Phase 1 Report - Nottinghamshire

B W B C o n s u l t i n g L t d ¤ R e g i s t e r e d i n E n g l a n d 5 2 6 5 8 6 3

ENVIRONMENT GROUP

Jones Homes (Northern) Ltd Phase 1A Development, Harworth Colliery Scrooby Road

Material Classification, Remediation and

Earthworks Principles Assessment Report

B W B C o n s u l t i n g L t d ¤ R e g i s t e r e d i n E n g l a n d 5 2 6 5 8 6 3

ENVIRONMENTAL

Jones Homes (Northern) Ltd Phase 1A Development, Harworth Colliery Scrooby Road

Material Classification, Remediation and

Earthworks Principles Assessment Report BWB Consulting Ltd Birmingham Livery Place, 35 Livery Street, Colmore Business District, Birmingham, B3 2PB T: +44(0) 121 233 3322, F: +44(0) 121 233 3318

Leeds Whitehall Waterfront, 2 Riverside Way, Leeds LS1 4EH T: +44(0) 113 2338000 F: +44(0) 113 2450654 London

15 Weller Street, London, SE1 1QU T: +44(0) 20 7234 9122

Manchester 4th Floor Carvers Warehouse, 77 Dale Street Manchester, M1 2HG

T: +44(0) 0161 2334260 Nottingham 5th Floor Waterfront House, Station Street, Nottingham NG2 3DQ T: +44(0) 115 924 1100 E: [email protected]

Date: November 2013

AUTHOR:

Simon Steele MEng (Hons) FGS

CHECKED:

Ashley Lowe BSc CGeol PGeol

FGS

APPROVED:

Ashley Lowe BSc CGeol PGeol FGS

REPORT REF

NO:

NTE2034E/01/V5

STATUS:

FINAL

mailto:[email protected]

PHASE 1A DEVELOPMENT, HARWORTH COLLIERY

MATERIAL CLASSIFICATION, REMEDIATION AND EARTHWORKS PRINCIPLES ASSESSMENT REPORT

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Document Revision Status

Issue Date Comments

V1 June 2012 Final

V2 July 2012 Final with amendments to earthworks principles

V3 August 2012 Final with amendments to paragraphs 3.8 and 3.9 to exclude the use of either lime or cement modification in accordance with NHBC requirements

V4 September 2013

Amendments to earthwork proposals

V5 November 2013

Final with rewording of paragraph 6.7




ii

CONTENTS PAGE

1.0 INTRODUCTION 1

Instruction 1

Objectives 1

Limitations 1

2.0 SITE SETTING 3

Site Location 3

Site Description 3

Published Geology 4

Site History 4

Previous Reports 4

3.0 Material Properties 5

Earthworks Material Properties 5

Calorific Value 7

Asbestos 8

Environmental 8

4.0 Remediation 10

Gas Protection Measures 11

5.0 Settlement Review 13

Proposed Structures 13

Conceptual Ground Model 13

Settlement Calculations 14

Settlement Results 15

6.0 EARTHWORKS PRINCIPLES 17

Material Quantities 17

End Specification 17




iii

TABLES

Table 1 Summary of Earthworks Geotechnical Test Results

FIGURES

Figure 1 Site Location Plan (included in main text) Figure 2 Site Layout and Monitoring Well Location Plan Figure 3 Likely Foundation Solution Zones

APPENDICES

Appendix 1 CLEA Statistical Assessment – Colliery Spoil Appendix 2 CLEA Statistical Assessment – Ash/Clinker Fill Appendix 3 BWB GSAC Derivation

Appendix 4 General Fill (above 2m of Formation) Validation Criteria Appendix 5 Engineered Fill (below 2.0m of Formation) Validation Criteria

Appendix 6 Imported Topsoil/ Subsoil Validation Criteria Appendix 7 Proposed Site Layout Plan



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1.0 INTRODUCTION

Instruction

1.1 BWB Consulting (BWB) was instructed by Jones Homes (Northern) Ltd (the Client) to carry out a further materials classification and remediation/

earthworks assessment at the Phase 1A Development Area, Harworth Colliery, Scrooby Road, Harworth, in order to address further NHBC

requirements. Details of the project brief are included in BWB email proposal dated 4th May 2012.

Objectives

1.2 The overall objective of the further assessment is to:

Assess the soils suitability and likely acceptability envelope for use

as engineered fill; Assess the soils suitability in accordance with reassessed

engineering and remediation criteria; Determine earthworks end specification parameters; and Assess the likely foundation settlement performance of expected

foundation types.

Limitations

1.3 The assessments and interpretation have been made in line with legislation and guidelines in force at the time of writing, representing best practice at that time.

1.4 All of the comments and opinions contained in this report, including any conclusions, are based on the information obtained by BWB during our

investigations.

1.5 There may be other conditions prevailing on the site which have not been disclosed by this investigation and which have not been taken into account

by this report. Responsibility cannot be accepted for conditions not revealed by the investigation.

1.6 Any diagram or opinion of the possible configuration of the findings is conjectural and given for guidance only and confirmation of intermediate ground conditions should be considered if deemed necessary.

1.7 Except as otherwise requested by the Client, BWB is not obliged and disclaims any obligation to update the report for events taking place after:

a) the date on which this assessment was undertaken; and b) the date on which the final report is delivered.

1.8 BWB makes no representation whatsoever concerning the legal

significance of its findings or to other legal matters referred to in the following report.



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1.9 This report has been prepared for the sole use of Jones Homes (Northern)

Ltd. No other third parties may rely upon or reproduce the contents of this report without the written permission of BWB. If any unauthorised third party comes into possession of this report they rely on it at their own

risk and the authors do not owe them any Duty of Care or Skill.



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2.0 SITE SETTING

Site Location

2.1 The site is located at Harworth Colliery in Harworth, located at national grid reference 461890, 391460. The location of the site is shown in

Figure 1.

Figure 1: Site Location Plan

Reproduced from the Ordnance Survey 1:25,000 scale map with the permission of the controller of Her Majesty’s Stationery Office Crown Copyright Reserved. OS Licence number 100013665.

Site Description

2.2 The Phase 1A development area comprises a portion of land, approximately 5.82ha in size, which forms part of the wider Harworth

Colliery site located to the south of Bircotes and Harworth village.

2.3 The Phase 1A development area is bound to the north by Scrooby Road, by residential properties to the east and west and other areas of the

colliery to the south.

2.4 The site is predominately occupied by a former backfilled brick pit,

recently cleared of vegetation. Three settling ponds are located to the southeast of the site. The northwest portion of the site is occupied by a former plant nursery, separated from the site by chainlink fencing and

high hedges.

2.5 The site slopes from circa 28m AOD in the east to circa 17m AOD in the

west.

2.6 The layout of the site with the main features is presented as Figure 2.



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Published Geology

2.7 The site is underlain by Glacial Till overlying the Sherwood Sandstone Group overlying Permian Marl and Limestone deposits and productive Coal Measures. The Sherwood Sandstone and Permian Limestone are classified

as Principal Aquifers in the region. The Permian Marl acts as an aquiclude between the Sherwood Sandstone and Permian Limestone.

Site History

2.8 From 1854 to 1904 a brick and tile works is shown to be present across the Phase 1A site area, followed by various phases of filling and settling

pond excavation.

Previous Reports

2.9 The following reports have recently been completed with respect to the site:

BWB Consulting Ltd for UK Coal Mining Ltd, Phase 1 Geo-Environmental Desk Study, Harworth Colliery, Harworth, Doncaster, Reference UKC020HE/01/V1, dated October 2007;

BWB Consulting Ltd for UK Coal Mining Ltd, Phase 2 Geo Environmental Assessment ‘Status’ Report, Harworth Colliery, DN11

8AB, Reference UKC020HE/02/V3, dated May 2011;

BWB Consulting Ltd for Harworth Estates Ltd, Phase 2 - Ground Investigation Factual Report, Phase 1A Development, Scrooby Road,

Harworth, Reference NTE1017/01/V1, dated May 2011;

BWB Consulting for Jones Homes (Northern) Ltd, Further

Delineation of Infilled Pit Letter Report, Reference SS/DRW/NTE1017E/221111, dated 22nd November 2011; and

BWB Consulting for Jones Homes (Northern) Ltd, Material Properties

Factual Letter Report, Reference SS/DRW/NTE2034, dated 14th June 2012.

2.10 The contents of the above reports have been used to inform sections of this report relevant to the Phase 1A site area; although familiarity and access to these has been assumed on the part of the reader, this report is

designed to assess pertinent environmental and geotechnical aspects pertaining to the proposed development of Phase 1A area only.



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3.0 MATERIAL PROPERTIES

3.1 Geotechnical and environmental material properties determined from relevant laboratory testing undertaken during all recent and historical phases of investigation of the Phase 1A Development area are

summarised in the following sections (reports referenced in Section 2.0).

3.2 Excavated soils, both ash/clinker fill and colliery spoil, should be visually

sorted to remove any significant extraneous items which would otherwise determine the soils as unsuitable. To ensure suitability for reuse, the significant quantities of whole glass bottles and glass fragments should be

separated by screening from ash/clinker material, hand sorted to remove other extraneous items, and reused/recycled as a glass aggregate.

Separate brick (e.g. from existing buried structures and stockpiled brick “seconds” encountered) may be crushed, screened and reused as a

selected clean granular fill material.

3.3 The resultant void would be back backfilled with geotechnically and environmentally suitable site won materials and imported material (in

order to address the likely mass deficit after compaction of ashy fill material) in order to provide a developable platform suitable of the

proposed residential development.

Earthworks Material Properties

3.4 The pertinent geotechnical results relating to the re-use of materials for

the proposed earthworks fill are summarised in Table 1.



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Table 1: Summary of Earthworks Geotechnical Test Results

Material Type

Natural Moisture Content

Plasticity Index

Earthworks Class

Compaction (2.5kg Rammer)

Maximum Dry Density

Optimum Moisture Content

Site Won Colliery Spoil

(8 samples)

Min. 12%

Avg. 16.1%

Max. 24%

(6 samples)

Min. 14%

Avg. 17.7%

Max. 22%

2C - 6 samples

(4 samples)

Min. 1.67 Mg/m2

Avg. 1.69 Mg/m2

Max. 1.72 Mg/m2

(4 samples)

Min. 10%

Avg. 12.8%

Max. 14%

Site Won Ash/Clinker

Fill

(8 samples)

Min. 25%

Avg. 28%

Max. 30%

- 2C - 2 sample

(2 samples)

Min. 0.96 Mg/m2

Avg. 0.965 Mg/m2

Max. 0.97Mg/m2

(2 samples)

Min. 30%

Avg. 36.5%

Max. 43%

Off Plot Colliery

Spoil - Bund

(1 sample)

18%

(1 sample)

18% 2C - 1 sample

(1 sample)

1.57 Mg/m2

(1 sample)

17%

Off Plot Colliery

Spoil - Tip No. 1

(21 samples)

Min. 9.9%

Avg. 17.6%

Max. 26%

(11 samples)

Min. 17%

Avg. 19.8%

Max. 24%

2C - 7 samples

1A - 1 samples

(5 samples)

Min. 1.49 Mg/m2

Avg. 1.67 Mg/m2

Max. 1.79 Mg/m2

(5 samples)

Min. 10%

Avg. 14.72%

Max. 20%

Off Plot Colliery Spoil - Eastern

Stockpiles

(5 samples)

Min. 10%

Avg. 14.6%

Max. 18%

(2 samples)

Min. 18%

Avg. 18.5%

Max. 19%

2C - 3 samples

1A - 2 samples

(3 samples)

Min. 1.70 Mg/m2

Avg. 1.72 Mg/m2

Max. 1.74 Mg/m2

(3 samples)

Min. 10%

Avg. 13%

Max. 16%

Note: Number in () brackets is the number of samples tested.

3.5 The geotechnical test results indicated that all colliery spoil (site won and

from the wider site area) comprise similar materials which are likely to behave similarly geotechnically.

3.6 The results of the compaction testing reveals that the natural moisture content is typically at 2% to 4% wet of the optimum moisture content. In all cases, the natural moisture content places the material within 95% of

the maximum dry density on their respective compaction curves.

3.7 For all colliery spoil, CBR testing on the compacted samples resulted in

values ranging between 9% and 20%, with hand shear vane testing in excess of 130 kPa (although it should be noted that the colliery spoil has a high granular fraction).

3.8 For the ash/clinker fill, CBR testing on compacted samples resulted in values ranging between 26% and 32%.

3.9 The potentially expansive nature of site won ash/clinker fill material shall be required to be assessed in order to determine its suitability prior to its use as a fill material.



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3.10 The suitability of earthworks materials has been assessed on the basis of

the testing carried out as part of this investigation. The materials encountered on site may vary from those analysed; furthermore, inclement weather or winter working may result in materials being

unsuitable for incorporation within the works.

3.11 Preliminary lime modification test results undertaken of representative

combined samples of both site won and wider site colliery spoil indicated that the 28 day soaking of lime modified soils (2.5% lime) resulting in swelling less than 4 mm. Notwithstanding this, the use of Lime and or

Cement modified soils shall however be prohibited on this site due to potentially high sulphate conditions as required by NHBC.

3.12 Stockpiled materials often deteriorate due to water infiltration and they may become unsuitable for incorporation in the works; adequate sealing

of stockpiles should be undertaken where materials are not intended for immediate use.

Chemical Attack on Buried Concrete

3.13 The site won colliery spoil is anticipated to be pyritic in nature because of the likely coal/ carbonaceous content (although limited as Harworth

Estates/ UK Coal wish to retain all material with high proportion of coal and coal fines for product recovery).

3.14 For the colliery spoil (from all sources), water soluble sulphate

concentrations in soils varied from 636 mg/l to 4140 mg/l with soil pH values ranging from 2.5 to 7.5.

3.15 Total sulphur concentrations ranged from 0.30% to 1.26 %.

3.16 In accordance with the recommendations of BRE Special Digest 1, ‘Concrete in Aggressive Ground’ 2005, the conditions of the soils at the

site would therefore likely be classified as Design Sulphate Class DS-4 and ACEC Class AC-5 for soils and groundwater, when considering the most

appropriate type of concrete to be used at the site in order to resist chemical attack from elevated sulphate present in the soils (assuming mobile groundwater in potentially pyritic soils).

3.17 This assessment should be reconfirmed after assessment of appropriate compliance testing of materials after completion of the proposed

earthworks.

Calorific Value

3.18 Calorific values of the colliery spoil ranged between 1.1 MJ/kg and 7.5

MJ/kg (6 no. samples, average of 4.5 MJ/kg). The calorific values of ash/ clinker fill to be confirmed after assessment of appropriate compliance

testing of materials prior to placement as fill.



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3.19 There is no statuary guidance for the assessment of potential

combustibility of in-situ material, however guidance given in ICRCL Guidance note 61/84 ‘Notes on the fire hazards of contaminated land’ states that material with calorific values in excess of 10 MJ/kg are likely to

ignite, and there is an unacceptable risk of smouldering when the calorific value of soils exceeds 7 MJ/kg (to be adopted as the screening criteria).

Asbestos

3.20 No visual evidence of asbestos containing materials was observed within the soils matrix during the intrusive investigations.

3.21 Of the 14 no. colliery spoil samples screened for the presence of asbestos, 3 no. samples detected fibres within the soils matrix (loose fibres within

the soil) located both in-situ and across the colliery site. These 3 no. samples were further tested for asbestos quantification, which did not

reveal any concentrations above the limits of detection (0.001%). 2 no. ash/clinker samples also screened for the presence of asbestos; no fibre were detected.

3.22 In the absence of statutory guidance, recommendation given in the Dutch Asbestos Guidelines (report 711701034) have been adopted as a

screening criteria; any soils containing visually identifiable asbestos material or soil bound asbestos fibres greater than 0.01% w/w (100 mg/kg) shall be deemed unsuitable for re-use as engineered fill. This

value has not been exceeded in the samples tested.

Environmental

3.23 The site won colliery spoil has been initially sampled and analysed for a wide number of potential contaminants, the results of which are presented within Appendix 1. The results of the analysis have identified elevated

concentrations of arsenic and naphthalene in the majority of samples analysed. Sample concentrations are broadly similar and it has been

concluded that these elevated concentrations are likely to represent naturally occurring background levels of impurities within the colliery spoil. Low level longer chain TPH fractions are considered representative

of carbonaceous coal fragments within this fill.

3.24 The site won ash/clinker fill were also analysed, as presented within

Appendix 2. The results of the analysis indicated elevated concentrations of arsenic, chromium, lead and naphthalene.

3.25 The material has been assessed against BWB’s Generic Site Assessment

Criteria (GSAC) developed by BWB using the CLEA model 1.06 and the updated CLEA framework (2009) for assessing risk from soil

contamination to human health. Details of the derivation of GSACs are presented in Appendix 3.



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3.26 The colliery spoil material has been found to be chemically suitable for use

as general fill across the site (well within a public open space assessment criteria), but it would not be suitable for use at surface level in private residential gardens. The CLEA results are presented as Appendix 1.

3.27 The ash clinker fill has been found suitable for placement as fill at depth (deeper than 2m below formation), subject to incorporation of basic

radon/ gas protection measures. The CLEA results are presented as Appendix 2.

3.28 A cover system will therefore be required in sensitive area (e.g. private

gardens), comprising delineation of the upper surface of the fill using a geotextile membrane, coupled with a surface capping layer (minimum

thickness of 500mm) of imported, chemically suitable subsoil/topsoil.

3.29 Where natural materials are removed from foundation excavations or in

order to create a level fill platform (e.g. in the vicinity of the traditional spread foundation zone described by Figure 3 or natural soils removed from the base of the bulk earthworks excavations elsewhere), these may

be segregated and, subject to compliance testing, could be utilised as subsoil within the cover system in the residential private garden areas.

3.30 Re-engineered colliery spoil soils shall be suitable for placement beneath building footprints or beneath hard stand areas.

3.31 Processed ash/clinker fill shall be suitable for placement at depths greater

than 2m below formation.



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4.0 REMEDIATION

4.1 To ensure that suitably clean material (with respect to human health) is placed during the proposed earthworks, the following validation criteria have been adopted.

4.2 The validation criteria to be adopted are based on the Generic Site Assessment Criteria (GSAC) developed by BWB using the CLEA model

1.06 and the updated CLEA framework (2009) for assessing risk from soil contamination to human health.

General Engineered Fill above 2.0m of Required Formation

4.3 Relevant pathways associated with the general fill are considered to be:

Soil Ingestion;

Dermal Contact;

Particulate Inhalation; and

Inhalation of Vapour outdoors.

4.4 Indoor inhalation pathways will be suitably mitigated by the proposed basic gas protection measures (either basic radon or appropriate

characteristic gas situation assessed and applied to the development) which are to be installed in residential properties.

4.5 The general fill will be suitable for use within 2m of final formation directly under all hardcover areas of the site, including pavements, footpaths and under building footprints. Ash/ clinker fill will not be suitable for this

purpose.

4.6 The general fill will require periodic compliance testing to ensure it is

chemically consistent. The validation criteria to be adopted for these materials, which have been designed to yield a material which would be suitable for use in a public open space, are presented as Appendix 4.

Engineered Fill Below 2.0m of Required Formation Level

4.7 Relevant pathways associated with deeper fill are considered to be:

Inhalation of vapours outdoors.

4.8 Engineered fill meeting the below criteria will be suitable for placement as fill below 2m of final formation only.

4.9 Indoor inhalation pathways will be suitably mitigated by the proposed basic gas protection measures (either basic radon or appropriate

characteristic gas situation assessed and applied to the development) which are to be installed in residential properties.



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4.10 The validation criteria to be adopted for these materials, which have been

designed to yield a material which would be suitable for placement at depth below residential properties, are presented as Appendix 5.

Imported Topsoil/ Subsoil

4.11 Relevant pathways associated with topsoil/subsoil to be provided in residential private gardens are considered to be:

Soil Ingestion;

Dermal Contact;

Particulate Inhalation;

Ingestion of Site Grown Vegetables and Attached Soil; and

Inhalation of Vapours Outdoors.

4.12 The validation criteria to be adopted for these materials (to control identified pollutant linkages) are presented as Appendix 6.

4.13 Colliery spoil and ash/clinker fill soils are not suitable for use as imported subsoil in private residential gardens; excavated natural soils will be suitable for this purpose, subject to confirmatory compliance testing.

Gas Protection Measures

4.14 Two phases of ground gas monitoring have been undertaken in monitoring

wells installed within the Phase 1A development area. The first comprised 1 no. visit on the 20th March 2009 (WS201 and WS202). The second phase of monitoring undertaken to date comprised 3 no. visits between 5th

April and 15th April 2011 (WS201, WS202, WS304 and WS305). The positions of the relevant monitoring well locations are shown on Figure 2.

It is expected, based on the monitoring undertaken, that this area of the site (i.e. in the vicinity of the area for traditional spread foundations as described by Figure 3) may be classified as Green in accordance with

CIRIA C665.

4.15 It is expected at this stage that the remainder of the site (located over

proposed engineered fill) will be classified as Amber 1. The gassing regime of the resultant development platform should be confirmed upon completion of the Earthworks.

4.16 Gas protection measures are also required to mitigate indoor inhalation pathways; furthermore it is also recommended/ advised by the Health

Protection Agency that at least basic radon protection measures should be installed in all new buildings.

4.17 Further gas monitoring should be undertaken and assessed in accordance

with CIRIA C665. It is recommended that this should be undertaken at a



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frequency of 9 events over a 6 month period (the generation potential of

the earthworks fill is considered to be low, as potential gas generation sources will be removed during the earthworks and replaced with engineered fill of very limited degradability/ organic content (to be

confirmed by validation testing); and 3 events over a 3 month period to augment the data (WS201, WS202, WS304 and WS305) obtained for

areas of the site not located on engineered fill to meet the recommended frequency of testing.



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5.0 SETTLEMENT REVIEW

5.1 This assessment provides an indication of the likely expected performance of the proposed engineered fill to prepare it for a proposed residential development. Consideration has also been given to the use of traditional

spread foundations in areas where engineered fill is not required to reach formation. A preliminary plan indicating expected foundation zones is

presented as Figure 3.

Proposed Structures

5.2 There is mixture of proposed low rise residential building types ranging

from circa 8m x 9m detached, to 10m x 18m terraced plots; it is anticipated that raft foundation loads would not exceed 35 kPa and wall

line loads for tradition spread foundations are not expected to exceed 65 kN/m.

5.3 Proposed final formations are either at or below final existing topographic levels, therefore no additional loads are expected due to additional soil surcharge.

5.4 The proposed site layout plan is included as Appendix 7.

Conceptual Ground Model

5.5 Based on the ground profile revealed by the 2011 intrusive investigation, it is evident that varying thicknesses of engineered fill will overlie cohesive Glacial Till. Hand shear vane measurements of the undrained shear

strength (cu) in the Glacial Till indicate deposits likely to be encountered at the base of the earthworks excavation are likely to exceed 100 kPa (this

concurs with SPT ‘N’ values in the order of 20, which equates to an approximate undrained shear strength of 105kPa - Stroud 1974 assuming a multiplication factor f1 of 5.2 based on a plasticity index of 20%).

5.6 Furthermore, for this material, based on an average Plasticity Index value of 20% (BWB investigation) and the relationships proposed by Stroud &

Butler (1975), the drained modulus E’ (kPa) = cu (kPa) x 230 = 23,000 MPa (modulus of compressibility mv = 1/E’ = 4.35x10-5 kPa).

5.7 The Drained Modulus of Constrained Compressibility for the earthworks fill

of E’=15 MPa (mv = 6.67x10-5 kPa) has been assumed; equivalent to the average determined by laboratory testing, as a likely value to be achieved

within the engineered fill which has been assumed to achieve a cu in the order of 80 kPa;

5.8 Typically for well compacted cohesive fill, values for the coefficient of

secondary compression, Cα, may be in the range of 0.001 to 0.005 (0.1% to 0.5%), as indicated in BRE 424, 2001; therefore 0.1% has been

adopted as the design parameter in this case (the engineered fill will be well compacted and strictly controlled).



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5.9 Resting groundwater levels recorded during the 2011 BWB investigation

revealed perched groundwater overlying the Till which are considered to present water associated with the settlement lagoons, one of which (now bypassed) was known to leak. All settlement lagoons are to be removed

during the proposed earthworks and groundwater controlled throughout, therefore no significant groundwater would be expected to be encountered

post earthworks.

Settlement Calculations

5.10 Settlement assessments have been undertaken in general accordance

with the methods outlined in Eurocode 7 (BS EN 1997-1) in order to determine the settlement Serviceability Limit State (SLS). It should be

noted that settlement calculations provide an indication of likely settlement, and should not be regarded as accurate.

5.11 The Boussinesq formula had been used to calculate the vertical stress under a loaded rectangular area; Eurocode 7 states that depth of influence may be taken as the depth at which the effective vertical stress

due to foundation load is 20% of the effective overburden stress.

5.12 Conservatively, settlement characteristics for the engineered fill are

assumed to be predominantly cohesive.

Immediate Settlement (s0)

5.13 Undrained settlements which occur virtually instantaneously on application

of load.

5.14 The adjusted elasticity method (Eurocode 7) has been utilised to calculate

immediate settlement (using the principles of superposition and layering):

5.15 s0 = p.B.f / E

5.16 (where p = applied pressure, B = width of loaded area, f = influence factor and E =

drained modulus)

Consolidation Settlement (s1)

5.17 Drained consolidation caused by the applied load of the proposed structure.

5.18 The odometer (one-dimensional deformation) method of assessing consolidation settlement has been utilised, adopting Skempton and Bjerrum (1957) empirical correction factors allowed by Eurocode 7 (using

the principle of layering):

5.19 S1 = σapp.mv.h.μ

5.20 (where mv = 1/E’, h = soil thickness, σapp= applied stress and μ= correction factor)



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Inundation Settlement - Collapse Compression (s2)

5.21 Settlement induced by recovering groundwater levels.

5.22 The vulnerability to collapse compression is linked to the bulk permeability of the clay fill. The cohesive fill is to be placed according to a specification

which will result in a voids ratio less of than 5%. This will generally lead to the placed material achieving a permeability within the range 1x10-9 to

1x10-10 m/s. BRE 424:2001 indicates that engineered materials of such low permeability are not vulnerable to collapse compression.

Secondary Compression (s2)

5.23 The long term ‘creep’ consolidation of fill material caused by the self weight of the fill.

5.24 An estimate of the time dependant secondary settlement due to self weight of the fill is given by:

5.25 Δh =h.Cα.log (t2/t1) (BRE 421:2001)

5.26 Δh= secondary compression settlement, h = depth of fill, Cα = coefficient of secondary

compression

5.27 Given the expected length of time for deposition of the fill up to final formation and completion of the proposed development, for the

construction phase of secondary compression, t1=1 years and t2=50 years will be adopted for the purpose of this assessment.

Settlement Results

Engineered Fill

Table 1:

Depth of Engineered

Fill

Immediate Settlement

(s0)

Consolidation Settlement

(s1)

Secondary Settlement

(s2)

s0 + s1 stotal

(after 50

years)

(m) (mm) (mm) (mm) (mm) (mm)

1 0.9 11.6 1.7 13 14

2 0.9 12.4 3.4 13 17

3 0.9 13.2 5.1 14 19

4 1.0 14.1 6.8 15 22

5 1.0 14.9 8.5 16 24

6 1.0 15.7 10.2 17 27

7 1.1 16.4 11.9 18 29

5.28 The results above indicate that total predicted settlements of proposed low rise semi rigid raft founded structures are unlikely to exceed 25mm

within several years after completion of development (immediate and



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consolidation settlements); this will increase to less than 30mm after 50

years.

5.29 Maximum predicted differential settlements after 50 years will be in the order of 15mm (between 1m and 7m of fill); should this occur over a

minimum raft dimension of 8m this would result in a differential settlement in the order of 1:530 (less than 1:500 recommended in

Eurocode 7, and less than 1:400 suggested in BRE Digest 475 for low rise buildings.

5.30 It is unlikely that such variation in fill thickness would occur beneath

single plot area, as the base of excavation is limited to 1:10 (equivalent to a change in fill less that 10% across single plot areas) resulting in

differential settlement significantly less the maximum calculated.

Traditional Spread

5.31 Settlement assessment has indicated that total settlement for traditional strip foundation would be less that 15mm based on assessment of 0.6m wide wall line loads up to 65 kN/m for strip foundations placed on the stiff

glacial till. Differential settlements are considered to be negligible by calculation.

5.32 The volume change potential should be considered in any foundation schedule for structures and services located within the influence zone of trees or bushes (proposed, existing or to be removed) and appropriate

precautions and/or founding depths should be designed accordingly.

5.33 In areas where shallow or trench fill foundations are to be employed in the

predominantly high plasticity clays with a low to medium volume change potential (Plastic Limit ranging between 14% and 26%), it is recommended that foundations are designed in accordance with NHBC

Standards Chapter 4.2 (2011) with respect to building near trees.



SEPTEMBER 2013

NTE2034E/01/V5

17

6.0 EARTHWORKS PRINCIPLES

6.1 The existing ash and clinker fill with associated brick structure and other extraneous items are to be excavated and removed and the existing settlement lagoons are to be drained, and organic matter, lagoon

deposits/ soft soils removed to reveal the underlying competent strata (Glacial Till).

6.2 Full details of the proposed earthworks are presented within the BWB Earthworks Specification report, reference NTE2042E/02/V2, dated June 2012 and the following earthworks drawings (or latest revision):

BWB Drawing reference NTE/2034/HD100 P2, Proposed Formation Level Contours;

BWB Drawing reference NTE/2034/HD101 P2, Base of Excavation Contour Levels;

BWB Drawing reference NTE/2034/HD102 P2, Earthworks Sections; and

BWB Drawing reference NTE/2034/HD103 P2, Isopachytes

Excavation to Formation.

6.3 The resultant void is to be backfilled with suitable colliery spoil both site

won and sourced from the wider colliery site, appropriately classified as Class 1 or Class 2 in accordance with Specification for Highway Works (SHW) and placed following the general method principles set out in the

SHW achieving the end specification detailed below.

Material Quantities

6.4 Based on the proposed earthworks models, it is expected that approximately 137,700m3 of material is required to be excavated, of which approximately 60,000m3 is ash and clinker fill which is expected to

lose 25% to 30% volume due to removal of unsuitable material and compaction. Approximately 95,000m3 is estimated to be required to fill

the resultant void to formation; leaving a requirement for approximately 30,000m3 of colliery spoil to be disposed off-site.

End Specification

6.5 This material should be placed in an engineered fashion in order to meet an end specification, to ensure that 95% of the maximum dry density is

achieved for all fill, to be placed within +4% and -2% of optimum moisture content, as determined by laboratory testing. In addition to this, less than 5% total air void criteria will be enforced.

6.6 In order to ensure that the engineered fill is suitable for the proposed residential development, a minimum expected modulus of subgrade

reaction (K) of at least 14,000 kN/m2/m (which equates to a minimum



SEPTEMBER 2013

NTE2034E/01/V5

18

settlement of 10 mm based on 200% of the maximum expected design

load of 35 kPa) will be required. This modulus subgrade reaction is approximately equivalent to a CBR of 3%.

6.7 To ensure that an appropriate level of compaction has been achieved

insitu CBR testing (DCP or MEXE Probe) to be undertaken on a 50m grid per layer (minimum 3no. tests per layer) to achieve an average CBR of

4% with no single test result less than 3% is achieved to ensure to achieved.

6.8 On completion of the earthworks, monument settlement markers shall be

placed across the engineered fill and monitored for a period of 6 weeks following completion of the earthworks.

6.9 Maintained area load tests should be undertaken at formation (in accordance with the methods detailed in BS1377-9:1990). A minimum of

three tests shall be completed over the deepest areas of fill with an applied load equivalent to 150% of the proposed design pressure (i.e. 35kPa x 150% = 52.5kPa), and should be maintained for a period of 6

weeks. Level monitoring should be undertaken immediately after each incremental load is applied then 1hour, 24 hrs, 2 days, 7 days, 12 days,

22 days and 42 days (6 weeks) after final loading then immediately after unloading of the two equal increments applied. Maximum ‘maintained load’ settlement deviation criteria of less than 25mm over the 6 week

period will be acceptable.

BWB Consulting Ltd November 2013

FIGURES

FIGURE 2

SITE LAYOUT AND MONITORING WELL LOCATION PLAN

MH

R

27

26

26

26

26

25

25

26

27

28

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3-4 Kayes W

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0115 924 11000115 950 3966

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Figure 2: S

ite Layout andInvestigation Location P

lan

Phase 1A

, Harw

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Jones Hom

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FIGURE 3

LIKELY FOUNDATION SOLUTION ZONES

MH

R

27

26

26

26

26

25

25

26

27

28

28

29

29

29

29

30

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2

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21

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3-4 Kayes W

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0115 924 11000115 950 3966

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water

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civilstructural

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FW

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Figure 3: P

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Phase 1A

, Harw

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Jones Hom

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APPENDICES

APPENDIX 1

CLEA STATISTICAL ASSESSMENT – COLLIERY SPOIL

STATISTICAL APPROACH FOR ASSESSING RISK TO HUMAN HEALTH FROM CONTAMINATED LAND 2008

CIEH/CLAIRE Guidance on Comparing Soil Contamination Data with a Critical Concentration May 2008

STAGE 2 DATA SCREENING

STAGE 3 ZONING AND

OUTLIER CHECK

STAGE 4UPPER CONFIDENCE

LIMIT

Compare all data against GSACDo any values exceed GSAC?

With outliers removed are data normally DistributedHistogram

Shapiro Wilkes test, q-q plot

With outliers removed do any values exceed GSAC ?

True mean is less thancritical concentrationNo action required

Normal Distributed dataUCL from

Students t-test

Non-normal Distributed dataUCL from

Chebychev theorem

Yes

Yes

yes

No

No

Compare UCL to GSACDoes UCL exceed GSAC?

Yes

No

true mean is greater thancritical concentration

Further action required



STAGE 1QA CHECK

Are data of acceptable qualityLab sampling errors / eroneous resultsAre data sufficient to characterise area

of interestNo

Review CSM, update sampling and

analytical strategy

Non detects to DL or DL/2Remove outliers

Normal Non-normal

OutliersAssess Outliers directly against

GSAC

Plot data on bubble chartPlot histogram

Identify and deal with non detects

Harworth Phase 1A Development NTE2034

Key Receptor (Residential / Commercial)

Public Open Space (Playing Field)

Exposure Pathway Selection(Residential/Commercial scenarios only) Residential CommercialSoil Ingestion, dermal contact, particulate inhalation

TRUE TRUE TRUEIngestion of site grown vegetables and soil attached to vegetables FALSE Optional FALSEInhalation of vapours Indoors TRUE TRUE TRUEInhalation of vapours Outdoors TRUE TRUE TRUE

pH (Only required for vegetable uptake pathway) 7V3.04, October 2009

Colliery Spoil

Default pathways

Human Health Generic QRA Worksheet

Generic Assessment Criteria

Harworth Phase 1A Development Public Open NTE2034 mg/kg SourceArsenic 1.25E+02 BWBBarium 6.66E+04 BWBBeryllium 3.77E+02 BWBBoron 5.33E+04 BWBCadmium 1.11E+02 BWBChromium VI 5.78E+02 BWBCopper 5.33E+04 BWBLead* 4.50E+02 SGVInorganic Mercury 1.28E+03 BWBNickel 3.76E+03 BWBSelenium 3.63E+03 BWBVanadium 1.58E+03 BWBZinc 2.49E+05 BWBCyanide (Free) 4.30E+01 SNIFFERCyanide (Complex) 2.13E+02 SNIFFERPhenols (Total) 8.89E+02 BWBEthyl benzene 5.18E+02 BWBm-Xylene 6.25E+02 BWBp-Xylene 5.76E+02 BWBo-Xylene 4.78E+02 BWBTPH (EC5-6) aliphatic 2.29E+02 BWBTPH (>EC6-8) aliphatic 5.95E+02 BWBTPH (>EC8-10) aliphatic 1.60E+02 BWBTPH (>EC10-12) aliphatic 8.53E+02 BWBTPH (>EC12-16) aliphatic 3.02E+03 BWBTPH (>EC16-21) aliphatic 1.27E+05 BWBTPH (>EC21-35) aliphatic 1.27E+05 BWBTPH (>EC35-44) aliphatic 1.27E+05 BWBTPH (>EC6-7) aromatic (benzene) 1.37E+01 BWBTPH (>EC7-8) aromatic (toluene) 8.69E+02 BWBTPH (>EC8-10) aromatic 2.49E+02 BWBTPH (>EC10-12) aromatic 1.06E+03 BWBTPH (>EC12-16) aromatic 2.45E+03 BWBTPH (>EC16-21) aromatic 2.57E+03 BWBTPH (>EC21-35) aromatic 2.77E+03 BWBTPH (>EC35-44) aromatic 2.77E+03 BWBNaphthalene 1.18E+02 BWBAcenaphthylene 5.94E+00 BWBAcenaphthene 1.76E+02 BWBFluorene 7.19E+03 BWBPhenanthrene 4.63E+02 BWBAnthracene 5.50E+04 BWBFluoranthene 8.40E+01 BWBPyrene 8.05E+02 BWBBenzo(a)anthracene 1.51E+01 BWBChrysene 1.42E+02 BWBBenzo(b)fluoranthene 1.72E+01 BWBBenzo(k)fluoranthene 1.87E+01 BWBBenzo(a)pyrene 1.81E+00 BWBIndeno(1,2,3-c,d)pyrene 1.65E+01 BWBDibenzo(a,h)anthracene 1.99E+00 BWBBenzo(g,hi)perylene 5.57E+03 BWBTetrachloroethene (PCE) 1.14E+02 BWBTrichloroethene (TCE) 8.49E+00 BWBcis -1,2-Dichloroethene 0.00E+00 EICVinyl Chloride (VC) 4.06E-02 BWB1,1,2,2-Tetrachloroethane (PCA) 1.75E+02 BWB1,1,1-Trichloroethane (TCA) 5.05E+02 BWB1,2-Dichloroethane 4.82E-01 BWBCarbon Tetrachloride 1.65E+00 BWB

Lo

cati

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dep

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East

ing

No

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ing

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rface

Level

Ars

en

ic

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m

Bo

ron

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Ch

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ium

III

Ch

rom

ium

VI

Co

pp

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Lead

Detection Limit 0.6 0.6 0.01 1 0.02 0.9 0.6 1.4 0.7GSAC 1.25E+02 6.66E+04 3.77E+02 5.33E+04 1.11E+02 0.00E+00 5.78E+02 5.33E+04 4.50E+02SAMPLE 514 (BUND) - 66.5 109 0.803 1 0.0855 39.3 43.7 23.4TP501 1.50- 99.8 81.4 0.702 1 0.264 8.57 76.5 37.1TP502 0.00-2.00 23.6 103 0.903 1 0.137 10 46.3 24.9TP503 0.00-1.00 35.2 181 0.799 1 0.255 19.9 34.9 24.5TP504 0.00-1.80 32.1 219 0.939 1 0.297 14.9 57.7 40.5TP505 (BUND) - 38.9 161 0.909 1 0.231 11.2 57.8 33.3TP506 0.00-3.00 37.9 221 1.27 1 0.244 11.5 61.6 44TP507 0.40-2.00 18.2 245 0.699 1 1.25 16 35.9 48.7TP508 1.50- 48.1 154 0.505 1 0.136 8.22 39.7 28.4TP509 (STOCKPILE) - 44.1 168 0.457 1 0.276 7.39 48.8 28TP510 0.30-3.00 68.5 89.5 0.25 1 0.136 9.4 29.7 22.2TP511 0.20-2.30 57.9 173 0.401 1 0.146 34.6 32.8 22.1TP512 0.30-1.30 32.7 117 0.313 1 0.151 18.9 23.3 26.5TP513 0.60-2.50 20.2 147 1.41 1 0.291 9.37 45.8 35.3TP11 2.00- 24.7 349 0.293 1 0.394 18.5 643 51.2WS107 1.00- 97.8 157 0.01 1 0.163 13.4 32.8 33.9

Lo

cati

on

Sam

ple

dep

th

Detection LimitGSACSAMPLE 514 (BUND) -TP501 1.50-TP502 0.00-2.00TP503 0.00-1.00TP504 0.00-1.80TP505 (BUND) -TP506 0.00-3.00TP507 0.40-2.00TP508 1.50-TP509 (STOCKPILE) -TP510 0.30-3.00TP511 0.20-2.30TP512 0.30-1.30TP513 0.60-2.50TP11 2.00-WS107 1.00-

Ino

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Nic

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Sele

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Van

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Cyan

ide (

Fre

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Cyan

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Co

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lex)

Ph

en

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(T

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Eth

yl

ben

zen

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m-X

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TP

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5-6

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TP

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-8)

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0.14 0.2 1 0.2 1.9 1 1 0.035 0.003 0.006 0.006 0.003 0.01 0.01 0.011.28E+03 3.76E+03 3.63E+03 1.58E+03 2.49E+05 4.30E+01 2.13E+02 8.89E+02 5.18E+02 6.25E+02 5.76E+02 4.78E+02 2.29E+02 5.95E+02 1.60E+02

0.14 27.9 1 32.5 31.3 1 1 0.181 0.003 0.006 0.006 0.003 0.01 0.0373 0.01360.778 26.2 3.24 11.4 40.4 1 1 0.035 0.003 0.00784 0.00784 0.00448 0.056 0.179 0.04140.142 23.4 1 11.5 61.8 1 1 0.035 0.003 0.006 0.006 0.003 0.0155 0.0588 0.01780.14 38.3 1 18.3 56.9 1 1 0.035 0.003 0.006 0.006 0.003 0.0109 0.0415 0.0131

0.266 26.7 1 17.8 76 1 1 0.035 0.00351 0.00702 0.00702 0.00468 0.0199 0.0655 0.03040.24 25.5 1.76 15.9 43.8 1 1 0.035 0.003 0.006 0.006 0.00339 0.017 0.052 0.035

0.317 29.3 1.71 19.9 56.8 1 1 0.035 0.003 0.006 0.006 0.003 0.0148 0.049 0.01940.244 17.1 1 17.4 128 1 1 0.035 0.003 0.006 0.006 0.003 0.01 0.0376 0.01480.14 11.3 1.18 11.5 30.6 1 1 0.157 0.003 0.006 0.006 0.003 0.0101 0.0426 0.01

0.156 13.9 1.66 10.4 29.3 1 3.07 0.035 0.003 0.006 0.006 0.003 0.0121 0.0375 0.01450.14 11.3 1 9.88 21.4 1 1 0.035 0.003 0.006 0.006 0.003 0.01 0.0348 0.01510.14 18.2 1 26 37.3 1 1 0.035 0.003 0.006 0.006 0.003 0.0124 0.0509 0.01920.14 10.6 1.54 19.9 28.4 1 1 0.035 0.003 0.00678 0.00678 0.003 0.0158 0.0644 0.01920.14 32.3 1.28 12.7 57.5 1 1 0.035 0.00452 0.0192 0.0192 0.00791 0.0633 0.179 0.05990.14 35.8 1 19.6 780 1 1 0.1 0.00578 0.0196 0.0196 0.00924 0.0497 0.126 0.0589

0.144 15.1 2 16.9 32.8 1 1 0.1 0.003 0.006 0.006 0.003 0.012 0.0405 0.0197

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ali

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TP

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TP

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TP

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TP

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TP

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TP

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0.01 0.1 0.1 0.1 0.1 0.01 0.01 0.01 0.01 0.1 0.1 0.1 0.1 0.0098.53E+02 3.02E+03 1.27E+05 1.27E+05 1.27E+05 1.37E+01 8.69E+02 2.49E+02 1.06E+03 2.45E+03 2.57E+03 2.77E+03 2.77E+03 1.18E+02

0.0102 4.61 4.73 11.3 0.1 0.01 0.01 0.0124 0.01 6.2 9.54 15.7 6.41 2.50.0224 11.9 12.5 24.1 2.31 0.01 0.0101 0.0426 0.0146 32 33.2 59.6 15 5.640.0133 9.81 11.9 21.5 2.52 0.01 0.01 0.0178 0.01 23.4 22.7 39 7.11 3.92

0.01 10.6 13 23.2 1.79 0.01 0.01 0.0186 0.01 16.8 17.3 33.4 6.14 2.140.0222 10 14.8 46.6 15.6 0.0105 0.01 0.0363 0.0152 17.9 26.7 60.4 22.8 2.60.0452 24.9 43.8 125 51.1 0.01 0.01 0.0328 0.0305 34.6 51.6 101 39.3 12.50.0171 15.9 19.2 30.5 2.92 0.01 0.01 0.0194 0.0114 38.8 50.9 94.8 22 8.760.0125 12.4 18.2 89.7 26.5 0.01 0.01 0.0125 0.01 27.3 36.9 120 46.7 7.07

0.01 17.1 17.2 19.8 0.1 0.01 0.01 0.0123 0.01 34.3 34.6 58.1 7.17 2.210.0121 21.2 33 82.8 39.1 0.01 0.01 0.0157 0.01 26.8 46.2 127 70.1 5.2

0.01 8.21 6.58 9.03 0.1 0.01 0.01 0.0128 0.01 10.8 14.6 19.5 1.85 2.90.0158 7.1 7.29 13.1 0.1 0.01 0.01 0.0203 0.0102 9.91 12.3 22.2 3.37 2.640.0124 9.95 8.76 15.3 0.1 0.01 0.0113 0.0237 0.01 34.9 194 2150 322 2.650.0362 19 17.6 21.5 0.1 0.0158 0.0226 0.0712 0.0249 35.6 35.1 59.6 15.5 4.280.0809 15.7 10.1 21.6 2.35 0.0173 0.0231 0.0739 0.0543 28.8 22.9 50.9 16.1 0.8630.0142 25.5 9.42 19.4 1.47 0.01 0.01 0.0208 0.01 42.5 24.6 46.2 18.4 1.85

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Dib

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0.012 0.008 0.01 0.015 0.016 0.017 0.015 0.014 0.01 0.015 0.014 0.015 0.018 0.023 0.0245.94E+00 1.76E+02 7.19E+03 4.63E+02 5.50E+04 8.40E+01 8.05E+02 1.51E+01 1.42E+02 1.72E+01 1.87E+01 1.81E+00 1.65E+01 1.99E+00 5.57E+03

0.012 0.00976 0.0325 0.81 0.0354 0.1 0.0965 0.0732 0.0806 0.0687 0.0162 0.0419 0.018 0.023 0.1110.012 0.0699 0.134 1.92 0.217 0.456 0.465 0.321 0.292 0.327 0.0718 0.193 0.101 0.0573 0.328

0.0135 0.0266 0.0648 1.35 0.137 0.288 0.304 0.194 0.187 0.215 0.0577 0.124 0.0603 0.0344 0.2770.012 0.0148 0.0385 0.679 0.0458 0.119 0.126 0.116 0.104 0.109 0.0312 0.0738 0.0319 0.023 0.08360.012 0.0484 0.0831 0.884 0.0806 0.297 0.281 0.177 0.169 0.183 0.066 0.125 0.0921 0.0688 0.2

0.0897 0.554 0.669 4.9 1.06 3.04 3.32 1.45 1.03 1.79 0.563 1.35 0.588 0.209 1.040.0314 0.173 0.21 4.31 0.507 2.24 1.86 1.2 0.994 1.37 0.422 0.833 0.384 0.159 0.7470.0346 0.0701 0.117 2.58 0.295 1.01 0.941 0.569 0.556 0.685 0.209 0.451 0.231 0.0986 0.5350.012 0.0176 0.0269 0.857 0.0568 0.39 0.366 0.213 0.238 0.274 0.1 0.179 0.107 0.041 0.181

0.0152 0.045 0.0481 2.8 0.115 0.724 0.594 0.337 0.438 0.496 0.0943 0.169 0.119 0.0686 0.3690.012 0.008 0.0203 1.18 0.034 0.139 0.131 0.102 0.142 0.111 0.0208 0.0402 0.0246 0.023 0.1110.012 0.0111 0.0304 0.927 0.0386 0.141 0.142 0.125 0.13 0.109 0.0218 0.0568 0.0311 0.023 0.1070.012 0.0233 0.0348 0.951 0.0546 0.23 0.208 0.13 0.149 0.147 0.033 0.0799 0.0441 0.023 0.0894

0.0561 0.0463 0.134 2.19 0.182 0.835 0.704 0.386 0.351 0.409 0.13 0.274 0.117 0.0506 0.2660.012 0.0104 0.0237 0.286 0.0284 0.12 0.102 0.0712 0.0625 0.0658 0.0241 0.0386 0.0278 0.023 0.0530.012 0.008 0.0366 0.531 0.0252 0.0682 0.0726 0.0642 0.0596 0.0449 0.014 0.0248 0.018 0.023 0.0549

Date Version Author Checked Authorisation Notes

17/09/2008 1 TJH Initial beta issue

23/10/2008 2 TJH Lognormal outlier test added, bug fixes

06/02/2009 3 TJH Revised CLEA 2008 GSACs

15/04/2009 3.01 TJH Revised 2009 TOX reports for Hg, Se, BTEX, Soil saturation limit added

04/06/2009 3.02 TJH Revised 2009 TOX reports for As, Ni, Outlier test updated, format changes to report sheet

22/07/2009 3.03 TJH Revised 2009 TOX reports for Phenol and Cadmium

19/10/2009 3.04 TJH Non standard landuses added for schools and playing fields

20/03/2012 3.05 TJH Cr VI and Cr III added

APPENDIX 2

CLEA STATISTICAL ASSESSMENT – ASH/CLINKER FILL

STATISTICAL APPROACH FOR ASSESSING RISK TO HUMAN HEALTH FROM CONTAMINATED LAND 2008

CIEH/CLAIRE Guidance on Comparing Soil Contamination Data with a Critical Concentration May 2008

STAGE 2 DATA SCREENING

STAGE 3 ZONING AND

OUTLIER CHECK

STAGE 4UPPER CONFIDENCE

LIMIT

Compare all data against GSACDo any values exceed GSAC?

With outliers removed are data normally DistributedHistogram

Shapiro Wilkes test, q-q plot

With outliers removed do any values exceed GSAC ?


Normal Distributed dataUCL from

Students t-test

Non-normal Distributed dataUCL from

Chebychev theorem

Yes

Yes

yes

No

No

Compare UCL to GSACDoes UCL exceed GSAC?

Yes

No

true mean is greater thancritical concentration

Further action required



STAGE 1QA CHECK

Are data of acceptable qualityLab sampling errors / eroneous resultsAre data sufficient to characterise area

of interestNo

Review CSM, update sampling and

analytical strategy

Non detects to DL or DL/2Remove outliers

Normal Non-normal

OutliersAssess Outliers directly against

GSAC

Plot data on bubble chartPlot histogram

Identify and deal with non detects

Harworth Phase 1A Development NTE2034

Key Receptor (Residential / Commercial) Residential

Exposure Pathway Selection(Residential/Commercial scenarios only) Residential CommercialSoil Ingestion, dermal contact, particulate inhalation

FALSE TRUE TRUEIngestion of site grown vegetables and soil attached to vegetables TRUE Optional FALSEInhalation of vapours Indoors FALSE TRUE TRUEInhalation of vapours Outdoors TRUE TRUE TRUE

pH (Only required for vegetable uptake pathway) 7V3.04, October 2009

Ash/Clinker Fill

Default pathways

Human Health Generic QRA Worksheet


Harworth Phase 1A Development ResidentialNTE2034 mg/kg SourceArsenic Not of concern BWBBarium Not of concern BWBBeryllium Not of concern BWBBoron Not of concern BWBCadmium Not of concern BWBChromium VI Not of concern BWBCopper Not of concern BWBLead* Not of concern SGVInorganic Mercury Not of concern BWBNickel Not of concern BWBSelenium Not of concern BWBVanadium Not of concern BWBZinc Not of concern BWBCyanide (Free) Not of concern SNIFFERCyanide (Complex) Not of concern SNIFFERPhenols (Total) 4.53E+02 BWBEthyl benzene 1.07E+02 BWBm-Xylene 2.05E+02 BWBp-Xylene 1.93E+02 BWBo-Xylene 1.87E+02 BWBTPH (EC5-6) aliphatic 9.65E+03 BWBTPH (>EC6-8) aliphatic 3.28E+04 BWBTPH (>EC8-10) aliphatic 2.28E+03 BWBTPH (>EC10-12) aliphatic 1.72E+04 BWBTPH (>EC12-16) aliphatic 2.06E+05 BWBTPH (>EC16-21) aliphatic 1.01E+07 BWBTPH (>EC21-35) aliphatic 1.01E+07 BWBTPH (>EC35-44) aliphatic 1.01E+07 BWBTPH (>EC6-7) aromatic (benzene) 1.13E-01 BWBTPH (>EC7-8) aromatic (toluene) 1.48E+02 BWBTPH (>EC8-10) aromatic 7.44E+01 BWBTPH (>EC10-12) aromatic 9.70E+01 BWBTPH (>EC12-16) aromatic 1.67E+02 BWBTPH (>EC16-21) aromatic 3.45E+02 BWBTPH (>EC21-35) aromatic 2.66E+03 BWBTPH (>EC35-44) aromatic 2.66E+03 BWBNaphthalene 2.72E+01 BWBAcenaphthylene 8.07E+00 BWBAcenaphthene 2.31E+02 BWBFluorene 8.53E+02 BWBPhenanthrene 6.58E+02 BWBAnthracene 1.30E+04 BWBFluoranthene 5.55E+01 BWBPyrene 4.92E+02 BWBBenzo(a)anthracene 2.67E+01 BWBChrysene 1.84E+02 BWBBenzo(b)fluoranthene 3.74E+01 BWBBenzo(k)fluoranthene 5.39E+01 BWBBenzo(a)pyrene 4.64E+00 BWBIndeno(1,2,3-c,d)pyrene 3.08E+01 BWBDibenzo(a,h)anthracene 6.96E+00 BWBBenzo(g,hi)perylene 2.41E+04 BWBTetrachloroethene (PCE) 1.07E+01 BWBTrichloroethene (TCE) 2.85E+00 BWBcis -1,2-Dichloroethene 1.75E+00 EICVinyl Chloride (VC) 3.70E-03 BWB1,1,2,2-Tetrachloroethane (PCA) 2.72E+00 BWB1,1,1-Trichloroethane (TCA) 3.22E+02 BWB1,2-Dichloroethane 3.07E-02 BWBCarbon Tetrachloride 3.74E+01 BWB

Locati

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Detection Limit 0.6 0.6 0.01 1 0.02 0.9 0.6 1.4 0.7GSAC Not of concernNot of concernNot of concernNot of concernNot of concernNot of concernNot of concernNot of concernNot of concernBH1 3.00-4.00 102 196 2.02 5.72 1.02 21.1 121 97BH2 1.00-2.00 56.5 399 3.67 4.42 0.856 26.4 323 204BH3 1.00-2.00 34.6 346 3.23 7.33 2.12 22.8 125 113WS101 0.10-0.20 16.2 171 0.772 1.41 0.524 14.1 52.7 68.2WS106 0.50-1.00 102 140 2 5.3 1.62 52.5 1080 1120WS107 1.00- 97.8 157 0.01 1 0.163 13.4 32.8 33.9

Locati

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Sam

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Detection LimitGSACBH1 3.00-4.00BH2 1.00-2.00BH3 1.00-2.00WS101 0.10-0.20WS106 0.50-1.00WS107 1.00-

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0.14 0.2 1 0.2 1.9 1 1 0.035 0.003 0.006 0.006 0.003 0.01 0.01 0.01Not of concernNot of concernNot of concernNot of concernNot of concernNot of concernNot of concern4.53E+02 1.07E+02 2.05E+02 1.93E+02 1.87E+02 9.65E+03 3.28E+04 2.28E+03

0.14 49.3 10 46.9 86.2 1 1 0.1 0.00476 0.0107 0.0107 0.00476 0.0345 0.0988 0.03450.14 43 1 60.3 318 1 1 0.1 0.00633 0.0253 0.0253 0.0114 0.0949 0.231 0.05440.14 43.9 1 58.4 2520 1 1 0.1 0.00389 0.0155 0.0155 0.00648 0.0453 0.111 0.03370.14 19.1 1 27.4 154 1 1 0.1 0.003 0.006 0.006 0.003 0.01 0.0125 0.010.14 78.2 5 90.3 640 1 1 0.1 0.003 0.006 0.006 0.003 0.01 0.01 0.01

0.144 15.1 2 16.9 32.8 1 1 0.1 0.003 0.006 0.006 0.003 0.012 0.0405 0.0197

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0.01 0.1 0.1 0.1 0.1 0.01 0.01 0.01 0.01 0.1 0.1 0.1 0.1 0.0091.72E+04 2.06E+05 1.01E+07 1.01E+07 1.01E+07 1.13E-01 1.48E+02 7.44E+01 9.70E+01 1.67E+02 3.45E+02 2.66E+03 2.66E+03 2.72E+01

0.0226 28.3 16.8 38.6 4.37 0.01 0.0274 0.0428 0.0155 43.6 33.1 57.7 15.3 6.350.0278 15.9 14.2 45.1 5.33 0.0215 0.0746 0.0797 0.019 24.2 27 74.1 23.9 2.530.0168 24.6 19.2 33 3.68 0.01 0.035 0.0479 0.0117 55.7 47.3 100 27.3 2.91

0.01 10.9 7.93 16.1 1.66 0.01 0.01 0.0114 0.01 16.4 13.9 34.2 7.81 0.4690.01 4.63 0.699 2.22 0.162 0.01 0.01 0.01 0.01 1.03 3.64 0.643 1.04 0.191

0.0142 25.5 9.42 19.4 1.47 0.01 0.01 0.0208 0.01 42.5 24.6 46.2 18.4 1.85

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0.012 0.008 0.01 0.015 0.016 0.017 0.015 0.014 0.01 0.015 0.014 0.015 0.018 0.023 0.0248.07E+00 2.31E+02 8.53E+02 6.58E+02 1.30E+04 5.55E+01 4.92E+02 2.67E+01 1.84E+02 3.74E+01 5.39E+01 4.64E+00 3.08E+01 6.96E+00 2.41E+04

0.124 0.0247 0.0359 1.85 0.122 0.568 0.516 0.366 0.363 0.403 0.133 0.214 0.114 0.0534 0.2750.0372 0.0266 0.0339 1.29 0.209 1.51 1.19 0.843 0.629 1.11 0.347 0.657 0.313 0.105 0.4940.0591 0.0317 0.0438 1.3 0.208 1.18 0.922 0.611 0.445 0.672 0.23 0.437 0.2 0.0719 0.3450.0174 0.0149 0.0135 0.347 0.0519 0.486 0.41 0.217 0.212 0.266 0.117 0.186 0.116 0.0374 0.1750.012 0.008 0.01 0.0472 0.016 0.017 0.015 0.014 0.01 0.015 0.014 0.015 0.018 0.023 0.0240.012 0.008 0.0366 0.531 0.0252 0.0682 0.0726 0.0642 0.0596 0.0449 0.014 0.0248 0.018 0.023 0.0549

Residential Pathway Specific Assessment Sub Criteria derived March 2009

Vapour Inhalation (Indoors)

Vapour Inhalation (Outdoors)

Soil Ingestion

Ingestion of Contaminated

Vegetables and soil attached to vegetables

Dermal contact

Particulate Dust

Inhalation

Residential GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) mg/kgArsenic NR NR 4.04E+01 4.29E+02 2.62E+02 8.50E+01 Not of concernBarium NR NR 1.35E+04 1.48E+03 NR 4.25E+06 Not of concernBeryllium NR NR 1.56E+02 1.03E+03 NR 2.89E+01 Not of concernBoron NR NR 1.08E+04 1.50E+02 NR 3.40E+06 Not of concernCadmium NR NR 1.20E+02 1.22E+01 1.64E+04 1.82E+02 Not of concernChromium III NR NR 1.44E+04 1.91E+04 NR 4.53E+06 Not of concernChromium VI NR NR 3.06E+02 4.05E+02 NR 4.25E+01 Not of concernCopper NR NR 1.08E+04 5.13E+03 NR 3.40E+06 Not of concernLead Not of concernInorganic Mercury NR NR 2.62E+02 5.81E+02 NR 2.55E+03 Not of concernNickel NR NR 8.09E+02 1.64E+03 3.15E+04 1.27E+02 Not of concernSelenium NR NR 5.97E+02 8.51E+02 NR 1.88E+05 Not of concernVanadium NR NR 2.30E+02 1.82E+02 NR 8.29E+03 Not of concernZinc NR NR 4.37E+04 5.82E+03 NR 1.38E+07 Not of concernCyanide (free) Not of concernCyanide (Complex) Not of concernPhenol 5.89E+02 5.52E+05 9.17E+04 4.53E+02 6.63E+02 3.22E+05 4.53E+02Ethylbenzene 1.70E+02 1.79E+06 1.34E+04 1.07E+02 2.62E+04 9.01E+06 1.07E+02m-xylene 5.56E+01 5.04E+05 2.42E+04 2.05E+02 4.71E+04 2.19E+06 2.05E+02p-xylene 5.34E+01 4.94E+05 2.42E+04 1.93E+02 4.71E+04 2.19E+06 1.93E+02o-xylene 5.98E+01 5.23E+05 2.42E+04 1.87E+02 4.71E+04 2.19E+06 1.87E+02TPH (EC5-6) aliphatic 2.97E+00 2.53E+06 6.74E+05 9.69E+03 1.01E+06 1.12E+08 9.65E+03TPH (>EC6-8) aliphatic 7.75E+00 4.08E+06 6.74E+05 3.30E+04 1.01E+06 1.12E+08 3.28E+04TPH (>EC8-10) aliphatic 2.14E+00 4.99E+05 6.74E+03 2.29E+03 1.01E+04 6.08E+06 2.28E+03TPH (>EC10-12) aliphatic 1.27E+01 1.22E+06 6.74E+03 1.75E+04 1.01E+04 6.08E+06 1.72E+04TPH (>EC12-16) aliphatic 6.38E+01 2.73E+06 6.74E+03 2.23E+05 1.01E+04 6.08E+06 2.06E+05TPH (>EC16-21) aliphatic 7.35E+03 7.74E+07 1.35E+05 1.16E+07 2.02E+05 4.25E+07 1.01E+07TPH (>EC21-35) aliphatic 7.35E+03 7.74E+07 1.35E+05 1.16E+07 2.02E+05 4.25E+07 1.01E+07TPH (>EC35-44) aliphatic 7.35E+03 7.74E+07 1.35E+05 1.16E+07 2.02E+05 4.25E+07 1.01E+07TPH (>EC6-7) aromatic (benzene)2.69E-01 5.63E+03 3.91E+01 1.13E-01 7.61E+01 5.95E+04 1.13E-01TPH (>EC7-8) aromatic (toluene)6.26E+02 8.62E+06 3.00E+04 1.48E+02 5.84E+04 5.81E+07 1.48E+02TPH (>EC8-10) aromatic 3.64E+00 2.91E+05 2.70E+03 7.45E+01 4.04E+03 1.21E+06 7.44E+01TPH (>EC10-12) aromatic 2.18E+01 7.11E+05 2.70E+03 9.71E+01 4.04E+03 1.21E+06 9.70E+01TPH (>EC12-16) aromatic 1.23E+02 1.68E+06 2.70E+03 1.67E+02 4.04E+03 1.21E+06 1.67E+02TPH (>EC16-21) aromatic 9.47E+02 3.34E+06 2.02E+03 3.45E+02 3.03E+03 6.37E+05 3.45E+02TPH (>EC21-35) aromatic 1.21E+05 2.50E+07 2.02E+03 2.66E+03 3.03E+03 6.37E+05 2.66E+03TPH (>EC35-44) aromatic 1.21E+05 2.50E+07 2.02E+03 2.66E+03 3.03E+03 6.37E+05 2.66E+03Naphthalene 1.64E+00 3.17E+04 2.64E+03 2.72E+01 3.96E+03 2.93E+04 2.72E+01Acenaphthylene 1.36E-01 8.48E+02 2.70E+02 8.15E+00 4.04E+02 2.97E+02 8.07E+00Acenaphthene 5.27E+00 1.84E+04 2.70E+03 2.34E+02 4.04E+03 2.97E+03 2.31E+02Fluorene 8.67E+03 1.77E+07 5.39E+03 8.53E+02 8.07E+03 1.70E+06 8.53E+02Phenanthrene 3.44E+01 3.91E+04 2.70E+03 6.69E+02 4.04E+03 2.97E+03 6.58E+02Anthracene 3.41E+05 2.69E+08 4.04E+04 1.30E+04 6.06E+04 1.27E+07 1.30E+04Fluoranthene 1.59E+01 7.09E+03 2.70E+02 5.59E+01 4.04E+02 2.97E+02 5.55E+01Pyrene 1.52E+02 6.71E+04 2.70E+03 4.96E+02 4.04E+03 2.97E+03 4.92E+02Benzo(a)anthracene 1.12E+01 1.57E+03 2.70E+01 2.72E+01 4.04E+01 2.97E+01 2.67E+01Chrysene 5.91E+02 1.37E+04 2.70E+02 1.87E+02 4.04E+02 2.97E+02 1.84E+02Benzo(b)fluoranthene 1.72E+02 1.93E+03 2.70E+01 3.81E+01 4.04E+01 2.97E+01 3.74E+01Benzo(k)fluoranthene 2.83E+02 2.30E+03 2.70E+01 5.52E+01 4.04E+01 2.97E+01 5.39E+01Benzo(a)pyrene 2.44E+01 2.13E+02 2.70E+00 4.75E+00 4.04E+00 2.97E+00 4.64E+00Indeno(123-cd)pyrene 1.43E+02 1.79E+03 2.70E+01 3.13E+01 4.04E+01 2.97E+01 3.08E+01Dibenzo(ah)anthracene 1.22E+01 2.65E+02 2.70E+00 7.15E+00 4.04E+00 2.97E+00 6.96E+00Benzo(g,h,i)perylene 2.56E+07 1.66E+08 4.04E+03 2.41E+04 6.06E+03 1.27E+06 2.41E+04Tetrachloroethene (PCE) 1.35E+00 2.65E+05 1.82E+03 1.07E+01 3.55E+03 2.50E+06 1.07E+01Trichloroethene (TCE) 1.10E-01 2.22E+04 7.01E+02 2.85E+00 1.05E+03 2.21E+05 2.85E+00cis -1,2-Dichloroethene 1.20E-01 2.33E+04 7.30E+02 1.75E+00 1.42E+03 2.30E+05 1.75E+00Vinyl Chloride (VC) 5.43E-04 3.59E+02 1.89E+00 3.70E-03 3.67E+00 1.27E+04 3.70E-031,1,2,2-Tetrachloroethane (PCA)2.76E+00 1.17E+05 7.67E+02 2.72E+00 1.49E+03 2.41E+05 2.72E+001,1,1-Trichloroethane (TCA) 6.33E+00 1.79E+06 8.09E+04 3.22E+02 1.57E+05 2.46E+07 3.22E+021,2-Dichloroethane 6.46E-03 8.09E+02 1.62E+01 3.07E-02 3.15E+01 5.10E+03 3.07E-02Carbon Tetrachloride 1.81E-02 5.07E+03 1.90E+02 1.06E+00 3.70E+02 6.93E+04 1.06E+00

Generic Site Assessment Criteria

Residential End Use

Pathway Specific Criteria

V2.11

APPENDIX 3

BWB GSAC DERIVATION

BWB HUMAN HEALTH GENERIC QUANTITATIVE RISK ASSESSMENT (GQRA) Human Health Generic Screening Criteria The Environment Agency published the revised CLEA framework for assessing the risk to human health from soil contamination in January 2009. The framework comprises a technical background document (EA, 2009a), toxicological assessment EA 2009b and CLEA spreadsheet model (EA 2009c). The new framework supersedes the 2002 CLEA model and subsequent briefing notes. The 2002 CLEA software and CLEA 2005 have also been withdrawn. All previously published Soil Guideline Values (SGV) have been withdrawn. The EA plan to issue revised SGVs for selected substances early in 2009. Conceptual Site Model The standard exposure pathways and Conceptual Models for human exposure to contaminants for different site uses are set out in the updated technical background to the CLEA model (Environment Agency 2009a). Descriptive Conceptual Models (From Environment Agency 2009a) Residential This generic scenario assumes a typical residential property consisting of a two-storey house built on a ground bearing slab with a private garden consisting of lawn, flower beds and a small fruit and vegetable patch. The occupants are assumed to be parenets with young children, who make regular use of the garden area. The key assumptions for BWB GSACs are Critical receptor is a young female child (aged zero to six years old) Exposure duration is six years Exposure pathways include direct soil and indoor dust ingestion, consumption of homegrown produce, consumption of soil attached to home grown produce, skin contact with soils and indoor dusts, and inhalation of indoor and outdoor dust and vapours. Soil type is a Sandy Loam with 1% organic matter Building type is a two storey small terraced house Commercial/industrial There are many different kinds of workplace and work-related activities. This generic scenario assumes a typical commercial or light industrial property consisting of a three storey building at which employees spend most time indoors and are involved in office based or relatively light physical work. The key assumptions for BWB GSACs are Critical receptor is a working female adult (aged 16 to 65 years) Exposure duration is a working lifetime of 49 years Exposure pathways include direct soil and indoor dust ingestion, skin contact with soils and

dusts, and inhalation of dust and vapours. Soil type is a Sandy Loam with 1% organic matter Building type is a three storey office (post 1970) (Representative of new buildings) The 2009a report identifies 10 potential exposure pathways by which contaminated soils may impact human health and also sets out which pathways are applicable for four standard land uses. The pathways for the residential and commercial end uses are shown below. Screening Criteria Modelling The CLEA model version 1.06 has been used to calculate BWB GSACs. BWB have used the model to calculate Individual criteria for each relevant pathway so, for example, in a residential with vegetable uptake scenario we would need six individual criteria:-

• Ingestion of soil and dust • Ingestion of contaminated vegetables and soil attached to

vegetables • Dermal contact indoors and outdoors • Particulate dust inhalation indoors and outdoors • Vapour inhalation indoors • Vapour inhalation outdoors

The final overall assessment criteria is calculated by adding together the reciprocal of the individual criteria for each pathway, therefore if several of the individual criteria are of similar magnitude the final criteria may be substantially lower than the lowest individual criteria so that total exposure is below the respective health threshold. 1/GSAC = ∑1/ASCingestion +1/ASCinhalation +1/ASCdermal By adopting this methodology BWB are able to provide a more flexible site specific approach to generic human health risk assessment. Pathway Selection - Generic Site Assessment Criteria Pathway Residential Commercial /

Industrial Ingestion of Soil Yes Yes Ingestion of site derived household dust Yes Yes Ingestion of contaminated homegrown produce

Optional No

Ingestion of soil attached to homegrown produce

Optional No

Dermal contact with Soil Yes Yes Dermal contact with site derived household dust

Yes Yes

Inhalation of fugitive soil dust Yes Yes Inhalation of fugitive site derived household dust

Yes Yes

Inhalation of vapours outside Yes Yes Inhalation of vapours inside Yes Yes

Health Criteria Values The general hierarchy for selecting health criteria values is as follows:

1. EA / DEFRA TOX report 2. Other UK authoritative body e.g. Committee on toxicity, Food

Standards Agency 3. EU authoritative body 4. Other EU body e.g. RIVM 5. Other US/International Body

In the absence of updated TOX reports which take into account the recommendations of EA report (2009b) TOX reports produced under the old regime have been used and GSACs will be updated accordingly as further authoritative information is issued. REFERENCES Environment Agency, 2009a, Updated Technical Background to the CLEA Model, Science Report SC050021/SR3 ISBN 978-1-84432-856-7 Environment Agency, 2009b, Human health Toxicological Assessment of Contaminants in Soil, Science Report SC050021/SR2 ISBN 978-1-84432-858-1 Environment Agency 2009c, CLEA Software Handbook (version 1.06) Science Report SC050021/SR4, ISBN 978-1-84432-857-4

Residential with Homegrown Produce Pathway Specific Assessment Sub Criteria

Vapour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Ingest

ion o

f Conta

min

ate

d

Vegeta

ble

s and a

ttach

ed

soil

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Arsenic NR NR 4.04E+0

1 9.81E+01

2.62E+02

8.50E+01

1.98E+01

Barium NR NR 1.35E+04

1.48E+03

NR 4.25E+06

1.33E+03

Beryllium NR NR 1.56E+02

1.03E+03

NR 2.89E+01

2.38E+01

Boron NR NR 1.08E+04

1.50E+02

NR 3.40E+06

1.48E+02

Cadmium pH 5 NR NR 6.74E+01

5.42E-01

1.31E+04

4.25E+01

5.31E-01


2.44E+00

1.31E+04

4.25E+01

2.23E+00


7.62E+00

1.31E+04

4.25E+01

5.89E+00


1.30E+01

1.31E+04

4.25E+01

8.66E+00


1.50E+01

1.31E+04

4.25E+01

9.52E+00

Chromium NR NR 3.06E+02

4.05E+02

NR 4.25E+01

3.42E+01

Copper NR NR 1.08E+04

5.13E+03

NR 3.40E+06

3.47E+03

Mercury NR NR 2.15E+01

2.87E+01

NR 1.27E+04

1.23E+01

Nickel NR NR 3.37E+02

4.24E+02

NR 1.27E+02

7.59E+01

Selenium NR NR 3.37E+02

1.69E+01

NR 1.06E+05

1.61E+01

Vanadium NR NR 2.30E+02

1.82E+02

NR 8.29E+03

1.00E+02

Zinc NR NR 4.37E+04

5.82E+03

NR 1.38E+07

5.13E+03

Phenol 5.14E+04

4.82E+07

8.92E+04

4.40E+02

6.95E+04

2.81E+07

4.32E+02

TPH (>EC6-7) aromatic (benzene)

1.28E-02

3.13E+03

3.91E+01

1.13E-01

5.85E+01

3.87E+04

1.15E-02

TPH (>EC7-8) aromatic (toluene)

3.04E+00

4.19E+05

2.69E+04

1.33E+02

5.23E+04

2.82E+06

2.97E+00

Ethylbenzene 1.30E+01

1.37E+06

1.34E+04

1.07E+02

2.62E+04

6.89E+06

1.16E+01

m-Xylene 6.06E+00

5.50E+05

2.40E+04

2.03E+02

4.67E+04

2.39E+06

5.89E+00

p-Xylene 5.83E+00

5.39E+05

2.40E+04

1.91E+02

4.67E+04

2.39E+06

5.66E+00

o-Xylene 6.52E+00

5.70E+05

2.40E+04

1.86E+02

4.67E+04

2.39E+06

6.30E+00

TPH (EC5-6) aliphatic

2.97E+00

2.53E+06

6.74E+05

9.69E+03

1.01E+06

1.12E+08

2.97E+00

TPH (>EC6-8) aliphatic

7.75E+00

4.08E+06

6.74E+05

3.30E+04

1.01E+06

1.12E+08

7.75E+00


2.14E+00

4.99E+05

6.74E+03

2.29E+03

1.01E+04

6.08E+06

2.13E+00


1.27E+01

1.22E+06

6.74E+03

1.75E+04

1.01E+04

6.08E+06

1.26E+01


6.38E+01

2.73E+06

6.74E+03

2.23E+05

1.01E+04

6.08E+06

6.28E+01


7.35E+03

7.74E+07

1.35E+05

1.16E+07

2.02E+05

4.25E+07

6.73E+03


7.35E+03

7.74E+07

1.35E+05

1.16E+07

2.02E+05

4.25E+07

6.73E+03


Vapour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Ingest

ion o

f Conta

min

ate

d

Vegeta

ble

s and a

ttach

ed

soil

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) TPH (>EC35-44) aliphatic

7.35E+03

7.74E+07

1.35E+05

1.16E+07

2.02E+05

4.25E+07

6.73E+03


1.28E-02

3.13E+03

3.91E+01

1.13E-01

5.85E+01

3.87E+04

1.15E-02


3.04E+00

4.19E+05

2.69E+04

1.33E+02

5.23E+04

2.82E+06

2.97E+00

TPH (>EC8-10) aromatic

3.64E+00

2.91E+05

2.70E+03

7.45E+01

4.04E+03

1.21E+06

3.46E+00


2.18E+01

7.11E+05

2.70E+03

9.71E+01

4.04E+03

1.21E+06

1.76E+01


1.23E+02

1.68E+06

2.70E+03

1.67E+02

4.04E+03

1.21E+06

6.77E+01


9.47E+02

3.34E+06

2.02E+03

3.45E+02

3.03E+03

6.37E+05

2.09E+02


1.21E+05

2.50E+07

2.02E+03

2.66E+03

3.03E+03

6.37E+05

8.26E+02


1.21E+05

2.50E+07

2.02E+03

2.66E+03

3.03E+03

6.37E+05

8.26E+02

Naphthalene 1.64E+00

3.17E+04

2.64E+03

2.72E+01

3.96E+03

2.93E+04

1.54E+00

Acenaphthylene 1.36E-01

8.48E+02

2.70E+02

8.15E+00

4.04E+02

2.97E+02

1.33E-01

Acenaphthene 5.27E+00

1.84E+04

2.70E+03

2.34E+02

4.04E+03

2.97E+03

5.13E+00

Fluorene 8.67E+03

1.77E+07

5.39E+03

8.53E+02

8.07E+03

1.70E+06

6.26E+02

Phenanthrene 3.44E+01

3.91E+04

2.70E+03

6.69E+02

4.04E+03

2.97E+03

3.17E+01

Anthracene 3.41E+05

2.69E+08

4.04E+04

1.30E+04

6.06E+04

1.27E+07

8.27E+03

Fluoranthene 1.59E+01

7.09E+03

2.70E+02

5.59E+01

4.04E+02

2.97E+02

1.11E+01

Pyrene 1.52E+02

6.71E+04

2.70E+03

4.96E+02

4.04E+03

2.97E+03

1.04E+02

Benzo(a)anthracene 1.12E+01

1.57E+03

2.70E+01

2.72E+01

4.04E+01

2.97E+01

4.50E+00

Chrysene 5.91E+02

1.37E+04

2.70E+02

1.87E+02

4.04E+02

2.97E+02

6.00E+01

Benzo(b)fluoranthene

1.72E+02

1.93E+03

2.70E+01

3.81E+01

4.04E+01

2.97E+01

7.81E+00

Benzo(k)fluoranthene

2.83E+02

2.30E+03

2.70E+01

5.52E+01

4.04E+01

2.97E+01

8.51E+00

Benzo(a)pyrene 2.44E+01

2.13E+02

2.70E+00

4.75E+00

4.04E+00

2.97E+00

8.26E-01

Indeno(123-cd)pyrene

1.43E+02

1.79E+03

2.70E+01

3.13E+01

4.04E+01

2.97E+01

7.41E+00

Dibenzo(ah)anthracene

1.22E+01

2.65E+02

2.70E+00

7.15E+00

4.04E+00

2.97E+00

8.47E-01

Benzo(g,h,i)perylene 2.56E+07

1.66E+08

4.04E+03

2.41E+04

6.06E+03

1.27E+06

2.20E+03

Tetrachloroethene (PCE)

1.35E+00

2.65E+05

1.82E+03

1.07E+01

3.55E+03

2.50E+06

1.20E+00

Trichloroethene (TCE)

1.10E-01

2.22E+04

7.01E+02

2.85E+00

1.05E+03

2.21E+05

1.06E-01

Vinyl Chloride (VC) 5.43E-04

3.59E+02

1.89E+00

3.70E-03

3.67E+00

1.27E+04

4.73E-04

1,1,2,2-Tetrachloroethane (PCA)

2.76E+00

1.17E+05

7.67E+02

2.72E+00

1.49E+03

2.41E+05

1.37E+00

1,1,1-Trichloroethane (TCA)

6.33E+00

1.79E+06

8.09E+04

3.22E+02

1.57E+05

2.46E+07

6.21E+00


Vapour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Ingest

ion o

f Conta

min

ate

d

Vegeta

ble

s and a

ttach

ed

soil

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) 1,2-Dichloroethane 6.46E-

03 8.09E+02

1.62E+01

3.07E-02

3.15E+01

5.10E+03

5.34E-03

Carbon Tetrachloride 1.81E-02

5.07E+03

1.90E+02

1.06E+00

3.70E+02

6.93E+04

1.78E-02

Residential Without Homegrown Produce Pathway Specific Assessment Sub Criteria V

apour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Arsenic NR NR 4.04E+01 2.62E+02 8.50E+01 2.48E+01 Barium NR NR 1.35E+04 NR 4.25E+06 1.34E+04 Beryllium NR NR 1.56E+02 NR 2.89E+01 2.44E+01 Boron NR NR 1.08E+04 NR 3.40E+06 1.08E+04 Cadmium NR NR 6.74E+01 1.31E+04 4.25E+01 2.60E+01 Chromium NR NR 3.06E+02 NR 4.25E+01 3.73E+01 Copper NR NR 1.08E+04 NR 3.40E+06 1.08E+04 Lead Mercury NR NR 2.15E+01 NR 1.27E+04 2.14E+01 Nickel NR NR 3.37E+02 NR 1.27E+02 9.25E+01 Selenium NR NR 3.37E+02 NR 1.06E+05 3.36E+02 Vanadium NR NR 2.30E+02 NR 8.29E+03 2.24E+02 Zinc NR NR 4.37E+04 NR 1.38E+07 4.36E+04 Cyanide (free) Cyanide (Complex) Phenol 5.14E+04 4.82E+07 8.92E+04 6.95E+04 2.81E+07 2.22E+04 TPH (>EC6-7) aromatic (benzene)

1.28E-02 3.13E+03 3.91E+01 5.85E+01 3.87E+04 1.28E-02


3.04E+00 4.19E+05 2.69E+04 5.23E+04 2.82E+06 3.04E+00

Ethylbenzene 1.30E+01 1.37E+06 1.34E+04 2.62E+04 6.89E+06 1.30E+01 m-Xylene 6.06E+00 5.50E+05 2.40E+04 4.67E+04 2.39E+06 6.06E+00 p-Xylene 5.83E+00 5.39E+05 2.40E+04 4.67E+04 2.39E+06 5.83E+00 o-Xylene 6.52E+00 5.70E+05 2.40E+04 4.67E+04 2.39E+06 6.52E+00 TPH (EC5-6) aliphatic 2.97E+00 2.53E+06 6.74E+05 1.01E+06 1.12E+08 2.97E+00 TPH (>EC6-8) aliphatic 7.75E+00 4.08E+06 6.74E+05 1.01E+06 1.12E+08 7.75E+00 TPH (>EC8-10) aliphatic

2.14E+00 4.99E+05 6.74E+03 1.01E+04 6.08E+06 2.14E+00


1.27E+01 1.22E+06 6.74E+03 1.01E+04 6.08E+06 1.26E+01


6.38E+01 2.73E+06 6.74E+03 1.01E+04 6.08E+06 6.28E+01


7.35E+03 7.74E+07 1.35E+05 2.02E+05 4.25E+07 6.73E+03


7.35E+03 7.74E+07 1.35E+05 2.02E+05 4.25E+07 6.73E+03


7.35E+03 7.74E+07 1.35E+05 2.02E+05 4.25E+07 6.73E+03


1.28E-02 3.13E+03 3.91E+01 5.85E+01 3.87E+04 1.28E-02


3.04E+00 4.19E+05 2.69E+04 5.23E+04 2.82E+06 3.04E+00


3.64E+00 2.91E+05 2.70E+03 4.04E+03 1.21E+06 3.63E+00


2.18E+01 7.11E+05 2.70E+03 4.04E+03 1.21E+06 2.15E+01


1.23E+02 1.68E+06 2.70E+03 4.04E+03 1.21E+06 1.14E+02


9.47E+02 3.34E+06 2.02E+03 3.03E+03 6.37E+05 5.31E+02


1.21E+05 2.50E+07 2.02E+03 3.03E+03 6.37E+05 1.20E+03


1.21E+05 2.50E+07 2.02E+03 3.03E+03 6.37E+05 1.20E+03

Naphthalene 1.64E+00 3.17E+04 2.64E+03 3.96E+03 2.93E+04 1.64E+00 Acenaphthylene 1.36E-01 8.48E+02 2.70E+02 4.04E+02 2.97E+02 1.35E-01 Acenaphthene 5.27E+00 1.84E+04 2.70E+03 4.04E+03 2.97E+03 5.25E+00 Fluorene 8.67E+03 1.77E+07 5.39E+03 8.07E+03 1.70E+06 2.35E+03 Phenanthrene 3.44E+01 3.91E+04 2.70E+03 4.04E+03 2.97E+03 3.33E+01 Anthracene 3.41E+05 2.69E+08 4.04E+04 6.06E+04 1.27E+07 2.26E+04 Fluoranthene 1.59E+01 7.09E+03 2.70E+02 4.04E+02 2.97E+02 1.38E+01

Residential Without Homegrown Produce Pathway Specific Assessment Sub Criteria V

apour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Pyrene 1.52E+02 6.71E+04 2.70E+03 4.04E+03 2.97E+03 1.32E+02 Benzo(a)anthracene 1.12E+01 1.57E+03 2.70E+01 4.04E+01 2.97E+01 5.39E+00 Chrysene 5.91E+02 1.37E+04 2.70E+02 4.04E+02 2.97E+02 8.84E+01 Benzo(b)fluoranthene 1.72E+02 1.93E+03 2.70E+01 4.04E+01 2.97E+01 9.82E+00 Benzo(k)fluoranthene 2.83E+02 2.30E+03 2.70E+01 4.04E+01 2.97E+01 1.01E+01 Benzo(a)pyrene 2.44E+01 2.13E+02 2.70E+00 4.04E+00 2.97E+00 1.00E+00 Indeno(123-cd)pyrene 1.43E+02 1.79E+03 2.70E+01 4.04E+01 2.97E+01 9.71E+00 Dibenzo(ah)anthracene 1.22E+01 2.65E+02 2.70E+00 4.04E+00 2.97E+00 9.61E-01 Benzo(g,h,i)perylene 2.56E+07 1.66E+08 4.04E+03 6.06E+03 1.27E+06 2.42E+03 Tetrachloroethene (PCE)

1.35E+00 2.65E+05 1.82E+03 3.55E+03 2.50E+06 1.35E+00

Trichloroethene (TCE) 1.10E-01 2.22E+04 7.01E+02 1.05E+03 2.21E+05 1.10E-01 Vinyl Chloride (VC) 5.43E-04 3.59E+02 1.89E+00 3.67E+00 1.27E+04 5.43E-04 1,1,2,2-Tetrachloroethane (PCA)

2.76E+00 1.17E+05 7.67E+02 1.49E+03 2.41E+05 2.74E+00


6.33E+00 1.79E+06 8.09E+04 1.57E+05 2.46E+07 6.33E+00

1,2-Dichloroethane 6.46E-03 8.09E+02 1.62E+01 3.15E+01 5.10E+03 6.46E-03 Carbon Tetrachloride 1.81E-02 5.07E+03 1.90E+02 3.70E+02 6.93E+04 1.81E-02

Commercial Pathway Specific Assessment Sub Criteria

Vapour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Arsenic NR NR 6.67E+02 1.35E+04 6.95E+02 3.32E+02 Barium NR NR 2.22E+05 NR 3.48E+07 2.21E+05 Beryllium NR NR 3.97E+03 NR 2.36E+02 2.23E+02 Boron NR NR 2.38E+05 NR 3.72E+07 2.37E+05 Cadmium NR NR 1.71E+03 1.04E+06 3.48E+02 2.89E+02 Chromium NR NR 6.25E+03 NR 3.48E+02 3.29E+02 Copper NR NR 1.78E+05 NR 2.78E+07 1.77E+05 Mercury NR NR 5.87E+02 NR 1.04E+05 5.84E+02 Nickel NR NR 6.03E+03 NR 1.04E+03 8.89E+02 Selenium NR NR 9.65E+03 NR 1.51E+06 9.59E+03 Vanadium NR NR 5.94E+03 NR 9.20E+04 5.58E+03 Zinc NR NR 8.79E+05 NR 1.38E+08 8.74E+05 Phenol 2.00E+07 1.05E+08 1.53E+06 3.72E+06 2.40E+08 1.02E+06 TPH (>EC6-7) aromatic (benzene)

2.26E+00 6.52E+03 6.44E+02 3.00E+03 3.16E+05 2.25E+00


5.65E+02 9.47E+05 4.44E+05 2.69E+06 2.51E+07 5.63E+02

Ethylbenzene 2.24E+03 2.95E+06 2.22E+05 1.34E+06 5.84E+07 2.21E+03 m-Xylene 1.10E+03 1.25E+06 3.97E+05 2.40E+06 2.13E+07 1.10E+03 p-Xylene 1.06E+03 1.23E+06 3.97E+05 2.40E+06 2.13E+07 1.05E+03 o-Xylene 1.18E+03 1.30E+06 3.97E+05 2.40E+06 2.13E+07 1.18E+03 TPH (EC5-6) aliphatic 5.47E+02 5.26E+06 1.11E+07 5.17E+07 9.14E+08 5.47E+02 TPH (>EC6-8) aliphatic 1.42E+03 8.49E+06 1.11E+07 5.17E+07 9.14E+08 1.42E+03 TPH (>EC8-10) aliphatic

3.93E+02 1.04E+06 1.11E+05 5.17E+05 4.97E+07 3.91E+02


2.33E+03 2.53E+06 1.11E+05 5.17E+05 4.97E+07 2.27E+03


1.17E+04 5.68E+06 1.11E+05 5.17E+05 4.97E+07 1.04E+04


1.35E+06 1.61E+08 2.22E+06 1.03E+07 3.48E+08 7.72E+05


1.35E+06 1.61E+08 2.22E+06 1.03E+07 3.48E+08 7.72E+05


1.35E+06 1.61E+08 2.22E+06 1.03E+07 3.48E+08 7.72E+05


2.26E+00 6.52E+03 6.44E+02 3.00E+03 3.16E+05 2.25E+00


5.65E+02 9.47E+05 4.44E+05 2.69E+06 2.51E+07 5.63E+02


6.69E+02 6.05E+05 4.44E+04 2.07E+05 9.91E+06 6.56E+02


4.03E+03 1.48E+06 4.44E+04 2.07E+05 9.91E+06 3.62E+03


2.27E+04 3.50E+06 4.44E+04 2.07E+05 9.91E+06 1.39E+04


1.81E+05 6.96E+06 3.33E+04 1.55E+05 5.21E+06 2.36E+04


3.64E+07 5.20E+07 3.33E+04 1.55E+05 5.21E+06 2.73E+04


3.64E+07 5.20E+07 3.33E+04 1.55E+05 5.21E+06 2.73E+04

Naphthalene 3.22E+02 7.85E+04 4.42E+04 2.06E+05 2.85E+05 3.17E+02 Acenaphthylene 2.69E+01 1.77E+03 4.44E+03 2.07E+04 2.43E+03 2.60E+01 Acenaphthene 8.32E+02 3.83E+04 4.44E+04 2.07E+05 2.43E+04 7.71E+02 Fluorene 1.39E+06 3.70E+07 8.88E+04 4.14E+05 1.39E+07 6.90E+04 Phenanthrene 7.91E+03 8.13E+04 4.44E+04 2.07E+05 2.43E+04 4.83E+03 Anthracene 7.22E+07 5.60E+08 6.67E+05 3.10E+06 1.04E+08 5.41E+05 Fluoranthene 4.38E+03 1.47E+04 4.44E+03 2.07E+04 2.43E+03 1.02E+03 Pyrene 4.29E+04 1.40E+05 4.44E+04 2.07E+05 2.43E+04 1.01E+04 Benzo(a)anthracene 3.47E+03 3.27E+03 4.44E+02 2.07E+03 2.43E+02 1.34E+02 Chrysene 2.23E+05 2.85E+04 4.44E+03 2.07E+04 2.43E+03 1.38E+03

Commercial Pathway Specific Assessment Sub Criteria

Vapour

Inhala

tion

(Indoors

)

Vapour

Inhala

tion

(Outd

oors

)

Soil

Ingest

ion

Derm

al

conta

ct

Part

icula

te

Dust

In

hala

tion

GSAC

(mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Benzo(b)fluoranthene 6.56E+04 4.02E+03 4.44E+02 2.07E+03 2.43E+02 1.41E+02 Benzo(k)fluoranthene 1.09E+05 4.78E+03 4.44E+02 2.07E+03 2.43E+02 1.42E+02 Benzo(a)pyrene 9.37E+03 4.43E+02 4.44E+01 2.07E+02 2.43E+01 1.41E+01 Indeno(123-cd)pyrene 5.46E+04 3.72E+03 4.44E+02 2.07E+03 2.43E+02 1.40E+02 Dibenzo(ah)anthracene 4.49E+03 5.51E+02 4.44E+01 2.07E+02 2.43E+01 1.42E+01 Benzo(g,h,i)perylene 9.73E+09 3.46E+08 6.66E+04 3.10E+05 1.04E+07 5.46E+04 Tetrachloroethene (PCE)

2.59E+02 6.38E+05 3.08E+04 1.87E+05 2.37E+07 2.57E+02

Trichloroethene (TCE) 1.89E+01 4.63E+04 1.16E+04 5.38E+04 1.81E+06 1.88E+01 Vinyl Chloride (VC) 1.03E-01 7.47E+02 3.11E+01 1.88E+02 1.04E+05 1.03E-01 1,1,2,2-Tetrachloroethane (PCA)

4.69E+02 2.49E+05 1.28E+04 7.76E+04 2.01E+06 4.49E+02


1.11E+03 3.81E+06 1.33E+06 8.07E+06 2.07E+08 1.11E+03

1,2-Dichloroethane 1.14E+00 1.68E+03 2.67E+02 1.61E+03 4.17E+04 1.14E+00 Carbon Tetrachloride 4.81E+00 1.65E+04 3.15E+03 1.91E+04 8.85E+05 4.80E+00

APPENDIX 4

GENERAL FILL (ABOVE 2M OF FORMATION) VALIDATION CRITERIA


Harworth Phase 1A Development

General Fill (within 2m of

formation) NTE2034 mg/kg SourceArsenic 1.25E+02 BWBBarium 6.66E+04 BWBBeryllium 3.77E+02 BWBBoron 5.33E+04 BWBCadmium 1.11E+02 BWBChromium VI 5.78E+02 BWBCopper 5.33E+04 BWBLead* 4.50E+02 SGVInorganic Mercury 1.28E+03 BWBNickel 3.76E+03 BWBSelenium 3.63E+03 BWBVanadium 1.58E+03 BWBZinc 2.49E+05 BWBCyanide (Free) 4.30E+01 SNIFFERCyanide (Complex) 2.13E+02 SNIFFERPhenols (Total) 8.89E+02 BWBEthyl benzene 5.18E+02 BWBm-Xylene 6.25E+02 BWBp-Xylene 5.76E+02 BWBo-Xylene 4.78E+02 BWBTPH (EC5-6) aliphatic 2.29E+02 BWBTPH (>EC6-8) aliphatic 5.95E+02 BWBTPH (>EC8-10) aliphatic 1.60E+02 BWBTPH (>EC10-12) aliphatic 8.53E+02 BWBTPH (>EC12-16) aliphatic 3.02E+03 BWBTPH (>EC16-21) aliphatic 1.27E+05 BWBTPH (>EC21-35) aliphatic 1.27E+05 BWBTPH (>EC35-44) aliphatic 1.27E+05 BWBTPH (>EC6-7) aromatic (benzene) 1.37E+01 BWBTPH (>EC7-8) aromatic (toluene) 8.69E+02 BWBTPH (>EC8-10) aromatic 2.49E+02 BWBTPH (>EC10-12) aromatic 1.06E+03 BWBTPH (>EC12-16) aromatic 2.45E+03 BWBTPH (>EC16-21) aromatic 2.57E+03 BWBTPH (>EC21-35) aromatic 2.77E+03 BWBTPH (>EC35-44) aromatic 2.77E+03 BWB



General Fill (within 2m of

formation) NTE2034 mg/kg SourceNaphthalene 1.18E+02 BWBAcenaphthylene 5.94E+00 BWBAcenaphthene 1.76E+02 BWBFluorene 7.19E+03 BWBPhenanthrene 4.63E+02 BWBAnthracene 5.50E+04 BWBFluoranthene 8.40E+01 BWBPyrene 8.05E+02 BWBBenzo(a)anthracene 1.51E+01 BWBChrysene 1.42E+02 BWBBenzo(b)fluoranthene 1.72E+01 BWBBenzo(k)fluoranthene 1.87E+01 BWBBenzo(a)pyrene 1.81E+00 BWBIndeno(1,2,3-c,d)pyrene 1.65E+01 BWBDibenzo(a,h)anthracene 1.99E+00 BWBBenzo(g,hi)perylene 5.57E+03 BWB

APPENDIX 5

ENGINEERED FILL (BELOW 2M OF FORMATION) VALIDATION CRITERIA



Engineered Fill (below 2m of

formation) Validation

CriteriaNTE2034 mg/kg SourceArsenic Not of concern BWBBarium Not of concern BWBBeryllium Not of concern BWBBoron Not of concern BWBCadmium Not of concern BWBChromium VI Not of concern BWBCopper Not of concern BWBLead* Not of concern SGVInorganic Mercury Not of concern BWBNickel Not of concern BWBSelenium Not of concern BWBVanadium Not of concern BWBZinc Not of concern BWBCyanide (Free) Not of concern SNIFFERCyanide (Complex) Not of concern SNIFFERPhenols (Total) 5.52E+05 BWBEthyl benzene 1.79E+06 BWBm-Xylene 5.04E+05 BWBp-Xylene 4.94E+05 BWBo-Xylene 5.23E+05 BWBTPH (EC5-6) aliphatic 2.53E+06 BWBTPH (>EC6-8) aliphatic 4.08E+06 BWBTPH (>EC8-10) aliphatic 4.99E+05 BWBTPH (>EC10-12) aliphatic 1.22E+06 BWBTPH (>EC12-16) aliphatic 2.73E+06 BWBTPH (>EC16-21) aliphatic 7.74E+07 BWBTPH (>EC21-35) aliphatic 7.74E+07 BWBTPH (>EC35-44) aliphatic 7.74E+07 BWBTPH (>EC6-7) aromatic (benzene) 5.63E+03 BWBTPH (>EC7-8) aromatic (toluene) 8.62E+06 BWBTPH (>EC8-10) aromatic 2.91E+05 BWBTPH (>EC10-12) aromatic 7.11E+05 BWBTPH (>EC12-16) aromatic 1.68E+06 BWBTPH (>EC16-21) aromatic 3.34E+06 BWBTPH (>EC21-35) aromatic 2.50E+07 BWBTPH (>EC35-44) aromatic 2.50E+07 BWB



Engineered Fill (below 2m of

formation) Validation

CriteriaNTE2034 mg/kg SourceNaphthalene 3.17E+04 BWBAcenaphthylene 8.48E+02 BWBAcenaphthene 1.84E+04 BWBFluorene 1.77E+07 BWBPhenanthrene 3.91E+04 BWBAnthracene 2.69E+08 BWBFluoranthene 7.09E+03 BWBPyrene 6.71E+04 BWBBenzo(a)anthracene 1.57E+03 BWBChrysene 1.37E+04 BWBBenzo(b)fluoranthene 1.93E+03 BWBBenzo(k)fluoranthene 2.30E+03 BWBBenzo(a)pyrene 2.13E+02 BWBIndeno(1,2,3-c,d)pyrene 1.79E+03 BWBDibenzo(a,h)anthracene 2.65E+02 BWBBenzo(g,hi)perylene 1.66E+08 BWB

APPENDIX 6

IMPORTED TOPSOIL/ SUBSOIL VALIDATION CRITERIA



Topsoil Validation

CriteriaNTE2034 mg/kg SourceArsenic 3.24E+01 BWBBarium 1.33E+03 BWBBeryllium 2.38E+01 BWBBoron 1.48E+02 BWBCadmium 1.04E+01 BWBChromium VI 3.42E+01 BWBCopper 1.00E+02 BS3882Lead* 4.50E+02 SGVInorganic Mercury 1.69E+02 BWBNickel 6.00E+01 BS3882Selenium 3.50E+02 BWBVanadium 1.00E+02 BWBZinc 2.00E+02 BS3882Cyanide (Free) 4.30E+01 SNIFFERCyanide (Complex) 2.13E+02 SNIFFERPhenols (Total) 1.84E+02 BWBEthyl benzene 6.52E+01 BWBm-Xylene 4.36E+01 BWBp-Xylene 4.17E+01 BWBo-Xylene 4.52E+01 BWBTPH (EC5-6) aliphatic 2.97E+00 BWBTPH (>EC6-8) aliphatic 7.75E+00 BWBTPH (>EC8-10) aliphatic 2.13E+00 BWBTPH (>EC10-12) aliphatic 1.26E+01 BWBTPH (>EC12-16) aliphatic 6.28E+01 BWBTPH (>EC16-21) aliphatic 6.73E+03 BWBTPH (>EC21-35) aliphatic 6.73E+03 BWBTPH (>EC35-44) aliphatic 6.73E+03 BWBTPH (>EC6-7) aromatic (benzene) 7.92E-02 BWBTPH (>EC7-8) aromatic (toluene) 1.19E+02 BWBTPH (>EC8-10) aromatic 3.46E+00 BWBTPH (>EC10-12) aromatic 1.76E+01 BWBTPH (>EC12-16) aromatic 6.77E+01 BWBTPH (>EC16-21) aromatic 2.09E+02 BWBTPH (>EC21-35) aromatic 8.26E+02 BWBTPH (>EC35-44) aromatic 8.26E+02 BWB



Topsoil Validation

CriteriaNTE2034 mg/kg SourceNaphthalene 1.54E+00 BWBAcenaphthylene 1.33E-01 BWBAcenaphthene 5.13E+00 BWBFluorene 6.26E+02 BWBPhenanthrene 3.17E+01 BWBAnthracene 8.27E+03 BWBFluoranthene 1.11E+01 BWBPyrene 1.04E+02 BWBBenzo(a)anthracene 4.50E+00 BWBChrysene 6.00E+01 BWBBenzo(b)fluoranthene 7.81E+00 BWBBenzo(k)fluoranthene 8.51E+00 BWBBenzo(a)pyrene 8.26E-01 BWBIndeno(1,2,3-c,d)pyrene 7.41E+00 BWBDibenzo(a,h)anthracene 8.47E-01 BWBBenzo(g,hi)perylene 2.20E+03 BWB

APPENDIX 7

PROPOSED SITE LAYOUT PLAN

12

13

14

23

24

25

27

26

28

31

29

30

32

39

37

38

50

40

49

41

42

51

43

44

45

46

47

48

52

55

535

4

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

77

76

W

Bi

LL

Cr

Cr

Bi

Br

86

89

85

90

88

87

91

94

95

92

96

93

10

6

99

97

10

1

98

10

0

10

2

10

9

11

0

10

3

10

5

10

4

10

8 10

7

11

2

11

1

W

Da

L

L3

Ma

Da

Da

Ma

Br

Br

Ma

Ma

Br

Br

Br

Da

W

Da

W

11

3

11

4

Br

11

5

11

6

11

7

Br

LL

76

Da

HH

Ma

LL

11

8

76

87

3

91

01

1

4

5

6

Ca

1

2

Da

Ma

W

Da

Br

Da

Ma

Br

H

Br

63

64

65

Br

74

75 7

77

8

L3

79

81

80

79

LL

78

Cr

Cr

82

84

Bi

83

82

81

80

83

84

Bi

Bi

Bi

Bi

Bi

Bi

Bi

Bi

Bi

HH

Bi

Bi

29

30

31

19

V2

22

12

2

19

35

33

34

36

29

30

31

36

37

38

52

54

53

Ca

Ca

63

64

65

74

75

77

79

78

84

83

82

81

80

35

18

Ca

32

33

34

40

49

50

39

36

37

38

35

32

33

34

40

49

50

39

52

54

53

Br

Br 15

17

HH

17

18

Bi

Bi

16

17

18

51

51

6262

66

66

LL

3L

3

L

Greenhouse

Beeston R

oadLeeds ∙ LS

11 6AD

ARCHITECTS

Em

ail ∙ info@q-ad

.co.ukW

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Date post:	16-Oct-2021
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Phase 1 Report - Nottinghamshire

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