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Environmental and Geological Consultants

Merrington House, Merrington Lane Industrial Estate, Spennymoor, Co Durham, DL16 7UT

Tel: 01388 420633 Fax: 01388 819705 Web: www.fwsconsultants.com

DIRECTORS: F W Smith PhD, FIMMM, CEng, CSci. R Izatt-Lowry BSc(Hons), MSc, MIMMM, CEng, CGeol, FGS. CONSULTANTS: J P L Dearlove PhD, CGeol, FGS..

D Breckon BSc, MCIHT, FGS. M Lakey BSc(Hons), MSc, MCIWEM, MCIEEM. C P Bell BSc, MSc, FGS. C M Miller BSc(Hons), MSc, CGeol, FGS. L Armstrong BSc(Hons), FGS. J Cooke MSci(Hons), FGS. T E Dale BSc(Hons), FGS. K Wells BSc(Hons), FGS. R N Cahill BSc(Hons), FGS.

FWS Consultants Ltd

Company Registration No: 3944252

PHASE 1 ENVIRONMENTAL DESK STUDY AND HYDROGEOLOGICAL ASSESSMENT OF THE LADY CROSS PLANTATION INTERMEDIATE

SHAFT SITE FOR THE TUNNELLED MATERIAL TRANSPORT SYSTEM

CLIENT:

York Potash Ltd 7-10 Manor Court Manor Garth SCARBOROUGH YO11 3TU

1433AmtsOR11/March 2014

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________________________________________________________________________________________________________________ March 2014 1433AmtsOR11 - Phase 1 Desk Study, Lady Cross Plantation

C O N T E N T S Page

1 INTRODUCTION ............................................................................................................................................. 1

1.1 General Background .................................................................................................................................. 1

1.2 Objectives .................................................................................................................................................. 1

1.3 Sources of Information .............................................................................................................................. 1

2 SITE DESCRIPTION ........................................................................................................................................ 2

2.1 Location and Site Features ........................................................................................................................ 2

2.2 Historical Development of the Sites .......................................................................................................... 3

2.3 Additional Information .............................................................................................................................. 4

3 ENVIRONMENTAL SETTING ....................................................................................................................... 4

3.1 Geology ..................................................................................................................................................... 4

3.1.1 Made Ground and Superficial Geology .......................................................................................... 4

3.1.2 Solid Geology ................................................................................................................................. 4

3.2 Hydrology .................................................................................................................................................. 5

3.3 Hydrogeology ............................................................................................................................................ 6

3.4 Licensed Authorisations ............................................................................................................................ 8 3.5 Landfills, Waste Treatment and Transfer Sites ......................................................................................... 8

3.6 Health and Safety Executive/Planning Department Information ............................................................... 8

3.7 Garages and Fuel Stations ......................................................................................................................... 8

3.8 Radon. ........................................................................................................................................................ 8

3.9 Flooding ..................................................................................................................................................... 8

3.10 Ecological Receptors ................................................................................................................................. 8

4 MINERAL EXTRACTION ............................................................................................................................... 9

4.1 Coal Mining ............................................................................................................................................... 9

4.2 Quarrying ................................................................................................................................................... 9

4.3 Mineral Mining .......................................................................................................................................... 9

5 DEVELOPMENT PROPOSALS LADY CROSS PLANTATION AREA ....................................................... 9

6 ENVIRONMENTAL ASSESSMENT AND CONCEPTUAL SITE MODEL ............................................... 11

6.1 Approach to Contamination Risk Assessment ......................................................................................... 11

6.2 Conceptual Site Model ............................................................................................................................ 11

6.3 Source Characterisation ........................................................................................................................... 12

6.4 Pathway Characterisation ........................................................................................................................ 12 6.5 Receptor Characterisation ........................................................................................................................ 13

6.6 Qualitative Environmental Risk Assessment ........................................................................................... 15

6.6.1 Human Health .............................................................................................................................. 15

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6.6.2 Property ........................................................................................................................................ 16

6.6.3 Controlled Waters ........................................................................................................................ 16

7 ENGINEERING ASSESSMENT .................................................................................................................... 17

7.1 Environmental Considerations for the Proposed Development ............................................................... 17

7.2 Development Considerations ................................................................................................................... 18 7.2.1 Shaft and Associated Buildings .................................................................................................... 18

7.2.2 Mineral Waste Facilities ............................................................................................................... 18

7.2.3 Tunnel Alignment ........................................................................................................................ 18

8 RECOMMENDATIONS ................................................................................................................................. 19

9 REFERENCES ................................................................................................................................................ 20 DRAWINGS 1 DRAWING 2319.LCP-SK01, ESTELL WARREN - POTENTIAL AMTS ACCESS POINTS 2 DRAWING 1433AmtsOD27 – HYDROLOGICAL AND HYDROGEOLOGICAL FEATURES OF THE

LADY CROSS PLANTATION SITE 3 DRAWING 1433Amts-OD28 – ENVIRONMENTAL CONSTRAINTS ON THE LADY CROSS

PLANTATION SITE 4 DRAWING 1433AmtsOD29 – GEOLOGICAL MAP OF THE LADY CROSS PLANTATION SITE 5 DRAWING 1433AmtsOD30 – SCHEMATIC CROSS SECTION OF EXPECTED GEOLOGY AT THE

LADY CROSS PLANTATION SITE 6 DRAWING 1433 AmtsOD31 - SUPERFICIAL AQUIFER DESIGNATION EXTRACT FROM

ENVIROCHECK REPORT 7 DRAWING 1433 AmtsOD32 – MINED MINERALS PLAN EXTRACT FROM BGS MINING PLANS

PORTAL APPENDICES 1 RECENT AND HISTORICAL OS MAPS 2 LANDMARK ENVIROCHECK SEARCH REPORTS 3 WALKOVER SURVEY RECORD SHEET 4 PRINCIPLES OF ENVIRONMENTAL RISK ASSESSMENT

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PHASE 1 ENVIRONMENTAL DESK STUDY AND HYDROGEOLOGICAL ASSESSMENT OF THE LADY CROSS PLANTATION INTERMEDIATE

SHAFT SITE FOR THE TUNNELLED MATERIAL TRANSPORT SYSTEM

1 INTRODUCTION

1.1 General Background

FWS Consultants Ltd (FWSC) was instructed by York Potash Ltd (YP) to undertake a Phase 1 Environmental Desk Study and hydrogeological assessment of three potential intermediate shaft sites for the proposed tunnelled material transport system between the mine site near Whitby to the port facility at Wilton. The three proposed intermediate shaft sites are located at Tocketts Lythe site in the north, Lockwood Beck – Stanghow Hall site in the central part of the route corridor and Lady Cross Plantation site in the south.

This desk study report provides details of the environmental, geological and hydrogeological conditions determined at the Lady Cross Plantation Site and presents environmental assessment of the proposed development in respect to the hydrogeological receptors identified (Drawing 1433AmtsOD27).

1.2 Objectives

The objectives of the desk study were to:-

• determine the past and present uses of the site and immediate surrounding area;

• assess the geological and hydrogeological setting of the site;

• provide comment on the mining instability risk to the development;

• provide a qualitative contamination risk assessment, with specific consideration of the impacts on the development and hydrogeological receptors;

• provide preliminary comment on environmental and geotechnical considerations for the proposed development.

1.3 Sources of Information

The following sources of information were utilised in the preparation of this report:-

i) Ordnance Survey Maps

SHEET SCALE DATES Yorkshire 1:10,560 1853, 1895, Yorkshire 1:2,500 1894, 1913, Ordnance Survey Plan 1:10,000 1958, 1976,1976-1979 Ordnance Survey Plan 1:2,500 1972, 1973 Additional SIMs 1:2,500 1972 10K Raster Mapping 1:10,000 2006, 2013 Large-Scale National Grid Data 1:2500 1995, 1996

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The historical Ordnance Survey (OS) maps are provided in Appendix 1.

ii) British Geological Survey

SHEET SCALE DATE Egton (Sheet 43) Solid and Drift Edition 1:50,000 1992

iii) Envirocheck Report

The Envirocheck report is included in Appendix 2. iv) Site Walkover

The site walkover conducted on 13 February 2014. Details are included in Appendix 3. Since the date of the walkover the site boundaries have been altered and therefore the original walkover includes the Egton Low Moor and Coopers Farm areas which are now not included in the development boundary.

2 SITE DESCRIPTION

2.1 Location and Site Features

Lady Cross Plantation is located to the south of the A171, approximately 1.1 km northeast of Egton.

The site has an irregular shape and is centred on approximate National Grid Reference 481518, 507776. It has a total area of 40.5 ha.

It comprises two large fields that are surrounded and separated by woodland. The northern field is rough grazing land with a small group of coniferous trees in the centre that has been split into small fields bounded by wire fences. The southern field is grassland and rough grazing. The woodland on the site is a mixture of dense coniferous and deciduous trees. The boundaries of the fields are very wet and contain areas of reeds and marsh grass. A large shed is found on the northeastern boundary of the northern field.

The site has a maximum elevation of around 218 m AOD in the north and slopes down by 15 to 20 m to the south. The site is relatively flat to slightly undulating.

Adjacent to the west and southwest of the site is undeveloped farmland. A coniferous plantation and Lady Cross Caravan Park border the site to the north and east. A ‘B’ road between from the A171 and the village of Egton is aligned adjacent to the eastern boundary of the site.

Access to the site is available through two gates just off the Egton Road. Access to the northern field is made through the southern field. Tipped material is found by the northern concrete access track in the east of Lady Cross Plantation consisting of spoil, rock, brick, plastic pipe, ceramics, garden waste, branches and wood chippings. No odours were noted (Drawing 1433AmtsOD28).

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2.2 Historical Development of the Sites

The historical development of the site was established from examination of historical Ordnance Survey maps included in Appendix 1. Lady Cross Plantation has consisted of woodland plantations and undeveloped agricultural land since 1853. No major developments have been undertaken on the site. The location of previous uses with the potential to cause development constraints are detailed in Table 1, and shown in (Drawing 1433AmtsOD28).

TABLE 1:- PRINCIPAL LAND USES IDENTIFIED

DATE ONSITE

OFFSITE

1853 • The site comprises undeveloped

land. • Several tracks are shown to cross

the site.

• A road runs southwest-northwest adjacent to the eastern boundary of the site.

• A road is located 250 m north of the site orientated east-west.

• A sandstone quarry is located 250 m to the west site and 800 m east of the site.

• A racecourse is indicated 300 m southwest of the site.

• A stream is located on the southeast boundary of the site draining south

1895 • The site is shown to comprise a plantation of coniferous trees.

• A single track is shown in the centre of the site orientated north-south.

• Egton Low Moor is located to the east, which comprises undeveloped heathland and a plantation of coniferous trees.

• Land adjacent to the southwest and west comprises heathland, while the coniferous plantation extends north of the site boundary.

• Several residential dwellings are located between 250 and 500 m to the southwest of the site.

• A disused Brick Works is located 600 m southwest of Lady Cross Plantation.

• Sandstone quarry to the west is no longer indicated. • Racecourse is no longer present.

1958 • Northern section of the site is now heathland.

• Egton Moor Plantation is no longer present. • Land to the north of the site is now heathland

1972 • The site now comprises a mixture of coniferous trees and heathland.

• The track in the centre of the site is now a footpath.

• Land adjacent to the west of the site is shown as agricultural land with field boundaries.

• A water issue discharges a stream that drains south on the southwest site boundary.

• Land to the north and east of the site is a mixture of coniferous trees and heathland.

• A small quarry is located 200 m west of the site. 1996 • No significant changes • Lady Cross Plantation Caravan Park is located

adjacent to the northeast boundary of the site. 2006 • Two large areas of forest have

been cleared from the middle of the site.

• A rectangular building is located by the northeastern boundary of the site.

• A pond is located 100 m from the northern boundary of the site.

• Two surface water issues are located on the southern boundary of the site.

2013 • There is a change in the layout of the wooded areas on the site.

• No significant changes.

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2.3 Additional Information

A number of deep mineral exploration boreholes have been drilled within 1 km of the site in the 1960s and 1970s by Whitby Potash and Armour Chemicals to depths of 1350 to 1375 m below surface, as listed below and shown in Drawing 1433AmtsOD28. It is unknown if any of the wells were used for brining activities.

• Borehole NZ80NW10 Egton A13 (1963).

• Borehole NZ80NW17 Egton Low Moor A15A (1965)

• Borehole NZ80NW22 Whitby Potash WP5 (1977)

• Borehole NZ80NW11 Sleights A14 (1965)

• Borehole NZ80NW2 Egton A4 (1962)

In addition to the above, a recent investigation in 2013 by York Potash Ltd includes pipeline borehole BH 26P, located 375 m to the northeast of the site at the junction of the A171 and the Eden House track.

3 ENVIRONMENTAL SETTING

3.1 Geology

3.1.1 Made Ground and Superficial Geology

Made Ground The historical maps show that the only development on site has been a building in the northwest corner of the northern field, shown on the 2006 map and, as such no significant made ground is expected on the site.

Natural Drift Deposits Published information (Ref. 1) indicates that the western part of the site is underlain by cohesive Glacial Till and the eastern half by granular glacial sands and gravels (Drawing 1433AmtsOD31). Fugro pipeline investigation BH 26P located 375 m to the northeast of the site indicates 0.9 m drift deposits comprising soft to firm sandy clayey gravelly silt overlying sandstone bedrock.

3.1.2 Solid Geology

In general the strata underlying the site has a gentle dip to the southwest.

The British Geological survey plan (Ref. 1 and Drawing 1433AmtsOD29) indicates the site is underlain by Long Nab Member of the Scalby Formation which comprises sandstone siltstone and mudstone. Beneath the Scalby and down to the Redcar Mudstone the following geological sequence is expected:-

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• Scarborough Formation (10 to 15 m thick) comprising mudstone and sandstone;

• Cloughton Formation (approximately 55 m thick) comprising sandstone, mudstone and thin coals;

• Eller Beck Formation (0 to 5 m thick) comprising ironstone and sandstone;

• Saltwick Formation (30 m thick) comprising sandstone mudstone and thin coals;

• Dogger Formation (0 to 5 m thick) comprising sandstone and ironstone;

• Whitby Mudstone Formation (80 to 93 m thick) comprising pyritic mudstone with limestone concretions and bituminous mudstone;

• Cleveland Ironstone Formation (20 to 35 m thick), comprising mudstone with ironstone beds. Information from the Armour boreholes A13 and A4 indicate that this formation is at an elevation of around -5 to -25 m AOD;

• Staithes Sandstone Formation (22 to 40 m thick) comprising sandstone indicated at an elevation of -40 to -55 m AOD;

• Redcar Mudstone Formation (230 to 275 m thick in total) comprises three units; the Banded Ironstone and Pyritous Shales (approximately 85 m thick), the Siliceous Shales (approximately 50 m thick) and the Calcareous Shales (approximately 105 m thick). It is indicated at an elevation of -80 to -90 m AOD.

3.2 Hydrology

A review of Environment Agency information obtained from the Envirocheck report and information gathered from conducting a site walkover has shown that there are the following surface water features located within the site boundary (Drawing 1433AmtsOD27).

• A stream flows through the woods on the east side of the southern field (A) from the north and exits the site through a culvert under the Egton Road in the southeast. This issues to a tertiary river that flows southeast away from the site. A plastic pipe discharges a very small flow of water into this stream at the northeast corner of the site (B) and is thought to be associated with the sewage discharge licence from Lady Cross Caravan Park. Two other pipes, one plastic and one concrete, discharge a strong flow of clear water into this stream by the boundary of the field and the woodland in the southeast corner (C).

• A road ditch runs the length of the Egton Road on the eastern boundary of the site (D).

• A strong flow of water discharges from a concrete culvert on the southern boundary of the site (E) which feeds a tertiary river that drains south. Water also

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flows into this watercourse at this location from an area of boggy/flooded ground in the adjacent woodland.

Water features that are located out with the site boundary include:-

• A wet shallow valley with abundant water pants is located 415 m northeast of the site (F). This is located in the lowest area of Egton Low Moor and collects surface water draining from the moor land. The water collects and drains south in a tertiary river.

• An area of wet/saturated ground is located 330 m to the northeast (G). Water from this area feeds a tertiary river that drains south, 140 m east of the site, which collects in a pond/boggy area, by the entrance track to Coopers Farm, before entering a culvert.

• A spring/issue (possibly several) discharges water (H) in an area of an historic quarrying 770 m from the site. This feeds a large area of boggy/marshy ground with abundant reeds and marsh grass. Water collects from this area and forms a tertiary river flowing south from the site.

• Water collects in a tertiary river 430 m east of the site (I) by Coopers Farm North that flows south in a tertiary river.

• Four issues are located within 400 to 600 m of the north of the site, on the northern side of the A171 (J), which feed tertiary rivers that drain north.

• A pond is located 100 m north of Lady Cross Plantation that feeds a tertiary river that flows to the south around 50 to 100 m west of the site (K).

• There is no GQA data within 2 km of the site.

There are six discharge consents relating to two different locations. The first is located in the east of the site and is related to a sewage and waste combined discharge to a stream for the Lady Cross Plantation Caravan Park. Four consents relating to an old sewage soakaway discharge for the Lady Cross Plantation Caravan Site have been revoked. The second location relates to a soakaway sewage discharge for a proposed building on Coopers Farm Site approximately 250 m to the east of the site.

There are no surface water abstractions within 1 km of the site.

There have been three pollution incidents to controlled waters within 350 m of the south of the site, none of which are related to onsite pollution. No other pollution incidents to controlled waters have been noted within 700 m of the site. There are no enforcement and prohibition notices, prosecutions relating to controlled waters or substantiated pollution incident register within 1 km of the site.

3.3 Hydrogeology

The Scalby Formation that underlies the site is classified as a Secondary A Aquifer (Ref. 2), with the overlying granular drift deposits in the eastern half of the site

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classified as Secondary A Aquifer. The cohesive Glacial Till in the west of the site is classified as unproductive strata.

There are three springs and one well located within 400 to 650 m of the south and west of the site (L). The closest of these is a well and a spring located approximately 400 m south of the site to the east of The Green farm. Another spring is recorded at Eden House 1000 m to the northeast of the site.

There are no groundwater abstractions recorded within the site boundary. There are four groundwater abstractions recorded between 500 and 1500 m of the site:-

• An abstraction from a spring (M) in the Jurassic Sandstone at Duns Bog Farm is located 550 m northeast of the site, which is utilised for general farming and domestic purposes.

• There are two permits associated with an abstraction (N) from a spring in sands and gravels 670 m southeast of the site by Lamplands Farm. The most recent of these permits began in 2001 and is utilised for general farming and domestic purposes.

• An abstraction from a spring (O) in the Jurassic Sandstone at Newbiggin Hall located 1000 m to the east of the site. This is utilised for general farming and domestic purposes.

• There are four permits associated with an abstraction from a spring in the Ravenscar Group by Topstone Farm, 1400 m east of the site. The most recent permit began in 2001 and is a private water undertaking and general farming and domestic purposes.

Based on the elevation and inferred geology for the groundwater discharges observed onsite:-

• The groundwater source to the two issues at C is likely from groundwater in the granular glacial sands and gravels.

• The groundwater source to issue E could be from the Scalby Formation, or from groundwater in the granular glacial sands and gravels.

• The groundwater source to the spring/issue (H) could be from Cloughton or Saltwick Formation.

• The groundwater source to the four issues (J) north of the site could be from the Scalby, Scarborough and Cloughton Formations, or from groundwater in the granular glacial sands and gravels.

• The groundwater source to the two springs located to the west of the site could be from Scalby Formation.

• The groundwater source to the spring and the well by The Green farm could be from the Cloughton Formation, or from groundwater in the granular glacial sands and gravels.

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• The groundwater source to the spring at Eden House could be from the Cloughton Formation, or from groundwater in the granular glacial sands and gravels.

A groundwater Source Protection borehole is located 1420 m east of the site at Topstones Farm and the Source Protection Zone II extends to 1170 m to the east of the site.

The east and north of the site has a soil groundwater vulnerability status classification of Minor Aquifer Low. A narrow strip in the north of the site is classified as Minor Aquifer High (3).

3.4 Licensed Authorisations

There are no recorded Integrated Pollution Prevention and Control (IPPC) authorisations, Integrated Pollution Control (IPC) consents or Local Authority Pollution Prevention and Control (PPC) permit entry within 1 km of the site.

3.5 Landfills, Waste Treatment and Transfer Sites

There are no recorded Historical Landfill Sites, BGS Recorded Landfill Sites, Local Authority Recorded Landfill Sites, Registered Landfill Sites, Registered Waste Transfer Sites, or Licensed Waste Management facilities on or within 1 km of the site.

3.6 Health and Safety Executive/Planning Department Information

There are no recorded sites that are subject to the Control of Major Accident Hazards (COMAH) Regulations 1999, or recorded hazardous substance consents, or installations handling hazardous substances, in accordance with the Notifications of Installations Handling Hazardous Substances [Amendment] Regulations (NIHHS) 2002, within 1 km of the site.

3.7 Garages and Fuel Stations

There are no fuel stations on the site. There is one recorded trade directory entry 328 m southeast of the site that relates to an agricultural engineers at Newstead Farm, Egton. No fuel station entries are recoded within 1 km of the site in the Envirocheck report.

3.8 Radon

Current guidance (Ref. 3) on protective measures for new buildings indicates that the site falls within a lower probability area for radon protection measures where less than 1% of homes are above the action level.

3.9 Flooding

The site is indicated to be outside the area of flood risk and at no risk of flooding.

3.10 Ecological Receptors

The site is within the North York Moors National Park. There are, however, no Sites of Special Scientific Interest, Adopted Green Belt, Nature Reserves, Special Scientific

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Interest, Special Area of Conservation, Nitrate Vulnerable Zones or Special Protection Areas within 1 km.

4 MINERAL EXTRACTION

4.1 Coal Mining

The site is not within an area of coal mining.

4.2 Quarrying

There are two BGS recorded mineral sites located within 600 m west of the site that quarried sandstone from the Long Nab Member but have now ceased to operate.

4.3 Mineral Mining

There are no recorded mineral workings within the site boundaries. There are six ironstone mines located around 2.2 km southeast of the site by Grosmont in the Esk Valley which were worked between 1836 and 1908. A plan obtained from the BGS Mining Plans Portal (Drawing AmtsOD32) indicates that the working areas of these mines terminate 950 m southeast of the site and that the site is out with an area of mined minerals.

Man-made cavities are recorded 765 m southwest of the site from the mining of potash. It is assumed that this entry relates to potash solution mining at borehole Eskdale 8 (1952).

5 DEVELOPMENT PROPOSALS LADY CROSS PLANTATION AREA

It is expected that the proposed intermediate shaft site will include a 9.6 m diameter shaft to a depth of around 350 mbgl, associated buildings and infrastructure, and a landscaped mining waste facility designed to accommodate the shaft and tunnel arisings. The potential layout plan for the shaft and spoil arisings are shown in Drawing 2319.LCP-SK01.

Shaft Development

A shaft is to be constructed in the southeast of the site close to wooded eastern boundary, to provide access to the tunnel boring machine to create the southern tunnel section to the mineral transport system between the Mine at Dove’s nest and the port at Wilton.

The upper “head frame” section for the shaft will be taken down to a depth of approximately 50 m. Prior to commencement of the head frame excavation, the perimeter of the shaft box will be grouted, on a 1.5 m offset grid, to a distance of ~5 to 10 m beyond the walls. This grout annulus will extend below the base of the excavations down into the Whitby Mudstone. On completion of grouting, the rock within the shaft box will be broken out in ~5 m deep stages with the lining installed progressively from the surface, sealing the shaft box from groundwater ingress. It is expected that this lining process will be undertaken in 25 m vertical sections. Water within the ungrouted central section of the excavations will be removed by pumping from sumps at the base of each stage of the excavation during rock extraction. During excavation, only limited water ingress is anticipated through the grout annulus. It is expected that the water from the dewatering

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process will be treated on site prior to discharge to the unnamed watercourse in the east of the site under a discharge consent.

For the lower section of the shaft, grouting is expected to be progressed in a 10 m to 15 m diameter cone ahead of the 9 m diameter open face to the shaft sinking process. This is expected to be lined in 4 m deep sections behind the open face. Water ingress through the grout annulus at the head of the shaft sinking is likely to be limited to a maximum flow rate of 36 m3/day. It is expected that this water will be treated on site prior to discharge to the unnamed watercourse in the east of the site under a discharge consent

Mining Waste Facility

The shaft and tunnel construction process in this section of the Mineral Transport System will generate rock arisings through the Scalby Formation, Scarborough Formation, Cloughton Formation, Eller Beck Formation, Saltwick Formation, Dogger Formation, Whitby Mudstone Formation, Cleveland Ironstone Formation, the Staithes Sandstone and the Redcar Mudstone. These rock arisings are to be accommodated for within a landscaped mining waste facility to be constructed in the northern non-forested area over a plan area of approximately 12.5 ha (Drawing 2319.LCP-SK01).

A principal component of the arisings to be accommodated for onsite will comprise pyritic shales of the Redcar Mudstone which can contain 5% by volume pyrite (Fe2S) as dispersed microscopic minerals within the shale (Refs. 4 and 5). Although pyritic shales are commonly used as a source of engineered fill in the UK, consideration is necessary of the potential for oxidation to occur of the pyrite within the shales and the resultant leachate and volume changes that can arise.

Testing undertaken on the Redcar Mudstone, cored at the Dove’s Nest mine site (Ref 6), has determined that these pyritic shales have a low potential to generate ferruginous sulphatic leachates and would characterise as “inert” in this respect. The testing, however, determined that these shales have a low leachable chloride content that characterise this material as “non-inert” with the potential to generate chloride rich leachates. The chemical properties of the Redcar Mudstones to be generated at the Lady Cross Plantation Intermediate Shaft Site are therefore expected to characterise as mineral waste suitable for reuse as non-hazardous non-inert material within the mining restoration operations.

In accordance with Industry Guidance (Refs. 4, 5 and 7), standard engineering measures will therefore be adopted in the construction of the landscaped mineral waste facility to prevent the weathering and oxidation of the pyritic shales that could lead to generation of leachates from the reuse of these materials. Prior to placement of tunnel and shaft arisings in the landscaped mineral waste facility, the area will be lined with an engineered barrier, comprising one of the following options:-

• 1 m thick geological barrier of compacted clay

• 1 m thick geological barrier of geosynthetic clay

• Bentonite enhanced soil liner

All of the rock materials, including the pyritic mudstones will be compacted and placed within the prepared area and on completion to finished levels, the surface of the

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engineered fill will be profiled to promote drainage off the spoil and the finished surface of mudstone will be covered by a geo-composite drainage layer. This geo-composite will collect clean surface water infiltration through the cover soils to be placed above it, to discharge the clean water into the site’s surface water drainage system. A designed subsoil and topsoil cover layer will be placed above the geo-composite drainage layer of up to 2 m thickness to provide protection to the geo-composite drainage layer and provide a suitable rooting medium for landscaping of the final restored landform.

6 ENVIRONMENTAL ASSESSMENT AND CONCEPTUAL SITE MODEL

6.1 Approach to Contamination Risk Assessment

The approach to Contamination Risk Assessment is detailed in Appendix 4.

6.2 Conceptual Site Model

The development is to include a shaft located in the southeast of the site close to the eastern boundary. The shaft is to be constructed from a shaft platform will be constructed by grouting then drilling and blasting. It is expected that the shaft will extend to a depth of around 50 m into the Banded Ironstone and Pyritous Shales Member of the Redcar Mudstone Formation. The landscaped waste mining facility is to accommodate approximately 290,000 m3 of rock material including pyritic mudstones over an area of 12.5 ha and will include a designed and engineered basal liner covered by a geo-composite layer with up to 2 m of subsoil and topsoil. This will be located in the northern part of the site with a screening of woodland on the site boundaries. The mining waste facility will raise ground levels across this area by between 0 to 6 m and will be restored to heathland or grazing purposes (Drawing 2319.LCP-SK01).

Historic plans show that the site has been undeveloped since 1853, with the exception of a large building on the northeastern boundary of the site that was constructed at the same time as the caravan park in 1995 which is located to the northeast of the site.

The ground conditions onsite are expected to comprise topsoil underlain by glacial sands and gravels in the east and cohesive Glacial Till and undifferentiated deposits in the west. The geology directly underlying the site comprises the Long Nab Member of the Scalby Formation. Ironstone workings are indicated to be present 950 m southeast of the site. It is also reported that there are man-made cavities from potash solution mining from a borehole 765 m to the southwest of the site.

No shallow significant source of surface contamination has been identified onsite.

Groundwater beneath the site is expected in the granular glacial sands and gravels and in the Scalby and Scarborough Formations which are the source of the groundwater issues and springs in close proximity to the site and to the west. Groundwater is also expected at depth in the undifferentiated Cloughton and Saltwick formations from which groundwater is abstracted to the east of the site.

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6.3 Source Characterisation

Potential onsite sources of contamination identified by this desk study are summarised as follows:-

• There are no shallow onsite sources of ground or groundwater contamination or soil gas expected from historic or current land uses;

• Possible local offsite surface water contamination may be present in the vicinity of the sewage discharge point associated with the caravan park to the east of the site;

• Low potential for leachable component (pyrite and ironstone) in the shaft and tunnel arisings that are to form the landscaped mining waste facility.

6.4 Pathway Characterisation

This desk study has identified the following potential pathways on the proposed shaft development:-

Human Health

For humans, the three possible routes of exposure to contaminants are:-

• inhalation of dusts or vapours;

• ingestion of dusts or soil either by hand-to-mouth activity or by eating plants grown in contaminated soils;

• dermal (skin) contact with contaminated soils and waters and transfer of contaminants through the skin into the body.

Plants

For plants, the main pathway for exposure involves direct contact with contaminated soils or groundwater resulting in the uptake of contaminants into the plant.

Buildings, Property and Services

The main pathways by which buildings can be affected are through soil gas, mine gas or soil vapours pooling within the structures, by contact with aggressive or acidic soils, or service trenches acting as preferential migration pathways.

Controlled Waters

The primary routes by which controlled waters (such as the underlying groundwater) can be affected are:-

• leaching of contaminants from the soil migrating vertically or laterally to groundwater beneath the site;

• movement of dissolved contaminants in soil pore water;

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13

• movement of contaminants via groundwater to surface water bodies.

6.5 Receptor Characterisation

From the environmental receptors identified on the current site conditions and in view of the receptors in the proposed development the following potential receptors have been identified:-

Part 2A Receptors

Human Health

• Future end users.

• Adjacent properties; the closest of which is the Lady Cross Caravan Site located directly to the northeast of the site.

Property

• Shaft and associated buildings/infrastructure.

• Mining waste facility.

• Lady Cross Plantation caravan site bordering the site to the north.

• A public footpath that bisects the site north-south.

Controlled Waters

Groundwater

Groundwaters in the Long Nab Member of the Scalby Formation are classified as a Secondary A Aquifer, which is overlain by drift deposits indicated to be Secondary A Aquifer in the east of the site and unproductive strata in the west of the site. The soil groundwater vulnerability status is classed as Minor Aquifer Low for the majority of the site and is classified as Minor Aquifer High (3) in the northern part of the site.

• There are two groundwater (C) source from groundwater in the granular glacial sands and gravels.

• There is one groundwater issue (E) sourced from the Scalby Formation, or from groundwater in the granular glacial sands and gravels.

• There is a groundwater spring/issue (H) sourced from the Cloughton or Slatwick Formations.

• There are four groundwater issues (J) sourced from the Scalby, Scarborough and Cloughton Formations, or from groundwater in the granular glacial sands and gravels.

• Two springs to the west of the site are sourced from Scalby Formation.

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14

• A well and a spring at The Green farm are sourced from the Cloughton Formation, or from groundwater in the granular glacial sands and gravels.

• The spring at Eden House is sourced from the Cloughton Formation, or from groundwater in the granular glacial sands and gravels.

• An abstraction (M) is sourced from the in the Jurassic Sandstone (likely the Cloughton Formation).

• An abstraction (N) is sourced from sands and gravels in the granular superficial deposits.

• An abstraction (O) is sourced from the Jurassic Sandstone (likely the Cloughton or Saltwick Formation).

• The abstraction at Topstones Farm is sourced from the Ravenscar Group (likely the Cloughton or Saltwick Formation).

Surface Water

• A stream is located alongside the southeastern field boundary (A). A discharge at (B) adjacent to the caravan site enters the stream and two culverts/land drains discharge into the stream (C).

• A drain (D) is located adjacent to the Egton Road along the site boundary.

• A strong flow of water discharges from a culvert at the southern boundary of the site (E) which feeds a stream flowing to the south.

• Two areas of wet/saturated ground (F and G) are located 330 and 415 m northeast of the site on Egton Moor that feed watercourses that drain south.

• A spring/issue (possibly several) discharges water (H) 770 m from the site, which collects and forms a tertiary river flowing south from the site.

• Water collects in a tertiary river 430 m east of the site (I) by Coopers Farm North that flows south in a tertiary river.

• Four issues (J) are located within 400 to 600 m of the north of the site, on the northern side of the A171, which feed tertiary rivers that drain north. There is no pollution linkage between these issues and the site as the issues are located upslope of the site.

• A pond (K) is found 90 m north of Lady Cross Plantation that appears to feed a stream that drains southwards adjacent to western boundary.

• There are three springs and one well located within 400 to 650 m of the south and west of the site (L).

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15

Ecological Receptors

The site is within the North York Moors National Park. No other sensitive receptors are located within 1 km of the proposed development.

Non Part 2A Receptors • Construction workers.

• Plants.

6.6 Qualitative Environmental Risk Assessment

The preliminary conceptual model outlined above has been used to undertake an initial qualitative risk assessment for this site with a view to identifying the possibility of significant risks that may exist to the proposed development and the wider environment as a result of contamination on or within the ground. Particular consideration has been made to the particular hydrogeological impacts of the proposed development.

Based on the preliminary qualitative risk assessment the following potential pollution linkages have been identified.

6.6.1 Human Health

Future Occupants/Site Users

• There is a low risk to future site users from the sewage discharge point in the north of the site as the effluent discharge is treated.

• There is a potential for elevated heavy metals, ferric oxides, sulphuric acid, calcium sulphate and acidic ground conditions within the pyritic mudstones in to be placed in the mining waste facility. As this spoil is to be placed within a designed and engineered lined and covered cell, there will be no pollution linkage to site users and no risk of harm to human health.

Adjacent Properties

• There are no sources of onsite contamination associated with the shaft development and, as such, it presents no risk of harm to adjacent properties.

• There is a potential for elevated heavy metals, ferric oxides, sulphuric acid, calcium sulphate and acidic ground conditions within the pyritic mudstones in to be placed in the mining waste facility. As this spoil is to be placed within a designed and engineered lined and covered cell, there will be no pollution linkage to adjacent properties and, as such, presents no risk of harm to adjacent properties.

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16

6.6.2 Property

Proposed Development and Services

• There will be no pollutant linkage between the offsite sewage discharge point in the east of the site and the proposed development over 200 m to the southwest. As such, the offsite sewage discharge presents no risk of harm to the proposed development.

• Bedrock and soil materials generated as spoil from the shaft and tunnel construction may contain pyritic mudstone with low concentrations of heavy metals, ferric oxides, sulphuric acid, calcium sulphate and acidic ground conditions and chlorides. As this will placed in an engineered lined and covered cell, there will be no linkage between the spoil and the proposed development and services and, as such, presents no risk

6.6.3 Controlled Waters

Groundwaters

• The site is not within a source protection area. A source protection borehole is located 1420 m east of the site and the Source Protection Zone II extends to 1170 m east of the site. Due to the distance of the Source Protection Zone from the shaft and the limited impact of grouting on the local groundwater flow it is considered that there will be no significant impact on this Source Protection Zone.

• During the construction stage of the mining waste facility, although the base will be lined, rain water and surface water ingress into the mining waste spoil, containing pyritic shales, could liberate sulphates, heavy metals, chlorides, acidic pH and suspended solids within surface runoff. As the majority of the mining waste facility site is underlain by permeable granular deposits, in hydraulic continuity with the Scalby Formation (a Secondary A aquifer), uncontrollable egress of waters during construction could present a pollution risk to sensitive receptors. As such, there is a moderate risk of groundwater contamination from the northern mining waste facility during the construction phase and appropriate mitigation measures should be included to control surface runoff and groundwater drainage from the facility during the construction phase.

• Post completion of the mining waste facility the tunnel and shaft arisings will be contained within a lined and capped engineered cell. As a result, there will be no potential to generate a pollution source and no pollution linkage will exist between the mining waste facility and the groundwaters underlying and in close proximity to it. As such, after placement and restoration of the mining waste facility there will be no pollution risk to controlled groundwaters and in particular to the groundwaters issues, springs and groundwater abstractions identified close to the site in the superficial deposits, and the Scalby, Scarborough and Cloughton Formations.

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17

• Construction of the mining waste facility could impact on surface infiltration, recharge and hydrogeological flow paths within the underlying superficial deposits and the Scalby Formation. As the mining waste facility will be mostly underlain by granular sands and gravels the landscaped mounds could locally impact on the groundwater recharge currently occurring in these areas. Due to the localised area of the sands and gravels to be covered by the mining waste facility and the significant distance to the springs and groundwater abstractions it is considered that such a localised reduction in recharge area will have no significant impact on hydrogeological flow paths.

• Dewatering during the “head frame” construction for the shaft could locally impact on groundwater in the Scalby, Scarborough and Cloughton Formation. By adopting a grout annulus to limit the necessity for dewatering, it is expected that the dewatering should have no significant impact on local groundwater issues.

• Grouting during shaft construction could impact upon groundwater flow in the Scalby, Scarborough and Cloughton Formations. Due to the localised extent of the grouting expected around the shaft annulus, and the distance from the shaft to any groundwater issues this is not expected to significantly affect any local groundwater issues. This may affect the issues located in the southern part of the site (C) and (E) (Drawing 1433AmtsOD27).

.Surface Waters

• During the construction stage of the mining waste facility, although the base of the facility will be lined, rain water and surface water ingress into the mining waste spoil, containing pyritic shales, could liberate sulphates, heavy metals, chlorides, acidic pH and suspended solids within surface water runoff. Surface runoff from the spoil could have an impact on surface water quality in close proximity to the mining waste facility i.e. the pond (K) and the surface watercourses A to E.

• After completion of the mining waste facility, the tunnel and shaft arisings will be held within a lined and capped engineered cell. As result, there will be no potential to generate a pollution source and no pollution linkage between the mining waste facility and surface waters. As such, after placement and restoration of the mining waste facility no significant pollution linkage will exist to controlled waters.

7 ENGINEERING ASSESSMENT

7.1 Environmental Considerations for the Proposed Development

On the basis of the desk study information and the qualitative risk assessment, consideration should be given to the following contamination and hydrogeological issues in the design of the proposed re-development:-

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18

• The presence of permeable glacial sands and gravels underlying the mining waste facility, may allow leachates from the mining waste facility to permeate into the sensitive shallow aquifer units during the construction phase.

• The leachability of sulphates, chlorides and pH in the shaft and tunnel arisings should be evaluated to determine the control measures to be included for in the design of the mining waste facility spoil mound.

• The requirement for dewatering, to achieve shaft construction and, the temporary and permanent impact of groundwater flow directions within the shallow aquifer units of the Ravenscar Group.

• The source and flow directions of groundwater recharge to the springs, wells and issues on and adjacent to the site and the impact of grouting during shaft construction works and on reducing recharge over the footprint of the mining waste facility.

• The impact of the proposed works on the presence of surface watercourses located in the southeastern part of the site and drain to the south.

7.2 Development Considerations

7.2.1 Shaft and Associated Buildings

Design of the shaft will require consideration of the impacts of dewatering and shaft lining design to accommodate shallow groundwater in the Scalby, Scarborough and Cloughton Formations.

Based on the BGS records there is no risk of shallow or deep mine workings beneath the intermediate shaft site.

7.2.2 Mineral Waste Facilities

Design of the mining waste facilities will require the consideration of the availability of onsite clay for use in the geological basal layer or on the suitability of the sands and gravels for reuse as a Bentonite enhance soil liner.

The mining waste facility should be located so that there is an adequate standoff from any culverted watercourses that may be present under the site.

7.2.3 Tunnel Alignment

• There are no deep boreholes within the Lady Cross Plantation area, however, borehole NZ80NW10 Egton A13 (1963) lies adjacent to the southern corner of the site.

• Man-made cavities from potash are recorded 765 m southwest of the Lady Cross Plantation. It is assumed that this entry relates to potash solution mining at borehole Eskdale 8 (1952). Consideration should be given to brining in this area and with standoffs from these boreholes.

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20

9 REFERENCES

1 British Geological Survey, 1992, Egton, Sheet 43; Solid and Drift. 1:50,000

2 Environment Agency, 2011, New Aquifer Designations, www.environment-agency.gov.uk.

3 IHS BRE Press, 2007, Radon: Guidance on Protective Measures for New Buildings, BR 211.

4 British Geological Survey, 2012. Engineering Geology of British Rocks and Soils – Lias Group.

5 Building Research Establishment. BRE Special Digest 1:2005 Concrete in Aggressive Ground.

6 FWS Consultants Ltd, 2014. Reuse of Pyritic Mudstone.

7 Building Research Establishment. Report BR230, Charles 1993 Building on Fill: Geotechnical Aspects

200

Proposed contours at 2m intervals(or as indicated)

KEY

Existing contours at 2m intervals(or as indicated)

Site boundary (indicative only)

P

R

E

L

I

M

I

N

A

R

Y

This drawing is copyright and should not be used, amended or reproduced without written consent.

Drawn:

MW

Checked:

SW

LADY CROSS PLANTATION

Drawing Number:

2319.LCP-SK01

1:2500 @ A1Scale:

Drawing Title:

Revision:

February 2014Date:

.

File: AMTS_MASTER ver7.dwg, Printed: 27/02/2014, Last saved by:Mike

YORK POTASHPOTENTIAL AMTS ACCESS POINTS

Client / Project:

N O R T H

Landscape Architecture

WarrenEstell Estell Warren Ltd

5b Chevin MillLeeds RoadOtleyLS21 1BT

Tel: 01943 464384Email: [email protected]: www.estellwarren.co.uk

Ordnance Survey © Crown copyright 2013. All rights reserved. Licence number 100014153

Revision.

CLIENT YORK POTASH LTD


Merrington House, Merrington Lane Industrial Estate, Spennymoor, Co Durham.

DL16 7UT Tel: 01388 420633 Fax: 01388 819705

www.fwsconsultants.com

JOB TITLE PHASE 1 ENVIRONMENTAL DESK STUDY, AND HYDROGEOLOGICAL ASSESSMENT LADY CROSS PLANTATION INTERMEDIATE SHAFT SITE FOR THE TUNNELLED MATERIAL TRANSPORT SYSTEM

DRAWING TITLE Schematic Cross Section of Expected Geology at the Lady Cross Plantation Site.

DATE March2014

SCALE NTS

DRAWING NUMBER 1433AmtsOD30

DRAWN BY KW

South

(Vertical = 2x Horizontal)

Site

Bou

ndar

y

Scarborough Formation

Site

Bou

ndar

y BH

A13

BH A

4

0

-50

-100

50

100

150

-150

-200

-250

200

250

-300

-350

Sha

ft Lo

catio

n

North

-50

-100

50

100

150

-150

-200

-250

200

250

-300

-350

Scalby Formation

Whitby Mudstone

Redcar Mudstone - Banded Ironstone and Pyritous Shales

Redcar Mudstone Siliceous Shales

Redcar Mudstone Calcareous Shales

Undifferentiated Cloughton, Eller Beck and Saltwick Formation

m A

OD

m A

OD

0

NOTES Site Boundary Superficial Aquifer Designation:

CLIENT YORK POTASH



DL16 7UT

Tel: 01388 420633 Fax: 01388 819705 www.fwsconsultants.com

JOB TITLE PHASE 1 ENVIRONMENTAL DESK STUDY AND HYDROGEOLOGICAL ASSESSMENT, OF TWO POTENTIAL SITE OPTIONS SITE A- LADY CROSS PLANTATION AND SITE B – EGTON LOW MOOR-COOPERS FARM SITE INTERMEDIATE SHAFT SITE FOR THE TUNNELLED MATERIAL TRANSPORT SYSTEM

DRAWING TITLE SUPERFICIAL AQUIFER DESIGNATION EXTRACT FROM ENVIROCHECK REPORT

STATUS

DRAWN BY LA

DESIGNED BY DATE March 2014

SCALE NOT TO SCALE

DRG. No. 1433AmtsOD31

REV.

NOTES Site Boundary

CLIENT YORK POTASH



DL16 7UT

Tel: 01388 420633 Fax: 01388 819705 www.fwsconsultants.com

JOB TITLE PHASE 1 ENVIRONMENTAL DESK STUDY AND HYDROGEOLOGICAL ASSESSMENT, LADY CROSS PLANTATION SITE INTERMEDIATE SHAFT SITE FOR THE TUNNELLED MATERIAL TRANSPORT SYSTEM

DRAWING TITLE MINED MINERALS PLAN EXTRACT FROM BGS MINING PLANS PORTAL

STATUS

DRAWN BY KW

DESIGNED BY DATE March 2014

SCALE NOT TO SCALE

DRG. No. 1433AmtsOD32

REV.

A P P E N D I X 1

RECENT AND HISTORICAL OS MAPS

Order Details

Site DetailsSite at, Egton Low Moor, North Yorkshire

Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):

53201110_1_11433/CTR31Egto/ladycross481310, 507560A116.41000

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Page 1 of 10A Landmark Information Group Service v47.0 11-Feb-2014

Historical Map - Slice A

Ordnance Survey County Series 1:10,560 Ordnance Survey Plan 1:10,000 1:10,000 Raster Mapping

Historical Mapping Legends

Historical Mapping & Photography included:

YorkshireYorkshireYorkshireYorkshireYorkshireOrdnance Survey PlanOrdnance Survey Plan10K Raster Mapping10K Raster Mapping

1:10,5601:10,5601:10,5601:10,5601:10,5601:10,0001:10,0001:10,0001:10,000

185318951895191619521958197620062013

23456789

10

Mapping Type Scale Date Pg

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YorkshirePublished 1853Source map scale - 1:10,560The 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; these maps were used to update the 1:10,560 maps. The published date given therefore 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. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. Therevision process continued until recently, with new editions appearing every 10 years or so for urban areas.


Map Name(s) and Date(s)

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Ordnance Survey PlanPublished 1958Source map scale - 1:10,000The 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; these maps were used to update the 1:10,560 maps. The published date given therefore 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. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. Therevision process continued until recently, with new editions appearing every 10 years or so for urban areas.



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Ordnance Survey PlanPublished 1976Source map scale - 1:10,000The 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; these maps were used to update the 1:10,560 maps. The published date given therefore 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. In the late 1940`s, a Provisional Edition was produced, which updated the 1:10,560 mapping from a number of sources. The maps appear unfinished - with all military camps and other strategic sites removed. These maps were initially overprinted with the National Grid. In 1970, the first 1:10,000 maps were produced using the Transverse Mercator Projection. Therevision process continued until recently, with new editions appearing every 10 years or so for urban areas.



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10k Raster MappingPublished 2006Source map scale - 1:10,000The historical maps shown were produced from the Ordnance Survey`s 1:10,000 colour raster mapping. These maps are derived from Landplan which replaced the old 1:10,000 maps originally published in 1970. The data is highly detailed showing buildings, fences and field boundaries as well as allroads, tracks and paths. Road names are also included together with the relevant road number and classification. Boundary information depiction includes county, unitary authority, district, civil parish and constituency. dummy



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10k Raster MappingPublished 2013Source map scale - 1:10,000The historical maps shown were produced from the Ordnance Survey`s 1:10,000 colour raster mapping. These maps are derived from Landplan which replaced the old 1:10,000 maps originally published in 1970. The data is highly detailed showing buildings, fences and field boundaries as well as allroads, tracks and paths. Road names are also included together with the relevant road number and classification. Boundary information depiction includes county, unitary authority, district, civil parish and constituency.



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Historical Map - Segment A11

Ordnance Survey County Series and Ordnance Survey Plan 1:2,500

Ordnance Survey Plan, Additional SIMs andSupply of Unpublished Survey Information

1:2,500 and 1:1,250

Large-Scale National Grid Data 1:2,500 and 1:1,250



YorkshireYorkshireOrdnance Survey PlanAdditional SIMsLarge-Scale National Grid DataLarge-Scale National Grid Data

1:2,5001:2,5001:2,5001:2,5001:2,5001:2,500

189419131972197219951996

234567


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YorkshirePublished 1894Source map scale - 1:2,500The 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 GreatBritain. 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.



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YorkshirePublished 1913Source map scale - 1:2,500The 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 GreatBritain. 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.



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Ordnance Survey PlanPublished 1972Source map scale - 1:2,500The 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 GreatBritain. 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.



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Additional SIMsPublished 1972Source map scale - 1:2,500The SIM cards (Ordnance Survey's `Survey of Information on Microfilm') are further, minor editions of mapping which were produced and published in between the main editions as an area was updated. They date from 1947 to 1994, and contain detailed information on buildings, roads and land-use. These maps were produced at both 1:2,500 and 1:1,250 scales.



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Large-Scale National Grid DataPublished 1995Source 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.



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Large-Scale National Grid DataPublished 1996Source 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.



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Ordnance Survey County Series and Ordnance Survey Plan 1:2,500

Ordnance Survey Plan, Additional SIMs andSupply of Unpublished Survey Information

1:2,500 and 1:1,250

Large-Scale National Grid Data 1:2,500 and 1:1,250



YorkshireYorkshireOrdnance Survey PlanAdditional SIMsLarge-Scale National Grid DataLarge-Scale National Grid Data

1:2,5001:2,5001:2,5001:2,5001:2,5001:2,500

189419131972 - 1973197219951996

234567


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