be carried out by a non-UXO specialist) through to detailed risk assessment, where required, (to be conducted only by a UXO specialist) and on to risk mitigation and implementation.  Each element of the risk management framework is described in full detail in subsequent chapters of the report.  Advice on emergency response planning and the appointment of UXO specialists is drawn out in the later chapters.

The report is supported by a dozen or so relevant case studies and especially important issues are emphasised in highlighted boxes.  Example risk assessment reports, verification reports and clearance certificates are provided in the appendices along with the ‘nuts and bolts’ of UXO survey techniques, equipment and limitations.

The report has been through a rigorous consultation process and has been distributed widely across the industry for comment on a number of occasions.  Consultation responses have been received from developer clients, regulators, consultants, contractors, infrastructure bodies, government defence organisations, academia and professional bodies such as AGS.  A special note of thanks goes to those at the AGS who have given their time and expertise in reviewing the report and making the consultation process a success.

This report presents a major advance in helping to provide a consistent and robust approach to the assessment of UXO risk in the construction industry and is to be welcomed.  Undoubtedly, it is a first step and further guidance will follow in time.  However, CIRIA Report RP732 Unexploded Ordnance (UXO) – a construction industry guide, is a big step in the right direction.

Andy O’Dea
Senior Associate
Peter Brett Associates LLP
17 September 2008