REPORT ON A GROUND INVESTIGATION NEW M4 PROJECT MAGOR TO CASTLETON - SECOND PRELIMINARY GROUND AND CHEMICAL INVESTIGATION ADDENDUM

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2 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION REPORT QUALITY ASSURANCE SHEET Title: REPORT ON A GROUND INVESTIGATION AT NEW M4 PROJECT MAGOR TO CASTLETON - SECOND PRELIMINARY GROUND AND CHEMICAL INVESTIGATION ADDENDUM Report Description: Date: Written By: Checked By: Approved By: Status: Draft Factual 27/05/2008 I Swain P. A. Rodgers M.J. Baldwin Final Factual 16/06/2008 I. Swain P.A. Rodgers M.J. Baldwin Distribution: Ove Arup Ltd :Internal Copy The report is not to be used for contractual or engineering purposes unless this sheet is signed where indicated by both the originator of the report and the approver, and the report is designated Final on this report quality assurance sheet. Opinions and interpretations expressed in the report are outside the scope of UKAS accreditation. This report has been prepared for the sole internal use and reliance of the naed Eployer. This report should not be relied upon or transferred to any other parties without the express written authorisation of NHSED. If an unauthorised third party coes into possession of the report they rely on it at their peril and NHSED owes the no duty of care and skill. Report Version No. SI FR 1.04 Issue Date 30/01/ /06/2008 Page 1 of 7

3 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION GROUND INVESTIGATION: M4 SECOND PRELIMINARY GROUND INVESTIGATION REPORT CONTENTS 1.0 INTRODUCTION PURPOSE, SCOPE AND REPORT FORMAT Purpose Scope of Work Report Forat DESK STUDY INFORMATION Scope of Study FIELDWORK Scope of Fieldwork Groundwater Monitoring and Sapling In situ Testing LABORATORY TESTING Scope of Testing Containation Testing RESULTS OF THE INVESTIGATION Scope of Coentary...5 REPORT REFERENCES... 7 LIST OF FIGURES Figure 1-4 Groundwater Readings for installations Section B Figure 5-34 Records Of In-Situ Water Monitoring Section B SUPPORTING FACTUAL DATA SECTION A: NOTES ON FIELDWORK, LOGGING AND LABORATORY TESTING Notes on Fieldwork Procedures Assessent of Aggressive Ground and Groundwater Conditions SECTION B: EXPLORATORY HOLE RECORDS AND FIELD DATA Groundwater/Gas Monitoring/Sapling Results In Situ Testing Records SECTION C: LABORATORY TEST RESULTS Laboratory Test Data Key Sheet Containation Test Results 16/06/2008 Page 2 of 7

4 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION 1.0 INTRODUCTION In October 2007 Norwest Holst Liited - Soil Engineering Division (NHSED) were instructed by Ove Arup Partners Ltd (The Engineer) acting for and on behalf of Transport Wales, The Welsh Assebly Governent (The Eployer) to carry out a ground investigation between Magor and Castleton to the south of Newport. It is proposed to construct a new section of the M4 otorway fro Junction 29 (Castleton) to Junction 23 (Magor) to the south of Newport to reduce congestion on the existing M4 to the north of Newport. The investigation coprised the foration of cable percussion and rotary boreholes, together with trial pitting, window sapling, cone penetration testing and in situ shear vane testing. This addendu factual report presents the results of post site water onitoring, sapling and laboratory containation testing. The onitoring was carried out between 30 th January and 18 th April PURPOSE, SCOPE AND REPORT FORMAT 2.1 Purpose The purpose of this investigation was to deterine groundwater conditions and establish containation levels at selected positions along the proposed route. This inforation was to be obtained fro a cobination of onitoring, in-situ testing and laboratory containation testing. Additional containation testing was also carried out on five soil saples obtained during the ain investigation following the results of the initial testing. 2.2 Scope of Work The brief for this factual addendu report coprised the following ites: 1. To onitor and saple on site installations. 2. Carry out in-situ testing in on site installations 3. To undertake laboratory tests on soil and groundwater saples recovered fro exploratory holes. This Addendu report should be read in conjunction with the ain factual report referenced on page 7 of the report The sources of inforation used in the copilation of this report are detailed in the list of references on page Report Forat This report is presented in the following forat: Factual inforation coprising: - Description of fieldwork In situ testing results Monitoring results Laboratory test results 16/06/2008 Page 3 of 7

5 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION 3.0 DESK STUDY INFORMATION 3.1 Scope of Study No foral desk study was requested by the Engineer for this investigation. For details of site location and description and site geology as ascertained fro published aps, reference should be ade to the full factual report referenced on page 7 of this report. 4.0 FIELDWORK 4.1 Scope of Fieldwork The scope of the fieldwork was specified by the Engineer and was undertaken in general accordance with Eurocode 7 Part 2 (BS EN : 2007) and where there is no conflict also with BS5930: In accordance with the specification and drawings provided by the Engineer, NHSED were required to onitor exploratory hole installations and to undertake in-situ testing and sapling regie. Groundwater level onitoring and in-situ was carried out in selected boreholes installations as instructed by the Engineer. 4.2 Groundwater Monitoring and Sapling In accordance with the Engineer s instruction onitoring of groundwater in borehole installations was carried out at approxiately fortnightly intervals for three onths after copletion of the site works. Two rounds of water sapling were also undertaken at intervals instructed by the engineer, all holes were developed prior to sapling. During developent in-situ testing was carried. The results of the groundwater onitoring are presented in Section B of this report and the results of the groundwater testing are presented in Section C of this report. 4.3 In situ Testing In accordance with the engineers instruction in-situ water onitoring was carried out for ph, Teperature, Dissolved Oxygen and Electrical Conductivity during developent. Readings were taken following well purging at 0.5, 1, 2 and 3 ties well volues. The results of this in-situ testing are presented in Section B of this report 5.0 LABORATORY TESTING 5.1 Scope of Testing All cheical (containation) testing was scheduled by the Engineer. The scope of the testing was required to establish potential groundwater and soil containation levels at various locations on site. 5.2 Containation Testing A prograe of containation testing was scheduled by the Engineer. Soil and water saples were sent to ALcontrol Geoche of Chester, which is registered as UKAS Testing laboratory No Testing was carried out in accordance with a cobination of the Methods for Exaination of Water and Associated Materials (the Blue Book ) published by H.M.S.O., docuented inhouse ethods and other published ethods, to deterine the presence of the analytes listed on page 5. 16/06/2008 Page 4 of 7

6 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION SOIL SUITE LEACHATE SUITE Chroiu Hexvalent Arsenic Cadiu Chroiu Copper Lead Mercury Nickel Seleniu Zinc Antiony Bariu Boron Molybdenu Cyanide WATER SUITE WATER SUITE ph Value BOD COD Alkalinity Hardness Arsenic (dissolved) Cadiu (Total) Chroiu (dissolved) Chroiu Hexavalent Copper (dissolved) Lead (dissolved) Mercury (Total) Nickel (dissolved) Seleniu (dissolved) Zinc (Total) Calciu (dissolved) Vanadiu (dissolved) Berylliu (dissolved) Iron (dissolved) Magnesiu (dissolved) Manganese (dissolved) Sodiu (dissolved) Potassiu (dissolved) Aonial nitrogen Chlorides Cyanide total Cyanide Ferro Cyanide Ferri Cyanide Free Thiocyanates Sulphates Sulphides Nitrate Phenols (total) VOC SVOC TPH by GC FID The results of the containation testing are presented in Section C of this report. 6.0 RESULTS OF THE INVESTIGATION 6.1 Scope of Coentary The results of the onitoring and in-situ testing are presented in Section B of this report and the results of the containation testing are presented in Section C of this report. 16/06/2008 Page 5 of 7

7 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION For and on behalf of Norwest Holst Liited - Soil Engineering Division I Swain Senior Geotechnical Engineer P.A. Rodgers Regional Manager 16/06/2008 Page 6 of 7

8 Project No: F15056 Docuent No. F01 M4 - SECOND PRELIMINARY GROUND INVESTIGATION REPORT REFERENCES BRE Special Digest 1: (2005): Concrete in Aggressive Ground. BRE Construction Division. BS 5930: (1999): Code of Practice for Site Investigation. British Standards Institution. BS 1377: (1990): Parts 1 to 9: Methods of Test for Soils For Civil Engineering Purposes. British Standards Institution. BS EN : (2007): Eurocode 7 Geotechnical Design Part 2: Ground Investigation and Testing BS EN ISO : (2002): Geotechnical Investigation and testing Identification and Classification of Soil Part 1: Identification and Description. BS EN ISO : (2004): Geotechnical Investigation and testing Identification and Classification of Soil Part 2: Principles for a Classification BS En ISO : (2003): Geotechnical Investigations and testing Identification and Classification of Rock Part 1: Identification and description. BS EN ISO : (2005): Geotechnical Investigation and Testing Field Testing Part 3: Standard Penetration Test. Report on a ground investigation at new M4 project Magor to Castleton Second Preliinary Ground And Cheical investigation, F15056 (2008) 16/06/2008 Page 7 of 7

9 SUPPORTING FACTUAL DATA SECTION A Notes on Fieldwork, Logging and Laboratory Testing FIELDWORK PROCEDURES

10 SECTION A 1: FIELDWORK PROCEDURES 1.0 CABLE PERCUSSION BORING TECHNIQUES Unless otherwise stated the light cable percussion technique of soft ground boring has been eployed in the foration of boreholes for this contract. In cohesive soils a clay cutter has been used to advance the boreholes whilst in granular deposits a shell has been eployed. The cobination of clay cutter and shell bring up disturbed aterial which is generally sufficiently representative to perit identification of the strata. Whilst these particular techniques allow the axiu data to be obtained on strata conditions, a degree of ixing of soe layered soils (e.g thin layers of coarse and fine granular aterial) is inevitable. 2.0 DYNAMIC SAMPLING As an alternative to cable percussion boring, NHSED eploys a nuber of techniques for the sapling of soils. The ost coon alternative techniques coprise soe for of dynaic sapling syste which involves sapling tubes being driven into the ground by eans of a sliding weight. Window sapling techniques for the ost coon type of dynaic sapling and typically coprises 1.0 long steel cylinders with elongated windows. These are driven to the required depth by the use of a percussive haer. In the windowless ode a plastic liner can be placed in the steel cylinders such that effectively continuous sapling can be undertaken. This ethod of sapling only produces Class 2 or 3 saples which are generally not suitable for any for of laboratory achine testing. 3.0 ROUTINE SAMPLING In the UK "undisturbed" saples of predoinantly cohesive soils are generally obtained in a 102 diaeter open drive sapler as defined in the British Standard Code of Practice BS 5930 (1999) (ref 01). The British Standard notes however that conventional and lined open drive saplers do not produce Class 1 saples for laboratory testing and for this reason NHSED has incorporated a taper into the cutting shoe of all its lined open drive saplers. This taper significantly reduces saple disturbance and for the ajority of cohesive soils allows saples to be recovered which are suitable for laboratory achine testing. However it should be appreciated that no saple can be truly undisturbed when sapled in this anner and the effects of disturbance can best be seen in lainated clays in which the lainations ay be turned downward on the argins of the saple due to the driving effects of the sapler. Where it is necessary to iniise the effects of saple disturbance e.g in sensitive clays and silts, alternative sapling techniques ay be specified and where used, are described in the report text. In granular deposits and ixed cohesive-granular deposits where it is not possible to recover undisturbed saples, either large or sall disturbed saples are norally obtained. The size of these saples are in accordance with the requireents of BS 5930 (1999) whilst the frequency of sapling is unique to this contract. Page 1 of 4

11 SECTION A 1: FIELDWORK PROCEDURES It is iportant to note that the nuber of blows taken to drive any kind of sapling tube is not necessarily indicative of the strength of the aterial being sapled. For this reason NHSED recoends that no attept is ade to correlate such blows with the consistency of cohesive strata. 4.0 ROTARY DRILLING Where rotary open hole drilling techniques have been eployed it is iportant to note that descriptions of the strata encountered are generally solely based on the forean drillers observations of cuttings and drill flush returns. Whilst such techniques can provide useful inforation in certain ground conditions it should be recognised that an accurate deterination of subsurface rock strata can only be obtained by rotary coring techniques. An exaination of rock cores obtained by rotary drilling generally enables bedding planes, fissuring and consistency to be observed but does not necessarily reveal the presence of vertical fissures or joints. Details of the strata encountered are given on the borehole log along with the geologist s assessent of Total Core Recovery (TCR), Solid Core Recovery (SCR) and Rock Quality Designation (RQD) each expressed as a percentage of the individual core runs. When appropriate the Fracture Index (FI) or Fracture Spacing (If) is also given on the logs and represents respectively the nuber of natural fractures per etre run of core for core that has a siilar intensity of fracturing, or the iniu, average and axiu spacing of such natural fractures over an arbitrary length of core of siilar intensity of fracturing. The sybols and abbreviations used on the rotary borehole logs are explained on the exploratory hole legend and notation sheet that precedes the exploratory hole records. It is considered however that the eaning of the abbreviations NI and NA (not shown in the key) needs further clarification. NI denotes aterial recovered non intact and applies to aterial that has nuerous fractures or incipient fractures and which is either naturally broken up or which becoes broken up by drilling activities. The result in both cases is that the core is recovered in a highly fragented state, generally as a gravel. The ter NA is the abbreviation for not applicable and refers to any aterials to which deterination of a fracture index would be inappropriate, i.e for clay bands. Where significant core loss (>300) has occurred, it is NHSED general policy to insert a separate stratu on the log to coincide with the inferred zone of core loss. Unless there is good evidence as to the rock (or soil) type that has been lost, the legend colun is left blank. For zones of inferred ine workings, an appropriate legend is used and this together with all the legends used on the logs is shown on the log notation sheet that precedes the exploratory logs in the report. A suary of logging ethodology for rock strata and core easureents is given in Section A5: Terinology used in the Description and Classification of Rocks. Page 2 of 4

12 SECTION A 1: FIELDWORK PROCEDURES 5.0 IN SITU DYNAMIC PENETRATION TESTS Standard or Cone Penetration Testing (T/CPT) is generally eployed where undisturbed saples cannot be obtained e.g in granular soils, fill and rock etc, in order to obtain an indication of the in situ density, copaction or hardness. Inherent difficulties are present in obtaining true T or CPT "N" values in water bearing fine grained granular deposits and careful consideration of the test technique and groundwater conditions are necessary before test results are used for design purposes. The full procedure for carrying out the Standard Penetration Test (T) is given in BS EN ISO (2005) (ref 02). Essentially the test consists of driving a 50 external diaeter split barrel sapler into the soil using a 63.5kg haer dropping 760. The penetration resistance is expressed as the nuber of blows required to obtain 300 penetration below an initial seating drive of 150 through any disturbed ground at the botto of the borehole. The nuber of blows for the 300 test drive penetration is recorded on the borehole logs as the "N" value. A full record of the nuber of blows required to drive the sapler at 75 intervals throughout the total 450 drive is also tabulated along with the groundwater level at the tie of test. It is iportant to distinguish how the blow count relates to the penetration of the sapler and this ay be achieved in the following anner: (i) (ii) Where the test drive is terinated at 50 blows the nuber of blows for the partial test drive (usually 50) and the penetration of the sapler within the test drive are recorded. An approxiate "N" value ay be obtained by linear extrapolation of the nuber of blows recorded for the partial test drive. If the total penetration is equal to or less than the 150 seating drive then the nuber of blows (usually 25) and the depth of penetration within the initial seating penetration are recorded on the borehole logs. The "N" value obtained fro the Standard Penetration Test ay be used to assess the relative density of sands and gravels in accordance with Clause of BS 5930 (1999) (ref 01), as shown in table 1: TABLE 1: DETERMINATION OF RELATIVE DENSITY FROM PENETRATION TESTS (fro BS 5930) Ter T N-Value: Blows/300 Penetration Very Loose 0-4 Loose 4-10 Mediu Dense Dense Very Dense Over 50 Standard Penetration Testing ay also be perfored in very stiff/hard clays in which it would be difficult to obtain undisturbed saples. In such cases the T "N" values ay be used for design purposes based on correlations between "N" value and various soil paraeters such as those proposed by Stroud and Butler (1975) (ref 03). Page 3 of 4

13 SECTION A 1: FIELDWORK PROCEDURES 6.0 GROUNDWATER The groundwater conditions entered on the exploratory hole records are those encountered at the tie of the investigation. These however, ay not represent the actual conditions or those which ay apply in large excavations. The noral rate of boring does not always perit the recording of an equilibriu water level for any one water strike, particularly because the entry of water into a borehole ay be reduced or even eliinated due to casing off a water bearing layer or due to a skin being fored on the borehole wall by the drilling tools. It should also be noted that groundwater conditions ay vary seasonally and/or tidally and that the water levels as shown at the tie of investigation should not necessarily be taken as being constant because they ay be subject to such fluctuations. More accurate inforation on groundwater conditions can be obtained fro exploratory hole installations such as piezoeters and standpipes. Norally three or four onitoring visits are required at the site to provide this inforation. References 01) BS 5930 (1999) Code of Practice for Site Investigation. British Standards Institution. 02) BS EN ISO (2005). Geotechnical Investigation and Testing - Field Testing - Part 3: Standard Penetration Test. 03) Stroud, M.A, Butler, F.G (April 1975) The Standard Penetration Test and the Engineering Properties of Glacial Materials. The Engineering Behaviour of Glacial Materials Proc. of Syp. Page 4 of 4

14 SUPPORTING FACTUAL DATA SECTION A Notes on Fieldwork, Logging and Laboratory Testing ASSESSMENT OF AGGRESSIVE GROUND AND GROUNDWATER CONDITIONS

15 SECTION A 6: ASSESSMENT OF AGGRESSIVE GROUND AND GROUNDWATER CONDITIONS Certain ground and groundwater conditions ay be described as aggressive depending on their cheical coposition which is related to previous industrial use. Where foundations are proposed to be constructed on industrial sites or on landfill sites in which the ground or groundwater ay be containated with cheical waste, detailed consideration needs to be given to both the ethod of investigation and the severity of ground and groundwater conditions with respect to construction aterials. For such sites it will usually be necessary to undertake a full cheical analysis in order to identify the potentially aggressive copounds. On sites where new concrete foundations are to be constructed in natural ground it is usually only necessary to exaine the sulfate content and ph level of the ground. The sulfate content of soils varies widely and can range fro being virtually absent to extreely high concentrations in crystals such as gypsu. In between these two extrees sulfate ay be disseinated throughout a soil or ay be present in discrete bands or lenses. Because of this wide variation in the sulfate content of soils, the ost reliable indication of possible aggressive conditions can be obtained by testing representative saples of groundwater. In order to take account of natural variations in the distribution of sulfates in the ground, saples should be taken at a nuber of locations that are well spaced across the site and at different depths. The ethods for the deterination of total sulfate of soil and the sulfate content of groundwater and 2:1 aqueous soil extracts are given in various specifications including BS 1377 (1990) Part 3: Section 5 (ref 01). The results of tests perfored in accordance with BS 1377 yield results which are expressed as percentage of dry weight retained or graes/litre SO 3. Tests perfored in accordance with other specifications however, tend to express results as SO 4. The classification of natural sulfate conditions is based on BRE Special Digest 1 (2005) (ref 02). This digest akes ost use of sulfate values expressed as illigraes/litre SO4. In order to convert the results expressed as SO 3 (BS 1377) to SO 4 (BRE Special Digest 1) it is necessary to apply a ultiplication factor of 1.2. In the following discussion of sulfate conditions values given in the tables are expressed in ters of SO 4. The current approach to the classification of aggressive ground conditions given in BRE Special Digest 1 is based on the Aggressive Cheical Environent for Concrete (ACEC). This takes into account the type of site, sulfate concentration and ground water acidity and obility. Different site assessent procedures are used for natural ground, for brownfield sites that contain industrial waste and pyritic ground. The reactions of sulfates in the presence of other ions, notably carbonate and agnesiu are also taken into account. As with the previous Special Digest 1, there are five design sulfate classes (designated DS1 to DS5) for the site, although in the current digest natural ground and brownfield sites are now covered by separate tables. More subdivision of ACEC Class is given in the table for brownfield locations and this reflects the coplexity of conditions that often apply. In general when the results of sulfate deterinations are assessed ephasis ust be given to the saples which fall in the higher classes. Therefore if eight out of ten saples are found to be non aggressive and fall within Class DS1 and the reainder fall within Class DS2 it will be necessary to adopt the precautions appropriate to Class DS2 conditions for the whole site. The current digest differentiates between natural ground locations and brownfield locations. Table 1 on page 2 is reproduced fro the digest and deals with natural ground locations. Page 1 of 4

16 SECTION A 6: ASSESSMENT OF AGGRESSIVE GROUND AND GROUNDWATER CONDITIONS TABLE 1: AGGRESSIVE CHEMICAL ENVIRONMENT FOR CONCRETE (ACEC) CLASSIFICATION FOR NATURAL GROUND LOCATIONS (a) (Fro BRE Special Digest 1) SULFATE GROUNDWATER DESIGN SULFATE 2:1 WATER/SOIL GROUNDWATER TOTAL STATIC MOBILE ACEC CLASS FOR EXTRACT (b) POTENTIAL WATER WATER CLASS FOR LOCATION SULFATE (c) LOCATION (SO 4 g/l) (SO 4 g/l) (SO 4 %) (ph) (ph) DS-1 <500 <400 <0.24 >2.5 AC-1s >5.5 (d) AC-1 (d) AC-2z DS >3.5 AC-1s >5.5 AC AC-2s AC-3z DS >3.5 AC-2s >5.5 AC AC-3s AC-4 DS >3.5 AC-3s >5.5 AC AC-4s AC-5 DS-5 >6000 >6000 >2.4 >3.5 AC-4s >2.5 AC-5 NOTES a) Applies to locations on sites that coprise either undisturbed ground that is in its natural state or clean fill derived fro such ground. b) The liits of Design Sulfate Classes based on 2:1 water/soil extracts have been lowered relative to previous digests. c) Applies only to locations where concrete will be exposed to sulphate ions (SO4) which ay result fro the oxidation of sulfides (eg pyrite) following ground disturbance. d) For flowing water that is potentially aggressive to concrete owing to high purity or an aggressive carbon dioxide level greater than 15g/l, increase the ACEC Class to AC-2z. Explanation of suffix sybols to ACEC Class Suffix s indicates that the water has been classified as static Concrete placed in a ACEC Class that includes the suffix z priarily have to resist acid conditions and ay be ade with any of the ceents listed in Table D2 in the Digest. Additional testing is required for those natural sites that contain pryrite. In particular it is essential to take account of the total potential sulfate content which ight result fro oxidation following ground disturbance. On such sites it is necessary to deterine total sulfate content (AS% S0 4 ), total sulfur (TS%). The total potential sulfate is then deterined fro TPS%SO 4 =3.0 x TS%S. Finally the aount of oxidisable sulfides (OS as %SO 4 ) is deterined by subtracting the acid soluble sulfates(as%s0 4 ) fro the total potential sulfate content: OS%SO 4 = TPS%SO 4 AS%S0 4. It is iportant to note that this testing is in addition to and not instead of the standard sulfate deterination testing. Unless the site can be deonstrated to coprise natural ground, Table 2 for brownfield locations ust be used in all assessents for the design of concrete. It should be noted that the effects of the agnesiu ion becoe relevant to concrete design for certain Design Sulfate Classes. Page 2 of 4

17 SECTION A 6: ASSESSMENT OF AGGRESSIVE GROUND AND GROUNDWATER CONDITIONS TABLE 2: AGGRESSIVE CHEMICAL ENVIRONMENT FOR CONCRETE (ACEC) CLASSIFICATION FOR BROWNFIELD LOCATIONS (a) (Fro BRE Special Digest 1) SULFATE AND MAGNESIUM GROUNDWATER DESIGN SULFATE 2:1 WATER/SOIL GROUNDWATER TOTAL STATIC MOBILE ACEC CLASS FOR EXTRACT (b) POTENTIAL WATER WATER CLASS FOR LOCATION SULFATE (c) LOCATION (SO 4 g/l) (Mg g/l) (SO 4 g/l) (Mg g/l) (SO 4 %) (ph) (d) (ph) (d) DS-1 <500 - <400 - <0.24 >2.5 AC-1s >6.5 (d) AC AC-2z AC-3z AC-4z DS >5.5 AC-1s >6.5 AC AC-2s AC-3z AC-4z AC-5z DS >5.5 AC-2s >6.5 AC AC-3s AC AC-5 DS < < >5.5 AC-3s >6.5 AC AC-4s AC-5 DS >1200 (e) >1000 (e) >5.5 AC-3s >6.5 AC AC-4s AC-5 DS-5 >6000 <1200 >6000 <1000 >2.4 >5.5 AC-4s >2.5 AC-5 DS-5 >6000 >1200 (e) >6000 >1000 (e) >2.4 >5.5 AC-4s >2.5 AC-5 NOTES a) Brownfield locations are those sites or parts of sites that ight contain cheical residues produced by industrial processes. b) The liits of Design Sulfate Classes based on 2:1 water/soil extracts have been lowered relative to previous digests. c) Applies only to locations where concrete will be exposed to sulfate ions (SO4) which ay result fro the oxidation of sulfides (eg pyrite) following ground disturbance. d) An additional account is taken of hydrochloric and nitric acids by adjustent to sulfate content e) The liit on water soluble agnesiu does not apply to brackish groundwater (chloride content between 12000g/l and 17000g/l). This allows to be oitted fro the relevant ACEC classification. Sea water (chloride about 18000g/l) and stronger brines are not covered by this table. Explanation of suffix sybols to ACEC Class Suffix s indicates that the water has been classified as static Concrete placed in ACEC Classes that include the suffix z priarily have to resist acid conditions and ay be ade with any of the ceents listed in Table D2 in the Digest. Suffix relates to the higher levels of agnesiu in Design Sulfate Classes 4 and 5. Page 3 of 4

18 SECTION A 6: ASSESSMENT OF AGGRESSIVE GROUND AND GROUNDWATER CONDITIONS The ph value of groundwater provides a crude easure of the potential aggressiveness due to the presence of organic acids. The standard procedure for easuring the acidity of soils and groundwater is the electroetric ethod using a ph eter and is described in BS 1377 (1990) Part 3: Section 5. The ph value of pure water is 7.0 and the presence of acid substances will yield results with values less than 7. It should be noted however that the ph of ost natural waters depends ainly on the dissolved carbon dioxide content and therefore lies between ph values of 6.5 and 8.5. It is generally accepted that soils or groundwater with ph values in the range 6 to 9 ay be classified as near neutral. It should be noted that the ph value of soil and groundwater can change with tie and it is therefore necessary to carry out testing on fresh saples of soil or water. The ph value of the soil or groundwater also needs to be taken into consideration when the recorded sulfate content is borderline between two classes or approaches the upper liit of a given class. In these circustances both the ph value and the obility of the groundwater needs to be assessed and where doubt exists, the saple should be placed in the ore severe class of the sulfate classification. This general approach ay be justified on the grounds that the acids present will tend to break down the concrete surface and therefore ake it ore susceptible to sulfate attack. This will be especially so if the saple contains large aounts of sulfides since these can be converted to sulfuric acid. Organic acids are often found in peaty or arshy soils in which the ph value is below 6.0. In such soils it will be necessary to take specific precautions to protect any concrete which would be exposed to organic acids. The recoended precautionary easures outlined in Tolinson (2001) (ref 03) could be followed. In all cases where ineral acids are present the groundwater is likely to be aggressive with regard to foundation concrete and in these circustances the recoendations given in BRE Special Digest 1 Part C will need to be followed. Apart fro acid groundwater, the effects of static and obile ground water tables are taken into account in BRE Special Digest 1 in Box C9 and the increental rules in this table need to be viewed in relation to Tables C1 and C2 in the Digest. Alkaline groundwater is not generally considered aggressive to concrete unless present in high concentrations. Unless the aggregate used in foundation concrete is of a reactive type, ph values of groundwater up to ph = 14 need not be considered as probleatic. References 01) BS 1377 (1990) Methods of Test for Soils for Civil Engineering Purposes. Part 3: Cheical and Electrocheical Tests, British Standards Institution. 02) Building Research Establishent (2005) Concrete in Aggressive Ground. BRE Special Digest 1. Building Research Station, Garston 03) Tolinson M.J (2001) Foundation Design and Construction. 7th Edition, Pearson, Prentice Hall. Page 4 of 4

19 SUPPORTING FACTUAL DATA SECTION B Exploratory Hole Records and Field Data GROUNDWATER / GAS MONITORING / SAMPLING RESULTS

20 Project Nae New M4 Preliinary Ground Investigation Project No. F15056 Groundwater Readings For Installations Engineer Ove Arup & Partners Ltd Fig no. Client NOTES: COMMENTS Transport Wales, Welsh Assebly 01 Governent IE=Piezoeter, =Standpipe For ultiple installations, use different Installation IDs. For piezoeters installation depth = tip depth. For standpipes = base of pipe SBHM01 RC installation extends 0.50 above ground level. - sybol indicates water level is above GL All groundwater levels are recorded fro ground level Installation Details Recorded Water Level Exploratory Hole ID Type Depth ID Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading SBHC01 RC IE /01/ : /02/ : /03/ : SBHD03 CP IE /01/ : /02/ : /03/ : SBHD05 RC IE /01/ : /02/ : /03/ : SBHD06 RC /01/ : /02/ : /03/ : SBHD08 RC IE /01/ : /02/ : /03/ : SBHE02RD IE /01/ : /02/ : /03/ : SBHE04 RC IE /01/ : /02/ : /03/ : SBHF01 RC IE /01/ : /02/ : /03/ : SBHF02A CP IE /02/ : /02/ : /03/ : SBHF03 RC IE /01/ : /02/ : /03/ : SBHH01 RC IE /01/ : /02/ : /03/ : SBHH02 RC IE /01/ : /02/ : /03/ : SBHH05 RC IE /01/ : /02/ : /03/ : SBHH06 CP /01/ : /02/ : /03/ : SBHH07A RC IE /01/ : /02/ : /03/ : SBHJ01 CP /02/ : /02/ : /03/ : SBHJ03 CP /02/ : /02/ : /03/ : SBHJ /02/ : /02/ :: /03/ : SBHJ /02/ : /02/ : /03/ : SBHJ06 CP /02/ : /02/ : /03/ : SBHJ07 CP /02/ : /02/ : /03/ : SBHJ08A CP /02/ : /02/ : /03/ : SBHJ09 CP /02/ : /02/ : /03/ : SBHJ10 CP /02/ : /02/ : /03/ : SBHK01 CP /02/ : /02/ : /03/ : SBHK02 CP /02/ : /02/ : /03/ : SBHK03 CP /02/ : /02/ : /03/ : SBHK04 CP /02/ : /02/ : /03/ : SBHL02 RC IE /02/ : /02/ : /03/ : SBHL03 RC IE /01/ : /02/ : /03/ : SBHM01 RC IE /01/ : /02/ : /03/ : SBHM02 RC IE /02/ : /02/ : /03/ : SBHN01A RC IE /02/ : /02/ : /03/ : SBHN02 RC IE /01/ : /02/ : /03/ : SBHN03 RC IE /01/ : /02/ : /03/ : SBHN04 RC IE /01/2008 Recorded by: S Davis Checked by: I Swain Approved by: I Swain Date: 30/01/08-07/03/08 Date: 16/04/2008 Date: 17/04/2008 For No. SI GWR Revision No Issue Date 07/01/ : /02/ :42 DRY 07/03/ :45 DRY

21 Project Nae New M4 Preliinary Ground Investigation Project No. F15056 Groundwater Readings For Installations Engineer Ove Arup & Partners Ltd Fig no. Client NOTES: COMMENTS Transport Wales, Welsh Assebly Governent IE=Piezoeter, =Standpipe For ultiple installations, use different Installation IDs. For piezoeters installation depth = tip depth. For standpipes = base of pipe Unable to locate LGBH05 and RBBH08. LGBH06 was blocked All groundwater levels are recorded fro ground level Installation Details Recorded Water Level 02 Exploratory Hole ID Type Depth ID Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading SBHP01 RC IE /01/ :50 DRY 26/02/ :12 DRY 07/03/ :35 DRY SBHP02 RC IE /01/ : /02/ : /03/ : SBHP03 RC IE /01/ : /02/ : /03/ : SBHQ01 RC IE /01/ : /02/ : /03/ : SBHQ02 RC IE /01/ : /02/ : /03/ : SBHQ03 RC IE /01/ : /02/ : /03/ : SBHQ04 RC IE /01/ : /02/ : /03/ : SBHQ06 RC IE /01/ : /02/ : /03/ : SWSJ /02/ : /02/ : /03/ : SWSJ /02/ :00 DRY 22/02/ :45 DRY 06/03/ :50 DRY SWSJ /02/ : /02/ : /03/ : SWSJ /02/ : /02/ : /03/ : SWSJ /02/ : /02/ : /03/ : SWSJ /02/ : /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : LGBH /02/ : /03/ : RBBH /02/ /03/ : RBBH /02/ : /03/ : RBBH /02/ : /03/ : Recorded by: S Davis Checked by: I Swain Approved by: I Swain Date: 30/01/08-07/03/08 Date: 16/04/2008 Date: 17/04/2008 For No. SI GWR Revision No Issue Date 07/01/2008

22 Project Nae New M4 Preliinary Ground Investigation Project No. F15056 Groundwater Readings For Installations Engineer Ove Arup & Partners Ltd Fig no. Client NOTES: COMMENTS Transport Wales, Welsh Assebly 03 Governent IE=Piezoeter, =Standpipe For ultiple installations, use different Installation IDs. For piezoeters installation depth = tip depth. For standpipes = base of pipe SBHM01 RC installation extends 0.50 above ground level. - sybol indicates water level is above GL All groundwater levels are recorded fro ground level Installation Details Recorded Water Level Exploratory Hole ID Type Depth ID Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading SBHC01 RC IE /03/ : /04/ : /04/ : SBHD03 CP IE /03/ : /04/ : /04/ : SBHD05 RC IE /03/ : /04/ : /04/ : SBHD06 RC /03/ : /04/ : /04/ : SBHD08 RC IE /03/ : /04/ : /04/ : SBHE02RD IE /03/ : /04/ : /04/ : SBHE04 RC IE /03/ : /04/ : /04/ : SBHF01 RC IE /03/ : /04/ : /04/ : SBHF02A CP IE /03/ : /04/ : /04/ : SBHF03 RC IE /03/ : /04/ : /04/ : SBHH01 RC IE /03/ : /04/ : /04/ : SBHH02 RC IE /03/ : /04/ : /04/ : SBHH05 RC IE /03/ : /04/ : /04/ : SBHH06 CP /03/ : /04/ : /04/ : SBHH07A RC IE /03/ : /04/ : /04/ : SBHJ01 CP /03/ : /04/ : /04/ : SBHJ03 CP /03/ : /04/ : /04/ : SBHJ /03/ : /04/ : /04/ : SBHJ /03/ : /04/ : /04/ : SBHJ06 CP /03/ : /04/ : /04/ : SBHJ07 CP /03/ : /04/ : /04/ : SBHJ08A CP /03/ : /04/ : /04/ : SBHJ09 CP /03/ : /04/ : /04/ : SBHJ10 CP /03/ : /04/ : /04/ : SBHK01 CP /03/ : /04/ : /04/ : SBHK02 CP /03/ : /04/ : /04/ : SBHK03 CP /03/ : /04/ : /04/ :: SBHK04 CP /03/ : /04/ : /04/ : SBHL02 RC IE /03/ : /04/ : /04/ : SBHL03 RC IE /03/ : /04/ : /04/ : SBHM01 RC IE /03/ : /04/ : /04/ :55 SBHM02 RC IE /03/ : /04/ : /04/ : SBHN01A RC IE /03/ : /04/ : /04/ : SBHN02 RC IE /03/ : /04/ : /04/ : SBHN03 RC IE /03/ : /04/ : /04/ : SBHN04 RC IE /03/ :10 DRY 08/04/ :28 DRY 18/04/2008 Recorded by: S Davis Checked by: I Swain Approved by: I Swain Date: 17/03/08-17/04/08 Date: 21/04/2008 Date: 21/04/2008 For No. SI GWR Revision No Issue Date 07/01/ :55 DRY

23 Project Nae New M4 Preliinary Ground Investigation Project No. F15056 Groundwater Readings For Installations Engineer Ove Arup & Partners Ltd Fig no. Client NOTES: COMMENTS Transport Wales, Welsh Assebly Governent IE=Piezoeter, =Standpipe For ultiple installations, use different Installation IDs. For piezoeters installation depth = tip depth. For standpipes = base of pipe Unable to locate LGBH05 and RBBH08. LGBH06 was blocked All groundwater levels are recorded fro ground level Installation Details Recorded Water Level 04 Exploratory Hole ID Type Depth ID Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading Date dd//yyyy Tie hh: Reading SBHP01 RC IE /03/ :00 DRY 08/04/ :40 DRY 18/04/ :45 DRY SBHP02 RC IE /03/ : /04/ : /04/ : SBHP03 RC IE /03/ : /04/ :50 DRY 18/04/ : SBHQ01 RC IE /03/ : /04/ : /04/ : SBHQ02 RC IE /03/ : /04/ :10 DRY 18/04/ :05 DRY SBHQ03 RC IE /03/ : /04/ : /04/ : SBHQ04 RC IE /03/ : /04/ :02 DRY 18/04/ :40 DRY SBHQ06 RC IE /03/ : /04/ : /04/ : SWSJ /03/ : /04/ : /04/ : SWSJ /03/ :25 DRY 03/04/ :12 DRY 17/04/ :12 DRY SWSJ /03/ : /04/ : /04/ : SWSJ /03/ : /04/ : /04/ : SWSJ /03/ : /04/ : /04/ :46 DRY SWSJ /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : LGBH /03/ : /04/ : /04/ : RBBH /03/ : /04/ : /04/ : RBBH /03/ : /04/ : /04/ : RBBH /03/ : /04/ : /04/ : Recorded by: S Davis Checked by: I Swain Approved by: I Swain Date: 17/03/08-17/04/08 Date: 21/04/2008 Date: 21/04/2008 For No. SI GWR Revision No Issue Date 07/01/2008

24 SUPPORTING FACTUAL DATA SECTION B Exploratory Hole Records and Field Data IN SITU TEST DATA

25 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHD06 RC Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 05 Well Type Depth to base of installation bgl 15 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 10:00 19/03/ /03/ /03/ /03/ :55 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

26 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHH06 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 06 Well Type Depth to base of installation bgl 12.3 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 08:30 17/03/ /03/ /03/ /03/ :20 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c 8.13s 3.34s 3.01s 3.24s 3.16s 3.25s 3.22s 3.17s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

27 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ01 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 07 Well Type Depth to base of installation bgl 7.5 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 11:30 19/03/ /03/ /03/ /03/ :51 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

28 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ03 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 08 Well Type Depth to base of installation bgl 5.2 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 16:15 19/03/ /03/ /03/ /03/ :40 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

29 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ04 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 09 Well Type Depth to base of installation bgl 13.1 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 13:55 17/03/ /03/ /03/ /03/ :35 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

30 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ05 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 10 Well Type Depth to base of installation bgl 11.5 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 13:50 18/03/ /03/ /03/ /03/ :00 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

31 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ06 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 11 Well Type Depth to base of installation bgl 4.1 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 13:20 17/03/ /03/ /03/ /03/ :25 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

32 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ07 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 12 Well Type Depth to base of installation bgl 10.4 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 13:00 17/03/ /03/ /03/ /03/ :25 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

33 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ08A CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 13 Well Type Depth to base of installation bgl 7.4 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 12:00 18/03/ /03/ /03/ /03/ :00 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

34 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ09 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 14 Well Type Depth to base of installation bgl 2.2 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 12:00 18/03/ /03/ /03/ /03/ :25 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

35 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHJ10 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 15 Well Type Depth to base of installation bgl 10 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 12:40 17/03/ /03/ /03/ /03/ :15 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c s 4.59s 4.29s 4.23s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

36 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHK01 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 16 Well Type Depth to base of installation bgl 6.8 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 25/02/ /02/ /02/ /02/2008 N/A 10:30 19/03/ /03/ /03/ /03/ :45 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

37 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHK02 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 17 Well Type Depth to base of installation bgl 11.2 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 25/02/ /02/ /02/ /02/2008 N/A 11:20 19/03/ /03/ /03/ /03/ :15 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

38 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHK03 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 18 Well Type Depth to base of installation bgl 5.9 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 25/02/ /02/ /02/ /02/2008 N/A 12:00 19/03/ /03/ /03/ /03/ :45 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

39 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SBHK04 CP Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 19 Well Type Depth to base of installation bgl 12.2 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 25/02/ /02/ /02/ /02/2008 N/A 12:30 19/03/ /03/ /03/ /03/ :15 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c s 3.21s 3.24s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

40 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SWSJ08 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 20 Well Type Depth to base of installation bgl 3.3 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 21/02/ /02/ /02/ /02/2008 N/A 11:45 19/03/ /03/ /03/ /03/ :10 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

41 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SWSJ21 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 21 Well Type Depth to base of installation bgl 6 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 10:00 18/03/ /03/ /03/ /03/ :30 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

42 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SWSJ23 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 22 Well Type Depth to base of installation bgl 7.8 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 10:25 18/03/ /03/ /03/ /03/ :05 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Round four well dry before 0.5 well volue could be achieved Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

43 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SWSJ34 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 23 Well Type Depth to base of installation bgl 6 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 10:55 19/03/ /03/ /03/ /03/ :55 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c 4.10s 4.12s 3.98s s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Round 2 well dry before 3 well volues could be achieved Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

44 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID SWSJ37 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 24 Well Type Depth to base of installation bgl 5.6 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 11:30 18/03/ /03/ /03/ /03/ :15 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Round 4 well dry before 3 well volues could be achieved Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

45 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH02 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 25 Well Type Depth to base of installation bgl 8.88 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 12:55 17/03/ /03/ /03/ /03/ :35 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

46 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH03 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 26 Well Type Depth to base of installation bgl 8.9 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 14:21 17/03/ /03/ /03/ /03/ :35 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

47 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH04 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 27 Well Type Depth to base of installation bgl 10.5 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 09:30 18/03/ /03/ /03/ /03/ :20 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c s 3.25s 3.23s Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

48 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH09 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 28 Well Type Depth to base of installation bgl 7 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 12:40 17/03/ /03/ /03/ /03/ :00 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

49 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH10 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 29 Well Type Depth to base of installation bgl 14.6 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 14:30 17/03/ /03/ /03/ /03/ :20 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

50 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH11 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 30 Well Type Depth to base of installation bgl 11.2 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 10:00 18/03/ /03/ /03/ /03/ :40 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

51 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID LGBH12 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 31 Well Type Depth to base of installation bgl 7.05 Measured Paraeter Monitoring round no. Well type Units Detection Liit N/A N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 22/02/ /02/ /02/ /02/2008 N/A 13:10 17/03/ /03/ /03/ /03/ :00 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Round 4 well dry before 2 well volues could be achieved Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

52 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID RBBH07 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 32 Well Type Depth to base of installation bgl 6.25 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 12:15 19/03/ /03/ /03/ /03/ :25 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

53 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID RBBH09 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 33 Well Type Depth to base of installation bgl 7.05 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 13:40 19/03/ /03/ /03/ /03/ :40 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

54 Project Nae New M4 - Second Preliinary Ground Investigation Project No. F15056 Record Of In-Situ Water Monitoring Hole ID RBBH10 Engineer Ove Arup & Partners Ltd. Fig no. Client Notes Transport Wales, Welsh Assebly Governent Type of Sapling Point: OB = Open Borehole, = Standpipe, PZ = Piezoeter, GW = Gas Well, SS = Surface Saple, NR = Not Recorded 34 Well Type Depth to base of installation bgl 6.85 Measured Paraeter Monitoring round no. Well type Units N/A Detection Liit N/A N/A N/A Well volue Date Tie of initial reading dd// yyyy hh: N/A 27/02/ /02/ /02/ /02/2008 N/A 13:00 19/03/ /03/ /03/ /03/ :45 Water Level LNAPL DNAPL ph ph units Teperature C Conductivity µs/c Dissolved Oxygen % ORP V 1 Turbidity FTU Volue of water purged litres Weather Conditions: Equipent Used (list): Equipent Last Calibrated (respective to list above): Coents Monitored By: Date: For No. SI GWM Revision No Issue Date 30/10/2006

55 SUPPORTING FACTUAL DATA SECTION C Laboratory Testing KEY TO LABORATORY TEST RESULTS

56 SECTION C: KEY TO LABORATORY SUMMARY SHEETS COMMON TO ALL SUMMARIES Saple Type U Undisturbed saple AMAL Aalgaated saple P Piston saple B Bulk disturbed saple TW Thin walled saple BLK Block saple L Liner saple C Core saple D Sall disturbed saple Test status Any result in italics indicates a test that is not within the scope of the UKAS accreditation for this laboratory. SUMMARY OF LABORATORY SOIL TESTS: INDEX / CLASSIFICATION TESTS Particle density p Sall pyknoeter ethod g Gas jar ethod Plastic index N/P Non plastic, although liquid liit will have been deterined if requested Particle size (PSD) 1 Following value in silt colun denotes cobined clay and silt fraction p Following value in clay colun denotes sedientation by pipette, else sedientation is by hydroeter. SUMMARY OF LABORATORY SOIL TESTS: STRENGTH AND PERMEABILITY TESTS Triaxial UU Single stage unconsolidated quick undrained UUM Multi stage unconsolidated quick undrained UU3 Set of 3 unconsolidated quick undrained CU Single stage consolidated undrained CUM Multi stage consolidated undrained CU3 Set of 3 consolidated undrained CD Single stage consolidated drained CDM Multi stage consolidated drained CD3 Set of 3 consolidated drained Note that single stage tests are reported assuing phi = 0 for total stress and c' = 0 for effective stress Consol Oed One-diensional oedoeter Hyd Hydraulic cell consolidation v Coefficient of copressibility quoted for p0 to p kPa, where deterined Pereability C Constant head pereability T Triaxial pereability Shearbox SSB Sall shear box LSB Large shear box P Peak value r Residual value RS Ring shear Page 1 of 2

57 SECTION C: KEY TO LABORATORY SUMMARY SHEETS SUMMARY OF LABORATORY SOIL RE-USE TEST MCV s MCV value at natural or specified oisture content int Intercept of calibration line in MCV calibration SUMMARY OF LABORATORY ROCK STRENGTH TESTS Point Load Type D Diaetral A Axial (Cobination of) I Irregular lup B Block L Test perfored parallel to planes of weakness P Test perfored perpendicular to planes of weakness X Invalid failure of point load (not broken between points of load application) SUMMARY OF LABORATORY ROCK MATERIALS TESTS Ten% fines w Soaked test d Dry test POINT LOAD INDEX RESULT Point Load Type D Diaetral A Axial (Cobination of) I Irregular lup B Block L Test perfored parallel to planes of weakness P Test perfored perpendicular to planes of weakness X Invalid failure of point load (not broken between points of load application) Diensions W Diaeter of core or average sallest width perpendicular to axis of loading in a block or irregular lup D Distance between platens when just in contact with specien D' Distance between platens at point of failure De Equivalent core diaeter Is P/De 2 Is(50) F x Is F (De/50) 0.45 Is(50) point load strength index corrected for a diaetral test of core diaeter 50 For Axial/Lup tests De 2 = (4/Pi) x (W x D') For Diaetral tests De 2 = D x D' Iportant note: Suary sheets are provided for convenience and in no way replace individual test result sheets which shall, without exception, be regarded as the definitive result. Page 2 of 2

58 SUPPORTING FACTUAL DATA SECTION C Laboratory Testing CONTAMINATION TEST RESULTS

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125 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) LoD/Units Method Code Hardness Total TM152 # <1 g/l Arsenic Dissolved (ICP-MS) TM152 # < g/l Arsenic Dissolved (ICP-MS) TM152 # <0.001 g/l Berylliu Dissolved (ICP-MS) <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM152 # <0.001 g/l Calciu Dissolved (ICP-MS) TM152 # <0.16 g/l Chroiu Dissolved (ICP-MS) TM152 # <0.001 g/l Copper Dissolved (ICP-MS) < < < TM152 # < g/l Iron Dissolved (ICP-MS) TM152 # <0.05 g/l Lead Dissolved (ICP-MS) < TM152 # < g/l Lead Dissolved (ICP-MS) < < < TM152 # < g/l Magnesiu Dissolved (ICP-MS) <0.04 < <0.04 <0.04 TM152 # <0.04 g/l Manganese Dissolved (ICP-MS) < TM152 # <0.001 g/l Nickel Dissolved (ICP-MS) TM152 # < g/l Seleniu Dissolved (ICP-MS) TM152 # <0.001 g/l Vanadiu Dissolved (ICP-MS) < < <0.001 TM152 # <0.001 g/l Cadiu Total (HNO3 Digest) < < < < < < < < TM152 < g/l Zinc Total (HNO3 Digest) TM152 <0.003 g/l Mercury Total (Aqua Regia) < < < < < < TM183 < g/l Total Alkalinity as CaCO TM043 # <2 g/l BOD TM045 # <1 g/l COD TM107 # <5 g/l Potassiu Dissolved TM083 <0.2 g/l Sodiu Dissolved TM083 <0.2 g/l Nitrate as NO3 <1.5 < <0.3 <0.3 <0.3 <0.3 < TM102 # <0.3 g/l Sulphate (soluble) < TM098 # <3 g/l Chloride TM097 # <1 g/l Sulphide <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 TM101 <0.5 g/l Aoniacal Nitrogen as N TM099 # <0.2 g/l Hexavalent Chroiu - < TM151 # <0.03 g/l Phenols Monohydric < < < TM062 # < g/l Thiocyanate TM153 # <0.05 g/l Date

126 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) LoD/Units Method Code Total Cyanide <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 TM153 # <0.05 g/l Free Cyanide TM153 <0.05 g/l Coplex Cyanide TM153 # <0.05 g/l ph Value TM133 # <1.00 ph Units Date

127 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) LoD/Units Method Code GRO (C4-C12) < < < < < < < < TM089 # < g/l MTBE < < < < < < < < < TM089 # < g/l Benzene < < < < < < < < < TM089 # < g/l Toluene < < < < < < < < < TM089 # < g/l Ethyl benzene < < < < < < < < < TM089 # < g/l & p Xylene < < < < < < < < < TM089 # < g/l o Xylene < < < < < < < < < TM089 # < g/l Aliphatics C5-C6 < < < < < < < < < TM089 < g/l Aliphatics >C6-C8 < < < < < < < < TM089 < g/l Aliphatics >C8-C10 < < < < < < < < < TM089 < g/l Aliphatics >C10-C12 < < < < < < < < < TM089 < g/l Aliphatics >C12-C16 Aqueous < < < < < 0.13 < < < TM174 < g/l Aliphatics >C16-C21 Aqueous < < < < < 1.7 < < < TM174 < g/l Aliphatics >C21-C35 Aqueous < < < < < 9.4 < < < TM174 < g/l Total Aliphatics C5-C35 Aqueous < < < < 11 < < < TM61/89 < g/l Aroatics C6-C7 < < < < < < < < < TM089 # < g/l Aroatics >C7-C8 < < < < < < < < < TM089 # < g/l Aroatics >EC8-EC10 < < < < < < < < < TM089 < g/l Aroatics >EC10-EC12 < < < < < < < < < TM089 < g/l Aroatics >EC12-EC16 Aqueous < < < < < 0.06 < < < TM174 < g/l Aroatics >EC16-EC21 Aqueous < < < < < 0.42 < < < TM174 < g/l Aroatics >EC21-EC35 Aqueous < < < < < 2.7 < < < TM174 < g/l Total Aroatics C6-C35 Aqueous < < < < < 3.2 < < < TM61/89 < g/l TPH (Aliphatics and Aroatics C5-C35) Aqueous < < < < 14 < < < TM61/89 < g/l Date

128 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) SVOC by GCMS Phenols 2-Chlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylphenol <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Nitrophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l 2,4-Dichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Diethylphenol <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4,5-Trichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4,6-Trichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloro-3-ethylphenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Methylphenol <0.001 < <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l 4-Nitrophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l Pentachlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Phenol <0.001 <0.001 <0.001 < TM176 <0.001 g/l Method Code LoD/Units Date

129 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) PAHs LoD/Units Method Code 2-Chloronaphthalene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylnaphthalene < <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l Acenaphthene <0.001 < <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l Acenaphthylene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)pyrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(b)fluoranthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(ghi)perylene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(k)fluoranthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Chrysene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Dibenzo(a,h)anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluoranthene <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluorene <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Indeno(1,2,3-cd)pyrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Naphthalene < <0.001 <0.001 <0.001 < TM176 <0.001 g/l Phenanthrene <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Pyrene <0.001 < <0.001 < <0.001 <0.001 <0.001 TM176 <0.001 g/l Phthalates Bis(2-ethylhexyl) phthalate <0.002 <0.002 <0.002 <0.002 < < <0.002 TM176 <0.002 g/l Butylbenzyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-butyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-Octyl phthalate <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 TM176 <0.005 g/l Diethyl phthalate <0.001 < < <0.001 <0.001 <0.001 TM176 <0.001 g/l Diethyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Other Sei-volatiles 1,2-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,2,4-Trichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

130 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) Other Sei-volatiles (cont) LoD/Units Method Code 1,3-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,4-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Dinitrotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,6-Dinitrotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 3-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Broophenylphenylether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chlorophenylphenylether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Azobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethoxy)ethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethyl)ether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Carbazole <0.001 < <0.001 <0.001 <0.001 < <0.001 TM176 <0.001 g/l Dibenzofuran <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobutadiene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorocyclopentadiene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Isophorone <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l N-nitrosodi-n-propylaine <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Nitrobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

131 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) Volatile Organic Copounds LoD/Units Method Code Dichlorodifluoroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Vinyl Chloride <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Brooethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichlorofluoroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l trans-1-2-dichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Dichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Carbon Disulphide <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Methyl Tertiary Butyl Ether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l cis-1-2-dichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broochloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chlorofor <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 2.2-Dichloropropane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 <0.001 g/l 1.2-Dichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloropropene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Benzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Carbontetrachloride <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Dibrooethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dichloropropane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broodichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l cis-1-3-dichloropropene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l trans-1-3-dichloropropene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Toluene <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.3-Dichloropropane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

132 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Dibroochloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dibrooethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Ethylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l p/-xylene <0.001 < <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broofor <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Styrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l o-xylene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloropropane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Isopropylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 2-Chlorotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Propylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 4-Chlorotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Triethylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 4-Isopropyltoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Triethylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.4-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l sec-butylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l tert-butylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.3-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l n-butylbenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dibroo-3-chloropropane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Naphthalene <0.001 < <0.001 <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

133 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity LGBH02 LGBH03 LGBH04 LGBH09 LGBH10 LGBH11 LGBH12 RBBH07 RBBH09 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) (1) (1) (1) (1) (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Hexachlorobutadiene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

134 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) LoD/Units Method Code Hardness Total TM152 # <1 g/l Arsenic Dissolved (ICP-MS) < TM152 # < g/l Arsenic Dissolved (ICP-MS) TM152 # <0.001 g/l Berylliu Dissolved (ICP-MS) < <0.001 <0.001 < <0.001 TM152 # <0.001 g/l Calciu Dissolved (ICP-MS) TM152 # <0.16 g/l Chroiu Dissolved (ICP-MS) <0.001 < TM152 # <0.001 g/l Copper Dissolved (ICP-MS) < < TM152 # < g/l Iron Dissolved (ICP-MS) 0.06 < <0.05 TM152 # <0.05 g/l Lead Dissolved (ICP-MS) < < < TM152 # < g/l Lead Dissolved (ICP-MS) < TM152 # < g/l Magnesiu Dissolved (ICP-MS) < <0.04 TM152 # <0.04 g/l Manganese Dissolved (ICP-MS) < TM152 # <0.001 g/l Nickel Dissolved (ICP-MS) < TM152 # < g/l Seleniu Dissolved (ICP-MS) < TM152 # <0.001 g/l Vanadiu Dissolved (ICP-MS) TM152 # <0.001 g/l Cadiu Total (HNO3 Digest) < < < TM152 < g/l Zinc Total (HNO3 Digest) TM152 <0.003 g/l Mercury Total (Aqua Regia) < < < TM183 < g/l Total Alkalinity as CaCO TM043 # <2 g/l BOD TM045 # <1 g/l COD TM107 # <5 g/l Potassiu Dissolved TM083 <0.2 g/l Sodiu Dissolved TM083 <0.2 g/l Nitrate as NO3 < <0.3 - <0.3 <0.3 <0.3 - <0.3 TM102 # <0.3 g/l Sulphate (soluble) TM098 # <3 g/l Chloride TM097 # <1 g/l Sulphide <0.5 <0.5 <0.5 - <0.5 <0.5 <0.5 - <0.5 TM101 <0.5 g/l Aoniacal Nitrogen as N TM099 # <0.2 g/l Hexavalent Chroiu - - < < TM151 # <0.03 g/l Phenols Monohydric 0.02 < < - < < < TM062 # < g/l Thiocyanate TM153 # <0.05 g/l Date

135 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) LoD/Units Method Code Total Cyanide <0.05 <0.05 < <0.05 <0.05 < <0.05 TM153 # <0.05 g/l Free Cyanide TM153 <0.05 g/l Coplex Cyanide TM153 # <0.05 g/l ph Value TM133 # <1.00 ph Units Date

136 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) LoD/Units Method Code GRO (C4-C12) < < < - < < < - < TM089 # < g/l MTBE < < < - < < < - < TM089 # < g/l Benzene < < < - < < < - < TM089 # < g/l Toluene < < < - < < < - < TM089 # < g/l Ethyl benzene < < < - < < < - < TM089 # < g/l & p Xylene < < < - < < < - < TM089 # < g/l o Xylene < < < - < < < - < TM089 # < g/l Aliphatics C5-C6 < < < - < < < - < TM089 < g/l Aliphatics >C6-C8 < < < - < < < - < TM089 < g/l Aliphatics >C8-C10 < < < - < < < - < TM089 < g/l Aliphatics >C10-C12 < < < - < < < - < TM089 < g/l Aliphatics >C12-C16 Aqueous < < < - < 0.35 < - < TM174 < g/l Aliphatics >C16-C21 Aqueous < < < - < 0.14 < - < TM174 < g/l Aliphatics >C21-C35 Aqueous < < < - < < < - < TM174 < g/l Total Aliphatics C5-C35 Aqueous < < < - < 0.50 < - < TM61/89 < g/l Aroatics C6-C7 < < < - < < < - < TM089 # < g/l Aroatics >C7-C8 < < < - < < < - < TM089 # < g/l Aroatics >EC8-EC10 < < < - < < < - < TM089 < g/l Aroatics >EC10-EC12 < < < - < < < - < TM089 < g/l Aroatics >EC12-EC16 Aqueous < < < - < 0.59 < - < TM174 < g/l Aroatics >EC16-EC21 Aqueous < < < - < 0.61 < - < TM174 < g/l Aroatics >EC21-EC35 Aqueous < < < - < 0.51 < - < TM174 < g/l Total Aroatics C6-C35 Aqueous < < < - < 1.7 < - < TM61/89 < g/l TPH (Aliphatics and Aroatics C5-C35) Aqueous < < < - < 2.2 < - < TM61/89 < g/l Date

137 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) SVOC by GCMS Phenols 2-Chlorophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2-Methylphenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l 2-Nitrophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2,4-Dichlorophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2,4-Diethylphenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l 2,4,5-Trichlorophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2,4,6-Trichlorophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Chloro-3-ethylphenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Methylphenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l 4-Nitrophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Pentachlorophenol <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Phenol <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l Method Code LoD/Units Date

138 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) PAHs LoD/Units Method Code 2-Chloronaphthalene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2-Methylnaphthalene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Acenaphthene <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Acenaphthylene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Anthracene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Benzo(a)anthracene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Benzo(a)pyrene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Benzo(b)fluoranthene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Benzo(ghi)perylene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Benzo(k)fluoranthene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Chrysene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Dibenzo(a,h)anthracene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Fluoranthene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l Fluorene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Indeno(1,2,3-cd)pyrene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Naphthalene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Phenanthrene <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l Pyrene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l Phthalates Bis(2-ethylhexyl) phthalate <0.002 <0.002 NDP <0.002 <0.002 NDP <0.002 <0.002 TM176 <0.002 g/l Butylbenzyl phthalate <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Di-n-butyl phthalate <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Di-n-Octyl phthalate <0.005 <0.005 NDP <0.005 <0.005 <0.005 NDP <0.005 <0.005 TM176 <0.005 g/l Diethyl phthalate <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Diethyl phthalate <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Other Sei-volatiles 1,2-Dichlorobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 1,2,4-Trichlorobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Date

139 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) Other Sei-volatiles (cont) LoD/Units Method Code 1,3-Dichlorobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 1,4-Dichlorobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2-Nitroaniline <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2,4-Dinitrotoluene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 2,6-Dinitrotoluene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 3-Nitroaniline <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Broophenylphenylether <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Chloroaniline <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Chlorophenylphenylether <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l 4-Nitroaniline <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Azobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethoxy)ethane <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethyl)ether <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Carbazole <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP < TM176 <0.001 g/l Dibenzofuran <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Hexachlorobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Hexachlorobutadiene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Hexachlorocyclopentadiene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Hexachloroethane <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Isophorone <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l N-nitrosodi-n-propylaine <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Nitrobenzene <0.001 <0.001 NDP <0.001 <0.001 <0.001 NDP <0.001 <0.001 TM176 <0.001 g/l Date

140 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) Volatile Organic Copounds LoD/Units Method Code Dichlorodifluoroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Chloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Vinyl Chloride <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Brooethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Chloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichlorofluoroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l trans-1-2-dichloroethene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Dichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Carbon Disulphide <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.1-Dichloroethene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.1-Dichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Methyl Tertiary Butyl Ether <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l cis-1-2-dichloroethene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Broochloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Chlorofor <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 2.2-Dichloropropane <0.001 < <0.001 <0.001 < <0.001 TM208 <0.001 g/l 1.2-Dichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.1-Dichloropropene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Benzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Carbontetrachloride <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Dibrooethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.2-Dichloropropane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Broodichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichloroethene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l cis-1-3-dichloropropene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l trans-1-3-dichloropropene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Toluene <0.001 < < TM208 # <0.001 g/l 1.3-Dichloropropane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Date

141 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Dibroochloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.2-Dibrooethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Tetrachloroethene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Tetrachloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Chlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Ethylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l p/-xylene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Broofor <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Styrene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Tetrachloroethane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l o-xylene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichloropropane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Isopropylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Broobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 2-Chlorotoluene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Propylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 4-Chlorotoluene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Triethylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 4-Isopropyltoluene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Triethylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.2-Dichlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.4-Dichlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l sec-butylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l tert-butylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.3-Dichlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l n-butylbenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l 1.2-Dibroo-3-chloropropane <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Naphthalene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Trichlorobenzene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Date

142 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity RBBH10 SBHD06 SBHH06 SBHH06 SBHJ01 SBHJ03 SBHJ04 SBHJ04 SBHJ05 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) (1) (1) (1) 811 (1) (1) (1) (1) 812 (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Hexachlorobutadiene <0.001 < <0.001 <0.001 < <0.001 TM208 # <0.001 g/l Date

143 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Hardness Total TM152 # <1 g/l Arsenic Dissolved (ICP-MS) TM152 # < g/l Arsenic Dissolved (ICP-MS) TM152 # <0.001 g/l Berylliu Dissolved (ICP-MS) <0.001 < <0.001 <0.001 < TM152 # <0.001 g/l Calciu Dissolved (ICP-MS) TM152 # <0.16 g/l Chroiu Dissolved (ICP-MS) TM152 # <0.001 g/l Copper Dissolved (ICP-MS) < < TM152 # < g/l Iron Dissolved (ICP-MS) < <0.05 TM152 # <0.05 g/l Lead Dissolved (ICP-MS) TM152 # < g/l Lead Dissolved (ICP-MS) < < < TM152 # < g/l Magnesiu Dissolved (ICP-MS) <0.04 < TM152 # <0.04 g/l Manganese Dissolved (ICP-MS) < TM152 # <0.001 g/l Nickel Dissolved (ICP-MS) TM152 # < g/l Seleniu Dissolved (ICP-MS) < TM152 # <0.001 g/l Vanadiu Dissolved (ICP-MS) < TM152 # <0.001 g/l Cadiu Total (HNO3 Digest) < < TM152 < g/l Zinc Total (HNO3 Digest) TM152 <0.003 g/l Mercury Total (Aqua Regia) < < < TM183 < g/l Total Alkalinity as CaCO TM043 # <2 g/l BOD < <1 TM045 # <1 g/l COD TM107 # <5 g/l Potassiu Dissolved TM083 <0.2 g/l Sodiu Dissolved TM083 <0.2 g/l Nitrate as NO3 <0.3 <0.3 - <0.3 <0.3 <0.3 - <0.3 <0.3 TM102 # <0.3 g/l Sulphate (soluble) TM098 # <3 g/l Chloride TM097 # <1 g/l Sulphide <0.5 <0.5 - <0.5 <0.5 <0.5 - <0.5 <0.5 TM101 <0.5 g/l Aoniacal Nitrogen as N TM099 # <0.2 g/l Hexavalent Chroiu < TM151 # <0.03 g/l Phenols Monohydric < < < - < < TM062 # < g/l Thiocyanate < TM153 # <0.05 g/l Date

144 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Total Cyanide <0.05 < <0.05 <0.05 < <0.05 <0.05 TM153 # <0.05 g/l Free Cyanide < TM153 <0.05 g/l Coplex Cyanide < TM153 # <0.05 g/l ph Value TM133 # <1.00 ph Units Date

145 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code GRO (C4-C12) < < - < < < - < < TM089 # < g/l MTBE < < - < < < - < < TM089 # < g/l Benzene < < - < < < - < < TM089 # < g/l Toluene < < - < < < - < < TM089 # < g/l Ethyl benzene < < - < < < - < < TM089 # < g/l & p Xylene < < - < < < - < < TM089 # < g/l o Xylene < < - < < < - < < TM089 # < g/l Aliphatics C5-C6 < < - < < < - < < TM089 < g/l Aliphatics >C6-C8 < < - < < < - < < TM089 < g/l Aliphatics >C8-C10 < < - < < < - < < TM089 < g/l Aliphatics >C10-C12 < < - < < < - < < TM089 < g/l Aliphatics >C12-C16 Aqueous < < - < < < - < < TM174 < g/l Aliphatics >C16-C21 Aqueous < < - < < < - < < TM174 < g/l Aliphatics >C21-C35 Aqueous < < < < - < < TM174 < g/l Total Aliphatics C5-C35 Aqueous < < < < - < < TM61/89 < g/l Aroatics C6-C7 < < - < < < - < < TM089 # < g/l Aroatics >C7-C8 < < - < < < - < < TM089 # < g/l Aroatics >EC8-EC10 < < - < < < - < < TM089 < g/l Aroatics >EC10-EC12 < < - < < < - < < TM089 < g/l Aroatics >EC12-EC16 Aqueous < < - < < < - < < TM174 < g/l Aroatics >EC16-EC21 Aqueous < < - < < < - < < TM174 < g/l Aroatics >EC21-EC35 Aqueous < < - < < < - < < TM174 < g/l Total Aroatics C6-C35 Aqueous < < - < < < - < < TM61/89 < g/l TPH (Aliphatics and Aroatics C5-C35) Aqueous < < < < - < < TM61/89 < g/l Date

146 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Saple Nuber(s) SVOC by GCMS Phenols Batch ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) 2-Chlorophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylphenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Nitrophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Dichlorophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Diethylphenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4,5-Trichlorophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4,6-Trichlorophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloro-3-ethylphenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Methylphenol <0.001 NDP < NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Nitrophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Pentachlorophenol <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Phenol <0.001 NDP < NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Method Code LoD/Units Date

147 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) PAHs ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code 2-Chloronaphthalene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylnaphthalene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Acenaphthene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Acenaphthylene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Anthracene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)anthracene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)pyrene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(b)fluoranthene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(ghi)perylene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(k)fluoranthene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Chrysene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Dibenzo(a,h)anthracene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluoranthene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluorene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Indeno(1,2,3-cd)pyrene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Naphthalene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Phenanthrene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Pyrene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Phthalates Bis(2-ethylhexyl) phthalate <0.002 NDP <0.002 <0.004 <0.002 NDP <0.002 <0.002 <0.002 TM176 <0.002 g/l Butylbenzyl phthalate <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-butyl phthalate <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-Octyl phthalate <0.005 NDP <0.005 < <0.005 NDP <0.005 <0.005 <0.005 TM176 <0.005 g/l Diethyl phthalate <0.001 NDP <0.001 < NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Diethyl phthalate <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Other Sei-volatiles 1,2-Dichlorobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,2,4-Trichlorobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

148 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Other Sei-volatiles (cont) 1,3-Dichlorobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,4-Dichlorobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Nitroaniline <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Dinitrotoluene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,6-Dinitrotoluene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 3-Nitroaniline <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Broophenylphenylether <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloroaniline <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chlorophenylphenylether <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Nitroaniline <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Azobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethoxy)ethane <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethyl)ether <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Carbazole <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Dibenzofuran <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobutadiene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorocyclopentadiene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachloroethane <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Isophorone <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l N-nitrosodi-n-propylaine <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Nitrobenzene <0.001 NDP <0.001 <0.002 <0.001 NDP <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

149 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Volatile Organic Copounds Dichlorodifluoroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Chloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Vinyl Chloride <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Brooethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Chloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichlorofluoroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l trans-1-2-dichloroethene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Dichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Carbon Disulphide <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.1-Dichloroethene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.1-Dichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Methyl Tertiary Butyl Ether <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l cis-1-2-dichloroethene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Broochloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Chlorofor <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 2.2-Dichloropropane <0.001 NDP - <0.001 <0.001 < TM208 <0.001 g/l 1.2-Dichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.1-Dichloropropene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Benzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Carbontetrachloride <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Dibrooethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.2-Dichloropropane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Broodichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichloroethene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l cis-1-3-dichloropropene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l trans-1-3-dichloropropene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Toluene <0.001 NDP < TM208 # <0.001 g/l 1.3-Dichloropropane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Date

150 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Volatile Organic Copounds (cont) Dibroochloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.2-Dibrooethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Tetrachloroethene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Tetrachloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Chlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Ethylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l p/-xylene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Broofor <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Styrene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Tetrachloroethane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l o-xylene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichloropropane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Isopropylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Broobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 2-Chlorotoluene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Propylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 4-Chlorotoluene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Triethylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 4-Isopropyltoluene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Triethylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.2-Dichlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.4-Dichlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l sec-butylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l tert-butylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.3-Dichlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l n-butylbenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l 1.2-Dibroo-3-chloropropane <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Naphthalene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Trichlorobenzene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Date

151 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHJ06 SBHJ07 SBHJ07 SBHJ08 SBHJ09 SBHJ10 SBHJ10 SBHK01 SBHK02 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) ,670 (1) 637, (1) 813 (1) (1) (1) (1) 814 (1) (1) (1) LoD/Units Method Code Volatile Organic Copounds (cont) Hexachlorobutadiene <0.001 NDP - <0.001 <0.001 < TM208 # <0.001 g/l Date

152 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) LoD/Units Method Code Hardness Total TM152 # <1 g/l Arsenic Dissolved (ICP-MS) TM152 # < g/l Arsenic Dissolved (ICP-MS) TM152 # <0.001 g/l Berylliu Dissolved (ICP-MS) - - <0.001 <0.001 <0.001 <0.001 TM152 # <0.001 g/l Calciu Dissolved (ICP-MS) TM152 # <0.16 g/l Chroiu Dissolved (ICP-MS) < TM152 # <0.001 g/l Copper Dissolved (ICP-MS) TM152 # < g/l Iron Dissolved (ICP-MS) < TM152 # <0.05 g/l Lead Dissolved (ICP-MS) < < TM152 # < g/l Lead Dissolved (ICP-MS) TM152 # < g/l Magnesiu Dissolved (ICP-MS) <0.04 < TM152 # <0.04 g/l Manganese Dissolved (ICP-MS) TM152 # <0.001 g/l Nickel Dissolved (ICP-MS) TM152 # < g/l Seleniu Dissolved (ICP-MS) < TM152 # <0.001 g/l Vanadiu Dissolved (ICP-MS) < TM152 # <0.001 g/l Cadiu Total (HNO3 Digest) < < TM152 < g/l Zinc Total (HNO3 Digest) TM152 <0.003 g/l Mercury Total (Aqua Regia) < < < TM183 < g/l Total Alkalinity as CaCO TM043 # <2 g/l BOD <1 3 <1 < TM045 # <1 g/l COD TM107 # <5 g/l Potassiu Dissolved TM083 <0.2 g/l Sodiu Dissolved TM083 <0.2 g/l Nitrate as NO3 <0.3 < <0.3 <0.3 <0.3 TM102 # <0.3 g/l Sulphate (soluble) <3 TM098 # <3 g/l Chloride TM097 # <1 g/l Sulphide <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 TM101 <0.5 g/l Aoniacal Nitrogen as N TM099 # <0.2 g/l Hexavalent Chroiu TM151 # <0.03 g/l Phenols Monohydric < < < 0.06 < - TM062 # < g/l Thiocyanate TM153 # <0.05 g/l Date

153 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) LoD/Units Method Code Total Cyanide <0.05 < <0.05 < TM153 # <0.05 g/l Free Cyanide TM153 <0.05 g/l Coplex Cyanide TM153 # <0.05 g/l ph Value TM133 # <1.00 ph Units Date

154 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) LoD/Units Method Code GRO (C4-C12) < < < < < < TM089 # < g/l MTBE < < < < < < TM089 # < g/l Benzene < < < < < < TM089 # < g/l Toluene < < < < < < TM089 # < g/l Ethyl benzene < < < < < < TM089 # < g/l & p Xylene < < < < < < TM089 # < g/l o Xylene < < < < < < TM089 # < g/l Aliphatics C5-C6 < < < < < < TM089 < g/l Aliphatics >C6-C8 < < < < < < TM089 < g/l Aliphatics >C8-C10 < < < < < < TM089 < g/l Aliphatics >C10-C12 < < < < < < TM089 < g/l Aliphatics >C12-C16 Aqueous < < < < < < TM174 < g/l Aliphatics >C16-C21 Aqueous < < < < < < TM174 < g/l Aliphatics >C21-C35 Aqueous < < < < < < TM174 < g/l Total Aliphatics C5-C35 Aqueous < < < < < < TM61/89 < g/l Aroatics C6-C7 < < < < < < TM089 # < g/l Aroatics >C7-C8 < < < < < < TM089 # < g/l Aroatics >EC8-EC10 < < < < < < TM089 < g/l Aroatics >EC10-EC12 < < < < < < TM089 < g/l Aroatics >EC12-EC16 Aqueous < < < < < < TM174 < g/l Aroatics >EC16-EC21 Aqueous < < < < < < TM174 < g/l Aroatics >EC21-EC35 Aqueous < < < < < < TM174 < g/l Total Aroatics C6-C35 Aqueous < < < < < < TM61/89 < g/l TPH (Aliphatics and Aroatics C5-C35) Aqueous < < < < < < TM61/89 < g/l Date

155 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) SVOC by GCMS Phenols 2-Chlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylphenol <0.001 <0.001 < <0.001 <0.001 TM176 <0.001 g/l 2-Nitrophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Dichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Diethylphenol <0.001 <0.001 < <0.001 <0.001 TM176 <0.001 g/l 2,4,5-Trichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4,6-Trichlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloro-3-ethylphenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Methylphenol <0.001 <0.001 < <0.001 TM176 <0.001 g/l 4-Nitrophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Pentachlorophenol <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Phenol <0.001 <0.001 < <0.001 TM176 <0.001 g/l Method Code LoD/Units Date

156 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) PAHs LoD/Units Method Code 2-Chloronaphthalene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Methylnaphthalene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Acenaphthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Acenaphthylene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(a)pyrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(b)fluoranthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(ghi)perylene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Benzo(k)fluoranthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Chrysene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Dibenzo(a,h)anthracene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluoranthene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Fluorene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Indeno(1,2,3-cd)pyrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Naphthalene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Phenanthrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Pyrene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Phthalates Bis(2-ethylhexyl) phthalate <0.002 < <0.002 < TM176 <0.002 g/l Butylbenzyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-butyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Di-n-Octyl phthalate <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 TM176 <0.005 g/l Diethyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Diethyl phthalate <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Other Sei-volatiles 1,2-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,2,4-Trichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

157 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) Other Sei-volatiles (cont) LoD/Units Method Code 1,3-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 1,4-Dichlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,4-Dinitrotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 2,6-Dinitrotoluene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 3-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Broophenylphenylether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chloroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Chlorophenylphenylether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l 4-Nitroaniline <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Azobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethoxy)ethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Bis(2-chloroethyl)ether <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Carbazole <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Dibenzofuran <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorobutadiene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachlorocyclopentadiene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Hexachloroethane <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Isophorone <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l N-nitrosodi-n-propylaine <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Nitrobenzene <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 TM176 <0.001 g/l Date

158 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) Volatile Organic Copounds LoD/Units Method Code Dichlorodifluoroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Vinyl Chloride - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Brooethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichlorofluoroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l trans-1-2-dichloroethene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Dichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Carbon Disulphide - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloroethene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Methyl Tertiary Butyl Ether - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l cis-1-2-dichloroethene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broochloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chlorofor - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 2.2-Dichloropropane - - <0.001 <0.001 <0.001 <0.001 TM208 <0.001 g/l 1.2-Dichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.1-Dichloropropene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Benzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Carbontetrachloride - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Dibrooethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dichloropropane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broodichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l cis-1-3-dichloropropene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l trans-1-3-dichloropropene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Toluene - - < <0.001 TM208 # <0.001 g/l 1.3-Dichloropropane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

159 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Dibroochloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dibrooethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Chlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Ethylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l p/-xylene <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broofor - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Styrene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Tetrachloroethane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l o-xylene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichloropropane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Isopropylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Broobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 2-Chlorotoluene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Propylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 4-Chlorotoluene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Triethylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 4-Isopropyltoluene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Triethylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dichlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.4-Dichlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l sec-butylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l tert-butylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.3-Dichlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l n-butylbenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l 1.2-Dibroo-3-chloropropane - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Naphthalene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Trichlorobenzene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

160 Validated Preliinary ü Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results 08/00393/02/01 Matrix: LIQUID Norwest Holst Ltd Location: M4 NEWPORT F15056 Client Contact:Ian Swain # ISO accredited M MCERTS accredited * Subcontracted test» Shown on prev. report Saple Identity SBHK03 SBHK04 SWSJ08A SWSJ21 SWSJ34 SWSJ37 Depth () Saple Type LIQUID LIQUID LIQUID LIQUID LIQUID LIQUID Sapled Date Saple Received Date Batch Saple Nuber(s) 763, (1) (1) (1) (1) 762, (1) (1) Volatile Organic Copounds (cont) LoD/Units Method Code Hexachlorobutadiene - - <0.001 <0.001 <0.001 <0.001 TM208 # <0.001 g/l Date

161 Job Nuber: Client: Client Ref. No.: Report Key : Results expressed as (e.g.) 1.03E-07 is equivalent to 1.03x10-7 NDP No Deterination Possible * Subcontracted test ACM Asbestos Containing Materia» Result previously reported (Increental reports only) # ISO accredited M MCERTS Accredited EC Equivalent Carbon (Aroatics C8-C35) Note: Method detection liits are not always achievable due to various circustances beyond our control. Suary of Method Codes contained within report : Method No. Reference ALcontrol Laboratories Analytical Services Table Of Results - Appendix 08/00393/02/01 Norwest Holst Ltd F15056 Description ISO Accredited MCERTS Accredited Wet/Dry Saple ¹ Surrogate Corrected TM043 Method 2320B, AWWA/APHA, 20th Deterination of alkalinity in aqueous saples ü NA Ed., 1999 / BS 2690: Part TM045 MEWAM BOD5 2nd Ed.HMSO 1988 / Method 5210B, AWWA/APHA, 20th Ed., 1999; SCA Blue Book 130 Deterination of BOD5 (ATU) by Oxygen Meter ü NA TM062 MEWAM BOOK HMSO/ Method 17.7, Second Site property, March 2003 Deterination of Phenolic copounds by HPLC with electrocheical detection ü NA TM083 Method 3111, AWWA/APHA, 20th Ed., 1999 / Modified: US EPA Method 7610 Deterination of Sodiu and Potassiu by Flae Photoeter NA TM089 Modified: US EPA Methods 8020 & 602 Deterination of Gasoline Range Hydrocarbons (GRO) and BTEX (MTBE) copounds by Headspace GC-FID (C4-C12) NA TM089 Modified: US EPA Methods 8020 & Deterination of Gasoline Range Hydrocarbons (GRO) and ü NA 602 BTEX (MTBE) copounds by Headspace GC-FID (C4-C12) TM097 Modified: US EPA Method & Deterination of Chloride using the Kone Analyser ü NA TM098 TM099 Method 4500E, AWWA/APHA, 20th Deterination of Sulphate using the Kone Analyser ü NA Ed., 1999 BS 2690: Part 7:1968 / BS 6068: Deterination of Aoniu in Water Saples using the Kone ü NA Part2.11:1984 Analyser TM101 Method 4500B & C, AWWA/APHA, 20th Ed., 1999 Deterination of Sulphide in soil and water saples using the Kone Analyser NA TM102 Method 4500H, AWWA/APHA, 20th Deterination of Total Oxidised Nitrogen using the Kone ü NA Ed., 1999 Analyser Deterination of Cheical Oxygen Deand using COD Dr TM107 ISO ü NA Lange Kit TM133 BS 1377: Part ;BS Deterination of ph in Soil and Water using the GLpH ph Meter ü NA TM151 Method 3500D, AWWA/APHA, 20th Deterination of Hexavalent Chroiu using Kone analyser ü NA Ed., 1999 ¹ Applies to Solid saples only. DRY indicates saples have been dried at 35 C. NA = not applicable. WET indicates saples analysed as subitted.

162 Job Nuber: Client: Client Ref. No.: Report Key : Results expressed as (e.g.) 1.03E-07 is equivalent to 1.03x10-7 NDP No Deterination Possible * Subcontracted test ACM Asbestos Containing Materia» Result previously reported (Increental reports only) # ISO accredited M MCERTS Accredited EC Equivalent Carbon (Aroatics C8-C35) Note: Method detection liits are not always achievable due to various circustances beyond our control. Suary of Method Codes contained within report : Method No. Reference ALcontrol Laboratories Analytical Services Table Of Results - Appendix 08/00393/02/01 Norwest Holst Ltd F15056 Description ISO Accredited MCERTS Accredited Wet/Dry Saple ¹ Surrogate Corrected TM152 Method 3125B, AWWA/APHA, 20th Ed., 1999 Analysis of Aqueous Saples by ICP-MS NA TM152 TM153 TM153 Method 3125B, AWWA/APHA, 20th Analysis of Aqueous Saples by ICP-MS ü NA Ed., 1999 Method 4500A,B,C, I, M AWWA/APHA, 20th Ed., 1999 Deterination of Total Cyanide, Free (Easily Liberatable) Cyanide and Thiocyanate using the "Skalar SANS+ Syste" Segented Flow Analyser Deterination of Total Cyanide, Free (Easily Liberatable) Method 4500A,B,C, I, M Cyanide and Thiocyanate using the "Skalar SANS+ Syste" AWWA/APHA, 20th Ed., 1999 Segented Flow Analyser ü NA NA TM174 Deterination of Speciated Extractable Petroleu Hydrocarbons in Waters by GC-FID NA TM176 Deterination of SVOCs in Water by GCMS NA TM183 BS EN 23506:2002, (BS :2002) ISBN Deterination of Trace Level Mercury in Waters and Leachates by PSA Cold Vapour Atoic Fluorescence Spectroetry NA TM208 Modified: US EPA Method 8260b & 624 Deterination of Volatile Organic Copounds by Headspace / GC-MS in Waters NA TM208 Modified: US EPA Method 8260b & Deterination of Volatile Organic Copounds by Headspace / ü NA 624 GC-MS in Waters TM61/89 see TM061 and TM089 for details NA ¹ Applies to Solid saples only. DRY indicates saples have been dried at 35 C. NA = not applicable. WET indicates saples analysed as subitted.

163 Job Nuber: Client: Client Ref. No.: ALcontrol Laboratories Analytical Services Table Of Results - Appendix 08/00393/02/01 Norwest Holst Ltd F15056 Suary of Coolbox teperatures Batch No. Coolbox Teperature ( C)

164 1. Head Office & Geotechnical Laboratory Parkside Lane, Dewsbury Road, Leeds LS11 5SX 2. Scottish Office & Geotechnical Laboratory Unit 4, 28 Firth Road, Houston Industrial Est, Livingston, West Lothian EH54 5DJ 3. Southern Office Astral House, Iperial Way, Watford, Hertfordshire WD24 4WW 4. South West & Wales Region C1 Vantage Park, Old Gloucester Road, Habrook, Bristol BS16 1GW Additional Offices Widnes and Dublin Tel: Fax: Tel: Fax: Tel: Fax: Tel: Fax: