DAB Geotechnics

MICK GEORGE LTD.

PROPOSED RINGSTEAD GRANGE QUARRY

HYDROLOGICAL AND HYDROGEOLOGICAL ASSESSMENT

DAB Geotechnics

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

PROPOSED RINGSTEAD GRANGE QUARRY

HYDROLOGICAL AND HYDROGEOLOGICAL ASSESSMENT

April 2012

Name Signature Date Prepared by D. A. Blythe 30th April 2012

Issue Status Final Purpose For Client’s information

Prepared by

DAB Geotechnics 3, Tweed Avenue, Ellington, MORPETH, Northumberland, NE61 5ES Tel. No. 07711 168524 E-mail [email protected]

DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

PROPOSED RINGSTEAD GRANGE QUARRY HYDROLOGICAL AND HYDROGEOLOGICAL ASSESSMENT

Table of Contents

Page

1. INTRODUCTION 1

1.1 General 1 1.2 Location 2 1.3 Topography 2 1.4 Development Proposal 2

2. GEOLOGY 3

2.1 Published Information 3 2.2 Exploratory Drilling 3 2.3 General Succession 3

2.3.1 Superficial Deposits 3 2.3.2 Bedrock Strata 5

2.4 Geological Structure 8 2.5 Mining and Ground Stability 8

2.5.1 General 8 2.5.2 Mining Stability 8 2.5.3 Ground Stability 8

3. HYDROLOGY 9

3.1 Rainfall 9 3.2 Catchment and Principal Drainage Paths 9 3.3 Site Specific Drainage Details 10 3.4 Flood Risk 10 3.5 Greenfield Runoff Rate 10 3.6 Licensed and Unlicensed Surface Water Abstractions 11 3.7 Surface Water Discharges 12 3.8 Surface Water Quality 12

4. HYDROGEOLOGY 14

4.1 Environment Agency Classification 14 4.2 Hydraulic Properties of the Strata 14

4.2.1 Superficial Deposits 14 4.2.2 Bedrock Strata 14

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Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Page

4.3 Exploratory Borehole Information and Groundwater Monitoring Stations 15 4.4 Groundwater Quality 17 4.5 Licensed and Unlicensed Groundwater Abstractions 17 4.6 Waste Handling, Disposal and Treatment Sites and Waste Transfer Stations 18

5. PREDICTED EFFECTS OF PROPOSED QUARRY DEVELOPMENT AND 19 MITIGATION MEASURES

5.1 Management of Water on the Proposed Quarry Site 19 5.2 Groundwater Resources 19

5.2.1 Estimated Groundwater Inflow Rates 19 5.2.2 Effect of Drawdown 21 5.2.3 Swelling and Shrinkage of Bedrock Strata 22 5.2.4 Settlement of Backfill 22 5.2.5 Groundwater Quality 23

5.3 Surface Water Resources 23

5.3.1 Flood Risk 23 5.3.2 Attenuation Storage Volumes 24 5.3.3 Flooding of Station Road 26 5.3.4 Surface water Abstractions 26 5.3.5 Surface Water Quality 26

6. SUMMARY 27 7. REFERENCES 28

FIGURES

PHOTOGRAPHS

APPENDIX A LANDMARK ENVIROCHECK REPORT ABBENDIX B CORRESPONDENCE WITH EAST NORTHAMPTONSHIRE COUNCIL APPENDIX C SCOPING OPINION FROM THE ENVIRONMENT AGENCY APPENDIX D 1/10,000 SCALE GEOLOGICAL MAPS APPENDIX E BGS ARCHIVE BOREHOLE RECORDS APPENDIX F MINING AND GROUND STABILITY REPORT APPENDIX G FLOOD RISK ASSESSMENT APPENDIX H ATTENUATION STORAGE CALCULATIONS

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Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

1. INTRODUCTION

1.1 General

Mick George Ltd. (Mick George) proposes to extract limestone at its Ringstead Grange site and restore the exhausted workings using imported inert fill materials. DAB Geotechnics was appointed by Mick George to undertake a hydrological and hydrogeological assessment of the proposed quarry. The study has entailed:

(i) the provision of a Landmark, ‘Envirocheck’, report to determine the location of all licensed surface and groundwater abstractions, discharge consents, landfill sites and pollution incidents at distances of up to 2km from the centre of the site (Appendix A);

(ii) liaison with East Northamptonshire Council with regard to the location of any unlicensed (private) water supplies within at least 1km of the site (Appendix B);

(iii) reference to the scoping opinion provided by the Environment Agency in its letter to Northamptonshire County Council dated 8th November 2011 (ref. no. AN/2011/113241/01-L02), a copy of which is presented in Appendix C.

(iv) an examination of the geological maps and reports published by the British Geological Survey (BGS) and the provision of an Envirocheck report based on 1/10,000 scale digital information (Appendix D);

(v) reference to a number of relevant borehole logs held on the BGS GeoRecords archive (Appendix E);

(vi) the acquisition of an Envirocheck mining and ground stability report (Appendix F);

(vii) an examination of the most recent aerial photographs;

(viii) the compilation of a flood risk assessment in accordance with the National Planning Policy Framework (Department for Communities and Local Government, 2012a) (Appendix G); and

(ix) an assessment of the possible effects on surface and groundwater resources and the mitigation measures that will be undertaken.

1.2 Location

The proposed development is located about 1.5km south-west of Ringstead and 2km north-west of Raunds in an area administered by East Northamptonshire and Northamptonshire County Councils (Figure 1). The site comprises arable agricultural land and is bounded along its south- eastern margin by a wooded valley that lies adjacent to the A45 public road. Access to the quarry will be gained from the B663 (Raunds or London Road) located to the north-east. The Grid Reference for the centre of the site has been taken as 498050 273900 (1/50,000 scale Ordnance Survey Map Sheet 141 Kettering, Corby & Surrounding Area). An aerial photograph is presented as Figure 2.

1 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

1.3 Topography

The site occupies an area of 64.3 hectares and is located in an area of gently undulating land. Surface elevations range from about 66m above Ordnance Datum (AOD) in the east to 53m AOD in the west and fall towards the north-west, west and south-west.

1.4 Development Proposal

Details of the proposed working scheme for the quarry are contained within the Environmental Statement and are shown on the Working Scheme Plan (Dwg. No. R15/03) and the Indicative Phasing Plans (Dwg. Nos. R15/05). The quarry excavations will cover an area of about 52 hectares and will be worked in a south-westerly and then north-easterly direction along a succession of NW-SE aligned cuts or development phases. The quarry excavations will reach a maximum of about 12m below ground level.

The soils will be stripped in a progressive fashion. The initial volumes will be temporarily stored, but the remainder will be placed directly to bed as the exhausted workings are backfilled to restoration level using overburden, quarry discard and imported inert materials. The existing topography and landform will be largely replicated.

The development has been designed to minimize the area of disturbance at each stage of the development with land either remaining in agricultural production or restored for that use. Surface runoff will be further attenuated by creating a number of wetland areas of ecological interest (Conceptual Restoration Plan, Dwg. No. R15/14).

Surface runoff from the working areas and any groundwater abstracted from the excavations will be pumped and drained to settlement lagoons. The treated water will be discharged into an unnamed tributary of Hog Dyke, subject to the consent of the Environment Agency. Surface runoff from the restored areas that will be created in the northern part of the site will be drained to newly created wetland areas and to the existing agricultural drainage system. Measures will be taken to alleviate a problem of minor flooding of Station Road adjacent to the cemetery.

2 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

2. GEOLOGY

2.1 Published Information

The geology of the quarry area has been determined by reference to the following maps and reports that have been published by the British Geological Survey (BGS):

1/50,000 scale Geological Map, Sheet 186 Bedrock and Superficial Deposits Edition (2006); ‘Geology of the Wellingborough District’ (Barron et al., 2006); and 1/10,000 scale digital maps presented in Appendix D.

2.2 Exploratory Drilling

Details of 10 exploratory boreholes, some of which provide details of the groundwater conditions, have been obtained from the BGS GeoRecords website. Copies of the borehole logs are provided in Appendix E and their locations are shown on Figure 3.

A total of 20 boreholes (nos. 1-20) were first drilled on the site by the landowner, Foster Farms Ltd. in October 1988. These were extended to a maximum depth of 8.2m using a tractor mounted rotary blasthole rig. Eight rotary cored and flight augered boreholes were then drilled on the site by Amey Roadstone Corporation in December 1988 and January 1989 (nos. ARC1-8). A reconnaissance borehole investigation was carried out by Steetley Quarry Products Ltd. in May 1989, when 2 cored boreholes (nos. RC89/1-2) and 11 openholes (nos. RO89/3-13) were drilled. A more detailed drilling programme comprising 3 cored boreholes and 23 openholes was undertaken in January 1990 (nos. RG90/1-3 & R90/1-23 respectively). Finally, a site investigation comprising nine boreholes (nos. MG1-9) was completed by Mick George in 2011. Four of these boreholes have been instrumented to allow groundwater monitoring. The borehole locations are shown in Figure 4.

The exploratory boreholes show that the lateral extent of some of the bedrock strata differs from that shown on the BGS maps.

2.3 General Succession

2.3.1 Superficial Deposits

2.3.1.1 Recent (Flandrian) Alluvium

Recent deposits of alluvium are present along the course of the River Nene, Hog Dyke and their tributaries (1/10,000 scale Superficial Geology map, Appendix D). These generally comprise sand, silt and clay and reach up to 4m in thickness.

2.3.1.2 River Terrace Deposits

Deposits of sand and gravel along the valley of the River Nene are regarded as river terrace deposits. A simple classification based on mapped units at separate elevations has now been abandoned, as it is now believed that their deposition is multi-phase.

3 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

The Nene Valley Formation encompasses three river deposits of which only two have been identified in the area of interest. The Ecton Member or, ‘first terrace’, extends about 2m above the present floodplain and is overlain by recent alluvium. The gravel fraction comprises about 32% flint, 28% quartzite, 38.5 % local ironstone, sandstone and limestone and 1.5% chalk. The deposits reach a maximum thickness of about 4.5m.

The Grendon Member or, ‘second terrace’, is much more restricted in extent. Its surface lies between 5 and 9m above the present floodplain. The deposits reach a maximum thickness of 7.6m and have a similar composition to the Ecton Member.

The 1/10,000 scale Superficial Geology map in Appendix D shows that sand and gravel of the Ecton Member are present to the north-west of Ringstead Grange Farm and some distance to the south of the site. The deposits have been exploited and flooded workings extend to the west of Ringstead village (Figure 1).

2.3.1.3 Glacial Till and Glacio-Fluvial Sand and Gravel

Two glacial tills have been mapped in the Ringstead area: an upper till that is correlated with the Oadby Till and a lower one named the Bozeat Till. The relationship between these strata is uncertain as no intervening organic deposits have yet been recorded. They may represent deposits of discrete glacial events or merely different facies of the Oadby Till.

The Bozeat Till is a dark bluish grey diamicton consisting of sandy, silty clay with clasts of mainly Jurassic limestone and ironstone, some quartz and quartzite, rare flint and chalk. A maximum thickness of 5m has been recorded that always underlies the Oadby Till. The latter closely resembles the, ‘Chalky Boulder Clay’, of central and south-east England. It commonly reaches up to 15m in thickness. It is an olive grey to grey diamicton that weathers to yellowish brown and comprises silty clay with abundant clasts of chalk, flint, Jurassic limestone, sandstone and ironstone, quartz, quartzite and Carboniferous limestone and sandstone.

Glacio-fluvial sand and gravel occur as sparsely distributed discontinuous bodies resting on, within and beneath both tills. The clasts comprise Jurassic limestone, sandstone and ironstone, flint, quartz and quartzite and locally chalk.

The 1/10,000 scale Superficial Geology map in Appendix D shows that Bozeat and Oadby Tills are present in the eastern part of the site. Deposits of glacio-fluvial sand and gravel are recorded in its northernmost part. . 2.3.1.4 Made Ground

The 1/10,000 scale Artificial Ground and Landslip map in Appendix D shows that there are a number of areas of made ground in the Ringstead area. Those labelled WMGR refer to backfilled ironstone workings in the Northampton Sand Formation (Section 2.3.2.3), one of which is located along the northern margin of the site.

4 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

2.3.2 Bedrock Strata

2.3.2.1 General

It is proposed to extract limestone from the Cornbrash and Blisworth Limestone Formations. The limestones form part of a sedimentary succession of Jurassic age, details of which are provided in Table 1. Fuller descriptions are provided below in ascending order. The 1/10,000 scale Bedrock and Faults map in Appendix D shows the lateral extent of the various formations.

Proven Thickness Group Formation on Site (m) Upper Jurassic Oxford Clay Not present Ancholme Group Kellaways 2.25

Cornbrash 0.50-1.78 3.30-4.35 Middle Jurassic Blisworth Clay Great Oolite Group Blisworth Limestone 4.90-5.93 Rutland 3.55-4.98 (Upper & Lower Estuarine Series) Inferior Oolite Group Northampton Sand 4.95-5.85

Lower Jurassic Lias Group Whitby Mudstone >1.10

Table 1 Details of the Stratigraphic Succession at the Proposed Quarry

2.3.2.2 Lias Group

The Whitby Mudstone Formation forms the uppermost part of the Lias Group and comprises a bluish grey mudstone with thin limestones towards its base. It varies in thickness from 35 to 56m.

2.3.2.3 Inferior Oolite Group

The Inferior Oolite Group is entirely represented in the area by the Northampton Sand Formation. The constituent sideritic limestone has been widely quarried as a source of building material and iron ore. The deposit ranges in thickness from 4 to 6m.

2.3.2.4 Great Oolite Group

The Great Oolite Group rests unconformably on the eroded surface of the Northampton Sand or Whitby Mudstone Formations. The Rutland Formation can reach up to 15m in thickness, but only 3.55 to 4.98m has been proved on the site. The basal Stamford Member comprises a pale to dark grey and black sandy mudstone with ironstone bands. This is overlain by pale grey fine to medium grained sandstone. The overlying sediment consists of a rhythmic succession of mudstones and sandstones, including a calcareous mudstone and limestone horizon known as the Wellingborough Limestone Member.

5 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

The Blisworth Limestone Formation was deposited in shallow marine lagoons following transgression. It is typically 5 to 6m thick and is separated into two members. The Roade Member consists of interbedded argillaceous, bioclastic packstone, wackestone and lime mudstone. It measures some 1.8m in thickness. The overlying Irchester Member is dominated by ooidal and peloidal limestones with interbedded lime mudstone beds.

The overlying Blisworth Clay Formation comprises a smooth plastic mudstone, characteristically variegated in colour and showing blue green, magenta and purple mottling. It lies unconformably on the limestone. The irregularly bedded bioclastic packstones and grainstones of the Cornbrash Formation form the uppermost part of the Great Oolite Group.

2.3.2.5 Ancholme Group

The Kellaways Formation is divided into the basal Kellaways Clay Member, which comprises dark grey mudstone, and the overlying Kellaways Sand Member. The latter consists of a sequence of pale grey, fine grained sand or sandstone, siltstone and mudstone. The Oxford Clay Formation has only been mapped in the easternmost part of the site. Its basal part consists of dark brownish grey mudstone.

2.3.2.6 BGS GeoRecords Borehole Data

A summary of the borehole logs obtained from the BGS GeoRecords database is given in Table 2. Copies of the logs are provided in Appendix E.

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Summary of Strata (with interpretations) BGS Grid Surface Level Date Location/Name Ref. No. Ref. /Depth Drilled Borehole Description Formation

499130 60.70m AOD/ August 0.09m Topsoil. SP97NE164 Ringstead 1.20m Clay, yellowish brown, sandy. 275640 3.00m bgl 1974 0.90m Limestone. Blisworth Limestone

498300 Caprons Ringstead 52.12m AOD/ 3.96m Baring (clay & mudstone). SP97SE1 1939 274730 Estate No. 3 5.00m bgl 1.83m Ironstone. Northampton Sand

497540 Caprons Ringstead 55.47m AOD/ 4.72m Baring (clay & mudstone). 1940 SP97SE4 274000 Royalty 6.00m bgl 1.83m Ironstone. Northampton Sand 0.30m Topsoil 4.57m Mixed clay Oxford Clay 3.05m Grey sand ) Kellaways 1.52m Grey clay ) 0.30m Claystone ) Cornbrash 0.91m Limestone ) 498500 Addington II SA 60.24m AOD/ 2.44m Mixed clay ) Blisworth Clay SP97SE16 16/10/41 0.91m Brown clay ) 273950 12D/2150 31.39m bgl 6.10m Limestone Blisworth Limestone 1.52m Grey clay ) 1.83m Grey Sand ) Rutland 0.61m Hard grey sand ) 2.13m Black sand ) 4.88m Ironstone Northampton Sand 0.30m Grey clay Whitby Mudstone

497440 Caprons Ringstead 2.59m Baring (clay & mudstone). 5.03m bgl 1940 SP97SE47 274330 Estate No. Th. 1 2.44m Ironstone. Northampton Sand

498080 Caprons Ringstead 4.11m Baring (clay & mudstone). 5.00m bgl 1940 SP97SE48 274630 Estate No. Th. 2 1.52m Ironstone. Northampton Sand 0.2m Topsoil. 3.30m Clay, variegated, silty with peat partings below 2.80m. 497760 33.53m AOD/ November 1.40m Sand and gravel. SP97SE112 Raunds (Gravel - fine to coarse, angular and 272820 5.30m bgl 1974 subangular limestone, ironstone, quartzite and flint. Sand - medium to coarse.) 0.40m Clay, stiff, blue-grey. 0.9m Topsoil 498050 33.83m AOD/ November 4.50m Clayey, sandy gravel (Gravel - SP97SE115 Ringstead fine with coarse, subangular, 274950 5.40m bgl 1974 ironstone, limestone and flint. Sand - fine to coarse.) 0.40m Topsoil. 498860 69.80m AOD/ 6.00m Clay, brown and grey, chalky Raunds May 1974 SP97SE116 274330 8.90m bgl with sand partings. 2.50m Clay, firm, blue-grey, silty. Oxford Clay 1.22m Loamy clay. 3.66m Gravel. 26.82m Blue clay. ) 0.61m Argillaceous limestone. ) 497790 Meadow Road, 35.36m AOD/ 1.07m Hard clay. ) Whitby Mudstone SP97SE124 1896 0.46m Oolitic rock. ) 272800 Raunds 43.40m bgl 1.37m Dark blue indurated clay. ) 1.07 Argillo-calcareous rock, grey or ) brown, with rounded pebbles. ) Marlstone Rock 7.11m Clay with thin limestone bands ) and nodules. ) bgl – below ground level

Table 2 Summary of Borehole Data from BGS GeoRecords Archive 7 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

2.4 Geological Structure

The structure of the Jurassic strata at the proposed quarry site generally conforms to the regional south-south-easterly dip of less than half a degree (1v in 115h). This may be modified by flexuring or the effects of faulting or superficial structures. A number of minor faults have been recorded on the site. These trend NW-SE and are shown on the 1/10,000 scale maps which are presented in Appendix D.

The bedrock strata are dissected by at least two, subvertical joint sets.

2.5 Mining and Ground Stability

2.5.1 General

A mining and ground stability report has been obtained for the site and a copy is provided in Appendix F.

2.5.2 Mining Stability

There are no records of any underground workings in the Northampton Sand Formation (ironstone), but backfilled surface excavations are present to the north-west of the site (1/10,000 scale Artificial Ground and Landslip map, Appendix D). Sand and gravel has been extracted along the valley of the River Nene and the limestone has also been recovered from the Cornbrash Formation at Scalley Farm Pit, Raunds (Grid Ref. 498939 273551). The exhausted sand and gravel workings are considered to represent a site of special scientific interest (SSSI) with the majority classified as a Ramsar site and the remainder as a local nature reserve.

2.5.3 Ground Stability

The BGS National Geoscience Information Service states that there is no potential for compressible ground stability hazards on the site and that the potential for instability due to collapsible ground, landslide, ground dissolution and running sand is low to very low. The potential for compressible ground stability reaches moderate levels in those areas of backfilled ironstone workings because the backfill was not compacted during its placement. There is, however, no surface expression of any recent settlement. There is no evidence of significant karstification of the Cornbrash and Blisworth Limestone Formations, but there remains a potential for dissolution, more so where they lie close to ground surface. The potential for shrinking or swelling clay ranges from zero to moderate, dependent upon the sub-surface strata. The 1/10,000 scale geological maps in Appendix D indicate that the areas of moderate risk are linked to the outcrop of the Blisworth Clay Formation. The Rutland Formation and the superficial cover of glacial till form areas of low risk. The 1/50,000 scale map provided in Appendix F confirms that the potential is low in the area around Ringstead village.

8 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

3. HYDROLOGY

3.1 Rainfall

The long term average annual rainfall at the proposed quarry site is approximately 612mm (NERC, 1999).

3.2 Catchment and Principal Drainage Paths

The catchment boundaries for the site have been determined using the Flood Estimation Handbook CD-ROM (NERC, 1999) and are shown in Figure 5. The catchment characteristics are provided in Table 3. Surface runoff is ultimately directed to an unnamed ephemeral stream located along the south-eastern boundary of the site. This flows in a south-westerly direction and joins Hog Dyke before discharging into the River Nene at Grid Ref. 496900 273850. The river flows in a north-north-easterly direction.

Catchment Parameters Description 1 2

Catchment drainage area (km2). Index of flood attenuation due to reservoirs and lakes. Index of proportion of time that soils are wet. Mean catchment altitude (m above sea level). Index representing the dominant aspect of catchment slopes. Index describing the invariability in aspect of catchment slopes. Base flow index derived using the HOST classification. Index describing catchment size and drainage path configuration (km). Index of catchment steepness (m/km). Longest drainage path (km). Median annual maximum 1 hour rainfall (mm). Median annual maximum 1 day rainfall (mm). Median annual maximum 2 day rainfall (mm). 1961-90 standard period average annual rainfall (mm) 1941-70 standard period average annual rainfall (mm) Standard percentage runoff derived using HOST classification. Index of concentration of urban and suburban land cover. FEH index of fractional urban extent (1990) Index of location of urban and suburban land cover.

Note. UK soils have been delineated according to their hydrological properties to produce the twenty-nine class Hydrology of Soil Types (HOST) classification. The HOST dataset is available as a 1km grid which records, for each grid square, the percentage of the 1km x 1km area given to each HOST class present. Boorman et al. (1995) give standard percentage runoff (SPR) and base flow index (BFI) values for each HOST class.

Table 3 Catchment Characteristics (as determined using FEH CD-ROM (NERC, 1999))

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3.3 Site Specific Drainage Details

The site presently comprises arable land and it is assumed that a network of agricultural tile drains has been installed. There are no plans of the drainage system, but the site was inspected on the 8th December 2011 and a number of open ditches recorded, details of which are shown on Figure 6. Attention is also drawn to Photographs P1 to P5. There is no evidence to suggest the development of karstic features in the Cornbrash and Blisworth Limestone Formations. A number of flooded sand and gravel workings are present to the north of Ringstead Grange Farm along the Nene valley.

3.4 Flood Risk

Extracts of the Environment Agency Flood Map, which are presented in Appendix A, indicate that the proposed Ringstead Grange site lies in Flood Zone 1 having less than 1 in a 1,000 year annual probability of flooding (i.e. <0.1%). A flood risk assessment has been carried out in accordance with the National Planning Policy Framework (Department for Communities and Local Government, 2012a) using the advice given in the Technical Guidance (Department for Communities and Local Government, 2012b) and the notes provided for the former Planning Policy Statement (PPS) 25 ‘Development and Flood Risk’ (Department for Communities and Local Government, 2009). Details are provided in Appendix G. The assessment concludes, amongst other things, that the development will not increase the risk of downstream flooding.

3.5 Greenfield Runoff Rate

The greenfield runoff rate for the site has been determined using the methodology described in the Institute of Hydrology Report No. 124 (NERC, 1994). The calculations are as follows and are presented in Table 4.

Area: 64.3 hectares or 0.643 km2 Average Annual Rainfall for quarry: 612mm. Soil Factor: 0.37 (soil partly derived from glacial till). Average flow (QBAR): 0.154 m3/s from 64.3 hectares or 2.4 l/s/ha Hydrometric area 5

(NERC, 1975)

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(NERC, 1975)

Return period (years) 2 5 10 25 50 100

Growth Factor (from above) 0.89 1.29 1.65 2.25 2.83 3.56 Flow rate (l/s/ha) 2.1 3.1 4.0 5.4 6.8 8.5 + 10% uplift for climate change (l/s/ha) 2.3 3.4 4.4 5.9 7.5 9.4

Table 4 Estimated Greenfield Runoff Rates

Note. The uplifted greenfield runoff rates are provided for illustration purposes only and have not been used in the determination of attenuation storage volumes.

3.6 Licensed and Unlicensed Surface Water Abstractions

The Landmark Envirocheck report (Appendix A) indicates that there are three licensed surface water abstractions within 2km of the site (Table 5), all of which have been revoked. East Northamptonshire Council has confirmed that there are no unlicensed (private) surface water abstractions within 1km of the site boundary (Appendix B).

Distance Operator Recorded Abstraction Purpose of Abstraction from Centre (Licence No.) Grid Ref. Source (Permitted Maximum Rates) of Site (m) Messrs. D & E Tomaschuk 497750 272790 1,154 497930 272480 1,430 Spray irrigation (5/32/09/*s/018) Hog Dyke at Raunds 498490 272340 1,626 (5 m3/day; 120,000 m3 p.a.) Status: Revoked 499000 272350 1,822

F. R. W. Farrington, Groug Farm 497900 Unnamed stream at Spray irrigation. (5/32/09/*s/100) 1,214 272700 Groug Farm, Raunds (5 m3/day; 681,900 m3 p.a.) Status: Revoked

F. J. & D. Willoughby Williams 497100 275100 1,528 River Nene at Great Spray irrigation. (5/32/09/*s/205) 496700 274700 1,568 Addington (50 m3/day; 2,000,000 m3 p.a.) Status: Revoked

Table 5 Summary of Licensed Surface Water Abstractions

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3.7 Surface Water Discharges

The Landmark Envirocheck report (Appendix A) confirms that there three consented discharges within 1km of the centre of the quarry site (Table 6).

Approximate Permit/Licence Holder Recorded Distance Discharge Type Receiving Watercourse (Reference No.) Grid Ref. from Centre of Site (m) Kier Warth Ltd., Warth Park, 498600 Roadside Ditch, 655 Sewage Discharges London Road, Raunds 273550 Tributary of Hog Dyke (Pmnf12044) Mr. H. Foster, 497400 Cotton Farm, Ringstead 882 Unknown Not supplied 274500 (Pr5nf2184) Evans & Son, Wooton Green Farm, 499000 Discharge of other 955 Wooton Brook Wooton, Bedfordshire 274000 matter-surface water (Pr1nfg0458)

Table 6 Summary Details of Environmental Permits/Discharge Consents

3.8 Surface Water Quality

The Landmark Envirocheck report provides some details as to the quality of the water in Hog Dyke: Class C at Grid Ref. 498441 273450 and Class D at 497234 273448 in the year 2000. The Environment Agency’s internet website provides the following information with regard to the quality of the River Nene (Table 7).

Upstream Downstream Length of Reach Grid Ref. Grid Ref. 495700 497400 9km 270600 275200 Year Ammonia Dissolved Oxygen Nitrates Phosphates 2009 A B 5 5 2008 A B 5 5 2007 A B 6 5 2006 A B 6 5 2005 A B 6 5 2004 A B 6 5 2002 B B 5 5 2001 A A 5 5 2000 A B 6 5 1997 B C 1995 B B 6 6 1993 C C 1990 C E 6 6

Ammonia and dissolved oxygen - A to F (very good to bad) Nitrates and phosphates - 1 to 6 (very low to very high levels)

Table 7 Summary of Water Quality Data for the River Nene (Environment Agency Website)

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The website also indicates that the ecological and chemical quality of the river is classified as moderate and good respectively at Grid Ref. 497414 275188. However, the ammonia, copper, iron and zinc concentrations are presently considered to be high. The same comments are made with regard to Hog Dyke.

There are records of only one pollution incident to surface waters in the search area (13th August 1992, no. 1442). These refer to the Hog Dyke at Grid Ref. 497400 273500. The source of the pollution was not found, but the incident was considered to be significant (Category 2). The Environment Agency’s internet website provides details of two incidents near Woodford and Ringstead villages. These are summarized in Table 8.

Incident Grid Environmental Impact Date Local Authority Pollutant No. Ref. Impact To Land To Water 498229 302060 30/03/05 East Northamptonshire Sewage Significant Minor Significant 275230 499086 317372 03/06/05 East Northamptonshire Sewage Significant None Significant 272351

Table 8 Summary of Pollution Incidents from the Environment Agency’s Website

The proposed quarry site and the search area used in this study will form part of an Environment Agency Nitrate Vulnerability Zone as from the 1st January 2013.

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4. HYDROGEOLOGY

4.1 Environment Agency Classifications

The Environment Agency has assigned the following classifications to the soil and bedrock formations:

Alluvium Secondary A Aquifer Bozeat and Oadby Tills Unproductive Glacio-fluvial Sand and Gravel Secondary A Aquifer

Oxford Clay Formation Unproductive Kellaways Sand Member Secondary A Aquifer Kellaways Clay Member Unproductive Cornbrash Formation Secondary A Aquifer Blisworth Clay Formation Unproductive Blisworth Limestone Formation Principal Aquifer Rutland Formation Unproductive or Secondary B Aquifer* Northampton Sand Formation Secondary A Aquifer Whitby Mudstone Formation Unproductive

(*where Wellingborough Limestone Member is present)

The mapped locations of these strata are shown in Appendices A and D. There are no source protection zones on the site or within 1km of its boundary.

4.2 Hydraulic Properties of Strata

4.2.1 Superficial Deposits

The deposits of glacial till will have a very low hydraulic conductivity, typically less than 10-9 m/s, and where present this will greatly inhibit the infiltration of the underlying bedrock. The conductivity of the glacio-fluvial deposits will be much higher, possibly falling within the range 10-3 to 10-5 m/s, and as such will allow greater infiltration.

4.2.2 Bedrock Strata

Groundwater flow in the bedrock strata will be largely confined to natural joints and fissures, most especially in the limestones. There is no evidence of significant karstification, although it is entirely possible that some dissolution has occurred along the joint planes. Nevertheless, the mass permeability could be of the order of 10-6 m/s. It is expected that Blisworth Limestone and Cornbrash Formations will be largely confined by the underlying and overlying deposits of mudstone.

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4.3 Exploratory Borehole Information and Groundwater Monitoring Stations

Water strike information is provided by some of the exploratory borehole logs, but in the majority of cases these proved to be dry, due in part to the use of compressed air as the flushing medium. A summary of the available information is provided in Table 9.

Borehole No. Depth to Water (m bgl) RC89/1 Dry to base of Blisworth Limestone. RO89/3 Dry to base of Blisworth Limestone. RO89/4 Dry to base of Blisworth Limestone. RO89/5 Dry to base of Blisworth Limestone. RO89/7 Dry to base of Blisworth Limestone. RO89/9 11.5m

RG90/1 Dry to base of Blisworth Limestone. RG90/2 Dry to base of Blisworth Limestone. RG90/3 Dry to base of Blisworth Limestone. R90/1 No limestone encountered. Dry. R90/2 Dry to base of Blisworth Limestone. R90/3 Dry to base of Blisworth Limestone. R90/4 Dry to base of Blisworth Limestone. R90/5 Dry to base of Blisworth Limestone. R90/6 10.0m R90/7 17.0m R90/8 Dry to base of Blisworth Limestone. R90/9 Dry to base of Blisworth Limestone. R90/10 Dry to base of Blisworth Limestone. R90/11 14.0m R90/12 Dry to base of Blisworth Limestone. R90/13 Dry to base of Blisworth Limestone. R90/14 Dry to base of Blisworth Limestone. R90/15 No limestone encountered. Dry. R90/16 No limestone encountered. Dry. R90/17 Dry to base of Blisworth Limestone. R90/18 Dry to base of Blisworth Limestone. R90/19 Dry to base of Blisworth Limestone. R90/20 Dry to base of Blisworth Limestone. R90/21 Dry to base of Blisworth Limestone. R90/22 Dry to base of Blisworth Limestone. R90/23 Dry to base of Blisworth Limestone.

Table 9 Summary of Exploratory Borehole Water Strike Data

A total of four groundwater monitoring stations have been established as part of the most recent investigations by Mick George. These are numbered MG1 to MG4, their locations are shown in Figure 4 and a summary of the recorded water levels is provided in Table 10.

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Collar Depth Range of Recorded Water Levels Date of Grid Last Bh. No. Level of Tip Horizon of Tip First Reference Reading (m AOD) (m bgl) Depth (m bgl) Level (m AOD) Reading 427107 Stiff grey clay (Rutland Formation) 5.8m below the base of the Blisworth MG1 66.24 22.50 19.87-20.00 46.24-46.37 29/11/11 16/01/12 476133 Limestone Formation. Filter column extended to 3.50m bgl. 427230 Stiff grey clay (Whitby Mudstone Formation) 12.0m below the base of the MG2 60.08 18.00 17.03-17.12 42.96-43.05 29/11/11 16/01/12 476380 Blisworth Limestone Formation. Filter column extended to 3.50m bgl. 427340 Whitby Mudstone Formation 11.4m below base of Blisworth Limestone MG3 54.69 12.00 10.90-11.21 43.48-43.79 29/11/11 16/01/12 476186 Formation. Filter column extended to 3.5m bgl. 427586 Stiff grey silty clay (Whitby Mudstone Formation) 11.6m below base of MG4 58.66 18.00 15.63-15.65 43.01-43.03 29/11/11 16/01/12 476448 Blisworth Limestone Formation. Filter column extended to 3.5m bgl. bgl – below ground level.

Table 10 Details of Groundwater Monitoring Stations at Ringstead Grange Quarry

MG1 MG2 MG3 MG4 Determinand Nov. 11 Dec. 11 Jan. 12 Nov. 11 Dec. 11 Jan. 12 Nov. 11 Dec. 11 Jan. 12 Nov. 11 Dec. 11 Jan. 12 pH 7.40 7.40 7.30 7.50 7.40 7.40 7.50 7.50 7.40 7.60 7.50 7.30 Conductivity (S/cm) 1800 1900 1700 880 830 780 950 900 880 1100 1000 1100 Total Alkalinity (mg/l) 230 480 400 200 440 370 220 470 350 190 480 370 Sodium (mg/l) 26 31 28 9.9 11.0 9.4 34 39 34 <0.5 20 25 Cadmium (g/l) <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 Chromium (g/l) 140.0 4.7 4.7 79.0 5.6 4.4 60.0 3.9 6.0 51.0 1.3 5.2 Copper (g/l) <1 14 <1 <1 8.2 <1 <1 6.8 <1 <1 9.4 <1 Iron (g/l) 200 <20 30 90 20 50 320 120 30 600 20 <20 Lead (g/l) 4 <1 <1 1.4 <1 <1 <1 <1 <1 <1 <1 <1 Mercury (g/l) <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Nickel (g/l) <1 9.4 4.2 16.0 12.0 21.0 2.5 6.4 7.9 2.2 4.7 6.4 Zinc (g/l) 88.0 24.0 58.0 15.0 5.9 16 22.0 6.8 <1 31.0 4.5 <1 Sulphate (mg/l) 810 880 880 110 99 94 210 190 220 300 260 340 Chloride (mg/l) 79 75 74 23 1 19 50 41 39 28 23 25 COD (mg/l) <10 25 20 <10 15 10 30 30 20 10 10 10 BOD (mg/l) <4 <4 <4 <4 <4 <4 6 7 <4 14 <4 <4

Table 11 Groundwater Analysis Results

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All four monitoring installations are standpipes that record the groundwater conditions within the succession extending above the Whitby Mudstone Formation. It can be deduced from the recorded levels that there is relatively little water present and that consequently inflow rates into the excavations will be very low.

4.4 Groundwater Quality

The Landmark Envirocheck report (Appendix A) does not provide any details of groundwater quality, but the Environment Agency’s website confirms that the current quantitative and chemical quality in the Northampton Sands and, ‘Lower Jurassic Unit’, is good at Grid Refs. 497213 273484 and 499118 272309. There are no recorded groundwater pollution incidents.

Groundwater samples have been taken from the monitoring installations and the analysis results are presented in Table 11. The following observations can be made:

(i) the pH levels reflect neutral conditions;

(ii) conductivity ranges from 780 to 1900 S/cm indicating low to moderate levels of solute concentration;

(iii) heavy metal concentrations are generally quite low, in particular the red list substances cadmium and mercury;

(iv) chloride concentrations are low; and

(v) sulphate concentrations are variable and the majority exceed the drinking water standard.

The analysis results represent the, ‘average’, chemical composition for the groundwater present in the bedrock succession. Some of the marine mudstones, such as those of the Whitby Mudstone Formation, contain iron pyrites which weather to form sulphate. Any localised acidity is adequately buffered by the dissolved calcium carbonate and bicarbonate derived from the limestones.

4.5 Licensed and Unlicensed Groundwater Abstractions

The Landmark Envirocheck report (Appendix A) indicates that there are four licensed groundwater abstractions within the search area, two of which have been revoked. The status of one of the remaining abstractions is not known, but both lie some distance from the site. A summary of the details is provided in Table 12.

East Northamptonshire Council has confirmed that there are no unlicensed (private) groundwater abstractions within at least 1km of the site boundary (Appendix B).

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Distance Licence Holder Recorded Abstraction Purpose of Abstraction from Centre (Reference No.) Grid Ref. Source (Permitted Maximum Rate) of Site (m) Nene & Ouse Water Board, Cotton Lane, Raunds 497800 272800 1,133 Public water supply Well and borehole (5/32/09/*g/182) 497400 272500 1,548 (750 m3/day; 2,045,700 m3 p.a.) Status: Revoked ARC Eastern, Gravel Pit, Ringstead 497000 Groundwater fed Sand and gravel washing 1,208 (5/32/09/*g/193) 274500 reservoir (1,200 m3/day; 4,191,500 m3 p.a.) Status: Revoked Tithe Farm, Ringstead 498140 General farming and domestic 1,699 Borehole (5/32/09/*g/0222) 275600 (Abstraction rates not supplied) Status: Not Supplied M. W. Holben Ham Lane, Ringstead 498200 Agriculture (general) 1,703 Well and borehole (5/32/09/*g/196) 275600 (13 m3/day; 36,370 m3 p.a.) Status: Perpetuity

Table 12 Summary of Licensed Groundwater Abstractions

4.6 Waste Handling, Disposal and Treatment Sites and Waste Transfer Stations

There are no registered or historic landfill sites, waste handling or treatment sites, or waste transfer stations within the Landmark Envirocheck search area. The Environment Agency’s website provides details of a number of historic landfill sites, but the closest are located some 2 to 2.5km to the north and north-east of the proposed development.

Gas monitoring has been carried out on the site and the results are presented in Table 13. Very little or no methane has been encountered in the absence of any putrescible material. The presence of carbon dioxide and the slight depletion of oxygen concentrations are thought to reflect anaerobic bacterial activity in the soils and weathered bedrock.

Borehole No. MG1 MG2 MG3 MG4

Nov. Dec. Jan. Nov. Dec. Jan. Nov. Dec. Jan. Nov. Dec. Jan. Parameter 2011 2011 2012 2011 2011 2012 2011 2011 2012 2011 2011 2012

Weather OV OV C OV OV C OV OV C OV OV C Temperature (°C) 11.0 8.0 3.0 11.0 8.0 3.0 11.0 8.0 3.0 11.0 8.0 3.0 Atmospheric Pressure (mb) 1000 1002 1025 1000 1002 1025 1000 1002 1025 1000 1002 1025 Differential Pressure (mb) 0.05 -0.06 0.06 0.18 0.11 0.04 0.21 0.01 0.03 0.13 -0.08 0.05 Methane (% v/v) 0 0 0 0 0 0 0.1 0 0 0 0 0 Carbon dioxide (% v/v) 2.5 0.6 0.4 1.3 1.8 1.4 1.5 1.6 1.9 1.4 0.8 2.4 Oxygen (% v/v) 18.7 20.3 20.3 20.5 19.8 19.5 20.3 19.7 19.1 20.6 20.2 18.3 OV – Overcast C - Clear

Table 13 Summary of Gas Monitoring Results

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5. PREDICTED EFFECTS OF PROPOSED QUARRY DEVELOPMENT AND MITIGATION MEASURES

5.1 Management of Water on the Proposed Quarry Site

The development has been designed so that a large part of the site will remain undisturbed and in agricultural production or in a state of restoration at any one time. It is proposed to manage surface runoff and groundwater using a system of cut-off ditches, drainage channels and temporary sumps. The water will be pumped and/or drained to treatment areas that will comprise settlement ponds with storm water storage capacity, some of which will be permanently established in the southern part of the site. Additional storage will be provided in the excavations and in the drainage channels. The treated water will be discharged into the unnamed tributary of Hog Dyke as shown on the Working Scheme Plan (Dwg. No. R15/03). An environmental permit (discharge consent) will be sought from the Environment Agency. The southern lagoons will form a permanent feature of the restored site. It is also proposed to drain water from the northern part of the site following its restoration to agricultural land. Wetland areas will be established to create additional retention with the aim of resolving the present problem of flooding on Station Road at the point shown on Figure 6.

5.2 Groundwater Resources

5.2.1 Estimated Groundwater Inflow Rates

The site will be developed in a progressive manner with the excavations formed along a succession of cuts. These are shown on the Working Scheme Plan (Dwg. No. R15/03) as Phases 1 to 23 and be backfilled as the limestone is extracted. The operator will aim to minimise the area of disturbed ground and hence the size of the excavation void at any one time.

The borehole monitoring installations (Table 10) suggest that very little groundwater will be encountered in the quarry excavations. This will be largely confined within the Blisworth Limestone Formation, the base of which will form the quarry floor, but there is likely to be some leakiness owing the presence of natural joints and fissures. For the purposes of this exercise, it has been assumed that the saturated thickness is 2.20m, just under half that of the limestone. This is a conservative assumption and the formation may well prove to be largely dewatered. Groundwater inflow will extend from all four excavated slopes of the initial boxcut and subsequently from a combination of in situ bedrock and inert fill that will be placed in the exhausted workings. The backfill will comprise a mixture of overburden and imported material, some of which will be cohesive in nature.

Reference has been made to Science Report SC040020/SR1 (Environment Agency, 2007) to estimate the inflow rates. The lateral extent of the drawdown will vary dependent on the length of time that transpires as each excavation cut is formed and the rate of recovery where the workings have been backfilled. The Working Scheme Plan (Dwg. No. R15/03), which forms part of the planning submission, shows that the cut lengths will vary from about 295 to 530m. The initial boxcut in the north-eastern part of the site will measure some 382m in length and 100m in width. Thereafter, the majority of the excavation cuts are 50 to 60m wide.

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If it is assumed that the groundwater flow in the Blisworth Limestone is confined, the inflow rate per linear metre of excavation (Q) can be estimated using the Thiem equation for steady state conditions:

Q = 2KD(s1 – s2)/2.30log(r2/r1),

where K is the hydraulic conductivity, D is the saturated thickness of the aquifer, s1 and s2 represent the drawdown in two observation boreholes and r2 and r1 are the distances or radii extending from an abstraction well.

If there is only one observation point and the water is drawn from an excavation, the equation becomes:

Q = 2D(se)/2.30log(Ro/re)

where se is the drawdown in the excavation, re is the effective radius of the excavation and Ro is the radius of influence equivalent to the distance at which there is no drawdown (i.e. s2 is zero).

The equivalent radius (re) can be estimated using the equation for a rectangular excavation provided by Powrie and Preene (1992):

re = (a + b)/

There are independent methods of estimating the value of Ro. Sichardt’s equation has been used and whilst this grossly under-estimates its value it does give a conservative inflow rate from which adequate pumping capacity can be determined. The use of this equation is, however, not encouraged by the Environment Agency. Fortunately, the maximum value of Ro can be estimated at Ringstead Grange because the limestone outcrops beneath the soil and glacial cover in relatively close proximity (1/10,000 scale geological maps in Appendix D). The exploratory boreholes suggest that it lies even closer. Nevertheless, a range of Ro values has been used equivalent to re plus 50, 100, 200 and 300m. (Note. These are measured from the centre of the excavation as is re.) The drawdown (se) has been taken as 2.20m.

The hydraulic conductivity of the limestone has been taken as 10-6 m/s to reflect the lithostatic unloading that will occur during the quarrying process and some measure of dissolution along the natural joints. The conductivity of the backfill will vary considerably. Initially, it could be as high as 10-3 m/s, but it will become less permeable as it is surcharged by additional volumes of material, probably falling to 10-5 m/s about one or two cut widths back from the excavation void. Backfilling will be progressive, but the calculations have been based on two cut widths for those excavations extended beyond the boxcut (i.e. Phase 1). An additional allowance has also been made for flow along the loosewall (a factor of ten times higher per linear metre). The calculation results are presented in Table 14. Faulting is known to be present on the site and although this might compartmentalise the groundwater, its effect has been ignored.

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The estimated inflow rates are low showing little change beyond a distance of about 400 to 500m from the centre of the excavations. Flow rates through the quarry floor will be insignificant. This will comprise mudstone strata of the Rutland Formation. Experience has shown that by far the majority of the water that will be drawn from the excavations will be surface runoff. This will serve to dilute the solute concentrations detailed in Table 11.

Dimensions Estimated Inflow Total Inflow length x width s (m) r (m) R (m) Notes Rate from Bedrock e e o Rate (l/s) (m) (l/s per linear m)

BOXCUT (PHASE 1)

-3 216 Inflow from bedrock on four sides. 0.09 x 10 0.09 -3 266 BGS mapped extent of limestone extends only 220m to 0.06 x 10 0.06 382 x 100 2.2 153 366 the north-east of the excavations. Exploratory drilling 0.03 x 10-3 0.03 466 suggests that the outcrop lies closer. 0.03 x 10-3 0.03

INTERMEDIATE EXCAVATION (PHASE 5)

-3 220 Inflow from bedrock on three sides, backfill on one side. 0.07 x 10 0.04 + 0.25 = 0.29 -3 270 BGS mapped extent of limestone extends only 220m to 0.05 x 10 0.03 + 0.18 = 0.21 358 x (50 x 2) 2.2 146 370 north-east of the excavations. Exploratory drilling 0.03 x 10-3 0.02 + 0.11 = 0.13 470 suggests that the outcrop lies closer. 0.03 x 10-3 0.02 + 0.11 = 0.13

INTERMEDIATE EXCAVATION (PHASE 11)

-3 198 Inflow from bedrock on three sides, backfill on one side. 0.09 x 10 0.05 + 0.32 = 0.37 -3 248 BGS mapped extent of limestone extends only 220m to 0.06 x 10 0.03 + 0.21 = 0.24 354 x (48 x 2) 2.2 143 348 north-east of the excavations. Exploratory drilling 0.03 x 10-3 0.02 + 0.11 = 0.13 448 suggests that the outcrop lies closer. 0.03 x 10-3 0.02 + 0.11 = 0.13

INTERMEDIATE EXCAVATION (PHASE 16)

-3 247 Inflow from bedrock on two sides, backfill on two sides. 0.16 x 10 0.10 + 1.03 = 1.13 -3 297 BGS mapped extent of limestone extends only 220m to 0.08 x 10 0.05 + 0.51 = 0.56 528 x (58 x 2) 2.2 205 397 the south-east of the outer limit of excavations. 0.05 x 10-3 0.03 + 0.32 = 0.35 497 Exploratory drilling suggests that the outcrop lies closer. 0.03 x 10-3 0.02 + 0.19 = 0.21

Table 14 Estimated Groundwater Inflow Rates

5.2.2 Effect of Drawdown

The calculation results shown in Table 14 are based on a saturated thickness of 2.20m in the Blisworth Limestone. This is a conservative assumption and it is thought that very little groundwater will be encountered. Any drawdown will be very restricted in lateral extent and will be further confined by the outcrop of the limestone. Table 12 provides details of two licensed groundwater abstractions that are presently active. Both lie at some considerable distance from the centre of the site where they are unlikely to be derogated by any drawdown in the Blisworth Limestone Formation or the overlying strata. There are no private or unlicensed abstractions within 1km of the site boundary (Appendix B). 21 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

The groundwater monitoring installations point to the complete absence of high piezometric pressures in the bedrock and it can be concluded that the topsoil and subsoil are subsoil are most likely under-drained in the Ringstead Grange area. Consequently, it is not thought that any drawdown in the Blisworth Limestone Formation will have an adverse effect on surface vegetation and agricultural yields. There will be no adverse effect on the abandoned sand and gravel workings that lie some distance to the north-west and south-west of the site. These have been identified as important areas of ecological interest (i.e. SSSI and Ramsar status).

5.2.3 Shrinkage of Bedrock Strata

Concern has been expressed that the dewatering operations at the quarry will lead to shrinkage of the mudstones that underlie Ringstead village and other buildings in the area. Shrinkage could damage the foundations and give rise to cracking and structural damage (BRE, 1990a, 1990b, 1993 and 1997; Bonshor and Bonshor, 1997). Some of the mudstones in the Jurassic strata do contain clays of montmorillonitic or mixed layer type and as such will swell and shrink with changes in moisture content. These changes can be brought about by the growth or removal of trees.

The mining and ground stability report in Appendix F indicates that the potential for swelling and shrinkage around Ringstead village is low regardless of the very limited extent of any drawdown around the proposed quarry excavations. Any dewatering will only affect the Blisworth Limestone Formation and the overlying strata. For this reason, the nearest building structures at Ringstead Grange Farm will not be placed at risk. Top Lodge is unoccupied and derelict.

5.2.4 Settlement of Backfill

The backfill materials will be tipped, spread and trafficked by the earthmoving plant deployed at the quarry, but it is not planned to undertake systematic compaction. Self-weight compaction and consolidation will occur as the height of the fill is raised. There will be some creep settlement which can be expressed as follows:

Ds = αHlog10(t2/t1) Sowers et al. (1965)

where Ds is the vertical strain or settlement, α is the creep compression parameter and t1 and t2 are measured times after placement.

The creep compression parameter will probably equate to approximately 0.5% at the Ringstead Grange site, within the range 0.2% for fully compacted rockfill to 1% for loose tipped mudstone. This will equate to a maximum of 0.06m in the period 1 to 10 years after placement where the fill reaches a maximum of 12m in thickness. The majority of the settlement will occur during and shortly after placement (i.e. during the operational period of the quarry). A further 0.06m may then occur within the period 10 to 100 years. The loose tipped material in the former ironstone workings to the north of the site shows very little evidence of settlement.

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Collapse settlement will also occur in the fill due to the infiltration of surface water and the recovery of groundwater. The scale of this settlement will depend on the degree of compaction achieved during the placement of the fill, but is expected to be of the order of a few millimetres.

The restoration drainage system will be designed to cater for the likely settlement that will occur in the fill. Particular attention will be paid to those areas where the differential settlement is likely to be greatest (e.g. buried excavation slopes). Provision will also be made to cater for the possible increased levels of rainfall that might occur as a consequence of climate change.

5.2.5 Groundwater Quality

There are no known waste handling or treatment sites, or waste transfer stations within at least 1km of the centre of the proposed extension site. These might otherwise represent potential sources of groundwater contamination. The analysis results presented in Table 11 give some impression as to the quality of the groundwater on the site. Owing to the nature of the monitoring installations, however, the sampled water may be partly or wholly derived from strata underlying the Blisworth Limestone Formation.

The exhausted workings will be partly backfilled using overburden and discard materials from the crushing and screening process. This material will comprise a mixture of clay, mudstone and some limestone and as such will be pH neutral. It is not expected to have an adverse impact on groundwater quality. The proposed importation of inert material to complete the backfilling process will be subject to legislative control. This will also ensure that there is no adverse impact.

5.3 Surface Water Resources

5.3.1 Flood Risk

A Flood Risk Assessment has been carried out in accordance with the National Planning Policy Framework (Department for Communities and Local Government, 2012a) and a copy is provided in Appendix G. The assessment has been set out in accordance with the proforma provided by the Department for Communities and Local Government (2009). The main conclusions of the assessment are summarized below.

(i) The site lies in Flood Zone 1 and there will be negligible risk of flooding from streams or rivers during the extraction, restoration and post-restoration phases.

(ii) There will be only a very low risk of flooding of the excavations by groundwater.

(iii) Surface runoff from the site will largely accumulate in the excavations. There is a risk that during extreme weather conditions the rate of surface runoff will exceed the capacity of the drainage channels and any pumps that may be deployed. The excavations may then be partly inundated. This risk is fully accepted by the developer and will not have any impact outside the quarry.

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(iv) Discharges of treated water from the quarry will be controlled at or below greenfield rates and consequently there will be no increased risk of downstream flooding.

(v) The land use and drainage of the restored site (Dwg. No. R15/04) are such that the long- term runoff characteristics can be maintained at not greater than greenfield rates. Additional attenuation will be provided by the creation of wetland areas in the north, western and southern parts of the site.

(vi) There are no proposals for flood defences or mitigation measures that might increase flood risk elsewhere.

5.3.2 Attenuation Storage Volumes

The proposed quarry workings have been designed so as to minimize the area of disturbance at each stage of its development. The exhausted workings will be backfilled and restored to re- establish the present landform and greenfield runoff rates. The drainage water from the restored area will be directed into the excavations, but as it is extended, the flow paths will be extended to supply wetland areas along the northern perimeter and in the western part of the site. Some of the water will be discharged at point D1 to alleviate the localized flooding problem shown on Figure 6 (see Section 5.3.3). The discharges will represent normal agricultural drainage only and not trade effluent. Surface runoff and groundwater that flows or is pumped from the working areas will be directed through water treatment areas and will be discharged, subject to the consent of the Environment Agency, into the unnamed tributary of Hog Dyke along the south-eastern perimeter of the site.

The volume of storage required to attenuate the discharge of water from the disturbed areas of the site has been determined using a lumped input-storage-output model as described in the CIRIA SUDS Manual (CIRIA, 2007). The site lies in two catchment areas (Figure 5) and the highest rainfall intensities derived using the Flood Estimation Handbook CD-ROM were used in the calculations. Storm durations of up to 380 hours were considered with return periods of 1, 10, 20, 30, 50, 100 and 200 years.

The area of disturbance was determined for each stage of the development shown on the Indicative Phasing Plans (Dwg. No. R15/05), together with an estimate of that created during the formation of the boxcut (Phase 1). A factor of 0.85 has been applied to all areas of bare earth, including newly constructed soil storage mounds, to calculate the equivalent impermeable area. This may well prove to be a conservative estimate as the infiltration could well be much greater, especially where unsaturated bedrock strata are exposed. The restored boxcut area was assumed to have the same runoff characteristics as the existing arable land and a factor of 0.35 was applied based on the catchment characteristics given in Table 3. Details of the calculations are provided in Table 15.

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The minimum area of disturbance at any stage during the quarry development will be 13.5 hectares. The water from this area will be drained and treated and then discharged to the south of the quarry at a greenfield rate of 2.4 x 13.5 = 32 l/s (i.e. QBAR x area rounded down from 32.4 l/s). This will be the discharge flow rate into the unnamed tributary of Hog Dyke for which consent will be sought from the Environment Agency. It will apply for the entire duration of the quarry development and for all storm events.

Development Total Area Disturbed Areas Stage (ha)

Access road, site service area, excavation and soil strip area; soil storage areas, topsoil storage mounds T1, T2 and T3, subsoil Boxcut (Phase 1) 13.5 mounds S1 and S2 (all prior to development of grass cover); access tracks to soil strip areas. Access road, site service area, excavation and soil strip area; soil Around Phase 5 storage mound S3 (prior to grass cover) and restored boxcut area 15.6 (4.7 ha).

Around Phase 11 Access road, site service area, excavation and soil strip area. 13.5

Around Phase 16 Access road, site service area, excavation and soil strip area. 15.0

Table 15 Estimated Areas of Disturbance and Equivalent Impermeable Areas

A conservative estimate of the groundwater inflow is provided in Table 14. The volume of groundwater was determined for the lumped input-storage-output model using the inflow rate for

Ro = re + 50m (i.e. the highest value) for each of the development stages considered. The rainfall values were also increased by a factor of 10% to account for the likely effects of climate change and in accordance with the recommendations made in Table 5 of the Technical Guidance to the National Planning Policy Framework (Department for Communities and Local Government, 2012b). This assumes that the development will commence in 2012 or 2013. It is expected that greenfield runoff rate will also increase, but a corrected value has not been used in the calculations. The spreadsheet calculations are presented in Appendix H and a summary is given in Table 16.

Attenuation Storage Required (m3) (based on QBAR for all events) Development Stage 1 in 1 year 1 in 30 year 1 in 100 year Boxcut (Phase 1) 1,180 8,234 11,680 Around Phase 5 1,513 9,887 13,943 Around Phase 11 1,186 8,246 11,704 Around Phase 16 1,438 9,474 13,374

Table 16 Summary of Estimated Attenuation Storage Volumes (Based on a discharge flow of QBAR for all events) 25 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

By far the majority of the required storage will be provided in the quarry excavations, but capacity will also be created in the areas that have been stripped of soils as these will be bounded by shallow excavation slopes. There will be significant retention in the water treatment lagoons and drainage channels. Partial flooding of the mineral workings during times of inclement weather is relatively commonplace and the risk is fully accepted by the developer.

5.3.3 Flooding of Station Road

It has been reported that Station Road occasionally floods at a point adjacent to the cemetery as shown on Figure 6. It would appear that the drainage channel that extends along the south- western perimeter of the cemetery presently discharges directly onto the road because of blockages in the roadside ditch. An attempt has been made to attenuate the discharge flow by constructing two storage lagoons at the location shown on Figure 6 (Photograph P6), one of which is unlined and does not appear to retain water. It is proposed to divert the majority of the surface flow from the application site by creating a wetland area in its northern part and diverting the water along a more westerly route. This will then flow through the 150mm diameter drain that extends beneath Station Road and into the lake that lies beyond. The drain will require further inspection and remedial work.

5.3.4 Surface Water Abstractions

There are no licensed or unlicensed surface water abstractions within at least 1km of the site. The proposed excavations also lie some distance from the River Nene, Hog Dyke and the flooded mineral workings that now form protected areas. There will be changes in the pattern of surface flow during the development, but the supply of water will be compensated by discharges into the unnamed tributary of Hog Dyke along the south-eastern perimeter of the site.

5.3.5 Surface Water Quality

The discharge of treated water from the site will require the consent of the Environment Agency in the form of an environmental permit. The Agency will not only determine the discharge flow rate to ensure that there will be no increased risk of downstream flooding, but also the quality of the water. This will ensure that there will be no adverse effect on the nature conservation sites into which Hog Dyke and its tributaries flow.

It is anticipated that the principal contaminant in the untreated water will be suspended solids and that this can be suitably remediated by simple settlement. The majority will be retained in temporary sumps formed within the excavations. The water treatment facilities will be regularly inspected in accordance with the Quarries Regulations (1999). This will ensure that immediate action is taken to maintain their stability, security and efficient operation. If it is required to use flocculants, their use and dosage rate will be first agreed with the Agency. The operator will have in place emergency measures to deal with any spillages (e.g. the deployment of absorbent mats and booms). Fuel oil storage areas will be adequately bunded in accordance with Control of Pollution (Oil Storage) (England) Regulations 2001 to protect both surface and groundwater.

26 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

6. SUMMARY

6.1 Mick George Ltd. proposes to develop a limestone quarry on land at Ringstead Grange Farm. The exhausted workings will be backfilled with overburden, quarry discard and imported inert fill materials, subject to the approval of the Environment Agency. The excavations will extend in depth to a maximum of about 12m below ground level.

6.2 The proposed development will not have an adverse effect on surface water resources. There are no licensed or unlicensed surface water abstractions within at least 1km of the site. Consent will be sought from the Environment Agency to discharge treated water from the quarry during its operation. It will determine the quality of the water and this will ensure that there is no adverse impact on the receiving watercourses. It can therefore be concluded that there will be no adverse effect on the areas of nature conservation in the Nene valley. The flows will be maintained at or below greenfield rates and consequently there will be no increased risk of downstream flooding. Storm flows will be attenuated by providing adequate storage during the operation of the site, principally within the excavations. Partial flooding of the excavations during periods of prolonged inclement weather is relatively commonplace in the quarrying industry and is fully accepted by the operator.

6.3 The existing landform will be largely replicated as part of the proposed restoration scheme with the majority taking the form of agricultural land. Wetland areas will be created to attenuate surface flow. The northern part of the site will be drained towards the north, as is presently the case, using the existing or a newly created agricultural drainage system. Greenfield runoff rates will be restored throughout the site.

6.4 There will be no adverse impact on groundwater resources. There are no licensed or unlicensed groundwater abstractions within at least 1km of the site. It is expected that very little groundwater will be encountered in the excavations and consequently any drawdown will be very limited in extent. The effect of any drawdown will be limited in area underlain by the Blisworth Limestone Formation. By far the majority of the water that will be drawn from the quarry workings will be surface runoff. The development will not increase the potential for swelling and shrinkage of the clays and mudstones underlying Ringstead village or any other buildings around the site. The farmstead at Top Lodge is unoccupied and derelict.

6.5 There are no known waste handling or treatment sites, or waste transfer stations within at least 1km of the proposed quarry extension that might otherwise represent potential sources of groundwater contamination. The mineral excavations will be backfilled with material that will not have an adverse impact on groundwater quality. The restoration drainage scheme will be designed to cater for the settlement that will occur in the fill and the likely effects of climate change.

27 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

7. REFERENCES

Allen, D. J., Brewerton, L. J., Coleby, L. M., Gibbs, B. R., Lewis, M. A., MacDonald, A. M., Wagstaff, S. J. and Williams, A. T. (1997), ‘The Physical Properties of Major Aquifers in England and Wales’. British Geological Survey Technical Report WD/97/34. Environment Agency R & D Publication 8. Keyworth, Nottingham. 312p.

Barron, A. J. M., Morigi, A. N. and Reeves, H. J. (2006), ‘Geology of the Wellingborough District’. British Geological Survey, Keyworth, Nottingham. 34p.

Boorman, D. B., Hollis, J. M. and Lilly, A. (1995), ‘Hydrology of Soil Types: a Hydrology of Soil Types: a Hydrologically Based Classification of the Soils of the United Kingdom’. IoH Report No. 126. Institute of Hydrology, Wallingford.

Bonshor, R. B. and Bonshor, L. L. (1997), ‘Cracking in Buildings’. Building Research Establishment. Construction Research Communications Ltd. 102p. Watford.

Building Research Establishment (1990a), ‘Digest 240: Low Rise Buildings on Shrinkable Clay Soils’. Part 2. 4p. Watford.

Building Research Establishment (1990b), ‘Digest 361: Cracking in Buildings’. 4p. Watford.

Building Research Establishment (1993), ‘Digest 240: Low Rise Buildings on Shrinkable Clay Soils’. Part 1. 4p. Watford.

Building Research Establishment (1997), ‘Digest 412: Desiccation in Clay Soils’. Part 1. 10p. Watford.

CIRIA (2007), ‘The SUDS Manual’. Report C697. CIRIA, London.

Department for Communities and Local Government (2009), ‘Planning Policy Statement 25: Development and Flood Risk Practice Guide’. December. 181p. London.

Department for Communities and Local Government (2012a), ‘National Planning Policy Framework’. March. 59p. London.

Department for Communities and Local Government (2012b), ‘Technical Guidance to the National Planning Policy Framework’. March. 23p. London.

Department of the Environment, Fisheries and Rural Affairs (2003), Supplementary Note on Climate Change - Considerations for Flood and Coastal Management. Flood Management Division/Environment Agency. April 2003.

28 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Environment Agency (2004), ‘National Standing Advice to Local Planning Authorities for Planning Applications’. Development and Flood Risk, England. User Guidance Note, June 2004.

Environment Agency (2009), ‘River Nene Catchment Flood Management Plan’. December 2009.

Faber Maunsell/AECOM (2006), ‘East Northamptonshire Council Strategic Flood Risk Assessment - Stage 2’. Report to East Northamptonshire Council. 104p plus Figures and Appendices.

Health and Safety Executive (1999), ‘Quarries Regulations and Approved Code of Practice’. HMSO, London.

Lancaster, J. W., Preene, M. and Marshall, C. T. (2004), ‘Development and Flood Risk – Guidance for the Construction Industry’. CIRIA Report C624. London.

Natural Environment Research Council (1975), ‘Flood Studies Report’. London.

Natural Environment Research Council (1994), ‘Flood Estimation for Small Catchments’. Institute of Hydrology Report No. 124. Institute of Hydrology, Wallingford.

Natural Environment Research Council (1999), ‘Flood Estimation Handbook, with WIN-FAP FEH Software and FEH CD-ROM for Catchment Descriptors’. Centre for Ecology and Hydrology, Wallingford.

Powrie, W. and Preene, M. (1992), ‘Equivalent Well Analysis of Construction Dewatering Systems’. Geotechnique, 42, No. 4, pp 635-639

URS Scott Wilson (2011), ‘East Northamptonshire Council. Level 1. Strategic Flood Risk Assessment. Review and Update’. Report to East Northamptonshire Council August. 44p plus Appendices.

29 DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

FIGURES

DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

1km

1km

Reproduced with the Permission of Controller of H. M. Stationery Office © Crown Copyright. All rights reserved. Licence No. WL1005542 DAB Geotechnics. Figure 1 Site Location (based on 1/50,000 scale OS map)

DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

New Zealand Farm Figure 2 Aerial62 Photograph

DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Reproduced with the Permission of Controller of H. M. Stationery Office © Crown Copyright. All rights reserved. Licence No. WL1005542 DAB Geotechnics. Figure 3 BGS GeoRecords Borehole Location Plan DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

ARC 4

ARC 8 MG4 ARC 3 MG1 ARC 5

ARC 1 MG5 ARC 2 MG9

MG8 MG6

MG3 ARC 6 MG5 Mick George Ltd. MG7 MG1 Boreholes ARC 7 groundwater monitoring installation ARC 8 ARC Borehole

MG2

Reproduced with the Permission of Controller of H. M. Stationery Office © Crown Copyright. All rights reserved. Licence No. WL1005542 DAB Geotechnics. Figure 4 Exploratory Borehole Plan DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Catchment Area 1

Site Boundary

Catchment Area 2

Figure 5 Catchment Boundaries (as determined using FEH CD-ROM (NERC, 1999))

DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

PHOTOGRAPHS

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Photograph P1. Northern perimeter of tree filled gully along the south-eastern boundary of the site. An unnamed tributary of Hog Dyke flows along the gully which adjoins the A45 public road (08/12/11).

Photograph P2. Details of ditch that extends beneath the wooden fence and into the tree filled gully shown in Photograph P1 (08/12/11). DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Photograph P3. Detail of ditch extending south-south-east towards the A45 public Photograph P4. Detail of ditch extending north-north-west from the location of road and the location of Photograph P2 (08/12/11). Photograph P3 (08/12/11). DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Photograph P5. Detail of ditch extending south-south-east from the northern boundary of the site (08/12/11).

Photograph P6. Detail of lined attenuation pond to the north of the site. The second unlined pond lies beyond (08/12/11). DAB Geotechnics Proposed Ringstead Grange Quarry Date: December 2011

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX A

Landmark Envirocheck Report

DABGeot/11093/Final

Envirocheck ® Report: Datasheet

Order Details: Order Number: 37137693_1_1 Customer Reference: 11093 National Grid Reference: 498050, 273900 Slice: A Site Area (Ha): 0.01 Search Buffer (m): 1000

Site Details: Site at 498050, 273900

Client Details: Dr D Blythe DAB Geotechnics 3, Tweed Avenue Ellington MORPETH Northumberland NE61 5ES

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Contents

Report Section Page Number

Summary -

Agency & Hydrological 1

Waste 6

Hazardous Substances -

Geological 7

Industrial Land Use -

Sensitive Land Use 9

Data Currency 10

Data Suppliers 16

Useful Contacts 17

Introduction

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

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

Copyright Notice

© Landmark Information Group Limited 2012. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property of Landmark Information Group Limited ("Landmark") and several other Data Providers, including (but not limited to) Ordnance Survey, British Geological Survey, the Environment Agency and Natural England, and must not be reproduced in whole or in part by photocopying or any other method. The Report is supplied under Landmark's Terms and Conditions accepted by the Customer. A copy of Landmark's Terms and Conditions can be found with the Index Map for this report. Additional copies of the Report may be obtained from Landmark, subject to Landmark's charges in force from time to time. The Copyright, design rights and any other intellectual rights shall remain the exclusive property of Landmark and /or other Data providers, whose Copyright material has been included in this Report.

Natural England Copyright Notice

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

Ove Arup Copyright Notice

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

Peter Brett Associates Copyright Notice

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

Radon Potential dataset Copyright Notice

Information supplied from a joint dataset compiled by The British Geological Survey and the Health Protection Agency.

Report Version v47.0

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Summary

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

Contaminated Land Register Entries and Notices

Discharge Consents pg 1 3

Enforcement and Prohibition Notices

Integrated Pollution Controls

Integrated Pollution Prevention And Control

Local Authority Integrated Pollution Prevention And Control

Local Authority Pollution Prevention and Controls

Local Authority Pollution Prevention and Control Enforcements

Nearest Surface Water Feature pg 1 Yes

Pollution Incidents to Controlled Waters pg 1 1

Prosecutions Relating to Authorised Processes

Prosecutions Relating to Controlled Waters

Registered Radioactive Substances

River Quality pg 1 2

River Quality Biology Sampling Points

River Quality Chemistry Sampling Points

Substantiated Pollution Incident Register

Water Abstractions pg 2 (*12)

Water Industry Act Referrals

Groundwater Vulnerability pg 4 Yes n/a n/a n/a

Bedrock Aquifer Designations pg 5 Yes n/a n/a n/a

Superficial Aquifer Designations n/a n/a n/a

Source Protection Zones

Extreme Flooding from Rivers or Sea without Defences n/a n/a

Flooding from Rivers or Sea without Defences n/a n/a

Areas Benefiting from Flood Defences n/a n/a

Flood Water Storage Areas n/a n/a

Flood Defences n/a n/a Waste

BGS Recorded Landfill Sites

Historical Landfill Sites

Integrated Pollution Control Registered Waste Sites

Licensed Waste Management Facilities (Landfill Boundaries)

Licensed Waste Management Facilities (Locations)

Local Authority Recorded Landfill Sites

Registered Landfill Sites

Registered Waste Transfer Sites

Registered Waste Treatment or Disposal Sites

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Summary

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

Control of Major Accident Hazards Sites (COMAH)

Explosive Sites

Notification of Installations Handling Hazardous Substances (NIHHS)

Planning Hazardous Substance Consents

Planning Hazardous Substance Enforcements Geological

BGS Recorded Mineral Sites pg 7 1

BGS 1:625,000 Solid Geology pg 7 Yes n/a n/a n/a

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

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

Mining Instability n/a n/a n/a

Man-Made Mining Cavities

Natural Cavities

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

Potential for Collapsible Ground Stability Hazards pg 7 Yes n/a n/a

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

Potential for Ground Dissolution Stability Hazards pg 7 Yes n/a n/a

Potential for Landslide Ground Stability Hazards pg 7 Yes n/a n/a

Potential for Running Sand Ground Stability Hazards pg 7 Yes n/a n/a

Potential for Shrinking or Swelling Clay Ground Stability Hazards pg 7 Yes Yes n/a n/a

Radon Potential - Radon Affected Areas pg 8 Yes n/a n/a n/a

Radon Potential - Radon Protection Measures pg 8 Yes n/a n/a n/a Industrial Land Use

Contemporary Trade Directory Entries

Fuel Station Entries

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Summary

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

Areas of Adopted Green Belt

Areas of Unadopted Green Belt

Areas of Outstanding Natural Beauty

Environmentally Sensitive Areas

Forest Parks

Local Nature Reserves pg 9 1

Marine Nature Reserves

National Nature Reserves

National Parks

Nitrate Sensitive Areas

Nitrate Vulnerable Zones pg 9 1

Ramsar Sites pg 9 1

Sites of Special Scientific Interest pg 9 1

Special Areas of Conservation

Special Protection Areas pg 9 1

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Agency & Hydrological

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

Discharge Consents 1 Operator: Kier Warth Ltd A9NW 655 1 498600 Property Type: Sewage Disposal Works - Other (SE) 273550 Location: Warth Park London Rd, Raunds, Northampton Authority: Environment Agency, Anglian Region Catchment Area: Mid River Nene (Oundle) Reference: Prnnf12044 Permit Version: 1 Effective Date: 27th March 1997 Issued Date: 27th March 1997 Revocation Date: Not Supplied Discharge Type: Sewage Discharges - Final/Treated Effluent - Not Water Company Discharge Freshwater Stream/River Environment: Receiving Water: Roadside Ditch Tributary Hog D Status: Post National Rivers Authority Legislation where issue date > 31/08/1989 Positional Accuracy: Located by supplier to within 100m

Discharge Consents 2 Operator: Mr H Foster A17SE 882 1 497400 Property Type: Sewage Disposal Works - Other (NW) 274500 Location: Cotton Farm, Ringstead, Kettering Authority: Environment Agency, Anglian Region Catchment Area: Not Supplied Reference: Pr5nf2184 Permit Version: 1 Effective Date: 2nd January 1900 Issued Date: 2nd January 1900 Revocation Date: 10th June 1991 Discharge Type: Unknown Discharge Not Supplied Environment: Receiving Water: Not Supplied Status: Pre National Rivers Authority Legislation where issue date < 01/09/1989 Positional Accuracy: Located by supplier to within 100m

Discharge Consents 3 Operator: Evans & Son A14NE 955 1 499000 Property Type: Sewage Disposal Works - Other (E) 274000 Location: Wooton Green Farm, Wooton, Beds, Mk43 9ef Authority: Environment Agency, Anglian Region Catchment Area: Not Supplied Reference: Pr1nfg0458 Permit Version: 1 Effective Date: 1st June 1963 Issued Date: 1st June 1963 Revocation Date: 15th November 1991 Discharge Type: Discharge Of Other Matter-Surface Water Discharge Freshwater Stream/River Environment: Receiving Water: Wooton Brook Status: Pre National Rivers Authority Legislation where issue date < 01/09/1989 Positional Accuracy: Approximate location provided by supplier

Nearest Surface Water Feature A8NE 512 - 498386 (SE) 273518 Pollution Incidents to Controlled Waters 4 Property Type: Not Given A7NE 766 1 497400 Location: Kettering District (SW) 273500 Authority: Environment Agency, Anglian Region Pollutant: Unknown Note: Raunds Hog Dyke Incident Date: 13th August 1992 Incident Reference: 1442 Catchment Area: Not Given Receiving Water: Freshwater Stream/River Cause of Incident: Unknown Incident Severity: Category 2 - Significant Incident Positional Accuracy: Located by supplier to within 100m

River Quality Name: Hog Dyke A9NW 599 1 498441 GQA Grade: River Quality C (SE) 273450 Reach: Headwaters...Sp 974 730 Estimated Distance 5 (km): Flow Rate: Flow less than 0.31 cumecs Flow Type: River Year: 2000

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

River Quality Name: Hog Dyke A7NW 936 1 497234 GQA Grade: River Quality D (SW) 273448 Reach: Sp 974 730...Nene Estimated Distance 1 (km): Flow Rate: Flow less than 0.31 cumecs Flow Type: River Year: 2000

Water Abstractions Operator: Nene & Ouse Water Board A3NW 1133 1 497800 Licence Number: 5/32/09/*g/182 (S) 272800 Permit Version: Not Supplied Location: Well, Cotton Lane, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Public Water Supply Abstraction Type: Not Supplied Source: Well And Borehole Daily Rate (m3): 750 Yearly Rate (m3): 2045700 Details: Fluvial Sand and Gravel; Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: Messrs D & E Tomaschuk A3NW 1154 1 497750 Licence Number: 5/32/09/*s/018 (S) 272790 Permit Version: Not Supplied Location: Hog Dyke At, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 5 Yearly Rate (m3): 120000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: A R C Eastern A16SE 1208 1 497000 Licence Number: 5/32/09/*g/193 (NW) 274500 Permit Version: Not Supplied Location: Gravel Pit, RINGSTEAD Authority: Environment Agency, Anglian Region Abstraction: Sand And Gravel Washing Abstraction Type: Not Supplied Source: Groundwater Fed Reservoir Daily Rate (m3): 1200 Yearly Rate (m3): 4191500 Details: Fluvial Sand and Gravel; Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: F R W Farrington A3NW 1214 1 497900 Licence Number: 5/32/09/*s/100 (S) 272700 Permit Version: Not Supplied Location: Stream At Groug Farm, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 5 Yearly Rate (m3): 681900 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

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

Water Abstractions Operator: Messrs D & E Tomaschuk A3SW 1430 1 497930 Licence Number: 5/32/09/*s/018 (S) 272480 Permit Version: Not Supplied Location: Hog Dyke At, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 5 Yearly Rate (m3): 120000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: F, J & D Willoughby Williams A22SW 1528 1 497100 Licence Number: 5/32/09/*s/205 (NW) 275100 Permit Version: Not Supplied Location: River Nene, GREAT ADDINGTON Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 50 Yearly Rate (m3): 2000000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: Nene & Ouse Water Board A2SE 1548 1 497400 Licence Number: 5/32/09/*g/182 (SW) 272500 Permit Version: Not Supplied Location: Two Wells, Meadow Lane, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Public Water Supply Abstraction Type: Not Supplied Source: Well And Borehole Daily Rate (m3): 750 Yearly Rate (m3): 2045700 Details: Fluvial Sand and Gravel; Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: F, J & D Willoughby Williams A16NE 1568 1 496700 Licence Number: 5/32/09/*s/205 (NW) 274700 Permit Version: Not Supplied Location: River Nene, GREAT ADDINGTON Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 50 Yearly Rate (m3): 2000000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 3 of 17 Agency & Hydrological

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

Water Abstractions Operator: Messrs D & E Tomaschuk A4SW 1626 1 498490 Licence Number: 5/32/09/*s/018 (S) 272340 Permit Version: Not Supplied Location: Hog Dyke At, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 5 Yearly Rate (m3): 120000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: Tithe Farm Ringstead (N) 1699 1 498140 Licence Number: 5/32/09/*G/0222 275600 Permit Version: 1 Location: Borehole - Ringstead Authority: Environment Agency, Anglian Region Abstraction: General Farming And Domestic Abstraction Type: Water may be abstracted from a single point Source: Groundwater Daily Rate (m3): Not Supplied Yearly Rate (m3): Not Supplied Details: Not Supplied Authorised Start: 01 January Authorised End: 31 December Permit Start Date: 15th October 1999 Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: M.W. Holben (N) 1703 1 498200 Licence Number: 5/32/09/*g/196 275600 Permit Version: Not Supplied Location: Ham Lane , RINGSTEAD Authority: Environment Agency, Anglian Region Abstraction: Agriculture (General) Abstraction Type: Not Supplied Source: Well And Borehole Daily Rate (m3): 13 Yearly Rate (m3): 36370 Details: Great Oolite; Status: Perpetuity Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Water Abstractions Operator: Messrs D & E Tomaschuk A4SE 1822 1 499000 Licence Number: 5/32/09/*s/018 (SE) 272350 Permit Version: Not Supplied Location: Hog Dyke At, RAUNDS Authority: Environment Agency, Anglian Region Abstraction: Spray Irrigation Abstraction Type: Not Supplied Source: Stream Daily Rate (m3): 5 Yearly Rate (m3): 120000 Details: Status: Revoked Authorised Start: Not Supplied Authorised End: Not Supplied Permit Start Date: Not Supplied Permit End Date: Not Supplied Positional Accuracy: Located by supplier to within 10m

Groundwater Vulnerability Soil Classification: Soils of High Leaching Potential (H3)- Coarse textured or moderately shallow A13NE 0 1 498050 soils which readily transmit non-absorbed pollutants and liquid discharges but (N) 273904 which have some ability to attenuate absorbed pollutants because of their large clay or organic matter contents Map Sheet: Sheet 31 Bedfordshire Scale: 1:100,000

Drift Deposits None

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 4 of 17 Agency & Hydrological

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

Bedrock Aquifer Designations Aquifer Desination: Unproductive Strata A13NE 0 2 498050 (N) 273904 Superficial Aquifer Designations No Data Available

Extreme Flooding from Rivers or Sea without Defences None

Flooding from Rivers or Sea without Defences None

Areas Benefiting from Flood Defences None

Flood Water Storage Areas None

Flood Defences None

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 5 of 17 Waste

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

Local Authority Landfill Coverage Name: Northamptonshire County Council 0 5 498050 - Has supplied landfill data 273904

Local Authority Landfill Coverage Name: East Northamptonshire District Council 0 6 498050 - Landfill data has been supplied by another authority 273904

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 6 of 17 Geological

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

BGS Recorded Mineral Sites 5 Site Name: Scaley Farm Pit A9NE 956 2 498938 Location: Scalley Farm, Raunds, Northamptonshire (E) 273551 Source: British Geological Survey, National Geoscience Information Service Reference: 120803 Type: Opencast Status: Ceased Operator: Unknown Operator Operator Location: Not Supplied Periodic Type: Jurassic Geology: Cornbrash Formation Commodity: Limestone Positional Accuracy: Located by supplier to within 10m

BGS 1:625,000 Solid Geology Description: Great Oolite A13NE 0 2 498050 (N) 273904 Coal Mining Affected Areas In an area which may not be affected by coal mining

Non Coal Mining Areas of Great Britain No Hazard

Potential for Collapsible Ground Stability Hazards Hazard Potential: Very Low A13NE 0 2 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Compressible Ground Stability Hazards Hazard Potential: No Hazard A13NE 0 2 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Ground Dissolution Stability Hazards Hazard Potential: Very Low A13NW 29 2 498043 Source: British Geological Survey, National Geoscience Information Service (N) 273932

Potential for Ground Dissolution Stability Hazards Hazard Potential: Very Low A13SW 118 2 497969 Source: British Geological Survey, National Geoscience Information Service (SW) 273819

Potential for Ground Dissolution Stability Hazards Hazard Potential: Low A13SE 180 2 498229 Source: British Geological Survey, National Geoscience Information Service (E) 273891

Potential for Landslide Ground Stability Hazards Hazard Potential: Very Low A13NE 0 2 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Running Sand Ground Stability Hazards Hazard Potential: No Hazard A13NE 0 2 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Running Sand Ground Stability Hazards Hazard Potential: Low A13SE 4 2 498052 Source: British Geological Survey, National Geoscience Information Service (SE) 273902

Potential for Running Sand Ground Stability Hazards Hazard Potential: Very Low A13SE 164 2 498203 Source: British Geological Survey, National Geoscience Information Service (E) 273847

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: Moderate A13NE 0 2 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: No Hazard A13SE 4 2 498052 Source: British Geological Survey, National Geoscience Information Service (SE) 273902

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: No Hazard A13SW 118 2 497969 Source: British Geological Survey, National Geoscience Information Service (SW) 273819

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: Low A13SE 164 2 498203 Source: British Geological Survey, National Geoscience Information Service (E) 273847

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: Moderate A13NE 217 2 498176 Source: British Geological Survey, National Geoscience Information Service (NE) 274081

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 7 of 17 Geological

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

Radon Potential - Radon Affected Areas Affected Area: The property is in a radon affected area, as between 5 and 10% of homes are A13NE 0 2 498050 above the action level (N) 273904 Source: British Geological Survey, National Geoscience Information Service

Radon Potential - Radon Protection Measures Protection Measure: Basic radon protective measures are necessary in the construction of new A13NE 0 2 498050 dwellings or extensions (N) 273904 Source: British Geological Survey, National Geoscience Information Service

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 8 of 17 Sensitive Land Use

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

Local Nature Reserves 6 Name: Kinewell Lake A18NW 970 3 497820 Multiple Area: N (N) 274846 Area (m2): 353622.71 Source: Natural England Designation Date: 3rd January 1994

Nitrate Vulnerable Zones 7 Name: Not Supplied A13NE 0 4 498050 Description: NVZ Area (N) 273904 Source: Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA)

Ramsar Sites 8 Name: Upper Nene Valley Gravel Pits A7SE 906 3 497539 Multiple Areas: Y (SW) 273157 Total Area (m2): 13576772.28 Source: Natural England Reference: UK11083 Designation Date: Not Supplied

Sites of Special Scientific Interest 9 Name: Upper Nene Valley Gravel Pits A7SE 906 3 497539 Multiple Areas: Y (SW) 273157 Total Area (m2): 13824194.54 Source: Natural England Reference: 2000494 Designation Details: EC Special Protection Area Designation Date: 24th November 2005 Date Type: Notified Designation Details: Ramsar Site Designation Date: 24th November 2005 Date Type: Notified

Special Protection Areas 10 Name: Upper Nene Valley Gravel Pits A7SE 906 3 497539 Multiple Areas: Y (SW) 273157 Total Area (m2): 13576772.28 Source: Natural England Reference: UK9020296 Designation Date: Not Supplied

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 9 of 17 Data Currency

Agency & Hydrological Version Update Cycle

Contaminated Land Register Entries and Notices Bedford Borough Council - Environmental Health Department April 2011 Annual Rolling Update Huntingdonshire District Council - Environmental Health Services December 2011 Annual Rolling Update Wellingborough Borough Council - Environmental Health Department June 2011 Annual Rolling Update East Northamptonshire District Council - Environmental Health Department November 2011 Annual Rolling Update Kettering Borough Council - Environmental Health Department September 2011 Annual Rolling Update

Discharge Consents Environment Agency - Anglian Region October 2011 Quarterly

Enforcement and Prohibition Notices Environment Agency - Anglian Region November 2011 Quarterly

Integrated Pollution Controls Environment Agency - Anglian Region October 2008 Not Applicable

Integrated Pollution Prevention And Control Environment Agency - Anglian Region October 2011 Quarterly

Local Authority Integrated Pollution Prevention And Control Kettering Borough Council - Environmental Health Department February 2011 Annual Rolling Update Huntingdonshire District Council - Environmental Health Services June 2011 Annual Rolling Update Wellingborough Borough Council - Environmental Health Department June 2011 Annual Rolling Update East Northamptonshire District Council - Environmental Health Department November 2011 Annual Rolling Update Bedford Borough Council - Environmental Health Department September 2011 Annual Rolling Update

Local Authority Pollution Prevention and Controls Kettering Borough Council - Environmental Health Department February 2011 Annual Rolling Update Huntingdonshire District Council - Environmental Health Services June 2011 Annual Rolling Update Wellingborough Borough Council - Environmental Health Department June 2011 Annual Rolling Update East Northamptonshire District Council - Environmental Health Department November 2011 Annual Rolling Update Bedford Borough Council - Environmental Health Department September 2011 Annual Rolling Update

Local Authority Pollution Prevention and Control Enforcements Kettering Borough Council - Environmental Health Department February 2011 Annual Rolling Update Huntingdonshire District Council - Environmental Health Services June 2011 Annual Rolling Update Wellingborough Borough Council - Environmental Health Department June 2011 Annual Rolling Update East Northamptonshire District Council - Environmental Health Department November 2011 Annual Rolling Update Bedford Borough Council - Environmental Health Department September 2011 Annual Rolling Update

Nearest Surface Water Feature Ordnance Survey September 2011 Quarterly

Pollution Incidents to Controlled Waters Environment Agency - Anglian Region September 1999 Not Applicable

Prosecutions Relating to Authorised Processes Environment Agency - Anglian Region November 2011 Monthly

Prosecutions Relating to Controlled Waters Environment Agency - Anglian Region November 2011 Monthly

Registered Radioactive Substances Environment Agency - Anglian Region October 2011 Quarterly

River Quality Environment Agency - Head Office November 2001 Not Applicable

River Quality Biology Sampling Points Environment Agency - Head Office January 2011 Annually

River Quality Chemistry Sampling Points Environment Agency - Head Office January 2011 Annually

Substantiated Pollution Incident Register Environment Agency - Anglian Region - Central Area October 2011 Quarterly Environment Agency - Anglian Region - Northern Area October 2011 Quarterly

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 10 of 17 Data Currency

Agency & Hydrological Version Update Cycle

Water Abstractions Environment Agency - Anglian Region October 2011 Quarterly

Water Industry Act Referrals Environment Agency - Anglian Region October 2011 Quarterly

Groundwater Vulnerability Environment Agency - Head Office January 2011 Not Applicable

Drift Deposits Environment Agency - Head Office January 1999 Not Applicable

Bedrock Aquifer Designations British Geological Survey - National Geoscience Information Service September 2011 Annually

Superficial Aquifer Designations British Geological Survey - National Geoscience Information Service September 2011 Annually

Source Protection Zones Environment Agency - Head Office July 2011 Quarterly

Extreme Flooding from Rivers or Sea without Defences Environment Agency - Head Office November 2011 Quarterly

Flooding from Rivers or Sea without Defences Environment Agency - Head Office November 2011 Quarterly

Areas Benefiting from Flood Defences Environment Agency - Head Office November 2011 Quarterly

Flood Water Storage Areas Environment Agency - Head Office November 2011 Quarterly

Flood Defences Environment Agency - Head Office November 2011 Quarterly

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 11 of 17 Data Currency

Waste Version Update Cycle

BGS Recorded Landfill Sites British Geological Survey - National Geoscience Information Service June 1996 Not Applicable

Historical Landfill Sites Environment Agency - Anglian Region - Central Area October 2011 Quarterly Environment Agency - Anglian Region - Northern Area October 2011 Quarterly

Integrated Pollution Control Registered Waste Sites Environment Agency - Anglian Region October 2008 Not Applicable

Licensed Waste Management Facilities (Landfill Boundaries) Environment Agency - Anglian Region - Central Area October 2011 Quarterly Environment Agency - Anglian Region - Northern Area October 2011 Quarterly

Licensed Waste Management Facilities (Locations) Environment Agency - Anglian Region - Central Area October 2011 Quarterly Environment Agency - Anglian Region - Northern Area October 2011 Quarterly

Local Authority Landfill Coverage Bedford Borough Council - Environmental Health Department May 2000 Not Applicable Bedfordshire County Council (now part of Central Bedfordshire Council) May 2000 Not Applicable Cambridgeshire County Council May 2000 Not Applicable East Northamptonshire District Council - Community Services - Planning Department May 2000 Not Applicable Huntingdonshire District Council - Environmental Health Services May 2000 Not Applicable Kettering Borough Council - Environmental Health Department May 2000 Not Applicable Northamptonshire County Council May 2000 Not Applicable Wellingborough Borough Council May 2000 Not Applicable

Local Authority Recorded Landfill Sites Bedford Borough Council - Environmental Health Department April 2003 Not Applicable Bedfordshire County Council (now part of Central Bedfordshire Council) May 2000 Not Applicable Cambridgeshire County Council May 2000 Not Applicable East Northamptonshire District Council - Community Services - Planning Department May 2000 Not Applicable Huntingdonshire District Council - Environmental Health Services May 2000 Not Applicable Kettering Borough Council - Environmental Health Department May 2000 Not Applicable Northamptonshire County Council May 2000 Not Applicable Wellingborough Borough Council May 2000 Not Applicable

Registered Landfill Sites Environment Agency - Anglian Region - Central Area March 2003 Not Applicable Environment Agency - Anglian Region - Northern Area March 2003 Not Applicable

Registered Waste Transfer Sites Environment Agency - Anglian Region - Central Area March 2003 Not Applicable Environment Agency - Anglian Region - Northern Area March 2003 Not Applicable

Registered Waste Treatment or Disposal Sites Environment Agency - Anglian Region - Central Area March 2003 Not Applicable Environment Agency - Anglian Region - Northern Area March 2003 Not Applicable

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 12 of 17 Data Currency

Hazardous Substances Version Update Cycle

Control of Major Accident Hazards Sites (COMAH) Health and Safety Executive July 2011 Bi-Annually

Explosive Sites Health and Safety Executive January 2011 Bi-Annually

Notification of Installations Handling Hazardous Substances (NIHHS) Health and Safety Executive November 2000 Not Applicable

Planning Hazardous Substance Enforcements Huntingdonshire District Council August 2011 Annual Rolling Update Cambridgeshire County Council December 2011 Annual Rolling Update Bedfordshire County Council (now part of Central Bedfordshire Council) July 2008 Annual Rolling Update Wellingborough Borough Council June 2010 Annual Rolling Update Bedford Borough Council June 2011 Annual Rolling Update East Northamptonshire District Council - Community Services - Planning Department June 2011 Annual Rolling Update Northamptonshire County Council November 2011 Annual Rolling Update Kettering Borough Council September 2011 Annual Rolling Update

Planning Hazardous Substance Consents Huntingdonshire District Council August 2011 Annual Rolling Update Cambridgeshire County Council December 2011 Annual Rolling Update Bedfordshire County Council (now part of Central Bedfordshire Council) July 2008 Annual Rolling Update Wellingborough Borough Council June 2010 Annual Rolling Update Bedford Borough Council June 2011 Annual Rolling Update East Northamptonshire District Council - Community Services - Planning Department June 2011 Annual Rolling Update Northamptonshire County Council November 2011 Annual Rolling Update Kettering Borough Council September 2011 Annual Rolling Update

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 13 of 17 Data Currency

Geological Version Update Cycle

BGS Recorded Mineral Sites British Geological Survey - National Geoscience Information Service October 2011 Bi-Annually

BGS 1:625,000 Solid Geology British Geological Survey - National Geoscience Information Service August 1996 Not Applicable

Brine Compensation Area Cheshire Brine Subsidence Compensation Board November 2002 Not Applicable

Coal Mining Affected Areas The Coal Authority - Mining Report Service August 2011 As notified

Mining Instability Ove Arup & Partners October 2000 Not Applicable

Non Coal Mining Areas of Great Britain British Geological Survey - National Geoscience Information Service February 2011 Not Applicable

Potential for Collapsible Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Compressible Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Ground Dissolution Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Landslide Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Running Sand Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Shrinking or Swelling Clay Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Radon Potential - Radon Affected Areas British Geological Survey - National Geoscience Information Service July 2011 As notified

Radon Potential - Radon Protection Measures British Geological Survey - National Geoscience Information Service July 2011 As notified

Industrial Land Use Version Update Cycle

Contemporary Trade Directory Entries Thomson Directories August 2011 Quarterly

Fuel Station Entries Catalist Ltd - Experian November 2011 Quarterly

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 14 of 17 Data Currency

Sensitive Land Use Version Update Cycle

Areas of Outstanding Natural Beauty Natural England September 2011 Bi-Annually

Environmentally Sensitive Areas Natural England September 2011 Annually

Forest Parks Forestry Commission April 1997 Not Applicable

Local Nature Reserves Natural England September 2011 Bi-Annually

Marine Nature Reserves Natural England September 2011 Bi-Annually

National Nature Reserves Natural England September 2011 Bi-Annually

National Parks Natural England September 2011 Bi-Annually

Nitrate Sensitive Areas Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) March 2003 Not Applicable

Nitrate Vulnerable Zones Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA) February 2011 Annually

Ramsar Sites Natural England September 2011 Bi-Annually

Sites of Special Scientific Interest Natural England September 2011 Bi-Annually

Special Areas of Conservation Natural England September 2011 Bi-Annually

Special Protection Areas Natural England September 2011 Bi-Annually

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 15 of 17 Data Suppliers

A selection of organisations who provide data within this report

Data Supplier Data Supplier Logo

Ordnance Survey

Environment Agency

Scottish Environment Protection Agency

The Coal Authority

British Geological Survey

Centre for Ecology and Hydrology

Countryside Council for Wales

Scottish Natural Heritage

Natural England

Health Protection Agency

Ove Arup

Peter Brett Associates

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 16 of 17 Useful Contacts

Contact Name and Address Contact Details

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

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

3 Natural England Telephone: 0845 600 3078 Fax: 01733 455103 Northminster House, Northminster Road, Peterborough, Cambridgeshire, Email: [email protected] PE1 1UA Website: www.naturalengland.org.uk

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

5 Northamptonshire County Council Telephone: 01604 236236 Website: www.northamptonshire.gov.uk County Hall, Northampton, Northamptonshire, NN1 1DN

6 East Northamptonshire District Council - Community Telephone: 01832 742000 Fax: 01832 000000 Services - Planning Department Website: www.east-northamptonshire.gov.uk East Northampton House, Cedar Drive, Thrapston, Kettering, Northamptonshire, NN14 4LZ

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

- Landmark Information Group Limited Telephone: 0844 844 9952 Fax: 0844 844 9951 The Smith Centre, Henley On Thames, Oxfordshire, RG9 6AB Email: [email protected] Website: www.landmarkinfo.co.uk

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

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 17 of 17

Site Sensitivity Map - Segment A13

Order Details Order Number: 37137693_1_1 Customer Ref: 11093 National Grid Reference: 498050, 273900 Slice: A Site Area (Ha): 0.01 Plot Buffer (m): 250 Site Details Site at 498050, 273900

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

A Landmark Information Group Service v46.0 04-Jan-2012 Page 1 of 1

Index Map

For ease of identification, your site and buffer have been split into Slices, Segments and Quadrants. These are illustrated on the Index Map opposite and explained further below.

Slice Each slice represents a 1:10,000 plot area (2.7km x 2.7km) for your site and buffer. A large site and buffer may be made up of several slices (represented by a red outline), that are referenced by letters of the alphabet, starting from the bottom left corner of the slice "grid". This grid does not relate to National Grid lines but is designed to give best fit over the site and buffer.

Segment A segment represents a 1:2,500 plot area. Segments that have plot files associated with them are shown in dark green, others in light blue. These are numbered from the bottom left hand corner within each slice.

Quadrant A quadrant is a quarter of a segment. These are labelled as NW, NE, SW, SE and are referenced in the datasheet to allow features to be quickly located on plots. Therefore a feature that has a quadrant reference of A7NW will be in Slice A, Segment 7 and the NW Quadrant.

A selection of organisations who provide data within this report:

Envirocheck reports are compiled from 136 different sources of data.

Client Details Dr D Blythe, DAB Geotechnics, 3, Tweed Avenue, Ellington, MORPETH, Northumberland, NE61 5ES

Order Details Order Number: 37137693_1_1 Customer Ref: 11093 National Grid Reference: 498050, 273900 Site Area (Ha): 0.01 Search Buffer (m): 1000

Site Details Site at 498050, 273900

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

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You will pay the administrator appointed over You or Therefore, save as set out in clause 6.l in "Intellectual Property Rights" means copyright, Order and Our privacy policy, which is Content be made that would or might be Fees at the rates set out in Our or Our any part of Your undertaking or assets respect of risk assessments and patent, design right (registered or unregistered), available on the Website, constitute the deemed to be disparaging to Us, the Authorised Reseller's invoice within 30 or shall pass a resolution for winding professional opinions, We do not warrant service or trade mark (registered or entire agreement between the parties Suppliers or any of them. You shall not be days of the date of each invoice without up (otherwise than for the purpose of a the accuracy or completeness of any unregistered), database right or other data relating to the supply of Services to You by entitled to resell or rent any Content or deduction, counterclaim or set off. 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Page 2 of 3 reported on is carried out as part of any agree to the limitations and exclusions of reasonably to have been known to the Environmental Protection Act 1990 You the rights of termination stated in clause Services offered by Us and We do not liability set out in this clause 6. First Purchaser or the First shall ensure that they advise Us within a 4.a and in addition shall not prevent Us warrant that all land uses or features Purchaser's Lender prior to the maximum period of two months from from: whether past or current will be identified in 7. Contribution purchase of the Report; (6) any receipt of such communication. This i. applying for injunctive relief in the case the Services. The Services do not include condition which is caused by acts of clause 7.h and the service of any notice a. 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In the event the First Purchaser or First such complaints in writing as soon as do not guarantee that an insurance policy indirectly caused by or contributed to 1999. Notwithstanding any other provisions Purchaser's Lender wishes to claim any practicably possible. will be available on a Property Site. You or arising from ionising radiations or of the Agreement, We may rescind or vary Contribution, it shall notify Us in writing b. If any dispute arises out of or in connection acknowledge and agree that all decisions contamination by radioactivity from the Agreement in accordance with its within 3 months of the date of the Notice. with the Terms of the Agreement or their with regard to the offer of insurance any nuclear fuel or from any nuclear terms without the consent of the Suppliers The First Purchaser or First Purchaser's validity ("Dispute") the parties undertake, policies for any premises will be made waste from the combustion of nuclear and accordingly section 2(1) of the Lender (as applicable) shall comply with all subject to clause 10.c, that prior to solely at the discretion of the insurers and fuel or the radioactive toxic explosive Contracts (Rights of Third Parties) Act Our reasonable requirements with regard commencement of court proceedings they We accept no liability in this regard. The or other hazardous properties of any 1999 shall not apply. to the commission and conduct of the will negotiate in good faith to settle such provision of a Report does not constitute explosive nuclear assembly or nuclear remediation works to be carried out under Dispute by mediation in accordance with e. You shall ensure that each End User any indication by Us that insurance will be component thereof; (2) asbestos the Notice, and in the event the First the Centre for Effective Dispute Resolution complies with and is bound by the Terms available on the Property Site. arising out of or related in any way to Purchaser or First Purchaser's Lender (as Model Mediation Procedure as in force and shall procure that We may in Our own asbestos or asbestos-containing l. We may provide You with professional applicable) does not do so, including from time to time, which Procedure is right enforce such terms and conditions materials on or in structures or opinions or a risk assessment in a Report. without limitation, obtaining Our prior deemed to be incorporated by reference against the End User pursuant to the services serving the structures; (3) You acknowledge and agree that We shall written consent to any estimates for such into this clause. Unless otherwise agreed Contracts (Rights of Third Parties) Act naturally occurring materials arising carry out (or procure that third parties carry works or complying with any other between the parties, the mediator will be 1999. You shall be responsible for End from the presence or required removal out) such assessment with reasonable skill reasonable request by Us, We shall not be nominated by the Centre for Effective User's compliance with the Terms and You of naturally occurring materials except and care and that We shall be liable where required to pay any Contribution. Dispute Resolution. To initiate the shall be liable for all breaches of the Terms in circumstances where such any such risk assessment is carried out Notwithstanding the payment of the mediation a party shall give notice in by the End Users as if they were breaches materials are present in negligently. Notwithstanding the foregoing Contribution by Us the First Purchaser or writing to the other party to the dispute by You. concentrations which are in excess of We shall not be liable for any inaccurate First Purchaser's Lender as applicable requesting a mediation. The mediation will their natural concentration; (4) f. The Agreement and any non-contractual statement, opinion or risk rating in a Report shall take all reasonable steps to mitigate start not later than 21 days after the date of intentional non-compliance arising obligations arising out of or in connection which resulted from a reasonable any costs incurred in connection with the service of such notice. If the Dispute has from the intentional disregard of or with it shall be governed by and construed interpretation of the Content. conduct of works required under the terms not been resolved to the mutual knowing wilful or deliberate non- in accordance with the laws of England m. Neither You, nor any End User or any of any Notice. satisfaction of the parties within 60 days compliance by any owner or occupier and, subject to clause 10.b, each party other person may rely on a Service more h. In the event that the First Purchaser or (or such other period as they shall agree) irrevocably submits to the exclusive than 12 months after it was originally of the Property Site with any statute, after the date of service of such notice then regulation, administrative complaint, First Purchaser's Lender receives any jurisdiction of the courts of England and provided. communication from a statutory authority either party may refer the Dispute to the Wales. notice of violation, or notice letter of courts in accordance with clause 11.f. n. You shall use all reasonable endeavours to any Regulatory Authority; (5) any to the effect that there is an intent to serve ensure that End Users acknowledge and condition which is known or ought a notice received under Part IIA of the c. Clause 10.b shall be without prejudice to Landmark Information Group Limited, 7 Abbey Court, Eagle Way, Exeter, EX2 7HY Email: [email protected] © Landmark Information Group Limited Order Number: 37137693 A Landmark Information Group Service

Page 3 of 3 Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

Warning of flooding from rivers Reproduced with the Permission of Controller of H. M. Stationery Office © Crown Copyright. All rights reserved. Licence No. WL1005542 DAB Geotechnics.

Extracts of Environment Agency Flood & Flood Warning Maps (from Environment Agency internet website) DAB Geotechnics Proposed Ringstead Grange Quarry Date: January 2012

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX B

Correspondence with East Northamptonshire Council

DABGeot/11093/Final

View message - Webmail - Email - Messaging - Services - O2 - [email protected]

Hello DAVID Sign Out

O2 Business

My O2 O2 Webmail Get your email forwarded to your mobile with O2 Email to Mobile View my mobile bill [email protected] My personal details Inbox Compose Folders Notifications Settings | Webmail Help My Business Account My broadband Reply Reply to All Forward Delete Move message to Please select... Email Previous email Next email O2 Webmail | | O2 Email to Mobile From: Mandy Dennis [[email protected]] (save address) To: "'[email protected]'" Calendar Subject: RE: Private Water Supplies Online Address Book Date: Jan 4, 2012 12:17 My Online Accounts Send a free text message Dear David,

Bluebook We have no records of any private water supplies within 1km of the boundary of the site as marked on the plan. My picture messages Regards Blueroom Mandy Mandy Dennis Environmental Protection Officer East Northamptonshire Council 01832 742037

From: Customer Services Sent: 03 January 2012 09:16 To: Environmental Services Subject: FW: Private Water Supplies

From: David Blythe [mailto:[email protected]] Sent: 27 December 2011 12:08 To: Customer Services Subject: Private Water Supplies

Dear Sir/Madam,

I am acting on behalf of Mick George Ltd. This company proposes to develop a new quarry on land to the south of Ringstead Grange Farm. In order to assess the possible impact of this development on surface and groundwaters, I should be grateful if you could provide details of any private water supplies within the area that extends up to 1km from its boundary (e.g. location, abstractor's name, volume and use. I appreciate that you may not be able to supply all of this information for reasons of confidentiality.) The attached plan shows the site boundary and the corresponding search area.

Yours faithfully,

David Blythe

DAB Geotechnics

______

Warning: Although East Northamptonshire Council has taken reasonable precautions to ensure no viruses are present in this e-mail, the Council cannot accept responsibility for any loss or damage arising from the use of this e-mail or attachments. This e-mail, including any attachments, is intended for the exclusive use of the addressee. It may contain information which is legally privileged, confidential and exempt from disclosure. Any views or opinions expressed in this e-mail do not necessarily represent those of East Northamptonshire District Council and are not to be relied upon without subsequent written confirmation by an authorised representative. If you are not the addressee any disclosure, reproduction, distribution, forwarding or other dissemination or use is strictly prohibited. If you have received this in error please notify East Northamptonshire District Council.

East Northamptonshire Council, Cedar Drive, Northants, NN14 4LZ. Telephone +44 (0) 1832 742000 ______

http://www.mail.o2.co.uk/...k&sh=&fp=INBOX&mappos=2&fi=&bid=&u=davidblythe735822&an=davidblythe735822%40o2.co.uk&t=75d21&uid=92&pid=11&ss=[04/01/2012 17:44:33]

Site Boundary

Search Area

1km

Mick George Ltd. Proposed Ringstead Grange Quarry

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX C

Scoping Opinion from the Environment Agency

DABGeot/11093/Final

Northamptonshire County Council: Our ref: AN/2011/113241/01-L02 Planning Development Control Your ref: 11/0005.SCO/FRI116 PO Box 163 County Hall Date: 08 November 2011 Northampton NN1 1AX

FAO Mr P Watson

Dear Sir

Proposals for scope and content of an application for a proposed limestone quarry including extraction of clay and the deposit of inert waste for restoration purposes Ringstead Grange Ringstead

Thank you for your Environmental Impact Assessment (EIA) Scoping consultation, which was received on 17 October 2011.

We have reviewed the scoping report submitted and our technical comments detailing the information we consider should be provided in the Environmental Statement (ES) are provided below.

Technical comments and advice

Hydrology and Hydrogeology

Sections 17 and 18 of the Scoping Opinion acknowledges that the hydrology and hydrogeology of the site needs to be investigated to provide baseline conditions and identify any water features which should be provided in a Flood Risk Assessment (FRA).

From the information provided we can confirm that the site is greater than 1.0 ha and lies within Flood Zones 1 (low probability of river and sea flooding as defined in Annex D Planning Policy Statement 25 ‘Development and Flood Risk’ (PPS25)).

In order to fully assess the issue of flood risk, a fully compliant PPS 25 - Annex E FRA must be undertaken and submitted with any planning application, which considers and quantifies the different types of flooding as well as addressing the surface water drainage for the development. Please note the FRA should address the various phases of development (from mineral extraction through to restoration). The FRA should form part of the EIA or be submitted as a standalone

Environment Agency Customer services line: 03708 506 506 Nene House (Pytchley Lodge Industrial Estate), Weekday daytime calls to 0370 numbers cost 8p plus up to Pytchley Lodge Road, Kettering, Northants, NN15 6JQ 6p per minute from BT Weekend Unlimited. Email: [email protected] Mobile and other providers’ charges may vary. www.environment-agency.gov.uk

Cont/d.. document.

General FRA comments The FRA must consider and quantify the different types of flooding to demonstrate that flood risk is not increased by the proposed development and where possible, reduced. Surface water run-off issues are a key factor for consideration. Any FRA must demonstrate that surface water run-off can be managed for both, construction and restoration and that the proposed surface water drainage system can cope with 1 in 100 probability plus climate change rainfall event without increasing flood risk to the site, surrounding area and third parties.

The FRA must also demonstrate that construction and post development run-off does not exceed pre-development run-off. Within the FRA, surface water run-off rates for the existing and developed site for the 1 in 1 probability rainfall event, the 1 in 30 probability rainfall event and the 1 in 100 probability rainfall event and the attenuation volumes required including an allowance for climate change should be stated. In addition, any FRA must confirm whether the site run-off will be restricted to the Qbar rate for all events or the Q1 for the 1 in 1 probability rainfall event, Q30 for the 1 in 30 probability rainfall event and Q100 for the 1 in 100 probability rainfall event using a complex control.

Any attenuation required should be provided in line with the requirements of PPS25 and Preliminary Rainfall Runoff Management for New Development Revision D. The drainage scheme proposed should provide a sustainable drainage strategy to include SUDS elements with attenuation. The maintenance and/or adoption proposals for every element of the surface water drainage system proposed on the site should be considered for the lifetime of the development and the residual risk of flooding addressed.

The FRA should also consider the possibility that the surface water system may fail / become blocked. Overland floodwater flood water should be routed away from vulnerable areas. For acceptable depths and rates of flow, please refer to Environment Agency and Defra document FD2320/TR2 “Flood Risk Assessment Guidance for New Development Phase 2”. Further consideration should be given to safe access and egress for emergency services when site is flooded.

Environmental permitting

The restoration by inert landfilling element of development associated with this development will require an Environmental Permit under the Environmental Permitting Regulations 2010, from the Environment Agency, unless an exemption applies. The Applicant is advised to contact the Environment Agency on 08708 506 506 for further advice and to discuss the issues likely to be raised. You should be aware that the permit may not be granted. Additional ‘Environmental Permitting Guidance’ can be accessed via our main website ( http://www.environment- agency.gov.uk ).

We ask that our Pollution Prevention Guidelines, are considered. These guidance notes are available to download from: http://www.environment-agency.gov.uk/business/topics/pollution/39083.aspx

The comments we set out above are without prejudice to future decisions we make regarding any applications subsequently made to us for our permits or consents for operations at the site.

Cont/d.. 2

Should you require any additional information, or to discuss matters further, please do not hesitate to contact me on the number below.

Yours sincerely

Kerrie Ginns Planning Liaison Officer Direct dial 01536 385159 Direct e-mail [email protected]

Awarded to the Planning and Corporate Services Department of Anglian Region, Northern Area

End 3

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX D

1/10,000 Scale Geological Maps

DABGeot/11093/Final

Geology 1:10,000 Maps Legends

Artificial Ground and Landslip Map Lex Code Rock Name Rock Type Min and Max Age Geology 1:10,000 Maps Colour This report contains geological map extracts taken from the BGS Digital Geological map of Great Britain at 1:10,000 scale and is WMGR Infilled Ground Artificial Deposit Present Day - Present designed for users carrying out preliminary site assessments who Day require geological maps for the area around a site. This mapping LSGR Landscaped Ground Unknown/Unclassifie Present Day - Present may be more up to date than previously published paper maps. (Undivided) d Entry Day The various geological layers - artificial and landslip deposits, WGR Worked Ground (Undivided) Void Present Day - Present superficial geology and solid (bedrock) geology are displayed in Day separate maps, but superimposed on the final 'Combined Surface MGR Made Ground (Undivided) Artificial Deposit Present Day - Present Geology' map. All map legends feature on this page. Day Please Note: Not all of the layers have complete nationwide DDGR Disturbed Ground Unknown/Unclassifie Present Day - Present coverage, so availability of data for relevant map sheets is (Undivided) d Entry Day indicated below.

Superficial Geology Geology 1:10,000 Maps Coverage Map ID: Map ID: 1 Map Lex Code Rock Name Rock Type Min and Max Age Map Name: SP97NE Map Name: SP97SE Colour Map Date: 2009 Map Date: 1961 Bedrock Geology: Available Bedrock Geology: Available ALV Alluvium Clay and Silt Flandrian - Flandrian Superficial Geology: Available Superficial Geology: Available Artificial Geology: Available Artificial Geology: Available Faults: Available Faults: Available ECTN Ecton Member Sand and Gravel Devensian - Landslip: Not Available Landslip: Not Available Devensian Rock Segments: Not Available Rock Segments: Not Available ODT Oadby Member Diamicton Anglian - Anglian

BOZE Bozeat Till Diamicton Quaternary - Quaternary GFDU Glaciofluvial Deposits Sand and Gravel Quaternary - Quaternary

Bedrock and Faults Geology 1:10,000 Maps - Slice A Map Lex Code Rock Name Rock Type Min and Max Age Colour

KLS Kellaways Sand Member Sandstone and Callovian - Callovian Siltstone, Interbedded KLC Kellaways Clay Member Mudstone Callovian - Callovian

OXC Oxford Clay Formation Mudstone Oxfordian - Callovian

CB Cornbrash Formation Limestone Callovian - Bathonian

BWC Blisworth Clay Formation Mudstone Bathonian - Bathonian

BWL Blisworth Limestone Limestone Bathonian - Bathonian Formation Order Details WBRO Wellingborough Limestone INTERBEDDED Bathonian - Bathonian Order Number: 37137693_1_1 Member LIMESTONE AND Customer Ref: 11093 MUDSTONE National Grid Reference: 498050, 273900 RLD Rutland Formation Mudstone Bathonian - Bajocian Slice: A Site Area (Ha): 0.01 Search Buffer (m): 1000 STAM Stamford Member Sandstone and Bathonian - Bajocian Siltstone, Site Details Interbedded Site at 498050, 273900 NS Northampton Sand Ooidal Ironstone Aalenian - Aalenian Formation WHM Whitby Mudstone Formation Mudstone Toarcian - Toarcian

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

A Landmark Information Group Service v46.0 04-Jan-2012 Page 1 of 5 Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Envirocheck ® Report: BGS Boreholes Datasheet

Order Details: Order Number: 37137693_1_1 Customer Reference: 11093 National Grid Reference: 498050, 273900 Slice: A Site Area (Ha): 0.01 Borehole Search Buffer (m): 1000

Site Details: Site at 498050, 273900

Client Details: Dr D Blythe DAB Geotechnics 3, Tweed Avenue Ellington MORPETH Northumberland NE61 5ES

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service BGS Boreholes Summary

Page On Site 0 to 250m 251 to 500m 501 to 1000m Data Type Number

BGS Boreholes pg 1 None None 1 29

Introduction

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

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

Copyright Notice

© Landmark Information Group Limited 2012. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property of Landmark Information Group Limited ("Landmark") and several other Data Providers, including (but not limited to) Ordnance Survey, British Geological Survey, the Environment Agency and Natural England, and must not be reproduced in whole or in part by photocopying or any other method. The Report is supplied under Landmark's Terms and Conditions accepted by the Customer. A copy of Landmark's Terms and Conditions can be found with the index Map for this report. Additional copies of the Report may be obtained from Landmark, subject to Landmark's charges in force from time to time. The Copyright, design rights and any other intellectual rights shall remain the exclusive property of Landmark and /or other Data providers, whose Copyright material has been included in this Report.

A copy of the BGS Borehole Ordering Form is available to download from the Support section of www.envirocheck.co.uk.

Report Version v47.0

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service BGS Boreholes Detail

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

BGS Boreholes 11 BGS Reference: Sp97se16 A14NW 453 2 498500 Drilled Length (m): 31.39 (E) 273950 Borehole Name: Addington Ii Sa 12d/2150

BGS Boreholes 12 BGS Reference: Sp97se4 A12NE 519 2 497540 Drilled Length (m): 6 (W) 274000 Borehole Name: Caprons Ringstead Royalty

BGS Boreholes 13 BGS Reference: Sp97se48 A18NE 727 2 498080 Drilled Length (m): 5 (N) 274630 Borehole Name: Caprons Ringstead Estate Th.2

BGS Boreholes 14 BGS Reference: Sp97se47 A17SE 744 2 497440 Drilled Length (m): 5.03 (NW) 274330 Borehole Name: Caprons Ringstead Estate Th.1

BGS Boreholes 15 BGS Reference: Sp97se111 A7NE 797 2 497450 Drilled Length (m): 4.9 (SW) 273380 Borehole Name: Raunds

BGS Boreholes 16 BGS Reference: Sp97se517 A7NW 803 2 497340 Drilled Length (m): Not Supplied (SW) 273530 Borehole Name: Stanwick Merrick Land 84

BGS Boreholes 17 BGS Reference: Sp97se534 A7NE 814 2 497420 Drilled Length (m): Not Supplied (SW) 273390 Borehole Name: Stanwick Merrick Land 101

BGS Boreholes 17 BGS Reference: Sp97se506 A7NE 825 2 497440 Drilled Length (m): Not Supplied (SW) 273350 Borehole Name: Stanwick Arc Land 73

BGS Boreholes 18 BGS Reference: Sp97se519 A12SW 831 2 497290 Drilled Length (m): Not Supplied (SW) 273570 Borehole Name: Stanwick Merrick Land 86

BGS Boreholes 19 BGS Reference: Sp97se516 A7NW 838 2 497360 Drilled Length (m): Not Supplied (SW) 273430 Borehole Name: Stanwick Merrick Land 83

BGS Boreholes 20 BGS Reference: Sp97se518 A7NW 859 2 497310 Drilled Length (m): Not Supplied (SW) 273470 Borehole Name: Stanwick Merrick Land 85

BGS Boreholes 21 BGS Reference: Sp97se1 A18NE 863 2 498300 Drilled Length (m): 5 (N) 274730 Borehole Name: Caprons Ringstead Estate No.3

BGS Boreholes 22 BGS Reference: Sp97se521 A12SW 881 2 497220 Drilled Length (m): Not Supplied (W) 273610 Borehole Name: Stanwick Merrick Land 88

BGS Boreholes 23 BGS Reference: Sp97se520 A7NW 888 2 497250 Drilled Length (m): Not Supplied (SW) 273520 Borehole Name: Stanwick Merrick Land 87

BGS Boreholes 24 BGS Reference: Sp97se505 A7NE 895 2 497440 Drilled Length (m): Not Supplied (SW) 273250 Borehole Name: Stanwick Arc Land 72

BGS Boreholes 25 BGS Reference: Sp97se507 A7NW 895 2 497340 Drilled Length (m): Not Supplied (SW) 273360 Borehole Name: Stanwick Arc Land 74

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 1 of 3 BGS Boreholes Detail

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

BGS Boreholes 25 BGS Reference: Sp97se535 A7NW 899 2 497320 Drilled Length (m): Not Supplied (SW) 273380 Borehole Name: Stanwick Merrick Land 102

BGS Boreholes 26 BGS Reference: Sp97se504 A7SE 902 2 497500 Drilled Length (m): Not Supplied (SW) 273190 Borehole Name: Stanwick Arc Land 71

BGS Boreholes 27 BGS Reference: Sp97se116 A19SE 916 2 498860 Drilled Length (m): 8.9 (NE) 274330 Borehole Name: Raunds

BGS Boreholes 28 BGS Reference: Sp97se515 A7NW 927 2 497260 Drilled Length (m): Not Supplied (SW) 273420 Borehole Name: Stanwick Merrick Land 82

BGS Boreholes 29 BGS Reference: Sp97se522 A7NW 927 2 497190 Drilled Length (m): Not Supplied (W) 273560 Borehole Name: Stanwick Merrick Land 89

BGS Boreholes 30 BGS Reference: Sp97se514 A7NW 951 2 497210 Drilled Length (m): Not Supplied (SW) 273460 Borehole Name: Stanwick Merrick Land 81

BGS Boreholes 31 BGS Reference: Sp97se501 A7NW 959 2 497350 Drilled Length (m): Not Supplied (SW) 273250 Borehole Name: Stanwick Arc Land 68

BGS Boreholes 32 BGS Reference: Sp97se513 A7SE 971 2 497440 Drilled Length (m): Not Supplied (SW) 273150 Borehole Name: Stanwick Arc Land 80

BGS Boreholes 33 BGS Reference: Sp97se502 A7NW 976 2 497240 Drilled Length (m): Not Supplied (SW) 273360 Borehole Name: Stanwick Arc Land 69

BGS Boreholes 33 BGS Reference: Sp97se523 A7NW 980 2 497210 Drilled Length (m): Not Supplied (SW) 273400 Borehole Name: Stanwick Merrick Land 90

BGS Boreholes 34 BGS Reference: Sp97se508 A7SE 983 2 497500 Drilled Length (m): Not Supplied (SW) 273090 Borehole Name: Stanwick Arc Land 75

BGS Boreholes 35 BGS Reference: Sp97se525 A12SW 995 2 497100 Drilled Length (m): Not Supplied (W) 273610 Borehole Name: Stanwick Merrick Land 92

BGS Boreholes 36 BGS Reference: Sp97se526 A7NW 996 2 497120 Drilled Length (m): Not Supplied (W) 273550 Borehole Name: Stanwick Merrick Land 93

BGS Boreholes 37 BGS Reference: Sp97se527 A7NW 1000 2 497140 Drilled Length (m): Not Supplied (SW) 273490 Borehole Name: Stanwick Walker Land 94

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 2 of 3 Data Currency and Contact Details

BGS Boreholes Version Update Cycle

BGS Boreholes British Geological Survey - National Geoscience Information Service October 2011 Quarterly

Contact Details Contact Logo

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

- Landmark Information Group Limited The Smith Centre, Henley On Thames, Oxfordshire, RG9 6AB Telephone: 0844 844 9952 Fax: 0844 844 9951 Email: [email protected] Website: www.landmarkinfo.co.uk

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 3 of 3 Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX E

BGS Archive Borehole Records

DABGeot/11093/Final

Page 1 | Borehole SP97NE164 | Borehole Logs

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http://scans.bgs.ac.uk/sobi_scans/boreholes/363270/images/10669458.png 16/12/2011 Page 1 | Borehole SP97SE4 | Borehole Logs

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http://scans.bgs.ac.uk/sobi_scans/boreholes/363285/images/10669465.html[16/12/2011 10:38:16] Page 1 | Borehole SP97SE16 | Borehole Logs

http://scans.bgs.ac.uk/sobi_scans/boreholes/363285/images/10669465.html[16/12/2011 10:38:16] Page 1 | Borehole SP97SE47 | Borehole Logs

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http://scans.bgs.ac.uk/sobi_scans/boreholes/363316/images/10669495.html[16/12/2011 10:25:57] Page 1 | Borehole SP97SE48 | Borehole Logs

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http://scans.bgs.ac.uk/sobi_scans/boreholes/363317/images/10669495.html[16/12/2011 10:27:18] Page 1 | Borehole SP97SE112 | Borehole Logs

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http://scans.bgs.ac.uk/sobi_scans/boreholes/363393/images/10669584.html[16/12/2011 10:33:21] Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX F

Mining and Ground Stability Report

DABGeot/11093/Final

Envirocheck ® Report: Mining and Ground Stability Datasheet

Order Details: Order Number: 37137693_1_1 Customer Reference: 11093 National Grid Reference: 498050, 273900 Slice: A Site Area (Ha): 0.01 Search Buffer (m): 1000

Site Details: Site at 498050, 273900

Client Details: Dr D Blythe DAB Geotechnics 3, Tweed Avenue Ellington MORPETH Northumberland NE61 5ES

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Contents

Report Section and Details Page Number

Summary -

The Summary section provides an overview of the data contained within the report, detailing the number of data set features or the existence of a data set in relation to the buffer selected. For ease of reference, the report is broken down into 4 sections of data; Mining and Natural Cavities Data, Historical Land Use Information (1:2,500), Historical Land Use Information (1:10,000) and Ground Stability Data (1:50,000). Mining and Natural Cavities Data 1

The Mining and Natural Cavities Data section features data sets related to the existence of mining areas and their potential hazards; and details of naturally formed cavities. Data sets within this section are not plotted, with the exception of BGS Recorded Mineral Sites and Potential Mining Areas which feature on the Historical Land Use Information (1:10,000) map. Historical Land Use Information (1:2,500) 2

The Historical Land Use Information (1:2,500) section contains data captured from analysis carried out by Landmark of 1:1,250 and 1:2,500 scale historical Ordnance Survey mapping, identifying areas where, historically, the land uses were potentially contaminative. For the purpose of this Envirocheck module, only historical data relating to mining and ground stability has been included and plotted on the corresponding Historical Land Use Information (1:2,500) map. This section also includes the Subterranean Features data set, which details various man-made and man-used underground spaces obtained from the Subterranea Britannica society. Historical Land Use Information (1:10,000) 3

The Historical Land Use (1:10,000) section covers data captured from the systematic analysis carried out by Landmark of 1:10, 560 and 1:10,000 scale historical Ordnance Survey mapping dating back to the mid-19th century, identifying potentially contaminative past industrial land uses. For the purpose of this Envirocheck module, only data relating to mining and ground stability has been included and plotted on the accompanying Historical Land Use Information (1:10,000) map. Ground Stability Data (1:50,000) 4

The Ground Stability (1:50,000) section includes the BGS Geosure data suite, reporting features to 250m and plotted onto 3 separate maps. Also reported is brine subsidence, brine mining and salt mining data sets, of which Brine Pumping and Salt Mining Related Features are plotted, and subsidence insurance claims and insurance investigations data, which is not plotted. Motion Map Data (1:2,500) -

The Motion Map Data (1:2,500) section contains data which is plotted to indicate long-term stability trends from analysis of satellite radar data. Historical Map List 5

The Historical Map List section details the historical mapping that has been analysed for your site, in relation to the Historical Land Use Information sections. Data Currency 6

Data Suppliers 8

Useful Contacts 9

Copyright Notice

© Landmark Information Group Limited 2012. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property of Landmark Information Group Limited ("Landmark") and several other Data Providers, including (but not limited to) Ordnance Survey, British Geological Survey, and the Environment Agency, and must not be reproduced in whole or in part by photocopying or any other method. The Report is supplied under Landmark's Terms and Conditions accepted by the Customer. A copy of Landmark's Terms and Conditions can be found with the Index Map for this report. Additional copies of the Report may be obtained from Landmark, subject to Landmark's charges in force from time to time. The Copyright, design rights and any other intellectual rights shall remain the exclusive property of Landmark and /or other Data providers, whose Copyright material has been included in this Report.

© Copyright Peter Brett Associates LLP & DCLG 2011. All rights reserved.

The brine subsidence data relating to the Driotwich area as provided in this report is derived from JPB studies and physical monitoring undertaken annually over more than 35 years. For more detailed interpretation contact [email protected]. JPB retain the copyright and intellectual rights to this data and accept no liability for any loss or damage, including in direct or consequential loss, arising from the use of this data.

Report Version v47.0

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Summary

Page On Site 0 to 250m 251 to 500m 501 to 1000m Data Type Number Mining and Natural Cavities Data

BGS Recorded Mineral Sites pg 1 1

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

Man Made Mining Cavities

Mining Instability n/a n/a n/a

Natural Cavities

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

Potential Mining Areas Historical Land Use Information (1:2,500)

Extractive Industries or Potential Excavations from 1855-1909 n/a n/a

Extractive Industries or Potential Excavations from 1893-1915 n/a n/a

Extractive Industries or Potential Excavations from 1906-1937 n/a n/a

Extractive Industries or Potential Excavations from 1924-1949 n/a n/a

Extractive Industries or Potential Excavations from 1950-1980 pg 2 1 n/a n/a

Subterranean Features n/a n/a Historical Land Use Information (1:10,000)

Air Shafts

Disturbed Ground

General Quarrying

Heap, unknown constituents

Mineral Railway pg 3 1

Mining & quarrying general

Mining of coal & lignite

Quarrying of sand & clay, operation of sand & gravel pits pg 3 3

Former Marshes

Potentially Infilled Land (Non-Water)

Potentially Infilled Land (Water)

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Summary

Page On Site 0 to 250m 251 to 500m 501 to 1000m Data Type Number Ground Stability Data (1:50,000)

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

Brine Pumping Related Features

Brine Subsidence Solution Area

Potential for Collapsible Ground Stability Hazards pg 4 Yes n/a n/a

Potential for Compressible Ground Stability Hazards pg 4 Yes n/a n/a

Potential for Ground Dissolution Stability Hazards pg 4 Yes n/a n/a

Potential for Landslide Ground Stability Hazards pg 4 Yes n/a n/a

Potential for Running Sand Ground Stability Hazards pg 4 Yes Yes n/a n/a

Potential for Shrinking or Swelling Clay Ground Stability Hazards pg 4 Yes Yes n/a n/a

Salt Mining Related Features

Subsidence Insurance Claims n/a n/a

Subsidence Investigations n/a n/a Motion Map Data (1:2,500)

Motion Map n/a n/a

Report Version v47.0

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Mining and Natural Cavities Data

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

BGS Recorded Mineral Sites 1 Site Name: Scaley Farm Pit A9NE 956 1 498938 Location: Scalley Farm, Raunds, Northamptonshire (E) 273551 Source: British Geological Survey, National Geoscience Information Service Reference: 120803 Type: Opencast Status: Ceased Operator: Unknown Operator Operator Location: Not Supplied Periodic Type: Jurassic Geology: Cornbrash Formation Commodity: Limestone Positional Accuracy: Located by supplier to within 10m

Coal Mining Affected Areas In an area which may not be affected by coal mining

Non Coal Mining Areas of Great Britain No Hazard

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 1 of 9 Historical Land Use Information (1:2,500)

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

Extractive Industries or Potential Excavations from 1950-1980 2 Use: Pond A13NE 228 - 498135 First Map Published 1972 (N) 274115 Date: Last Map Published N/A Date:

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 2 of 9 Historical Land Use Information (1:10,000)

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

Mineral Railway 3 Use: Not Supplied A13NW 296 - 497774 Date of Mapping: 1887 (W) 274009

Quarrying of sand & clay, operation of sand & gravel pits 4 Use: Not Supplied A7SE 946 - 497527 Date of Mapping: 1991 (SW) 273117

Quarrying of sand & clay, operation of sand & gravel pits 5 Use: Not Supplied A17NE 995 - 497633 Date of Mapping: 1991 (NW) 274807

Quarrying of sand & clay, operation of sand & gravel pits 6 Use: Not Supplied A18NW 1000 - 497829 Date of Mapping: 1991 (N) 274880

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 3 of 9 Ground Stability Data (1:50,000)

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

Brine Compensation Area The site does not fall within the brine compensation area.

Brine Subsidence Solution Area The site does not fall within the brine subsidence solution area.

Potential for Collapsible Ground Stability Hazards 7 Hazard Potential: Very Low A13NE 0 1 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Compressible Ground Stability Hazards Hazard Potential: No Hazard A13NE 0 1 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Ground Dissolution Stability Hazards 8 Hazard Potential: Very Low A13NW 29 1 498043 Source: British Geological Survey, National Geoscience Information Service (N) 273932

Potential for Ground Dissolution Stability Hazards 9 Hazard Potential: Very Low A13SW 118 1 497969 Source: British Geological Survey, National Geoscience Information Service (SW) 273819

Potential for Ground Dissolution Stability Hazards 10 Hazard Potential: Low A13SE 180 1 498229 Source: British Geological Survey, National Geoscience Information Service (E) 273891

Potential for Landslide Ground Stability Hazards 11 Hazard Potential: Very Low A13NE 0 1 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Running Sand Ground Stability Hazards 12 Hazard Potential: Low A13SE 4 1 498052 Source: British Geological Survey, National Geoscience Information Service (SE) 273902

Potential for Running Sand Ground Stability Hazards 13 Hazard Potential: Very Low A13SE 164 1 498203 Source: British Geological Survey, National Geoscience Information Service (E) 273847

Potential for Running Sand Ground Stability Hazards Hazard Potential: No Hazard A13NE 0 1 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Shrinking or Swelling Clay Ground Stability Hazards 14 Hazard Potential: Moderate A13NE 0 1 498050 Source: British Geological Survey, National Geoscience Information Service (N) 273904

Potential for Shrinking or Swelling Clay Ground Stability Hazards 15 Hazard Potential: Low A13SE 164 1 498203 Source: British Geological Survey, National Geoscience Information Service (E) 273847

Potential for Shrinking or Swelling Clay Ground Stability Hazards 16 Hazard Potential: Moderate A13NE 217 1 498176 Source: British Geological Survey, National Geoscience Information Service (NE) 274081

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: No Hazard A13SE 4 1 498052 Source: British Geological Survey, National Geoscience Information Service (SE) 273902

Potential for Shrinking or Swelling Clay Ground Stability Hazards Hazard Potential: No Hazard A13SW 118 1 497969 Source: British Geological Survey, National Geoscience Information Service (SW) 273819

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 4 of 9 Historical Map List

The following mapping has been analysed for Historical Land Use Information (1:2,500):

1:2,500 Mapsheet Published Date Northamptonshire 033_10 1885 Northamptonshire 033_10 1900 Northamptonshire 033_10 1926 Ordnance Survey Plan SP9873 1971 Ordnance Survey Plan SP9773 1972 Ordnance Survey Plan SP9774 1972 Ordnance Survey Plan SP9874 1972

The following mapping has been analysed for Historical Land Use Information (1:10,000):

1:10,560 Mapsheet Published Date Northamptonshire 033_NW 1887 Northamptonshire 033_SW 1888 Northamptonshire 033_NE 1889 Northamptonshire 033_SE 1889 Huntingdonshire 016A_NE 1891 Northamptonshire 033_NE 1901 Northamptonshire 033_NW 1901 Northamptonshire 033_SE 1901 Northamptonshire 033_SW 1901 Huntingdonshire 016A_NE 1902 Northamptonshire 033_NE 1927 Northamptonshire 033_NW 1927 Northamptonshire 033_SE 1927 Northamptonshire 033_SW 1927 Northamptonshire 033_NE 1938 Northamptonshire 033_NW 1938 Northamptonshire 033_SE 1938 Northamptonshire 033_SW 1938 Huntingdonshire 016A_NE 1953 Ordnance Survey Plan SP97NE 1958 Ordnance Survey Plan SP97SE 1958

1:10,000 Mapsheet Published Date Ordnance Survey Plan SP97SE 1991 Ordnance Survey Plan SP97NE 1995

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 5 of 9 Data Currency

Mining and Cavities Data Version Update Cycle

BGS Recorded Mineral Sites British Geological Survey - National Geoscience Information Service October 2011 Bi-Annually

Coal Mining Affected Areas The Coal Authority - Mining Report Service August 2011 As notified

Man Made Mining Cavities Peter Brett Associates November 2011 Bi-Annually

Mining Instability Ove Arup & Partners October 2000 Not Applicable

Natural Cavities Peter Brett Associates November 2011 Bi-Annually

Non Coal Mining Areas of Great Britain British Geological Survey - National Geoscience Information Service February 2011 Not Applicable

Historical Land Use Information (1:2,500) Version Update Cycle

Subterranean Features Landmark Information Group Limited July 2011 Bi-Annually

Ground Stability Data (1:50,000) Version Update Cycle

Brine Compensation Area Cheshire Brine Subsidence Compensation Board November 2002 Not Applicable

Potential for Collapsible Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Compressible Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Ground Dissolution Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Landslide Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Running Sand Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Potential for Shrinking or Swelling Clay Ground Stability Hazards British Geological Survey - National Geoscience Information Service February 2011 Annually

Subsidence Insurance Claims SP Property Services May 2011 Quarterly

Subsidence Investigations CET Group May 2011 Quarterly

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 6 of 9 Data Currency

Motion Map Data (1:2,500) Version Update Cycle

Motion Map Nigel Press Associates - Hampshire February 2011 As notified Nigel Press Associates - Cambridge January 2011 As notified Nigel Press Associates - Ipswich January 2011 As notified Nigel Press Associates - Norwich January 2011 As notified Nigel Press Associates - Peterborough January 2011 As notified Nigel Press Associates - Barnstaple July 2010 As notified Nigel Press Associates - Derbyshire July 2010 As notified Nigel Press Associates - Humberside July 2010 As notified Nigel Press Associates - Kent July 2010 As notified Nigel Press Associates - Lincolnshire July 2010 As notified Nigel Press Associates - Nottinghamshire July 2010 As notified Nigel Press Associates - Birmingham May 2009 As notified Nigel Press Associates - Bournemouth May 2009 As notified Nigel Press Associates - Brighton May 2009 As notified Nigel Press Associates - Bristol May 2009 As notified Nigel Press Associates - Cardiff May 2009 As notified Nigel Press Associates - Central London May 2009 As notified Nigel Press Associates - Cheltenahm May 2009 As notified Nigel Press Associates - Coventry May 2009 As notified Nigel Press Associates - Crawley May 2009 As notified Nigel Press Associates - Edinburgh May 2009 As notified Nigel Press Associates - Exeter May 2009 As notified Nigel Press Associates - Glasgow May 2009 As notified Nigel Press Associates - Isle of Wight May 2009 As notified Nigel Press Associates - Leeds May 2009 As notified Nigel Press Associates - Leicester May 2009 As notified Nigel Press Associates - Liverpool May 2009 As notified Nigel Press Associates - Manchester May 2009 As notified Nigel Press Associates - Milton Keynes May 2009 As notified Nigel Press Associates - Newcastle May 2009 As notified Nigel Press Associates - Northwich May 2009 As notified Nigel Press Associates - Nottingham May 2009 As notified Nigel Press Associates - Oxford May 2009 As notified Nigel Press Associates - Plymouth May 2009 As notified Nigel Press Associates - Portsmouth May 2009 As notified Nigel Press Associates - Preston May 2009 As notified Nigel Press Associates - Reading May 2009 As notified Nigel Press Associates - Sheffield May 2009 As notified Nigel Press Associates - Stoke May 2009 As notified Nigel Press Associates - Swindon May 2009 As notified Nigel Press Associates - Tonbridge May 2009 As notified Nigel Press Associates - North London November 2008 As notified Nigel Press Associates - Head Office September 2008 As notified

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 7 of 9 Data Suppliers

A selection of organisations who provide data within this report

Data Supplier Data Supplier Logo

Ordnance Survey

British Geological Survey

The Coal Authority

Ove Arup

Peter Brett Associates

Wardell Armstrong

Johnson Poole & Bloomer

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 8 of 9 Useful Contacts

Contact Name and Address Contact Details

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

- Landmark Information Group Limited Telephone: 0844 844 9952 Fax: 0844 844 9951 The Smith Centre, Henley On Thames, Oxfordshire, RG9 6AB Email: [email protected] Website: www.landmarkinfo.co.uk

Order Number: 37137693_1_1 Date: 04-Jan-2012 rpr_ec_datasheet v47.0 A Landmark Information Group Service Page 9 of 9 Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX G

Flood Risk Assessment

DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

FLOOD RISK ASSESSMENT

The following flood risk assessment has been carried out in accordance with the National Planning Policy Framework (NPPF) (Department for Communities and Local Government, 2012a) using the Technical Guidance (Department for Communities and Local Government, 2012b), but is set out in the order that is shown on the proforma in Appendix B of the revised guidance document for the former PPS25: ‘Development and Flood Risk’ (Department for Communities and Local Government, 2009) with identical section headings and numbering where possible.

1. DEVELOPMENT DESCRIPTION AND LOCATION

1a. Type of Development and Location

It is proposed to develop a quarry on arable land at Ringstead Grange Farm and to restore the site by backfilling the mineral workings with overburden, quarry discard and imported inert material. The site is located about 1.5km south-west of Ringstead and 2km north-west of Raunds in an area administered by East Northamptonshire and Northamptonshire County Councils (Figure 1). The Grid Reference for the centre of the site has been taken as 498050 273900 (1/50,000 scale Ordnance Survey Map Sheet 141 Kettering, Corby & Surrounding Area).

1b. Vulnerability

Table 2 of the Technical Guidance to the NPPF classifies mineral workings as, ‘less vulnerable’, development. Landfill sites are considered to be, ‘more vulnerable’.

1c. Local Development Documents

The site at Ringstead Grange is identified on Northamptonshire County Council’s Minerals and Waste Development Framework, Location of Mineral Development Plan (Site MA9) which was published in March 2011. A Catchment Flood Management Plan (Environment Agency, 2009) and Strategic Flood Risk Assessment (Faber Maunsell/AECOM, 2006 and URS Scott Wilson, 2011) have been prepared for the area.

1d. Sequential/Exception Test

With regard to the Sequential Test, the proposed development is shown on the Environment Agency Flood Map (Appendix A) to be in Flood Zone 1 and cannot therefore be moved to an area of lower flood risk. Mineral workings, other than those for sand and gravel, are classified as, ‘less vulnerable’, in terms of their flood risk, whilst landfill sites are considered to be, ‘more vulnerable’. Table 3 of the Technical guidance to the NPPF indicates that an exception test is not required for less or more vulnerable sites in Flood Zone 1.

1e. Risk of Flooding to Occupants during and after Restoration

There will be no dwellings on the site during its operation or following its restoration. The health and safety of quarry operatives will be adequately assessed and monitored in line with the existing safety legislation: principally the Quarries Regulations, 1999. Surface and groundwaters will be properly managed. Any flooding of the quarry floor will not pose a risk to members of the public or other properties. The quarry will be restored to agriculture, together with areas of ecological interest which will partly comprise wetland features. The existing landform will be largely replicated. G1 DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

2. DEFINITION OF FLOOD HAZARD

2a. Sources of Flooding

The site is not at risk of flooding from rivers or, ‘blue-line’, watercourses. The proposed working area, which is shown on the Working Scheme Plan (Dwg. No. R15/03), lies about 0.5km due east of the River Nene. The difference in elevation between the site and the river is at least 23m. An unnamed tributary of Hog Dyke flows along the south-eastern boundary, but this occupies a wooded valley whose depth well exceeds any likely flood levels. There are no records of any historic fluvial flooding of the site.

The Ordnance Survey topographic plans indicate that surface gradients are generally directed away from the site boundary. Agricultural drainage is present on the site and although a number of drainage ditches can be observed detailed plans are not available. Areas of standing water may well form on the site during prolonged periods of inclement weather when the drainage capacity is exceeded, but these are not permanent. Flooding may occur if the drainage channels in the proposed development prove inadequate or if pumping operations are suspended, but this will be confined within the mineral workings. The effect will be minor and the risk is fully accepted by the developer. The mineral workings will be backfilled and the existing landform replicated. An agricultural drainage system will be installed and greenfield runoff rates will be re-established so that the risk of pluvial flooding both within and downstream of the site will be no greater than at present.

It is anticipated that some groundwater will be encountered during the operation of the site (see Section 4 of the main report). The quarry workings may flood if there is a temporary suspension in pumping operations, but the effects will be minor and temporary in nature and the risk is again fully accepted by the developer.

There are no sewers on the site and there are no plans to use sewers for drainage purposes.

Rainfall levels may rise during the working life of the site and post-restoration as a consequence of climate change. Discharge flows will be controlled at greenfield rates, but these are also expected to increase. The risk of downstream flooding should therefore be no greater post-restoration. Additional retention will be provided by creating the wetland areas along the north-western, western and south- eastern margins of the site. These are shown on the Concept Restoration Scheme Plan (Dwg. No. R15/04).

2b. How Flooding Could Occur

It is possible that during periods of prolonged inclement weather, the proposed excavations may become partly flooded as a consequence of surface runoff. Flooding may also occur as a consequence of groundwater inflow. This will depend on the capacity of the drainage channels that will be formed in the workings and the capacity and reliability of any pumps that may be deployed. This operational hazard is relatively commonplace in quarrying and is fully accepted by the developer. It will not affect any properties lying outside the quarry.

2c. Existing Surface Drainage

The proposed quarry site is currently used for agricultural purposes. An agricultural drainage system is thought to be in place, but detailed plans are not available.

G2 DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

3. PROBABILITY

3a. Flood zones

Extracts from the Environment Agency’s Flood Map are provided in Appendix A. The map shows that the extension site is located in Flood Zone 1 (i.e. in an area that has less than 0.1% AEP of flooding).

3b. Strategic Flood Risk Assessment

A Strategic Flood Risk Assessment has been prepared for the area administered by East Northamptonshire Council (Faber Maunsell, 2006 & URS Scott Wilson, 2011). This confirms that the proposed quarry site lies in Flood Zone 1.

3c. Probability of Flooding

The principle risk of flooding relates to the capacity of the drainage system during the operation of the quarry and its ability to conduct water at an adequate rate. The drainage system will therefore be designed with this in mind. However, the consequences of partial inundation of the mineral workings are minor and are accepted by the developer.

The design of the restoration drainage system will be in line with the usual standards for agricultural restoration. An adequate level of protection will be provided against flooding. Putting aside any changes that might arise due to climate change, the risk of flooding on the site should remain at pre-development levels because the existing landform will be replicated.

3d. Runoff

It is proposed to discharge water from the quarry workings into an unnamed tributary of Hog Dyke following its treatment (see Section 5.1 of the main report). The discharge flows will be at or below greenfield rates. This watercourse is located along the south-eastern perimeter of the site and will continue to form an important drainage path post-restoration (Concept Restoration Scheme Plan, Dwg. No. R15/04).

4. CLIMATE CHANGE

Surface runoff from the extension site would be expected to increase as a consequence of the greater intensities of rainfall that might occur due to climate change, unless it can infiltrate the exposed bedrock. The design of the site drainage system should therefore cater for an increase in rainfall intensity of 10% during quarrying and 10% for the post-restoration period. This assumes that development will commence in 2012 and will be completed within an 11 to 15 year timeframe. These increases are in line with the recommendations given in the Technical guidance to the NPPF (Table 5). Greenfield runoff rates might be expected to increase similarly. Predicted increases in river flows will not affect the site because of its location.

G3 DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

5. DETAILED DEVELOPMENT PROPOSALS

An account of the proposed development is provided in the Environmental Statement and Section 1.4 of the main report. Details are shown on the Working Scheme Plan (Dwg. No. R15/03) and the Indicative Phasing Plans (Dwg. No. R15/05). The layout of the site is governed by the geology of the area, in particular the location of the mineral reserves.

None of the areas most sensitive to flooding, such as the site offices, is considered to be at risk because the drainage system will be designed to ensure that major flooding does not occur. Mobile plant will be used to excavate and process the limestone and deposit the fill materials and can be quickly evacuated from any areas that could become flooded. Fuel oils will be stored in accordance with the Control of Pollution (Oil Storage) (England) Regulations 2001.

6. FLOOD RISK MANAGEMENT

The site is not in a flood risk area and the proposed working areas are considered to be secure because of their location. No protective measures are required as there are no likely sources of external flooding. The risk of flooding is limited to surface runoff and groundwater within the development area itself. Climate change may increase this risk during the operation of the quarry, but it will not affect properties lying outside the site boundary.

7. OFF-SITE IMPACTS

7a. Impact of Flood Prevention Measures

The proposed quarry site is not located in a floodplain so there will be no loss of flood storage capacity or conveyance. There will be no works carried out in watercourses that might otherwise affect flood flows.

7b. Runoff

During the Operation of the Quarry

The rate and volume of surface runoff will increase after the stripping of soils and the removal of overburden. However, all such runoff will be contained within the quarry by the excavated slopes and cut- off ditches and some will be able to infiltrate the exposed bedrock.

Upon Completion of the Quarry

The developer is aware of the Environment Agency’s intention to prevent increased runoff from development sites, even in Flood Zone 1. The site will be restored to agriculture with areas of ecological interest, some of which will comprise wetland features. The present landform will be replicated and greenfield runoff rates will be re-established with some additional storage capacity along the north- western, western and south-eastern margins of the site. There will be no increased risk of downstream flooding.

G4 DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

8. RESIDUAL RISKS

8a. Residual Flood Related Risks

The site lies in Flood Zone 1 and is elevated above the natural watercourses in the area. The residual risk of flooding from these sources (i.e. in the event of a flood of greater than 0.1% AEP) is negligible. The excavations may become partly flooded should a severe rainstorm occur and the drainage system proves inadequate. This would not present a risk to site personnel or mobile plant. Partial flooding of quarry excavations is relatively commonplace and this is fully accepted by the operator. Post-restoration, such severe runoff may exceed the capacity of the drainage system, although this will be designed to take into account the predicted effects of climate change. Some parts of the site could become water laden, as may reflect the current situation, but only on a temporary basis. The existing landform will be replicated and additional attenuation will be provided by creating wetland areas.

8b. Management of Residual Risks

Residual risks of flooding will be managed by the developer and site operator, Mick George Ltd.

G5 DABGeot/11093/Final

Proposed Ringstead Grange Quarry - Hydrological and Hydrogeological Assessment

APPENDIX H

Attenuation Storage Calculations

DABGeot/11093/Final

Site Ringstead Grange Quarry After the development of the Boxcut (Phase 1)

Area (ha) 13.5 Groundwater Flow (l/s) 0.09 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 0.08 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 0.16 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 0.24 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 0.32 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 0.65 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 0.97 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 1.30 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 1.94 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 3.89 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 7.78 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 11.66 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 15.55 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 23.33 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 31.10 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 40.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 62.21 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 81.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 123.12

Storage Required (m3)

Duration (minutes) 15 430.15 2065.13 2669.53 3092.75 3719.42 4764.86 6096.91 30 578.14 2617.05 3343.21 3846.63 4584.67 5802.37 7333.41 45 677.13 2980.37 3782.27 4334.69 5139.56 6461.21 8109.56 60 752.36 3256.07 4114.40 4702.46 5556.34 6952.24 8683.75 120 944.88 3977.25 4978.14 5656.79 6633.92 8210.99 10142.97 180 1051.27 4429.65 5518.15 6251.74 7303.12 8988.60 11039.38 240 1117.57 4755.82 5909.66 6684.83 7788.19 9552.37 11684.83 360 1180.36 5209.16 6456.56 7291.13 8473.19 10347.26 12597.04 720 1116.29 5878.68 7296.86 8233.89 9549.60 11615.24 14061.03 1440 382.27 5668.87 7180.60 8169.61 9546.20 11680.15 14176.43 2160 -547.78 5049.19 6611.41 7627.15 9034.93 11203.03 13717.13 2880 -1572.86 4245.37 5841.75 6875.31 8302.39 10489.80 13012.81 4320 -3799.74 2290.25 3922.26 4972.16 6412.61 8608.92 11121.54 5760 -6139.48 139.10 1791.91 2850.71 4300.07 6496.39 8997.13 7500 -9055.08 -2608.70 -938.07 128.16 1580.49 3773.84 6259.73 11520 -16000.36 -9295.59 -7602.69 -6529.03 -5073.73 -2892.27 -440.53 15000 -22150.85 -15297.57 -13594.28 -12519.14 -11065.32 -8897.22 -6472.22 22800 -36184.82 -29114.73 -27404.01 -26328.87 -24885.45 -22745.57 -20372.54

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 1180.4 5878.7 7296.9 8233.9 9549.6 11680.1 14176.4

14000

12000

10000

8000 1 Year ) 3 10 Years 20 Years

6000 30 Years 50 Years Storage (m Storage 100 Years

4000

2000

0 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

14000

12000

10000 ) 3 8000 Storage (m 6000

4000

2000

0 0 102030405060708090100 Return Period (Years) Site Ringstead Grange Quarry Around Phase 5

Area (ha) 15.6 Groundwater Flow (l/s) 0.29 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 0.26 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 0.52 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 0.78 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 1.04 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 2.09 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 3.13 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 4.18 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 6.26 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 12.53 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 25.06 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 37.58 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 50.11 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 75.17 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 100.22 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 130.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 200.45 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 261.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 396.72

Storage Required (m3)

Duration (minutes) 15 501.71 2391.02 3089.43 3578.49 4302.65 5510.71 7049.96 30 677.37 3033.44 3872.56 4454.29 5307.14 6714.26 8483.45 45 796.41 3457.92 4384.56 5022.92 5952.99 7480.23 9384.99 60 887.99 3781.16 4773.01 5452.55 6439.25 8052.29 10053.14 120 1129.04 4633.12 5789.70 6573.91 7703.04 9525.43 11757.95 180 1270.57 5174.47 6432.30 7280.00 8494.93 10442.59 12812.39 240 1365.77 5569.97 6903.30 7799.05 9074.04 11112.65 13576.82 360 1475.51 6131.02 7572.46 8536.85 9902.78 12068.38 14668.12 720 1513.01 7016.22 8655.00 9737.80 11258.17 13645.13 16471.38 1440 887.88 6996.84 8743.73 9886.58 11477.32 13943.21 16827.80 2160 36.24 6503.84 8309.08 9482.82 11109.59 13614.95 16520.14 2880 -925.22 5798.06 7642.76 8837.10 10486.18 13013.84 15929.33 4320 -3052.36 3984.96 5870.84 7084.06 8748.58 11286.54 14190.01 5760 -5309.90 1945.34 3855.25 5078.76 6753.58 9291.54 12181.28 7500 -8139.95 -690.79 1239.71 2471.80 4150.04 6684.58 9557.16 11520 -14920.10 -7172.36 -5216.12 -3975.46 -2293.78 227.03 3060.14 15000 -20949.13 -13029.79 -11061.54 -9819.16 -8139.19 -5633.83 -2831.60 22800 -34749.52 -26579.64 -24602.81 -23360.42 -21692.47 -19219.72 -16477.55

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 1513.0 7016.2 8743.7 9886.6 11477.3 13943.2 16827.8

16000

14000

12000

10000

1 Year ) 3 10 Years 8000 20 Years 30 Years 50 Years Storage (m Storage 6000 100 Years

4000

2000

0 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

16000

14000

12000

10000 ) 3

8000 Storage (m

6000

4000

2000

0 0 102030405060708090100 Return Period (Years) Site Ringstead Grange Quarry Around Phase 11

Area (ha) 13.5 Groundwater Flow (l/s) 0.37 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 0.33 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 0.67 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 1.00 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 1.33 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 2.66 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 4.00 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 5.33 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 7.99 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 15.98 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 31.97 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 47.95 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 63.94 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 95.90 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 127.87 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 166.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 255.74 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 333.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 506.16

Storage Required (m3)

Duration (minutes) 15 430.40 2065.38 2669.78 3093.00 3719.67 4765.11 6097.16 30 578.65 2617.55 3343.72 3847.13 4585.18 5802.88 7333.91 45 677.89 2981.12 3783.02 4335.44 5140.31 6461.96 8110.31 60 753.37 3257.08 4115.41 4703.47 5557.35 6953.25 8684.76 120 946.90 3979.27 4980.16 5658.80 6635.93 8213.00 10144.99 180 1054.30 4432.67 5521.18 6254.77 7306.15 8991.62 11042.41 240 1121.60 4759.85 5913.69 6688.86 7792.22 9556.40 11688.86 360 1186.41 5215.21 6462.61 7297.18 8479.24 10353.31 12603.09 720 1128.38 5890.78 7308.95 8245.99 9561.70 11627.33 14073.13 1440 406.46 5693.06 7204.79 8193.80 9570.39 11704.34 14200.62 2160 -511.49 5085.48 6647.70 7663.44 9071.22 11239.32 13753.42 2880 -1524.47 4293.76 5890.13 6923.69 8350.78 10538.18 13061.20 4320 -3727.16 2362.82 3994.84 5044.73 6485.18 8681.50 11194.12 5760 -6042.71 235.87 1888.68 2947.48 4396.84 6593.16 9093.90 7500 -8929.08 -2482.70 -812.07 254.16 1706.49 3899.84 6385.73 11520 -15806.83 -9102.05 -7409.15 -6335.50 -4880.20 -2698.73 -247.00 15000 -21898.85 -15045.57 -13342.28 -12267.14 -10813.32 -8645.22 -6220.22 22800 -35801.78 -28731.69 -27020.97 -25945.83 -24502.41 -22362.53 -19989.50

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 1186.4 5890.8 7309.0 8246.0 9570.4 11704.3 14200.6

14000

12000

10000

8000 1 Year ) 3 10 Years 20 Years

6000 30 Years 50 Years Storage (m Storage 100 Years

4000

2000

0 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

14000

12000

10000 ) 3 8000 Storage (m 6000

4000

2000

0 0 102030405060708090100 Return Period (Years) Site Ringstead Grange Quarry Around Phase 16

Area (ha) 15.0 Groundwater Flow (l/s) 1.13 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 1.02 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 2.03 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 3.05 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 4.07 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 8.14 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 12.20 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 16.27 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 24.41 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 48.82 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 97.63 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 146.45 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 195.26 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 292.90 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 390.53 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 508.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 781.06 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 1017.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 1545.84

Storage Required (m3)

Duration (minutes) 15 482.07 2298.72 2970.27 3440.52 4136.82 5298.42 6778.47 30 650.63 2916.08 3722.93 4282.28 5102.33 6455.33 8156.48 45 764.75 3323.90 4214.90 4828.70 5723.00 7191.50 9023.00 60 852.47 3634.37 4588.07 5241.47 6190.22 7741.22 9665.12 120 1082.89 4452.19 5564.29 6318.34 7404.04 9156.34 11302.99 180 1217.60 4971.35 6180.80 6995.90 8164.10 10036.85 12315.50 240 1307.77 5350.27 6632.32 7493.62 8719.57 10679.77 13049.17 360 1410.56 5887.01 7273.01 8200.31 9513.71 11596.01 14095.76 720 1438.42 6729.97 8305.72 9346.87 10808.77 13103.92 15821.47 1440 820.93 6694.93 8374.63 9473.53 11003.08 13374.13 16147.78 2160 -14.35 6204.50 7940.30 9068.90 10633.10 13042.10 15835.55 2880 -955.24 5509.46 7283.21 8431.61 10017.26 12447.71 15251.06 4320 -3033.35 3733.30 5546.65 6713.20 8313.70 10754.05 13545.85 5760 -5236.87 1739.33 3575.78 4752.23 6362.63 8802.98 11581.58 7500 -7997.70 -835.05 1021.20 2205.90 3819.60 6256.65 9018.75 11520 -14608.64 -7158.89 -5277.89 -4084.94 -2467.94 -44.09 2680.06 15000 -20485.05 -12870.30 -10977.75 -9783.15 -8167.80 -5758.80 -3064.35 22800 -33932.31 -26076.66 -24175.86 -22981.26 -21377.46 -18999.81 -16363.11

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 1438.4 6730.0 8374.6 9473.5 11003.1 13374.1 16147.8

16000

14000

12000

10000

1 Year ) 3 10 Years 8000 20 Years 30 Years 50 Years Storage (m Storage 6000 100 Years

4000

2000

0 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

16000

14000

12000

10000 ) 3

8000 Storage (m

6000

4000

2000

0 0 102030405060708090100 Return Period (Years) Site Ringstead Grange Quarry Around Phase 11

Equivalent Impermeable Area (ha) 11.5 Groundwater Flow (l/s) 0.37 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 0.33 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 0.67 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 1.00 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 1.33 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 2.66 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 4.00 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 5.33 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 7.99 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 15.98 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 31.97 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 47.95 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 63.94 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 95.90 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 127.87 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 166.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 255.74 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 333.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 506.16

Storage Required (m3)

Duration (minutes) 15 362.42 1755.18 2270.04 2630.56 3164.39 4054.95 5189.66 30 484.49 2221.33 2839.92 3268.75 3897.46 4934.76 6238.97 45 564.81 2526.82 3209.92 3680.50 4366.13 5491.98 6896.13 60 624.89 2757.68 3488.85 3989.79 4717.17 5906.27 7381.26 120 772.88 3356.01 4208.62 4786.72 5619.09 6962.52 8608.29 180 847.50 3725.37 4652.62 5277.53 6173.15 7608.92 9355.89 240 887.96 3987.21 4970.11 5630.44 6570.34 8073.16 9889.70 360 909.43 4341.37 5403.97 6114.90 7121.84 8718.27 10634.75 720 758.78 4815.64 6023.71 6821.93 7942.72 9702.33 11785.79 1440 -58.62 4444.78 5732.55 6575.04 7747.69 9565.50 11691.96 2160 -1043.01 3724.78 5055.56 5920.82 7120.04 8966.94 11108.58 2880 -2108.35 2847.92 4207.79 5088.23 6303.90 8167.24 10316.48 4320 -4389.58 798.18 2188.42 3082.77 4309.82 6180.76 8321.14 5760 -6766.95 -1418.53 -10.58 891.36 2126.00 3996.94 6127.20 7500 -9714.92 -4223.56 -2800.43 -1892.16 -654.99 1213.42 3331.03 11520 -16703.99 -10992.51 -9550.41 -8635.82 -7396.12 -5537.83 -3449.32 15000 -22871.91 -17033.93 -15582.98 -14667.12 -13428.68 -11581.78 -9516.04 22800 -36908.16 -30885.49 -29428.21 -28512.35 -27282.77 -25459.91 -23438.44

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 909.4 4815.6 6023.7 6821.9 7942.7 9702.3 11785.8

11000

9000

7000

5000

1 Year ) 3 10 Years 3000 20 Years 30 Years 50 Years Storage (m Storage 1000 100 Years

-1000

-3000

-5000 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

12000

10000

8000 ) 3

6000 Storage (m

4000

2000

0 0 102030405060708090100 Return Period (Years) Site Ringstead Grange Quarry Around Phase 16

Equivalent Impermeable Area (ha) 12.8 Groundwater Flow (l/s) 1.13 Lagoon Outflow (l/s) 32 Climate Change Factor 1.1

Rainfall Totals (mm)

Groundwater Return Period (years) 1 10 20 30 50 100 200 Volume (m3) Duration (minutes) 15 3.09 14.10 18.17 21.02 25.24 32.28 41.25 1.02 30 4.28 18.01 22.90 26.29 31.26 39.46 49.77 2.03 45 5.14 20.65 26.05 29.77 35.19 44.09 55.19 3.05 60 5.84 22.70 28.48 32.44 38.19 47.59 59.25 4.07 120 7.91 28.33 35.07 39.64 46.22 56.84 69.85 8.14 180 9.40 32.15 39.48 44.42 51.50 62.85 76.66 12.20 240 10.62 35.12 42.89 48.11 55.54 67.42 81.78 16.27 360 12.59 39.72 48.12 53.74 61.70 74.32 89.47 24.41 720 16.80 48.87 58.42 64.73 73.59 87.50 103.97 48.82 1440 21.14 56.74 66.92 73.58 82.85 97.22 114.03 97.63 2160 24.16 61.85 72.37 79.21 88.69 103.29 120.22 146.45 2880 26.54 65.72 76.47 83.43 93.04 107.77 124.76 195.26 4320 30.11 71.12 82.11 89.18 98.88 113.67 130.59 292.90 5760 32.92 75.20 86.33 93.46 103.22 118.01 134.85 390.53 7500 35.72 79.13 90.38 97.56 107.34 122.11 138.85 508.50 11520 40.78 85.93 97.33 104.56 114.36 129.05 145.56 781.06 15000 44.23 90.38 101.85 109.09 118.88 133.48 149.81 1017.00 22800 50.29 97.90 109.42 116.66 126.38 140.79 156.77 1545.84

Storage Required (m3)

Duration (minutes) 15 407.29 1957.50 2530.55 2931.83 3526.01 4517.24 5780.22 30 547.06 2480.24 3168.75 3646.07 4345.84 5500.40 6952.05 45 640.36 2824.17 3584.49 4108.27 4871.40 6124.52 7687.40 60 711.14 3085.03 3898.85 4456.42 5266.02 6589.54 8231.27 120 891.46 3766.60 4715.59 5359.05 6285.51 7780.81 9612.62 180 990.12 4193.32 5225.39 5920.94 6917.80 8515.88 10460.33 240 1050.77 4500.37 5594.38 6329.36 7375.50 9048.21 11070.10 360 1105.88 4925.78 6108.50 6899.80 8020.57 9797.46 11930.58 720 1031.86 5547.31 6891.95 7780.40 9027.89 10986.42 13305.39 1440 309.34 5321.82 6755.17 7692.90 8998.11 11021.41 13388.26 2160 -599.02 4707.73 6188.94 7152.02 8486.80 10542.48 12926.22 2880 -1597.50 3919.04 5432.64 6412.61 7765.70 9839.68 12231.87 4320 -3762.02 2012.19 3559.58 4555.04 5920.80 8003.23 10385.57 5760 -6033.54 -80.51 1486.59 2490.50 3864.70 5947.14 8318.21 7500 -8862.12 -2750.00 -1166.00 -155.05 1221.97 3301.59 5658.58 11520 -15595.52 -9238.40 -7633.28 -6615.30 -5235.46 -3167.10 -842.50 15000 -21555.42 -15057.50 -13442.52 -12423.13 -11044.70 -8989.02 -6689.75 22800 -35149.33 -28445.84 -26823.82 -25804.43 -24435.86 -22406.93 -20156.94

Storage Required for Discharge Flow Limited to 32 l/s Return Period 1 10203050100200 3 Maximum Storage (m ) 1105.9 5547.3 6892.0 7780.4 9027.9 11021.4 13388.3

13000

11000

9000

7000

5000 1 Year ) 3 10 Years 20 Years 3000 30 Years 50 Years Storage (m Storage 100 Years 1000

-1000

-3000

-5000 0 200 400 600 800 1000 1200 1400 Duration (minutes)

Storage Requirement

12000

10000

8000 ) 3

6000 Storage (m

4000

2000

0 0 102030405060708090100 Return Period (Years)