Triton Knoll Offshore Wind Farm Limited TRITON KNOLL

RWE Innogy UK | Triton Knoll Electrical System, Onshore Crossing Schedule

Triton Knoll Offshore Wind Farm Limited

TRITON KNOLL ELECTRICAL SYSTEM

Annex 6-1: Geology and Ground Conditions Baseline Study

April 2015

Document Reference 6.2.5.5.6.1

Pursuant to: APFP Reg. 5(2)(a)

1 RWE Innogy UK | Triton Knoll Electrical System, Geology Baseline

Application Document 6.2.5.5.6.1 Liability Annex 6-1: Geology and Ground Conditions Baseline Study In preparation of this document Triton Knoll Offshore Wind Farm Limited (TKOWFL), a joint April 2015 venture between RWE Innogy UK (RWE) and Statkraft UK, subconsultants working on behalf of TKOWFL, have made reasonable efforts to ensure Drafted By: PMSL that the content is accurate, up to date and Approved By: Kim Gauld-Clark complete for the purpose for which it was prepared. Date of April 2015 Neither TKOWFL nor their subcontractors make any Approval warranty as to the accuracy or completeness of Revision A material supplied. Other than any liability on TKOWFL or their subcontractors detailed in the Triton Knoll Offshore Wind Farm Ltd contracts between the parties for this work neither Auckland House TKOWFL or their subcontractors shall have any Great Western Way liability for any loss, damage, injury, claim, expense, Swindon cost or other consequence arising as a result of use Wiltshire, SN5 8ZT or reliance upon any information contained in or omitted from this document. T +44 (0)845 720 090 Any persons intending to use this document should F +44 (0)845 720 050 satisfy themselves as to its applicability for their I www.rweinnogy.com intended purpose. Where appropriate, the user of this document has the obligation to employ safe www.rweinnogy.com/tritonknoll working practices for any activities referred to and [email protected] to adopt specific practices appropriate to local conditions.

Triton Knoll Offshore Wind Farm Limited have been awarded EU TEN-E funding to support the development of the Triton Knoll Offshore Wind Farm Electrical System located in both UK Territorial waters and the UK’s Exclusive Economic Zone. The funding which is to be matched will support a number of surveys, engineering reports, and environmental impact assessment studies for the Triton Knoll Electrical System. The studies will form part of the formal documentation that will accompany the Development Consent Order which will be submitted to the Planning Inspectorate. The sum of €1,159,559 has been granted and the process to reclaim this funding is ongoing.

Triton Knoll Offshore Wind Farm Ltd TRITON KNOLL ELECTRICAL SYSTEM

Annex 6-1: Geology and Ground Conditions Baseline Study

80427

DECEMBER 2014

RSK GENERAL NOTES

Project No.: 80427

Title: Annex 6-1: Geology and Ground Conditions Baseline Study

Client: Triton Knoll Offshore Wind Farm Ltd, Auckland House, Great Western Way, Swindon Wiltshire, SN5 8ZT

Date: December 2014

Office: The Old School, Stillhouse Lane, Bedminster, Bristol, BS3 4EB Tel: 0117 947 1006, contact: Tony Morton

Status: Final

Author Tony Morton Technical reviewer Andrew Przewieslik

Signature Signature Date: December 2014 Date: December 2014

Project manager Tony Morton

Signature Date: December 2014

RSK Environment Limited (RSK) has prepared this report for the sole use of the client, showing reasonable skill and care, for the intended purposes as stated in the agreement under which this work was completed. The report may not be relied upon by any other party without the express agreement of the client and RSK. No other warranty, expressed or implied, is made as to the professional advice included in this report. Where any data supplied by the client or from other sources have been used, it has been assumed that the information is correct. No responsibility can be accepted by RSK for inaccuracies in the data supplied by any other party. The conclusions and recommendations in this report are based on the assumption that all relevant information has been supplied by those bodies from whom it was requested. No part of this report may be copied or duplicated without the express permission of RSK and the party for whom it was prepared. Where field investigations have been carried out, these have been restricted to a level of detail required to achieve the stated objectives of the work. This work has been undertaken in accordance with the quality management system of RSK Environment Ltd.

CONTENTS

1 INTRODUCTION ...... 2 1.2 Objective and aims ...... 2 1.3 Scope ...... 2 2 BASELINE DATA ...... 4 2.1 Data Sources ...... 4 2.2 Study area description ...... 4 2.3 Designated sites ...... 5 2.4 Superficial geology ...... 5 2.5 Hydrogeology of superficial deposits ...... 7 2.6 Solid geology...... 8 2.7 Hydrogeology of solid strata ...... 8 2.8 Potable groundwater abstractions ...... 9 2.9 Potable surface water abstraction...... 9 2.10 Radon and Ground Gas ...... 9 2.11 Mineral resources ...... 9 2.12 Environment Agency recorded landfills ...... 10 2.13 Environment Agency recorded waste sites ...... 10 2.14 Environment Agency recorded pollution incidents ...... 11 REFERENCES ...... 12

FIGURES Figure 1-1 Superficial Geology and Site Features

Figure 1-2 Solid Geology

APPENDICES Appendix 1-1 Photographs

Appendix 1-2 British Geological Survey Boreholes

Triton Knoll Offshore Wind Farm Ltd Geology and Ground Conditions Baseline Study Report no.80427

1 INTRODUCTION

1.1.1 RSK Environment Limited (RSK) was commissioned by Triton Knoll Offshore Wind Farm Limited (TKOWFL) to carry out a baseline study in support of the Environmental Impact Assessment (EIA) for the onshore element of the Triton Knoll Electrical System.

1.2 Objective and aims 1.2.1 The objective of the baseline study is to collate geological and ground conditions information pertaining to the study area to allow the identification of features that could impact or be impacted by the proposed development.

1.3 Scope 1.3.1 The scope of works for this baseline study was set out within the scoping report, dated March 2014 and comprises a desk study that includes a review of publicly available information relating to the proposed development including:

• Mapping including geological maps (both solid and drift geology), hydrogeological maps, groundwater vulnerability maps; • Publicly available borehole records held by the British Geological Survey (BGS); • An assessment of the environmental sensitivity of the study area, through a review of available geological and hydrogeological data and mapping to identify geologically designated sites; • Details of nearby pollution incidents, landfill sites and groundwater source protection zones (SPZ) obtained from the Environment Agency (EA); and • An assessment of BGS minerals data.

1.3.2 The study area is defined as comprising the application boundary plus a 100m buffer either side; features of particular significance are included where relevant to geology and ground conditions. 1.3.3 A walkover of the study area was undertaken on 23rd and 24th April 2014 to confirm the current status of the study area, surrounding land-use, the potential for contamination from previous site activity, and identify any areas of potential concern. The walkover also assisted in confirming the findings of the desk-based study and to identify any omissions.

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1.3.4 The baseline data will be used within the ES chapter and used in the assessment of potential impacts arising from the proposed development.

Triton Knoll Offshore Wind Farm Ltd 3-1 Geology and Ground Conditions Baseline Study Report no. 80427

2 BASELINE DATA

2.1 Data Sources 2.1.1 Information from the following publicly accessible websites has been reviewed to compile the baseline data presented below:

2.2 Study area description 2.2.1 The study area follows a route of approximately 60km with the landfall at Anderby Creek on the Lincolnshire coast passing south via the Intermediate Electrical Compound at NGR 552382 367600 towards Burgh Le Marsh before turning south-west to Midville, Frithville and Hedgehog Bridge, then turning south-south-west to Bicker Fen and the Substation at NGR 518956 339885. Selected photographs taken along the proposed corridor are presented in Appendix 1-1 to give an insight as to the landscape that the route follows, and particular features and photograph locations are highlighted on Figure 1-1. 2.2.2 The whole of the route is characterised by low lying relatively flat land (<5m above Ordnance Datum (aOD)) crossed by a network of roads and dikes (ditches). The current land use is principally agricultural with a number of dispersed residential settlements and occasional towns. The major settlements of Boston and Skegness are located to the south of the proposed development. A railway line connecting Boston and Skegness crosses the route at NGR 546787 361585 and NGR 542361 359365. 2.2.3 During the site visits surface water in the dikes was noted to be typically between 1m and 2m below ground level, the water levels are controlled by a series of mechanically controlled gates and pumps in strategic locations. It was noted that the roads crossing the area were often topographically slightly higher than the surrounding fields as a result of water loss through draining of organic and clayey soils beneath the fields.

Triton Knoll Offshore Wind Farm Ltd 4-1 Geology and Ground Conditions Baseline Study Report no. 80427

2.2.4 The following features were noted:

• At the proposed landfall at Anderby Creek (NGR 554853 377100) the beach is backed by a line of sand dunes vegetated with marram grass. • To the west of Anderby Creek there is an Environment Agency (EA) pumping station located approximately 400m to the south east of the route corridor at (NGR 554595 375920). • At the Intermediate Electrical Compound (NGR 552382 367600) and approximately 100m to the east of the route corridor is the Skegness Stadium used for stockcar racing. • At Bicker Fen is an existing electricity substation (NGR 519639 338600) surrounded by a number of wind turbines with the proposed Substation situated at NGR 518956 339885 on level agricultural land bounded to the west by a dike.

2.3 Designated sites 2.3.1 Natural England and the Joint Nature Conservation Committee websites were reviewed for details of geological sites of special scientific interest (SSSI) and geological conservation review sites (GCRs). 2.3.2 Two SSSI’s are recorded to the south of the landfall at Anderby Creek, and are shown on Figure 1-1:

• Chapel Point to Wolla Bank, recorded as an Earth Heritage SSSI and relates to a buried fossilised saltmarsh and forest centred on NGR 555981 374097; and • Sea Bank Clay Pits that relates to fen marsh and swamp lowland at NGR 555600 375000. 2.3.3 Of the 19 GCR sites recorded within Lincolnshire, none are located either within, or in close proximity to, the proposed development.

2.4 Superficial geology 2.4.1 BGS data shown on Figure 1-1 indicates that the proposed development is underlain by superficial deposits. Borehole logs from close to the route corridor obtained from the BGS website confirm the thickness of superficial deposits as ranging between 10m and 26m thickness. Borehole logs are included in Appendix 1-2. 2.4.2 As the route crosses the coast it passes over a narrow band of Beach and Tidal Flat Deposits. The Beach Deposits are described as shingle, sand, silt and clay; and Tidal Flat Deposits are commonly silt and clay with sand and gravel layers; with possible peat layers. Lying just to the west the proposed

Triton Knoll Offshore Wind Farm Ltd 5-1 Geology and Ground Conditions Baseline Study Report no. 80427

development crosses a narrow strip of Blown Sand, typically consisting of a fine sand. 2.4.3 The majority of the proposed development including the Intermediate Electrical Compound and Substation is underlain by Salt Marsh and Tidal Creek Deposits comprising mainly silt and clay. Along the route these are divided (BGS 1995, 1996) into two strata, the older Barroway Drove Beds and the younger Terrington Beds. In general the younger Terrington Beds lie to the south and east of the older strata. It is noted that the more recent electronic BGS data used to compile Figure 1-1 does not differentiate between these two strata. 2.4.4 Glacial Till is indicated to outcrop at the surface beneath the proposed development in a number of locations in the northern quarter of the route. In particular deposits are noted at Anderby (NGR 553800 375800) (Figure 1-1, map 1); Micklebury Hill (NGR 552500 373500 and 552000 372000) (Figure 1- 1, map 2) and Burgh le Marsh (NGR 550300 364300 and 549500 363500) (Figure 1-1, map 4). The Till is described as a diamicton usually sandy, silty clay with pebbles, but can contain gravel-rich, or laminated sand layers, in places it may underlie the younger Salt Marsh and Tidal Creek Deposits. Minor deposits of Glaciofluvial Deposits of sand and gravel are associated with the glacial Till around Micklebury Hill. 2.4.5 Peat is shown to be present beneath the route between Stickney (NGR 541300 358800) (Figure 1-1, map 7) and New Leake (NGR 536000 355700) (Figure 1-1, map 6). These deposits are described as having formed up to 3 million years ago in the Quaternary Period within a local environment previously dominated by organic accumulations. Two main lithologies may be represented: 'brushwood' (freshwater) peat and 'phragmites' (brackish water) peat; and may comprise organic-rich clays; and accumulation of wet, dark brown, partially decomposed vegetation. 2.4.6 The geological map (BGS 1996) for Skegness shows the far eastern part of the peat mass to be Nordelph Peat which is reported to contain the trunks and roots of oaks and small trees, some in situ, and woody debris from alder, birch, sallow, buckthorn and pine are common. In the more seaward areas the peat is largely composed of stems and rhizomes of sedges and reeds. In southern Fenland the peat contains thin but extensive, lenticular deposits of shell marl which formed in shallow meres within the peat fens. Generally less than 1m, but locally up to over 3m where preserved in channels. 2.4.7 National Soil Resources Institute (2013) states that:

“Lincolnshire contains a broad range of soil types. Peat is extensive around the Southern Fenland area along with interbedded marine clays and silts that have been deposited under changing conditions since the end of the last ice age. However, since the introduction of drainage measures from circa 1630 the peat in many areas has wasted to an extent that the previous underlying clays and silts have been exposed

Triton Knoll Offshore Wind Farm Ltd 6-1 Geology and Ground Conditions Baseline Study Report no. 80427

at the surface. Substantial thickness of peat therefore, are now confined to the edge of the fens or in areas that have remained undrained". 2.4.8 National Soil Resources Institute (2014) describe peat shrinkage as a result of water loss exacerbated by the agricultural drainage of the fens since the 1600s resulting in oxidation and mineralisation of peats leading to ‘untold and irreversible shrinkage’. 2.4.9 Natural England (2010) describes the soils as “Deep peaty soils (includes wasted peat)”, in addition it goes on to indicate that the soils are “Wasted peat” as a result of drainage and cultivation. 2.4.10 Grigg D (1966) describes similar conditions:

"In Lincolnshire the peat deposits are thin and interdigit with the silt deposits to the east so that there is no distinct boundary. Not only are the peats thin but their depth varies from place to place. Everywhere however they are underlain by clay. Before the peats were drained and cultivated they were certainly thicker, and may have also covered a greater area. Peat in its natural state consists largely of water, thus as the fen was progressively better drained the surface of the peats shrank; further the peat has in many places been mixed with the underlying soils". 2.4.11 Four boreholes or trial pit records referenced TF35NE1 (NGR 535060 358490) (Figure1-1, map 7), TF35NE2 (NGR 535020 358500) (Figure1-1, map 7), TFNE12 (NGR 536430 359860) (Figure1-1, map 7) and TFNE13 (NGR 536600 359850) (Figure1-1, map 7) held by the BGS are located within the peat area crossed by the route. Only one, TF35NE1 is noted to have encountered peat, with approximately 0.75m of the strata present at 7m below ground level. 2.4.12 Additional BGS borehole records in the general vicinity of the route and not within an area recorded as having peat describe peat deposits. These are likely to be part of the salt marsh and tidal creek sequences present over the greater area. Where it is described, its occurrence tends to be at greater than 2m depth, with one location (north of Burgh le Marsh) (Figure 1-1, map 4) describing peat with large oak trees. A maximum of 2.65m thickness of peat was encountered at 3m depth within a borehole at Hogsthorpe.

2.5 Hydrogeology of superficial deposits 2.5.1 The majority of the superficial deposits are classified by the EA as Unproductive Strata which are defined as drift deposits with low permeability that have negligible significance for water supply or river base flow. Both Fluvioglacial Deposits and Blown Sand, where present are considered secondary A aquifers that are permeable layers capable of supporting water supplies at a local rather than strategic scale, and in some cases forming an important source of base flow to rivers.

Triton Knoll Offshore Wind Farm Ltd 7-1 Geology and Ground Conditions Baseline Study Report no. 80427

2.6 Solid geology 2.6.1 British Geological Survey (BGS) data shown on Figure 1-2 indicates that beneath the superficial deposits is bedrock comprising a number of units of Jurassic and Cretaceous age. In general these strata dip at a very shallow angle to the east. 2.6.2 To the east of Firsby Clough at NGR 546728 361500 the superficial deposits are underlain by Cretaceous Age strata comprising from west to east the Spilsby Sandstone Formation (sandstone), Claxby Ironstone Formation, Tealby Formation, Roach Formation (mudstone and limestone), Carstone (sandstone), Red Chalk and Ferriby Chalk, the Welton Chalk Formation, and the Burnham Chalk Formation (chalk). 2.6.3 To the west of Firsby Clough at NGR 546728 361500 the bedrock strata comprise moving west to east from Bicker Fen the Oxford Clay, the West Walton Formation, the Ampthill Clay Formation and the Kimmeridge Clay of Jurassic Age. These strata generally comprise mudstones with the West Walton Formation comprising interbedded mudstone and siltstone.

2.7 Hydrogeology of solid strata 2.7.1 The Jurassic clay strata are classified by the EA as Unproductive Strata which are defined as rock deposits with low permeability that have negligible significance for water supply or river base flow. The Spilsby Sandstone Formation and Chalk strata are defined by the EA as principal aquifers with layers of rock that have high intergranular and/or fracture permeability, meaning they usually provide a high level of water storage. They may support water supply and/or river base flow on a strategic scale. 2.7.2 The Claxby Ironstone Formation, Tealby Formation, Roach Formation and Carstone are defined as secondary B aquifers which are predominantly lower permeability layers which may store and yield limited amounts of groundwater due to localised features such as fissures, thin permeable horizons and weathering. 2.7.3 According to the EA the proposed development does not lie within a groundwater SPZ. EA data shows Groundwater Vulnerability Zones associated with principal and secondary aquifers in the east of the area. Both the Spilsby Sandstone and Chalk strata are classified as principal aquifers (formerly major aquifer) beneath soils with a high leaching potential. The Carstone Formation is classified as a secondary aquifer (formerly minor aquifer) beneath soils with a high leaching potential.

Triton Knoll Offshore Wind Farm Ltd 8-1 Geology and Ground Conditions Baseline Study Report no. 80427

2.8 Potable groundwater abstractions 2.8.1 Correspondence from the EA dated 7 November 2014 (referenced AN/2014/120426/01-L01) records the presence of four private domestic groundwater abstractions and two licensed public water groundwater abstractions within 2 km of the Proposed Development Boundary. 2.8.2 The two public water groundwater abstractions (license 4/29/16/*G/0052 and 4/29/16/*G/0074) are located at approximate grid reference 551014 373988, located approximately 1.75 km west of the Proposed Development Boundary. 2.8.3 Details relating to the four private water supply records are currently unknown. 2.8.4 There are also 11 recorded deregulated licenses , however the status of these abstractions is currently unknown.

2.9 Potable surface water abstraction 2.9.1 A surface water abstraction used for potable use is located at approximate grid reference 552785, 371664 south of Hogthorpe and located approximately 760m east of the Proposed Development Boundary. 2.9.2 There are numerous surface water abstractions located within 2km of the Proposed Development Boundary along the entire alignment. These are predominantly used for general agricultural purposes (spray irrigation). A couple of recorded licenses close to Swineshead are used for process water.

2.10 Radon and Ground Gas 2.10.1 Miles et al (2007) indicate that the majority of the route is located in an area where <1% of homes are at or above the National Radiological Protection Board (NRPB) action level and therefore the risk of significant ingress of radon into structures on-site is considered low. Between 1% and 3% of homes in the area immediately adjacent to Burgh le Marsh are at or above the NRPB action level. Current advice confirms that protection measures would not be required for any permanently enclosed structure. 2.10.2 Given the anticipated ground conditions the risk associated with ground gas is considered low in accordance with BS8576.

2.11 Mineral resources 2.11.1 The Lincolnshire Minerals and Waste Local Plan (Draft Core Strategy and Development Management Policies) incorporates an Indicative Mineral Safeguarding Map. The Indicative Mineral Safeguarding Map does not show any mineral areas beneath the proposed development.

Triton Knoll Offshore Wind Farm Ltd 9-1 Geology and Ground Conditions Baseline Study Report no. 80427

2.11.2 BGS mineral resource information for Lincolnshire does not show any extant planning permissions for mineral extraction or active mineral sites within or close to, the proposed corridor. Two extraction sites noted as being inactive (including yet to be worked, worked out and/or restored site) are located to the north (Elder Cottage) and south (Sea Bank) of Anderby Creek (Figure 1- 1, map 1), both locations appear to have been worked for clay in the 1950’s to provide material for the repair of the sea wall.

2.12 Environment Agency recorded landfills 2.12.1 The EA website was consulted for the presence of landfills (authorised and historic). The search identified a single historic landfill within the proposed corridor at Field Farm, Hogsthorpe, Lincs (NGR 552912, 372190) (Figure 1-1, map 2) that took commercial and household waste between 1984 and 1994, no further details are given. 2.12.2 The following historic and authorised landfills were noted within 1km of the proposed development but are not located within the study area:

• Lowgate Farm, Lowgate Road (NGR 553438, 373339) (Figure 1-1, map 2) to the east of Mickleberry Hill (no details of wastes deposited available). • Lowgate Road, Hogsthorpe (NGR 553485, 373048) (Figure 1-1, map 2) to the south east of Mickleberry Hill took household waste. • Hogsthorpe Landfill Site (NGR 554140, 371151) (Figure 1-1, map 2), to the west of Hogsthorpe took inert, industrial, commercial and household waste from 1984 to 1994. • Rear of Claremont Road, Burgh Le Marsh (550393, 365224) (Figure 1-1, map 4), to the north of Burgh Le Marsh took inert waste. • Sykemouth Drove (NGR 523996, 342989) (Figure 1-1, map 1) to the east of Swineshead Station took household waste.

2.13 Environment Agency recorded waste sites 2.13.1 A waste treatment facility was noted at Anderby (NGR 552691 375516) (Figure 1-1, map 1) approximately 1km west of the proposed corridor. The EA website gives the permit number as 71037 issued to Anderby Metals and Plant at Sea Lane, Anderby PE24 5XW in the north east of the area. During the walkover visit there was no evidence of this facility at the location shown on the EA website. 2.13.2 A waste treatment is recorded at NGR 541447 358451. Processes recorded at this site include composting. This site is located 250m south of the proposed corridor at St Catherine’s Farm.

Triton Knoll Offshore Wind Farm Ltd 10-1 Geology and Ground Conditions Baseline Study Report no. 80427

2.14 Environment Agency recorded pollution incidents 2.14.1 The EA website was consulted for details of pollution incidents. 2.14.2 A number of pollution incidents have been noted by the EA either within or adjacent to the corridor. The majority of these relate to emissions to air or minor impact to land. There have been five incidents of note along the corridor, these are:

• Incident (No. 600375) located at NGR 542121 359094 within the route corridor at Bellwater Farm concerning the release of atmospheric pollutants and effects, recorded 28th June 2008 as a minor impact to land. • Incident (No. 396567) located at NGR 542353 358516 within the route corridor at St Catherine’s Farm concerning the release of general biodegradeable materials and wastes associated with a composting facility, recorded 6th May 2006 as a minor impact to land. • Incident (No. 636296) located at Swineshead Station (NGR 521912 342944) to the east of the corridor concerning Specific Waste materials to land, recorded 20th November 2008 as a significant impact of specific waste materials. • Incident (No. 87778) located within the corridor at Bicker Fen (NGR 519997 339097) concerning the release of sewage to surface water, recorded 12th June 2002 as a significant impact. • Incident (No. 222020) located within the corridor at Bicker Fen (NGR 519817 339191) concerning the release of organic chemicals/products to land, recorded 10th March 2004 as a major impact.

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REFERENCES

• Geology of Britain viewer available at http://www.bgs.ac.uk/discoveringGeology/geologyOfBritain/viewer.html • Environment Agency – What’s in your backyard? available at http://maps.environment- agency.gov.uk/wiyby/wiybyController?ep=maptopics&lang=_e • Natural England – SSSIs available at https://www.gov.uk/government/organisations/natural-england • UK Protected Sites available at http://jncc.defra.gov.uk/page-1 • National Soil Resources Institute (2013). Road subsidence in Lincolnshire: Soils and road condition - a report for Lincolnshire County Council. Cranfield University. • Pritchard, O; Hallett, S; Farewell, T (2014). Cracking Up in Lincolnshire. Geoscientist, Vol 24 no. 2. • Grigg D. (1966). The Agricultural Revolution in South Lincolnshire. David Grigg. Cambridge University Press. • Natural England (2010). England’s peatlands carbon storage and greenhouse gases. • Lincolnshire County Council (2013). Draft Core Strategy and Development Management Policies. Lincolnshire Minerals and Waste Local Plan. • BGS (2002). Mineral Resource Information in Support of National, Regional and Local Planning for Lincolnshire. Research Report CR/02/128N. • BGS (1996). Mablethorpe Sheet 104. Solid and Drift Geology. England and Wales 1:50,000 Provisional Series. • BGS (1995). Horncastle Sheet 115. Solid and Drift Geology. England and Wales 1:50,000 Provisional Series. • BGS (1996). Skegness Sheet 116. Solid and Drift Geology. England and Wales 1:50,000 Provisional Series. • BGS (1995). Boston Sheet 128. Solid and Drift Geology. England and Wales 1:50,000 Provisional Series. • Miles, J C H: Appleton, J D; Rees, D M; Green, B M R; Adlam, K A M; Myers, A H (2007) Indicative Atlas of Radon in England and Wales. Health Protection Agency and British Geological Survey. • BS8576:2013. Guidance on investigations for ground gas – Permanent gases and Volatile Organic Compounds (VOCs). British Standards Institute

Triton Knoll Offshore Wind Farm Ltd 12-1 Geology and Ground Conditions Baseline Study Report no. 80427

FIGURES

Triton Knoll Offshore Windfarm Ltd Geology and Ground Conditions Baseline Study Report no. 80427 552000 553000 554000 555000 556000 557000 558000

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Offshore Cable Corridor

Overlap between Offshore and Onshore Cable Corridors Below Mean High Water Springs Beach Works 379000 Area

Above Mean High Water Springs Beach Works Area

Transition Joint Bay Search Area

Temporary Construction Compound (TCC)

Permanent Access Track

Administrative Boundary (District / Borough)

Site of Special Scientific Interest

TIDAL FLAT DEPOSITS - CLAY AND SILT TFD-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

TILL, DEVENSIAN - TILLD-DMTN 378000 DIAMICTON BLOWN SAND - SAND !!!

!!! BSA-S [UNLITHIFIED DEPOSITS

!!! CODING SCHEME]

!!! BEACH AND TIDAL FLAT DEPOSITS East Lindsey District (UNDIFFERENTIATED) - BTFU-XCZS CLAY, SILT AND SAND [UNLITHIFIED DEPOSITS CODING SCHEME]

SUPERFICIAL THEME TCC 1 NOT MAPPED [FOR DIGITAL MAP USE ONLY] SUPNM-UKNOWN 1 & 2 - UNKNOWN/UNCLASSI... ENTRY

Photograph Location and Number

377000 Mineral Site

Waste Site TF57NW/28 A@ A@ Borehole/Trial Pit Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 Elder Cottage British Geological Survey (2014) Units: Meter

TF57NW/20 3 A@ Source: Global Land Cover Facility, www.landcover.org. 376000 TF57NW/12 A@ 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB

Sea Bank Rev Date Description Drn Chk App

Triton Knoll Electrical System 375000

TITLE: Figure 1-1 Superficial Geology Map 1 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Sea Bank Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) 375000 Administrative Boundary (District / Borough)

Site of Special Scientific Interest

TIDAL FLAT DEPOSITS - CLAY AND SILT TFD-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

GLACIOFLUVIAL DEPOSITS, DEVENSIAN - GFDUD-XSV SAND AND GRAVEL [UNLITHIFIED DEPOSITS CODING SCHEME]

TILL, DEVENSIAN - TILLD-DMTN DIAMICTON

Photograph Location and Number

374000 Historic Landfill

4 Mineral Site

A@ Borehole/Trial Pit

Lowgate Farm

Lowgate Road 373000 TCC 2 East Lindsey District 5

TF57SW11/A A@ Notes:- Coordinate System: British National Grid TCC 3 This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

Field Farm 372000

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB

Rev Date Description Drn Chk App Hogsthorpe Landfill Site Triton Knoll Electrical System 371000

TITLE: Figure 1-1 Superficial Geology Map 2 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Total area of land required for the Intermediate Electrical Compound, Permanent and Temporary Access Tracks, Underground Cabling and Drainage and Landscape Mitigation

HGV Access to Intermediate Electrical Compound: Section of Cable Corridor that will be used for HGV traffic during the construction of the Intermediate Electrical Compound 370000 Intermediate Electrical Compound Gas Insulated Switchgear siting boundary

Temporary Construction Compound (TCC)

Intermediate Electrical Compound, accommodating all the above ground electrical infrastructure (AGEI)

Administrative Boundary (District / Borough)

TIDAL FLAT DEPOSITS - CLAY AND SILT TFD-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

Photograph Location and Number

A@ Borehole/Trial Pit 369000

East Lindsey District 368000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 6 British Geological Survey (2014) Units: Meter

TF56NW21 A@

TCC 4

Source: Global Land Cover Facility, www.landcover.org.

367000 7 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System

366000 TITLE: Figure 1-1 TF56NW/1 Superficial Geology A@ Map 3 of 11

0 0.4 0.8

Kilometres / East Lindsey District SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

367000 7 Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

HGV Access to Intermediate Electrical Compound: Section of Cable Corridor that will be used for HGV traffic during the construction of the Intermediate Electrical Compound

Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough)

Site of Special Scientific Interest

TIDAL FLAT DEPOSITS - CLAY AND SILT TFD-XCZ [UNLITHIFIED DEPOSITS 366000 CODING SCHEME]

TILLD-DMTN TILL, DEVENSIAN - TF56NW/1 DIAMICTON A@ Photograph Location and Number

Historic Landfill

A@ Borehole/Trial Pit East Lindsey District

Rear of Claremont Road 365000 TCC 5

TCC 6

8 Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 364000 British Geological Survey (2014) Units: Meter

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB 363000 00 09/01/2015 First Draft AJ KB KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-1 9 Superficial Geology Map 4 of 11 362000

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m)

363000 Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Temporary Construction Access

Administrative Boundary (District / Borough)

TIDAL FLAT DEPOSITS - CLAY AND SILT TFD-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

TILL, DEVENSIAN - TILLD-DMTN DIAMICTON 9 TIDAL FLAT DEPOSITS, 1 - CLAY AND SILT TFD1-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME] 362000 Photograph Location and Number

A@ Borehole/Trial Pit

TF246SE 10A@

TCC 8 TCC 7 361000

TCC 9

TF46/38 A@

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter 360000

Source: Global Land Cover Facility, www.landcover.org.

East Lindsey District 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB

Rev Date Description Drn Chk App 359000

Triton Knoll Electrical System

TITLE: Figure 1-1 Superficial Geology Map 5 of 11

0 0.4 0.8

358000 Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

361000 Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough)

PEAT - PEAT PEAT-P [UNLITHIFIED DEPOSITS CODING SCHEME]

TIDAL FLAT DEPOSITS, 1 - CLAY AND SILT TFD1-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME] 360000 TF35NE12 Photograph Location and Number A@ A@ TF35NE13 Waste Site

A@ Borehole/Trial Pit

Minor Pollution Incident East Lindsey District 359000

Notes:- Coordinate System: British National Grid 358000 This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

Source: Global Land Cover Facility, www.landcover.org.

11 & 12 TF45NW2/B A@ TCC 10

02 08/04/2015 TCC & IEC Update AJ AP KB

357000 01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB

TCC 11 Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-1 Superficial Geology

356000 Map 6 of 11

Boston Borough 0 0.4 0.8 Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

11 & 12 Onshore Cable Corridor

TCC 10 Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough)

357000 TILL, DEVENSIAN - TILLD-DMTN DIAMICTON

PEAT - PEAT PEAT-P [UNLITHIFIED DEPOSITS TCC 11 CODING SCHEME] TIDAL FLAT DEPOSITS, 1 - CLAY AND SILT TFD1-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME] East Lindsey District Photograph Location and Number A@ Borehole/Trial Pit 356000

13 355000

Notes:- Coordinate System: British National Grid TCC 12 This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

TCC 13

Source: Global Land Cover Facility, www.landcover.org.

354000 14

02 08/04/2015 TCC & IEC Update AJ AP KB

TF35NE/1 01 04/03/2015 Revised PDB VA AJ KB A@ 00 09/01/2015 First Draft AJ KB KB Boston Borough Rev Date Description Drn Chk App Triton Knoll Electrical System

15 353000 TCC 14

TITLE: Figure 1-1 Superficial Geology Map 7 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough)

TILL, DEVENSIAN - TILLD-DMTN DIAMICTON

354000 14 TIDAL FLAT DEPOSITS, 1 - CLAY AND SILT TFD1-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

Photograph Location and Number

A@ Borehole/Trial Pit

15 353000 TCC 14

East Lindsey District 352000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

TCC 15 Source: Global Land Cover Facility, www.landcover.org. 351000

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB 16 & 17 TF35SW2 A@ Rev Date Description Drn Chk App

Triton Knoll Electrical System 350000

TITLE: Figure 1-1 Superficial Geology Map 8 of 11

0 0.4 0.8

Kilometres / 18 SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m) 350000 Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough) East Lindsey District TIDAL FLAT DEPOSITS, 1 TFD1-XCZ - CLAY AND SILT [UNLITHIFIED DEPOSITS 18 CODING SCHEME]

Photograph Location and Number 349000

TCC 17 TCC 16 348000

TCC 18

TCC 19 Source: Global Land Cover Facility, www.landcover.org.

Boston Borough 02 08/04/2015 TCC & IEC Update AJ AP KB 20 & 21 01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB 346000 Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-1 Superficial Geology Map 9 of 11

0 0.4 0.8 345000

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

348000 Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Administrative Boundary (District / Borough)

TIDAL FLAT DEPOSITS, 1 TFD1-XCZ - CLAY AND SILT [UNLITHIFIED DEPOSITS CODING SCHEME]

Photograph Location and Number

Historic Landfill

A@ Borehole/Trial Pit

347000 Significant Pollution Incident Boston Borough

TCC 19

20 & 21 346000

TCC 21 TCC 20

22 North Kesteven District

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 09/01/2015 First Draft AJ KB KB 344000

Rev Date Description Drn Chk App

Triton Knoll Electrical System TCC 22

TCC 23 TITLE: Figure 1-1 Superficial Geology Map 10 of 11 Sykemouth Drove 343000 0 0.4 0.8

Kilometres / TF24SW/4A SCALE: 1:20,000 @ A3 @ REV 02

A Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend: TF24SW/4A A@ Study Area (100m) Proposed Development Boundary

Onshore Cable Corridor

TCC 24a Total area of land required for the Substation Compound, Underground Cabling, Permanent and Temporary Access Tracks and Drainage and TCC 24b Landscape Mitigation Area within which permanent 6m-wide 400kV "" cable corridor will be located XXXX "" Construction and cable exclusion area - existing XXXXplanting to be retained

342000 XXXXExisting Bicker Fen National Grid Substation Compound - Extent of cabling, laydown and access Existing Western Power Distribution Substation (provided for information only)

400 kV A/C cables from Triton Knoll substation to the National Grid substation Maximum footprint of unlicensed bays required for the Triton Knoll Electrical System within the existing National Grid Bicker Fen compound

Temporary Construction Compound (TCC)

Substation compound, accommodating all the above-ground electrical infrastructure (AGEI)

Permanent Access Track

Temporary Construction Access 341000 North Kesteven District Administrative Boundary (District / Borough) TIDAL FLAT DEPOSITS, 1 - CLAY AND SILT TFD1-XCZ [UNLITHIFIED DEPOSITS CODING SCHEME]

Photograph Location and Number

TCC 25 A@ Borehole/Trial Pit

Major Pollution Incident

Significant Pollution Incident Boston Borough 340000

Source: Global Land Cover Facility, www.landcover.org.

339000 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB 25 & 26 27 & 28 00 09/01/2015 First Draft AJ KB KB

24 Rev Date Description Drn Chk App

Triton Knoll Electrical System

TCC 26

TITLE: Figure 1-1 338000 Superficial Geology Map 11 of 11

0 0.4 0.8

South Holland District Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Superficial_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Offshore Cable Corridor Overlap between Offshore and Onshore Cable Corridors

379000 Below Mean High Water Springs Beach Works Area Above Mean High Water Springs Beach Works Area Transition Joint Bay Search

Temporary Construction Compound (TCC)

Permanent Access Track Administrative Boundary (District / Borough) BURNHAM CHALK BCK-CHLK FORMATION - CHALK WELTON CHALK WCK-CHLK FORMATION - CHALK 378000

East Lindsey District

TCC 1 377000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

Source: Global Land Cover Facility, www.landcover.org. 376000

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System 375000

TITLE: Figure 1-2 Bedrock Geology Map 1 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) 375000 Administrative Boundary (District / Borough) BURNHAM CHALK BCK-CHLK FORMATION - CHALK WELTON CHALK WCK-CHLK FORMATION - CHALK 374000 373000 TCC 2 East Lindsey District

Notes:- Coordinate System: British National Grid TCC 3 This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter 372000

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System 371000

TITLE: Figure 1-2 Bedrock Geology Map 2 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor Total area of land required for the Intermediate Electrical Compound, Permanent and Temporary Access Tracks, Underground Cabling and Drainage and Landscape Mitigation HGV Access to Intermediate Electrical Compound: Section of Cable Corridor that 370000 will be used for HGV traffic during the construction of the Intermediate Electrical Compound Intermediate Electrical Compound Gas Insulated Switchgear siting boundary Temporary Construction Compound (TCC) Intermediate Electrical Compound, accommodating all the above ground electrical infrastructure (AGEI) Administrative Boundary (District / Borough) FERRIBY CHALK FYCK-CHLK FORMATION - CHALK WELTON CHALK 369000 WCK-CHLK FORMATION - CHALK CARSTONE CA-SDST FORMATION - SANDSTONE CLAXBY IRONSTONE FORMATION, TEALBY FORMATION AND ROACH FORMATION CITR-MDLM (UNDIFFERENTIAT... - MUDSTONE AND East Lindsey District LIMESTONE, INTERBEDDED 368000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

TCC 4

Source: Global Land Cover Facility, www.landcover.org. 367000

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System

366000 TITLE: Figure 1-2 Bedrock Geology Map 3 of 11

0 0.4 0.8

Kilometres / East Lindsey District SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend: 367000 Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor HGV Access to Intermediate Electrical Compound: Section of Cable Corridor that will be used for HGV traffic during the construction of the Intermediate Electrical Compound Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) FERRIBY CHALK FYCK-CHLK FORMATION - CHALK 366000 CARSTONE CA-SDST FORMATION - SANDSTONE CLAXBY IRONSTONE FORMATION, TEALBY FORMATION AND ROACH FORMATION East Lindsey District CITR-MDLM (UNDIFFERENTIAT... - MUDSTONE AND LIMESTONE, INTERBEDDED

SPILSBY SANDSTONE SYS-SDST FORMATION - SANDSTONE 365000 TCC 5

TCC 6

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 364000 British Geological Survey (2014) Units: Meter

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB 363000 00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-2 Bedrock Geology Map 4 of 11 362000

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

363000 Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC)

Temporary Construction Access Administrative Boundary (District / Borough) CLAXBY IRONSTONE FORMATION, TEALBY FORMATION AND ROACH FORMATION CITR-MDLM (UNDIFFERENTIAT... - MUDSTONE AND LIMESTONE, INTERBEDDED 362000 SPILSBY SANDSTONE SYS-SDST FORMATION - SANDSTONE KIMMERIDGE CLAY KC-MDST FORMATION - MUDSTONE

TCC 8 TCC 7 361000

TCC 9

Source: Global Land Cover Facility, www.landcover.org.

East Lindsey District 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App 359000

Triton Knoll Electrical System

TITLE: Figure 1-2 Bedrock Geology Map 5 of 11

0 0.4 0.8

358000 Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

361000 Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) KIMMERIDGE CLAY KC-MDST FORMATION - MUDSTONE 360000

East Lindsey District 359000

Source: Global Land Cover Facility, www.landcover.org.

TCC 10

02 08/04/2015 TCC & IEC Update AJ AP KB

357000 01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

TCC 11 Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-2 Bedrock Geology

356000 Map 6 of 11

Boston Borough 0 0.4 0.8 Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

TCC 10 Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) 357000 KIMMERIDGE CLAY KC-MDST FORMATION - MUDSTONE TCC 11

East Lindsey District 356000 355000

TCC 13

Source: Global Land Cover Facility, www.landcover.org. 354000

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB Boston Borough Rev Date Description Drn Chk App Triton Knoll Electrical System 353000 TCC 14

TITLE: Figure 1-2 Bedrock Geology Map 7 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) KIMMERIDGE CLAY

354000 KC-MDST FORMATION - MUDSTONE AMPTHILL CLAY AMC-MDST FORMATION - MUDSTONE 353000 TCC 14

East Lindsey District 352000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

TCC 15 Source: Global Land Cover Facility, www.landcover.org. 351000

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System 350000

TITLE: Figure 1-2 Bedrock Geology Map 8 of 11

0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m) 350000 Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) East Lindsey District KIMMERIDGE CLAY KC-MDST FORMATION - MUDSTONE AMPTHILL CLAY AMC-MDST FORMATION - MUDSTONE 349000

TCC 17 TCC 16 348000

TCC 18

TCC 19 Source: Global Land Cover Facility, www.landcover.org.

Boston Borough 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB 346000 Rev Date Description Drn Chk App

Triton Knoll Electrical System

TITLE: Figure 1-2 Bedrock Geology Map 9 of 11

0 0.4 0.8 345000

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

348000 Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor

Temporary Construction Compound (TCC) Administrative Boundary (District / Borough) AMPTHILL CLAY AMC-MDST FORMATION - MUDSTONE WEST WALTON FORMATION - WWB-MDSI MUDSTONE AND SILTSTONE 347000

Boston Borough

TCC 19 346000

TCC 21 TCC 20

North Kesteven District

Source: Global Land Cover Facility, www.landcover.org.

02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB 344000

Rev Date Description Drn Chk App

Triton Knoll Electrical System TCC 22

TCC 23 TITLE: Figure 1-2 Bedrock Geology Map 10 of 11

343000 0 0.4 0.8

Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Legend:

Study Area (100m)

Proposed Development Boundary

Onshore Cable Corridor TCC 24a Total area of land required for the Substation Compound, Underground TCC 24b Cabling, Permanent and Temporary Access Tracks and Drainage and Landscape Mitigation

"" Area within which permanent 6m-wide 400kV cable corridor will be located "" 342000 XX Construction and cable exclusion area - existing planting to be retained XX Existing Bicker Fen National Grid Substation Compound - Extent of cabling, laydown and access Temporary Construction Compound (TCC) Substation compound, accommodating all the above-ground electrical infrastructure (AGEI) Permanent Access Track

Temporary Construction Access Administrative Boundary (District / Borough)

341000 AMPTHILL CLAY AMC-MDST FORMATION - North Kesteven District MUDSTONE WEST WALTON FORMATION - WWB-MDSI MUDSTONE AND SILTSTONE OXFORD CLAY TCC 25 OXC-MDST FORMATION - MUDSTONE

Boston Borough 340000

Notes:- Coordinate System: British National Grid This map contains data from Projection: Transverse Mercator the following sources- Datum: OSGB 1936 British Geological Survey (2014) Units: Meter

Source: Global Land Cover Facility, www.landcover.org.

339000 02 08/04/2015 TCC & IEC Update AJ AP KB

01 04/03/2015 Revised PDB VA AJ KB

00 19/12/2014 First Draft AJ AP KB

Rev Date Description Drn Chk App

Triton Knoll Electrical System

TCC 26

TITLE: Figure 1-2 338000 Bedrock Geology Map 11 of 11

0 0.4 0.8

South Holland District Kilometres / SCALE: 1:20,000 @ A3 REV 02 Document Path: P:\08-International\P80427 - Triton Knoll cable route\05 GRAPHICS\05.4 GIS\ES_Geology_Bedrock_20150408.mxd

Triton Knoll Offshore Windfarm Ltd Geology and Ground Conditions Baseline Study Report no. 80427 Triton Knoll Offshore Wind Farm Ltd

APPENDIX A SITE PHOTOGRAPHS

PHOTOGRAPHIC LOG

Photo no. Date: 1 23 April 2014

Photo taken from NGR: 554807,377160

Description: Near Anderby Creek. Looking north west along coast over sand dunes backing beach. Marram grass providing stabilisation.

Photo No. Date: 2 23 April 2014

Photo taken from NGR: 554807,377160

Description: Near Anderby Creek. Looking south west from dunes inland over agricultural land. Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 3 23 April 2014

Photo taken from NGR: 554561,376052

Description: Near Anderby Creek. EA Pumping Station

Photo No. Date: 4 23 April 2014

Photo taken from NGR: 552848,373822

Description: View south towards Micklebury Hill, wheat crop in foreground

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 5 23 April 2014

Photo taken from NGR: 552795,372627

Description: Low lying agricultural land to the west of Hogsthorpe

Photo No. Date: 6 23 April 2014

Photo taken from NGR: 552002,367647

Description: Agricultural buildings near proposed intermediate compound

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 7 23 April 2014

Photo taken from NGR: 552749,366907

Description: Looking north towards Skegness Stadium over wheat field and proposed location for the intermediate compound

Photo No. Date: 8 23 April 2014

Photo taken from NGR: 551016,364002

Description: Agricultural fields and minor road near Burgh le Marsh. Note drainage ditch and standing water.

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 9 23 April 2014

Photo taken from NGR: 547618,362052

Description: Typical view of agricultural land and oil seed rape crop

Photo No. Date: 10 23 April 2014

Photo taken from NGR: 546215,361482

Description: View along the Steeping River near Thorpe Culvert

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 11 23 April 2014

Photo taken from NGR: 538452,357192

Description: View north along Hobhole Drain near Midville

Photo No. Date: 12 23 April 2014

Photo taken from NGR: 538452,357192

Description: View east near Midville over de- graded peat terrain

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 13 23 April 2014

Photo taken from NGR: 535879,355482

Description: Agricultural land south of Stickney

Photo No. Date: 14 23 April 2014

Photo taken from NGR: 534386,353882

Description: View over Stonebridge Drain near Northlands

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 15 23 April 2014

Photo taken from NGR: 532735,352947

Description: Agricultural land near Hakerley Bridge

Photo No. Date: 16 23 April 2014

Photo taken from NGR: 530673,350447

Description: Agricultural land near Frithville

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 17 23 April 2014

Photo taken from NGR: 530673,350447

Description: Agricultural land near Frithville

Photo No. Date: 18 23 April 2014

Photo taken from NGR: 530057,349297

Description: Arisings from drain clearance near Gypsey Bridge

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 19 23 April 2014

Photo taken from NGR: 526749,347292

Description: Agricultural land near Langrick Bridge

Photo No. Date: 20 23 April 2014

Photo taken from NGR: 525206,346107

Description: Pasture near Hedgehog Bridge

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 21 23 April 2014

Photo taken from NGR: 525206,346107

Description: Arable land near Hedgehog Bridge. Note above ground tank (use not known)

Photo No. Date: 22 23 April 2014

Photo taken from NGR: 523493,345322

Description: Clay Dike on Algarkirk Fen

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 23 23 April 2014

Photo taken from NGR: 521220,343407

Description: Agricultural land near Swineshead Bridge

Photo No. Date: 24 23 April 2014

Photo taken from NGR: 519917,338722

Description: Agricultural land near Bicker Fen

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 25 23 April 2014

Photo taken from NGR: 519917,338722

Description: Existing sub station near Bicker Fen, note wind turbines in the background

Photo No. Date: 26 23 April 2014

Photo taken from NGR: 519569,339337

Description: Access road to wind turbines near Bicker Fen

Triton Knoll Offshore Wind Farm Ltd

Photo No. Date: 27 23 April 2014

Photo taken from NGR: 519917,338722

Description: View over area proposed as new substation near Bicker Fen. South Forty Foot Drain in background

Photo No. Date: 28 23 April 2014

Photo taken from NGR: 519917,338722

Description: View over area proposed as new substation near Bicker Fen

APPENDIX 1-2 BRITISH GEOLOGICAL SURVEY BOREHOLE RECORDS

Triton Knoll Offshore Windfarm Ltd Geology and Ground Conditions Baseline Study Report no. 80427