Jack Harvey

Construction

Crown Lodge

Upshire

Essex

FLOOD RISK

ASSESSMENT

January 2016

Gemma Design Ltd Lea View House, Two Rivers Estate,

Station Lane, Witney, Oxon, OX28 4LD Tel: 01993 705 522

Fax: 01993 779 220 E-mail: [email protected] Website: www.gemma-design.co.uk

Document Ref: 4082-GDL-RP-C-001

Gemma Design Ltd K:\ACAD4000\4082 - Crown Lodge (J Harvey Construction)\(07) - Reports\FRA\4082 -FRA.docx

Gemma Design Ltd

FLOOD RISK ASSESSMENT

FOR CROWN LODGE, UPSHIRE, ESSEX

Gemma Design Ltd have prepared this report in accordance with the instruction of Jack Harvey Construction (“The Client”).

The flood risk assessment is for the sole and specific use of the client and Gemma Design Ltd shall not be responsible for any use of the assessment or its contents for any purpose other than that for which it was prepared and provided. Should the client require to pass copies of the assessment to other parties for information, then no professional liability or warranty shall be extended to other parties by Gemma Design Ltd in this connection without the explicit agreement thereto by Gemma Design Ltd.

Prepared Pavlos Iordanidis Date: 29/01/2016 by:

Checked S Watts BEng (Hons) Date: 29/01/2016 by: Approved S Watts BEng (Hons) Date: 29/01/2016 by:

Issue Date Sheet No Sets Recipient 29/01/2016 Draft issue 1 Jack Harvey Andy Campbell

Amendments Date Sheet No Sets Recipient

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex 2

Gemma Design Ltd

Contents

1 List of Appendices ...... 4 2 Summary ...... 5 3 Scope ...... 5 4 Introduction ...... 6 5 The Site ...... 6 6 Proposed Development ...... 6 7 Flood Plain ...... 7 8 Site Drainage ...... 7 9 Other Sources Of Flooding ...... 7 10 Dry Islands ...... 8 11 Conclusion ...... 9 12 References ...... 10 13 Appendices ...... 11

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Gemma Design Ltd

1 List of Appendices

Appendix A – Topographical Site Survey (Chinery Land Surveys CLS13079001)

Appendix B – Concept Studio MK Ltd Site plan – Nr. PL-05

Appendix C – Environment Agency’s Fluvial Flood Map

Appendix D – Site Investigation (Land Science LS 1940)

Appendix E – Microdrainage calculations

Appendix F – Proposed surface water drainage design & construction details (Gemma design Nr. 4082-GDL-XX-D-DR-C-003, 4082-GDL-XX-D-DR-C-010&11)

Appendix G – Map 6 from the Strategic Flood Risk Assessment (SFRA) – Flood Map for surface water

Environment Agency’s Surface Run-off Flood Map

Appendix H– Map 3 from the Strategic Flood Risk Assessment (SFRA) – Historical Flooding Incidents

Appendix I – Environment Agency’s Risk of Flooding from Reservoirs Map

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Gemma Design Ltd

2 Summary

2.1 Gemma Design Limited has been commissioned, on behalf of Jack Harvey Construction, to undertake a Flood Risk Assessment (FRA) in support of the discharge of the planning condition 12 associated with the proposed residential development at Crown Hill, Upshire, Essex.

2.2 The development comprises of 2 plots with parking spaces, a carport and a vehicle turning area. The development will be located on land that currently comprises of a brick and timber barn, an area of tarmac hardstanding and a grassed garden to the rear of the barn.

2.3 The development is located in Flood Zone 1 (land assessed as having a less than 1 in 1000 annual probability of river or sea flooding in any year) and therefore the primary objective of the report is to consider the management of surface water run-off from the development and the risk of flooding from non-fluvial sources.

2.4 The purpose of this Flood Risk Assessment is to evaluate the potential flood risk that the development poses on the site and to set out the proposed mitigation measures to ensure that the development will remain safe throughout its lifetime and will not increase the flood risk elsewhere.

2.5 This report addresses the guidance requirements raised in the Technical Guidance to the National Planning Policy Framework (NPPF) and has been prepared in accordance with The Environment Agency’s (EA’s) latest standing advice for more vulnerable developments of less than 1 hectare that are located in Flood Zone 1.

3 Scope

3.1 The scopes of works for this FRA were to:

i. Address the Planning Authorities requirements of NPPF and Guidance Note 1 for developments within a critical drainage area. ii. Prepare a report that presents the findings of the assessment and issue to the Planning Authority to assist with the discharge of planning condition 12.

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Gemma Design Ltd

4 Introduction

4.1 This Flood Risk Assessment has been prepared by Gemma Design Ltd, on behalf of Jack Harvey Construction, in support of the discharge of the planning condition 12 associated with the proposed residential development at the Crown Hill, Upshire, Essex.

4.2 The development is located in Flood Zone 1 (land assessed as having a less than 1 in 1000 annual probability of river or sea flooding in any year) and therefore the main purposes of the report is to consider the management of surface water run-off from the development and the risk of flooding from non-fluvial sources.

5 The Site

5.1 The site is situated at Crown Lodge Barn, Crown Hill to the east of London Orbital Motorway approximately 2.20km east of Waltham Abbey. The site is accessed via Crown Hill Road to the north.

5.2 The site is located to the rear (south) of an existing residential property with Crown Hill farm located to the east. To the south and west of the site are open fields. There is a ditch/ordinary watercourse along the westerly site boundary that drains in a northerly direction. The ditch/watercourse becomes a main river to the north of the development (Cobbin’s Brook).The Ordnance Survey National Grid reference for the centre of the site is 542483mE, 200494mN.

5.3 The site is irregular in shape varying in width and length. There is not a significant change in level across the site. The highest part of the site is located along the south westerly boundary of the site and is approximately 79.79m above Ordnance Survey (OS) datum. The most north easterly part of the site is the lowest part of the site and is approximately 78.52m above OS datum.

5.4 The site covers an area of approximately 0.13 Hectares of which 0.04 Hectares (31.00%) is currently impermeable.

5.5 A topographical site survey, undertaken by Chinery Land Surveys, is enclosed in Appendix A.

6 Proposed Development

6.1 The development will comprise of two new dwellings, a carport, two parking spaces and a vehicle tuning area with garden areas to the rear.

6.2 The development will be accessed from Crown Hill road via the existing site entrance.

6.3 The proposed impermeable area is approximately 0.07 Hectares.

6.4 Concept studio mk ltd site layout (drg. Nr. PL-05) enclosed in Appendix B shows the layout of the proposed development.

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Gemma Design Ltd

7 Flood Plain

7.1 The flood maps available on the Environment Agency (EA) website indicate that the site is located in flood zone 1 (land assessed as having a less than 1 in 1000 annual probability of river or sea flooding in any year).

7.2 The site is located immediately south of the Cobbins Brook.

7.3 A copy of the EA’s flood map in the vicinity of the site is enclosed in Appendix C.

8 Site Drainage

8.1 As there will be an increase in impermeable area it is proposed to use sustainable drainage systems to manage the surface run-off from the development.

8.2 A site investigation was undertaken by Land Science in 2015 (ref. LS 1940), in order to assess the suitability of using infiltration systems on the development. The falling head soakage tests indicated that soakaways are unlikely to perform satisfactory due to encountering clayey ground conditions. The site investigation report is enclosed in Appendix D.

8.3 Therefore, an attenuated connection to the adjacent watercourse to the east of the development is proposed and geocellular crates will be used in conjunction with a flow control device to form the attenuation system. These will be located towards the south easterly end of the development, to accommodate a piped gravity connection. The rate of flow will be controlled using an orifice or similar flow control device and will discharge into the existing watercourse to the east of the proposed development. The flow will be restricted to 5.0 l/s, which is the desirable minimum flow rate to reduce the potential for blockage in the flow control device.

8.4 The cellular storage will be designed to cater for the 1 in 100 year storm, including an appropriate allowance for climate change (30%) in line with the NPPF. Microdrainage calculations are enclosed in Appendix E.

8.5 The proposed surface water drainage drawings including construction details (Drg. Nr. 4082- GDL-XX-D-DR-C-003, 4082-GDL-XX-D-DR-C-010&011) prepared by Gemma Design Ltd are enclosed in Appendix F.

8.6 Regular inspections and maintenance is essential to ensure the effective operation of the surface water drainage systems and full details of the maintenance proposals are provided in Gemma Design report 4082-GDL-RP-C-002.

9 Other Sources Of Flooding

9.1 Consideration of other forms of flooding (non-fluvial) are set our below with reference to the Strategic Flood Risk Assessment(SFRA) of Epping Forest District Council and Harlow Council and the flood maps available on the Environment Agency’s website.

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Gemma Design Ltd

9.2 Flooding From The Land (Overland Flows)

9.2.1 Map 6 from the SFRA (enclosed in Appendix G) provides an overview of the areas likely to be at risk of surface water flooding in the district. As it is not suitable for assessing the flood risk of individual properties, due to the scale of the drawing and the fact that the site is shown in an area that is in a medium/high risk of surface water flooding on the EA’s website (A copy of the flood risk plan is also contained in Appendix G) a site specific assessment has been undertaken.

9.2.2 It is evident from a review of the topographical site survey that should overland flows enter the site then they are most likely to enter from areas at a higher elevation along the south- west boundary. It is therefore proposed to provide a cut off drain around the westerly/southerly perimeter of the site that drains in to the ditch along the easterly site boundary to reduce the potential for overland flows entering the development.

9.2.3 Although there is a risk of overland flows entering the development, the risk is considered to be manageable and should not affect the proposed buildings.

9.3 Flooding From Groundwater

9.3.1 Four boreholes were undertaken across the site up to a depth of 5m. Groundwater was struck in only one of the boreholes (WS4), seeping from the base of the made ground and resulting in water standing at a depth of 1.90m below ground level. According to the SFRA report, there are no reported groundwater flooding incidents in the vicinity of the site.

9.3.2 The risk of development flooding from groundwater is therefore considered to be low.

9.4 Flooding From Sewers

9.4.1 Map 3, enclosed in Appendix H, from the SFRA identifies the locations of historic flooding incidents recorded on the council’s flood incident databases.

9.4.2 Map 3 indicates that there was a drain flooding incident immediately north of the site, which the fire brigade attended. Whilst only limited information is available about this incident, it appears to have occurred on Crown Hill Road, which is at a lower elevation to the development. Therefore the risk of the development flooding due to a further incident is considered to be low.

9.5 Flooding From Artificial Sources

9.5.1 There are no artificial water sources in the area therefore the risk of flooding from this mechanism is considered to be negligible. The Environment Agency plan enclosed in Appendix I confirms that the site is located outside an area that is at risk of flooding from reservoirs.

10 Dry Islands

10.1 The EA flood map indicates that all of the surrounding areas are located in flood zone 1, therefore the development will not be located on a dry island.

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Gemma Design Ltd

11 Conclusion

11.1 This report has been prepared to support the discharge of a planning condition 12 associated with the proposed residential development at the Crown Hill, Upshire, Essex. The report addresses the relevant general issues in the National Planning Policy Framework (NPPF) to meet the requirements of the planning process.

11.2 The development is located in Flood Zone 1 (land assessed as having a less than 1 in 1000 annual probability of river or sea flooding in any year) and therefore the primary objective of the report is to consider the management of surface water run-off from the development and flooding from non-fluvial sources.

11.3 Sustainable drainage systems are proposed on the development to manage the surface run- off from the site.

11.4 A site investigation was undertaken by Land Science in 2015 (ref. LS 1940), in order to assess the suitability of using infiltration systems on the development. The falling head soakage tests indicated that soakaways are unlikely to perform satisfactory due to encountering clayey ground conditions.

11.5 Therefore, an attenuated connection to the adjacent watercourse to the east of the development is proposed and geocellular crates, in conjunction with a flow control device will be used to form the attenuation system. These will be located towards the south easterly end of the development, to accommodate a piped gravity connection. The rate of flow will be controlled using an orifice or similar flow control device and will discharge into the existing watercourse to the east of the proposed development. The flow will be restricted to 5.0 l/s.

11.6 An assessment of the risk of flooding from non-fluvial sources (overland flows, ground water and artificial sources) has been undertaken and is considered to be manageable or low.

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Gemma Design Ltd

12 References

Communities and Local Government: Technical Guidance to the National Planning Policy Framework.

Environment Agency (2012). Guidance Note 1: Development within a Critical Drainage area or greater than 1 hectare (ha) in Flood Zone 1

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Gemma Design Ltd

13 Appendices

Appendix A – Topographical Site Survey (Chinery Land Surveys CLS13079001)

Appendix B – Concept Studio MK Ltd Site plan – Nr. PL-05

Appendix C – Environment Agency’s Fluvial Flood Map

Appendix D – Site Investigation (Land Science LS 1940)

Appendix E – Microdrainage calculations

Appendix F – Proposed surface water drainage design & construction details (Gemma design Nr. 4082-GDL-XX-D-DR-C-003, 4082-GDL-XX-D-DR-C-010&11)

Appendix G – Map 6 from the Strategic Flood Risk Assessment (SFRA) – Flood Map for surface water

Environment Agency’s Surface Run-off Flood Map

Appendix H– Map 3 from the Strategic Flood Risk Assessment (SFRA) – Historical Flooding Incidents

Appendix I – Environment Agency’s Risk of Flooding from Reservoirs Map

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Gemma Design Ltd

Appendix A – Topographical Site Survey (Chinery Land Surveys CLS13079001)

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex 19/10/2013 Level 79.578 79.492 79.503 79.216 78.823 78.610 78.836 79.146 79.866 79.002 79.254 Marker Mercury Telecom Cover Overhead Cable Overhead Pipe Ordnance Survey Bench Mark Post Box Permanent Ground Marker Post & Rail Fence Post & Wire Fence Post & Wire Mesh Fence Rodding Eye Road Gully Road Name Road Sign Retaining Wall Rain Water Pipe Sapling Stop Cock Spread Traverse Station Stop Valve Soil Vent Pipe Storm Water Telephone Box Temporary Bench Mark Taken From Records Telephone Junction Box Trial Pit Traffic Light Telephone Pole Unable To Lift Unable To Trace Vent Pipe Water Key Hole Water Meter Water Valve MR WEST CLS13079001 Rev0 DRAWING NUMBER Northing MKR MT OHC OHP OSBM PB PGM PR PW PWM RE RG RN RS RW RWP SAP SC SPR STA SV SVP SW TB TBM TFR TJB TPT TL TP UTL UTT VP WKH WM WV 200437.970mN 200469.078mN 200453.507mN 200484.512mN 200502.859mN 200531.564mN 200508.006mN 200513.823mN 200539.395mN 200535.637mN 200558.545mN ESSEX Description OS NORTH KELVEDON LABURNUM MALDON ROAD Easting Tele 07818 445530 UPSHIRE, ESSEX 542471.007mE 542472.759mE 542478.473mE 542495.365mE 542503.410mE 542508.425mE 542490.004mE 542470.334mE 542454.970mE 542475.191mE 542457.311mE Survey Station Information ACC ACC 1:200 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 JOB No CLS13079 Email [email protected] STA No. CROWN LODGE, CROWN HILL - - - - - First Complete Issue TOPOGRAPHICAL SURVEY Close Boarded Fence Closed Circuit TV Chainlink Fence Chestnut Paling Fence Cover Level Cable Marker Catch Pit Catch Pit Base Level Diameter Drop Kerb Down Pipe Electricity Junction Box Electricity Cover Electricity Pole Earthing Rod Fire Hydrant Feed Into Ground Foul Water Gully Gas Valve Height Inspection Cover Invert Level Iron Railing Fence Kerb Outlet Litter Bin Lamp Column Lamp Post Manhole Assumed Route Borehole Bollard British Telecom Cover Barbed Wire Fence Brickwork Cable TV Cover ACC 4 3 1 5 2 0 Rev Topographical Abbreviations A/R BH BOL BT BW BWK CATV CB CCTV CHLK CHPL CL CM CP CPL DIA DK DP EJB EC EP ER FH FIG FW G GV HT IC IL IR KO LB LC LP MH Notes Grid is related to OS using GPS All levels related to OS using GPS SURVEYED DRAWN SCALE A0 Sheet - 1189mm x 841mm 200560.000N 200540.000N 200520.000N 200500.000N 200480.000N 200460.000N 200440.000N 200420.000N

542580.000E

542560.000E

542540.000E

542520.000E 79.07 78.29 78.20 78.58

78.19 P&R Fence Ht 1.30 78.29 78.59 77.64 78.92 78.21

77.48 77.48 Stay

78.82

77.90 78.65

77.71 77.87

77.47 PP 78.26 77.93 4 78.92 78.03 78.53

78.60

78.68

78.73 86.12

78.60 77.57 77.35 Ridge 77.98 78.78

1

Grass 78.02

79.12 Grass 1.90 Ht Fence Concrete TREE DIA:0.70 SPR:8.00 77.82 79.13 77.88 TREE DIA:0.80 SPR:12.00 78.80 78.50 TREE DIA:0.30 SPR:8.00 78.76 77.41 77.41 78.65 Assumed IC UTL CL78.40 Culvert ￿3LSH IL 78.48 78.51 79.16 TREE DIA:0.15 SPR:6.00

PP 79.08 78.05 OHC 78.54 Barn

3 78.63

Grass 78.41 78.95 78.93 78.79 78.52 78.47

2

78.67 78.78

78.54 OHC

Concrete 78.71

78.14 84.20

78.51 78.80

OHC 78.95 Eave 78.50 ￿ 79.27 78.78 78.49 IL78.20 IC CL78.67 OHC 78.81 83.63 IL78.19 78.14 IC CL78.63 79.29 ￿

Eave PP ￿ 78.13 78.84 79.15 78.73 78.48 ￿ 78.79 78.97 ￿ 78.84 78.57 Stones 78.98 78.83

86.51 79.28 78.85 78.19 79.16 542500.000E 79.00

Ridge 78.32 Column Step

Picket Fence Ht 1.00 78.91 Tarmac 78.94 78.86

78.34 OHC 78.62 Column

Wall Ht 0.90 Step 79.09

Grass OHC 79.01 Brick 78.87 79.04 78.55 79.02 79.06 Tarmac Column 7 78.40 78.73 CPS 79.11 Main House 78.92 79.16 78.88 78.55 78.59 A 8 79.14 Stones 78.93 79.25 A 79.53 79.03 79.20 78.47 78.92 78.83 78.89 OHC TREE DIA:1.00 SPR:18.00 78.42 78.77 79.00 78.91 Concrete 78.87 79.34 78.45 78.58 78.83 79.01 79.04 79.27

78.68 78.44 OHC 78.99 Gravel Concrete 78.46 77.85 Step 79.19 79.22 78.84 78.94 Concrete 79.29 78.90 78.71 79.25 79.17 79.06

78.93 78.91 78.57

CPS 78.59 78.72 Outbuilding 78.47

79.27 Blocks

78.46 Wall Ht 0.15 Ht Wall Barns 79.28 78.54 78.71 78.90 78.98 CPS 79.54 78.86 Step 78.92 79.31 79.32 78.98 78.72 78.64 79.48 79.07

Steps

79.35 Grass 78.92 Wall Ht 0.15 Ht Wall 78.99 TREE DIA:0.90 SPR:16.00 79.15 CPS 78.79 79.35 79.09 78.66 PP 77.98 Grass 78.67 79.04 79.26 TREE DIA:0.30 SPR:10.00 79.07 OHC 78.60 78.88 78.97 79.37 78.87 78.67 79.60 6 79.81 79.19 79.68

CB Fence Ht 0.95 TREE DEAD DIA:0.70 SPR:6.00 78.49 79.65 79.61 78.73 79.43 79.40

CB Fence Ht 2.00 79.15 TREE DIA:0.30 SPR:10.00 79.39 79.16 79.50 78.70 542480.000E 79.32 78.83 78.83 79.45 78.63 78.74 78.74

CB Fence Ht 2.00 5

78.69 79.30

78.09 79.35 CB Fence Ht 0.95 Ht Fence CB 78.78 78.96 78.55 Gravel 79.02 79.51 79.29 79.54 79.79 79.49 78.92 Vegatation 79.31 79.03 79.40 79.46 79.66 78.99 TREE DIA:0.30 SPR:12.00 79.12 78.56 78.94 79.49 79.63 78.75 79.39 78.56 79.80 79.23 79.56 79.51 79.62 78.24 78.55 79.06 TREE DIA:0.30 SPR:12.00 TREE 3xDIA:0.15 SPR:8.00 79.51 79.71 79.12 TREE DIA:0.90 SPR:16.00 79.56 79.06 79.27 79.55 79.21 78.77 Outbulding 79.15 79.18 79.57 78.46 79.00 78.37 Ramp 79.46 OHC 79.47 Grass 79.51 78.58 79.47 79.75 Vegatation 79.04 78.97 79.46 79.37 79.50 79.54 79.34 79.61 Grass 79.48 79.39 79.37 Concrete 79.62 79.63

CB Fence Ht 0.95

CB Fence Ht 2.00 79.31 79.23 79.36 79.11 79.78 79.05 79.54 TREE DIA:0.40 SPR:12.00 79.87 79.90 79.71 79.45 79.40 CB Fence Ht 2.00 TREE DIA:0.60 SPR:10.00 79.58 79.37 79.17 TREE DIA:0.30 SPR:8.00 79.48 79.73 79.38 79.47 79.75 79.14

542460.000E TREE DIA:1.60 SPR:28.00 Rootline 79.65 79.72 79.37 Outbulding 79.39 79.01 79.73 79.41 79.71 79.82 79.72 79.28 79.53 79.79 79.20 79.79 79.93 TREE DIA:0.15 SPR:12.00 79.71 TREE DIA:0.20 SPR:10.00 TREE DIA:0.40 SPR:12.00 79.32 79.91 79.32 Gravel 79.33 79.07 79.45 TREE DIA:0.70 SPR:18.00 TREE DIA:0.30 SPR:12.00 79.89 TREE DIA:0.60 SPR:18.00 79.46 79.76 79.66 Rootline TREE DIA:0.15 SPR:12.00 Shed

PW Fence Ht 1.10 79.58 79.48 79.51

79.45 79.43 79.91 P&R Fence Ht 1.20 Ht Fence P&R TREE DIA:0.50 SPR:12.00 79.83 79.97 TREE DIA:0.25 SPR:8.00 79.73 79.56 TREE DIA:0.40 SPR:12.00 79.99 TREE DIA:0.70 SPR:14.00 SPR:14.00 TREE 5xDIA:0.20 TREE DIA:0.20 SPR:6.00 79.55 79.71 79.57

542440.000E

542420.000E

542400.000E

542380.000E

Gemma Design Ltd

Appendix B – Concept Studio MK Ltd site plan – Nr. PL-05

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex communal bin store

existing dwelling ￿ ￿

CL78.67 IL78.20

CL78.63 IL78.19 ￿ ￿ ￿

parking gates courtyard

‘QHZGUDLQUXQ 

new hedge new hedge

5 bar gate gates 1.8m high cbf

shared turning area FW MH LOCATION PLAN 1:1250 CL79.04 1/60 IL78.36

new hedge FW MH CL79.45 Plot 1 IL78.75 LEGEND garden FFL 79.50 1.8m high cbf 5 bar gate 1.8m high close boarded fence & gates, as approved under Application parking 1/40 EPF/1097/14 space parking space FW MH 1.8m high close boarded fence, CL79.30 stained black Plot 2 IL78.70 demolish shown FFL 79.50 dashed 5 bar gate 1.2m high chain link fence link chain high 1.2m Carport garden 1.8m high close boarded rear gate patio

bike store Tarmac drive

Block paving (brindle) 1.2m high chain link fence

patio

1.8m high cbf 0 2 4 6 8 10 1.2m high chain link fence sw water to terminate into ditch SITE PLAN 1:200

REVISION: DATE: DRAWN: CHECKED: DESCRIPTION: REVISION: DATE: DRAWN: CHECKED: DESCRIPTION: PROJECT: concept studio mk ltd 54 Tenby Grove, Kingmeads Milton Keynes. MK4 4HN Telephone 07905 457742 cs E: [email protected] www.conceptstudiomk.co.uk

DRAWING TITLE: SCALE: PROJECT CODE:

DRAW DATE: DRAWN: CHECKED: DRAWING NUMBER:

DRAWING STATUS: REVISION DATE: DRAWN: CHECKED: REVISION: SHHET:

Gemma Design Ltd

Appendix C – Environment Agency’s Fluvial Flood Map

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex

Gemma Design Ltd

Appendix D – Site Investigation (Land Science LS 1940)

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex

PHASE I AND PHASE II GEOTECHNICAL AND GEO-ENVIRONMENTAL ASSESSMENT for the site at CROWN LODGE BARN, CROWN HILL, UPSHIRE, EN9 3TF on behalf of HARVEY DEVELOPMENTS

The Old Police Station • Jobs Lane • Sayers Common • West Sussex • BN6 9HE T: 0845 604 6494 • W: landscience.co.uk

Title: PHASE I AND PHASE II GEOTECHNICAL AND GEO-ENVIRONMENTAL ASSESSMENT

Project: CROWN LODGE BARN, CROWN HILL, UPSHIRE, EN9 3TF

Client: HARVEY DEVELOPMENTS

Date: 30/12/15

Reference: LS 1940

Version: V1.0

Checked by: ELLIOT TOMS CEnv M.Sc., B.Sc. (Hons.), F.G.S., MIEnvSci Managing Director

Checked by: MICHAEL ROSE M.Sc., B.Sc., F.G.S., AIEMA Senior Geo-Environmental Consultant

Land Science are Geotechnical Engineering and Contaminated Land specialists for construction, regulation, property ownership, and due diligence. By understanding our client’s needs and appreciating the role that ground issues play within a wider context, we are able to provide a reliable service and first class expertise tailored to their specific requirements. For more information on how we can benefit your project, please visit www.landscience.co.uk

Ground Investigation Page 2 of 35 Crown Lodge Barn, EN9 3TF

C O N T E N T S

1.0 INTRODUCTION ...... 7 1.1 General ...... 7 1.2 The Site ...... 7 1.3 Form of Development ...... 7 1.4 Previous Investigations ...... 7 1.5 Scope of Works ...... 7 1.6 Geotechnical Objectives ...... 7 1.7 Geo-Environmental Objectives ...... 8 1.8 Standards ...... 8

2.0 PHASE I DESK STUDY ...... 9 2.1 General ...... 9 2.2 Geological Setting ...... 9 2.3 Historical Borehole Records ...... 9 2.4 Hydrogeology ...... 9 2.5 Aquifer Designations ...... 10 2.6 Source Protection Zones ...... 10 2.7 Drinking Water Protection Zones ...... 10 2.8 Water Abstractions ...... 10 2.9 Hydrology ...... 11 2.10 Industrial Sources ...... 11 2.11 Waste Management Facilities ...... 11 2.12 Radon Gas ...... 12 2.13 Historical Maps ...... 12 2.14 Background Geochemistry ...... 13 2.15 Sensitive Land Uses ...... 13

3.0 SITE WALKOVER ...... 14 3.1 General ...... 14 3.2 Site Layout ...... 14 3.3 Local Vicinity ...... 14 3.4 Elevation and Topography ...... 14 3.5 Ground Conditions ...... 14 3.6 Surface Water and Groundwater ...... 15 3.7 Vegetation ...... 15

4.0 CONCEPTUAL SITE MODEL ...... 16 4.1 General ...... 16 4.2 Potential Sources ...... 16 4.3 Identified Receptors ...... 17 4.4 Source-Pathway-Receptor Linkages ...... 17

Continued…

Ground Investigation Page 3 of 35 Crown Lodge Barn, EN9 3TF

5.0 INTRUSIVE INVESTIGATION ...... 19 5.1 Investigation Strategy ...... 19 5.2 Soils Encountered ...... 19 5.3 Foundation Exposures ...... 20 5.4 Groundwater ...... 20 5.5 Geochemical Laboratory Analysis ...... 20 5.6 Geotechnical Field Testing ...... 21 5.7 Geotechnical Laboratory Testing ...... 22

6.0 GEOTECHNICAL ASSESSMENT ...... 23 6.1 General Foundation Design ...... 23 6.2 Volume Change Potential ...... 23 6.3 Traditional Shallow Foundations ...... 24 6.4 Ground Floor Slabs ...... 24 6.5 Excavations ...... 24 6.6 Pavements ...... 25 6.7 Building Materials ...... 25 6.8 Soakaways ...... 25

7.0 CONTAMINATION ASSESSMENT ...... 26 7.1 General ...... 26 7.2 Outline Risk Assessment ...... 26 7.3 End Users ...... 26 7.4 Soft Landscaping ...... 28 7.5 Building Materials ...... 28 7.6 Adjacent Land Users ...... 29 7.7 Controlled Waters ...... 29

8.0 WASTE ASSESSMENT ...... 30 8.1 General ...... 30 8.2 Non-Waste ...... 30 8.3 Waste Disposal ...... 30

REPORT CONDITIONS...... 32 GLOSSARY OF TERMS ...... 33 ACCOMPANYING NOTES ...... 34 REFERENCES ...... 35

Ground Investigation Page 4 of 35 Crown Lodge Barn, EN9 3TF

F I G U R E S

FIGURE 1: Site Location Plan FIGURE 2: Existing Layout / Investigation Layout FIGURE 3: Proposed Layout / Investigation Layout

A P P E N D I C E S

APPENDIX A: Photographs APPENDIX B: Engineering Logs APPENDIX C: Geotechnical Testing Results APPENDIX D: Contamination Testing Results APPENDIX E: Historical Maps APPENDIX F: Datasheet

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EXECUTIVE SUMMARY Appointment Geotechnical and environmental desk study and ground investigation. The intrusive investigation included 4no boreholes with associated field and laboratory analysis. Existing Site Collection of barns, driveway, parking areas and garden. The site is located at the rear of an existing residential property, but the site may have been used for agricultural or commercial activities previously. A stream runs along the eastern boundary, and mature Oak trees were noted. Development Two new low rise residential dwellings without basements. Ground Topsoil in soft landscaped areas (0.30-0.40m) and road plannings with rubble Conditions sub-base in the existing drive/car parking areas (0.40-0.60m). Subsoil comprising sandy gravelly clay (1.00-1.10m). Head Deposits close to the stream comprising gravelly clay 1.60-1.80m. Below this, London Clay was proved to >5.00m, comprising clay with silt pockets and selenite crystals. Groundwater Groundwater was towards the base of the Made Ground and soils close to the stream was wet at 1.00m. Foundations Traditional foundations designed to a maximum net allowable bearing capacity of 125kN/m2 on the Firm London Clay below 1.00m. The formation should be treated as being high volume change potential. Care should be taken to inspect foundation trenches. Excavations The superficial materials will be generally unstable, with the Head Deposits and London Clay being more stable. Water seepages are likely to be encountered, and excavations may need to be dewatered. Risk assessments and appropriate safety measures will be required. Pavements The formation will comprise subsoil and/or existing Made Ground. The formation will be frost susceptible and a minimum pavement thickness of 450mm should be considered. Building DS3 and AC2s in accordance with BS8005. Water supply pipe work will not Materials require protection from aggressive soil contaminants. Soakaways Unlikely to perform satisfactorily; disposal to sewer to the stream suggested. Gases/Radon No issues with respect to ground gases or Radon have been identified. Contamination Whilst low levels of Lead, PAH’s and Mineral Oil were recorded, these were not considered a risk. However, elevated Zinc was identified in the base of the driveway, part of which lies in the proposed garden area, which will need to be replaced with suitable verifiably clean topsoil from a reputable supplier. Waste The Made Ground is Hazardous Waste, and a WAC test is mandatory on these Disposal materials (which may downgrade the classification to Stable Non-reactive). The natural soils may be handled as Inert. Discovery A discovery strategy should be employed, so that any evidence of possible strategy unidentified contamination can be dealt with appropriately Further Action A Remediation Method Statement should be prepared, and the remedial works properly supervised and validated by an independent expert. This report should be submitted to relevant regulatory bodies and warranty providers in good time for approval. No immediate requirements for further investigation have been identified, other than a WAC test on the Hazardous Waste. This Executive Summary is intended to provide a brief summary of the main findings and conclusions of the investigation. For detailed information, the reader is referred to the main report.

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1.0 INTRODUCTION

1.1 General

Land Science was instructed by Harvey Developments to undertake a phase I and phase II geotechnical and geo-environmental investigation in relation to the proposed redevelopment of the site at Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF. The location of the site is shown on Figure 1, and is located at approximate National Grid Reference (NGR) TL42490, 00531.

1.2 The Site

In summary, the site comprised a number of brick and timber barns, an area of hardstanding, and a section of garden to an adjoining residential property. The layout of the existing site is indicated on Figure 2, and a site walkover survey is presented in section 3.0. The site area was approximately 0.19 hectares.

It was assumed that the Client was in ownership of the site; consequently, this assessment was not a pre-purchase appraisal.

1.3 Form of Development

The proposed development (part of planning application EPF/1097/14) was understood to comprise the demolition of the existing buildings and erection of two new dwellings. Figure 3 illustrates the layout of the proposed redevelopment.

1.4 Previous Investigations

Land Science was not aware of any previous desk studies or ground investigation(s) undertaken on the site.

1.5 Scope of Works

In accordance with the agreed scope, the investigation comprised the following: o A desk study o 4no window sampler boreholes to depths between 3.00 and 5.00m (WS1 to WS4) o Hand-excavated trial pits to expose the existing foundations o Preliminary falling head soakage tests in shallow boreholes

The fieldwork was conducted on 17th November 2015 under the supervision of Land Science.

1.6 Geotechnical Objectives

A geotechnical investigation was required to provide an interpretation of ground conditions with respect to shallow foundations, pavements, preliminary soakaways, concrete specification and excavation stability.

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1.7 Geo-Environmental Objectives

A desk-based and intrusive investigation was required, to provide a generic quantitative risk assessment (GQRA) in respect of the proposed redevelopment, adjacent land uses, and the wider environment, in the context of the planning regime.

1.8 Standards

Where practicable, the investigation was undertaken in accordance with the following documents and guidance: o Model Procedures for the Management of Contaminated Land, DEFRA and Environment Agency, September 2004 (“CLR11”). o Guiding Principles for Land Contamination, Environment Agency, March 2010, (“GPLC”). o National Planning Policy Framework, March 2012. o Building Regulations Approved Document C: Site preparation and resistance to contaminants and moisture, HM Government, July 2013. o NHBC Standards Chapter 4.1: Land Quality - Managing Ground Conditions, 2014. o BS 5930:1990 Code of Practice for Site Investigations o BS 1377:1990 Soils for Civil Engineering Purposes

Other technical sources have been cited in respect of specific aspects of the investigation, as referenced throughout the text.

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2.0 PHASE I DESK STUDY

2.1 General

A detailed geotechnical and geo-environmental desk study was prepared, and included a review of: o Maps and historical borehole records from the British Geological Survey o Information publically available online from the Environment Agency o Historical Ordnance Survey maps o A review of an Envirocheck data report

Copies of relevant data are presented in Appendix E and F.

2.2 Geological Setting

Based on mapping published online by the British Geological Survey (BGS), the geology of the site was anticipated to comprise the following succession:

Strata Generic description Head Deposits Comprises of sand and gravel, locally with lenses of silt, clay or peat and organic material. Argillaceous frost-shattered rock debris either in-situ or soliflucted. Soliflucted deposits have variable sand/clay content. London Clay Stiff grey fissured clay, weathering to brown near surface, with nodular Formation argillaceous limestone (“Claystones”), gypsum (Selenite) crystals and a basal sandy bed with black rounded gravel (“Basement Beds”). Published Geological Mapping

2.3 Historical Borehole Records

Records of boreholes drilled historically held by the BGS were inspected. A relevant borehole record was identified at Ravener’s Farm, 200m to the north of the site (Ref TL40SW38), and a summary is given on the following table.

Strata Base Depth (m) Summary Description Topsoil 0.15 - Unspecified (probable 4.40 “Firm, becoming stiff fissured clay with occasional London Clay) veins of fine sand and selenite crystals.” 10.00 “Stiff fissured silty clay with occasional veins of sand.” Summary of Borehole records TL40SW38

2.4 Hydrogeology

The BGS borehole records identified no groundwater within 10m depth. Based on the geology and topography of the local area, a relatively shallow groundwater table was anticipated, perched in the Head Deposits overlying the London Clay.

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2.5 Aquifer Designations

The Environment Agency classifies geological units across England and Wales into different designations as Aquifers. The designations for strata beneath the site are given below, which corresponds to an overall designation as a Secondary Undifferentiated Aquifer.

Strata Classification Details Superficial Secondary Assigned in cases where it has not been possible to attribute Undifferentiated either category A or B to a rock type. Bedrock Unproductive Low permeability strata that have negligible significance for Strata water supply or river base flow EA groundwater vulnerability data

2.6 Source Protection Zones

A groundwater Source Protection Zone (SPZ) is an area of protection placed around a well or borehole that supplies groundwater of potable quality. The following data has been identified on and within 250m of the site according to Environment Agency mapping:

Location Classification Details Within 250m No SPZ No groundwater Source Protection Zones were identified. Summary of Source Protection Zones within 250m

2.7 Drinking Water Protection Zones

A Drinking Water Protection Zone is similar to a SPZ. The following data has been identified on and within 250m of the site according to Environment Agency mapping:

Location Classification Details On site Surface water Protection zone classified on account of Pesticides (metaldehyde, carbetamide, propyzamide, chlorotoluron and clopyralid) Within 250m Groundwater No protection zone identified Summary of Drinking Water Protection Zones within 250m

2.8 Water Abstractions

Water abstractions identified as part of the desk study within a radius of 1000m of the site are summarised below.

Location Purpose Details None N/A No groundwater abstractions were identified within 1000m of the site. Summary of local groundwater abstractions

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2.9 Hydrology

A stream was identified running along the eastern site boundary, flowing in a northerly direction.

The Environment Agency identifies land potentially susceptible to flooding from seas, rivers, reservoirs and surface water. Current mapping indicates that the site does not lie within an area classified as being susceptible to significant flooding and therefore does not lie within an area benefiting from flood defences. Mapping also indicate that the site appeared to be at risk of flooding from surface water, however this was difficult to determine due to the scale of available mapping.

2.10 Industrial Sources

No discharge consents were identified within a radius of 250m.

The following pollution incidents were identified within a radius of 250m of the site boundary:

Location Classification Details 200m N Category 3 - Unknown incident of “Agricultural: General” pollutants on Minor Incident 17/02/1989. (Reference: NE890079) Summary of local recorded pollution incidents to groundwater

Searches of various databases were made as part of the desk study to identify industrial land uses within 250m of the site, as summarised on the following table:

Classification Details Location Contemporary trade Name: Refrigeration & Construction 80m NE directories Classification: Refrigeration Equipment - Commercial Status: Inactive Name: Joinery Solutions 138m E Classification: Joinery Manufacturers Status: Active Name: The Till Exchange 138m E Classification: Cash Registers & Check-Out Equipment Status: Inactive Name: Jd Bodyworks 183m E Classification: Garage Services Status: Inactive Name: P & B Furnishings 197m E Classification: Furniture - Repairing & Restoring Status: Inactive Summary of potentially onerous land uses

2.11 Waste Management Facilities

No waste management facilities were identified within 500m of the site.

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2.12 Radon Gas

The requirement for Radon Protection Measures (RPM) has been assessed in accordance with BRE 211:20071. The following data obtained from Public Health England applies to the site:

Aspect Classification Details Probability Not at risk Less than 1% of homes are estimated by PHE to exceed the threshold for Radon gas in residential dwellings. Protection No RPM required No Radon Protection Measures (RPM) are required for new Measures dwellings or extensions constructed at this location. Summary of PHE Radon data

2.13 Historical Maps

Large scale (e.g. 1:2,500) historical maps dating back to 1870 were obtained, and the key apparent features noted on site and the surrounding area are summarised below.

Date On Site Off Site 1870  Three buildings were noted on site,  The site was surrounded by open equating to part of the existing barns. fields and wooded areas.  The remainder of the site was part of an open field. 1896  One of the barns has been removed,  No significant changes noted. and another has been extended.  Several additional buildings were noted along the eastern site boundary.  A Pump was shown in the centre of the site. 1920  No significant changes noted.  Several buildings had been  The south of the site may be part of an constructed adjacent to the eastern Orchard. site boundary. 1972  The southern barn has been extended  Poultry houses were noted adjacent considerably. to the eastern and northern site  Two new structures are shown on the boundaries. north-east and south-east corners.  A Nursery was noted approximately 180m, to the north-west of the site. 1985  The southern barn has again been  The Poultry houses to the east of the redeveloped. site had been removed.  The recent structures in the north-  The M25 was noted approximately east and south-east corners are no 100m to the north of the site. longer shown. 1992  No significant changes noted.  No significant changes noted. Summary of Historical Maps

The outline of the site shown is geo-referenced to the current grid system; due to inaccuracies in mapping techniques the actual boundary on older maps may vary.

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Smaller scale (e.g. 1:10,000) maps were reviewed, but did not provide further relevant historical information. Given the size of these files sizes, larger scale maps are not appended and are available separately.

2.14 Background Geochemistry

The BGS publish data on background concentrations of selected contaminants across England and Wales. Data relevant to the site is summarised below:

Determinand Concnetration (mg/kg) Arsenic 15-25 Cadmium <1.8 Chromium 90-120 Lead <150 Nickel 15-30 BGS Background Geochemistry

2.15 Sensitive Land Uses

A search was made of environmentally sensitive areas, including areas of green belt, scenic or natural beauty, parks, reserves, nitrate zones, or protected conservation and scientific areas.

The site was indicated to occupy an area designated as an Area of Unadopted Green Belt (as of 3107/2005) and a Nitrate Vulnerable Zone. Also land 181m to the east of the site is designated as a Site of Specific Scientific Interest by Natural England (as of 05/03/1990).

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3.0 SITE WALKOVER

3.1 General

A site walkover was undertaken as part of the fieldwork on 17th November 2015. Photographs of the site are provided in Appendix A.

3.2 Site Layout

In summary, the site comprised an irregular shaped parcel of land, with a collection of brick and timber barns in the centre of the site, areas of hardstanding in the north, east and south, and part of a garden to the west. The outline of the site is shown on figure 2.

Access was gained via a shared metalled driveway leading passed Crown Lodge (a neighbouring residential property) to the north, leading to a parking area. The driveway continued passed the barns along the eastern boundary, and was noted to be rutted. The driveway then led to a second parking area in the south.

Adjacent to the driveway running along the eastern boundary was a small stream (described further in section 3.6). Around the barns to the west of the site was a large level garden area, laid to lawn (described further in section 3.7).

The brick barns were each single storey and timber framed with low brick walls, timber cladding and pitched tiled roofs. The floors of each barn was concrete surfaced and there was limited evidence of localised oily staining. The exception was the northernmost barn which appeared to have been converted into habitable space, and was in a poor state of repair.

3.3 Local Vicinity

To the north of the site was an existing residential dwelling, which was to be retained as part of the development. Parts of the proposed new driveway and parking was to be shared.

3.4 Elevation and Topography

The site was located at an approximate elevation of 79mOD, and sloped very gently to the north- east, with an overall fall in levels from corner to corner of less than 1m. The site occupied the centre of a valley, and ground levels locally sloped gently towards the stream running along the eastern boundary. There were no significant changes in slopes, evidence of cut or filling, excavations, evidence of ground movement or subsidence noted.

3.5 Ground Conditions

No evidence of existing soil conditions was observed, such as existing excavations or the like. No immediate evidence of significant structural movement was observed, although the inspection was cursory and a full inspection was outside the scope of this report.

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3.6 Surface Water and Groundwater

The survey was carried out during a period of heavy rainfall, and surface water ponded locally in the driveway and parking areas, but the remainder of the site appeared to remain dry.

A small stream was noted running along the eastern site boundary. The depth of the channel ranged between 0.60m and 1.00m deep relative to the site level. The water level was low, despite heavy rainfall, with perhaps only 0.10-0.20m depth of water.

No evidence of shallow groundwater, such as boggy waterlogged soils or water loving plants etc., were noted.

3.7 Vegetation

A number of trees were identified, particularly a line of Oak running along the western site boundary. Further Oak were identified off-site to the east, beyond the stream. No areas of dying or sparse vegetation, bare ground, or recently felled trees was identified.

A detailed arboricultural survey was outside the scope of this report. A survey may be required for tree root protection purposes or for assessing the depth of foundations in the vicinity of trees.

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4.0 CONCEPTUAL SITE MODEL

4.1 General

A preliminary geo-environmental Conceptual Site Model (CSM) was formulated for the site in light of the proposed development. The model has been used to identify possible contamination risks following a source-pathway-receptor (‘SPR’) approach and in accordance with best practice. The model may require revision where the development proposals differ, and should be reviewed in light of any ground investigation data or where unexpected conditions are encountered.

4.2 Potential Sources

Identified sources of possible contamination on site and in the immediate vicinity are summarised on the following table. The table identifies whether contaminants may remain in soil (S), cause ground gases or vapours to be generated (G), or be mobilised into the water table (W)

Source Description Contaminants S G W Made Made Ground may exist below Wide range of possible metals,    Ground buildings, in the shared non-metals, organic driveway. The provenance of contaminants, etc. such materials is unknown and may be contaminated. The depth of Made Ground was such that ground gases were considered unlikely.

Organic contaminants may generate vapours, which will reside in the gaseous phase.

Industrial The barns have been subject Wide range of possible metals,    land uses to numerous phases of non-metals, organic (on site) redevelopment, and may have contaminants, etc. been associated with either agricultural or unknown Given the former agricultural commercial land uses. use, pesticides and herbicides may also be present.

Organic contaminants may generate vapours, which will reside in the gaseous phase.

Identified sources of soil contamination

Contaminants may reside in soil, whilst mobile contaminants may enter groundwater, which may be perched in the Head Deposits overlying the London Clay. Ground gases were not considered to be a significant source of contamination, but vapours may be generated where sources significant sources of organic compounds are identified.

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4.3 Identified Receptors

Potential receptors associated with the site and the proposed development are summarised below:

Receptor Description Notes End Users Occupants of the proposed Residential development is proposed, redevelopment. comprising two new residential properties Soft Areas of planting including The development will include two new gardens. Landscaping lawns, shrubs, trees, etc. Building Built elements in contact New water supply pipework and buried Materials with the ground. structural concrete. Adjacent Land Sensitive land uses An existing residential dwelling was noted to the Users identified locally north, which is to be retained. Land in other directions is not considered to be at risk. Controlled Surface water in lakes and The site lies immediately adjacent to a small Waters rivers and groundwater in stream. Groundwater is not considered to be at aquifers etc. significant risk. Identified receptors

The following receptors have not been considered:

 Site workers: The safety of workers is governed under Health & Safety legislation, the CDM regulations, and COSHH regulations etc.  Ecological receptors: An assessment of such risks was outside the scope of this report

4.4 Source-Pathway-Receptor Linkages

Whilst the various possible sources and receptors have been identified, the following matrix illustrates the identified pathways by which a contaminant linkage might plausibly exist. Off-site sources impacting on off-site receptors have not been considered.

Sources

Soils Gases / Vapours Groundwater Ingestion, dermal End Users Inhalation None contact, inhalation

Soft Landscaping Plant Uptake N/A None

Building Materials Chemical attack N/A Chemical attack

Receptors Leaching-out, lateral Adjacent Land Users Lateral migration None migration Leaching, downward Controlled Waters N/A Lateral migration and lateral migration Identified Source-Pathway-Receptor Linkages

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With reference to CLR7, pathways for end users include ingestion (soil, dust, and home grown vegetables), dermal contact (dust and soil), and inhalation (of dust)

Contaminated Land Assessment Guidance 03/01/14UK considers risks from VOC and SVOC vapours from soil as a source.

Ground gases are unlikely to impact on controlled waters. There is no possibility of significant concentrations of dissolved gases within groundwater.

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5.0 INTRUSIVE INVESTIGATION

A factual record of the conditions encountered during the physical investigation of the site is presented in the following sections.

5.1 Investigation Strategy

Based on the geotechnical and geo-environmental factors identified as part of the desk study, the phase II intrusive investigation was set out as follows:

Aspect Position Target Location Notes Depth Windowless WS1 5m Existing garden area. Proposed Sampler WS2 3m dwelling / garden boreholes WS3 3m Existing driveway / parking Falling head soakage test WS4 3m area. Proposed dwelling / garden Foundation FE1 <1.20m Existing building exposures FE2 <1.20m Existing building Completed fieldwork

All positions achieved the target depth.

5.2 Soils Encountered

Generally the investigation confirmed the anticipated geological succession. A deep weathered soil profile was encountered, identified as subsoil. Topsoil was encountered at surface in the garden area, with Made Ground being present beneath the driveway / parking area. A summary of the encountered conditions is presented below. The identification of materials encountered as specific geological strata is tentative and should be used as a guide.

Base Depth m Strata Summary description WS1 WS2 WS3 WS4 - - 0.60 0.40 Made Road planings over brick/concrete rubble fill. Ground 0.40 0.30 - - Topsoil Silty sandy CLAY with occasional gravel and rootlets. 1.00 1.00 1.10 1.10 Subsoil Silty sandy CLAY with occasional gravel and rootlets. - - 1.60 1.80 Head Silty gravelly CLAY. Deposits 5.00 3.00 3.00 3.00 London Clay CLAY with sandy silt pockets with rare selenite crystals from 3.0m. Summary of encountered soils

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A slight organic odour was noted at WS3 between 0.60-1.10m. The samples were screened using a PID and no VOC’s were detected in the samples. Rootlets were recorded in WS1 and WS2 (0.0 to 1.0m) and WS4 (0.4 to 1.1m).

5.3 Foundation Exposures

A summary of the excavations made to expose and log existing foundations is presented below. Sketches are shown in Appendix B.

Position Depth Projection Materials Formation strata FE1 1.15m 0.11m Weak concrete London Clay FE2 0.50m 0.05m Brick Subsoil Foundation Exposures

5.4 Groundwater

Groundwater was struck during the excavation of WS4, seeping from the base of the Made Ground, and resulting in water standing at a depth of 1.90mbgl.

Groundwater conditions may vary significantly with seasonal variations in rainfall. Water may also become perched upon cohesive strata or around buried features such as foundations, and may also occur from leaking drains and water mains etc.

5.5 Geochemical Laboratory Analysis

Samples were selected for geochemical analysis as summarised below. In principle, samples of near surface soil (including topsoil and Made Ground) were analysed for a comprehensive screening suite. Samples from WS3, bearing evidence of an organic odour, were analysed for a breakdown of hydrocarbons. Two shallow samples (one topsoil and the other Made Ground) were screened for pesticides and herbicides). Finally, one representative sample of natural soil was screened for waste acceptance criteria (for waste disposal classification).

Suite WS1 WS2 WS3 WS3 WS3 WS4 0.20m 0.20m 0.50m 0.60m 1.00m 0.20m LS1    - -  TPH6 - - -  - - TPH7 - - - -  - LS2 - - -  - - Pesticides/ -   - - - Herbicides Screen Summary of chemical analysis

The relevant screening suites are defined below. Where duplicate analysis exists between suites, each test is performed only once:

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Suite Description Definition LS1 Screening pH, fraction of organic carbon, Metals and Non Metals, water suite soluble Sulphate, Sulphide, total Cyanide, total Phenols, speciated PAH’s. LS2 Waste Total Organic Carbon, Loss on Ignition, BTEX, speciated PCB’s, Acceptance Mineral Oil (EC10 – EC40), pH, Acid Neutralisation Capacity, Criteria speciated PAH’s, 10:1 leachable Metals and Non Metals. TPH6 Speciated Total petroleum hydrocarbons CWG banding incl. aliphatic and TPH aromatic split TPH7 Speciated Total petroleum hydrocarbons CWG banding incl. aliphatic and TPH aromatic split plus BTEX and MTBE. Geochemical analytical suites

The results of geochemical analysis are discussed in section 7.0.

5.6 Geotechnical Field Testing

Hand penetrometer tests were performed on samples of cohesive materials recovered within the boreholes. A plot of results versus depth is included below. The test is used to approximate undrained shear strength and in turn has been used to give an indication of consistency as defined in BS5930.

Summary of hand penetrometer results

The falling head soakage test carried out in WS3 failed to show a fall in water level over the duration of the test (2hrs) and was aborted. An infiltration rate could not be calculated.

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5.7 Geotechnical Laboratory Testing

Samples of soil were scheduled for laboratory geotechnical testing in accordance with the relevant British Standards in BS1377 following documented quality procedures.

Atterberg Limit tests were undertaken on selected samples of cohesive soils, as summarised below. A modified plasticity index (PI’) was calculated following the NHBC methodology, to account for any non-shrinkable percentage not passing the 425µm sieve, and a mean PI’ value is shown in brackets.

Strata No. of Plasticity index % Passing PI’ % tests (PI) % 0.425µm Subsoil 2 25 to 36 90 to 94 32.4 to 23.5 (mean 28.0) Head Deposits 1 51 88 44.9 London Clay 1 49 93 45.6 Summary of Atterberg (consistency) limit results

Moisture content determinations were undertaken in combination with various classification tests, and a profile of moisture content results versus depth is presented below.

Samples were also tested for water soluble Sulphate and pH were undertaken, summarised below:

Strata No. of tests Water soluble Sulphate (SO4 g/l) pH (value) Made Ground 1 0.060 7.8 Topsoil 1 0.029 6.7 Subsoil 1 0.074 7.7 London Clay 4 0.062 to 1.8 (mean 0.69) 7.8 to 8.2 (mean 8.0) Summary of Sulphate and pH determinations

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6.0 GEOTECHNICAL ASSESSMENT

The following recommendations have been made with respect to geotechnical design.

6.1 General Foundation Design

Perched water may be encountered at the base of the Made Ground and within the Head Deposits. Water may therefore be encountered in foundation excavations, and an allowance should be made for dewatering.

Whilst no evidence of desiccation was identified, high volume change soils were identified in the vicinity of high water demand broadleaf trees. Care should be taken during foundation excavation to check the formation level for signs of desiccation and any major root zones.

Based on the ground and groundwater conditions encountered, it is considered that traditional strip foundations would be appropriate for the proposed development.

6.2 Volume Change Potential

Soil shrinkability has been assessed following the NHBC Standards Chapter 4.2 (April 2014 version). It is recommended that the advice of this publication (or similar guidance) is taken when designing and constructing foundations in the zone of influence of trees and hedgerows that currently exist, are to be planted, or have recently been felled.

Strata % passing Modified Plasticity Shrinkability classification 425µm sieve Index London Clay - >40% High volume change potential

Heave protection requirements for high volume change potential soils are summarised below. In addition to the depths marked *, localised deepening of foundations will be required in the influence of trees; it will be necessary to evaluate tree species and height in relation to the proposed building footprints. If not already carried out, an arboricultural survey will be required.

Volume Change Potential High Minimum foundation depth outside zone of influence (m) * 1.00m No tree planting zone for minimum depth foundations (m) 1.0 x mature tree height Minimum foundation depth allowing for restricted new planting (m) * 1.50m Minimum against side of foundations and ground beam 35mm void beneath ground beam and suspended in-situ concrete 150mm dimension ground floor beneath suspended precast concrete or timber floors 300mm Minimum allowance for potential ground movement for new drains 150mm Summary of NHBC requirements for shrinkable soils

Void former will be required for foundations deeper than 1.50m and within the influence of trees.

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6.3 Traditional Shallow Foundations

All foundations should be taken through any Made Ground, soft or loose zones, disturbed soils, major root zones, or desiccated materials.

Such foundations taken wholly into or onto the firm clays of the London Clay up to a width of 1.00m may be designed based on a maximum allowable net bearing pressure of 125kN/m2. This assessment includes an appropriate factor of safety against shear failure, and settlements should remain within appropriate limits.

The London Clay will soften rapidly when exposed to free water. The final 50mm of any foundation trench should not be excavated until immediately before concreting, unless blinded or otherwise protected immediately after excavation.

6.4 Ground Floor Slabs

Given the presence of soils susceptible to volume change potential (i.e. shrinkable), it is recommended that all ground floor slabs should be fully suspended with a suitable minimum void space.

6.5 Excavations

The risks arising from excavation works should be properly assessed and appropriate safety precautions should be adopted. Reference may be made to various guidance including BS8000- 1:1989, BS0631:2009 and CIRIA C97.

The likelihood of excavation instability through different strata has been assessed as summarised below. It should be noted that all open unsupported excavations have the potential to collapse.

Strata Stability Topsoil/Made Ground Generally unstable. Head Deposits Should remain generally stable. London Clay Generally stable. Excavation Stability

Water seepages may be encountered at shallow depth, particularly during wetter climatic conditions, and therefore some localised dewatering and trench support may be required.

It is considered that normal-rated plant and machinery will be sufficient for undertaking excavations. Breakers will be required for breaking-up any former foundations, retaining walls etc. Care should be taken so as not to undermine existing structures or adjacent property.

Adjacent excavations should generally be tackled in order of depth with the deepest first. Vehicles and spoil heaps etc. should not surcharge excavations, and edge protection and fencing should be used as appropriate. Frozen materials should generally not be used as backfill.

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6.6 Pavements

The formation level for pavements is expected to comprise a mixture of subsoil and Made Ground. The engineering characteristics of such soils are highly variable and unpredictable. As such it would be prudent to assume the material to be frost susceptible throughout, thus a minimum pavement thickness of 450mm would be appropriate.

The formation level should be carefully inspected, and any soft or loose zones should be removed and replaced with engineering fill, well-compacted in layers to a suitable specification. Consideration might be given to installing geotextiles, which may improve pavement performance and reduce thicknesses of imported engineered fill. Cohesive formations will degrade rapidly if exposed to standing water for even short periods.

6.7 Building Materials

Based on BS8005-1:2006, the results of the Sulphate and pH analyses fell into Class DS-3 and an ACEC class AC-2s is deemed appropriate. The advice of this publication should be taken for the design and specification of all sub surface concrete.

Buried plastics used for potable water supplies will not require upgrading to resist chemical contamination. No pipework should be laid where there is evidence of hydrocarbons or free product.

6.8 Soakaways

The preliminary falling head soakage test confirmed that shallow soakaways are unlikely to perform satisfactorily. Consideration might be given other means of disposal such as discharge to surface water sewer. It might also be possible to discharge water under licence to the stream noted on the eastern boundary.

Ground Investigation Page 25 of 35 Crown Lodge Barn, EN9 3TF

7.0 CONTAMINATION ASSESSMENT

7.1 General

A Tier 1 Generic Quantitative Risk Assessment (GQRA) has been prepared for soil contamination. It should be noted that the presence of a possible contaminant does not necessarily imply that a site or area is contaminated or that there is any unacceptable risk to human health.

7.2 Outline Risk Assessment

The Conceptual Site Model identified the following source-pathway-receptor linkages in respect of potential contaminants in soil:

o End users: ingestion (soils, dusts, homegrown vegetables), dermal contact (with soils and dust) and inhalation (of dusts and vapours) o Soft landscaping: plant uptake (in areas of former hardstanding) o Building materials: chemical attack from contaminants in soils and groundwater o Adjacent land users: leaching-out of contaminants, migrating laterally through soil to the north o Groundwater: leaching-out of contaminants, migrating laterally and impacting on the adjacent watercourse

7.3 End Users

The soil chemical analysis results have been compared against respective screening values for residential land uses. A number of different schemes are currently in use in the UK, and have been applied in the following hierarchy:

o Background contaminant concentrations published by the BGS. o Category 4 Screening Levels (C4SL) recently published by the DEFRA and CL:AIRE. o Soil Guideline Values (SGV's) published by the Environment Agency using the CLEA Model. o Generic Assessment Criterion (GAC) published by LQM and CL:AIRE in partnership with the CIEH.

For contaminants where the respective screening value is dependent on Soil Organic Matter (SOM), the corresponding value for 2.5% was used (the arithmetic mean SOM value for the samples tested was 3.5%). Where no standard exists, the contaminant is either not considered a priority in terms of human health (at least in the scenario being considered), or no screening value has been published.

The data compared to the respective adopted SGV/GAC is presented shown in the appendix. The table overleaf summarises the chemical results which exceeded the respective thresholds. In summary, elevated lead was recorded in both Topsoil and the Made Ground. Elevated PAH’s were recorded in the Made Ground at WS4 0.20m, which was attributed to the proportion of bituminous tarmacadam fragments in the road plannings.

The levels of Lead recorded exceeded the estimated background level published by the BGS for the immediate vicinity (<150mg/kg). However, as similar levels of Lead were recorded in both the natural topsoil and in the Made Ground, it is considered that the results recorded may, at least in part, be representative of background levels. The M25 is noted approximately 100m to the north of the site,

Ground Investigation Page 26 of 35 Crown Lodge Barn, EN9 3TF

and elevated levels of Lead are known to occur in the vicinity of major roads. As such, in accordance with current guidance, the levels recorded cannot be deemed to represent contamination. The levels of Lead are within typical limits for urban soils.

Determinand Screening Value In excess of screening value Lead 200mg/kg WS1 0.20m - topsoil - 440mg/kg WS2 0.20m - topsoil - 470mg/kg WS3 0.50m - Made Ground - 260mg/kg WS4 0.20m - Made Ground - 750mg/kg Benzo(a)anthracene 4.7mg/kg WS4 0.20m – Made Ground – 5.9mg/kg Benzo(a)pyrene 5.0mg/kg WS4 0.20m – Made Ground – 6.0mg/kg Indeno(1,2,3-cd)pyrene 3.9mg/kg WS4 0.20m – Made Ground – 4.2mg/kg Di-benzo(a,h)anthracene 0.86mg/kg WS4 0.20m – Made Ground – 0.96mg/kg Determinands exceeding adopted SGV’s/GAC

The proposed location of WS4 corresponded to a proposed driveway. As such the materials would either be excavated and removed or simply encapsulated by new construction. This effectively blocks all pathways and, whilst the inhalation of vapour pathway would remain, the level of risk was safely within acceptable limits.

The mineral oil analysis carried out as part of the waste acceptance criteria test on WS3 0.60m (where an organic odour was identified) recorded a concentration of 86mg/kg. However, the speciated hydrocarbon analysis on this sample of the underlying material at 1.00m did not identify any hydrocarbons.

The risks from TPH’s are assessed differently from other contaminants. The ratio of an individual group of carbon bands to the respective GAC is calculated (a Hazard Quotient) and these are totalled to derive a sample specific Hazard Index. A Hazard Index exceeding 1.0 suggests a potential significant risk to human health in the exposure scenario considered. As Mineral Oil was recorded, it was assumed to be >EC35. As no TPH’s were detected, and the calculated hazard quotients were approaching zero. No risk was identified.

No pesticides or herbicides were detected in the two samples tested.

In summary, it is concluded that:

 Whilst elevated levels of Lead were recorded, these were attributable to background levels.  Whilst elevated PAH’s were recorded, this was attributable to bitumen in the road plannings contained in the Made Ground  Whilst an organic malodour was recorded in one sample, this posed no risk to human health  No other contaminants were recorded at elevated levels

With reference to section 7.4, it should also be noted that any shallow Made Ground will be removed from the new garden area.

Therefore, it is considered that no remedial significant risk is posed to human health.

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7.4 Soft Landscaping

A number of documents include guidance on screening levels of phytotoxic contaminants within soils, including: o ICRCL in publication 70/90 1990 'Notes on the Restoration and Aftercare of Metalliferous Mining Sites for Pasture and Grazing' (although indirectly withdrawn). o BS3882:2007 “Specification for topsoil and requirements for use” (although stipulated as not to be used in contaminated land risk assessment).

The results of the chemical analysis for determinands known to pose a potential phytotoxic risk to plant growth are summarised on the following table, together with the respective adopted screening values for plant growth. The results of the chemical analysis were evaluated singularly without the use of statistical tools.

Determinand Phytotoxicity Value (mg/kg) Results in excess of screening value Zinc 1,000 WS4 0.20m 1,800mg/kg Cadmium 50 None Copper 250 None Arsenic 1,000 None Summary of Plant Phytotoxicity Assessment

On this basis, it was concluded that elevated Zinc in the Made Ground might pose a risk of phytotoxic effects on plant growth. Furthermore, the Made Ground was not considered suitable to be retained in new soft landscaped areas.

Therefore, remedial measures were considered necessary in this respect. The Made Ground in garden areas should be excavated and removed from site and replaced with verifiably clean uncontaminated topsoil or sub-soil from a reputable supplier.

7.5 Building Materials

Recommendations with respect to Sulphate and buried concrete are made in section 6.7. It is noted that whilst an upgraded cement specification is required, this is on account of naturally occurring soluble Sulphates in the London Clay.

The risk of chemical attack on water supply pipework has been assessed following the general Principals set out in the joint Water UK/HBF Contaminated Land Assessment Guidance dated January 2014. A summary of the main chemical criteria is reproduced overleaf.

The recorded concentration of Mineral Oil did not exceed the respective threshold. In the absence of VOC’s in PID screening, the mineral oil was not

Ground Investigation Page 28 of 35 Crown Lodge Barn, EN9 3TF

Test group (in mg/kg) Polythylene Steel Ductile Iron Copper VOC’s 0.5 Pass Pass Pass BTEX & MTBE 0.1 Pass Pass Pass SVOC’s (excl. PAH’s etc.) 2.0 Pass Pass Pass Phenols 2.0 Pass Pass Pass Cresols & Chlorinated Phenols 2.0 Pass Pass Pass Mineral oil EC5-EC10 2.0 Pass Pass Pass Mineral oil EC10-EC16 10 Pass Pass Pass Mineral Oil EC16-EC40 500 Pass Pass Pass pH Level - <7.0 <5.0 <5.0 or >8.0 Redox Potential - - Not neutral Positive Conductivity - EC >400µS/cm EC 400µS/cm - Summary of UK/HBF Guidance Concentrations

Redox potential and Conductivity should be checked where metal pipework is to be installed. Aluminium barrier pipework is acceptable under all conditions. No pipework should be laid where there is evidence of free product.

7.6 Adjacent Land Users

Surrounding land uses were identified to comprise residential land uses, analogous with the proposed development on site. With reference to section 7.5, no possible risk was posed to human health. In light of the CSM, it is therefore concluded that the soils on this site pose no significant risk to surrounding land uses.

7.7 Controlled Waters

Whilst elevated levels of certain contaminants were detected locally in the soils, Lead was attributed to background levels, PAH’s attributed to relatively inert bituminous materials in road plannings, and a single occurrence of Mineral Oil corresponded to long chain hydrocarbon species which may or may not be naturally occurring. The Made Ground in garden areas was to be removed, on account of returning the area to soft landscaping. The results of the soil-leachate analysis did not identify any significantly elevated contaminants. The site overlies London Clay, classified as unproductive strata, and a thin veneer of low permeability Head Deposits was recorded, which is unlikely to be used for abstraction. It is therefore concluded that the site is unlikely to pose a significant risk to controlled waters.

Ground Investigation Page 29 of 35 Crown Lodge Barn, EN9 3TF

8.0 WASTE ASSESSMENT

8.1 General

Waste may be defined as any substance or object in Annex 1 of the Waste Framework Directive2 which the holder discards, intends to discard, or is required to discard. Subject to certain provisions, soils may either be handled as either: o Non-Waste, and re-used (on or off-site), or o Waste, and disposed of (to a waste management facility).

8.2 Non-Waste

Soils may be handled as Non-Waste and re-used on site (or on other sites) in accordance with various protocols such as those published by the EA3 or CL:AIRE4. Typical requirements include: o That the re-use of material will not endanger human health, cause nuisance, or harm the wider environment (controlled waters, ecosystems, etc.) o That there is there a clear Environmental benefit from the activity, and that the waste is being used as a substitute for non-waste material. o The materials are suitable for use in terms of chemical and geotechnical parameters without further treatment. o The holder is certain that the materials will be used in a safe manner, and only the necessary quantities of materials are being used. o Where the activities do not require a waste management licence (e.g. landfilling). o A Waste Recovery Plan (EA) or Materials Management Plan (CL:AIRE) are produced and followed, and audited in a Verification Plan.

The Made Ground is not considered suitable for re-use on site on account of elevated metals, Lead and PAH’s. The natural soils are considered to be potentially suitable for re-use.

Soil Suitability for re-use on site Landscaping Hard cover Not suitable Made Ground  Natural Soils   Possible re-use of soils on site as Non-Waste

8.3 Waste Disposal

Where materials are not to be re-used they must be handled as Waste, and the materials must be sent to a licenced waste management facility. The classification of waste is prescribed under the Waste Framework Directive and the Landfill Directive5, and a summary of the waste classification protocol is presented below. Different facilities may also have specific acceptance criteria.

Ground Investigation Page 30 of 35 Crown Lodge Barn, EN9 3TF

Waste Classification

The results of the soil analysis have accordingly been classified as shown below.

Soil Sample Hazardous Non Hazardous Hazardous Stable Non- Non- Inert Reactive Hazardous WS1 0.20m  Topsoil WS2 0.20m  Head Deposits WS3 0.60m  Made Ground WS4 0.20m  Summary Waste Classification

The levels of Zinc and other metals caused the material to be Hazardous by way of H14. A full Waste Acceptance Criteria test is mandatory, and may enable the material to be re-classified as Stable Non- Reactive Hazardous Waste.

The remaining samples were not identified as Hazardous Waste, and based on the Waste Acceptance Criteria test on the sample from WS4 0.20m these materials may be handled as Inert.

With reference to the current List of Wastes (formerly European Waste Catalogue), waste soils and stone derived from construction and demolition sites may be disposed of under either of the following codes as appropriate:

Waste Code Description Hazardous 17 05 03* soil and stones containing dangerous substances Non-Hazardous 17 05 04 soil and stones other than those mentioned in 17 05 03 Waste classification codes for soil arisings

Ground Investigation Page 31 of 35 Crown Lodge Barn, EN9 3TF

REPORT CONDITIONS

Interpretation of ground conditions inherently depends on the conditions revealed by a limited data set. Whilst we take all reasonable care in interpreting such data, any spatial or temporal extrapolation or inference is conjectural and no liability can be accepted for its accuracy. In particular the concentrations or levels of mobile liquid and gaseous materials are likely to vary over time, and conditions may vary between or below points of investigation.

Furthermore, we do not accept liability for the means of interpreting such data, such as the validity of published assessment criteria or methodologies. We accept no liability for the design of the investigation or any other work carried-out by other parties. We do not accept liability for data not identified in any desk study, or through the absence of a desk study, such as previously unidentified historical land uses or water abstractions.

This report exclusively relates to ground issues and makes no representation in respect of other matters such as topographic layout, ecology, arboriculture, or hazardous materials such as chemicals or asbestos in buildings. No aspect of this report should be taken as a guarantee that a site is free of hazardous or potentially contaminative materials.

Whilst every effort is made to tailor the investigation to suit within practical constraints as works progress, it may become necessary to undertake additional investigation work. It is an inherent aspect of any investigation that areas of concern not previously anticipated are identified as the works progress. Furthermore, elements of the project design may vary during or after completion of the investigation, which may require reappraisal.

Information contained in this report is intended for the use of the Client and his agents for the purposes set-out in the text, and Land Science makes no warranty or representation whatsoever express or implied with respect to the use of this information by any other party or for uses other than those described. We do not indemnify the Client or any third parties against any dispute, claim or consequential losses arising from any finding or other result of this investigation report.

Ground Investigation Page 32 of 35 Crown Lodge Barn, EN9 3TF

GLOSSARY OF TERMS

BGS British Geological Survey BH Borehole BRE Building Research Establishment BSI British Standards Institute CBR California Bearing Ratio CDM Construction Design and Management regulations CEH Centre for Ecology and Hydrology CFA Continual Flight Auger CIRIA Construction Industry Research and Information Association CL:AIRE Contaminated Land: Applications in Real Environments CLEA Contaminated Land Exposure Assessment model CLR Contaminated Land Remediation report CLR11 Model Procedures for the Management of Land Contamination, DEFRA & EA, 2004 COSHH Control of Substances Hazardous to Human Health regulations COMAH Control of Major Accident Hazards regulations CSM Conceptual Site Model DEFRA Department for Environment, Food and Rural Affairs DETR Department for Environment, Transport and the Regions DQRA Detailed Quantitative Risk Assessment DP Dynamic Probe EA Environment Agency EQS Environmental Quality Standards F.O.C Fraction of Organic Carbon GAC Generic Assessment Criterion GQRA Generic Quantitative Risk Assessment HSE Health and Safety Executive ICRCL Inter-departmental Committee for the Redevelopment of Contaminated Land IPC Integrated Pollution Control IPPC Integrated Pollution Prevention and Control MBGL Meters Below Ground Level NHBC National House Building Council NIHHS Notification of Installations Handling Hazardous Substances OD Ordnance Datum PAH’s Polycyclic Aromatic Hydrocarbons PBET Physiological Based Extraction Testing PHE Public Health England PID Photo-Ionisation Detector PQRA Preliminary Quantitative Risk Assessment PSD Particle Size Distribution Test RMS Remediation Method Statement SGV Soil Guideline Value SOM Soil Organic Matter SPZ Source Protection Zone SPT Standard Penetration Test SSSI Sites of Special Scientific Interest ST-WEL Short Term Workplace Exposure Limit SVOC’s Semi-Volatile Organic Compounds TP Trial Pit TPH Total Petroleum Hydrocarbons TRRL Transport Road Research Laboratory TWA-WEL Time Weighted Average Workplace Exposure Limit UK HBF United Kingdom House Building Federation VOC’s Volatile Organic Compounds WAC Waste Acceptance Criteria WS Window (or windowless) Sampler

Ground Investigation Page 33 of 35 Crown Lodge Barn, EN9 3TF

ACCOMPANYING NOTES

Screening Suites

The LS1 routine screening suite is based broadly upon determinands listed within the former ICRCL guidance note 59/83 2nd edition 1987, CLR publication CLR8, and Environment Agency R&D66 publication. Additional testing for stone and moisture content, fraction of organic carbon (‘foc’), and pH value, were also undertaken. Given that Sulphate is not a priority in terms of human health, water soluble Sulphate is analysed instead in order to assess the risks posed to the built environment.

Site Workers

Site managers are responsible for the safety of persons in their employ under a variety of instruments including the CDM regulations and health and Safety at Work Act. In terms of working on contaminated sites, guidance can be sought from the CIRIA publication entitled "A Guide for Safe Working on Contaminated Sites". Any work in confined spaces confined spaces should only be carried out following appropriate risk assessment and following suitable safety protocols in accordance with the HSE guidance entitled "Work in Confined Spaces". A detailed risk assessment can be prepared in this respect, but is outside the scope of this appointment.

Ground Investigation Page 34 of 35 Crown Lodge Barn, EN9 3TF

REFERENCES

1 Radon: Guidance on protective measures for new buildings, BRE Report BR 211, 2007 2ND edition 2 Revised EU Waste Framework Directive 2008 2008/98/EC [transposed into English law under The Waste (England and Wales) Regulations 2011] 3 Defining Waste Recovery - Permanent Deposit of Waste on Land, EPR13 v1.0, EA 2010 4 The definition of waste: Development Industry Code of Practice, v2, CL:AIRE 2011 5 European Community (EC) Directive 1999/31/EC [transposed into English law under the Landfill (England and Wales) Regulations 2002]

Ground Investigation Page 35 of 35 Crown Lodge Barn, EN9 3TF

North

Locations are indicative. Not to scale.

TITLE: REF: Site Location LS 1940 PROJECT: VERSION Crown Lodge Barn, Crown Hill, Upshire, EN9 3TF v1 CLIENT: FIGURE: Harvey Developments 1 PREPARED: CHECK: DATE: SHEET No: JH ET 14/11/2015 page: 1 of 1 THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] North

WS1 TP2 TP1

WS4

WS2

WS3

Locations are indicative. Not to scale.

TITLE: REF: PREPARED: Existing Site / Investigation Layout LS 1940 JH PROJECT: VERSION: CHECKED: Crown Lodge Barn, Crown Hill, Upshire, EN9 3TF v1 ET

CLIENT: FIGURE: DATE: Harvey Developments 2 18/11/2015

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] North

TP2

WS1 WS4

TP1

WS3 WS2

Locations are indicative. Not to scale.

TITLE: REF: PREPARED: Proposed Site / Investigation Layout LS 1940 JH PROJECT: VERSION: CHECKED: Crown Lodge Barn, Crown Hill, Upshire, EN9 3TF v1 ET

CLIENT: FIGURE: DATE: Harvey Developments 3 18/11/2015

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected]

APPENDIX A

Area between 2 barns Inside barn Inside barn

Inside barn Inside barn Inside barn

TITLE: REF: PREPARED: Photographs LS 1940 ET PROJECT: VERSION: CHECKED: Crown Lodge v1 ET

CLIENT: FIGURE: DATE: Harvey Construction n/4 21/01/2012

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] Inside converted barn land to the south Stream (to the south)

Access via the north North of the site Steam / eastern boundary

TITLE: REF: PREPARED: Photographs LS 1940 ET PROJECT: VERSION: CHECKED: Crown Lodge v1 ET

CLIENT: FIGURE: DATE: Harvey Construction n/4 21/01/2012

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] TITLE: REF: PREPARED: Photographs LS 1940 ET PROJECT: VERSION: CHECKED: Crown Lodge v1 ET

CLIENT: FIGURE: DATE: Harvey Construction n/4 21/01/2012

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected]

APPENDIX B

FIELD DESCRIPTION FIELD TESTING SAMPLING WATER FILL 0.00 Dark brown silty sandy CLAY with occasional gravel and rootlets (TOPSOIL). 0.20 - 0.20 D

0.40 Light bown/ orange-brown/ grey brown mottled silty fine sandy 0.50 H = 1.5 kg/cm2 0.50 - 0.50 D CLAY with occasional gravel sized flints, carbonaceous flecks, and stiff rare rootlets (SUBSOIL).

0.75 H = 2.4 kg/cm2 stiff

1.00 1.00 H = 1.8 kg/cm2 1.00 - 1.00 D Brown CLAY with occasional orange/brown fine sandy silt pockets stiff and occasional weak gravel sized mudstone fragments. (LONDON CLAY FORMATION) 1.25 H = 1.4 kg/cm2 firm

1.50 H = 2.0 kg/cm2 1.50 - 1.50 D stiff

1.75 H = 2.0 kg/cm2 stiff

2.00 H = 2.2 kg/cm2 2.00 - 2.00 D stiff

2.25 H = 0.3 kg/cm2 very soft

2.50 H = 1.6 kg/cm2 2.50 - 2.50 D ... from 2.60 becoming thinly laminated stiff

2.75 H = 1.6 kg/cm2 ... at 2.80m 30° inclined fissure with orange brown fill stiff (<1mm wide) ... from 3.00 becoming brown-dark brown locally blue-grey 3.00 H = 1.4 kg/cm2 3.00 - 3.00 D with rare salenite crystals. firm

3.25 H = 1.8 kg/cm2 stiff

3.50 H = 1.8 kg/cm2 3.50 - 3.50 D stiff

3.75 H = 2.4 kg/cm2 stiff

4.00 H = 2.4 kg/cm2 4.00 - 4.00 D stiff

4.25 H = 3.7 kg/cm2 very stiff

4.50 H = 2.6 kg/cm2 4.50 - 4.50 D stiff

4.75 H = 2.9 kg/cm2 stiff

5.00 5.00 H = 2.8 kg/cm2 5.00 - 5.00 D Borehole complete at 5.00m stiff REMARKS TITLE: REFERENCE: POSITION: Stability: No instability encountered Window Sampler Log LS 1940 WS1 Groundwater: No groundwater encountered. PROJECT: ELEVATION: CO-ORDINATES: Crown Lodge Barn, Crown Hill, EN9 3TF N/A Not to scale Chiselling: Not applicable CLIENT: METHOD: Casing/dia: Not applicable Harvey Construction Archway "Dart" Windowless Backfilling: Position backfilled with arisings DRILLED BY: LOGGED BY: STARTED: SCALE: AA ET 17/11/2015 Not to scale Notes: Hand excavated to 1.00mbgl INPUTTED BY: CHECKED BY: COMPLETED: SHEET No: JY ET 17/11/2015 Page: 1 of 1

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] FIELD DESCRIPTION FIELD TESTING SAMPLING WATER FILL 0.00 Dark brown silty sandy CLAY with occasional gravel and rootlets (TOPSOIL). 0.20 - 0.20 D 0.30 Light bown/ orange-brown/ grey brown mottled silty fine sandy CLAY with occasional gravel sized flints, carbonaceous flecks, and rare rootlets (SUBSOIL). 0.50 H = 1.5 kg/cm2 0.50 - 0.50 D stiff

0.75 H = 1.5 kg/cm2 stiff

1.00 1.00 H = 1.9 kg/cm2 1.00 - 1.00 D Brown CLAY occasionally orange/brown fine sandy silt pockets stiff with occasional weak gravel sized mudstone fragments. (LONDON CLAY FORMATION) 1.25 H = 1.1 kg/cm2 ... rootlet at 1.30m firm

1.50 H = 1.4 kg/cm2 1.50 - 1.50 D firm

1.75 H = 1.6 kg/cm2 stiff

2.00 H = 2.4 kg/cm2 2.00 - 2.00 D stiff ... thinly laminated from 2.20m 2.25 H = 2.5 kg/cm2 stiff

2.50 H = 1.8 kg/cm2 2.50 - 2.50 D stiff

2.75 H = 2.0 kg/cm2 stiff

3.00 3.00 H = 1.7 kg/cm2 3.00 - 3.00 D stiff

Borehole complete at 3.00m

REMARKS TITLE: REFERENCE: POSITION: Stability: No instability encountered Window Sampler Log LS 1940 WS2 Groundwater: No groundwater encountered. PROJECT: ELEVATION: CO-ORDINATES: Crown Lodge Barn, Crown Hill, EN9 3TF N/A Not to scale Chiselling: Not applicable CLIENT: METHOD: Casing/dia: Not applicable Harvey Construction Archway "Dart" Windowless Backfilling: Position backfilled with arisings DRILLED BY: LOGGED BY: STARTED: SCALE: AA ET 17/11/2015 Not to scale Notes: Hand excavated to 1.00mbgl INPUTTED BY: CHECKED BY: COMPLETED: SHEET No: JY ET 17/11/2015 Page: 1 of 1

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] FIELD DESCRIPTION FIELD TESTING SAMPLING WATER FILL 0.00 Road plannings over gravel to cobble sized brick/concrete rubble fill with dark brown silty sand matrix. (MADE GROUND) 0.20 - 0.20 D

0.50 - 0.50 D 0.60 Grey/dark grey speckled silty CLAY with occasional fine gravel. 0.60 - 0.60 D Slight organic odour. (SUBSOIL) 0.75 H = 1.3 kg/cm2 firm

1.00 H = 1.4 kg/cm2 1.00 - 1.00 D firm 1.10 Dark grey-orange brown silty gravelly CLAY. gravels comprise fine to coarse subrounded flints (HEAD DEPOSITS)

1.50 - 1.50 D 1.60 Brown CLAY occasionally orange/brown fine sandy silt pockets with occasional weak gravel sized mudstone fragments. (LONDON 1.75 H = 1.1 kg/cm2 CLAY FORMATION) firm

2.00 H = 2.0 kg/cm2 2.00 - 2.00 D stiff

2.25 H = 1.8 kg/cm2 stiff

... becoming thinly laminated from 2.50m 2.50 H = 1.8 kg/cm2 2.50 - 2.50 D stiff

2.75 H = 2.2 kg/cm2 stiff

3.00 3.00 H = 2.1 kg/cm2 3.00 - 3.00 D stiff

Borehole complete at 3.00m

REMARKS TITLE: REFERENCE: POSITION: Stability: No instability encountered Window Sampler Log LS 1940 WS3 Groundwater: No groundwater encountered. PROJECT: ELEVATION: CO-ORDINATES: Crown Lodge Barn, Crown Hill, EN9 3TF N/A Not to scale Chiselling: Not applicable CLIENT: METHOD: Casing/dia: Not applicable Harvey Construction Archway "Dart" Windowless Backfilling: Position backfilled with arisings DRILLED BY: LOGGED BY: STARTED: SCALE: AA ET 17/11/2015 Not to scale Notes: Hand excavated to 1.00mbgl INPUTTED BY: CHECKED BY: COMPLETED: SHEET No: JY ET 17/11/2015 Page: 1 of 1

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] FIELD DESCRIPTION FIELD TESTING SAMPLING WATER FILL 0.00 Road plannings over gravel to cobble sized brick/concrete rubble fill with dark brown silty sand matrix. (MADE GROUND) 0.20 - 0.20 D

0.40 Light bown/ orange-brown/ grey brown mottled silty fine sandy 0.50 H = 1.9 kg/cm2 0.50 - 0.50 D CLAY with occasional gravel sized flints, carbonaceous flecks, and stiff rare rootlets (SUBSOIL).

0.75 H = 0.6 kg/cm2 soft

... becoming wet at 1.00m 1.00 H = 0.6 kg/cm2 1.00 - 1.00 D soft 1.10 Dark grey-orange brown silty gravelly CLAY gravels comprise fine to coarse subrounded flints (HEAD DEPOSITS).

1.50 - 1.50 D

1.80 Brown CLAY occasionally orange/brown fine sandy silt pockets 1.90 with occasional weak gravel sized mudstone fragments. (LONDON CLAY FORMATION) 2.00 H = 1.7 kg/cm2 2.00 - 2.00 D stiff

2.25 H = 1.7 kg/cm2 stiff

2.50 H = 1.6 kg/cm2 2.50 - 2.50 D stiff

2.75 H = 2.2 kg/cm2 ... becoming thinly laminated from 2.80m stiff

3.00 3.00 H = 2.2 kg/cm2 3.00 - 3.00 D stiff

Borehole complete at 3.00m

REMARKS TITLE: REFERENCE: POSITION: Stability: No instability encountered Window Sampler Log LS 1940 WS4 Groundwater: Seepage from 1.00m, Standing 1.90m after PROJECT: ELEVATION: CO-ORDINATES: 20 minutes Crown Lodge Barn, Crown Hill, EN9 3TF N/A Not to scale Chiselling: Not applicable CLIENT: METHOD: Casing/dia: Not applicable Harvey Construction Archway "Dart" Windowless Backfilling: Position backfilled with arisings DRILLED BY: LOGGED BY: STARTED: SCALE: AA ET 17/11/2015 Not to scale Notes: Hand excavated to 1.00mbgl INPUTTED BY: CHECKED BY: COMPLETED: SHEET No: JY ET 17/11/2015 Page: 1 of 1

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] FE1 FE2

50mm

Brick

Black 70mm pipe/cable 100mm 550mm

(no CAT 700mm

trace) 110mm 500mm

Weak 450mm Concrete 20mm

TITLE: REF: PREPARED: Foundation Exposures LS 1940 JH

PROJECT: VERSION: CHECKED: Crown Lodge Barn, Crown Hill, Upshire, EN9 3TF v1 ET

CLIENT: FIGURE: DATE: Harvey Developments N/A 08/12/2015

CARLTON HOUSE, 28-29 CARLTON TERRACE, PORTSLADE, BRIGHTON, BN41 1UR TEL: 0845 604 6494 FAX: 01273 423 216 EMAIL: [email protected]

APPENDIX C

SUMMARY OF MOISTURE CONTENT AND ATTERBERG LIMIT DETERMINATIONS

Site Name: Crown hill Samples Received: 18.11.2015 Reference: LS1940 Reported: 03.12.2015

Moisture Liquid Plastic Plasticity Passing Position Depth Sample Description Content Limit Limit Index 425µm m % % % % %

WS1 0.50 brown clay 25 55 20 36 94%

WS1 1.00 brown clay 18

WS1 1.50 brown clay 30

WS1 2.00 brown clay 30

WS1 2.50 brown clay 34

WS1 3.00 brown clay 34

WS1 3.50 brown clay 33

WS1 4.00 brown clay 32

WS1 4.50 brown clay with selenite 32

WS1 5.00 brown clay 34

WS2 0.50 brown clay 24

WS2 1.00 brown clay 33

WS2 1.50 rare gravel in brown clay 31 74 25 49 93%

WS2 2.00 brown clay 32

WS2 2.50 brown clay 34

WS2 3.00 brown clay 34

BS 1377 : Part 2 : Clause 4.4 : 1990 Determination of the liquid limit by the cone penetrometer method Prepared: BS 1377 : Part 2 : Clause 5 : 1990 Determination of the plastic limit and plasticity index D Yeomans BS 1377 : Part 2 : Clause 3.2 : 1990 Determination of the moisture content by the oven-drying method. Checked: Test Results relate only to the sample numbers shown above. E Toms THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE t: 0845 604 6494 e: [email protected] SUMMARY OF MOISTURE CONTENT AND ATTERBERG LIMIT DETERMINATIONS

Site Name: Crown hill Samples Received: 18.11.2015 Reference: LS1940 Reported: 03.12.2015

Moisture Liquid Plastic Plasticity Passing Position Depth Sample Description Content Limit Limit Index 425µm m % % % % %

WS3 1.50 sl. Gravelly brown clay 30 77 26 51 88%

WS3 2.00 brown clay 31

WS3 2.50 brown clay 34

WS3 3.00 brown clay 32

WS4 0.50 brown clay 27 45 21 25 90%

WS4 1.00 brown clay 28

WS4 1.50 sandy gravelly clay 12 np 28%

WS4 2.00 brown clay 28

WS4 2.50 brown clay 33

WS4 3.00 brown clay 33

BS 1377 : Part 2 : Clause 4.4 : 1990 Determination of the liquid limit by the cone penetrometer method Prepared: BS 1377 : Part 2 : Clause 5 : 1990 Determination of the plastic limit and plasticity index D Yeomans BS 1377 : Part 2 : Clause 3.2 : 1990 Determination of the moisture content by the oven-drying method. Checked: Test Results relate only to the sample numbers shown above. E Toms THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE t: 0845 604 6494 e: [email protected]

APPENDIX D

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 1 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508855 508856 508857 508858 508859 Sample Reference WS1 WS1 WS2 WS2 WS3 Sample Number D1 D5 D1 D5 D2 Depth (m) 0.20 2.00 0.20 2.00 0.50 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

Stone Content % 0.1 NONE < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 Moisture Content % N/A NONE 39 21 18 22 21 Total mass of sample received kg 0.001 NONE 1.0 0.46 1.4 0.40 0.40

General Inorganics pH pH Units N/A MCERTS 7.0 8.2 6.7 7.9 7.7 Total Cyanide mg/kg 1 MCERTS < 1 - < 1 - 2 Water Soluble Sulphate (2:1 Leachate Equivalent) g/l 0.00125 MCERTS 0.022 0.062 0.029 0.59 0.074 Sulphide mg/kg 1 MCERTS < 1.0 - < 1.0 - 9.5 Fraction Organic Carbon (FOC) N/A 0.00001 NONE 0.019 - 0.016 - 0.018 Total Organic Carbon (TOC) % 0.1 MCERTS ----- Loss on Ignition @ 450 oC % 0.2 MCERTS ----- Acid Neutralisation Capacity +/- mol/kg -100 NONE -----

Total Phenols Total Phenols (monohydric) mg/kg 1 MCERTS < 1.0 - < 1.0 - < 1.0

Speciated PAHs Naphthalene mg/kg 0.05 MCERTS 1.1 - 0.57 - < 0.05 Acenaphthylene mg/kg 0.1 MCERTS < 0.10 - < 0.10 - < 0.10 Acenaphthene mg/kg 0.1 MCERTS < 0.10 - < 0.10 - < 0.10 Fluorene mg/kg 0.1 MCERTS < 0.10 - < 0.10 - < 0.10 Phenanthrene mg/kg 0.1 MCERTS 1.3 - 0.35 - < 0.10 Anthracene mg/kg 0.1 MCERTS 0.39 - 0.10 - < 0.10 Fluoranthene mg/kg 0.1 MCERTS 2.5 - 1.3 - < 0.10 Pyrene mg/kg 0.1 MCERTS 2.0 - 1.1 - < 0.10 Benzo(a)anthracene mg/kg 0.1 MCERTS 1.2 - 0.69 - < 0.10 Chrysene mg/kg 0.05 MCERTS 1.1 - 0.78 - < 0.05 Benzo(b)fluoranthene mg/kg 0.1 MCERTS 1.3 - 0.74 - < 0.10 Benzo(k)fluoranthene mg/kg 0.1 MCERTS 0.60 - 0.77 - < 0.10 Benzo(a)pyrene mg/kg 0.1 MCERTS 0.98 - 0.77 - < 0.10 Indeno(1,2,3-cd)pyrene mg/kg 0.1 MCERTS 0.55 - 0.53 - < 0.10 Dibenz(a,h)anthracene mg/kg 0.1 MCERTS < 0.10 - 0.12 - < 0.10 Benzo(ghi)perylene mg/kg 0.05 MCERTS 0.69 - 0.59 - < 0.05 Coronene mg/kg 0.05 NONE < 0.05 - < 0.05 - < 0.05

Total PAH Total WAC-17 PAHs mg/kg 1.6 NONE 14 - 8.4 - < 1.6

Heavy Metals / Metalloids Arsenic (aqua regia extractable) mg/kg 1 MCERTS 9.1 - 6.8 - 24 Barium (aqua regia extractable) mg/kg 1 MCERTS 140 - 170 - 210 Beryllium (aqua regia extractable) mg/kg 0.06 MCERTS 0.8 - 0.9 - 0.8 Boron (water soluble) mg/kg 0.2 MCERTS 2.0 - 2.2 - 2.8 Cadmium (aqua regia extractable) mg/kg 0.2 MCERTS < 0.2 - < 0.2 - 0.4 Chromium (aqua regia extractable) mg/kg 1 MCERTS 24 - 24 - 26 Copper (aqua regia extractable) mg/kg 1 MCERTS 30 - 32 - 74 Lead (aqua regia extractable) mg/kg 1 MCERTS 440 - 470 - 260 Mercury (aqua regia extractable) mg/kg 0.3 MCERTS < 0.3 - 1.8 - < 0.3 Nickel (aqua regia extractable) mg/kg 1 MCERTS 17 - 17 - 21 Selenium (aqua regia extractable) mg/kg 1 MCERTS < 1.0 - < 1.0 - < 1.0 Vanadium (aqua regia extractable) mg/kg 1 MCERTS 41 - 41 - 38 Zinc (aqua regia extractable) mg/kg 1 MCERTS 190 - 190 - 350

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 2 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508855 508856 508857 508858 508859 Sample Reference WS1 WS1 WS2 WS2 WS3 Sample Number D1 D5 D1 D5 D2 Depth (m) 0.20 2.00 0.20 2.00 0.50 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

Monoaromatics Benzene µg/kg 1 MCERTS ----- Toluene µg/kg 1 MCERTS ----- Ethylbenzene µg/kg 1 MCERTS ----- p & m-xylene µg/kg 1 MCERTS ----- o-xylene µg/kg 1 MCERTS ----- MTBE (Methyl Tertiary Butyl Ether) µg/kg 1 MCERTS -----

Total BTEX µg/kg 10 MCERTS -----

Petroleum Hydrocarbons Mineral Oil (C10 - C40) mg/kg 10 NONE -----

TPH6 - Aliphatic (C6 - C8) mg/kg 0.1 NONE - ---- TPH6 - Aliphatic (C8 - C10) mg/kg 0.1 NONE ----- TPH6 - Aliphatic (C10 - C12) mg/kg 1 NONE ----- TPH6 - Aliphatic (C12 - C16) mg/kg 2 NONE - ---- TPH6 - Aliphatic (C16 - C21) mg/kg 8 NONE - ---- TPH6 - Aliphatic (C21 - C35) mg/kg 8 NONE - ---- TPH6 - Aliphatic (C6 - C35) mg/kg 10 NONE - - - - -

TPH6 - Aromatic (C6 - C8) mg/kg 0.1 NONE - ---- TPH6 - Aromatic (C8 - C10) mg/kg 0.1 NONE ----- TPH6 - Aromatic (C10 - C12) mg/kg 1 NONE ----- TPH6 - Aromatic (C12 - C16) mg/kg 2 NONE ----- TPH6 - Aromatic (C16 - C21) mg/kg 10 NONE ----- TPH6 - Aromatic (C21 - C35) mg/kg 10 NONE ----- TPH6 - Aromatic (C6 - C35) mg/kg 10 NONE - - - - -

TPH-CWG - Aliphatic >EC5 - EC6 mg/kg 0.1 MCERTS ----- TPH-CWG - Aliphatic >EC6 - EC8 mg/kg 0.1 MCERTS ----- TPH-CWG - Aliphatic >EC8 - EC10 mg/kg 0.1 MCERTS ----- TPH-CWG - Aliphatic >EC10 - EC12 mg/kg 1 MCERTS ----- TPH-CWG - Aliphatic >EC12 - EC16 mg/kg 2 MCERTS ----- TPH-CWG - Aliphatic >EC16 - EC21 mg/kg 8 MCERTS ----- TPH-CWG - Aliphatic >EC21 - EC35 mg/kg 8 MCERTS ----- TPH-CWG - Aliphatic (EC5 - EC35) mg/kg 10 MCERTS - - - - -

TPH-CWG - Aromatic >EC5 - EC7 mg/kg 0.1 MCERTS ----- TPH-CWG - Aromatic >EC7 - EC8 mg/kg 0.1 MCERTS ----- TPH-CWG - Aromatic >EC8 - EC10 mg/kg 0.1 MCERTS ----- TPH-CWG - Aromatic >EC10 - EC12 mg/kg 1 MCERTS ----- TPH-CWG - Aromatic >EC12 - EC16 mg/kg 2 MCERTS ----- TPH-CWG - Aromatic >EC16 - EC21 mg/kg 10 MCERTS ----- TPH-CWG - Aromatic >EC21 - EC35 mg/kg 10 MCERTS ----- TPH-CWG - Aromatic (EC5 - EC35) mg/kg 10 MCERTS - - - - -

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 3 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508855 508856 508857 508858 508859 Sample Reference WS1 WS1 WS2 WS2 WS3 Sample Number D1 D5 D1 D5 D2 Depth (m) 0.20 2.00 0.20 2.00 0.50 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

PCBs by GC-MS PCB Congener 28 mg/kg 0.001 MCERTS - ---- PCB Congener 52 mg/kg 0.001 MCERTS - ---- PCB Congener 101 mg/kg 0.001 MCERTS ----- PCB Congener 118 mg/kg 0.001 MCERTS ----- PCB Congener 138 mg/kg 0.001 MCERTS ----- PCB Congener 153 mg/kg 0.001 MCERTS ----- PCB Congener 180 mg/kg 0.001 MCERTS - - - - -

Total PCBs by GC-MS Total PCBs mg/kg 0.007 MCERTS -----

Pesticides/Herbicides Screen Pesticides/Herbicides Screen in Soil P/A N/A NONE - - Absent - Absent

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 4 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508860 508861 508862 508863 508864 Sample Reference WS3 WS3 WS4 WS4 WS3 Sample Number D4 D6 D1 D5 D3 Depth (m) 1.00 2.00 0.20 2.00 0.60 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

Stone Content % 0.1 NONE < 0.1 < 0.1 < 0.1 < 0.1 < 0.1 Moisture Content % N/A NONE 13 21 12 20 20 Total mass of sample received kg 0.001 NONE 1.3 0.37 2.0 0.37 1.0

General Inorganics pH pH Units N/A MCERTS - 7.9 7.8 7.8 7.6 Total Cyanide mg/kg 1 MCERTS - - < 1 - - Water Soluble Sulphate (2:1 Leachate Equivalent) g/l 0.00125 MCERTS - 1.8 0.060 0.32 - Sulphide mg/kg 1 MCERTS - - 34 - - Fraction Organic Carbon (FOC) N/A 0.00001 NONE - - 0.029 - - Total Organic Carbon (TOC) % 0.1 MCERTS - - - - 1.1 Loss on Ignition @ 450oC % 0.2 MCERTS - - - - 4.4 Acid Neutralisation Capacity +/- mol/kg -100 NONE - - - - 3.6

Total Phenols Total Phenols (monohydric) mg/kg 1 MCERTS - - < 1.0 - -

Speciated PAHs Naphthalene mg/kg 0.05 MCERTS - - 1.2 - 0.85 Acenaphthylene mg/kg 0.1 MCERTS - - 0.75 - < 0.10 Acenaphthene mg/kg 0.1 MCERTS - - 0.34 - 0.22 Fluorene mg/kg 0.1 MCERTS - - 0.36 - 0.38 Phenanthrene mg/kg 0.1 MCERTS - - 4.4 - 1.4 Anthracene mg/kg 0.1 MCERTS - - 1.1 - 0.40 Fluoranthene mg/kg 0.1 MCERTS - - 9.9 - 1.2 Pyrene mg/kg 0.1 MCERTS - - 9.3 - 0.95 Benzo(a)anthracene mg/kg 0.1 MCERTS - - 5.9 - 0.55 Chrysene mg/kg 0.05 MCERTS - - 4.5 - 0.43 Benzo(b)fluoranthene mg/kg 0.1 MCERTS - - 6.1 - 0.53 Benzo(k)fluoranthene mg/kg 0.1 MCERTS - - 5.1 - 0.38 Benzo(a)pyrene mg/kg 0.1 MCERTS - - 6.0 - 0.49 Indeno(1,2,3-cd)pyrene mg/kg 0.1 MCERTS - - 4.2 - 0.32 Dibenz(a,h)anthracene mg/kg 0.1 MCERTS - - 0.96 - < 0.10 Benzo(ghi)perylene mg/kg 0.05 MCERTS - - 5.0 - 0.37 Coronene mg/kg 0.05 NONE - - < 0.05 - < 0.05

Total PAH Total WAC-17 PAHs mg/kg 1.6 NONE - - 65 - 8.4

Heavy Metals / Metalloids Arsenic (aqua regia extractable) mg/kg 1 MCERTS - - 25 - - Barium (aqua regia extractable) mg/kg 1 MCERTS - - 310 - - Beryllium (aqua regia extractable) mg/kg 0.06 MCERTS - - 1.5 - - Boron (water soluble) mg/kg 0.2 MCERTS - - 2.4 - - Cadmium (aqua regia extractable) mg/kg 0.2 MCERTS - - 2.9 - - Chromium (aqua regia extractable) mg/kg 1 MCERTS - - 31 - - Copper (aqua regia extractable) mg/kg 1 MCERTS - - 110 - - Lead (aqua regia extractable) mg/kg 1 MCERTS - - 750 - - Mercury (aqua regia extractable) mg/kg 0.3 MCERTS - - < 0.3 - - Nickel (aqua regia extractable) mg/kg 1 MCERTS - - 37 - - Selenium (aqua regia extractable) mg/kg 1 MCERTS - - < 1.0 - - Vanadium (aqua regia extractable) mg/kg 1 MCERTS - - 49 - - Zinc (aqua regia extractable) mg/kg 1 MCERTS - - 1800 - -

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 5 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508860 508861 508862 508863 508864 Sample Reference WS3 WS3 WS4 WS4 WS3 Sample Number D4 D6 D1 D5 D3 Depth (m) 1.00 2.00 0.20 2.00 0.60 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

StoneMonoaromatics Content 0.1 Benzene µg/kg 1 MCERTS < 1.0 - - - < 1.0 Toluene µg/kg 1 MCERTS < 1.0 - - - < 1.0 Ethylbenzene µg/kg 1 MCERTS < 1.0 - - - < 1.0 p & m-xylene µg/kg 1 MCERTS < 1.0 - - - < 1.0 o-xylene µg/kg 1 MCERTS < 1.0 - - - < 1.0 MTBE (Methyl Tertiary Butyl Ether) µg/kg 1 MCERTS < 1.0 - - - -

Total BTEX µg/kg 10 MCERTS - - - - < 10

Petroleum Hydrocarbons Mineral Oil (C10 - C40) mg/kg 10 NONE - - - - 86

TPH6 - Aliphatic (C6 - C8) mg/kg 0.1 NONE - - - - < 0.1 TPH6 - Aliphatic (C8 - C10) mg/kg 0.1 NONE - - - - < 0.1 TPH6 - Aliphatic (C10 - C12) mg/kg 1 NONE - - - - < 1.0 TPH6 - Aliphatic (C12 - C16) mg/kg 2 NONE - - - - < 2.0 TPH6 - Aliphatic (C16 - C21) mg/kg 8 NONE - - - - < 8.0 TPH6 - Aliphatic (C21 - C35) mg/kg 8 NONE - - - - < 8.0 TPH6 - Aliphatic (C6 - C35) mg/kg 10 NONE - - - - < 10

TPH6 - Aromatic (C6 - C8) mg/kg 0.1 NONE - - - - < 0.1 TPH6 - Aromatic (C8 - C10) mg/kg 0.1 NONE - - - - < 0.1 TPH6 - Aromatic (C10 - C12) mg/kg 1 NONE - - - - < 1.0 TPH6 - Aromatic (C12 - C16) mg/kg 2 NONE - - - - < 2.0 TPH6 - Aromatic (C16 - C21) mg/kg 10 NONE - - - - < 10 TPH6 - Aromatic (C21 - C35) mg/kg 10 NONE - - - - < 10 TPH6 - Aromatic (C6 - C35) mg/kg 10 NONE - - - - < 10

TPH-CWG - Aliphatic >EC5 - EC6 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aliphatic >EC6 - EC8 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aliphatic >EC8 - EC10 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aliphatic >EC10 - EC12 mg/kg 1 MCERTS < 1.0 - - - - TPH-CWG - Aliphatic >EC12 - EC16 mg/kg 2 MCERTS < 2.0 - - - - TPH-CWG - Aliphatic >EC16 - EC21 mg/kg 8 MCERTS < 8.0 - - - - TPH-CWG - Aliphatic >EC21 - EC35 mg/kg 8 MCERTS < 8.0 - - - - TPH-CWG - Aliphatic (EC5 - EC35) mg/kg 10 MCERTS < 10 - - - -

TPH-CWG - Aromatic >EC5 - EC7 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aromatic >EC7 - EC8 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aromatic >EC8 - EC10 mg/kg 0.1 MCERTS < 0.1 - - - - TPH-CWG - Aromatic >EC10 - EC12 mg/kg 1 MCERTS < 1.0 - - - - TPH-CWG - Aromatic >EC12 - EC16 mg/kg 2 MCERTS < 2.0 - - - - TPH-CWG - Aromatic >EC16 - EC21 mg/kg 10 MCERTS < 10 - - - - TPH-CWG - Aromatic >EC21 - EC35 mg/kg 10 MCERTS < 10 - - - - TPH-CWG - Aromatic (EC5 - EC35) mg/kg 10 MCERTS < 10 - - - -

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 6 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508860 508861 508862 508863 508864 Sample Reference WS3 WS3 WS4 WS4 WS3 Sample Number D4 D6 D1 D5 D3 Depth (m) 1.00 2.00 0.20 2.00 0.60 Date Sampled 16/11/2015 16/11/2015 16/11/2015 16/11/2015 16/11/2015 Time Taken None Supplied None Supplied None Supplied None Supplied None Supplied Accreditation Accreditation detection Limit of of Limit Status Analytical Parameter Units (Soil Analysis)

StonePCBs Contentby GC-MS 0.1 PCB Congener 28 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 52 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 101 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 118 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 138 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 153 mg/kg 0.001 MCERTS - - - - < 0.001 PCB Congener 180 mg/kg 0.001 MCERTS - - - - < 0.001

Total PCBs by GC-MS Total PCBs mg/kg 0.007 MCERTS - - - - < 0.007

Pesticides/Herbicides Screen Pesticides/Herbicides Screen in Soil P/A N/A NONE - - - - -

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 7 of 11 Analytical Report Number: 15-82915 Project / Site name: Crown Hill

Lab Sample Number 508865 Sample Reference WS3 Sample Number D3 Depth (m) 0.60 Date Sampled 16/11/2015 Time Taken None Supplied Accreditation detection Limit of of Limit Status Analytical Parameter Units (Leachate Analysis)

10:1 WAC Leachate Arsenic mg/l 0.0011 ISO 17025 0.0104 Barium mg/l 0.00005 ISO 17025 0.0188 Cadmium mg/l 0.00008 ISO 17025 < 0.0001 Chromium mg/l 0.0004 ISO 17025 0.0026 Copper mg/l 0.0007 ISO 17025 0.0054 Mercury mg/l 0.0005 ISO 17025 < 0.0005 Molybdenum mg/l 0.0004 ISO 17025 < 0.0004 Nickel mg/l 0.0003 ISO 17025 0.0045 Lead mg/l 0.001 ISO 17025 0.0090 Antimony mg/l 0.0017 ISO 17025 < 0.0017 Selenium mg/l 0.004 ISO 17025 < 0.0040 Zinc mg/l 0.0004 ISO 17025 0.0055 Chloride mg/l 0.15 ISO 17025 8.9 Fluoride mg/l 0.05 NONE 0.45 Sulphate mg/l 0.1 ISO 17025 18 Total dissolved solids mg/l 4 NONE 100 Total monohydric phenols mg/l 0.01 ISO 17025 < 0.010 Dissolved organic carbon mg/l 0.1 NONE 20.1

10:1 WAC Leachate Arsenic mg/kg 0.011 NONE 0.0741 Barium mg/kg 0.0005 NONE 0.134 Cadmium mg/kg 0.0008 NONE < 0.0008 Chromium mg/kg 0.004 NONE 0.019 Copper mg/kg 0.007 NONE 0.038 Mercury mg/kg 0.005 NONE < 0.0050 Molybdenum mg/kg 0.004 NONE < 0.0040 Nickel mg/kg 0.003 NONE 0.032 Lead mg/kg 0.01 NONE 0.064 Antimony mg/kg 0.017 NONE < 0.017 Selenium mg/kg 0.04 NONE < 0.040 Zinc mg/kg 0.004 NONE 0.039 Chloride mg/kg 1.5 NONE 63 Fluoride mg/kg 0.5 NONE 3.2 Sulphate mg/kg 1 NONE 120 Total dissolved solids mg/kg 40 NONE 710 Total monohydric phenols mg/kg 0.1 NONE < 0.10 Dissolved organic carbon mg/kg 1 NONE 143

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 8 of 11 Analytical Report Number : 15-82915 Project / Site name: Crown Hill

* These descriptions are only intended to act as a cross check if sample identities are questioned. The major constituent of the sample is intended to act with respect to MCERTS validation. The laboratory is accredited for sand, clay and loam (MCERTS) soil types. Data for unaccredited types of solid should be interpreted with care.

Stone content of a sample is calculated as the % weight of the stones not passing a 10 mm sieve. Results are not corrected for stone content.

Lab Sample Sample Sample Depth (m) Sample Description * Number Reference Number

508855 WS1 D1 0.20 Brown loam and sand with gravel. 508856 WS1 D5 2.00 Brown clay and sand. 508857 WS2 D1 0.20 Brown loam and sand with gravel and vegetation. 508858 WS2 D5 2.00 Brown clay and sand. 508859 WS3 D2 0.50 Brown loam and sand with gravel and brick. 508860 WS3 D4 1.00 Grey clay and sand. 508861 WS3 D6 2.00 Brown clay and sand. 508862 WS4 D1 0.20 Brown loam and sand with gravel. 508863 WS4 D5 2.00 Brown clay and sand. 508864 WS3 D3 0.60 Grey clay and sand.

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 9 of 11 Analytical Report Number : 15-82915 Project / Site name: Crown Hill Water matrix abbreviations: Surface Water (SW) Potable Water (PW) Ground Water (GW)

Method Wet / Dry Accreditation Analytical Test Name Analytical Method Description Analytical Method Reference number Analysis Status

Acid neutralisation capacity of soil Determination of acid neutralisation capacity by In-house method based on Guidance an L046-UK W NONE addition of acid or alkali followed by electronic Sampling and Testing of Wastes to Meet probe. Landfill Waste Acceptance""

Boron, water soluble, in soil Determination of water soluble boron in soil by hot In-house method based on Second Site L038-PL D MCERTS water extract followed by ICP-OES. Properties version 3

BTEX and MTBE in soil Determination of BTEX in soil by headspace GC- In-house method based on USEPA8260 L073S-PL W MCERTS MS.

Chloride 10:1 WAC Determination of Chloride colorimetrically by In house based on MEWAM Method ISBN L082-PL W ISO 17025 discrete analyser. 0117516260.

Dissolved organic carbon 10:1 WAC Determination of dissolved inorganic carbon in In-house method based on Examination of L037-PL W NONE leachate by TOC/DOC NDIR Analyser. Water and Wastewater 20th Edition: Clesceri, Greenberg & Eaton

Fluoride 10:1 WAC Determination of fluoride in leachate by 1:1ratio In-house method based on Use of Total L033-PL D NONE with a buffer solution followed by Ion Selective Ionic Strength Adjustment Buffer for Electrode. Electrode Determination"

Fraction of Organic Carbon in soil Determination of fraction of organic carbon in soil In-house method based on BS1377 Part 3, L023-PL D NONE by oxidising with potassium dichromate followed by 1990, Chemical and Electrochemical Tests titration with iron (II) sulphate.

Loss on ignition of soil @ 450oC Determination of loss on ignition in soil by In-house method based on BS1377 Part 3, L047-PL D MCERTS gravimetrically with the sample being ignited in a 1990, Chemical and Electrochemical Tests muffle furnace.

Metals in leachate by ICP-OES Determination of metals in leachate by acidification In-house method based on MEWAM 2006 L039-UK W ISO 17025 followed by ICP-OES. Methods for the Determination of Metals in Soil""

Metals in soil by ICP-OES Determination of metals in soil by aqua-regia In-house method based on MEWAM 2006 L038-PL D MCERTS digestion followed by ICP-OES. Methods for the Determination of Metals in Soil.

Mineral Oil (Soil) Determination of mineral oil fraction extractable in-house method L064/76-PL D NONE hydrocarbons in soil by GC-MS/GC-FID.

Moisture Content Moisture content, determined gravimetrically. In-house method based on BS1377 Part 3, L019-UK/PL W NONE 1990, Chemical and Electrochemical Tests

Monohydric phenols 10:1 WAC Determination of phenols in leachate by distillation In-house method based on Examination of L080-PL W ISO 17025 followed by colorimetry. Water and Wastewater 20th Edition: Clesceri, Greenberg & Eaton

Monohydric phenols in soil Determination of phenols in soil by extraction with In-house method based on Examination of L080-PL W MCERTS sodium hydroxide followed by distillation followed Water and Wastewater 20th Edition: by colorimetry. Clesceri, Greenberg & Eaton (skalar)

PCB's By GC-MS in soil Determination of PCB by extraction with acetone In-house method based on USEPA 8082 L027-PL D MCERTS and hexane followed by GC-MS.

Pesticides and Herbicides in soil In-house method In-house method W NONE screening

pH in soil (automated) Determination of pH in soil by addition of water In-house method based on BS1377 Part 3, L099-PL D MCERTS followed by electrometric measurement. 1990, Chemical and Electrochemical Tests

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 10 of 11 Analytical Report Number : 15-82915 Project / Site name: Crown Hill Water matrix abbreviations: Surface Water (SW) Potable Water (PW) Ground Water (GW)

Method Wet / Dry Accreditation Analytical Test Name Analytical Method Description Analytical Method Reference number Analysis Status

Speciated WAC-17 PAHs in soil Determination of PAH compounds in soil by In-house method based on USEPA 8270 L064-PL D NONE extraction in dichloromethane and hexane followed by GC-MS with the use of surrogate and internal standards. Stones content of soil Standard preparation for all samples unless In-house method based on British Standard L019-UK/PL D NONE otherwise detailed. Gravimetric determination of Methods and MCERTS requirements. stone > 10 mm as % dry weight.

Sulphate 10:1 WAC Determination of sulphate in leachate by ICP-OES In-house method based on MEWAM 1986 L039-PL W ISO 17025 Methods for the Determination of Metals in Soil""

Sulphate, water soluble, in soil Determination of water soluble sulphate by ICP- In-house method based on BS1377 Part 3, L038-PL D MCERTS OES. Results reported directly (leachate 1990, Chemical and Electrochemical Tests, equivalent) and corrected for extraction ratio (soil 2:1 water:soil extraction, analysis by ICP- equivalent). OES. Sulphide in soil Determination of sulphide in soil by acidification In-house method L010-PL D MCERTS and heating to liberate hydrogen sulphide, trapped in an alkaline solution then assayed by ion selective electrode. Total cyanide in soil Determination of total cyanide by distillation In-house method based on Examination of L080-PL W MCERTS followed by colorimetry. Water and Wastewater 20th Edition: Clesceri, Greenberg & Eaton (Skalar)

Total dissolved solids 10:1 WAC Determination of total dissolved solids in water by In-house method based on Examination of L004-PL W NONE electrometric measurement. Water and Wastewater 20th Edition: Clesceri, Greenberg & Eaton

Total organic carbon in soil Determination of organic matter in soil by oxidising In-house method based on BS1377 Part 3, L023-PL D MCERTS with potassium dichromate followed by titration 1990, Chemical and Electrochemical Tests with iron (II) sulphate.

TPH6 (Soil) Determination of TPH bands by GC-MS/GC-FID In-house method L064/076PL D NONE

TPHCWG (Soil) Determination of hexane extractable hydrocarbons In-house method L076-PL W MCERTS in soil by GC-MS/GC-FID.

For method numbers ending in 'UK' analysis have been carried out in our laboratory in the United Kingdom. For method numbers ending in 'PL' analysis have been carried out in our laboratory in Poland. Soil analytical results are expressed on a dry weight basis. Where analysis is carried out on as-received the results obtained are multiplied by a moisture correction factor that is determined gravimetrically using the moisture content which is carried out at a maximum of 30oC.

Iss No 15-82915-1 This certificate should not be reproduced, except in full, without the express permission of the laboratory. The results included within the report are representative of the samples submitted for analysis. Page 11 of 11

APPENDIX E

Historical Mapping Legends

Ordnance Survey County Series and Ordnance Survey Plan, Additional SIMs and Large-Scale National Grid Data 1:2,500 and Ordnance Survey Plan 1:2,500 Supply of Unpublished Survey Information 1:1,250 1:2,500 and 1:1,250 Historical Mapping & Photography included:

Mapping Type Scale Date Pg Essex 1:2,500 1870 2 Essex 1:2,500 1896 3 Essex 1:2,500 1920 4 Ordnance Survey Plan 1:2,500 1972 5 Ordnance Survey Plan 1:2,500 1985 6 Large-Scale National Grid Data 1:2,500 1992 7

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 1 of 7 Essex Published 1870 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 2 of 7 Essex Published 1896 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 3 of 7 Essex Published 1920 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 4 of 7 Ordnance Survey Plan Published 1972 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 5 of 7 Ordnance Survey Plan Published 1985 Source map scale - 1:2,500 The historical maps shown were reproduced from maps predominantly held at the scale adopted for England, Wales and Scotland in the 1840`s. In 1854 the 1:2,500 scale was adopted for mapping urban areas and by 1896 it covered the whole of what were considered to be the cultivated parts of Great Britain. The published date given below is often some years later than the surveyed date. Before 1938, all OS maps were based on the Cassini Projection, with independent surveys of a single county or group of counties, giving rise to significant inaccuracies in outlying areas.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 6 of 7 Large-Scale National Grid Data Published 1992 Source map scale - 1:2,500 'Large Scale National Grid Data' superseded SIM cards (Ordnance Survey's 'Survey of Information on Microfilm') in 1992, and continued to be produced until 1999. These maps were the fore-runners of digital mapping and so provide detailed information on houses and roads, but tend to show less topographic features such as vegetation. These maps were produced at both 1:2,500 and 1:1,250 scales.

Map Name(s) and Date(s)

Historical Map - Segment A13

Order Details Order Number: 75063644_1_1 Customer Ref: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 100 Site Details Crown Lodge Barn, Crown Hill, Waltham Abbey, Essex, EN9 3TF

Tel: 0844 844 9952 Fax: 0844 844 9951 Web: www.envirocheck.co.uk

A Landmark Information Group Service v47.0 16-Nov-2015 Page 7 of 7

APPENDIX F

Envirocheck ® Report: Datasheet

Order Details: Order Number: 75063997_1_1 Customer Reference: LS1940 National Grid Reference: 542480, 200500 Slice: A Site Area (Ha): 0.19 Search Buffer (m): 1000 Site Details: Crown Lodge Barn Crown Hill Waltham Abbey Essex EN9 3TF

Client Details: Mr E Toms Land Science Brighton Ltd The Old Police Station Jobs Lane Sayers Common West Sussex BN6 9HE

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Contents

Report Section Page Number

Summary -

Agency & Hydrological 1

Waste 8

Hazardous Substances -

Geological 9

Industrial Land Use 21

Sensitive Land Use 22

Data Currency 23

Data Suppliers 28

Useful Contacts 29

Introduction

The Environment Act 1995 has made site sensitivity a key issue, as the legislation pays as much attention to the pathways by which contamination could spread, and to the vulnerable targets of contamination, as it does the potential sources of contamination. For this reason, Landmark's Site Sensitivity maps and Datasheet(s) place great emphasis on statutory data provided by the Environment Agency/Natural Resources Wales and the Scottish Environment Protection Agency; it also incorporates data from Natural England (and the Scottish and Welsh equivalents) and Local Authorities; and highlights hydrogeological features required by environmental and geotechnical consultants. It does not include any information concerning past uses of land. The datasheet is produced by querying the Landmark database to a distance defined by the client from a site boundary provided by the client.

In the attached datasheet the National Grid References (NGRs) are rounded to the nearest 10m in accordance with Landmark's agreements with a number of Data Suppliers.

Copyright Notice

© Landmark Information Group Limited 2015. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property of Landmark Information Group Limited ("Landmark") and several other Data Providers, including (but not limited to) Ordnance Survey, British Geological Survey, the Environment Agency/Natural Resources Wales and Natural England, and must not be reproduced in whole or in part by photocopying or any other method. The Report is supplied under Landmark's Terms and Conditions accepted by the Customer. A copy of Landmark's Terms and Conditions can be found with the Index Map for this report. Additional copies of the Report may be obtained from Landmark, subject to Landmark's charges in force from time to time. The Copyright, design rights and any other intellectual rights shall remain the exclusive property of Landmark and /or other Data providers, whose Copyright material has been included in this Report.

Natural England Copyright Notice

Site of Special Scientific Interest, National Nature Reserve, Ramsar, Special Protection Area, Special Conservation Area, Marine Nature Reserve data (derived from Ordnance Survey 1:10000 raster) is provided by, and used with the permission of, Natural England who retain the copyright and Intellectual Property Rights for the data.

Ove Arup Copyright Notice

The Data provided in this report was obtained on Licence from Ove Arup & Partners Limited (for further information, contact [email protected]). No reproduction or further use of such Data is to be made without the prior written consent of Ove Arup & Partners Limited. The information and data supplied in the product are derived from publicly available records and other third party sources and neither Ove Arup & Partners nor Landmark warrant the accuracy or completeness of such information or data.

Peter Brett Associates Copyright Notice

The cavity data presented has been extracted from the PBA enhanced version of the original DEFRA national cavity databases. PBA/DEFRA retain the copyright & intellectual property rights in the data. Whilst all reasonable efforts are made to check that the information contained in the cavity databases is accurate we do not warrant that the data is complete or error free. The information is based upon our own researches and those collated from a number of external sources and is continually being augmented and updated by PBA. In no event shall PBA/DEFRA or Landmark be liable for any loss or damage including, without limitation, indirect or consequential loss or damage arising from the use of this data.

Radon Potential dataset Copyright Notice

Information supplied from a joint dataset compiled by The British Geological Survey and Public Health England.

Report Version v50.0

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Summary

Page 501 to 1000m On Site 0 to 250m 251 to 500m Data Type Number (*up to 2000m) Agency & Hydrological

Contaminated Land Register Entries and Notices

Discharge Consents pg 1 1 5

Enforcement and Prohibition Notices

Integrated Pollution Controls

Integrated Pollution Prevention And Control

Local Authority Integrated Pollution Prevention And Control

Local Authority Pollution Prevention and Controls pg 2 1

Local Authority Pollution Prevention and Control Enforcements

Nearest Surface Water Feature pg 2 Yes

Pollution Incidents to Controlled Waters pg 2 1 1

Prosecutions Relating to Authorised Processes

Prosecutions Relating to Controlled Waters

Registered Radioactive Substances

River Quality

River Quality Biology Sampling Points

River Quality Chemistry Sampling Points

Substantiated Pollution Incident Register

Water Abstractions pg 3 (*1)

Water Industry Act Referrals

Groundwater Vulnerability pg 3 Yes n/a n/a n/a

Bedrock Aquifer Designations pg 3 Yes n/a n/a n/a

Superficial Aquifer Designations pg 3 Yes n/a n/a n/a

Source Protection Zones

Extreme Flooding from Rivers or Sea without Defences pg 3 Yes n/a n/a

Flooding from Rivers or Sea without Defences pg 3 Yes n/a n/a

Areas Benefiting from Flood Defences n/a n/a

Flood Water Storage Areas n/a n/a

Flood Defences n/a n/a

Detailed River Network Lines pg 3 Yes Yes Yes n/a

Detailed River Network Offline Drainage pg 7 Yes n/a

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Summary

Page 501 to 1000m On Site 0 to 250m 251 to 500m Data Type Number (*up to 2000m) Waste

BGS Recorded Landfill Sites

Historical Landfill Sites

Integrated Pollution Control Registered Waste Sites

Licensed Waste Management Facilities (Landfill Boundaries)

Licensed Waste Management Facilities (Locations)

Local Authority Recorded Landfill Sites

Registered Landfill Sites

Registered Waste Transfer Sites

Registered Waste Treatment or Disposal Sites Hazardous Substances

Control of Major Accident Hazards Sites (COMAH)

Explosive Sites

Notification of Installations Handling Hazardous Substances (NIHHS)

Planning Hazardous Substance Consents

Planning Hazardous Substance Enforcements Geological

BGS 1:625,000 Solid Geology pg 9 Yes n/a n/a n/a

BGS Estimated Soil Chemistry pg 9 Yes Yes Yes Yes

BGS Recorded Mineral Sites

BGS Urban Soil Chemistry

BGS Urban Soil Chemistry Averages

Brine Compensation Area n/a n/a n/a

Coal Mining Affected Areas n/a n/a n/a

Mining Instability n/a n/a n/a

Man-Made Mining Cavities

Natural Cavities

Non Coal Mining Areas of Great Britain n/a n/a

Potential for Collapsible Ground Stability Hazards pg 19 Yes n/a n/a

Potential for Compressible Ground Stability Hazards n/a n/a

Potential for Ground Dissolution Stability Hazards n/a n/a

Potential for Landslide Ground Stability Hazards pg 19 Yes Yes n/a n/a

Potential for Running Sand Ground Stability Hazards pg 19 Yes n/a n/a

Potential for Shrinking or Swelling Clay Ground Stability Hazards pg 19 Yes n/a n/a

Radon Potential - Radon Affected Areas n/a n/a n/a

Radon Potential - Radon Protection Measures n/a n/a n/a

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Summary

Page 501 to 1000m On Site 0 to 250m 251 to 500m Data Type Number (*up to 2000m) Industrial Land Use

Contemporary Trade Directory Entries pg 21 5 1

Fuel Station Entries Sensitive Land Use

Areas of Adopted Green Belt pg 22 1

Areas of Unadopted Green Belt pg 22 1

Areas of Outstanding Natural Beauty

Environmentally Sensitive Areas

Forest Parks

Local Nature Reserves

Marine Nature Reserves

National Nature Reserves

National Parks

Nitrate Sensitive Areas

Nitrate Vulnerable Zones pg 22 1 1

Ramsar Sites

Sites of Special Scientific Interest pg 22 1

Special Areas of Conservation pg 22 1

Special Protection Areas

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Agency & Hydrological

Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Discharge Consents 1 Operator: Mr. P. Keen & Mr. D. Lake A18SW 448 2 542190 Property Type: Horticulture Est. Nursery Gardens (NW) 200870 Location: Crown Hill Nursery, Upshire, Waltham Abbey, Essex Authority: Environment Agency, Thames Region Catchment Area: Not Given Reference: CTLU.0637 Permit Version: 1 Effective Date: 7th November 1979 Issued Date: 7th November 1979 Revocation Date: Not Supplied Discharge Type: Sewage Discharges - Final/Treated Effluent - Not Water Company Discharge Land/Soakaway Environment: Receiving Water: Not Supplied Status: Transferred from Water Resources Act 1963 Positional Accuracy: Located by supplier to within 100m Discharge Consents 2 Operator: The Occupier A14SW 534 2 543040 Property Type: Domestic Property (Single) (E) 200450 Location: London Lodge ( West ), Crown Hill, Upshire, Essex Authority: Environment Agency, Thames Region Catchment Area: Not Given Reference: Ctlu.0550 Permit Version: 1 Effective Date: 26th May 1978 Issued Date: 26th May 1978 Revocation Date: 1st October 1996 Discharge Type: Sewage Discharges - Final/Treated Effluent - Not Water Company Discharge Land/Soakaway Environment: Receiving Water: Not Supplied Status: Lapsed (under Environment Act 1995, Schedule 23) Positional Accuracy: Located by supplier to within 100m Discharge Consents 3 Operator: Thames Water Utilities Ltd A18SW 554 2 542200 Property Type: Sewerage Network - Pumping Station - Water Company (NW) 201000 Location: Fernhall Lane, Upshirefernhall Laneupshire Authority: Environment Agency, Thames Region Catchment Area: Not Supplied Reference: Temp.0961 Permit Version: 2 Effective Date: 3rd September 2010 Issued Date: 3rd September 2010 Revocation Date: Not Supplied Discharge Type: Sewage Discharges - Pumping Station - Water Company Discharge Freshwater Stream/River Environment: Receiving Water: Copped Hall Brook Status: Varied under EPR 2010 Positional Accuracy: Located by supplier to within 100m Discharge Consents 3 Operator: Thames Water Utilities Ltd A18SW 554 2 542200 Property Type: Sewerage Network - Pumping Station - Water Company (NW) 201000 Location: Fernhall Lane, Upshirefernhall Laneupshire Authority: Environment Agency, Thames Region Catchment Area: Not Supplied Reference: Temp.0961 Permit Version: 1 Effective Date: 2nd November 1989 Issued Date: 2nd November 1989 Revocation Date: 2nd September 2010 Discharge Type: Sewage Discharges - Pumping Station - Water Company Discharge Freshwater Stream/River Environment: Receiving Water: Copped Hall Brook Status: Temporary Consents (Water Act 1989, Section 113) Positional Accuracy: Located by supplier to within 100m

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 1 of 29 Agency & Hydrological

Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Discharge Consents 4 Operator: Corporation Of London A7NE 652 2 541900 Property Type: Domestic Property (Single) (SW) 200140 Location: Coach House, Woodredon Farm Lane, Waltham Abbey, Hertfordshire Authority: Environment Agency, Thames Region Catchment Area: Not Given Reference: CNTM.1819 Permit Version: 1 Effective Date: 28th April 1995 Issued Date: 28th April 1995 Revocation Date: Not Supplied Discharge Type: Sewage Discharges - Final/Treated Effluent - Not Water Company Discharge Irrigation Area Environment: Receiving Water: London Clay Status: New Consent, by Application (Water Resources Act 1991, Section 88) Positional Accuracy: Located by supplier to within 100m Discharge Consents 5 Operator: Southwark Park Nursing Home Limited A7NE 729 2 541860 Property Type: Undefined Or Other (SW) 200060 Location: Upshire Residential Home Woodredon House Woodredon Farm Lane Upshire Essex En9 3sx Authority: Environment Agency, Thames Region Catchment Area: Lee-Stort / Thames Reference: Canm.0424 Permit Version: 1 Effective Date: 15th July 2002 Issued Date: 15th July 2002 Revocation Date: Not Supplied Discharge Type: Sewage Discharges - Final/Treated Effluent - Not Water Company Discharge Onto Land Environment: Receiving Water: Ditch Trib Of Cobbins Brook Status: New Consent (Water Resources Act 1991, Section 88 & Schedule 10 as amended by Environment Act 1995) Positional Accuracy: Located by supplier to within 10m Local Authority Pollution Prevention and Controls 6 Name: Broxbourne Mot & Motorist Centre A18SW 478 3 542163 Location: Unit 1 Bridge Works, Nazeing New Road, Broxbourne, En10 6sg (NW) 200887 Authority: Epping Forest District Council, Environmental Health Department Permit Reference: WK/200800691 Dated: Not Supplied Process Type: Local Authority Pollution Prevention and Control Description: PG1/1Waste oil burners, less than 0.4MW net rated thermal input Status: Application Not Yet Authorised Positional Accuracy: Located by supplier to within 10m Nearest Surface Water Feature A13SE 0 - 542495 (SE) 200474 Pollution Incidents to Controlled Waters 7 Property Type: Not Given A13NW 200 2 542400 Location: UPSHIRE (N) 200700 Authority: Environment Agency, Thames Region Pollutant: Agricultural: General Note: Confirmed As A Pollution Incident Incident Date: 17th February 1989 Incident Reference: NE890079 Catchment Area: Not Given Receiving Water: Not Given Cause of Incident: Not Given Incident Severity: Category 3 - Minor Incident Positional Accuracy: Located by supplier to within 100m Pollution Incidents to Controlled Waters 8 Property Type: Not Given A18SW 554 2 542200 Location: UPSHIRE (NW) 201000 Authority: Environment Agency, Thames Region Pollutant: Storm Sewage Note: Confirmed incident Incident Date: 21st January 1999 Incident Reference: THNE1999041748 Catchment Area: Not Given Receiving Water: Not Given Cause of Incident: Not Given Incident Severity: Category 3 - Minor Incident Positional Accuracy: Located by supplier to within 10m

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 2 of 29 Agency & Hydrological

Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Water Abstractions Operator: J F Orman A11SW 1581 2 540900 Licence Number: 29/38/08/0228 (W) 200200 Permit Version: Not Supplied Location: Southend Farm, WALTHAM ABBEY Authority: Environment Agency, Thames Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: River Daily Rate (m3): 500 Yearly Rate (m3): 20457 Details: Status: Revoked; Lapsed Or Cancelled Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 100m Groundwater Vulnerability Soil Classification: Not classified A13NE 0 2 542483 Map Sheet: Sheet 40 Thames Estuary (E) 200498 Scale: 1:100,000 Drift Deposits None Bedrock Aquifer Designations Aquifer Designation: Unproductive Strata A13NE 0 4 542483 (E) 200498 Superficial Aquifer Designations Aquifer Designation: Secondary Aquifer - Undifferentiated A13NE 0 4 542483 (E) 200498 Extreme Flooding from Rivers or Sea without Defences Type: Extent of Extreme Flooding from Rivers or Sea without Defences A13NW 177 2 542426 Flood Plain Type: Fluvial Models (N) 200685 Boundary Accuracy: As Supplied Extreme Flooding from Rivers or Sea without Defences Type: Extent of Extreme Flooding from Rivers or Sea without Defences A13NW 214 2 542452 Flood Plain Type: Fluvial Models (N) 200734 Boundary Accuracy: As Supplied Flooding from Rivers or Sea without Defences Type: Extent of Flooding from Rivers or Sea without Defences A13NW 177 2 542426 Flood Plain Type: Fluvial Models (N) 200685 Boundary Accuracy: As Supplied Flooding from Rivers or Sea without Defences Type: Extent of Flooding from Rivers or Sea without Defences A13NW 214 2 542452 Flood Plain Type: Fluvial Models (N) 200734 Boundary Accuracy: As Supplied Areas Benefiting from Flood Defences None Flood Water Storage Areas None Flood Defences None Detailed River Network Lines 9 River Type: Tertiary River A13SE 0 2 542502 River Name: Not Supplied (E) 200491 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference:

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 3 of 29 Agency & Hydrological

Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Detailed River Network Lines 10 River Type: Tertiary River A13NE 28 2 542508 River Name: Not Supplied (NE) 200554 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 11 River Type: Primary River A13NE 54 2 542513 River Name: Not Supplied (N) 200580 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 12 River Type: Tertiary River A13NE 58 2 542511 River Name: Not Supplied (N) 200584 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 13 River Type: Tertiary River A13NE 73 2 542494 River Name: Not Supplied (N) 200598 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 14 River Type: Tertiary River A13NE 73 2 542494 River Name: Not Supplied (N) 200598 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 15 River Type: Extended Culvert (greater than 50m) A13NW 93 2 542479 River Name: Not Supplied (N) 200616 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Below Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference:

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 4 of 29 Agency & Hydrological

Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Detailed River Network Lines 16 River Type: Primary River A13NW 176 2 542427 River Name: Not Supplied (N) 200684 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 17 River Type: Tertiary River A13NW 221 2 542459 River Name: Not Supplied (N) 200743 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 18 River Type: Tertiary River A13NE 299 2 542651 River Name: Drain (NE) 200788 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Drain (ditch, Reen, Rhyne, Drain) Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 19 River Type: Tertiary River A13NW 302 2 542300 River Name: Not Supplied (NW) 200768 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 20 River Type: Tertiary River A13SW 310 2 542381 River Name: Not Supplied (S) 200178 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 21 River Type: Tertiary River A13SW 313 2 542375 River Name: Not Supplied (S) 200177 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Detailed River Network Lines 22 River Type: Secondary River A13NW 318 2 542388 River Name: Not Supplied (N) 200822 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 23 River Type: Tertiary River A13NW 326 2 542361 River Name: Drain (N) 200820 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Drain (ditch, Reen, Rhyne, Drain) Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 24 River Type: Primary River A13NW 357 2 542298 River Name: Not Supplied (NW) 200828 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Flood Risk Management Indicative/Statutory Main River Management Status: Water Course Copped Hall Brook Name: Water Course 53CP Reference: Detailed River Network Lines 25 River Type: Extended Culvert (greater than 50m) A8NE 380 2 542660 River Name: Not Supplied (SE) 200127 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Below Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 26 River Type: Tertiary River A8NE 380 2 542660 River Name: Not Supplied (SE) 200127 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Lines 27 River Type: Tertiary River A8NE 403 2 542571 River Name: Not Supplied (S) 200073 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Detailed River Network Lines 28 River Type: Tertiary River A8NE 409 2 542557 River Name: Not Supplied (S) 200064 Hydrographic Area: D006 River Flow Type: Primary Flow Path River Surface Level: Surface Drain Feature: Not a Drain Flood Risk Other Rivers Management Status: Water Course Not Supplied Name: Water Course Not Supplied Reference: Detailed River Network Offline Drainage 29 River Type: Tertiary River A13NW 165 2 542356 Hydrographic Area: D006 (NW) 200640

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Local Authority Landfill Coverage Name: Epping Forest District Council 0 9 542483 - Has not been able to supply Landfill data 200498 Local Authority Landfill Coverage Name: Essex County Council 0 10 542483 - Has supplied landfill data 200498

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS 1:625,000 Solid Geology Description: Thames Group A13NE 0 4 542483 (E) 200498 BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A13NE 0 4 542483 Soil Sample Type: Rural Soil (E) 200498 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A13NW 18 4 542436 Soil Sample Type: Rural Soil (W) 200498 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A13SE 44 4 542538 Soil Sample Type: Rural Soil (SE) 200459 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A13SE 211 4 542712 Soil Sample Type: Rural Soil (E) 200451 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A13SW 307 4 542192 Soil Sample Type: Rural Soil (SW) 200323 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 330 4 542138 Soil Sample Type: Rural Soil (W) 200394 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 376 4 542127 Soil Sample Type: Rural Soil (SW) 200299 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 397 4 542058 Soil Sample Type: Rural Soil (W) 200481 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 404 4 542441 Soil Sample Type: Rural Soil (S) 200067 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A14SW 418 4 542927 Soil Sample Type: Rural Soil (E) 200490 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12NE 454 4 542000 Soil Sample Type: Rural Soil (W) 200498 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12NE 459 4 542000 Soil Sample Type: Rural Soil (W) 200578 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NE 468 4 542483 Soil Sample Type: Rural Soil (S) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NE 468 4 542512 Soil Sample Type: Rural Soil (S) 200000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 473 4 542419 Soil Sample Type: Rural Soil (S) 200000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A18SE 474 4 542483 Soil Sample Type: Rural Soil (N) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 479 4 542195 Soil Sample Type: Rural Soil (SW) 200078 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 479 4 542185 Soil Sample Type: Rural Soil (SW) 200086 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12NE 485 4 542000 Soil Sample Type: Rural Soil (W) 200679 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 489 4 542348 Soil Sample Type: Rural Soil (S) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NE 489 4 542558 Soil Sample Type: Rural Soil (S) 199983 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NE 490 4 542529 Soil Sample Type: Rural Soil (S) 199979 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A14NW 491 4 543000 Soil Sample Type: Rural Soil (E) 200498 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 494 4 542345 Soil Sample Type: Rural Soil (S) 199996 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 510 4 542284 Soil Sample Type: Rural Soil (S) 200000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A18SW 522 4 542280 Soil Sample Type: Rural Soil (N) 201000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A14SW 525 4 543000 Soil Sample Type: Rural Soil (E) 200324 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 526 4 542000 Soil Sample Type: Rural Soil (SW) 200218 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A14NW 537 4 543000 Soil Sample Type: Rural Soil (NE) 200736 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 542 4 542205 Soil Sample Type: Rural Soil (SW) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A18SW 543 4 542224 Soil Sample Type: Rural Soil (NW) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 552 4 541903 Soil Sample Type: Rural Soil (W) 200476 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 565 4 542158 Soil Sample Type: Rural Soil (SW) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 576 4 542833 Soil Sample Type: Rural Soil (NE) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A12SE 602 4 541853 Soil Sample Type: Rural Soil (W) 200466 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A8NW 637 4 542293 Soil Sample Type: Rural Soil (S) 199863 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A7NE 642 4 542000 Soil Sample Type: Rural Soil (SW) 200028 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A7NE 662 4 542000 Soil Sample Type: Rural Soil (SW) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 665 4 543052 Soil Sample Type: Rural Soil (NE) 200905 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SE 670 4 542000 Soil Sample Type: Rural Soil (NW) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SE 672 4 541997 Soil Sample Type: Rural Soil (NW) 201000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SE 675 4 542000 Soil Sample Type: Rural Soil (NW) 201007 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 30 - 45 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 682 4 543000 Soil Sample Type: Rural Soil (NE) 200996 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 684 4 543000 Soil Sample Type: Rural Soil (NE) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 685 4 543000 Soil Sample Type: Rural Soil (NE) 201000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A7NE 686 4 541966 Soil Sample Type: Rural Soil (SW) 200000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A9NW 691 4 543000 Soil Sample Type: Rural Soil (SE) 200000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 720 4 543000 Soil Sample Type: Rural Soil (NE) 201050 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration:

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BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A7NE 729 4 541939 Soil Sample Type: Rural Soil (SW) 199966 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19SW 748 4 542922 Soil Sample Type: Rural Soil (NE) 201147 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17NE 767 4 542095 Soil Sample Type: Rural Soil (NW) 201186 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17NE 820 4 541992 Soil Sample Type: Rural Soil (NW) 201185 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SE 822 4 541946 Soil Sample Type: Rural Soil (NW) 201154 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A7NE 850 4 541809 Soil Sample Type: Rural Soil (SW) 199929 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration:

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BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A9SW 859 4 542944 Soil Sample Type: Rural Soil (SE) 199738 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A9NE 876 4 543232 Soil Sample Type: Rural Soil (SE) 200000 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19NW 943 4 543000 Soil Sample Type: Rural Soil (NE) 201329 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A19NW 963 4 542906 Soil Sample Type: Rural Soil (NE) 201402 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SW 984 4 541601 Soil Sample Type: Rural Soil (NW) 200999 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A17SW 984 4 541601 Soil Sample Type: Rural Soil (NW) 201000 Arsenic 15 - 25 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 90 - 120 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel 15 - 30 mg/kg Concentration:

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A9SW 990 4 542872 Soil Sample Type: Rural Soil (S) 199553 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel <15 mg/kg Concentration: BGS Estimated Soil Chemistry Source: British Geological Survey, National Geoscience Information Service A9SW 1000 4 543000 Soil Sample Type: Rural Soil (SE) 199606 Arsenic <15 mg/kg Concentration: Cadmium <1.8 mg/kg Concentration: Chromium 60 - 90 mg/kg Concentration: Lead Concentration: <150 mg/kg Nickel <15 mg/kg Concentration: BGS Measured Urban Soil Chemistry No data available BGS Urban Soil Chemistry Averages No data available Coal Mining Affected Areas In an area that might not be affected by coal mining Non Coal Mining Areas of Great Britain No Hazard Potential for Collapsible Ground Stability Hazards Hazard Potential: Very Low A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Potential for Compressible Ground Stability Hazards Hazard Potential: No Hazard A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Potential for Ground Dissolution Stability Hazards Hazard Potential: No Hazard A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Potential for Landslide Ground Stability Hazards Hazard Potential: Very Low A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Potential for Landslide Ground Stability Hazards Hazard Potential: Low A13NE 177 4 542527 Source: British Geological Survey, National Geoscience Information Service (N) 200702 Potential for Landslide Ground Stability Hazards Hazard Potential: Low A13NE 180 4 542587 Source: British Geological Survey, National Geoscience Information Service (NE) 200686 Potential for Running Sand Ground Stability Hazards Hazard Potential: Very Low A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Potential for Running Sand Ground Stability Hazards Hazard Potential: No Hazard A13NW 18 4 542436 Source: British Geological Survey, National Geoscience Information Service (W) 200498 Potential for Running Sand Ground Stability Hazards Hazard Potential: No Hazard A13SE 44 4 542538 Source: British Geological Survey, National Geoscience Information Service (SE) 200459 Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: Moderate A13NE 0 4 542483 Source: British Geological Survey, National Geoscience Information Service (E) 200498 Radon Potential - Radon Protection Measures Protection Measure: No radon protective measures are necessary in the construction of new A13NE 0 4 542483 dwellings or extensions (E) 200498 Source: British Geological Survey, National Geoscience Information Service

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Radon Potential - Radon Affected Areas Affected Area: The property is in a lower probability radon area, as less than 1% of homes A13NE 0 4 542483 are above the action level (E) 200498 Source: British Geological Survey, National Geoscience Information Service

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Contemporary Trade Directory Entries 30 Name: Refrigeration & Construction A13NE 80 - 542574 Location: 19 Crown Hill, Waltham Abbey, Essex, EN9 3TF (NE) 200568 Classification: Refrigeration Equipment - Commercial Status: Inactive Positional Accuracy: Manually positioned to the road within the address or location Contemporary Trade Directory Entries 31 Name: Joinery Solutions A13SE 138 - 542640 Location: Crown Hill Farm, Crown Hill, Waltham Abbey, Essex, EN9 3TF (E) 200466 Classification: Joinery Manufacturers Status: Active Positional Accuracy: Automatically positioned to the address Contemporary Trade Directory Entries 31 Name: The Till Exchange A13SE 138 - 542640 Location: Crown Hill, Waltham Abbey, Essex, EN9 3TF (E) 200466 Classification: Cash Registers & Check-Out Equipment Status: Inactive Positional Accuracy: Automatically positioned to the address Contemporary Trade Directory Entries 32 Name: Jd Bodyworks A13NE 183 - 542692 Location: Crown Hill Storage,Crown Hill, Waltham Abbey, Essex, EN9 3TF (E) 200507 Classification: Garage Services Status: Inactive Positional Accuracy: Manually positioned within the geographical locality Contemporary Trade Directory Entries 32 Name: P & B Furnishings A13NE 197 - 542705 Location: Crown Hill, Waltham Abbey, Essex, EN9 3TF (E) 200530 Classification: Furniture - Repairing & Restoring Status: Inactive Positional Accuracy: Manually positioned to the road within the address or location Contemporary Trade Directory Entries 33 Name: Webb Bros A13NW 411 - 542189 Location: Copthall Green, Waltham Abbey, Essex, EN9 3TE (NW) 200822 Classification: Commercial Vehicle Breakdown & Recovery Services Status: Active Positional Accuracy: Manually positioned within the geographical locality

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Quadrant Estimated Map Reference Details Distance Contact NGR ID (Compass Direction) From Site

Areas of Adopted Green Belt 34 Authority: Epping Forest District Council, Planning Services A13NE 0 5 542483 Plan Name: Epping Forest District Local Plan (E) 200498 Status: Adopted Plan Date: 31st January 1998 Areas of Unadopted Green Belt 35 Authority: Epping Forest District Council, Planning Services A13NE 0 5 542483 Plan Name: Epping Forest District Local Plan (E) 200498 Status: Revised Deposit Plan Date: 31st July 2005 Nitrate Vulnerable Zones 36 Name: Not Supplied A13NE 0 6 542483 Description: Surface Water (E) 200498 Source: Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) Nitrate Vulnerable Zones 37 Name: Not Supplied A9SW 927 6 543155 Description: Surface Water (SE) 199821 Source: Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) Sites of Special Scientific Interest 38 Name: Epping Forest A13NE 181 7 542686 Multiple Areas: Y (E) 200549 Total Area (m2): 17902984.66 Source: Natural England Reference: 1001814 Designation Details: Site Of Special Scientific Interest Designation Date: 5th March 1990 Date Type: Notified Designation Details: Scheduled Ancient Monument Designation Date: 5th March 1990 Date Type: Notified Designation Details: Nature Conservation Review Designation Date: 5th March 1990 Date Type: Notified Designation Details: Special Area Of Conservation Designation Date: 5th March 1990 Date Type: Notified Special Areas of Conservation 39 Name: Epping Forest A13SE 277 7 542763 Multiple Areas: Y (E) 200401 Total Area (m2): 16307356.64 Source: Natural England Reference: UK0012720 Status: Designated

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Agency & Hydrological Version Update Cycle

Contaminated Land Register Entries and Notices Broxbourne Borough Council - Environmental Health Department February 2014 Annual Rolling Update Harlow District Council - Environmental Health Department January 2015 Annual Rolling Update Epping Forest District Council - Environmental Health Department October 2014 Annual Rolling Update London Borough of Enfield - Environmental Services September 2014 Annual Rolling Update Discharge Consents Environment Agency - Thames Region November 2015 Quarterly Enforcement and Prohibition Notices Environment Agency - Thames Region March 2013 As notified Integrated Pollution Controls Environment Agency - Thames Region October 2008 Not Applicable Integrated Pollution Prevention And Control Environment Agency - Thames Region October 2015 Quarterly Local Authority Integrated Pollution Prevention And Control Epping Forest District Council - Environmental Health Department April 2013 Annual Rolling Update London Borough of Enfield - Environmental Health Department January 2015 Annual Rolling Update Broxbourne Borough Council - Environmental Health Department March 2015 Annual Rolling Update Harlow District Council - Environmental Health Department November 2014 Annual Rolling Update Local Authority Pollution Prevention and Controls Epping Forest District Council - Environmental Health Department April 2013 Annual Rolling Update London Borough of Enfield - Environmental Health Department January 2015 Annual Rolling Update Broxbourne Borough Council - Environmental Health Department March 2015 Annual Rolling Update Harlow District Council - Environmental Health Department November 2014 Annual Rolling Update Local Authority Pollution Prevention and Control Enforcements Epping Forest District Council - Environmental Health Department April 2013 Annual Rolling Update London Borough of Enfield - Environmental Health Department January 2015 Annual Rolling Update Broxbourne Borough Council - Environmental Health Department March 2015 Annual Rolling Update Harlow District Council - Environmental Health Department November 2014 Annual Rolling Update Nearest Surface Water Feature Ordnance Survey July 2012 Quarterly Pollution Incidents to Controlled Waters Environment Agency - Thames Region September 1999 Not Applicable Prosecutions Relating to Authorised Processes Environment Agency - Thames Region March 2013 As notified Prosecutions Relating to Controlled Waters Environment Agency - Thames Region March 2013 As notified River Quality Environment Agency - Head Office November 2001 Not Applicable River Quality Biology Sampling Points Environment Agency - Head Office July 2012 Annually River Quality Chemistry Sampling Points Environment Agency - Head Office July 2012 Annually Substantiated Pollution Incident Register Environment Agency - Thames Region - North East Area October 2015 Quarterly Water Abstractions Environment Agency - Thames Region July 2015 Quarterly Water Industry Act Referrals Environment Agency - Thames Region October 2015 Quarterly Groundwater Vulnerability Environment Agency - Head Office April 2015 Not Applicable Drift Deposits Environment Agency - Head Office January 1999 Not Applicable

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Agency & Hydrological Version Update Cycle

Bedrock Aquifer Designations British Geological Survey - National Geoscience Information Service October 2012 As notified Superficial Aquifer Designations British Geological Survey - National Geoscience Information Service January 2015 As notified Source Protection Zones Environment Agency - Head Office October 2015 Quarterly Extreme Flooding from Rivers or Sea without Defences Environment Agency - Head Office August 2015 Quarterly Flooding from Rivers or Sea without Defences Environment Agency - Head Office August 2015 Quarterly Areas Benefiting from Flood Defences Environment Agency - Head Office August 2015 Quarterly Flood Water Storage Areas Environment Agency - Head Office August 2015 Quarterly Flood Defences Environment Agency - Head Office August 2015 Quarterly Detailed River Network Lines Environment Agency - Head Office March 2012 Annually Detailed River Network Offline Drainage Environment Agency - Head Office March 2012 Annually Surface Water 1 in 30 year Flood Extent Environment Agency - Head Office October 2013 As notified Surface Water 1 in 100 year Flood Extent Environment Agency - Head Office October 2013 As notified Surface Water 1 in 1000 year Flood Extent Environment Agency - Head Office October 2013 As notified Surface Water Suitability Environment Agency - Head Office October 2013 As notified

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Waste Version Update Cycle

BGS Recorded Landfill Sites British Geological Survey - National Geoscience Information Service June 1996 Not Applicable Historical Landfill Sites Environment Agency - Thames Region - North East Area May 2015 Quarterly Integrated Pollution Control Registered Waste Sites Environment Agency - Thames Region October 2008 Not Applicable Licensed Waste Management Facilities (Landfill Boundaries) Environment Agency - Thames Region - North East Area August 2014 Quarterly Licensed Waste Management Facilities (Locations) Environment Agency - Thames Region - North East Area October 2015 Quarterly Local Authority Landfill Coverage Broxbourne Borough Council May 2000 Not Applicable Epping Forest District Council May 2000 Not Applicable Essex County Council May 2000 Not Applicable Harlow District Council - Environmental Health Department May 2000 Not Applicable Hertfordshire County Council - Spatial Planning and Economy Unit May 2000 Not Applicable London Borough of Enfield - Environmental Health Department May 2000 Not Applicable Local Authority Recorded Landfill Sites London Borough of Enfield - Environmental Health Department February 2003 Not Applicable Broxbourne Borough Council May 2000 Not Applicable Epping Forest District Council May 2000 Not Applicable Harlow District Council - Environmental Health Department May 2000 Not Applicable Hertfordshire County Council - Spatial Planning and Economy Unit May 2000 Not Applicable Essex County Council November 2004 Not Applicable Registered Landfill Sites Environment Agency - Thames Region - North East Area March 2003 Not Applicable Registered Waste Transfer Sites Environment Agency - Thames Region - North East Area March 2003 Not Applicable Registered Waste Treatment or Disposal Sites Environment Agency - Thames Region - North East Area June 2015 Not Applicable

Hazardous Substances Version Update Cycle

Control of Major Accident Hazards Sites (COMAH) Health and Safety Executive June 2015 Bi-Annually Explosive Sites Health and Safety Executive June 2015 Bi-Annually Notification of Installations Handling Hazardous Substances (NIHHS) Health and Safety Executive November 2000 Not Applicable Planning Hazardous Substance Enforcements Epping Forest District Council - Planning Services December 2014 Annual Rolling Update Harlow District Council - Planning Services March 2014 Annual Rolling Update Broxbourne Borough Council October 2013 Annual Rolling Update Hertfordshire County Council - Spatial Planning and Economy Unit October 2014 Annual Rolling Update Essex County Council September 2014 Annual Rolling Update London Borough of Enfield - Planning Department September 2014 Annual Rolling Update Planning Hazardous Substance Consents Epping Forest District Council - Planning Services December 2014 Annual Rolling Update Harlow District Council - Planning Services March 2014 Annual Rolling Update Broxbourne Borough Council October 2013 Annual Rolling Update Hertfordshire County Council - Spatial Planning and Economy Unit October 2014 Annual Rolling Update Essex County Council September 2014 Annual Rolling Update London Borough of Enfield - Planning Department September 2014 Annual Rolling Update

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Geological Version Update Cycle

BGS 1:625,000 Solid Geology British Geological Survey - National Geoscience Information Service January 2009 Not Applicable BGS Estimated Soil Chemistry British Geological Survey - National Geoscience Information Service January 2010 Annually BGS Recorded Mineral Sites British Geological Survey - National Geoscience Information Service May 2015 Bi-Annually Brine Compensation Area Cheshire Brine Subsidence Compensation Board August 2011 Not Applicable Coal Mining Affected Areas The Coal Authority - Mining Report Service March 2014 As notified Mining Instability Ove Arup & Partners October 2000 Not Applicable Non Coal Mining Areas of Great Britain British Geological Survey - National Geoscience Information Service July 2014 Not Applicable Potential for Collapsible Ground Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Potential for Compressible Ground Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Potential for Ground Dissolution Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Potential for Landslide Ground Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Potential for Running Sand Ground Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Potential for Shrinking or Swelling Clay Ground Stability Hazards British Geological Survey - National Geoscience Information Service June 2015 Annually Radon Potential - Radon Affected Areas British Geological Survey - National Geoscience Information Service July 2011 As notified Radon Potential - Radon Protection Measures British Geological Survey - National Geoscience Information Service July 2011 As notified

Industrial Land Use Version Update Cycle

Contemporary Trade Directory Entries Thomson Directories August 2015 Quarterly Fuel Station Entries Catalist Ltd - Experian August 2015 Quarterly

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Sensitive Land Use Version Update Cycle

Areas of Adopted Green Belt Broxbourne Borough Council November 201 As notified Epping Forest District Council - Planning Services November 201 As notified Harlow District Council November 201 As notified London Borough of Enfield November 201 As notified Areas of Unadopted Green Belt Broxbourne Borough Council November 201 As notified Epping Forest District Council - Planning Services November 201 As notified Harlow District Council November 201 As notified London Borough of Enfield November 201 As notified Areas of Outstanding Natural Beauty Natural England October 2015 Bi-Annually Environmentally Sensitive Areas Natural England October 2015 Annually Forest Parks Forestry Commission April 1997 Not Applicable Local Nature Reserves Natural England October 2015 Bi-Annually Marine Nature Reserves Natural England October 2015 Bi-Annually National Nature Reserves Natural England October 2015 Bi-Annually National Parks Natural England August 2015 Bi-Annually Nitrate Sensitive Areas Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) October 2015 Not Applicable Nitrate Vulnerable Zones Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) October 2015 Annually Ramsar Sites Natural England October 2015 Bi-Annually Sites of Special Scientific Interest Natural England October 2015 Bi-Annually Special Areas of Conservation Natural England October 2015 Bi-Annually Special Protection Areas Natural England October 2015 Bi-Annually

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A selection of organisations who provide data within this report

Data Supplier Data Supplier Logo

Ordnance Survey

Environment Agency

Scottish Environment Protection Agency

The Coal Authority

British Geological Survey

Centre for Ecology and Hydrology

Natural Resources Wales

Scottish Natural Heritage

Natural England

Public Health England

Ove Arup

Peter Brett Associates

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 28 of 29 Useful Contacts

Contact Name and Address Contact Details

2 Environment Agency - National Customer Contact Telephone: 08708 506 506 Centre (NCCC) Email: [email protected] PO Box 544, Templeborough, Rotherham, S60 1BY

3 Epping Forest District Council - Environmental Health Telephone: 01992 564000 Department Fax: 01992 561016 Website: www.eppingforestdc.gov.uk Civic Offices, 323 High Street, Epping, Essex, CM16 4BZ

4 British Geological Survey - Enquiry Service Telephone: 0115 936 3143 Fax: 0115 936 3276 British Geological Survey, Kingsley Dunham Centre, Keyworth, Email: [email protected] Nottingham, Nottinghamshire, NG12 5GG Website: www.bgs.ac.uk

5 Epping Forest District Council - Planning Services Telephone: 01992 564000 Fax: 01992 564229 Civic Offices, 323 High Street, Epping, Essex, CM16 4BZ Website: www.eppingforestdc.gov.uk

6 Department for Environment, Food and Rural Affairs Telephone: 0113 2613333 (DEFRA - formerly FRCA) Fax: 0113 230 0879 Government Buildings, Otley Road, Lawnswood, Leeds, West Yorkshire, LS16 5QT

7 Natural England Telephone: 0845 600 3078 Email: [email protected] Suite D, Unex House, Bourges Boulevard, Peterborough, Website: www.naturalengland.org.uk Cambridgeshire, PE1 1NG

8 Environment Agency - Head Office Telephone: 01454 624400 Fax: 01454 624409 Rio House, Waterside Drive, Aztec West, Almondsbury, Bristol, Avon, BS32 4UD

9 Epping Forest District Council Website: www.eppingforestdc.gov.uk Civic Offices, 323 High Street, Epping, Essex, CM16 4BZ

10 Essex County Council Telephone: 01245 492211 Website: www.essexcc.gov.uk County Hall, Chelmsford, Essex, CM1 1YS

- Public Health England - Radon Survey, Centre for Telephone: 01235 822622 Radiation, Chemical and Environmental Hazards Fax: 01235 833891 Email: [email protected] Chilton, Didcot, Oxfordshire, OX11 0RQ Website: www.ukradon.org

- Landmark Information Group Limited Telephone: 0844 844 9952 Fax: 0844 844 9951 Imperium, Imperial Way, Reading, Berkshire, RG2 0TD Email: [email protected] Website: www.landmarkinfo.co.uk

Please note that the Environment Agency / Natural Resources Wales / SEPA have a charging policy in place for enquiries.

Order Number: 75063997_1_1 Date: 16-Nov-2015 rpr_ec_datasheet v50.0 A Landmark Information Group Service Page 29 of 29

APPENDIX G

WASTE ACCEPTANCE CRITERIA Site: Crown Lodge Barn WAC TEST RESULT ASSESSMENT Date: 16/12/2015

Position WS3 Hazardous Depth 0.60m Detection Inert Waste SNRHW Waste

Samples Sample ref D3 Limit Landfill Landfill Landfill pH (units) 7.6 -- -- 6.0 -- Total Organic Carbon (TOC) (%) 1.1 3 5 6 Loss on Ignition @ 450oC (%) 4.4 -- -- 10 Acid Neutralisation Capacity (mol/kg) 3.6 -- to be evaluated BTEX (µg/kg) 10 6000 -- -- Total PCB's (mg/kg) 0.007 1 -- --

Solid Analysis Solid Mineral Oil (mg/kg) 86 500 -- -- Total PAH (mg/kg) 8.4 100 -- -- Arsenic 0.0741 < 0.10 0.50 2 25 Barium 0.134 20 100 300 Cadmium 0.0008 < 0.0050 0.0400 1 5 Chromium 0.019 0.5 10 70 Copper 0.038 2 50 100 Mercury 0.005 < 0.015 0.01 0.2 2 Molybdenum 0.004 < 0.030 0.500 10 30 Nickel 0.032 < 0.010 0.400 10 40 Lead 0.064 0.5 10 50 Antimony 0.017 < 0.050 0.060 0.7 5 Selenium 0.04 < 0.10 0.10 0.5 7 Zinc 0.039 4 50 200 Chloride 63 < 40 800 15000 25000 Fluoride 3.20 10 150 500 Sulphate 120 1000 20000 5000 Total dissolved solids 710 4000 60000 100000

10:1 WACAnalysisLeachate (mg/kg 10:1 equivalent) Total monohydric phenols 0.10 < 1.6 1 -- -- Dissolved organic carbon 143.00 500 800 1000 Classification Inert

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 W: [email protected] HAZARDOUS WASTE ASSESSMENT

Project: Crown Lodge Date: 30/12/2015 Ref: LS1940

Sample: WS4 0.20m

WASTE ASSESSMENT RESULTS HAZ? LIMIT TOTAL R36 R37 R38 H4A no 2.00E+01 2.74E-02 1.12E-02 5.05E-03 1.12E-02 HAZ? LIMIT TOTAL R41 H4B no 1.00E+01 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R20 R21 R22 R48(Xn) R65 R68(Xn) H5 no 2.50E+01 2.34E-01 1.11E-01 2.90E-04 1.22E-01 0.00E+00 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R23 R24 R25 R39(T) R48(T) H6A no 3.00E+00 1.53E-02 7.55E-03 0.00E+00 2.65E-03 0.00E+00 5.05E-03 HAZ? LIMIT TOTAL R26 R27 R28 R39(Tx) H6B no 1.00E-01 6.30E-04 3.90E-04 0.00E+00 2.40E-04 0.00E+00 HAZ? LIMIT MAX R45 R49 H7A no 1.00E-01 3.10E-03 3.10E-03 1.50E-04 HAZ? LIMIT MAX R40 H7B no 1.00E+00 3.70E-03 3.70E-03 HAZ? LIMIT TOTAL R34 H8A no 5.00E+00 2.40E-04 2.40E-04 HAZ? LIMIT TOTAL R35 H8B no 1.00E+00 3.34E-03 3.34E-03 HAZ? LIMIT MAX R60 R61 H10A no 5.00E-01 7.50E-02 0.00E+00 7.50E-02 HAZ? LIMIT MAX R62 R63 H10B no 5.00E+00 7.50E-02 7.50E-02 4.90E-03 HAZ? LIMIT TOTAL R46 H11A no 1.00E-01 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R68(cat3) H11B no 1.00E+00 4.90E-03 4.90E-03 HAZ? LIMIT TOTAL R42 R43 H13 no 1.00E-02 6.95E-03 0.00E+00 6.95E-03 HAZ? LIMIT TOTAL R50-53/0.25R51-53/2.5R52-53/25 H14A1 YES 1.00E+00 1.09E+00 1.09E+00 1.96E-03 0.00E+00 HAZ? LIMIT TOTAL R50-53 R50 H14A2 no 2.50E+01 2.72E-01 2.72E-01 0.00E+00 HAZ? LIMIT TOTAL R50-53 R51-53 R52-53 R53 H14A3 no 2.50E+01 2.77E-01 2.72E-01 4.90E-03 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R52 H14A4 no 2.50E+01 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R59 H14B no 1.00E-01 0.00E+00 0.00E+00 HAZ? LIMIT TOTAL R44 H15 no 0.00E+00 0.00E+00 0.00E+00

THE OLD POLICE STATION, JOBS LANE, SAYERS COMMON, WEST SUSSEX, BN6 9HE T: 0845 604 6494 E: [email protected] TIER 1 SOIL SCREENING

Project: Crown Lodge Barn Soil Organic Matter (adopted): 2.5% SOM Reference: LS 1940 Scenario: Residential (with homegrown veg) Assessor: JH Sample Data: WS1 0.20m

DETERMINAND SOURCE VALUE UNITS RESULT pH NONE - pH Units 7 Total Cyanide NONE - mg/kg < 1 Water Soluble Sulphate (2:1 Leachate Equivalent) No health risk - g/l 0.022 Sulphide NONE - mg/kg < 1.0 Fraction Organic Carbon (FOC) No health risk - N/A 0.019 Total Phenol EA SGV 420 mg/kg < 1.0

Naphthalene LQM/CIEH 3.7 mg/kg 1.1 Acenaphthylene LQM/CIEH 400 mg/kg < 0.10 Acenaphthene LQM/CIEH 480 mg/kg < 0.10 Fluorene LQM/CIEH 380 mg/kg < 0.10 Phenanthrene LQM/CIEH 200 mg/kg 1.3 Anthracene LQM/CIEH 4900 mg/kg 0.39 Fluoranthene LQM/CIEH 460 mg/kg 2.5 Pyrene LQM/CIEH 1000 mg/kg 2 Benzo(a)anthracene LQM/CIEH 4.7 mg/kg 1.2 Chrysene LQM/CIEH 8 mg/kg 1.1 Benzo(b)fluoranthene LQM/CIEH 6.5 mg/kg 1.3 Benzo(k)fluoranthene LQM/CIEH 9.6 mg/kg 0.6 Benzo(a)pyrene C4SL 5 mg/kg 0.98 Indeno(1,2,3-cd)pyrene LQM/CIEH 3.9 mg/kg 0.55 Di-benzo(a,h)anthracene LQM/CIEH 0.86 mg/kg < 0.10 Benzo(ghi)perylene LQM/CIEH 46 mg/kg 0.69 Coronene NONE - mg/kg < 0.05 Total WAC-17 PAHs NONE - mg/kg 14

Arsenic C4SL 37 mg/kg 9.1 Barium NONE - mg/kg 140 Beryllium LQM/CIEH 51 mg/kg 0.8 Boron LQM/CIEH 291 mg/kg 2 Cadmium C4SL 26 mg/kg < 0.2 Chromium III LQM/CIEH 627 mg/kg 24 Copper LQM/CIEH 2330 mg/kg 30 Lead C4SL 200 mg/kg 440 Mercury Hg4 Methyl EA SGV 11 mg/kg < 0.3 Nickel EA SGV 130 mg/kg 17 Selenium EA SGV 350 mg/kg < 1.0 Vanadium LQM/CIEH 75 mg/kg 41 Zinc LQM/CIEH 3750 mg/kg 190

Page: 1 of 4 TIER 1 SOIL SCREENING

Project: Crown Lodge Barn Soil Organic Matter (adopted): 2.5% SOM Reference: LS 1940 Scenario: Residential (with homegrown veg) Assessor: JH Sample Data: WS2 0.20m

DETERMINAND SOURCE VALUE UNITS RESULT pH NONE - pH Units 6.7 Total Cyanide NONE - mg/kg < 1 Water Soluble Sulphate (2:1 Leachate Equivalent) No health risk - g/l 0.029 Sulphide NONE - mg/kg < 1.0 Fraction Organic Carbon (FOC) No health risk - N/A 0.016 Total Phenol EA SGV 420 mg/kg < 1.0

Naphthalene LQM/CIEH 3.7 mg/kg 0.57 Acenaphthylene LQM/CIEH 400 mg/kg < 0.10 Acenaphthene LQM/CIEH 480 mg/kg < 0.10 Fluorene LQM/CIEH 380 mg/kg < 0.10 Phenanthrene LQM/CIEH 200 mg/kg 0.35 Anthracene LQM/CIEH 4900 mg/kg 0.1 Fluoranthene LQM/CIEH 460 mg/kg 1.3 Pyrene LQM/CIEH 1000 mg/kg 1.1 Benzo(a)anthracene LQM/CIEH 4.7 mg/kg 0.69 Chrysene LQM/CIEH 8 mg/kg 0.78 Benzo(b)fluoranthene LQM/CIEH 6.5 mg/kg 0.74 Benzo(k)fluoranthene LQM/CIEH 9.6 mg/kg 0.77 Benzo(a)pyrene C4SL 5 mg/kg 0.77 Indeno(1,2,3-cd)pyrene LQM/CIEH 3.9 mg/kg 0.53 Di-benzo(a,h)anthracene LQM/CIEH 0.86 mg/kg 0.12 Benzo(ghi)perylene LQM/CIEH 46 mg/kg 0.59 Coronene NONE - mg/kg < 0.05 Total WAC-17 PAHs NONE - mg/kg 8.4

Arsenic C4SL 37 mg/kg 6.8 Barium NONE - mg/kg 170 Beryllium LQM/CIEH 51 mg/kg 0.9 Boron LQM/CIEH 291 mg/kg 2.2 Cadmium C4SL 26 mg/kg < 0.2 Chromium III LQM/CIEH 627 mg/kg 24 Copper LQM/CIEH 2330 mg/kg 32 Lead C4SL 200 mg/kg 470 Mercury Hg4 Methyl EA SGV 11 mg/kg 1.8 Nickel EA SGV 130 mg/kg 17 Selenium EA SGV 350 mg/kg < 1.0 Vanadium LQM/CIEH 75 mg/kg 41 Zinc LQM/CIEH 3750 mg/kg 190

Page: 2 of 4 TIER 1 SOIL SCREENING

Project: Crown Lodge Barn Soil Organic Matter (adopted): 2.5% SOM Reference: LS 1940 Scenario: Residential (with homegrown veg) Assessor: JH Sample Data: WS3 0.5m

DETERMINAND SOURCE VALUE UNITS RESULT pH NONE - pH Units 7.7 Total Cyanide NONE - mg/kg 2 Water Soluble Sulphate (2:1 Leachate Equivalent) No health risk - g/l 0.074 Sulphide NONE - mg/kg 9.5 Fraction Organic Carbon (FOC) No health risk - N/A 0.018 Total Phenol EA SGV 420 mg/kg < 1.0

Naphthalene LQM/CIEH 3.7 mg/kg < 0.05 Acenaphthylene LQM/CIEH 400 mg/kg < 0.10 Acenaphthene LQM/CIEH 480 mg/kg < 0.10 Fluorene LQM/CIEH 380 mg/kg < 0.10 Phenanthrene LQM/CIEH 200 mg/kg < 0.10 Anthracene LQM/CIEH 4900 mg/kg < 0.10 Fluoranthene LQM/CIEH 460 mg/kg < 0.10 Pyrene LQM/CIEH 1000 mg/kg < 0.10 Benzo(a)anthracene LQM/CIEH 4.7 mg/kg < 0.10 Chrysene LQM/CIEH 8 mg/kg < 0.05 Benzo(b)fluoranthene LQM/CIEH 6.5 mg/kg < 0.10 Benzo(k)fluoranthene LQM/CIEH 9.6 mg/kg < 0.10 Benzo(a)pyrene C4SL 5 mg/kg < 0.10 Indeno(1,2,3-cd)pyrene LQM/CIEH 3.9 mg/kg < 0.10 Di-benzo(a,h)anthracene LQM/CIEH 0.86 mg/kg < 0.10 Benzo(ghi)perylene LQM/CIEH 46 mg/kg < 0.05 Coronene NONE - mg/kg < 0.05 Total WAC-17 PAHs NONE - mg/kg < 1.6

Arsenic C4SL 37 mg/kg 24 Barium NONE - mg/kg 210 Beryllium LQM/CIEH 51 mg/kg 0.8 Boron LQM/CIEH 291 mg/kg 2.8 Cadmium C4SL 26 mg/kg 0.4 Chromium III LQM/CIEH 627 mg/kg 26 Copper LQM/CIEH 2330 mg/kg 74 Lead C4SL 200 mg/kg 260 Mercury Hg4 Methyl EA SGV 11 mg/kg < 0.3 Nickel EA SGV 130 mg/kg 21 Selenium EA SGV 350 mg/kg < 1.0 Vanadium LQM/CIEH 75 mg/kg 38 Zinc LQM/CIEH 3750 mg/kg 350

Page: 3 of 4 TIER 1 SOIL SCREENING

Project: Crown Lodge Barn Soil Organic Matter (adopted): 2.5% SOM Reference: LS 1940 Scenario: Residential (with homegrown veg) Assessor: JH Sample Data: WS4 0.20m

DETERMINAND SOURCE VALUE UNITS RESULT pH NONE - pH Units 7.8 Total Cyanide NONE - mg/kg < 1 Water Soluble Sulphate (2:1 Leachate Equivalent) No health risk - g/l 0.06 Sulphide NONE - mg/kg 34 Fraction Organic Carbon (FOC) No health risk - N/A 0.029 Total Phenol EA SGV 420 mg/kg < 1.0

Naphthalene LQM/CIEH 3.7 mg/kg 1.2 Acenaphthylene LQM/CIEH 400 mg/kg 0.75 Acenaphthene LQM/CIEH 480 mg/kg 0.34 Fluorene LQM/CIEH 380 mg/kg 0.36 Phenanthrene LQM/CIEH 200 mg/kg 4.4 Anthracene LQM/CIEH 4900 mg/kg 1.1 Fluoranthene LQM/CIEH 460 mg/kg 9.9 Pyrene LQM/CIEH 1000 mg/kg 9.3 Benzo(a)anthracene LQM/CIEH 4.7 mg/kg 5.9 Chrysene LQM/CIEH 8 mg/kg 4.5 Benzo(b)fluoranthene LQM/CIEH 6.5 mg/kg 6.1 Benzo(k)fluoranthene LQM/CIEH 9.6 mg/kg 5.1 Benzo(a)pyrene C4SL 5 mg/kg 6 Indeno(1,2,3-cd)pyrene LQM/CIEH 3.9 mg/kg 4.2 Di-benzo(a,h)anthracene LQM/CIEH 0.86 mg/kg 0.96 Benzo(ghi)perylene LQM/CIEH 46 mg/kg 5 Coronene NONE - mg/kg < 0.05 Total WAC-17 PAHs NONE - mg/kg 65

Arsenic C4SL 37 mg/kg 25 Barium NONE - mg/kg 310 Beryllium LQM/CIEH 51 mg/kg 1.5 Boron LQM/CIEH 291 mg/kg 2.4 Cadmium C4SL 26 mg/kg 2.9 Chromium III LQM/CIEH 627 mg/kg 31 Copper LQM/CIEH 2330 mg/kg 110 Lead C4SL 200 mg/kg 750 Mercury Hg4 Methyl EA SGV 11 mg/kg < 0.3 Nickel EA SGV 130 mg/kg 37 Selenium EA SGV 350 mg/kg < 1.0 Vanadium LQM/CIEH 75 mg/kg 49 Zinc LQM/CIEH 3750 mg/kg 1800

Page: 4 of 4 Hand Penetrometer Results versus Depth Profile

Project Name : Crown Lodge Barn, Crown Hill, EN9 3TF Notes: Job No. : LS 1940 Client : Harvey Developments Date : 23/11/2015

Borehole No. WS1 Borehole No. WS2 Borehole No. WS3 Depth HP Depth HP Depth HP result kg/cm2 result result result 0.0 1.0 2.0 3.0 4.0 (m) kg/cm2 (m) kg/cm2 (m) kg/cm2 0.00 0.50 1.5 0.50 1.5 0.75 1.3 0.75 2.4 0.75 1.5 1.00 1.4 1.00 1.8 1.00 1.9 1.75 1.1 1.25 1.4 1.25 1.1 2.00 2.0 1.50 2.0 1.50 1.4 2.25 1.8 1.75 2.0 1.75 1.6 2.50 1.8 1.00 2.00 2.2 2.00 2.4 2.75 2.2 2.25 0.3 2.25 2.5 3.00 2.1 2.50 1.6 2.50 1.8 2.75 1.6 2.75 2.0 Borehole No. WS4 3.00 1.4 3.00 1.7 Depth HP 2.00 3.25 1.8 result 3.50 1.8 (m) kg/cm2 3.75 2.4 0.50 1.9

4.00 2.4 0.75 0.6 (m) Depth 4.25 3.7 1.00 0.6 4.50 2.6 2.00 1.7 3.00 4.75 2.9 2.25 1.7 5.00 2.8 2.50 1.6 2.75 2.2 3.00 2.2 4.00

5.00

WS1 WS2 WS3 WS4 Moisture Content Results versus Depth Profile

Project Name : Crown Lodge Barn, Crown Hill Notes: Job No. : LS 1940 Client : Harvey Developments Date : 07/12/2015

Borehole No. WS1 Borehole No. WS2 Borehole No. WS3 Depth Moisture Depth Moisture Depth Moisture Moisture Content % Content Content Content 10 15 20 25 30 35 40 (m) % (m) % (m) % 0.00 0.50 25 0.50 24 1.50 30 1.00 18 1.00 33 2.00 31 1.50 30 1.50 31 2.50 34 2.00 30 2.00 32 3.00 32 2.50 34 2.50 34 1.00 3.00 34 3.00 34 3.50 33 4.00 32 4.50 32 2.00 5.00 34

Borehole No. WS4 Depth Moisture 3.00

Content (m) Depth (m) % 0.50 27 1.00 28 4.00 1.50 12 2.00 28 2.50 33 3.00 33 5.00

6.00

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Gemma Design Ltd

Appendix E – Microdrainage calculations

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex Gemma Design Ltd Page 1 Lea View House Crown lodge Two Rivers Estate Upshire Station Lane Witney Essex Date 22/01/16 Designed by PI File Attenuation Tank - Orif... Checked by SW Micro Drainage Source Control 2014.1

Summary of Results for 100 year Return Period (+30%)

Half Drain Time : 70 minutes.

Storm Max Max Max Max Max Max Status Event Level Depth Infiltration Control Σ Outflow Volume (m) (m) (l/s) (l/s) (l/s) (m³)

15 min Summer -0.678 0.272 0.0 2.2 2.2 10.9 O K 30 min Summer -0.625 0.325 0.0 2.8 2.8 13.0 O K 60 min Summer -0.593 0.357 0.0 3.1 3.1 14.2 O K 120 min Summer -0.578 0.372 0.0 3.2 3.2 14.8 O K 180 min Summer -0.583 0.367 0.0 3.1 3.1 14.6 O K 240 min Summer -0.595 0.355 0.0 3.0 3.0 14.2 O K 360 min Summer -0.620 0.330 0.0 2.8 2.8 13.2 O K 480 min Summer -0.642 0.308 0.0 2.6 2.6 12.3 O K 600 min Summer -0.660 0.290 0.0 2.4 2.4 11.6 O K 720 min Summer -0.676 0.274 0.0 2.2 2.2 10.9 O K 960 min Summer -0.698 0.252 0.0 2.0 2.0 10.0 O K 1440 min Summer -0.721 0.229 0.0 1.5 1.5 9.1 O K 2160 min Summer -0.736 0.214 0.0 1.1 1.1 8.5 O K 2880 min Summer -0.744 0.206 0.0 0.9 0.9 8.2 O K 4320 min Summer -0.754 0.196 0.0 0.7 0.7 7.8 O K 5760 min Summer -0.761 0.189 0.0 0.5 0.5 7.5 O K 7200 min Summer -0.766 0.184 0.0 0.4 0.4 7.3 O K 8640 min Summer -0.768 0.182 0.0 0.4 0.4 7.3 O K 10080 min Summer -0.770 0.180 0.0 0.3 0.3 7.2 O K 15 min Winter -0.646 0.304 0.0 2.6 2.6 12.1 O K

Storm Rain Flooded Discharge Time-Peak Event (mm/hr) Volume Volume (mins) (m³) (m³)

15 min Summer 136.221 0.0 5.7 17 30 min Summer 88.171 0.0 9.2 30 60 min Summer 54.281 0.0 12.7 46 120 min Summer 32.278 0.0 16.3 80 180 min Summer 23.509 0.0 18.3 112 240 min Summer 18.670 0.0 19.8 144 360 min Summer 13.466 0.0 21.9 208 480 min Summer 10.678 0.0 23.5 268 600 min Summer 8.913 0.0 24.7 326 720 min Summer 7.686 0.0 25.8 386 960 min Summer 6.081 0.0 27.6 502 1440 min Summer 4.366 0.0 30.1 738 2160 min Summer 3.129 0.0 32.9 1100 2880 min Summer 2.469 0.0 34.9 1468 4320 min Summer 1.766 0.0 37.8 2200 5760 min Summer 1.391 0.0 40.1 2912 7200 min Summer 1.155 0.0 41.8 3672 8640 min Summer 0.992 0.0 43.3 4376 10080 min Summer 0.872 0.0 44.5 5040 15 min Winter 136.221 0.0 7.1 17

©1982-2014 XP Solutions Gemma Design Ltd Page 2 Lea View House Crown lodge Two Rivers Estate Upshire Station Lane Witney Essex Date 22/01/16 Designed by PI File Attenuation Tank - Orif... Checked by SW Micro Drainage Source Control 2014.1

Summary of Results for 100 year Return Period (+30%)

Storm Max Max Max Max Max Max Status Event Level Depth Infiltration Control Σ Outflow Volume (m) (m) (l/s) (l/s) (l/s) (m³)

30 min Winter -0.586 0.364 0.0 3.1 3.1 14.5 O K 60 min Winter -0.553 0.397 0.0 3.4 3.4 15.8 O K 120 min Winter -0.551 0.399 0.0 3.4 3.4 15.9 O K 180 min Winter -0.569 0.381 0.0 3.3 3.3 15.2 O K 240 min Winter -0.591 0.359 0.0 3.1 3.1 14.3 O K 360 min Winter -0.631 0.319 0.0 2.7 2.7 12.7 O K 480 min Winter -0.661 0.289 0.0 2.4 2.4 11.5 O K 600 min Winter -0.683 0.267 0.0 2.1 2.1 10.6 O K 720 min Winter -0.700 0.250 0.0 1.9 1.9 10.0 O K 960 min Winter -0.719 0.231 0.0 1.6 1.6 9.2 O K 1440 min Winter -0.735 0.215 0.0 1.2 1.2 8.6 O K 2160 min Winter -0.747 0.203 0.0 0.8 0.8 8.1 O K 2880 min Winter -0.754 0.196 0.0 0.7 0.7 7.8 O K 4320 min Winter -0.763 0.187 0.0 0.5 0.5 7.4 O K 5760 min Winter -0.768 0.182 0.0 0.4 0.4 7.3 O K 7200 min Winter -0.770 0.180 0.0 0.3 0.3 7.2 O K 8640 min Winter -0.772 0.178 0.0 0.3 0.3 7.1 O K 10080 min Winter -0.774 0.176 0.0 0.2 0.2 7.0 O K

Storm Rain Flooded Discharge Time-Peak Event (mm/hr) Volume Volume (mins) (m³) (m³)

30 min Winter 88.171 0.0 11.0 30 60 min Winter 54.281 0.0 15.0 48 120 min Winter 32.278 0.0 18.9 86 180 min Winter 23.509 0.0 21.3 120 240 min Winter 18.670 0.0 22.9 154 360 min Winter 13.466 0.0 25.2 216 480 min Winter 10.678 0.0 27.0 276 600 min Winter 8.913 0.0 28.4 334 720 min Winter 7.686 0.0 29.6 392 960 min Winter 6.081 0.0 31.6 502 1440 min Winter 4.366 0.0 34.5 738 2160 min Winter 3.129 0.0 37.5 1100 2880 min Winter 2.469 0.0 39.8 1468 4320 min Winter 1.766 0.0 43.1 2192 5760 min Winter 1.391 0.0 45.6 2896 7200 min Winter 1.155 0.0 47.6 3584 8640 min Winter 0.992 0.0 49.2 4392 10080 min Winter 0.872 0.0 50.6 5104

©1982-2014 XP Solutions Gemma Design Ltd Page 3 Lea View House Crown lodge Two Rivers Estate Upshire Station Lane Witney Essex Date 22/01/16 Designed by PI File Attenuation Tank - Orif... Checked by SW Micro Drainage Source Control 2014.1

Rainfall Details

Rainfall Model FSR Winter Storms Yes Return Period (years) 100 Cv (Summer) 0.750 Region England and Wales Cv (Winter) 0.840 M5-60 (mm) 20.600 Shortest Storm (mins) 15 Ratio R 0.433 Longest Storm (mins) 10080 Summer Storms Yes Climate Change % +30

Time Area Diagram

Total Area (ha) 0.046

Time (mins) Area From: To: (ha)

0 4 0.046

©1982-2014 XP Solutions Gemma Design Ltd Page 4 Lea View House Crown lodge Two Rivers Estate Upshire Station Lane Witney Essex Date 22/01/16 Designed by PI File Attenuation Tank - Orif... Checked by SW Micro Drainage Source Control 2014.1

Model Details

Storage is Online Cover Level (m) 0.000

Cellular Storage Structure

Invert Level (m) -0.950 Safety Factor 2.0 Infiltration Coefficient Base (m/hr) 0.00000 Porosity 0.95 Infiltration Coefficient Side (m/hr) 0.00000

Depth (m) Area (m²) Inf. Area (m²) Depth (m) Area (m²) Inf. Area (m²)

0.000 42.0 42.0 0.401 0.0 52.4 0.400 42.0 52.4

Orifice Outflow Control

Diameter (m) 0.059 Discharge Coefficient 0.600 Invert Level (m) -0.800

©1982-2014 XP Solutions

Gemma Design Ltd

Appendix F – Proposed surface water drainage design & construction details (Gemma design Nr. 4082-GDL-XX-D-DR-C-003, 4082- GDL-XX-D-DR-C-010&11)

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex 86.51 78.99 ￿ ￿ Drawing Produced To Architects Drawing No. 78.91 Main House 78.68 79.48 IC 78.58 TREE CL78.67 NOTES DIA:0.25 CPS IL78.20 2 DESIGNERS CDM NOTE SPR:8.00 78.90 TREE 79.66 78.60 78.59 DIA:0.30 THERE ARE NO SUBSTANTIAL RESIDUAL RISK Wall Ht 0.15 78.67 79.03 OHC 79.07 SPR:8.00 77.71 ITEMS IDENTIFIED 78.92 Grass 4 79.38 79.37 78.92 GENERAL NOTES IC CL78.63 1. All dimensions in millimetres and levels in metres 79.04 78.92 IL78.19 2. This drawing is to be read in conjunction with the relevant ￿ 77.87 Stay 79.58 78.92 Architect's/Engineer's drawings, specifications and CDM ￿ documentation TREE 78.88 Barn 78.65 3. This drawings has been produced electronically and may have DIA:0.50 ￿ been photo reduced or enlarged when copied. Work to figured SPR:12.00 Step dimensions only (DO NOT SCALE). All dimensions to be checked 79.32 78.80 on site. Any errors or omissions to be reported to the engineer 78.73 77.98 immediately. TREE 78.91 78.86 78.71 78.82 78.90 PP DIA:0.20 CPS 78.78 4. This drawing contains coloured lines / information that may not 78.87 3 be clear if printed / reproduced in monochrome 79.76 SPR:10.00 Concrete 78.76 KEY 78.79 OHC Foul drain (private/non adoptable) Concrete 78.77 Surface water drain (private/non-adoptable) Grass 78.79 77.88 78.73 79.07 Foul sewer (Adoptable) 79.07 Outbuilding 78.92 Surface water drain (Adoptable) 78.73 Highway Drain (Adoptable) 79.12 Wall Ht 0.90 78.80 Existing Private Foul drain 78.98 Existing Private Surface water drain 79.48 CPS Existing Adoptable Foul sewer Step 78.84 78.83 Existing Adoptable Surface water sewer Existing 79.34 78.84 79.09 Adoptable Combined water sewer Blocks SW FW CHAMBER DETAILS 78.81 78.05 'HSWKPRUOHVV0LQLDFFHVVFKDPEHU0$& PP‘ 79.16 78.95 79.23 78.98 78.93 'HSWKPWRP33,& PP‘ 78.83 Depth - 0.45m to 1.25m 600x450 P.C.C. units/brick 78.89 78.85 (preferred type for trafficked areas) 79.12 DM DM Adoptable demarcation manhole within 1m of boundary 78.84 600mm x 450mm (size to be confirmed by adoption Vegatation authority) PCC or brick construction NOT plastic. Manhole Tarmac OHC 79.13 'HSWKWRP PP‘3&&ULQJ Concrete 78.78 78.87 78.78 8 OHC re Surface water rodding eye 78.94 F1 Manhole number 79.45 79.15 78.99 Entrance into building Concrete Fence Ht 1.90 Soil Vent Pipe/Soil Stack TREE 79.29 79.19 79.17 79.00 Rain water down pipe (roddable access) DIA:0.40 79.19

79.16 Ridge Plot 1 78.13 A OHC FFL 79.50 78.95 79.79 Barns FFL 79.50 79.11 S1 79.93 78.19 79.27 CB Fence Ht 2.00 TREE Cover levels to be raised as 79.47 79.09Orifice Plate to be installed S9 appropriate DIA:0.60 C/P 7 P3 PI SW Cut off drain added 29/01/16 SPR:18.00 Limiting discharge: 5l/s 79.50 Design Head: 0.5m 79.28 78.94 P2 PI SW Orifice details added 26/01/16 79.79 79.30 TREE S7 DIA:0.15 79.14 P1 AJ PI Preliminary Issue 22/01/16 S8 79.31 S7 SPR:6.00 Plot 2 Proposed headwall 79.29 Drawn Chk'd Rev Comments Date 78.32 by by FFL 79.50 79.32 79.16 FFL 79.50 79.15 CLIENT

84.20

SA1 TREE Eave Jack Harvey Construction DIA:0.70 Carport SA1 79.06 SPR:18.00 S2 FFL 79.40 78.34 Gravel 79.00 79.61

79.25 TITLE 79.29 Proposed Drainage Layout 79.51 79.46 S6 C/P Crown Lodge 79.72 S3 79.28 Upshire OHC Essex 79.45 79.35 OHC

S4 79.53

CB Fence Ht 0.95 79.82 79.54 6 79.34 CB Fence Ht 0.95 Attenuation Tank 78.55 SCALE 0m 5m 10m Device Design Parameters 79.01 Proposed cut off drain Cellular Storage Porosity: 0.95 1:200@A1 scale bar @ 1:200 79.51 S5 Design for 1 in 100 years+30% Minimum cover depth: 0.30m Surface Water Drainage Schedule DATE DESIGNED BY PROJECT NO. 79.55 Total Design Contributing Imp area: 460sq.m MANHOLE INVERT COVER Storage Dimensions 4.0mx10.50mx0.4m(d) MANHOLE TYPE Depth (m) Grade Pipe Dia Length AJ 4082 Cover Level:79.30 REF LEVEL LEVEL January 2016 HW 78.240 78.94 Headwall 0.700 1 in (mm) (m) OHC Invert Level:78.34 25 150 2.00 Wavin 'Eco' or similar S7 78.320 79.14 Orifice 0.820 DRAWING NUMBER REV. SA1 78.343 79.30 Attenuation tank 0.957 100 150 2.33 79.71 11 150 1.24 79.49 PP S6 78.461 79.40 PPIC(catchpit) 0.939 4082-GDL-XX-D-DR-C-003 P3 S5 79.45 PPIC 0.944 100 150 4.50 79.43 79.22 78.506 100 150 7.52 78.58 S4 78.582 79.45 PPIC 0.868 CB Fence Ht 0.95 S3 78.651 79.45 PPIC 0.799 100 150 6.90 Gemma Design Limited S2 79.40 PPIC 0.678 100 150 7.15 78.722 60 150 8.00 Consulting Civil & Structural Engineers 79.51 S1 78.855 79.45 mac 0.595 Lea View House, Two Rivers Estate, Station 78.83 Lane, Witney, Oxon. OX28 4LD Proposed79.48 headwall S3 78.651 79.45 PPIC 0.799 S8 79.41 PPIC 0.684 100 150 7.54 Tel: Witney (01993) 705522/771544 78.726 E-mail: [email protected] GEMMA DESIGN SA1 78.343 79.30 Attenuation tank 0.957 Web: www.gemma-design.co.uk S9 79.20 PPIC(catchpit) 0.843 100 150 1.40 78.357 STATUS PURPOSE OF ISSUE S2 PRELIMINARY Drawing Produced To Architects Drawing No.

Compacted infill - NOTES 110mm dia soil vent Rainwater pipe up to maximum 110 mm pipe diameter or 100 mm square DESIGNERS CDM NOTE Screwed blanking plate or alternatively a Opening masked both sides with Lowest incoming Cement mortar fillet grill may be used where surface water from rigid sheet material to prevent THERE ARE NO SUBSTANTIAL RESIDUAL RISK connection NON ADOPTABLE DRAINAGE NOTES hard rodent infestation ITEMS IDENTIFIED areas is directed towards the gully F.F.L. Suspended slab Generally non-adoptable drainage shall comply with the GENERAL NOTES Vertical inlet hopper DTLR Building Regulations approved document H (April 2002) Bend to suit depth of main F.G.L. GUDLQ PD[ƒ 1. All dimensions in millimetres and levels in metres

1. Any changes made from the drainage design shown on this drawing shall be 450mm (min) for single dwellings 2. This drawing is to be read in conjunction with the relevant upto 3 storeys reported to the Engineer. Chamber size Architect's/Engineer's drawings, specifications and CDM 750mm for multi storey buildings depth dependent Void Void Void documentation CI cover and plastic frame suitable for use where wheel 300 or 425 upto 3 to 5 storeys. 2. The Contractor must confirm the invert levels and positions of all loads do not exceed 1.5 tonnes. These chambers are not Above 5 storeys, consult Engineer 3. This drawings has been produced electronically and may designed for heavy loads and suitable manhole alternatives outfalls/connections to existing drainage prior to commencing work on-site. have been photo reduced or enlarged when copied. Work to will be required or a concrete ST4 collar provided where figured dimensions only (DO NOT SCALE). All dimensions to be permitted by the Engineer 3. Non-adoptable chambers shall be :- checked on site. Any errors or omissions to be reported to the engineer immediately. ƒ%HQG depth to chamber size Concrete bed 4. This drawing contains coloured lines / information that may invert and type Rest bend (preferably telescopic) not be clear if printed / reproduced in monochrome 150 150 for use up to 2 stories PWRPVKDOORZDFFHVVFKDPEHUPP‘ rocker 600 Main Drain RAIN WATER PIPE WITH RODDING ACCESS rocker 600 Concrete bed to rest bend PWRP,QVSHFWLRQFKDPEHUPP‘ SRO\SURS

600mmx450mm Brick/P.C.C units Arch or lintelled opening to Type S granular bed and surround give 50mm space all around WR0DQKROHPP‘3&&ULQJ pipe. Void to be filled with 100mm diam. clay or plastic pipe compressible sealant to laid at min fall of 1/40 1200mmx750mm Brick/P.C.C. units prevent entry of gas.

WR0DQKROHPP‘3&&ULQJ ULQJGLDPHWHU Internal Max No Branch Min Max LQFUHDVHGLIVHZHUGLDJUHDWHUWKDQPP‘ Chamber Type Diameter Inlets Dia Depth Depth See pipeline building When sited in driveways Polypropylene Mini Access 300 3 100 325 600 entry detail Chamber (PPIC MAC) 4. All manholes shall have a flexible joint within 150mm of the face of the structure and hardstanding and a "rocker pipe " which should not exceed 600mm in length. Well compacted areas 225mm deep Polypropylene Inspection 475 5 100 400 1250 bedding material used concrete plinth to Chamber (PPIC) support surface finishes 5. Non-adoptable drainage to be either :- as backfill. is to be provided 1. :KHUHFKDPEHUVDUHSRVLWLRQHGRQƒFRUQHUVDOZD\VXVHWKHPDLQ concrete to BS 5911:Part 100 and 110 around chamber FKDQQHOE\ILWWLQJDƒDQJOHEHQGRQWKHLQOHWDQGRXWOHW vitrified clayware to BS EN 295 Grey iron to BS437 2. %HQGVXSWRDPD[ƒDQJOHFDQEHXVHGRQDQ\LQOHW UPVC to BS EN 1401 3. Heaviest flow should always be directed through the main channel. PP to BS EN 1852 Main flow Main flow Structure wall to BS EN 13476 4. 6KRUWVWHHSFRQQHFWLRQVVKRXOGSUHIHUDEO\EHFRQQHFWHGYLDDƒLQOHW Confirm plastic pipes acceptable to Client. using a bend where necessary.

5. In buildings up to 3 storey's the rest bend at the base of the soil stack 6. For private drains, pipes with less than 0.9m cover beneath carriageways & should be 450mm below the invert of the lowest incoming drain.In hardstanding or 600mm in other areas shall have 100mm thick concrete slab SHALLOW ACCESS CHAMBER INSPECTION CHAMBER buildings over 3 storey's this should be increased to 750mm.In buildings with mesh reinforcement and 150mm bearing each side of the trench. Where over 5 storey's the ground floor drainage connections should have their own connections to the external drain. the depth of cover at any location is less than 450mm it is recommended that a concrete surround with flexible joints is provided. SOIL PIPE CONNECTION 7. Trenches within 1m of load bearing walls should be filled with concrete at least to the underside of the foundation. Where the distance is more than 1m from the foundations the concrete should be taken at least up to a 45degree line from the bottom of the foundations. Alternatively, the foundations could be taken to a deeper level to avoid undermining by the drainage trench (check with the Engineer where this is required).

8. Pipe bed and surround to be Type S granular unless otherwise noted in item 7.

9. Drains passing through walls or foundations should have either an arched or lintelled opening to give 50mm clearance around the pipe. The opening shall be Cover & frame to suit loading conditions and size of chamber (see below) masked both sides with a rigid non perishable material, or alternatively a short length of pipe may be built in solid if it is connected within 150mm to rocker pipes (max 600mm long) with flexible joints. Mortar haunching to MH cover and frame Min 1, Max 4 courses Class 10. Drains under buildings should be surrounded by at least 100mm of granular or Cover & frame to suit B Engineering Brickwork, loading conditions. other flexible filling. Bedded on Class M1 Mortar To be bedded on Class M1 Mortar precast concrete sections 11. 8QOHVVRWKHUZLVHVWDWHGDOOQRQDGRSWDEOHGUDLQDJHVKDOOEHPP‘ (see drainage schedules). ‘PP+LJK/HYHOYHQW precast Benching slope 1 in 12 from cellular storage concrete lintel 12. 5RDGJXOO\FRQQHFWLRQVWREHPP‘ Permafilter & Orifice Flow Control

16. Shallow pipelines may need to be protected when laid at an early stage of a Crown Lodge contract and are subject to construction traffic loadings. Upshire Cover & Frame to suit Essex 17. In buildings up to 3 storeys the rest bend at the base of the soil stack should be loading conditions 450mm below the invert of the lowest incoming drain.In buildings over 3 storeys this should be increased to 750mm.In buildings over 5 storeys the ground floor drainage connections should have their own connections to the external drain. SCALE N.T.S. 150mm side fill as dug material with no particle sizes larger than 40mm. 150mm ST4 DATE DESIGNED BY PROJECT NO. concrete surround to be used Polypropylene silt trap e.g. Polypipe in Trafficked area. January 2016 PI 4082 PSMST160 or similar. Contact: Polypipe DRAWING NUMBER REV. Broomhouse Lane Edlington 4082-GDL-XX-D-DR-C-010 P2 Doncaster DN12 1ES UK Tel: +44 (0)1709 770000 Gemma Design Limited Fax: +44 (0)1709 770001 300 Consulting Civil & Structural Engineers Lea View House, Two Rivers Estate, Station Lane, Witney, Oxon. OX28 4LD 150 Tel: Witney (01993) 705522/771544 E-mail: [email protected] GEMMA DESIGN Web: www.gemma-design.co.uk TYPICAL SILT TRAP MANHOLE DETAIL STATUS PURPOSE OF ISSUE S2 PRELIMINARY Drawing Produced To Architects Drawing No. - NOTES DESIGNERS CDM NOTE NON ADOPTABLE DRAINAGE NOTES verge carriageway TABLE 1: GRANULAR BEDDING AND THERE ARE NO SUBSTANTIAL RESIDUAL RISK Generally non-adoptable drainage shall comply with the topsoil SIDEFILL MATERIALS FOR RIGID PIPES ITEMS IDENTIFIED DTLR Building Regulations approved document H (April 2002) 150mm topsoil & grass seed carriageway (eg concrete & clayware) construction GENERAL NOTES 1. Any changes made from the drainage design shown on this drawing shall be Acceptable backfill material to underside Suitable as-dug material Pipe Pipe Bedding Requirement 1. All dimensions in millimetres and levels in metres reported to the Engineer. Protective Geotextile layer Minimum cover depth 0.30m of topsoil Compacted in layers not greater nominal (mm) around 'modular' system than 250mm thick Note: on first 250mm size (DN) 2. This drawing is to be read in conjunction with the relevant e.g. Terram 2000 or similar layer heavy compaction not to be used Trench backfill material to be type 1 2. The Contractor must confirm the invert levels and positions of all Architect's/Engineer's drawings, specifications and CDM granular sub-base under carriageways 150 14mm to 5mm graded outfalls/connections to existing drainage prior to commencing work on-site. documentation Min layer of 150mm above pipe crown 150mm min ‘KLJKOHYHOYHQW 300mm max 14mm to 5mm graded or 3. This drawings has been produced electronically and may conforming to tables 1 or table 2 225-525 3. Non-adoptable chambers shall be :- to orifice 20mm to 5mm graded have been photo reduced or enlarged when copied. Work to figured dimensions only (DO NOT SCALE). All dimensions to be 500 and 14mm to 5mm graded or checked on site. Any errors or omissions to be reported to the depth to chamber size Cellular system* e.g. Wavin above 20mm to 5mm graded Sidefill material engineer immediately. invert and type Aquacell Eco or similar 150mm min individual cellular unit size cellular storage height Bedding material 4. This drawing contains coloured lines / information that may 1000lgth x 500width x 400mm 1 x 400mm units shown 300mm max ‘LQOHWSLSH not be clear if printed / reproduced in monochrome PWRPVKDOORZDFFHVVFKDPEHUPP‘ depth from upstream silt trap/catchpit PWRP,QVSHFWLRQFKDPEHUPP‘ SRO\SURS GRANULAR SURROUND BED TYPE S 600mmx450mm Brick/P.C.C units ‘RXWOHWSLSH Cellular module To be used where cover to pipe soffit is greater than 1200mm in vehicular areas invert level. and greater than 900mm in non-trafficked areas (ie footpaths, verges, etc) WR0DQKROHPP‘3&&ULQJ Coarse sand or non 100 1200mmx750mm Brick/P.C.C. units angular granular material bed and surround 500 100 Impermeable WR0DQKROHPP‘3&&ULQJ ULQJGLDPHWHU verge carriageway NOTE: Cellular systems to be protected during construction period. geomembrane eg SC LQFUHDVHGLIVHZHUGLDJUHDWHUWKDQPP‘ Membrane or similar topsoil 4. All manholes shall have a flexible joint within 150mm of the face of the structure CELLULAR STORAGE (TYPICAL SECTION DETAIL) carriageway and a "rocker pipe " which should not exceed 600mm in length. construction Acceptable backfill material to underside of topsoil Compacted in layers not greater 5. Non-adoptable drainage to be either :- than 250mm thick Note, on first 250mm layer concrete to BS 5911:Part 100 and 110 heavy compaction not to be used Trench backfill material vitrified clayware to BS EN 295 to be type 1 granular sub-base under carriageways Grey iron to BS437 150mm min UPVC to BS EN 1401 300mm max PP to BS EN 1852 Structure wall to BS EN 13476 150mm ST4 concrete bed and surround to Confirm plastic pipes acceptable to Client. Section 4 of BS 5328 part 2, 1991 20mm nominal size aggregate. Concrete surround to have compressible filler 6. For private drains, pipes with less than 0.9m cover beneath carriageways & movement joints at each pipe hardstanding or 600mm in other areas shall have 100mm thick concrete slab 150mm min coupling (18mm thick bitumen with mesh reinforcement and 150mm bearing each side of the trench. Where 300mm max impregnated insulating board). the depth of cover at any location is less than 450mm it is recommended that a consideration to be given to concrete surround with flexible joints is provided. making up ground levels to Filter material to be prevent surface water overrun extended to surface level CONCRETE SURROUND BED TYPE Z 7. Trenches within 1m of load bearing walls should be filled with concrete at least from steep slopes Runoff To be used where cover to pipe soffit is less than 1200mm in vehicular to the underside of the foundation. Where the distance is more than 1m from the areas and 900mm in non-trafficked areas (ie footpaths, verges, etc) foundations the concrete should be taken at least up to a 45degree line from the bottom of the foundations. Alternatively, the foundations could be taken to 150 a deeper level to avoid undermining by the drainage trench (check with the Engineer where this is required). Terram 2000 filtration/ separation fabric or similar verge carriageway 8. Pipe bed and surround to be Type S granular unless otherwise noted in item 7. PP‘SHUIRUDWHGSODVWLFODQG topsoil 600 9. Drains passing through walls or foundations should have either an arched or drain where noted on Engineering Layout. Perforations laid upwards lintelled opening to give 50mm clearance around the pipe. The opening shall be carriageway Trench backfill material to be type 1 granular sub-base under carriageways masked both sides with a rigid non perishable material, or alternatively a short construction Acceptable backfill material to length of pipe may be built in solid if it is connected within 150mm to rocker underside of topsoil compacted in Pipe bed and surrounded with Type pipes (max 600mm long) with flexible joints. layers not greater than 250mm B filter material steel mesh (393)reinforcement thick Note, on first 250mm layer 150 50mm off bottom of concrete heavy compaction not to be 10. Drains under buildings should be surrounded by at least 100mm of granular or other flexible filling. Grading 150 150mm ST4 concrete slab and surround to Section 4 of BS 5328 Sieve Size Passing 300 Compressible material 11. 8QOHVVRWKHUZLVHVWDWHGDOOQRQDGRSWDEOHGUDLQDJHVKDOOEHPP‘ part 2, 1991 20mm nominal size immediately below slab 150 min aggregate. Concrete surround to (see drainage schedules). 63 100 To be used where it is necessary to cut 300 max 300 min have compressible filler off surface runoff e.g. at the bottom of see note movement joints at each pipe embankments, boundaries on low side 12. 5RDGJXOO\FRQQHFWLRQVWREHPP‘ 37.5 85 - 100 coupling (18mm thick bitumen of agricultural fields.

13. New connections to existing public sewers should be carried out as required and 10 0 - 5 CUT OFF DRAIN under the supervision of the Water Authority The appropriate sewer connection 150 min NOTE :- Slab must span trench notice should be applied for where appropriate. 300 max completely bearing on original ground both sides. Bearing width (300mm min) P2 PI SW Cut off drain detail added 29/01/16 14. Covers shall be to B.S. EN 124:1994 Class A15 access covers and gratings will vary with pipe size, consult Engineer capable of withstanding a 1.5 T load. For use in areas where only pedestrians P1 PI SW Preliminary Issue 22/01/16 have access. Class B125 access covers and frames capable of withstanding a CONCRETE SLAB PROTECTION 12.5T load. For use in car parks and pedestrian areas where occasional vehicular Drawn Chk'd To be used where cover to pipe soffit is less than 1200mm in vehicular Rev Comments Date access is likely. Class C250 access covers and frames capable of withstanding a by by areas and 900mm in non-trafficked areas (ie footpaths, verges, etc) 25T load. For use in areas where not extending more than 500mm from kerb face into the carriageway Class D400 access covers and gratings capable of CLIENT withstanding a 40T load. For use in areas where cars and lorries have access including carriageways, hard shoulders and pedestrian areas.

Cover and frames to be increased to 150 deep when located within the Jack Harvey Construction following areas: - Trunk roads and dual carriageways - All other A roads Hessian bags filled with well packed Grade ST4 concrete Voids to be Hessian bags filled with well packed - Bus Routes filled with Grade ST4 concrete Grade ST4 concrete Voids to be filled A with Grade ST4 concrete - All other roads except residential cul-de-sacs Grade ST4 concrete capping 100mm minimum thickness Grade ST4 concrete capping 100mm TITLE 15. It is recommended that where possible the Contractor should ensure that all 150mm Grade ST4 concrete bed and surround for last metre of pipe. minimum thickness drainage is commenced at the outfall and laid into the site and not vice versa, Top of ditch Private Drainage especially where the outfall depth is shallow. Construction Details 16. Shallow pipelines may need to be protected when laid at an early stage of a Sheet 2 of 2 contract and are subject to construction traffic loadings. 450x450x50mm Paving slab laid on 25mm bed of cement mortar bed. Crown Lodge 17. In buildings up to 3 storeys the rest bend at the base of the soil stack should be Upshire 450mm below the invert of the lowest incoming drain.In buildings over 3 storeys Essex this should be increased to 750mm.In buildings over 5 storeys the ground floor Invert of existing ditch drainage connections should have their own connections to the external drain. 150mm Diameter Pipe SCALE N.T.S.

150mm concrete pipe DATE DESIGNED BY PROJECT NO. January 2016 PI 4082 SECTION A-A A BAGGED HEADWALL DETAIL DRAWING NUMBER REV. 4082-GDL-XX-D-DR-C-011 P2

Gemma Design Limited Consulting Civil & Structural Engineers Lea View House, Two Rivers Estate, Station Lane, Witney, Oxon. OX28 4LD Tel: Witney (01993) 705522/771544 E-mail: [email protected] GEMMA DESIGN Web: www.gemma-design.co.uk

STATUS PURPOSE OF ISSUE S2 PRELIMINARY

Gemma Design Ltd

Appendix G – Map 6 from the Strategic Flood Risk Assessment (SFRA) – Flood Map for surface water

Environment Agency’s Surface Run-off Flood Map

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex

Gemma Design Ltd

Appendix H– Map 3 from the Strategic Flood Risk Assessment (SFRA) – Historical Flooding Incidents

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex

Gemma Design Ltd

Appendix I – Environment Agency’s Risk of Flooding from Reservoirs Map

Gemma Design Ltd Job Title: Crown Lodge, Upshire, Essex