Manor Royal, Crawley Phase 2 Environmental Assessment Report 9 December 2013 Final Issue No 2 47068886 Edwards, Manor Royal, Crawley Phase II Environmental Assessment Report Project Title: Manor Royal, Crawley Report Title: Phase 2 Environmental Assessment Report Project No: 47068886 Report Ref: Status: Final Client Contact Name: Mr. Greville English Client Company Name: Harwoods Issued By: URS Infrastructure and Environment Ltd. St Georges House 5 St Georges Road Wimbledon London SW19 4DR United Kingdom Tel: + 44 (0) 20 8944 3300 Fax: + 44 (0) 20 8944 3301 www.urscorp.eu Document Production / Approval Record Issue No: Name Prepared by Approved by Signature Date Position Paolo Donati 09 December 2013 Geoenvironmental Consultant Stefano Alba 09 December 2013 Technical Director Document Revision Record Issue No Date Details of Revisions 1 29 November 2013 Draft 2 9 December 2013 Final Edwards, Manor Royal, Crawley Phase II Environmental Assessment Report LIMITATION URS Infrastructure and Environment Ltd. (URS) have prepared this Report for the sole use of Harwoods in accordance with the Agreement under which our services were performed. No other warranty, expressed or implied, is made as to the professional advice included in this Report or any other services provided by us. This Report may not be relied upon by any other party without the prior and express written agreement of URS. Unless otherwise stated in this Report, the assessments made assume that the sites and facilities will continue to be used for their current purpose without significant change. The conclusions and recommendations contained in this Report are based upon information provided by others and upon the assumption that all relevant information has been provided by those parties from whom it has been requested. Information obtained from third parties has not been independently verified by URS, unless otherwise stated in the Report. Where field investigations have been carried out, these have been restricted to a level of detail required to achieve the stated objectives of the services. The results of any measurements taken may vary spatially or with time and further confirmatory measurements should be made after any significant delay in using this Report. COPYRIGHT © This Report is the copyright of URS Infrastructure and Environment UK Limited. Any unauthorised reproduction or usage by any person other than the addressee is strictly prohibited. Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report CONTENTS Section Page No 1. INTRODUCTION.......................................................................................................... 2 1.1. 1.2. 1.3. Objectives .................................................................................................................... 2 Site Location and Description ....................................................................................... 2 Scope of Works............................................................................................................ 3 2. REVISED CONCEPTUAL SITE MODEL (CSM)........................................................... 3 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. 2.7. Geology ....................................................................................................................... 3 Hydrogeology ............................................................................................................... 4 Surface water and flood risk ......................................................................................... 4 Site History & Potential for Significant Contamination ................................................... 4 Waste .......................................................................................................................... 5 Industrial Land Use ...................................................................................................... 5 Preliminary Conceptual Site Model (CSM) .................................................................... 6 3. SITE INVESTIGATION ................................................................................................ 9 3.1. 3.2. 3.3. 3.4. 3.5. Health, Safety and Environment Plan (HSEP) .............................................................. 9 Underground Service Clearance................................................................................... 9 Intrusive Site Works ..................................................................................................... 9 Laboratory Analysis...................................................................................................... 9 Geology ..................................................................................................................... 11 4. GENERIC RISK ASSESSMENT ................................................................................ 12 4.1. 4.2. 4.3. 4.4. Generic Risk Screening Approach .............................................................................. 12 Environmental Analytical Results and Generic screening ............................................ 13 Quality Assurance / Quality Control (QA/QC).............................................................. 14 ACEC Classification ................................................................................................... 15 5. UPDATED CONCEPTUAL SITE MODEL .................................................................. 16 6. SUMMARY ................................................................................................................ 17 6.1. 6.2. 6.3. Human Health ............................................................................................................ 17 Controlled Waters ...................................................................................................... 17 Conclusions ............................................................................................................... 17 FIGURES APPENDIX A - BOREHOLE LOGS APPENDIX B - CONTAMINATION TABLES AND LABORATORY CERTIFICATES Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 i Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 1. INTRODUCTION This report has been prepared by URS Infrastructure & Environment UK Ltd (URS) on behalf of Harwoods, and presents the findings, conclusions and recommendations from the Phase 2 Environmental Investigation carried out at the BOC Ltd site located in Manor Royal, Crawley, herein referred to as “the site”. At the time of the investigation the site was demolished. The site is centred on National Grid Reference 527500, 138470, and located within an industrial district in Crawley, West Sussex (see Figure 1). URS Infrastructure & Environment UK Ltd (URS) is pleased to present (the Client) this proposal to undertake a Phase 2 Environmental Site Assessment (ESA) at the BOC Ltd, Manor Royal, The work was performed in accordance with URS proposal dated 07 November 2013 (proposal ref: 071113SA). The objectives and scope of this assessment are presented in the following sections. 1.1. Objectives The objectives of this assessment is to complete an intrusive investigation at the site in order to supplement and provide contamination data relating to the ground conditions underlying the site, and to inform the significance of potential environmental liabilities as part of the proposed acquisition. The works aim to refine the Conceptual Site Model (source-pathway-receptor of contamination) using information previously acquired during the URS July 2009 investigation. 1.2. Site Location and Description The site is located at the corner of Manor Royal and Faraday Road, Crawley, West Sussex (see Figure 2). The site covers an area of approximately 3.8 hectares and is located within an industrial area comprising several engineering and manufacturing works, plus various appliances including tanks and electric sub-stations. The site is currently being partially used as a long term car park (approximately 60% of site space) the remaining portion is a demolished building footprint associated with the previous BOC facility; covered by hardstanding comprising tarmac or concrete slabs. Isolated areas of grass are present in the north, west and south of the site. Existing buildings and infrastructure include, from north to south: a car park and a temporary storage and welfare facility for on-site workers. It is understood that the site was demolished in 2011 and that all operations associated with BOC Ltd have ceased. The site topography is generally flat; evidence of swelling and shrinking of ground surface (possibly associated with the underlying Weald Clay) is present in the car park in the north of the site. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 2 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 1.3. Scope of Works The following work was carried out as part of the Phase 2 Environmental investigation: 2. Prior to commencement, a project specific Health & Safety Plan was produced which included a method statement for the works and a hazard risk assessment; Prior to intrusive works, an underground survey was undertaken by specialist sub-contractor ADP Group Ltd at each exploratory location to detect the presence of underground services. A plan indicating proposed drilling and excavation locations was emailed to Greville English for review and agreement prior to works; Concrete coring and hardstanding breakout was carried out at borehole locations BH9, BH10 and BH11 located on hardstanding; Drilling of 5 no. boreholes (BH7 to BH11) using window sampling techniques to a maximum depth of 3.8m bgl; each borehole location was hand dug to a depth of 1.2 m bgl as a secondary precaution against any unidentified subsurface utilities; Soil arisings were screened using a Photoionisation Detector (PID) and representative soil samples collected as appropriate for laboratory analyses; and Soil samples were sealed and stored under appropriate conditions and sent by courier to a United Kingdom Accredited (UKAS) laboratory for environmental analysis. REVISED CONCEPTUAL SITE MODEL (CSM) The following subsections summarise the general environmental setting of the site and its surroundings utilising observations made during the site walkover and desktop assessment included in the URS 2009 report. Under UK best practice a preliminary Conceptual Site Model (CSM) lays the foundation to subsequent assessments. As additional site-specific data is obtained, equally the CSM is revised in order to interpret findings appropriately. The URS 2009 investigation comprised 6 No. window sampling boreholes (BH1 to BH6) to a maximum depth of 2.9m bgl. The 2009 report identified no groundwater beneath the site therefore it is considered that controlled waters continue to no longer be a sensitive receptor at this site. 2.1. Geology A review of the British Geological Survey (BGS) Map of Horsham (BGS Sheet 302, Solid and Drift Edition, 1: 50 000 series) indicates that the site is underlain by Made Ground and below by Weald Clay, which is categorised as a non-aquifer. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 3 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 2.2. Hydrogeology The National Rivers Authority Groundwater Vulnerability Map for East Kent (Sheet 46, East Sussex 1:100,000 Series) indicates that a negligibly permeable unproductive strata underlies the site, namely the Weald Clay. These formations are generally regarded as containing insignificant quantities of groundwater. There were no groundwater source protection zones designated by the Environment Agency in the immediate area surrounding the site. The 2009 Envirocheck report indicates that there were no licensed surface water or groundwater abstractions within 1km of the site. 2.3. Surface water and flood risk According to the 2009 Envirocheck report the nearest surface water feature was an unidentified water body located approximately 240m south of the site. According to the available OS map this feature appeared to be a drain to the south of Magpie Wood. No classified rivers are present within 1km of the site. There were twelve discharge consents located within 1km of the site. The closest was at approximately 260m northeast of the site and associated with British Telecommunications Plc for the discharge of surface water into the Crawters Brook stream. The remaining consents related to the discharge of cooling water or surface water for industrial activities into streams. According to the 2009 Envirocheck report, there were six recorded pollution incidents located within 500m of the site. The closest (Category 3 – Minor Incident) occurred in 1992 within the subject site and involved the discharge of unknown sewage to an unidentified receptor, presumably a drain. Two Category 2 - Significant Incidents involved the release of unknown oils and chemicals at approximately 360m northeast of the site (unidentified receptors). The site is not located within an area at risk from flooding. The site is located within a Nitrate Vulnerable Zone with respect to surface water. 2.4. Site History & Potential for Significant Contamination Ordnance Survey Maps of the following scales 1:1,250, 1:2,500, 1:10,000 and 1:10,560 dated between 1869 and 2008 were reviewed. 2.4.1. On Site History According to anecdotal information within the 2009 URS report, the site was a greenfield site up to 1957. This is consistent with the available historical maps, which show the existing main building already present in 1959. The same 1959 map showed a pond located in the southeast of the site, and unidentified tanks to the north of the main building; these tanks were not reported present at the time of the 2009 site visit and, according to the former BOC’s site manager, contained argon and liquid nitrogen and were removed few years before the site visit. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 4 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report The 1971 map shows the storage buildings (recently demolished) in the middle and northwest of the site, and additional tanks to the north of the main building which, according to the site manager, were used for water storage. The later maps do not show significant changes in land use. 2.4.2. Off Site History The surrounding site area was occupied by greenfields until the late 1950s. A variety of engineering and manufacturing works are shown on the 1959 and later maps. Greenfields were located to the north of the site and to the south of the site (the latter named Magpie Wood). Since 1970 additional factories were built to the north of the site. 2.5. Waste According to the 2009 Envirocheck report, there were no licensed waste management facilities or recorded waste transfer sites within 500m of the site. There were two recorded waste transfer sites within 500m of the site. The closest was approximately 260m northeast and authorised to handle pharmaceutical waste. One registered waste treatment or disposal site was located approximately 230m north of the site (license now elapsed / revoked), for incineration of pharmaceutical waste. No historical landfills or local authority recorded landfills were recorded within 2km of the site. 2.6. Industrial Land Use 2.6.1. Contemporary Trade Directory Entries According to the 2009 Envirocheck report, there was one contemporary trade directory entry located on-site, associated with the former BOC site (Edwards, pump manufacturers). There were more than 130 contemporary trade directory entries located within 500m of the site including: packaging manufacturers, garage services, television and video manufacturers, car body repairs, painting works, metal finishing, printers and several engineering works. 2.6.2. Fuel Station Entries There was one fuel station entry within 500m from the site, located at approximately 460m west of the site (petrol station). Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 5 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 2.6.3. Hazardous Substances There were no entries associated with handling or storage of hazardous substances within 500m of the site. 2.7. Preliminary Conceptual Site Model (CSM) 2.7.1. Potential On Site Sources of Contamination The available historical maps and the 2009 URS report highlighted the following potential sources of contamination: Former paintshop and cleaning tank in the southeast of the main building (chlorinated solvents and Trichloroethylene (TCE)); Former old paintshop, cleaning tank and plating works in the west of the main building (metals, chlorinated solvents and TCE); Laboratory workshop in the west of the site associated with the use of mercury for the production of manometers (mercury); Existing compressor in the north of the main building, with evidence of oil leakage noted on site (Total Petroleum Hydrocarbons (TPH)); Hazardous waste storage area for hydrocarbon contaminated material to the east of the main building (TPH); Water treatment plant to the east of the main building (acidic substances used for treatment of heavy metals in water) (metals, acids); and Former electric sub-station in the southwest of the site (Poly Chlorinated Biphenyls (PCB)). In addition, the current use of the site is an airport related car park (TPH). 2.7.2. Potential Off Site Sources of Contamination Surrounding industrial land use, including: packaging manufacturers, garage services, television and video manufacturers, car body repairs, painting works, metal finishing, printers, several engineering works, waste transfer and treatment sites. 2.7.3. Receptors Based on the desk study review and current statutory guidance, the following potential receptors have been identified: Human Health: comprising future site employees and workers; Controlled Waters: including the unidentified surface water feature at 240m south of the site, and other unclassified streams surrounding the site); and Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 6 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report Property: proposed building foundations, underground structures and services (e.g. water supply pipes). 2.7.4. Pathways The pathways considered viable for the migration of potential contaminants are as follows: 2.7.4.1. Human Health Based on future continued industrial land use for the site, the following exposure pathways are considered viable: Ingestion of superficial soils; Indoor and outdoor ingestion of soil derived dust; Dermal contact with superficial soils and soil derived dust; Indoor and outdoor inhalation of soil derived dust; and Indoor and outdoor inhalation of vapours from volatile soil and groundwater contamination. It is noted that the pathways listed above are those typically considered for chronic human health risk assessments and do not include pathways associated with short-term remediation or maintenance activities where workers may come into contact with soils 2.7.4.2. Controlled Waters Based on the known site environmental setting and UK statutory and technical guidance, the following migration pathways that have the potential to cause pollution of sensitive Controlled Waters receptors viable: Leaching of chemicals from impacted soils into soil pore-water by infiltrating precipitation; and Lateral migration of constituents of concern in perched groundwater to surface waters of unclassified streams in the surrounding area. No vertical migration pathways due to the absence of potential groundwater receptors (the site is located on a Non-Aquifer (Weald Clay)). 2.7.4.3. Property Migration and exposure pathways that might impact below ground foundations, structures and services include: Permeation of plastic pipes by certain organic compounds; and Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 7 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report Dissolution of sulphate and magnesium into perched water, creating conditions aggressive to underground concrete. Table 2.1 below presents a summary of the preliminary CSM discussed in the Sections above. Table 2.1 Preliminary Pollutant Linkage SOURCE Former paint shops, cleaning tanks and plating works inside main building (metals, chlorinated solvents and Trichloroethylene TCE) Laboratory workshop in the west of the site associated with the use of mercury for the production of manometers (mercury) Compressor in the north of the main building, with evidence of oil leakage (Total Petroleum Hydrocarbons - TPH) Hazardous waste storage area for hydrocarbon contaminated material to the east of the main building (TPH) Water treatment plant to the east of the main building (acidic substances used for treatment of heavy metals in water) (metals, acids) A former pond in the southeast of the site, which was infilled with unknown material and planted as a garden (unknown substances) PATHWAY RECEPTOR Human Health Ingestion of superficial soils; Future Site Workers & Visitors Indoor and outdoor ingestion of soil derived dust; Dermal contact with superficial soils and soil derived dust; Indoor and outdoor inhalation of soil derived dust; and Indoor and outdoor inhalation of gases / vapours from volatile soil and groundwater contamination. Controlled Waters Leaching of chemicals from impacted soils into soil pore-water by infiltrating precipitation Surrounding unclassified streams (closest is 240m south of the site) Lateral migration of contaminants of concern in perched water to surface waters of unclassified streams in the surrounding area. Property Permeation of pipes Building foundations Dissolution into perched water Underground structures Ingress of gases through foundations Underground services Buildings An electric sub-station in the southwest of the site (Poly Chlorinated Byphenyls – PCB) Current use: car park (TPH) N.B. – not all contaminant sources apply to all pathways. This table is intended as a summary only. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 8 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 3. SITE INVESTIGATION An intrusive site investigation was undertaken at the site by URS on 14 to 15 November 2013. The following sections detail the work carried out and the findings of the investigation. 3.1. Health, Safety and Environment Plan (HSEP) A URS‘ Health Safety and Environmental Plan was completed prior to any site reconnaissance or preliminary works being undertaken at the Site. The HSEP described the health, safety and environmental requirements for URS project personnel and their contractors' personnel involved in the environmental site investigation works. The HSEP included key project responsibilities, standard safe working practises, general physical and chemical hazards, a detailed hazard risk assessment, requirements for personal protective equipment (PPE), environmental management, decontamination procedures, waste management, management of change and emergency response plans. 3.2. Underground Service Clearance The presence of underground services such as electrical cables and drainage and effluent pipes in the vicinity of each proposed location was assessed by specialist subcontractor ADP Group Ltd. 3.3. Intrusive Site Works The approximate location of each intrusive location is shown in Figure 2. sampling logs are presented in Appendix A. Window Five soil bore locations (BH7 – BH11) were completed by ADP Group Ltd using a tracked continuous percussive drilling method to a maximum depth of 3.8m bgl, with soil arisings recovered within plastic liners. Soil borings were backfilled with on-site soils and the surface reinstated to the original condition. 3.3.1. Soil Sampling Based on field observations of potential contamination, two soil samples were generally collected from each of the soil bores and sent to the accredited laboratory. Soil from selected locations was also monitored for volatile organic compounds using a handheld PID. All arisings were logged in general accordance with BS EN ISO 14688 12002 and BS 5930. 3.4. Laboratory Analysis Soil samples collected during the subject investigation in November 2013 were submitted for analysis to Chemtest, an approved subcontract laboratory that meets the Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 9 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report requirements of URS’ Laboratory Quality Management System. Chemtest is UKAS accredited and holds MCERTS accreditation for a number of its analytical methodologies. Soil samples collected during the 2009 investigation were analysed by Alcontrol Laboratories, also UKAS accredited. Environmental laboratory certificates are presented as Appendix B. 3.4.1. Environmental Analytical Schedule The analytical schedules for soil samples collected for the subject investigation was carried out as following: A suite of selected metals (arsenic, chromium, chromium VI, copper, lead, mercury, selenium, nickel and zinc); Poly-cyclic Aromatic Hydrocarbons (PAH); Total Petroleum Hydrocarbons (TPH); Volatile Organic Compounds (VOC); pH; Asbestos Presence Screen; Total Organic Carbon (TOC). Waste Acceptance Criteria (WAC) testing (2 samples only) Typically two samples were analysed from each borehole location, one from Made Ground within the first 0.5m, where present, and the second from underlying natural soil (Weald Clay). The analytical schedules for soil samples collected in 2009 were very similar, with selected samples being also tested for Semi-Volatile Organic Compounds (SVOC), sulphate and Polychlorinated Biphenyl (PCB). The analytical schedule for samples collected in both investigations is shown in the appended Table 1. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 10 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 3.5. Geology Two main soil units were encountered in the intrusive investigation. The general geology encountered is summarised in Table 3.1. Table 3.1 Geological Summary Thickness Range (m) Stratum Description Made Ground Made Ground generally comprised concrete and tarmac hardstanding above clayey sandy GRAVEL of tarmac brick and concrete. 0.3 to 0.74 Predominantly soft to firm brown to orange / red mottled grey CLAY / SILT 1.82 to 3.40 (Topsoil encountered two locations instead) Weald Clay at Depth not proven 3.5.1. Made Ground Made Ground was encountered in all five locations up to a maximum depth of 0.74m. Made Ground generally comprised concrete and tarmac hardstanding above sandy gravel or gravelly sand, locally clayey, of brick and concrete. Fragments of tarmac were encountered at borehole BH7. Grass overlying topsoil and reworked clay mixed with concrete and brick fragments were encountered in BH8, the only borehole positioned on soft ground. 3.5.2. Weald Clay This unit is generally characterised by soft to stiff brown to orange / red mottled grey CLAY / SILT, grading to weak siltstone at depth. 3.5.3. Groundwater No groundwater or perched water was encountered at any of the boreholes. 3.5.4. Observations of Impact During site works visual and olfactory observations of contamination were recorded on the borehole and trial pit logs. PID measurements of ionisable hydrocarbons were taken at regular depth intervals. The maximum recorded concentrations were of 0.3ppm in two samples from BH7 and BH11 at 0.5m bgl. Both collected from the top of the Weald Clay. PID measurements recorded during the field works are presented on the borehole logs included as Appendix A. Visual and olfactory observations of contamination were not encountered, with the exception of Made Ground recovered from boreholes BH7 (slight hydrocarbon odour from tarmac) and BH11 (staining). Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 11 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 4. GENERIC RISK ASSESSMENT This section presents the methodology of the Generic Quantitative Risk Assessment (GQRA). A risk-based approach has been adopted for the assessment of data from the site. The data have been screened against criteria considered appropriate given the continued commercial / industrial use of the site and within the context of the site environmental setting, in order to assess the significance of identified impacts (if present). Constituent concentrations in soil at the site were deemed ‘potentially significant’ where they exceeded the ‘generic’ values. These values are used for initial screening of contaminant concentrations for the purpose of providing an initial indication of impacts at a site and evaluating the compounds that could proceed to a detailed assessment. As such, it should be noted that generic exceedances are not an indication of the requirement for remediation but rather, an indication of the need for further assessment. Additionally, where further risk assessment is considered necessary, use of more site specific information in the assessment can often lead to the conclusion that the observed concentrations are present at levels which represent an acceptable level of risk, considering the actual or proposed end use of a site (although each site assessment does have to be considered on an individual basis). 4.1. Generic Risk Screening Approach For the purposes of this report, comparing the concentrations recorded in soil against appropriate guideline values has been carried out to provide a preliminary assessment of the potential risks arising from identified impacts. Given the environmental setting of the site, the following receptors have been identified for potential on-site and off-site contamination: Future workers / users of the site (adult human health receptor); and Unidentified water stream located approximately 240 m south of the site (surface water receptor). The generic guideline values used are described below and are based on the UK guidance commercial / industrial use scenario. The assessments of risks described herein focus on the long-term and chronic exposure to human health and the environment exposure. Short term acute exposure during construction works are considered to be outside the scope of this report and should be addressed using site and method specific assessment and mitigation measures in accordance with prevailing legislation and guidance. Generic Guideline Values for Human Health – URS Generic Assessment Criteria (GAC) Soil data have been compared against generic screening criteria derived by URS. URS GAC are risk-based soil and groundwater concentrations that are protective of chronic risks to human health for a broad range of site conditions and different generic land-uses. They represent the first stage of assessment (also commonly called “screening values”). Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 12 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report If applied correctly to a site with a broadly consistent conceptual exposure model, it is recommended that an exceedance of a URS GAC triggers a need for further assessment of some form, such as a re-evaluation of the applicability of the conceptual site model relative to the GAC, further site investigation, more detailed quantitative risk assessment (also known as Stage 3 DQRA), and potentially remedial action, subject to tests of costbenefit, practicability and reasonableness. For the purpose of this assessment, both data from the 2009 and 2013 investigations were compared to the most recently derived GAC. 4.1.1. Generic Guideline Values for Controlled Waters Following development of the Conceptual Site Model (CSM) for the site as described in Chapter 2, namely that the site is underlain by an unproductive strata and an unidentified surface water receptor 240m south of the site, soil data has been compared against generic criteria for controlled waters taken from Freshwater Environmental Quality Standards (EQS’s). To evaluate potential risks to controlled waters from identified soil concentrations, Stage 2 GAC were calculated based on concentrations that would partition at equilibrium to give EQS concentrations in soil pore water. This soil screening is required to identify potentially significant areas of soil impact that might not yet have had sufficient time to impact groundwater. It is noted that this methodology is highly conservative but is consistent with the Environment Agency approach. For the purpose of this assessment, both data from the 2009 and 2013 investigations were compared to the most recently derived GAC. 4.2. Environmental Analytical Results and Generic screening The laboratory analytical results have been screened against generic assessment criteria (GACs) as described above. The following section describes the distribution of identified impacts across the site, including its significance in terms of the adopted screening criteria. Table 1 provides an analytical schedule for both the 2009 and 2013 analyses. Tables 2 to 6 provide soil analytical data and observed exceedances of generic screening criteria for both the 2009 and 2013 analyses, which are discussed below. Laboratory analytical reports are included in Appendix B. 4.2.1. Total Petroleum Hydrocarbons (TPH) and BTEX Compounds No samples exceeded the human health GAC for TPH and BTEX. TPH concentrations exceeded controlled waters GAC for one or more aromatic fractions in samples BH4 (0.4m), BH8 (0.2m) and BH9 (0.5m). Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 13 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 4.2.2. Metals No samples exceeded the adopted human health GAC for metals. However, chromium concentrations were compared with relevant GAC for chromium III. If they were to be compared with chromium VI GAC, seven out fifteen samples would exceed this GAC. However, Chromium VI is known as an unstable form of chromium and is likely to be present in elevated concentrations only if coming from specific anthropogenic sources. For this reason, the use of chromium VI GAC is considered to be too conservative for the purpose of this assessment. All the analysed samples exceeded the adopted controlled waters GAC for copper, nickel and zinc. Two samples exceeded the controlled waters GAC for mercury. 4.2.3. Semi-Volatile Organic Compounds (SVOC) and Polycyclic Aromatic Hydrocarbons (PAH) No samples exceeded the human health GAC for SVOC. Among PAH, only one sample exceeded the human health GAC (benzo(a)pyrene in sample from BH8, 0.2m). Samples collected from BH4 (0.40m) and BH8 (0.2m) recorded concentrations exceeding the relevant controlled water GACs for the majority of PAH compounds. 4.2.4. Volatile Organic Compounds (VOC) No samples exceeded the human health and controlled waters GACs for VOC. 4.2.5. Asbestos Containing Material (ACM) All samples were tested for ACM screen and did not show the presence of asbestos fibres. 4.2.6. Waste Acceptance Criteria (WAC) Tests WAC testing was carried out on two samples from BH11 (1.5m) and BH9 (0.5m). Results of analysis showed that detected concentrations to be generally below the limits for Inert Waste Landfills. An exceptions were two determinands from BH9 (0.5m), namely sulphate and Total Dissolved Solids. These two parameters were detected in concentrations above the respective limits for Inert Waste Landfills, but below the limits for ‘Stable Non-reactive Hazardous Waste in Non-Hazardous Landfills’. 4.3. Quality Assurance / Quality Control (QA/QC) Comprehensive Quality Assurance and Quality Control (QA/QC) procedures were implemented at all stages of the work to assess the accuracy of the data set collected and enable provision of data that is considered acceptable. In addition to adherence to URS’ sampling protocols, internal QA/QC checks by the laboratory are completed. Soil samples were subject to sampling, sample custody and laboratory protocols to check traceability and reliability of analytical results. These included: Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 14 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 4.4. Record of all works and sampling in site field notes; Transport of samples with chain of custody documents; and Confirming receipt of all samples and correct analytical instructions against laboratory supplied test schedules. ACEC Classification Soil analysis was undertaken to assess the Aggressive Chemical Environment for Concrete (ACEC) site classification. Six samples collected in 2009 were analysed for water soluble sulphate, with results presented in Table 2. Based on BRE Special Digest 1 procedures, according to the 2009 report the site was assessed to have the following classifications for design of below grade concrete elements: Design Sulphate Class = DS-1 ACEC Class = AC-1s Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 15 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 5. UPDATED CONCEPTUAL SITE MODEL Based on the desk study information and findings of intrusive investigation, the preliminary CSM has been updated to cover the following aspects: Potential Sources: one isolated concentration of benzo(a)pyrene (PAH) was recorded in excess of the relevant human health criteria. Various exceedences of controlled water GAC. Potential Pathways: ingestion, direct contact and inhalation (see Table 5.1). No significant pathways related to controlled water receptors are deemed to be present because of the absence of groundwater and perched water at the site. Potential Receptors: Future site workers, surface water receptor 240m south of site. Property receptors such as substructures and underground services were not included, assuming that a suitable concrete mix will be adopted (see section 4.4) and that new services will be laid in trenches with clean backfill. Table 5.1 presents a summary of the CSM showing viable pollutant linkages for the site following the Generic Risk Assessment. Table 5.1 – Updated Conceptual Site Model Medium/ Source Surface water – 240m S (unidentified water body) Pathway Present 9) Horizontal groundwater migration 8) Vertical groundwater migration 7) Leaching from unsaturated zone 6) Inhalation of vapours 5) Ingestion of groundwater 4) Inhalation of fugitive dust 3) Dermal contact Soils Future site workers (female adult aged 16-59 years) Groundwater 2) Consumption of vegetables Pathway 1) Direct soil and dust ingestion Receptor Soils Groundwater Blank: Pathway absent or not applicable Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 16 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report 6. SUMMARY 6.1. Human Health No samples exceeded the adopted human health GAC for metals. No samples exceeded the human health GAC for TPH and BTEX. No samples exceeded the human health GAC for SVOC. Among PAH, only one sample exceeded a human health GAC (benzo(a)pyrene in BH08 at 0.2m). 6.2. Controlled Waters Several metals were identified at concentrations exceeding the controlled waters GAC in all samples collected across the site. TPH concentrations exceeded controlled waters GAC for one or more aromatic fractions in samples BH4 (0.4m), BH8 (0.2m) and BH9 (0.5m). PCBs exceeded the controlled waters GAC at one location (BH4, 0.4m). Due to the absence of significant pathways for contamination (no groundwater or perched water was encountered on site, which is underlain by an unproductive strata) and highly sensitive water receptors, the overall risk to controlled waters posed by the subject site is deemed to be low. 6.3. Conclusions Based on these results and the continued commercial / industrial use of the site, the risk to future human health receptors is considered to be low. During proposed development works ground contamination may be locally encountered, at locations not covered by the URS investigation. However, any encountered contamination is likely to be local and to not pose significant risks to relevant human health and controlled water receptors. It is recommended that an ACEC Class AC-1s concrete type will be adopted for all concrete substructures. New services should be laid in trenches provided with clean backfill. It is considered, based on the findings of this investigation, that no further assessment or mitigation measures are required. Phase 2 Environmental Assessment Report 47068886 Manor Royal, Crawley December 2013 17 Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report Figures Title: Manor Royal, Phase 2 Environmental Assessment Report Location: Crawley Client: Harwoods Ltd App’d: Drawn: PD PD Figure No: 1 Site Location Plan Scale: NTS TI Ch’kd: Drg Size: A4 Job No: 47068886 Date: December 2013 Note: Figure extracted from Landmark Envirocheck report 27793979_1 BH7 BH8 BH9 BH6 BH4 BH3 BH1 BH11 BH10 BH2 BH5 Title SITE LAYOUT PLAN Location CRAWLEY Client HARWOODS LTD App’d: PD Drawn: AD BOREHOLE LOCATION AD Status: Ref: Scale: Job No: DRAFT KEY: TI Ch’kd: Drg.Size: Date: NTS NOV 2013 A4 PD/AD/LON 47068886 FIGURE 2 J:\Wimbledon-Jobs\BOC Limited\49318646 BOC Manor Royal Crawley\General\Graphics\TI_Only\49318646_Ste_Lyt.ai Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report Appendix A - Borehole Logs EXPLORATORY HOLE LOG Project Name and Site Location BOREHOLE No Client BOC Crawley, Sussex Date Start Date End Date TBC 15-11-13 15-11-13 Ground Level (m) Contractor Sheet Method / Plant Used ADP 1 of 1 Sample / Test Details Water Window Sampling Drilling Rig PID (ppm) Depth BH07 Co-Ordinates () STRATA Depth Legend (Thickness) 0.09 (0.36) BH07_0.4 DESCRIPTION COMMENTS MADE GROUND. Tarmac. MADE GROUND. Dark grey sandy GRAVEL. Gravel is fine to medium of angular to subangular tarmac stone. Sand is coarse. NVO Slight hydrocarbon odour. Damp. Olive green mottled grey sandy soft CLAY. Sand is fine to medium. Lithorelics of fine to medium angular to subangular siltstone. NVO. Moist. Geology becoming harder and friable with depth. Instalation /Backfill Job No Harwoods 0.45 0.3 0.5 BH07_1.0 1.0 <0.01 1.5 <0.01 EXPLORATORY HOLE LOG 21/09/07 BOC CRAWLEY.GPJ AGS3_ALL.GDT 18/11/13 (2.55) 2.0 <0.01 2.5 <0.01 3.0 <0.01 3.00 Borehole terminated at target depth of 3.0m bgl. WELL INSTALLATION DETAILS Cement seal Backfilled with on-site soils. Bentonite Fill LEGEND Road Pavement Made Ground (Fill) GENERAL REMARKS NVO - No Visulal or Olfactory Observations No installation. Borehole Backfilled with on site arisings. BGL - Below Ground Level Sandy CLAY SAMPLE TYPE DETAILS Environmental Sample Groundwater Table Water Strike bgl = Below Ground Level Logged By M.Forman Approved By P.Donati EXPLORATORY HOLE LOG Project Name and Site Location BOREHOLE No Client BOC Crawley, Sussex Date Start Date End Date TBC 14-11-13 14-11-13 Ground Level (m) Contractor Sheet Method / Plant Used ADP 1 of 1 Sample / Test Details Water Window Sampling Drilling Rig PID (ppm) Depth BH08 Co-Ordinates () STRATA Depth Legend (Thickness) 0.10 BH08_0.2 (0.30) 0.40 <0.01 0.5 DESCRIPTION COMMENTS Grass topped brown slightly sandy clayey topsoil. MADE GROUND. Brown slightly sandy slightly gravelly reworked CLAY. Gravels are of fine to medium angular to subrounded of concrete and brick. Sand is fine. Dry. NVO Dry. NVO Orange mottled grey sandy gravelly firm CLAY. Gravels are of fine angular to subrounded natural stone. NVO. Wet at 1.4m bgl. Orangey brown mottled grey firm sandy CLAY and lithorelics of of weak orangey grey subangular fine siltstone. Sand is fine. Dry. NVO Instalation /Backfill Job No Harwoods BH08_1.0 1.0 <0.01 1.5 <0.01 2.0 <0.01 2.5 <0.01 (1.20) 1.60 EXPLORATORY HOLE LOG 21/09/07 BOC CRAWLEY.GPJ AGS3_ALL.GDT 18/11/13 (2.20) 3.0 <0.01 3.5 <0.01 3.80 Borehole terminated at target depth of 3.8m bgl. WELL INSTALLATION DETAILS Backfilled with on-site soils. Bentonite Fill LEGEND Topsoil Made Ground (Fill) Sandy CLAY CLAY SAMPLE TYPE DETAILS GENERAL REMARKS NVO - No Visulal or Olfactory Observations No installation. Borehole Backfilled with on site arisings. BGL - Below Ground Level Environmental Sample Groundwater Table Water Strike bgl = Below Ground Level Logged By M.Forman Approved By P.Donati EXPLORATORY HOLE LOG Project Name and Site Location BOREHOLE No Client BOC Crawley, Sussex Date Start Date End Date TBC 15-11-13 15-11-13 Ground Level (m) Contractor 1 of 1 Water Sample / Test Details PID (ppm) Window Sampling Drilling Rig STRATA Depth Legend (Thickness) (0.24) 0.24 BH09_0.5 (0.50) <0.01 0.5 0.73 0.74 EXPLORATORY HOLE LOG 21/09/07 BOC CRAWLEY.GPJ AGS3_ALL.GDT 18/11/13 Sheet Method / Plant Used ADP Depth BH09 Co-Ordinates () WELL INSTALLATION DETAILS Cement seal DESCRIPTION COMMENTS MADE GROUND. Concrete. NVO MADE GROUND. Reddish orange gravelly sand. Gravels are fine to medium angular to subrounded of red brick and concrete. Sand is coarse. Dry. NVO. MADE GROUND. Concrete slab. Borehole terminated at 0.735m bgl due to refusal on concrete. NVO LEGEND Instalation /Backfill Job No Harwoods GENERAL REMARKS Backfilled with on-site soils. NVO - No Visulal or Olfactory Observations No installation. Borehole Backfilled with on site arisings. BGL - Below Ground Level SAMPLE TYPE DETAILS Environmental Sample Groundwater Table Water Strike bgl = Below Ground Level Logged By M.Forman Approved By P.Donati EXPLORATORY HOLE LOG Project Name and Site Location BOREHOLE No Client BOC Crawley, Sussex Date Start Date End Date TBC 15-11-13 15-11-13 Ground Level (m) Contractor Sheet Method / Plant Used ADP 1 of 1 Sample / Test Details Water Window Sampling Drilling Rig PID (ppm) Depth BH10 Co-Ordinates () STRATA Depth Legend (Thickness) (0.25) 0.25 0.30 0.5 BH10_0.6 <0.01 1.0 BH10_1.1 <0.01 DESCRIPTION COMMENTS MADE GROUND. Concrete. Wet. NVO. MADE GROUND. Brown slightly sandy slightly clayey medium GRAVEL. Gravel is angular to subangular of fine to medium concrete. Sand is coarse. Orangey brown mottled grey firm CLAY. Some with lithorelics of fine angular to subrounded siltstone. Dry. NVO Dry. NVO. Becoming friable with depth. Instalation /Backfill Job No Harwoods (2.06) 1.5 <0.01 2.0 <0.01 2.36 EXPLORATORY HOLE LOG 21/09/07 BOC CRAWLEY.GPJ AGS3_ALL.GDT 18/11/13 Borehole terminated at target depth of 2.36m bgl. WELL INSTALLATION DETAILS Cement seal Backfilled with on-site soils. Bentonite Fill LEGEND Concrete Made Ground (Fill) GENERAL REMARKS NVO - No Visulal or Olfactory Observations No installation. Borehole Backfilled with on site arisings. BGL - Below Ground Level CLAY SAMPLE TYPE DETAILS Environmental Sample Groundwater Table Water Strike bgl = Below Ground Level Logged By M.Forman Approved By P.Donati EXPLORATORY HOLE LOG Project Name and Site Location BOREHOLE No Client BOC Crawley, Sussex Date Start Date End Date TBC 15-11-13 15-11-13 Ground Level (m) Contractor Sheet Method / Plant Used ADP 1 of 1 Sample / Test Details Water Window Sampling Drilling Rig PID (ppm) Depth BH11 Co-Ordinates () STRATA Depth Legend (Thickness) DESCRIPTION COMMENTS MADE GROUND. Concrete NVO MADE GROUND. Dark grey sandy slightly clayey fine to medium GRAVEL. Gravel is angular to subrounded of concrete and brick. Olive slightly sandy firm CLAY. Sand is fine. Staining. Wet at 0.4m bgl. Damp. NVO Yellow slightly sandy gravelly firm CLAY. Gravels are angular to subrounded fine to medium of natural stone. Sand is fine. Damp. NVO Instalation /Backfill Job No Harwoods (0.27) BH11_0.3 0.27 0.45 0.5 0.3 1.0 <0.01 (0.95) 1.40 BH11_1.5 <0.01 1.5 (0.87) <0.01 2.0 2.27 EXPLORATORY HOLE LOG 21/09/07 BOC CRAWLEY.GPJ AGS3_ALL.GDT 18/11/13 Borehole terminated at target depth of 2.27m bgl. WELL INSTALLATION DETAILS Cement seal Backfilled with on-site soils. Bentonite Fill LEGEND Concrete Made Ground (Fill) CLAY Sandy Gravelly CLAY SAMPLE TYPE DETAILS GENERAL REMARKS NVO - No Visulal or Olfactory Observations No installation. Borehole Backfilled with on site arisings. BGL - Below Ground Level Environmental Sample Groundwater Table Water Strike bgl = Below Ground Level Logged By M.Forman Approved By P.Donati Edwards, Manor Royal, Crawley Phase 2 Environmental Assessment Report Appendix B - Contamination Tables and Laboratory Certificates Table 1 Analytical Schedule for Soil Samples URS Infrastructure and Environment Ltd X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Volatile Organic Compounds (VOC) X Poly Chlorinated Byphenils (PCB) X Asbestos Screen X X X pH Soluble Sulphate X X Total Organic Carbon (TOC) 2013 data X X X X PolyCyclic Aromatic Hydrocarbons (PAHs) 2009 data BH BH1 BH1 BH2 BH2 BH3 BH3 BH4 BH4 BH5 BH6 BH6 BH6 (DUPLICATE) BH08 BH08 BH10 BH10 BH11 BH11 BH09 BH07 Total Petroleum Hydrocarbons Phase of SI CLEA Metals Analysis X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Table 2 Miscellaneous Soil Data Depth (m) Units Water Soluble Sulphate as SO4 2:1 Extract Total Organic Carbon Moisture Stones content (>50mm) Asbestos Containing Material Screen pH Value g/l % % % NONE pH Units URS Infrastructure and Environment Ltd BH1 0.5 0.015 0.3 6.3 BH1 1.0 4.93 BH2 0.2 0.061 <0.2 No ACM Detected 9.41 2009 data BH2 BH3 0.4 0.2 0.16 5.76 10.28 BH4 0.4 0.47 1.6 No ACM Detected 10.88 BH5 0.7 0.016 <0.2 7.46 BH6 0.6 0.14 - BH08 0.2 2.1 10.8 <0.02 BH08 1 0.49 11 <0.02 BH10 0.6 0.33 17.8 <0.02 2013 data BH10 BH11 1.1 0.3 0.38 3.4 11.7 21.5 <0.02 <0.02 BH11 1.5 0.43 17.2 <0.02 BH09 0.5 1.1 9.8 <0.02 BH07 0.4 0.24 13.1 <0.02 No ACM Detected No ACM Detected No ACM Detected No ACM Detected No ACM Detected No ACM Detected No ACM Detected No ACM Detected No ACM Detected 8.15 8.3 7.9 7.2 5.4 5.9 4.7 11.2 7.7 Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Table 3 Concentrations of Metals in Soils Depth (m) Units MDL HH GAC CW GAC BH1 0.5 BH1 1.0 BH2 0.2 BH2 0.4 2009 data BH3 BH3 0.2 0.3-0.4 Arsenic Cadmium Chromium Copper Lead Mercury Nickel Selenium Zinc mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg 2 0.1 5 5 5 0.1 5 0.2 5 640 230 8840 71700 6010 354 1800 13000 665000 25.00202156 NA 240 0.1 259.2 0.5 1.00E+01 1 0.304 3 ND 52 33 20 ND 34 ND 120 4 ND 33 22 23 ND 16 ND 47 7 ND 28 32 8 ND 25 ND 53 ND ND 24 15 16 ND 16 ND 43 9 ND 15 17 37 ND 16 ND 38 XX XX ND NA RPD MDL ND 0.3 35 24 17 ND 34 ND 70 BH4 0.4 BH5 0.7 BH6 0.6 BH6 1.0 BH08 0.2 BH08 1 BH10 0.6 4 ND 18 47 28 3.1 25 ND 53 ND ND 42 27 25 ND 37 ND 71 ND ND 18 11 26 ND 13 ND 49 ND ND 45 32 32 ND 31 ND 71 16 0.89 210 53 210 1.1 550 0.28 150 12 0.21 33 11 34 ND 35 0.23 50 12 0.17 35 15 28 ND 27 0.3 49 2013 data BH10 BH11 1.1 0.3 5.7 0.22 40 24 28 ND 32 ND 62 8.3 0.21 40 58 38 ND 41 0.21 62 BH11 1.5 BH09 0.5 BH07 0.4 2.1 ND 32 23 26 ND 15 ND 39 25 0.16 8.1 61 130 0.27 9.3 ND 92 11 0.2 31 18 29 ND 23 ND 52 = Value Exceeds CW GAC = Value Exceeds CW and HH GAC = Not Detected = Non Available = Relative Percentage Difference = Method Detection Limit URS Infrastructure and Environment Ltd Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Table 4 Concentrations of TPH and PCB in Soils. 2009 data BH3 BH4 0.3-0.4 0.4 Depth (m) Units HH GAC CW GAC BH1 0.5 BH1 1.0 BH2 0.2 BH3 0.2 GRO Surrogate GRO (C4-C12) MTBE Benzene Toluene Ethyl benzene m & p Xylene o Xylene Sum of Xylenes Aliphatics C5-C6 Aliphatics >C6-C8 Aliphatics >C8-C10 Aliphatics >C10-C12 Aliphatics >C12-C16 Aliphatics >C16-C21 Aliphatics >C21-C35 Total Aliphatics C5-C35 Aromatics C6-C7 Aromatics >C7-C8 Aromatics >EC8-EC10 Aromatics >EC10-EC12 Aromatics >EC12-EC16 Aromatics >EC16-EC21 Aromatics >EC21-EC35 Total Aromatics C6-C35 TPH (Aliphatics and Aromatics C5-C35) % mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg No Criterion No Criterion 38400 1380000 1380000 No Criterion 34400 28100 28400 No Criterion No Criterion No Criterion No Criterion 9350.587758 1001304.438 1001304.438 No Criterion 2.62E+00 7.377092384 65.71954558 No Criterion No Criterion 120 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 110 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 130 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 110 ND ND ND ND ND ND ND ND ND ND ND ND 2.1 8.4 43 54 ND ND ND ND ND 0.29 17 17 71 130 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND PCBs (vs Aroclor 1254) mg/kg 34.8 0.159505317 - - - - - XX XX ND 2013 data BH10 BH11 1.1 0.3 BH4 0.7-1.0 BH5 0.7 BH6 0.6 BH6 1.0 BH08 0.2 BH08 1 BH10 0.6 97 ND ND ND ND ND ND ND ND ND ND ND ND 4.5 20 58 82 ND ND ND ND 1.1 11 72 84 170 130 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 110 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 100 ND ND ND ND ND ND ND ND ND ND ND ND 0.16 2 31 33 ND ND ND ND ND 0.24 27 27 60 110 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 310 ND ND ND 0.41 - ND - - - - - - BH11 1.5 BH09 0.5 BH07 0.4 ND ND 2900 ND - - - - = Value Exceeds CW GAC = Value Exceeds CW and HH GAC = Not Detected URS Infrastructure and Environment Ltd Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Table 5 Concentrations of SVOC and PAH in Soils 2009 data BH3 BH4 0.3-0.4 0.4 Depth (m) Units HH GAC CW GAC BH1 0.5 BH2 0.2 BH3 0.2 Phenols 2-Chlorophenol 2-Methylphenol 2-Nitrophenol 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4,5-Trichlorophenol 2,4,6-Trichlorophenol 4-Chloro-3-methylphenol 4-Methylphenol 4-Nitrophenol Pentachlorophenol Phenol mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg - - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND PAHs 2-Chloronaphthalene 2-Methylnaphthalene Acenaphthene Acenaphthylene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(ghi)perylene Benzo(k)fluoranthene Chrysene Dibenzo(a,h)anthracene Fluoranthene Fluorene Indeno(1,2,3-cd)pyrene Naphthalene Phenanthrene Pyrene mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg 72600.0 73300 5.18E+05 89.7 14.3 101 658 143 140 12.8 22600 59200 60.4 95.6 21800 54200 5.454820183 0.953528863 0.003265625 0.013057649 3.74E-02 No Criterion No Criterion No Criterion 0.924445002 0.003132148 0.010558309 3.605162493 No Criterion 0.009086469 2.872243737 8.187171867 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Phthalates Bis(2-ethylhexyl) phthalate Butylbenzyl phthalate Di-n-butyl phthalate Di-n-Octyl phthalate Diethyl phthalate Dimethyl phthalate mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg - - 0.12 ND ND ND ND ND ND ND ND ND ND ND Other Semi-volatiles 1,2-Dichlorobenzene 1,2,4-Trichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 2-Nitroaniline 2,4-Dinitrotoluene 2,6-Dinitrotoluene 3-Nitroaniline 4-Bromophenylphenylether 4-Chloroaniline 4-Chlorophenylphenylether 4-Nitroaniline Azobenzene Bis(2-chloroethoxy)methane Bis(2-chloroethyl)ether Carbazole Dibenzofuran Hexachlorobenzene Hexachlorobutadiene Hexachlorocyclopentadiene Hexachloroethane Isophorone N-nitrosodi-n-propylamine Nitrobenzene mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg - - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND XX XX ND URS Infrastructure and Environment Ltd 2013 data BH10 BH11 1.1 0.3 BH4 0.7-1.0 BH5 0.7 BH6 0.6 BH08 0.2 BH08 1 BH10 0.6 BH11 1.5 BH09 0.5 BH07 0.4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.14 ND 0.86 3.1 3 2.6 1.5 2.2 3.1 0.35 7.9 0.12 1.8 ND 3.3 6.7 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 3.8 0.81 13 27 23 21 16 17 28 5.1 59 3.7 17 0.32 35 46 ND ND ND 0.1 0.13 0.55 ND 0.65 0.13 ND 0.34 ND ND ND 0.22 0.28 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.14 ND ND 0.22 ND 0.23 ND ND 0.24 ND ND ND 0.23 0.13 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - - ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - - = Value Exceeds CW GAC = Value Exceeds CW and HH GAC = Not Detected Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Table 6 Concentrations of VOC in Soils Depth (m) Units 4-Bromofluorobenzene % Surrogate Recovery % Dibromofluoromethane % Surrogate Recovery % Toluene-d8 % Surrogate Recovery % 1.1.1.2-Tetrachloroethane mg/kg 1.1.1-Trichloroethane mg/kg 1.1.2.2-Tetrachloroethane mg/kg 1.1.2-Trichloroethane mg/kg 1.1-Dichloroethane mg/kg 1.1-Dichloroethene mg/kg 1.1-Dichloropropene mg/kg 1.2.3-Trichlorobenzene mg/kg 1.2.3-Trichloropropane mg/kg 1.2.4-Trichlorobenzene mg/kg 1.2.4-Trimethylbenzene mg/kg 1.2-Dibromo-3-chloropropane mg/kg 1.2-Dibromoethane mg/kg 1.2-Dichlorobenzene mg/kg 1.2-Dichloroethane mg/kg 1.2-Dichloropropane mg/kg 1.3.5-Trimethylbenzene mg/kg 1.3-Dichlorobenzene mg/kg 1.3-Dichloropropane mg/kg 1.4-Dichlorobenzene mg/kg 2.2-Dichloropropane mg/kg 2-Chlorotoluene mg/kg 4-Chlorotoluene mg/kg 4-Isopropyltoluene mg/kg Benzene mg/kg Bromobenzene mg/kg Bromochloromethane mg/kg Bromodichloromethane mg/kg Bromoform mg/kg Bromomethane mg/kg Carbon Disulphide mg/kg Carbontetrachloride mg/kg Chlorobenzene mg/kg Chloroethane mg/kg Chloroform mg/kg Chloromethane mg/kg cis-1-2-Dichloroethene mg/kg cis-1-3-Dichloropropene mg/kg Dibromochloromethane mg/kg Dibromomethane mg/kg Dichlorodifluoromethane mg/kg Dichloromethane mg/kg Ethylbenzene mg/kg Hexachlorobutadiene mg/kg Isopropylbenzene mg/kg Methyl Tertiary Butyl Ether mg/kg Naphthalene mg/kg n-Butylbenzene mg/kg o-Xylene mg/kg p/m-Xylene mg/kg Propylbenzene mg/kg sec-Butylbenzene mg/kg Styrene mg/kg tert-Butylbenzene mg/kg Tetrachloroethene mg/kg Toluene mg/kg trans-1-2-Dichloroethene mg/kg trans-1-3-Dichloropropene mg/kg Trichloroethene mg/kg Trichlorofluoromethane mg/kg Vinyl Chloride mg/kg XX XX ND URS Infrastructure and Environment Ltd HH GAC CW GAC BH1 0.5 BH2 0.2 2009 data BH4 BH4 0.4 0.7-1.0 BH5 0.7 BH6 0.6 BH08 0.2 BH08 1 BH10 0.6 2013 data BH10 BH11 1.1 0.3 BH11 1.5 BH09 0.5 BH07 0.4 No Criterion No Criterion No Criterion 19.2 3340 29500 5.48 - No Criterion No Criterion No Criterion 0.123652977 0.007167047 0.061929403 0.00882385 - 90 130 92 ND ND ND ND ND ND ND ND ND ND 0.011 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 92 81 91 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 78 9.8 91 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 97 130 94 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 75 110 88 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.003 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0028 ND ND ND ND ND ND ND ND ND 0.0011 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0039 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0036 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0033 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0037 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.0018 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 96 110 95 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.005 ND ND ND ND ND ND ND ND ND 0.0017 ND ND 0.0076 ND ND = Value Exceeds CW GAC = Value Exceeds CW and HH GAC = Not Detected Phase II Geoenvironmental Site Investigation Harwoods - Crawley November 2013 Depot Road Newmarket CB8 0AL Tel: 01638 606070 URS 6-8 Greencoat Place London SW1P 1PL FAO M Forman 20 November 2013 Dear M Forman Test Report Number 244734 Your Project Reference BOC Crawley Please find enclosed the results of analysis for the samples received 18 November 2013. If you require any further assistance, please do not hesitate to contact the Customer Services team. Yours sincerely Keith Jones, Technical Manager Notes to accompany report: • The in-house procedure is employed to identify materials and fibres in soils • The sample is examined by stereo-binocular and polarised light microscopy • Sample size is reduced by coning and quartering to obtain a representative sub-sample if necessary • The bulk identification is in accordance with the requirements of the analyst guide (HSG 248) • Samples associated with asbestos are retained for six months • The results relate only to the items tested as supplied by the client • Comments or interpretations are beyond the scope of UKAS accreditation 2183 Test Report 244734 Cover Sheet Registered in England & Wales - Registration Number 6511736 - Registered Office: 11 Depot Road Newmarket Suffolk CB8 0AL Depot Road Newmarket CB8 0AL Tel: 01638 606070 URS 6-8 Greencoat Place London SW1P 1PL FAO M Forman 20 November 2013 Dear M Forman Test Report Number 244734 Your Project Reference BOC Crawley Please find enclosed the results of analysis for the samples received 18 November 2013. All soil samples will be retained for a period of one month and all water samples will be retained for 7 days following the date of the test report. Should you require an extended retention period then please detail your requirements in an email to customerservices@chemtest.co.uk. Please be aware that charges may be applicable for extended sample storage. If you require any further assistance, please do not hesitate to contact the Customer Services team. Yours sincerely Keith Jones, Technical Manager Notes to accompany report: • The sign < means 'less than' • Tests marked 'U' hold UKAS accreditation • Tests marked 'M' hold MCertS (and UKAS) accreditation • Tests marked 'N' do not currently hold UKAS accreditation • Tests marked 'S' were subcontracted to an approved laboratory • n/e means 'not evaluated' • i/s means 'insufficient sample' • u/s means 'unsuitable sample' • Comments or interpretations are beyond the scope of UKAS accreditation • The results relate only to the items tested • All results are expressed on a dry weight basis • The following tests were analysed on samples as received and the results subsequently corrected to a dry weight basis TPH, BTEX, VOCs, SVOCs, PCBs, phenols • For all other tests the samples were dried at < 37°C prior to analysis • Uncertainties of measurement for the determinands tested are available upon request • None of the test results included in this report have been recovery corrected 2183 Test Report 244734 Cover Sheet Registered in England & Wales - Registration Number 6511736 - Registered Office: 11 Depot Road Newmarket Suffolk CB8 0AL URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Login Batch No Chemtest LIMS ID Sample ID Sample No Sampling Date Depth Matrix SOPi Determinandi 2010 pH 2625 Total Organic Carbon 2450 Arsenic Cadmium Chromium Copper Mercury Nickel Lead Selenium Zinc 2670 Total Petroleum Hydrocarbons 2700 Naphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benzo[a]anthracene Chrysene Benzo[b]fluoranthene Benzo[k]fluoranthene Report Date 20 November 2013 BOC Crawley 244734 CAS Noi 7440382 7440439 7440473 7440508 7439976 7440020 7439921 7782492 7440666 91203 208968 83329 86737 85018 120127 206440 129000 56553 218019 205992 207089 Unitsi % mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ AJ44379 BH08 AJ44380 BH08 AJ44381 BH10 AJ44382 BH10 AJ44383 BH11 AJ44384 BH11 Not Provided 0.20m SOIL Not Provided 1.00m SOIL Not Provided 0.60m SOIL Not Provided 1.10m SOIL Not Provided 0.30m SOIL Not Provided 1.50m SOIL 8.3 2.1 16 0.89 210 53 1.1 550 210 0.28 150 310 ¹ 0.32 0.81 3.8 3.7 35 13 59 46 27 28 21 17 7.9 0.49 12 0.21 33 11 <0.10 35 34 0.23 50 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 0.22 < 0.1 0.34 0.28 0.1 0.13 0.55 0.65 7.2 0.33 12 0.17 35 15 <0.10 27 28 0.30 49 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 5.4 0.38 5.7 0.22 40 24 <0.10 32 28 <0.20 62 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 5.9 3.4 8.3 0.21 40 58 <0.10 41 38 0.21 62 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 0.23 0.14 0.24 0.13 < 0.1 < 0.1 0.22 0.23 4.7 0.43 2.1 <0.10 32 23 <0.10 15 26 <0.20 39 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 * M M M M M M M M M M M M M M M M M M M M M M N N ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. All tests undertaken between 18/11/2013 and 20/11/2013 Column page 1 * Accreditation status Report page 1 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Login Batch No Chemtest LIMS ID Sample ID Sample No Sampling Date Depth Matrix SOPi Determinandi 2010 pH 2625 Total Organic Carbon 2450 Arsenic Cadmium Chromium Copper Mercury Nickel Lead Selenium Zinc 2670 Total Petroleum Hydrocarbons 2700 Naphthalene Acenaphthylene Acenaphthene Fluorene Phenanthrene Anthracene Fluoranthene Pyrene Benzo[a]anthracene Chrysene Benzo[b]fluoranthene Benzo[k]fluoranthene Report Date 20 November 2013 BOC Crawley 244734 CAS Noi 7440382 7440439 7440473 7440508 7439976 7440020 7439921 7782492 7440666 91203 208968 83329 86737 85018 120127 206440 129000 56553 218019 205992 207089 Unitsi % mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ AJ44385 BH09 AJ44386 BH07 Not Provided 0.50m SOIL Not Provided 0.40m SOIL 11.2 1.1 25 0.16 8.1 61 0.27 9.3 130 <0.20 92 2900 ¹ < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 7.7 0.24 11 0.20 31 18 <0.10 23 29 <0.20 52 < 10 ¹ < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 * M M M M M M M M M M M M M M M M M M M M M M N N ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. Column page 2 * Accreditation status Report page 1 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2700 Benzo[a]pyrene Dibenzo[a,h]anthracene Indeno[1,2,3-cd]pyrene Benzo[g,h,i]perylene Total (of 16) PAHs 2760 Methyl tert-butylether Dichlorodifluoromethane Chloromethane Vinyl chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Dichloromethane trans-1,2-Dichloroethene 1,1-Dichloroethane cis-1,2-Dichloroethene Bromochloromethane Trichloromethane 1,1,1-Trichloroethane Tetrachloromethane 1,1-Dichloropropene Benzene 1,2-Dichloroethane Trichloroethene 50328 53703 193395 191242 1634044 75718 74873 75014 74839 75003 75694 75354 75092 156605 75343 156592 74975 67663 71556 56235 563586 71432 107062 79016 mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ M M M M M M U M M M U M M N M M M U M M M U M M U AJ44379 BH08 AJ44380 BH08 AJ44381 BH10 AJ44382 BH10 AJ44383 BH11 AJ44384 BH11 Not Provided 0.20m SOIL Not Provided 1.00m SOIL Not Provided 0.60m SOIL Not Provided 1.10m SOIL Not Provided 0.30m SOIL Not Provided 1.50m SOIL 23 5.1 17 16 320 3.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ 0.13 < 0.1 < 0.1 < 0.1 2.4 2.8 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 0.1 < 0.1 < 0.1 < 0.1 <2 3.9 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 0.1 < 0.1 < 0.1 < 0.1 <2 3.6 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 0.1 < 0.1 < 0.1 < 0.1 <2 5.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ 7.6 ¹ < 0.1 < 0.1 < 0.1 < 0.1 <2 3.3 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. All tests undertaken between 18/11/2013 and 20/11/2013 Column page 1 * Accreditation status Report page 2 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2700 Benzo[a]pyrene Dibenzo[a,h]anthracene Indeno[1,2,3-cd]pyrene Benzo[g,h,i]perylene Total (of 16) PAHs 2760 Methyl tert-butylether Dichlorodifluoromethane Chloromethane Vinyl chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Dichloromethane trans-1,2-Dichloroethene 1,1-Dichloroethane cis-1,2-Dichloroethene Bromochloromethane Trichloromethane 1,1,1-Trichloroethane Tetrachloromethane 1,1-Dichloropropene Benzene 1,2-Dichloroethane Trichloroethene 50328 53703 193395 191242 1634044 75718 74873 75014 74839 75003 75694 75354 75092 156605 75343 156592 74975 67663 71556 56235 563586 71432 107062 79016 mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ mg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ M M M M M M U M M M U M M N M M M U M M M U M M U AJ44385 BH09 AJ44386 BH07 Not Provided 0.50m SOIL Not Provided 0.40m SOIL < 0.1 < 0.1 < 0.1 < 0.1 <2 3.7 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 0.1 < 0.1 < 0.1 < 0.1 <2 1.8 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 20 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ ne ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. Column page 2 * Accreditation status Report page 2 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2760 1,2-Dichloropropane Dibromomethane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 1,3-Dichloropropane Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene m- & p-Xylene o-Xylene Styrene Tribromomethane Isopropylbenzene Bromobenzene 1,2,3-Trichloropropane n-Propylbenzene 2-Chlorotoluene 1,2,4-Trimethylbenzene 4-Chlorotoluene 78875 74953 75274 10061015 108883 10061026 79005 127184 142289 124481 106934 108907 630206 100414 1330207 95476 100425 75252 98828 108861 96184 103651 95498 95636 106434 µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ M M M N M N M M U U M M M M M M M U M M N U M M U AJ44379 BH08 AJ44380 BH08 AJ44381 BH10 AJ44382 BH10 AJ44383 BH11 AJ44384 BH11 Not Provided 0.20m SOIL Not Provided 1.00m SOIL Not Provided 0.60m SOIL Not Provided 1.10m SOIL Not Provided 0.30m SOIL Not Provided 1.50m SOIL < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ 1.1 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ 1.7 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. All tests undertaken between 18/11/2013 and 20/11/2013 Column page 1 * Accreditation status Report page 3 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2760 1,2-Dichloropropane Dibromomethane Bromodichloromethane cis-1,3-Dichloropropene Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 1,3-Dichloropropane Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene m- & p-Xylene o-Xylene Styrene Tribromomethane Isopropylbenzene Bromobenzene 1,2,3-Trichloropropane n-Propylbenzene 2-Chlorotoluene 1,2,4-Trimethylbenzene 4-Chlorotoluene 78875 74953 75274 10061015 108883 10061026 79005 127184 142289 124481 106934 108907 630206 100414 1330207 95476 100425 75252 98828 108861 96184 103651 95498 95636 106434 µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ M M M N M N M M U U M M M M M M M U M M N U M M U AJ44385 BH09 AJ44386 BH07 Not Provided 0.50m SOIL Not Provided 0.40m SOIL < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 5.0 ¹ < 10 ¹ < 1.0 ¹ < 10 ¹ < 10 ¹ < 1.0 ¹ < 2.0 ¹ < 10 ¹ < 5.0 ¹ < 1.0 ¹ < 2.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 10 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. Column page 2 * Accreditation status Report page 3 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2760 tert-Butylbenzene 1,3,5-Trimethylbenzene sec-Butylbenzene 1,3-Dichlorobenzene 4-Isopropyltoluene 1,4-Dichlorobenzene n-Butylbenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-chloropropane 1,2,4-Trichlorobenzene Hexachlorobutadiene 98066 108678 135988 541731 99876 106467 104518 95501 96128 120821 87683 µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ U M U M U M U M U M U AJ44379 BH08 AJ44380 BH08 AJ44381 BH10 AJ44382 BH10 AJ44383 BH11 AJ44384 BH11 Not Provided 0.20m SOIL Not Provided 1.00m SOIL Not Provided 0.60m SOIL Not Provided 1.10m SOIL Not Provided 0.30m SOIL Not Provided 1.50m SOIL < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. All tests undertaken between 18/11/2013 and 20/11/2013 Column page 1 * Accreditation status Report page 4 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS 6-8 Greencoat Place London LABORATORY TEST REPORT Results of analysis of 8 samples received 18 November 2013 SW1P 1PL FAO M Forman Report Date 20 November 2013 BOC Crawley 244734 2760 tert-Butylbenzene 1,3,5-Trimethylbenzene sec-Butylbenzene 1,3-Dichlorobenzene 4-Isopropyltoluene 1,4-Dichlorobenzene n-Butylbenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-chloropropane 1,2,4-Trichlorobenzene Hexachlorobutadiene 98066 108678 135988 541731 99876 106467 104518 95501 96128 120821 87683 µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ µg kg-¹ U M U M U M U M U M U AJ44385 BH09 AJ44386 BH07 Not Provided 0.50m SOIL Not Provided 0.40m SOIL < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 1.0 ¹ < 50 ¹ < 1.0 ¹ < 1.0 ¹ ¹No sampling date was specified, stability times for this analyte may have been exceeded and these results may be compromised. The accreditation for these results remains unaffected. Column page 2 * Accreditation status Report page 4 of 4 This report should be interpreted in conjunction with the notes on the accompanying cover page. LIMS sample ID range AJ44379 to AJ44386 URS LABORATORY TEST REPORT 6-8 Greencoat Place Asbestos in Soils London Results of analysis of 8 samples received 18 November 2013 BOC Crawley SW1P 1PL FAO M Forman Login Batch No: 244734 Qualitative Results SOP 2190 ACM Type Chemtest ID AJ44379 AJ44380 AJ44381 AJ44382 AJ44383 AJ44384 AJ44385 AJ44386 Report Date 20 November 2013 Sample ID BH08 BH08 BH10 BH10 BH11 BH11 BH09 BH07 Sample Desc Depth (m) 0.20 1.00 0.60 1.10 0.30 1.50 0.50 0.40 Asbestos Identification UKAS Accredited UKAS Accredited - No Asbestos Detected No Asbestos Detected No Asbestos Detected No Asbestos Detected No Asbestos Detected No Asbestos Detected No Asbestos Detected No Asbestos Detected The detection limit for this method is 0.001% Signed Steve McGrath Asbestos Analyst All tests undertaken between 20-Nov-2013 and 20-Nov-2013 at our asbestos testing facility in Coventry Report page 1 of 1 LIMS sample ID range AJ44379 to AJ44386 Depot Road Newmarket CB8 0AL Tel: 01638 606070 URS 6-8 Greencoat Place London SW1P 1PL FAO M Forman 25 November 2013 Dear M Forman Test Report Number 244737i Interim Test Report Your Project Reference BOC Crawley Please find enclosed the results of analysis for the samples received 18 November 2013. All soil samples will be retained for a period of one month and all water samples will be retained for 7 days following the date of the test report. Should you require an extended retention period then please detail your requirements in an email to customerservices@chemtest.co.uk. Please be aware that charges may be applicable for extended sample storage. If you require any further assistance, please do not hesitate to contact the Customer Services team. Yours sincerely Keith Jones, Technical Manager Notes to accompany report: • The sign < means 'less than' • Tests marked 'U' hold UKAS accreditation • Tests marked 'M' hold MCertS (and UKAS) accreditation • Tests marked 'N' do not currently hold UKAS accreditation • Tests marked 'S' were subcontracted to an approved laboratory • n/e means 'not evaluated' • i/s means 'insufficient sample' • u/s means 'unsuitable sample' • Comments or interpretations are beyond the scope of UKAS accreditation • The results relate only to the items tested • All results are expressed on a dry weight basis • The following tests were analysed on samples as received and the results subsequently corrected to a dry weight basis TPH, BTEX, VOCs, SVOCs, PCBs, phenols • For all other tests the samples were dried at < 37°C prior to analysis • Uncertainties of measurement for the determinands tested are available upon request • None of the test results included in this report have been recovery corrected 2183 Test Report 244737 Cover Sheet Registered in England & Wales - Registration Number 6511736 - Registered Office: 11 Depot Road Newmarket Suffolk CB8 0AL LABORATORY TEST REPORT CEN 10:1 CUMULATIVE TWO STAGE BATCH TEST URS 6-8 Greencoat Place London Results of analysis of 4 samples received 18 November 2013 SW1P 1PL Report Date 25 November 2013 BOC Crawley FAO M Forman Login Batch No 244737 Chemtest LIMS ID Sample ID Sample No Sampling Date Depth AJ44411 Soil: AJ44409 BH11 Landfill Waste Acceptance Criteria Limits 00:00:00 1.50m Inert Waste Landfill Solid Waste Analysis Determinand i Total Organic Carbon Loss on Ignition Total BTEX TPH Total WAC Total (of 17) PAHs pH Acid Neutralisation Capacity SOP i 2625 2610 2761 2670 2700 2010 2015 mol kg-¹ * U U U U U U U U U U U U U U U N N N 2:1 Eluate mg l-¹ 0.001 0.009 <0.0005 <0.001 0.002 <0.0005 <0.001 0.011 <0.001 <0.001 <0.001 0.02 5.4 0.18 79 150 <0.030 4.7 Eluate Analysis Determinand i Arsenic Barium Cadmium Chromium Copper Mercury Molybdenum Nickel Lead Antimony Selenium Zinc Chloride Fluoride Sulfate Total Dissolved Solids Phenol Index Dissolved Organic Carbon SOP i 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1220 1220 1220 1040 1920 1610 Solid Information Dry mass of test portion/kg Moisture (%) Units i % % mg kg-¹ mg kg-¹ mg kg-¹ * M N M M N M N 0.46 2.78 <0.005 < 10 <2 6.5 0.104 8:1 Eluate mg l-¹ 0.001 0.002 <0.0005 <0.001 <0.001 <0.0005 <0.001 0.009 <0.001 <0.001 <0.001 0.006 0.55 0.16 30 48 <0.030 1.8 2:1 Eluate mg kg-¹ <0.05 <0.5 <0.01 <0.05 <0.05 <0.01 <0.05 <0.05 <0.01 <0.01 <0.01 <0.5 10.8 <1 158 300 <0.5 <50 Cumulative 10:1 Eluate mg kg-¹ <0.05 <0.5 <0.01 <0.05 <0.05 <0.01 <0.05 0.09 <0.01 <0.01 <0.01 <0.5 8.53 1.61 330 544 <0.5 <50 3 Stable Non-reactive Hazardous Hazardous Waste in Non- Waste Landfill Hazardous Landfill 5 6 10 6 500 100 >6 To evaluate To evaluate Limit values for compliance leaching test using BS EN 12457-3 at L/S 10 l/kg 0.5 20 0.04 0.5 2 0.01 0.5 0.4 0.5 0.06 0.1 4 800 10 1000 4000 1 500 2 100 1 10 50 0.2 10 10 10 0.7 0.5 50 15000 150 20000 60000 25 300 5 70 100 2 30 40 50 5 7 200 25000 500 50000 100000 800 1000 Leach Test Information 0.175 17.7 Leachant volume 1st extract/l Leachant volume 2nd extract/l Eluate recovered from 1st extract/l All tests undertaken between 18-Nov-2013 and 22-Nov-2013 * Accreditation status This report should be interpreted in conjunction with the notes on the accompanying cover page. 0.312 1.4 0.1092 Column page 1 Report Page 1 of 2 LIMS sample ID range AJ44409 to AJ44412 LABORATORY TEST REPORT CEN 10:1 CUMULATIVE TWO STAGE BATCH TEST URS 6-8 Greencoat Place London Results of analysis of 4 samples received 18 November 2013 SW1P 1PL Report Date 25 November 2013 BOC Crawley FAO M Forman Login Batch No 244737 Chemtest LIMS ID Sample ID Sample No Sampling Date Depth AJ44412 Soil: AJ44410 BH09 Landfill Waste Acceptance Criteria Limits 00:00:00 0.50m Inert Waste Landfill Solid Waste Analysis Determinand i Total Organic Carbon Loss on Ignition Total BTEX TPH Total WAC Total (of 17) PAHs pH Acid Neutralisation Capacity SOP i 2625 2610 2761 2670 2700 2010 2015 mol kg-¹ * U U U U U U U U U U U U U U U N N N 2:1 Eluate mg l-¹ 0.012 0.033 <0.0005 <0.001 0.035 <0.005 0.067 0.005 0.002 0.004 0.008 0.099 130 0.25 1500 2100 <0.030 29 Eluate Analysis Determinand i Arsenic Barium Cadmium Chromium Copper Mercury Molybdenum Nickel Lead Antimony Selenium Zinc Chloride Fluoride Sulfate Total Dissolved Solids Phenol Index Dissolved Organic Carbon SOP i 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1450 1220 1220 1220 1040 1920 1610 Solid Information Dry mass of test portion/kg Moisture (%) Units i % % mg kg-¹ mg kg-¹ mg kg-¹ * M N M M N M N 0.71 2.95 <0.005 1500 <2 11.5 0.086 8:1 Eluate mg l-¹ 0.008 0.026 <0.0005 <0.001 0.01 <0.0005 0.012 <0.001 <0.001 0.002 0.003 0.082 8 0.15 1400 1400 <0.030 10 2:1 Eluate mg kg-¹ <0.05 <0.5 <0.01 <0.05 0.07 <0.01 0.13 <0.05 <0.01 0.01 0.02 <0.5 260 <1 3000 4190 <0.5 57.9 Cumulative 10:1 Eluate mg kg-¹ 0.08 <0.5 <0.01 <0.05 0.13 <0.01 0.18 <0.05 <0.01 0.02 0.04 0.84 218 1.61 14100 14800 <0.5 122 3 Stable Non-reactive Hazardous Hazardous Waste in Non- Waste Landfill Hazardous Landfill 5 6 10 6 500 100 >6 To evaluate To evaluate Limit values for compliance leaching test using BS EN 12457-3 at L/S 10 l/kg 0.5 20 0.04 0.5 2 0.01 0.5 0.4 0.5 0.06 0.1 4 800 10 1000 4000 1 500 2 100 1 10 50 0.2 10 10 10 0.7 0.5 50 15000 150 20000 60000 25 300 5 70 100 2 30 40 50 5 7 200 25000 500 50000 100000 800 1000 Leach Test Information 0.175 9.57 Leachant volume 1st extract/l Leachant volume 2nd extract/l Eluate recovered from 1st extract/l All tests undertaken between 18-Nov-2013 and 22-Nov-2013 * Accreditation status This report should be interpreted in conjunction with the notes on the accompanying cover page. 0.331 1.4 0.1985 Column page 1 Report Page 2 of 2 LIMS sample ID range AJ44409 to AJ44412