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STATES OF JERSEY
COMMITTEE OF INQUIRY: TOXIC INCINERATOR ASH DUMPING IN THE ST. HELIER WATERFRONT LAND RECLAMATION SCHEMES
Lodged au Greffe on 10th June 2008 by Senator S. Syvret
STATES GREFFE
PROPOSITION
THE STATES are asked to decide whether they are of opinion
to e st ablish a Committee of Inquiry in accordance with Standing Order 146 in order to examine all matters
relating to the handling and dumping of toxic ash from the Island's municipal waste incinerator into the marine land reclamation sites and other areas; and, specifically –
(a ) to examine the breakdown in public administration which enabled the irresponsible and unsafe
dumping of the toxic ash and to examine why this was able to occur and to consider what improvements and safeguards should be introduced in order to ensure that public administration is subject to effective checks and balances;
(b ) to consider what, if any, additional monitoring and precautions should be introduced to safeguard
human health from the toxins within the reclamation sites;
(c ) to consider what, if any, additional measures should be taken to protect the marine environment
from the toxins within the reclamation sites;
(d ) to consider whether States departments placed Jersey – and by extension the United Kingdom – in
a position in which it has breached its obligations under the OSPAR Convention as a result of the dumping;
( e ) t o examine and report on any related matters which the Committee considers relevant to its
inquiry.
SENATOR S. SYVRET
REPORT
It is plain on the evidence, as described in this report alone, that the health and welfare of the people of Jersey, the Island's environment and the marine environment which we share with our neighbours, have been needlessly put at risk because of a systemic and cultural failure of public administration in the Island.
A complete breakdown in effective checks and balances within the Island's public administration has occurred. The evidenced facts being clear – the States of Jersey must finally face the truth and learn the necessary lessons. The land reclamation sites which surround St. Helier's harbour area are toxic waste dumps.
Moreover – they are toxic waste dumps which have needlessly exposed the public to potential human health risks.
Moreover – the land reclamation sites are toxic waste dumps which are sea-porous and subjected to the vast hydro-pneumatic forces generated by Jersey's 13 metre tides.
Therefore St. Helier's land reclamation sites represent a massive source of potentially hazardous leachate into the sea.
How on Earth was this able to happen?
The States finally needs to recognise that the ash dumping – whilst a problem of itself – was really a symptom of a greater problem, namely, an apparent intrinsic inability of the Island's government to subject itself to meaningful and effective regulation.
Longer-serving members of the States and members of the public may recall that for many of the early years of the controversy – when people first started to object to the ash dumping – it was frequently claimed that there was no problem, that the ash did not represent a threat to human health, that it was "inert", that it posed no risk to the environment and that it was not toxic. Sometimes one still hears claims to that effect. Let there be no mistake about this: the ash is toxic; it always has been; even setting aside components of the ash such as dioxins, furans and polychlorinated biphenyls (PCBs), which only really became understood by science in the last half-century, many of the toxic heavy metals that are components of the ash have long been known to badly damage human health. In some cases this knowledge has existed for well-over a century.
Even now the incinerator and the handling and disposal of the resultant ash fail to meet acceptable standards. However, some improvements in the handling and disposal of the ash took place from the mid-1990s – after years of campaigning in the face of official denials. This leaves a period of time from the opening of the incinerator in the late 1970s to the mid 1990s when the behaviour of the Island's public authorities can only be described as utterly irresponsible and cavalier.
The question that therefore arises is this –
H o w is it that the entire panoply of public administration in Jersey – some parts of which have
specific duties to protect human health and the environment – can have failed to take proper steps to protect people and the environment from the toxic ash over a period of at least 15 years?
I know the answer to this question and it is a question that goes to the very heart of whether Jersey is, in fact, structurally and culturally capable of governing itself in a manner compatible with the health and welfare of its people? This proposition and inquiry is the test.
Why is an inquiry necessary?
To gain an expertly informed assessment of the ash dumping, its history, the deficiencies – be they organisational or cultural – of public administration which allowed this toxin-dumping to continue unchecked for so long, the long-term issues arising from the heavy pollution of the sites and to produce a detailed report and set of recommendations – for protecting human health, the management of the pollution in the sites, and of improvements to public administration so as to safeguard against similar failings in the future.
Why a Committee of Inquiry?
Having taken a long-term interest in this subject I know from personal experience that – sadly – a great number of straightforward lies have been told to politicians by certain civil servants. Therefore only a quasi-judicial process such as a Committee of Inquiry will be able to compel attendance of witnesses and examine them under oath – any untruths being spoken then being perjury. The States of Jersey (Powers, Privileges and Immunities) (Committees of Inquiry) (Jersey) Regulations 2007 contain a wide range of powers to enable the Committee to operate effectively and also make it clear in Regulation 8(3) that the immunity from civil or criminal proceedings given to a witness does not apply "to evidence given or documents produced by that person which he or she knows to be untrue".
It is the case that Committees of Inquiry can, by law, regulate their own proceedings. The relevant passage from standing orders is this –
"147 Committee of inquiry: proceedings
- A committeeof inquiry mayregulate its ownprocedure for theconduct and managementof its proceedings including, but not limited to,venueandadjournments.
- P roceedings before a committee of inquiry shall be held in public unless the committee, in the interests of justice or the public interest, decides that all orany part of the proceedings shall be in private."
The powers of a Committee of Inquiry are described in detail in the States of Jersey (Powers, Privileges and Immunities) (Committees of Inquiry) (Jersey) Regulations 2007. In respect of taking evidence under oath, Regulation 6 says –
"6 P ower to administer oath
- A committeeof inquiry may require a person appearing beforeitto give evidenceonoath.
- T he chairman of a committee of inquiry is authorized to administer the oath for this purpose."
Whilst it is accepted that the Committee of Inquiry will make its own decisions in respect of the procedure it chooses to follow, this proposition is brought forward in the hope that the proceedings will be held in public unless it is absolutely necessary to here any evidence in camera.
It is also my view that the Committee of Inquiry will not be able to access the truth unless it takes evidence under oath – with the resultant risk of perjury should any witness knowingly state falsehoods to the Committee.
The Evidential Background
Jersey's municipal waste incinerator commenced operation in 1979. It is also worth noting in passing that the incinerator itself produces such high degrees of toxicity and pollution from its chimney that it has been illegal to operate any such plant in the European Union for over a decade. Were Jersey a full-member of the EU – the incinerator would, by law, have been closed down.
Returning to the casual dumping of the combined ash into Jersey's land reclamation sites, this practice continued from 1979 until approximately 1995 – when, finally, after many years of campaigning – the authorities were compelled to adopt a safer and more responsible disposal methodology.
In the early 1990s, Jersey's Public Services Department, in response to concerns, commissioned Warr en Spring Laboratory to undertake an analysis of emissions from the incinerator. Included was a detailed analysis of the ash produced by the incinerator. The table I reproduce below is to be found on page 29 of the WSL report –
Table 1
TABLE 9 –CONCENTRATIONS OF METALS IN COMBINED RESIDUAL ASH
METAL | UNIT 2 | UNIT 3 |
| µg g | µg g |
Mercury | 0.46 | 0.29 |
Vanadium | 62.3 | 56.1 |
Chromium | 212 | 244 |
Manganese | 937 | 937 |
Cobalt | 21.2 | 17.7 |
Nickel | 60.3 | 74.9 |
Copper | 18110 | 1160 |
Zinc | 6200 | 4540 |
Arsenic | 54.2 | 34.4 |
Selenium | 1.41 | 0.53 |
Cadmium | 33.5 | 34.0 |
Tin | 274 | 272 |
Antimony | 177 | 83.8 |
Thallium | 0.45 | 0.33 |
Lead | 4170 | 2020 |
Amongst the other information in the report are two tables – 11A and 11B – to be found on pages 30 and 31 of the WSL report. These two tables describe the CONCENTRATIONS OF DIOXINS AND DIBENZOFURANS IN COMBINED RESIDUE ASH", for units 2 and 3 respectively. These showed the total dioxin and dibenzofuran content of the combined ash from unit 2 to be 6.4112 ng-g, and a concentration of 0.5014 ng-g for unit 3.
Thus the WSL report demonstrates scientifically that the combined ash from the incinerator contains a variety of toxic heavy metals and polychlorinated compounds such as dioxins and furans which are a proven threat to human health. To further demonstrate this fact I reproduce below a section of a table titled "Toxic Effects of Common Hazardous Compounds". This is from page 476 of "Hazardous Wastes: Sources, Pathways, Receptors" by Richard J. Watts, published by John Wiley & Sons, ISBN 0-471-00238-0.
Table 2
Chemical | Acute Effects | Chronic Effects |
Polychlorinated Biphenyls PCB's | Minimal acute toxicity (0.5 g/Kg to 11.3Kg | Chloracne; increased liver enzymes; possible reproductive effects; act as cancer promoters |
Dioxins and Furans PCDDs/PCDFs | Chloracne, headaches, peripheral neuropathy | Induction of microsomal enzymes; altered liver metabolism; altered T-cell sub- sets; immunotoxicity; strongly implicated in carcinogenicity (may be a promoter) |
Inorganic Compounds Arsenic | Loss of blood, intestinal injuries, acute respiratory failure | Myelogeneous leukaemia, cancer of skin, lungs, lymph glands, bladder, kidney, prostate and liver |
Cadmium | Vomiting, cramping, weakness, and diarrhoea | Oral ingestion results in renal necrosis and dysfunction; induces lung, prostate, kidney, |
and stomach cancer in animals; no documented
human cancer Hexavalent chromium Readily absorbed by the Lung cancer
skin where it acts as an
irritant and immune-system
sensitizer; oral absorption
results in acute renal failure
Mercury Central nervous system Central nervous system impairment including injury dysfunction, memory deficits,
to motor neurons; renal decrease in psychomotor disjunction skills, tremors
Nickel Not highly toxic, headache, Immune system effects shortness of breath resulting in allergic contact
dermatitis
It appears that the WSL study did not test for polychlorinated biphenyls (PCBs) but it is likely that PCB is also present in the ash given its past use in electrical equipment. Only 5 of the 15 metal components of the ash identified in the WSL report are described in Table 2 so one must consider the fact of the existence of additional hazardous components in the ash to those listed in the table.
Therefore, when considering human exposure to the ash and potential health impacts, we must acknowledge that we are not dealing with the possible effects of just one toxin – but a cocktail of toxins. Depending upon the degree and type of exposure, the potential health impact could be greater than that predicted for a single toxin. Moreover, there may be a synergistic effect, that is, an additional effect greater than that which might be predicted from exposure to the individual toxins or the toxins combined.
In terms of real-world human health impacts of exposure to the incinerator ash, it might be hypothesised that we are unlikely to be dealing with acute effects. It is likely that if any human health impacts flow from exposure to the ash, it is the chronic effects, rather than the acute effects that we need to be particularly concerned with. If any chronic effects have occurred, the most likely cohort of the affected will be site workers exposed to the combined ash. It should be stated that no manifestation of ill health effects potentially caused by the ash have yet been detected. It is to be hoped that none occur, although a detailed epidemiology study would need to be undertaken over an extended period of time.
However – and this is one of the prime concerns underpinning this proposition – if no human health impacts have occurred – it is more by luck than judgment.
The States of Jersey has committed gross errors, and exhibited a cavalier attitude to the dumping of the ash. These include the dumping of the combined ash – a proven cocktail of toxins – into a sea-porous land reclamation site; leaving the dumped ash exposed to the air for extended periods of time enabling the dried ash to be blown across pedestrian areas and onto nearby buildings; causing people to become exposed to the ash; failing, for many years, to protect workers on the sites from close exposure to the ash over extended periods of time and failing to properly take into account the long-term future use of the sites once completed.
In its error-strewn and incompetent handling of the incinerator ash, the States of Jersey has played Russian roulette with the health of this community and our environment.
It has always been – even as a lay-person – very easy to establish 3 basic facts –
1 : th a t the incinerator ash was a cocktail of proven toxic components;
2 : th a t dumping the ash in a manner that exposed workers, the public and the marine environment to
it was not a good idea;
3 : t h at other dumping methodologies which could be employed would be an improvement; for
example, disposing of the ash in lined pits or binding the ash in some form of matrix material thus rendering it into a less environmentally available form.
If a lay-person could readily establish these facts within days of taking an interest in the subject, how can it be that every relevant States agency failed, to a lesser or greater extent, to respond in an adequate and/or timely manner to issues associated with the ash dumping over a period of at least 15 years?
And what does this say concerning the quality and safety of public administration in Jersey?
What risk do these sites pose to the marine environment in the next 50, 100 or 150 years? And is this our problem? Dr. Michael Romeril, the Environmental Adviser, in a report of 1992, quotes a figure of 17, 217 tonne of combined ash dumped in 1988 alone. As is well documented, the volume of waste going to incineration, and consequent ash disposal, has risen steadily over the years. However, let us make a conservative estimate for the amount of ash dumped from 1988 until 1995 when dumping practice changed. Take a conservative average of 17,000 tonnes per year and multiply by 8. This gives a figure of 136,000 tonnes of combined incinerator ash dumped in the site in a reckless manner – in this 8 year period alone.
But it should be noted that this figure completely excludes the many tens of thousands of tonnes of combined ash dumped from when the incinerator first came on-stream in 1979.
Dr. Romeril goes on to quote the amount of some of the heavy metals in the 17,217 tonnes for the single yea 1988 –
" a p p roximate total input per year of 440kg cadmium, 4.8kg mercury and 64,000kg lead. Whilst salts of these metals are not particularly soluble, an aging and mineralization process may continue for hundreds of years. (Hjelmar, 1987)"
Some important observations –
• These volumes need to be multiplied for every year of dumping from 1979 until 1995.
• These figures deal only with 3 of the 15 metals identified as components of the ash by the WSL report.
• These figures do not deal with the dioxin, furan and PCB content of the ash. These toxins, whilst not water soluble, could nevertheless be transmitted to the broader environment through the sea
water acting as a vector for ash from the sites. Additionally, these toxins may be released to the environment every time contaminated areas of the waterfront are excavated.
However, the "official" view of the relevant States departments of the risks these contaminants pose was remarkable for the simple incompetence and dishonesty which was routinely displayed.
Indeed so lax and incompetent were the Public Services Department, that it took until the mid-1990s for it to produce a report that considered future strategies for dumping the ash – and even then the report only came about as a result of sustained political pressure. This leaves us considering a period of nearly 2 decades of cavalier irresponsibility and intransigence on the part of the Island's waste disposal authorities.
To say that the report itself, Incinerator Plant Ash Disposal – Strategies for the Future', was riddled with inadequacies would be an understatement. In the early 1990s, oyster farmer and marine biologist, Mr. Tony Legg took a detailed interest in the ash dumping and related issues. He produced a number of papers which he supplied to the authorities and interested politicians, myself included.
In a commentary on the PSD report referred to above, dated February 1995, Mr. Legg makes the following observation –
" T h e document contains numerous technical errors, misinterpretations and, it would appear, deliberate attempts to confuse and mislead lay politicians. If this is a document to lay to rest the "criticisms originating from sources with little knowledge or experience of the complex issues involved" then it falls well short of the mark and exposes instead the Department's poor grasp of wider issues. It also exposes the Department as wishing to avoid, rather than comply, when their position as enforcer/competent authority should be beyond reproach."
Speaking as someone who witnessed the performance of the Public Services Department at first hand, as a member of the Committee from the end of 1990 until 1993 until I resigned over this issue, I can only agree entirely with Mr. Legg's assessment of the performance and motivations of the Department.
In a paper written in respect of the then proposed dumping of ash in the south of La Collette site, Mr. Legg considered the potential for Cadmium to leach –
" F r o m the above observations it is evident that an oxidising environment that is high in chlorine, that fluctuates in salinity, that occasionally is anoxic with free sulphide ions, that has a water table comprised of tidal and field water capacity interstitial solute, and has energy put into the system by tidal movement of that solute, is very well suited to making cadmium bioavailable. In addition, the ash material is already in an oxidised state, thereby speeding up the process.
" In s itu, the ash is likely to be just above the MHWS mark and some 2 meters deep with c. 1 mete overburden. After normal rainfall or windblown spray this zone will be at field capacity with water filling all available pore spaces. When the tide rises or falls this water will be moved and exchanged, salinities will change, waters will drain and cadmium enriched leachate will form."
Although written in respect of proposals to dump ash in a layer above MHWS across the La Collette 2 site, thes observations could apply to the West of Albert site where ash was dumped extensively in a layer across much of the land reclamation scheme. The processes described could be occurring now or begin to occur in the future. A further factor that must be of grave concern is the potential for tidal forces to extract material from the sites. This is problematic for several reasons, not least that such erosion would cause the toxic ash to be taken into the marine environment in substantial quantities. There is a risk of significant quantities of infill material being removed from the reclamation sites through the action of the sea. Mr. Legg also highlighted this danger in a paper –
" H y d ropneumatic Erosion: This process warrants most consideration. It is the process that leads to Blow Hole' formation on exposed cliff faces. Where wave action is severe, voids are formed within the eroded face. Subsequent wave action then compresses air within the void which can then expand explosively. Of interest is that this process can continue many tens of meters from the point of wave action and many meters above the high tide mark. (St. Catherine's Breakwater had a void 26 meters deep caused by this process, 25 km fetch). It may be that no area within the new reclamation is risk free from this process, including high level profiles."
POSSIBLE HEALTH IMPACTS
In 2001 the Health and Social Services Committee, under my Presidency, requested its officers to prepare a report which examined the health implications of the contaminated reclamation sites. The then Medical Officer of Health, Dr. John Harvey, and Health Protection Officer, Steve Smith, co-authored a report titled: Health Impact of the West of Albert Pier Reclamation Site.' I quote from that report here –
" R e c ent published studies have recognised the possible cumulative and synergistic effect of multiple hazardous agents, and have looked at the effect of exposure to hazardous sites, not individual toxins. The exposure risk is residence near to contaminated sites.
" T h e risk of adverse birth outcomes has been the focus of two such studies. A study of all residence near landfill sites in Great Britain showed small excess risks (c.10-20%) of some congenital anomalies and low birth weight. This was not greater near sites with special waste (i.e. known toxic waste such as
incinerator ash) possibly because these sites were subject to strict regulation. The authors noted that the small
excess could be due to residual confounding (unmeasured effect of deprivation) or data artefacts. Another Europe wide study showed higher levels of risk for congenital anomalies. This study, known as EUROHAZCON used data from 7 registers in 5 countries. It showed an increased risk (2– 3 times higher) for mothers living within 3km of landfill sites.
"A s t udy in Canada showed increased risks of certain cancers for men living near solid waste landfill sites.
The increases of twice the risk were shown for cancer of the pancreas in men living within 1.25km, cancer of the liver for those living within 1.5km, and non-Hodgkin's lymphoma within 2km."
As far as I am aware, this work by Dr. John Harvey and Steve Smith, represents the very first time frank and professional information concerning possible health impacts arising from the ash dumps, was put before any States committee – this after 23 years of incinerator operation. One can only wonder what else the public and the Island's politicians are not told?
The observations of Dr. Harvey and Mr. Smith quoted above show that a link between waste dumps and il-lhealth has been demonstrated epidemiologically. It also illustrates the fact that medical science is a constantly evolving field of work. It is feasible that in the not distant future, medical science may concluded that multi-toxin compounds, such as the incinerator ash, represent a greater threat to human health than is recognised today. It should be noted that the toxicity of substances is rarely down-graded.
More usually, as scientific knowledge advances, substances are demonstrated to be more toxic than previously thought. Even the scientific orthodoxy of the day can prove to have been wrong. Organophosphate pesticides and asbestos were at one time not regarded as posing a particular health risk. Likewise BSE was thought to be not transmittable to people and thus did not represent a human health risk. The prevalent scientific orthodoxy of the day was wrong.
However – it must be recognised that when considering the incinerator ash we are not dealing with speculative toxicity. As shown above, many of the components of the ash are proven, known toxins.
The long-term failure of the Environmental Health Department (now known as the Health Protection Department) has to be regarded with the utmost seriousness. There is simply no hiding place from this fact. Until the arrival in the department of Dr. John Harvey and Steve Smith, the Environmental Health Department, preceding MOHs and Health and Safety at Work failed in their duty to intervene and seek to protect the public from a health risk posed by the mass dumping of an unambiguously toxic material. How could this have happened and what needs to be done to ensure that no similar failure occurs again?
For example, questions need to be asked of Dr. Richard Grainger, a former Medical Officer of Health, concerning his failure to act appropriately in this matter.
In a letter to me, dated 15th August 1995, Environmental Adviser, Dr. Michael Romeril, enclosed a letter he had received from Dr. Grainger, dated 11th July 1995. In this letter Dr. Grainger said–
" I h a ve liaised with Tony Bruce, who has taken over from Tony Littlewood as Chief Environmental Health Officer, and can confirm that we will be involved as and when necessary on this issue. Certainly, investigations that we have taken up to now, do not show this to be a major health issue, although obviously a highly emotive political problem."
Dr. Grainger's intransigent attitude to the subject is further demonstrated in the fact that the Public Services Department quoted his media comments in their report concerning future ash dumping strategies –
" A l l of these statements have originated from uninformed sources. The reality is, as usual somewhat different –
(a) The Medical Officer of Health was reported in the Jersey Evening Post on 7 September 1993 as follows: "Dozens of people die every year from smoking related diseases such as cancer and
emphysema but not one death has been traced to refuse waste – if we want to clean the atmosphere we
should do something about it (smoking)."
A number of observations have to be made concerning Dr. Grainger's comments –
• Smoking is indeed a serious human health threat and that fact is widely known amongst the public, most of whom are able to take decisions to cease their exposure to tobacco smoke. People
are generally unaware that that the ash is a threat to their health, and the exposure of workers and the public to its toxic components is entirely involuntary.
• Exposure to the toxic components of the ash of people who may face other health risks, such as smoking or pre-existing medical conditions, represents an additional health burden – not an
alternative health burden. Dr. Grainger refers specifically to"refuse waste", not the combined incinerator ash and its toxic components – a demonstrably toxic material, tens of thousands of tons of which are layered
across the reclamation sites. The ash was dumped in a manner that routinely exposed workers and the public to it.
• Dr. Grainger asserts that "not one death has been traced to refuse waste". This assertion is certainly wrong. For decades medical science and health protection experts have recognised the
fact that refuse waste, especially in concentrated dumps, represents a variety of threats to human health. These include infection from putrescent waste, threats from vermin, exposure to dusts from such material, lung damage, the ingestion or inhalation of toxic substances in the refuse and the potential for illnesses such as emphysema, cancer and renal failure as a result of chronic, long-term exposure to hazardous substances emitted by waste dumps, for example to the air or water supplies.
• Can it be considered remotely professional or ethically acceptable to simply brush aside and dismiss public exposure to thousands of tonnes of material that contains a cocktail of toxins, such
as cadmium, mercury, arsenic, lead, dioxins, furans and PCBs, by simply pointing to another hazard, such as smoking?
The attitude of Dr. Grainger came as no surprise to me, it being all of a piece with the self-interested denials of every other culpable States agency. In the early 1990s former Senator Nigel Querée and I arranged to meet with Dr. Grainger to discuss our concerns with the ash dumping. We pointed out that the ash was toxic and presented photographic evidence that showed the haphazard and irresponsible dumping of the ash next to areas where the public were walking. His response was to angrily and fearfully dismiss our concerns. The most he conceded was that the seagulls feeding on the unburnt putrescent waste in the ash might be contaminated. It should be remembered that we are not considering a material that might, hypothetically be toxic. The ash contains a cocktail of proven toxins.
Dr. Grainger's approach should be compared and contrasted with other expert medical opinion. Neither the previous Medical Officer of Health, Dr. John Harvey, the then acting MOH, Dr. Duncan Nicholson or senio Health Protection Officer, Steve Smith have ever disputed the facts that the ash was toxic, that people should not be exposed to it and that the dumping practices of the 1980s and early 1990s were wrong and unacceptable.
In May 2002, at the request of my Health and Social Services Committee, the United Kingdom Chemical Incident Response Service was asked to undertake chemical hazard investigation of the West of Albert site. That report, by Giovanni Leonardi, is included as an Appendix. As a part of this work, an overview of previous documents was undertaken. Mr. Leonardi summarised some earlier findings –
" A r s enic, cadmium, copper, lead and zinc in stockpiled or fresh combined ash from the site, as well as quenched bottom ash, are considerably higher than the threshold values considered acceptable by ICRCL guidance for domestic gardens and allotments, parks, playing fields, open spaces, hard cover and built up
areas. Mercury concentration in the same samples is at the ICRCL threshold value for domestic gardens and
allotments. Ash, arsenic, cadmium, lead, copper and zinc content exceeds the Dutch action level for contaminated land, whereas chromium content exceeds the Dutch trigger level."
Later in the report, Mr. Leonardi went on to address the following question –
"24. I s there a pathway between the source of the contamination and any potential targets (human,
animal etc.)?
T h e re are four potential pathways:
direct contact between humans and contaminated soil on the site
bioaccumulation of dioxins and mercury in the food chain, and possible human exposure via the food chain
migration of dioxins and metals to the sea and impact on sea life. This is the major potential effect of groundwater flows described in section 11
migration of dioxins and metals to fresh water and possible human exposure via water. It is unclear how much this pathway can in fact be confirmed, but the potential is implicit in the
groundwater flows described in section 11."
To recap – we can see from the evidence – I repeat, evidence – of the Warr en Spring Report, the table from Hazardous Wastes: Sources, Pathways, Receptors, the observations of Dr. John Harvey and Steve Smith, and the report by Mr. Leonardi that the ash from Jersey's municipal waste incinerator is a toxic waste.
Moreover – the ash is not merely a simple, single toxin. The ash is clearly a multi-component cocktail of many proven toxic, mutagenic and carcinogenic elements.
HEALTH AND SAFETY AT WORK ISSUES
Having laid out the human health issues above, I need not repeat those facts in this section. We must, however, come to grips with another clear and shocking failure of public administration in the Island. Jersey has legislation – the Health and Safety at Work (Jersey) Law 1989 – designed to protect workforces from occupational hazards. Under this Law employers have a range of legal duties which include –
• making the workplace safe and without risks to health
• keeping dust, fumes and noise under control
• ensuring that articles and substances are moved, stored and used safely
• to take proper precautions to prevent employees being exposed to substances which may damage their health
• to give employees the information, instruction, training and supervision necessary for their health and safety.
Whilst this particular Law came into effect in 1989, the 5 requirements listed above represent a commonsense approach to protecting a workforce of the kind that we would expect any decent, ethical employer to follow. It is also the case that, whilst codified in this Law – there has always been an inescapable general duty of care by a government to protect the public and workers from exposure to known toxins.
By these standards what can we say of the States of Jersey? From the late 1970s when the incinerator first came on-stream until the mid-1990s, the States of Jersey caused and allowed all 5 of these principles and practices to be broken and cast aside in respect of employees – either their own or those of contractors – working on the reclamation site projects.
There are a variety of photographs which show merely some of the degree of worker exposure to the ash. The actual dumping was carried out without any visible health and safety precautions for workers transporting, tipping and levelling the ash. Of equal concern is the fact that construction workers carrying out excavations and other such works on the sites were not protected from exposure to the ash and its toxic components. I personally witnessed on many occasions workers shovelling through ash pits and infill contaminated with ash, without any protection. This approach continued until the mid-1990s. However, even now, workers are exposed to the material. To illustrate this fact I quote a further passage from the CIRS report by Giovanni Leonardi –
" T h e form of the chemicals present at the site is likely to have been influenced by the presence and movement of water, and predominantly sea water, across the site. This impression is confirmed by reports from the builders that the workers were awash with slurry during the construction work. However, the effect of sea water on the chemicals present on site has not been described in the reports available to CIRS."
I witnessed these construction works and the workers were indeed exposed to pure ash, contaminated infill and ash-rich slurry. This last form of exposure was particularly noticeable during piling operations when water black with ash would gush into the air, often contaminating the men operating the rig.
It was also the case that during the construction of the Esplanade underpass, workers were needlessly and unsafely exposed to substantial volumes of dumped toxic ash when re-excavating the dump site.
The fact that construction workers were needlessly – and unlawfully – exposed to such risks is beyond argument.
What we must do is face up to how things could have gone so wrong – and what new safeguards we need to enact to prevent a repetition.
Conclusion
So – why then did the States of Jersey – why did every relevant public administration agency in the Island – not only fail to handle the ash appropriately from the outset – but for at least 15 years pro-actively engage in deception and cover-ups when concerns were being expressed?
Why did Public Services, Health and Safety at Work, Agriculture and Fisheries, Environmental Health, and Planning and Environment all fail to prevent this disaster – and instead pro-actively engage in concealment?
In many ways – these questions contain within them, their own answer. Which is – having failed to act appropriately at the outset – every agency of the States of Jersey – and the relevant staff within them – then had a mutual interest in closing ranks, maintaining the fictions, deceiving both politicians and the public and engaging in the culture of concealment.
Indeed – precisely the same syndrome we see manifested all too clearly in the Jersey child abuse disaster.
There is simply no escaping the fact that we are dealing with a gross, irresponsible, dangerous and mendacious example governmental failure.
We need to know –
Why that happened?
How it was able to happen?
Who was culpable?
Why did such a complete breakdown of checks and balances occur? What lessons need to be learned?
What action we may need to take to remediate the site?
What action we may need to take to examine, on a long-term basis, human health risks and impacts?
What action we may need to take to prevent the many tens of thousands of tonnes of toxic ash escaping into the marine environment in the event that the reclamation sites become eroded, or threatened by rising sea levels and increased wave action as a result of global climate change?
These are just some of the questions which must be answered. Financial and manpower statement
There will be costs involved in carrying out a public inquiry, but such is the potentially serious and long-tern nature of the ash dumping and of the public administration breakdowns involved, that we have little choice other than to investigate the matter comprehensively.
It is difficult to accurately estimate the likely cost of the Inquiry. To provide a general illustration of costs of Committees of Inquiry I include this table –
COMMITTEES OF INQUIRY SINCE 1998 Timescale and costs
Subject | Establishment of Committee agreed by the States | Members appointed by States | Report presented to the States | Months between appointment of members and final report | Co |
Beauvoir | 7th October 1998 | 20th October 1998 | 6th July 1999 | 8½ months | £ 2,1 |
Building Costs | 17th November 1998 | 8th December 1998 | 10th September 2002 (Interim report on 4th July 2000) | 45 months | £96,8 |
Honorary Police | 3rd July 2001 | 27th November 2001 | 3rd December 2002 | 12 ¼ months | £5,2 |
Housing Trusts | 8th October 2002 | 22nd October 2002 | 13th May 2003 | 6 ½ months | £3,4 |
Bus tender process | 9th March 2004 | 12th October 2004 | 2nd August 2005 | 9 ½ months | £50,2 |
Note. The executive support for the Beauvoir, Honorary Police and Housing Trusts inquiries was provided by an existing Committee Clerk in the States Greffe and the salary cost of this support is not reflected in the above figures. For the real' cost of those Inquiries an approximate cost of 50% of a Grade 10 salary for the duration of the Inquiry should be added to the above figures for those 3 Inquiries.
It seems likely that the Committee of Inquiry will need administrative support from the Greffe at a cost of 50% of a Grade 10 salary; this being in the region of£22,000 to £25,000.
The Committee may well need to employ an independent expert, as Scrutiny Panels do. To illustrate the range of these costs I include this table showing the costs for 2007 –
Centeniers' Role – Magistrate's Court £7,086.58 Overdale £175.00 Early Years £11,288.03 GST £21,216.90 Zero-Ten £15,902.31 JCG £4,628.40 Overseas Aid £5,926.69 Migration Policy £5,467.66 Waterfront £1,900.00 Air Quality £6,828.29
Housing Property Plan £13,411.18
Income Support £25,112.26
Telecoms £10,663.97 It will also need to call expert witnesses, probably from the United Kingdom.
Given the serious and complex nature of the issues, it is more realistic to imagine the costs of this Inquiry being akin to the more serious inquiries such as the bus tender process and the building costs enquiry. Essentially, this would place the estimated costs between £50,000 and £100,000.
This is a significant sum – but it must be remembered that we are dealing with an issue of some gravity and, moreover, a subject which will be a long-term problem for this community. This sum has to be contrasted with the circa £300,000 per annum spent by the Chief Minister's Department on spin-doctors.
Clearly and unavoidably, there will be some cost involved in conducting the Inquiry.
Obviously – it is possible that some significant costs could arise as a result of putting into action any recommendations the Inquiry may make.
But what price human health?
What price protection of the environment?
APPENDIX Report by Giovanni Leonardi, of the United Kingdom Chemical Incident Response Service, 22nd May 2002
SITE INCINERATOR ASH DISPOSAL SITE NEAR ALBERT PIER, ST. HELIER, JERSEY DATE 22 – 05 – 02 T I M E 9 . 5 0 : 17.00
WHO VISITED DR. JOHN HARVEY, DIRECTOR OF PUBLIC HEALTH SERVICES, JERSEY; STEPHEN SMITH, EHO, JERSEY; JOHN SCALLY, WATERFRONT ENTERPRISE BOARD LIMITED, JERSEY; GIOVANNI LEONARDI, CIRS
INCIDENT SUMMARY
- States of Jersey Health & Social Services have been asked to review possible health impacts ofcontaminated land (including incinerator ash) in view ofthe current building developmentsonthat site and possible risks to thosewho will live there, orthosewho will use the leisure facilities
- States ofJersey are also preparing new wastemanagementstrategyand need todiscuss potential impact of new incinerator
FURTHER INFORMATION
- W h o has identified the issue totheHealth Authority?
T h e i ssue was identified within the Health and Social Services Committee
Local Authority Local Residents Other: Environment Agency Emergency Services
- H o w was the issuediscovered?
Spill, leak, explosion Planning application Complaint etc.*
Routine testing ** Change of land use Other:
* o r o ther acute incident
* * p l anned by the Environmental Health Department of the Health & Social Services Committee
- H o w long has there been a problem?
T h e p roblem was first identified in the mid 1980s. It became an issue in 1995.
- W h o is currently involved intheincident including the incident investigation?
H e a l th and Social Services Committee: Senator Syvret (President), G.E. Jennings (CEO), Dr. J.
Harvey (Medical Office of Health), S. Smith (Environmental Health Officer)
P la n n ing and Environment Committee: Senator N.L. Querée (President), J.H. Young (CEO), J. Rice
(Environmental Service Unit)
P o l ic y and Resources Committee: Senator P.F. Horsfall OBE (President), Dr. M. Romeril (State
Environmental Adviser)
(C o n tinues next page)
E m p loyment and Social Security Committee: Senator T.A. Le Sueur (President), C. Myers (Health
& Safety Inspectorate), Mrs. L. McGurty (Health & Safety Inspectorate) P u b l ic Services Committee: J.D. Richardson (Chief Executive Designate)
H o u s ing Committee: E. Le Ruez (CEO)
W a te rfront Enterprise Board Limited: M. Bralsford (Chairman), John Scally (Managing Director)
SITE SPECIFIC INFORMATION
- W h ere is the site? (Postcode if possible)
S t. H elier waterfront Land Reclamation Site – See Figure 1 (P o s t codes are available in Jersey)
- H o w big is the site (acres/hectares)? 1 4 h e c t a r e s
- i s t he area predominantly rural or urban? U rb a n waterfront
Figure 1. Location of contaminated land near waterfront at St Helier, Jersey (adapted from Arup
Rothwell Consulting Engineers report of Jan 2000)
- W h atisknownabout the history of the siteandtheadjacent land?
H i s to ry of the site was studied on old historical maps, construction plans, etc. by Arup & Partners. A
harbour plan in 1838 shows the site to be offshore. A plan of St. Helier in 1848 shows the location of a large sewer outfall at the end of the esplanade. Albert Pier was constructed between 1847 and 1856. A plan dated 1878 shows the western side of Albert Pier to be protected by what appear to be boulders. In 1896 the two outer berths of Albert Pier were reconstructed on rock and the berth dredged to 2.60 m. Aerial photographs in 1944, 1979, 1980 at low tide show no changes to the site, which was underlain by sand. The marina to the East of the site was constructed in 1981 (the "old marina"). The site was reclaimed from the sea in the 1980s and 1990s as part of the "West of Albert Pier Reclamation Works". As part of this development, an area west of Albert Pier was enclosed in the early 1980s by the construction of a rockfill bund some 10m high. Filling of the enclosed area began in May 1985 with completion in late 1995. The principal source of fill material was demolition debris and surplus soil
arising from nearby building excavations. The annual filling totals increased from about 90,000 m3 in
1985 to nearly 170,000 m3 in 1993/94. By 1993 the site was substantially filled, and a new rockfill bund was built to the west of the first one, to extend the area of the filling. Figure 2 shows the reclaimed sites,
with "land reclamation area" being the new site between the first bund (east) and the second bund (west). This new reclaimed site was closed by a new vertical wall, which forms the northern limit of a "new marina" development. (From Arup Rothwell Report)
Figure 2. Location of incinerator ash disposal sites near waterfront at St. Helier, Jersey.(from WRc
Environmental Management report of Nov. 1995)
The average height of the fill at the site is 9 to 10.5 m AOD[1].
T h e B ellozanne municipal waste incinerator was built in 1972. Ash from incineration in the period from
1972 to mid 1980s was stockpiled near the site of the incinerator. From May 1985, ash from the incinerator was disposed at Albert Pier Reclamation Site. Initially, ash was tipped together with inert fill material in the area behind the Albert Pier wall. From September 1987, the method of ash disposal was changed, in order to restrict it to pits above mean high tide level (see Figure 2). Senator Syvret, President of the Health and Social Services Committee, is in possession of photographs documenting tipping of incinerator ash on several locations within the site, with no apparent restriction of the tipping to any specific location or pit even later than 1987, however only some of the photographs' year is documented.
W h en the reclaimed site was filled, incinerator ash from Bellozanne incinerator started being disposed at
the La Collette landfill outside St. Helier. The Waterfront Enterprise Board was established to develop the reclaimed site on the waterfront at St. Helier, and they commissioned an assessment of the reclaimed land to WRc Environmental Management in November 1995. Several waterfront developments were planned, including housing and a leisure centre. The Waterfront Enterprise Board then commissioned a geotechnical report on the Albert Pier Housing to Arup Rothwell Consulting Engineers, this was published in December 2000, and construction work started the following year. A public health opinion on the possible health hazards of incinerator ash on the site was requested to the Health and Social Service Committee in mid-2000.
- W h at is the site currently used for?
Parkland Light Allotments Derelict &
Commercial abandoned site
Housing Heavy Industry Farming Other:
A housing development is currently nearing completion on the site marked "area 2" in Figure 2. A leisure centre including a swimming pool, park area and other facilities is in advanced stages of completion.
- W h at is the soil type?
Sand Silt Clay Loam Mixed Other:
Mixed waste
material
Yes No
What is the underlying logy/hydrology?
Is the site on/near an From the WRc report:
uifer? A. Perched groundwater. Groundwater was
encountered in 26 of 32+16=48 trial pits (page 50 for denominator, page 69 for numerator). These seepages were generally encountered at levels well above mean sea levels and had low chloride contents, indicating the presence of "perched" groundwater deriving from infiltration of rainwater (page 69).
- Other groundwater. Boreholes also found groundwater, with moderate to high chloride content, indicating significant influx of sea waterbeneath the site. Asgroundwaterwas carried out atthe end of a long, dry summer period, it is expectedthatgroundwater levels may rise in winter in response to winter rainfall (page 69)
- Groundwater flows. Though an earlier report suggested overall limited permeabilityof the fill material, this initial interpretation was significantly modified by the 1995 report. This concluded that "the effects offlushing by sea waterextendbeneath the major part of the fill area" (page 83). At high tide the external sea level charges the ground with sea water; at low tide seaward gradients are developed, with important flows to the sea (page 83). Existing data provide a clear indication that interchange of groundwater between the fill, the marine sediments, and the bedrock takesplace (page 83).
Is there an abstraction Not on nt on or near to the site? the site Do any (plastic) water Sewage conducts discharging St. Helier's waste
es run through the water to sea
ound?
Other Bedrock: mostly granite, with some
metamorphosed sands, silts and mudstones of the Jersey Shale Formation under the northern part (area 3 in Fig. 2 in the present report), and some volcanic, pyroclastic and associated sedimentary rocks of the St. Saviour's Andesite Complex in the North East part of the site (From the WRc report, page 8 and Figure 2)
- D o es a stream/river flow throughor near to the site?
T h e G rand Vaux stream comes through the middle of St. Helier, and discharges near the site.
- W hatis the topography?
W a t e r permeable fill material
- W h at is the prevailing wind direction? N o r t h Westerly and South Westerly
- H o w close is the nearest property to the site? T h e r e is property on the site
CONTAMINANTS IN THE SOIL
Three sets of results were made available to CIRS:
- Analysis of dioxins and metalsconcentrationofincineratorash that were requested bytheJersey States PublicServicesDepartmentto the Warr enSpringLaboratoryin1992.
- Analyses of metals in ash, inert waste, stockpiled inert waste, and leachate as part of the "Assessment of reclaimed land atSt. Helier" by WRcEnvironmentalManagement, in 1995.
- Analyses ofmetalsandotherchemicals,butnot dioxins in ash, general fill, and rubble, byAmplus Ltd. undersupervisionbyArupRothwellConsultingEngineers in July-August 1999, reported in 2000.
16. W h at chemical(s) is present?
- Warr enSpringLaboratory.Thatinvestigation looked at severalemissionsandoutputsof the incinerator, including dioxinsandmetals in combinedand fly ash samples.Samples were collected of precipitator fly ash, and combinedgrateresidue ash. Concentrationwere estimated for mercury, vanadium, chromium, manganese, cobalt, nickel, copper, zinc, arsenic, selenium, cadmium, tin, antimony, thallium, and lead (Hg, V,Cr,Mn,Co, Ni, Cu, Zn,As,Se,Cd,Sn,Sb, Tl, and Pb). Results for dioxins and dibenzofurans in combined and fly ash were also obtained.
- WRc EnvironmentalManagement.Ashandinertsamples were examinedforcontentin arsenic, mercury, copper, zinc, cadmium, lead, and chromium twice, firstinMarch-April 1995, the second time inSeptember1995. Chlorine, SO4, pH, and organic carbonwere only measured thefirsttime; nickelonlythe second time.
- Arup RothwellConsultingEngineers. Soil from eightboreholeswasexaminedforcontent in arsenic, cadmium, chromium total and hexavalent, mercury, lead, selenium, boron copper, nickel, zinc , sulphur, sulphide, cyanide, thiocyanate, phenol, PAH screen, and toluene.
17. W h at form is the chemical(s) in?
- Warr enSpringLaboratory. Analyses were carried out using ICP-MS (therefore providing estimates oftotalmass for the metals,not the chemical form presentin the ash).
- WRc EnvironmentalManagement.Analyticalprocedures are described in Appendix (not included in copy available to CIRS).
- Arup RothwellConsultingEngineers.Chemical tests are describedin the Contractor's Factual Report (not available to CIRS).
T h e form of the chemicals present at the site is likely to have been influenced by the presence and
movement of water, and predominantly sea water, across the site. This impression is confirmed by reports from the builders that the workers were awash with slurry during the construction work. However, the effect of sea water on the chemicals present on site has not been described in the reports available to CIRS.
18. W h at levels of chemicals have been detected in the soil?
- Warr enSpringLaboratory(1992). Results formetals are presented in Table 9 oftheir report for combined residue ash and Table 10 for fly ash. Results for dioxins and dibenzofurans in combined and fly ash are presented in Tables 11A+B and 12A+ B respectively. Incinerator ash metal contentwas typical ofUKincinerator residues, expect copper in combinedash that reached the value of18,000microgram/g, considerably higher than the value expectedinUKplantsof1,500microgram/g,andlead in fly ash with a concentration of 26,000 microgram/g, higher than the typical UK value of 5,000 microgram/g( Warr enSpring report, page10-11).At that time,dioxinsconcentrationswere high intheJerseyashcompared with similar UKincinerators( Warr enSpringreport,page 11).
- WRc Environmental Management (1995). Results are presented for total excavated material in Tables 6 and 7 of their report(pages28 and 29). Leachingtest results are presented in Table 8, 9 10 and 11, and Figures 6 and 7 (pages 32-39). A comparative analysis over time is presented in Table 12 (page 40),whereasTables13 and 14compareth Jersey ash with guidance by the Interdepartmental Committee on Redevelopment of ContaminatedLand(ICRCL)andDutch trigger values(pages42-43).Arsenic, cadmium, copper, lead and zincin stockpiled or fresh combinedash from the site, as well asquenched bottom ash,are considerably higher than the threshold values considered acceptable by ICRCL guidance for domestic gardensand allotments, parks,playing fields, open spaces, hard coverand built upareas.Mercuryconcentrationinthesamesamples is attheICRCL threshold value for domesticgardens and allotments. Asharsenic, cadmium, lead, copper and zinc content exceeds the Dutch action level for contaminated land, whereaschromium content exceeds the Dutch trigger level.
- Arup RothwellConsultingEngineers(1999).Results are presented in Table 1-4oftheir report. Similar results as for number (2): arsenic, cadmium, lead, copper, and zinc concentrations of the ash material exceed the ICRCL levels for domestic gardens and allotments. Cyanide, phenols andPAHs are belowtheICRCL thresholds.
O v e r all, it appears that the concentration of several contaminants including arsenic, cadmium, lead,
and chromium at the St Helier waterfront site exceed the Soil Guideline Values set by the UK Environment Agency (EA) for residential use of contaminated land, based on results of the CLEA model (see http://www.defra.gov.uk/environment/landliability/pubs.htm). Mercury does not appear to exceed the Soil Guideline Value for residential use. Not all contaminants potentially hazardous to human health present in the St Helier contaminated site may have been evaluated by the surveys conducted so far, and the comparison with EA soil guideline values has been reported here only for the chemicals included in the available surveys.
19. H o w many samples have been taken?
- Warr enSpringLaboratory (1992). Only incinerator ash.
- WRc EnvironmentalManagement(1995).Ash-like material (probably combinedbottom and fly ash) was found in 15outof32 trials pits onsite
- Arup RothwellConsultingEngineers(1999). 8 boreholesonsite
- W h o has taken thesamples? S e e a bove
- H o w were the samples taken? (Sampling strategy?)
- Warr enSpringLaboratory (1992). Not applicable, as they only tested incinerator ash.
- WRc EnvironmentalManagement (1995). Complex strategy (see their report, page19).
- Arup RothwellConsultingEngineers(1999).
- W h ere have the samples been sent foranalysis?(UKAS accredited laboratory?)
N o d etails on UKAS accreditation available, though it is likely that (1) was accredited
INITIAL HAZARD & RISK ASSESSMENT
- H a vethere been any complaintsof health problems that maybe associated with exposure to the chemical (s)?
N o co mplaints have been received by the Health and Social Service Committee either from workers on the
site or residents nearby.
- Is there a pathwaybetween the sourceof the contaminationand any potential targets (human,animal etc.)?
T h e re are four potential pathways:
direct contact between humans and contaminated soil on the site
bioaccumulation of dioxins and mercury in the foodchain, and possible human exposure via the food chain
Migration of dioxins and metals to the sea and impact on sea life. This is the major potential effect of groundwater flows described in section 11
Migration of dioxins and metals to fresh water and possible human exposure via water. It is unclear how much this pathway can in fact be confirmed, but the potential is implicit in the
groundwater flows described in section 11.
- Is further sampling,environmentalor biological, required?
T h e concentration of dioxins and furans, arsenic, lead, cadmium, lead, copper, zinc, chromium and
mercury in much of the ash at the site is of concern for human, animal, and ecosystem health. Further sampling is considered in section 28 as part of the overall steps suggested to prevent further contamination.
- W h at (if any)immediate action is required? (Evacuation etc.)
T h e s ite is not inhabited at present. Concerns have been expressed about possible exposure of workers at
the building sites in this area. In meetings with two of the building sites management teams, it was reported that the workers at the site are aware of the potential risk to their health, and a programme of education of the workforce to prevent exposure to contaminated ash has been implemented by the contractors (Cameron's Building Contractors). There are no residents on the site at present. It is difficult to estimate the health hazards to residents near the site in the absence of a survey assessing the fate of the leachate and its content; however such potential hazard ought not be ignored. The suggested actions are listed in the previous section.
- C a n the chemicalbe controlled/contained immediately?
T h e basement of the building developments appears to have been constructed to minimise potential
exposure to future residents via direct contact with contaminated soil. However, all this 14 hectares area still contains large amounts of incinerator ash, much of which is heavily contaminated. The ground surrounding the building site, and the remaining of the 14 hectares of the area
G r o unds immediately surrounding the building development. It is reported that about 1 m of
uncontaminated fill material separates contaminated ash from the surface of the site. This will need to be checked and documented as part of the survey suggested as short-term action in section 28. A fresh clean top soil cover of 60 cm has been suggested by Arup Engineering Consultants as additional protection above that (please refer to correspondence between S. Smith of the Health and Social Service Committee and Arup Engineering Consultants). The adequacy of such intervention for human health protection is questionable in the light of recommendations by experts, for example, the International Ash Working Group describes 4 types of disposal practice of municipal solid waste incinerator ash:
- total containment,
- leachate containment and collection,
- controlled contaminantrelease,and
- unrestricted contaminants release.
T h i s working group does not recommend the last of these options as adequate for optimal hazard
containment (see attached copy of chapter describing this). It would appear that the past practice at the St. Helier site may be classified as unrestricted contaminants release. It would seem desirable that the future management of ash remaining there would match the requirements of the International Ash Working Group or similar recommendations of best practice by qualified technical experts.
28. W h at steps need to be taken to prevent further contamination? (Short and long term considerations)
A n i ntervention is needed to manage the dispersion of contaminants from the site towards the
surface (built and landscape areas developed on the marina), the sea, the foodchain, and the freshwater.
A s C IRS is a service providing health and not engineering advice, CIRS is not qualified to suggest specific technical (engineering) details of such intervention, and our suggestions in this section have
to be seen in the light of any specific further findings describing the location of the hazardous materials contained in incinerator ash at the site, their fate as content of leachate from the site, and
interventions planned for containment of the mentioned chemicals. This is because all of the above would
affect the extent of the potential public health implications. Within these limitations, CIRS suggests that a survey is desirable to assess the actual extent of the protection afforded by interventions so far, and the need for further intervention (see "in the short term" below). CIRS also suggests that a monitoring programme would be necessary to evaluate the effectiveness of any planned interventions (see "in the medium-long term" below). Therefore CIRS recommends:
- In the short term: A survey to describe the hydrogeology at and nearby the site and the distribution and chemical forms of the contaminants in the soil and the water leaching from it at the present time. This seems justified as the amount of ash left in site after the currently ongoing building workis likely to be considerable, and the chemical form of the contaminantsandthedistribution of the leachate havenot been clearly characterisedsofar. In addition, a fresh survey could document changes in contaminant concentrations comparedto the 1995 surveyas a consequenceof the boththe recent buildingworkandthe effect ofwaterexchanges in andunder the site.Dioxinsandfuransas well asmetalsshould be considered for such survey.
- In the medium and long term: a programme to monitor the concentrations of several key chemicals in terms of potential impact on human health at and near the site.At the site visit on 22 May 2002, CIRSrecommended a programmeof testing for dioxins,arsenic,cadmium and lead.Inthe light ofthe evidence presented in the published reports summarisedhere, it may be relevant to add copper, zinc, chromium and mercury to that list. However, a strategy for further sampling should be defined only after samplingphase (1) has been conducted,so that a monitoringprogrammemaybeinformedbythefindingsof a more complete and current survey.
ACTIONS
REFER TO ABOVE SECTION 28.
SITE VISIT REPORT WRITTEN BY G i o v anni Leonardi DATE 1 0 J u n e 2002, revised 7 August 2002
[1]
AOD (Above Ordnance datum) – Land levels are measured relative to the average sea level at Newlyn Cornwall. This average level is referred to Ordnance Datum'. Contours on Ordnance Survey maps of the UK show heights above Ordnance Datum.