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Eastwood & Partners, Principle House, 121-123 Fleet Road, Fleet, Hampshire GU51 3PDTel: 01252 360 580 Fax: 01252 360 581 [email protected] www.eastwoodandpartners.com
GEOTECHNICAL AND GEO-ENVIRONMENTAL SITE INVESTIGATION REPORT
TERRIERS FARM, HIGH WYCOMBE
FOR
PERSIMMON HOMES AND REDROW HOMES
ISSUE 2
38473-002 26 AUGUST 2015
Persimmon Homes and Redrow HomesTerriers Farm, High Wycombe
Also at:- St Andrew’s House, 23 Kingfield Road, Sheffield S11 9AS Tel: 0114 255 4554 Fax: 0114 255 4330
Directors: P Richardson BSc, CEng, MICE, MIStructE S D Preston BEng, CEng, FICE, FIStructE N J Baines BSc, CEng, MICE, MCIWEMM J Yates BSc(Eng), ACGI, CEng, MICE, FIStructE S R Ellis BEng, CEng, MIStructE, AMICE K R Pursall BEng, CEng, MIStructE
C A Topliss BSc, CEnv, CSci, CGeol, SiLC, AMICE, FGS S J English BEng, CEng, MIStructE A R Priest BEngSenior Associates: K Newsome BSc, CEng, MICE, MIStructE S J Mitchell BSc, MSc, CEng, MEI, MCIBSE, MASHRAE A Allison BEng
A Jones BEng, CEng, MICE, MIStructE M Young MA, CEng, MICE, MIStructE C A Wood BSc, CEng, MIStructE, AMICEAssociates: K Edwards MSci, FGS A J Kerslake BEng A G Marshall BEng, CEng, MIStructE C Hodge EngTech, TMICE
P Harrison BEng, CEng, MIStructE M P Chappell BEng, IEng, AMIStructE P H Halberstadt MEng, ACGI, CEng, MICEConsultant: J M Wood BSc, CEng, MICE, FIStructE
Eastwood & Partners (Consulting Engineers) Limited Registered No 1835021
GEOTECHNICAL AND GEO-ENVIRONMENTAL SITE INVESTIGATION REPORT
TERRIERS FARM, HIGH WYCOMBE
FOR
PERSIMMON HOMES AND REDROW HOMES
ISSUE 2
Job No. : 38473
Report Status : Issue 2 - TO BE UPDATED WITH FURTHER GAS MONITORING RESULTS
Document Date : 26 August 2015
Approved :
Catherine Topliss
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CONTENTS
1.0 EXECUTIVE SUMMARY ...................................................................................................... 4
2.0 INTRODUCTION ................................................................................................................... 6
2.1 Terms of Reference ................................................................................................. 6
2.2 Context .................................................................................................................... 6
2.3 Aims and Objectives ................................................................................................ 6
2.4 Scope of Investigation .............................................................................................. 7
2.5 Limitations of Investigation ....................................................................................... 8
3.0 THE SITE .............................................................................................................................. 9
3.1 Description ............................................................................................................... 9
3.2 History...................................................................................................................... 9
3.3 Geology ................................................................................................................. 10
3.4 Hydrogeology ......................................................................................................... 11
3.5 Hydrology ............................................................................................................... 11
3.6 Mining .................................................................................................................... 11
3.7 Ground Gas ........................................................................................................... 12
3.8 Pollution Incidents to Controlled Waters ................................................................. 12
3.9 Discharge Consents ............................................................................................... 12
3.10 Flooding ................................................................................................................. 12
4.0 OUTLINE CONCEPTUAL MODEL ..................................................................................... 13
5.0 GROUND INVESTIGATION ................................................................................................ 14
5.1 Site Works ............................................................................................................. 14
5.2 Laboratory Testing ................................................................................................. 14
6.0 GROUND CONDITIONS ..................................................................................................... 15
6.1 Surface Covering ................................................................................................... 15
6.2 Made Ground ......................................................................................................... 15
6.3 Natural Ground ...................................................................................................... 15
6.4 Surface Depressions .............................................................................................. 15
6.5 Obstructions ........................................................................................................... 16
6.6 Groundwater .......................................................................................................... 16
6.7 Evidence of Contamination .................................................................................... 16
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7.0 GEOTECHNICAL APPRAISAL .......................................................................................... 17
7.1 General .................................................................................................................. 17
7.2 Foundations ........................................................................................................... 18
7.3 Ground Slabs ......................................................................................................... 19
7.4 Superstructure Precautions ................................................................................... 19
7.5 Excavation Problems ............................................................................................. 19
7.6 Roads .................................................................................................................... 19
7.7 Surface Water Drainage ......................................................................................... 20
8.0 REFINEMENT OF OUTLINE CONCEPTUAL MODEL ....................................................... 22
8.1 Source Characterisation ......................................................................................... 22
8.2 Gas Precautions .................................................................................................... 22
8.3 Unexpected Contamination .................................................................................... 22
8.4 Chemical Testing ................................................................................................... 22
8.5 Assessment Criteria ............................................................................................... 23
8.6 Chemical Test Results ........................................................................................... 23
9.0 RISK ASSESSMENT .......................................................................................................... 24
9.1 Human Health – Construction Workers .................................................................. 24
9.2 Human Health – Future Residents and Visitors ...................................................... 24
9.3 Plants ..................................................................................................................... 24
9.4 Ground Gas ........................................................................................................... 24
9.5 Concrete ................................................................................................................ 25
9.6 Controlled Waters .................................................................................................. 25
10.0 CONTAMINATION - RECOMMENDATIONS AND APPROVALS ...................................... 26
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APPENDICES Appendix 1 Extract from Wycombe District Council’s Local Plan ‘Consultation Document’, dated
January 2014
‘Exploratory Hole Location Plan’, Drawing Number 38473/001B
Photographs
Appendix 2 Envirocheck Report
Appendix 3 Trial Pit Logs TP1 to TP61, SA1 to SA23
Window Sample and Dynamic Probe Logs
Appendix 4 Geotechnical Test Results, PSL15/2949
Infiltration Test Results
Appendix 5 Chemical Test Results, Chemtest Report 15-13898
Table of Assessment Values
Table of Atmospheric Conditions
Gas Monitoring Results
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1.0 EXECUTIVE SUMMARY
1. This report presents the findings of a geotechnical and geo-environmental site investigation
in order to inform preparation of a subsequent Development Brief for the site.
2. The Allocation Site area is approximately 23 hectares and is located at Kingshill Road, High
Wycombe. It currently comprises open fields. A footpath crosses the site and areas of trees
are present within the site, as well as along the boundaries. A number of surface
depressions are present, mainly towards the eastern half of the site.
3. Historical maps indicate that no development has occurred on the site in the past.
4. The site is shown to be underlain by the Seaford Chalk and Newhaven Chalk Formation.
Superficial deposits of the Clay-with-Flints Formation, which includes clay, silt, sand and
gravel, are shown over the chalk.
5. The bedrock is classified as a Principal Aquifer and the overlying superficial deposits as
Unproductive Strata. The site is located within a Groundwater Source Protection Zone III.
6. No radon precautions are required.
7. No historical or active landfills are recorded within 250 m of the site.
8. A number of small quarries were noted on the historical maps within 200 m of the site. Gas
monitoring wells have been installed and a programme of gas monitoring instigated. Gas
protective measures would not be expected to be required, but at this stage we recommend
that Amber 1 protective measures are assumed for plots within 250 m of the small quarries.
These would comprise a fully lapped and sealed gas membrane system and ventilated void
beneath the floor slab.
9. Topsoil was recorded across the site with thicknesses ranging between 0.25 m and 0.5 m.
The natural ground generally comprised firm, sometimes becoming stiff with depth, brown,
occasionally sandy, gravelly clay. Occasionally, layers of sand were recorded locally at depth
(>2 m). In a small number of trial pits, very weathered clayey chalk was encountered. No
groundwater was encountered within the trial pits.
10. Window sampling and dynamic probing has been undertaken both within and adjacent to the
surface depressions. It is expected that the soft/loose material recorded in these up to
around 4 m deep will need to be stabilised prior to development taking place in these areas.
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Vigilance should be maintained throughout construction for further potential solution
features.
11. For a low rise housing scheme, the most suitable foundations across the majority of the site
are considered to be strip or trench fill footings at a minimum depth of 1 m. A safe bearing
capacity of 100 kN/m2 is considered appropriate. The foundations will need to be deepened
in accordance with the NHBC Standards, Chapter 4.2, where existing or proposed trees are
within influencing distance. Heave precautions will be required where the foundations are
more than 1500 mm deep due to existing trees. If the footings span different materials, e.g.
sand and clay, the foundations should be reinforced.
12. Rafts or piled foundations are proposed for plots over the stabilised material in the surface
depressions.
13. Superstructure precautions are likely to be required for plots located over the surface
depressions, if raft foundations are used.
14. No or very low infiltration rates (up to a maximum of 2 x 10-06 m/sec) were recorded in the
superficial deposits, with rates of 1.4 to 20 x 10-06 m/sec recorded in the underlying upper
layers of chalk.
15. None of the contaminants tested exceeded their respective assessment values. Remedial
measures are therefore not considered necessary and the topsoil is considered suitable for
re-use.
16. Gas monitoring is ongoing. However, the initial results indicate that the gassing regime
should be classified as Green under the NHBC traffic light system and no gas precautions
will be required.
17. DS-1 AC-2z sulphate precautions are required for below ground concrete.
18. The conclusions made in this report in relation to contamination are subject to agreement by
the approving bodies such as the Local Authority and warranty provider.
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2.0 INTRODUCTION
2.1 Terms of Reference
This report presents the findings of a geotechnical and geo-environmental site investigation carried
out by Eastwood & Partners (Consulting Engineers) Ltd for, and on the behalf of, Persimmon
Homes and Redrow Homes in order to inform preparation of a subsequent Development Brief for
the site. Any other parties using the information in this report do so at their own risk and any duty of
care is excluded.
2.2 Context
The following reports have been reviewed:
Geotechnical Engineering’s ‘Ground Investigation’ reference 21259, dated 27 February 2008; and
Geotechnical Engineering’s ‘Soakaway Testing’ reference 17756, dated 28 July 2005.
In addition to the above reports, Wycombe District Council’s Local Plan ‘Consultation Document’,
dated January 2014, contains a section on the proposals for the Terriers Farm Allocation Site.
2.3 Aims and Objectives
The aims and objectives of this investigation were as follows:
• Assimilate phase 1 data to derive an outline conceptual model identifying potential
contaminants, pathways and receptors, as well as possible linkages between these;
• Obtain information enabling refinement and subsequent testing of the conceptual model;
• Carry out tiered risk assessment to establish the likely risks to future receptors, involving the
use of generic assessment criteria and where unacceptable risks are identified, site specific
assessment criteria within a detailed quantitative risk assessment;
• Identify feasible remediation options if unacceptable risks are highlighted;
• Develop an appropriate remediation strategy where remediation is required; and
• Detail the ground conditions and their geotechnical properties enabling outline foundation
proposals to be made.
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2.4 Scope of Investigation
This document is split into two sections. These constitute the findings of the Phase 1 and Phase 2
investigations, consecutively.
2.4.1 Phase 1
The Phase 1 investigation involved a review of information extracted from published documentation
as well as that obtained from a site reconnaissance. Information regarding the current and former
land uses both on and surrounding the site, as well as the environmental sensitivity of the site
location as determined by factors including geology, hydrogeology and hydrology have been
examined.
Information analysed in this section of the report has been obtained from a variety of sources and
included the following:
• A Landmark Envirocheck report. This includes historical Ordnance Survey maps, as well as
information regarding environmental issues such as abstraction licences, pollution
incidences and waste facilities;
• The British Geological Survey map;
• A site walkover, as part of the intrusive works; and
• The previous reports.
The results of the Phase 1 investigation were used to derive an outline conceptual model from
which a preliminary risk assessment was made.
2.4.2 Phase 2
This part of the investigation consisted of intrusive works and laboratory analysis. The findings were
used to test the conceptual model and produce a final risk assessment.
The intrusive works comprised trial pits which were excavated to enable:
• Examination of the upper few metres of ground;
• In situ description of soils, enabling any localised lateral and vertical changes in soil
conditions to be logged;
• Assessment of any contamination identified using visual and olfactory methods;
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• Collection of soil samples for geotechnical and chemical testing; and
• Infiltration tests to be undertaken.
2.5 Limitations of Investigation
This report is based on the assumption that the site will be developed with residential units, up to
three storeys in height, which will be of conventional construction, and that existing ground levels
will not alter significantly. If this is not the case, then the advice given in this report may not be
appropriate.
Where assessments of site areas affected in particular ways are given, these are approximate. All
information, comments and opinions given in this report are based on the ground conditions
encountered during the site work, on the results of laboratory testing carried out as part of the
investigation and information gained from a historical, geological and environmental desk study.
However, there may be conditions at the site that have not been taken into account, such as
unpredictable soil strata and water conditions between or below investigation points. It should be
noted that groundwater and gas levels vary due to seasonal or other effects, and may at times differ
from those measured during the investigation.
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3.0 THE SITE
3.1 Description
The Allocation Site has an area of approximately 23 hectares and is located at Kingshill Road, High
Wycombe. The site is centred around grid reference 487810, 195100.
The site currently comprises open fields, which are separated by fences as well as hedge and tree
lined field boundaries. A footpath is located in the eastern part of the site, trending north/south. A
water main crosses the site from the south-eastern corner, across the centre of the site before
bending around to the south west and exiting through the south-west site boundary. A gas main
crosses the central part of the site from south to north.
Areas of trees are present within the site and along the boundaries, especially in the south-western
corner.
A number of surface depressions were identified on site, three of which are within the proposed
area of development as shown within Wycombe District Council’s Local Plan ‘Consultation
Document’, dated January 2014, an extract of which is in Appendix 1. Geotechnical Engineering Ltd
also identified a further depression within the proposed development area, making four in total. A
further five surface depressions were also identified by Eastwood & Partners within the proposed
areas of public open space. These are discussed further in section 6.4.
The site is a bowl shape with sides sloping down to the central southern part of the site at varying
angles, but at around 3° or 1 in 20 at its steepest. The high point at the site is in the north-east
corner which lies at 178 m AOD, the lowest part of the site is along the southern boundary which
has an elevation of 161 m AOD.
The site is bordered by Hazlemere recreation ground to the east, Terriers House and Lodge (subject
of planning applications 15/06859/FUL, 15/06860/FUL and 15/06862/LBC) to the south, a former
college site, re-developed by Taylor Wimpey, to the west and to the north by Lady’s Mile, an Area of
Outstanding Natural Beauty (AONB) and adopted Green Belt.
The ‘Exploratory Hole Location Plan’, drawing 38473/001B in Appendix 1, shows the features
described. Some photographs are also provided in Appendix 1.
3.2 History
Historical maps, obtained as part of the Envirocheck report, have been reviewed to assess the
previous use of the site and surrounding area. Copies of the maps are presented in Appendix 2.
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3.2.1 The Site
The earliest map reviewed dates between 1874 and 1875. This shows the site to comprise a
number of fields. Trees are present along some of the field boundaries, as well as a small number
within the site. A footpath is located in the eastern part of the site, trending north/south. Another
footpath is present in the western part of the site, which trends north-west/south-east, both of which
remain on site today. From 1898 some small copses or stands of trees are present in the south-
western area of the site and a section of the site appears to have been planted with an orchard. The
copses of trees remain until circa 1970 and the orchard remains until circa 1991. The site has
remained undeveloped to the present day.
3.2.2 The Surrounding Area
The earliest map dated 1874-1875, shows the surrounding area to predominately comprise
agricultural land with scattered farms. The area south-east of the site comprises woodland.
Brickworks are present about 20 m south-east of the site. A small ‘Old Quarry’ is located
approximately 80 m east of the south-east corner of the site and a further small quarry is located
approximately 80 m north of the north-eastern corner of the site. In addition, a small pond/basin
appears to be located approximately centrally on the site’s south-eastern boundary. A small portion
of the pond/basin is within the site and the remainder lies outside the site boundary. Two additional
possible small quarries, or maybe sinkholes, are located adjacent to the site’s south and south-
eastern boundary. These are not however, labelled as such and are not visible by the following
map, dated 1898. A further quarry is located about 200 m south of the site. All of the quarries
appear to have been disused since the 1900’s. The quarry to the north of the site does not appear
to have been backfilled and its outline remains visible on recent mapping. The quarries 80 m east of
the site and 200 m south of the site disappear from the map between 1961 and 1969. It is not clear
whether or not these have been backfilled. By 1900, Terriers Farm has been built outside the south-
western corner of the site and residential development has commenced to the south of the site.
During the 1920’s and 1930’s, residential development of the south-eastern area has started. In the
subsequent years, developments have expanded, with the surrounding area remaining mainly
residential to the present day.
3.3 Geology
According to the British Geological Survey online map, the solid geology beneath the site is shown
to be the Seaford Chalk and Newhaven Chalk Formation. Superficial deposits shown across the
whole site are the Clay-with-Flints Formation, which includes clay, silt, sand and gravel.
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The British Geological Survey holds records of trial pits and boreholes in the local area. A borehole
located about 9 m east of the site has recorded firm to stiff slightly sandy clay to at least five metres
below ground level (bgl). A second borehole located just off the south-west boundary of the site
records made ground of flint gravel and clay to 0.7 m bgl, overlying soft to firm silty clay with chalk
and flint gravel to 1.9 m. This was found to overlie weathered chalk to the base of the borehole at
5 m bgl.
3.4 Hydrogeology
3.4.1 Groundwater Vulnerability
The Envirocheck report shows the bedrock to comprise a Principal Aquifer. These are layers of rock
that have high fracture permeability - meaning they usually provide a high level of water storage.
The overlying superficial deposits have been classified as Unproductive Strata.
According to the Envirocheck report, the site is located within a Groundwater Source Protection
Zone III.
3.4.2 Water Abstractions
The Envirocheck report does not record any water abstractions within 500 m of the site.
3.5 Hydrology
The Envirocheck report states that the nearest surface water feature is located on the site. This is
presumed to be the pond/basin located adjacent to the site’s southern boundary. This area is
covered with trees and bushes. However, the basin is known to be dry throughout most of the year,
only holding water after periods of heavy rainfall.
The next nearest surface water feature is a small pond located around 50 m west of the site. There
are no surface watercourses noted within the surrounding area.
3.6 Mining
There are no coal measures strata at workable depth beneath the site.
Within the historical maps, there are no indications of workings having taken place within the clay
anticipated on site. However, brickworks used to be present about 20 m south-east of the site and
several associated small quarries are shown in the early historical maps (1875), adjacent to the
site’s south-eastern boundary and in the wider area east and south-east of the site.
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3.7 Ground Gas
Information obtained from the Envirocheck report indicates that no radon precautions are required.
There are no historical or active landfills within 500 m of the site.
Made ground is anticipated to potentially be locally present on site. This is not expected to be of
significant thickness at this stage.
Two possible very small historical quarries are shown on the 1875 map adjacent to the site’s south
and south-eastern boundary, within the woodland area west of the brickworks. Three further small
quarries were identified on the historical maps within 200 m of the site. The quarries generally
appear to have been disused since the 1900’s and it appears that at least one of these hasn’t been
backfilled. Due to the proximity to the site and the unknown nature of any backfilling materials,
ground gas monitoring wells have been installed in the eastern and southern parts of the site and a
programme of gas monitoring has been instigated.
3.8 Pollution Incidents to Controlled Waters
The Envirocheck report records one pollution incident to controlled waters, 27 m south of the site.
This relates to a pollution incident involving oils with the receptor being unknown and occurred in
1991. It was categorised as a minor incident. This is not expected to have significantly affected the
groundwater below the site.
No other pollution incidents to controlled waters are indicated within 250 m of the site.
3.9 Discharge Consents
The Envirocheck report records one discharge consent located 20 m east of the site, which relates
to sewage discharges of final or treated effluent to a soakaway. The permit has been active since
2012. This is not expected to adversely affect the site.
No other discharge consents are indicated within 250 m of the site.
3.10 Flooding
The Envirocheck report indicates that the site is not within 250 m of a flood plain.
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4.0 OUTLINE CONCEPTUAL MODEL
The site has comprised fields since at least 1880. Significant contamination is not anticipated to be
present.
The following table details the possible sources and associated contaminants of concern, pathways
and receptors, highlighted by the Phase 1 investigation as potentially present.
Potential Contaminants Pathway Receptor
Heavy metals/metalloids and polycyclic aromatic hydrocarbons (PAHs) in topsoil and any made ground
Ingestion, inhalation, direct contact Migration through ground
Site workers, future residents, plants Principal Aquifer
Naturally elevated levels of heavy metals/metalloids in the natural ground
Ingestion, inhalation, direct contact Migration through ground
Site workers, future residents, plants Principal Aquifer
Sulphates in any made ground and the natural ground
Direct contact
Below ground concrete
PAHs in any made ground Direct contact Water supply pipes
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5.0 GROUND INVESTIGATION
5.1 Site Works
We visited site between 8 June and 12 June 2015 and excavated 61 trial pits, TP1 to TP61. These
reached depths of between 2.1 and 3.6 m below ground level (bgl). Infiltration tests were carried out
within a number of these and an additional 23 pits.
Following the initial investigation further window sampling and dynamic probing was considered
necessary. Ten window sample holes and nine dynamic probes were completed on 16 and 17 July
2015. The window sample holes each reached a depth of 4 m bgl and the dynamic probes were
taken to refusal. Six of the window sample holes were installed as gas and groundwater monitoring
wells.
Copies of the trial pit, dynamic probe and window sample logs are presented in Appendix 3, and
their positions are plotted on the Exploratory Hole Location Plan, Drawing number 38473/001,
revision B, in Appendix 1.
5.2 Laboratory Testing
Fifty one samples of topsoil and twenty samples of natural ground were dispatched for chemical
testing. Soil samples were taken in 500 g plastic tubs and amber glass jars. All samples were
analysed at Chemtech Laboratories, using MCERTs accredited methodologies where available.
Fifteen samples of the cohesive soils encountered were sent to Professional Soils Laboratory for
geotechnical testing.
The geotechnical test results are presented in Appendix 4 and discussed further in Section 7. The
chemical test results are presented in Appendix 5 and discussed further in Sections 8 and 9.
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6.0 GROUND CONDITIONS
6.1 Surface Covering
The vast majority of the site comprises fields covered with grass over topsoil. There is a small
section in the south-western corner of the site which is covered with grass, trees and bushes.
The thickness of the topsoil was found to be between 0.25 m and 0.5 m.
6.2 Made Ground
Made ground was not recorded within any of the trial pits.
6.3 Natural Ground
The natural ground across the site generally comprised firm brown, occasionally sandy, gravelly
clay. The clay was occasionally recorded as locally stiff with depth. The gravel was fine to coarse,
sub-angular of mixed lithology with occasional cobbles. Occasionally, layers of sand were recorded
locally at deeper depths (>2 m bgl).
In a small number of trial pits, very weathered clayey chalk was encountered. In the south-western
corner of the site chalk was recorded at depths of between 1.6 m and 2.5 m bgl, in two trial pits. In
the southern part of the site (Field F), chalk was encountered at 2.1 m bgl. However, it should be
mentioned that in a trial pit excavated 3 m away from this pit, chalk was not encountered to a depth
of 3.7 m bgl, where the pit was terminated.
6.4 Surface Depressions
Excavations carried out within a number of the surface depressions generally recorded a thin layer
of topsoil over the natural ground of firm sandy gravelly clay, sometimes overlain by a band of
clayey, often gravelly, sand. The clay often became firmer and less sandy with depth, with
penetrometer readings of 100 kN/m² or 125 kN/m² unconfined compressive strength from around
1.5 m bgl. In three of these, very weak, very weathered, very clayey gravel of chalk was
encountered at about 3 m bgl.
Geotechnical Engineering Ltd also excavated a trial pit within a surface depression. They describe
the following:
‘Made ground was only encountered in the vicinity of TP13 sunk at the location of a possible
subsidence sink hole. The made ground encountered at this location comprised 0.1 m of topsoil,
which overlay a firm brown, slightly sandy, locally sandy, clay, which contained some, locally much,
flint gravel, together with fragments of brick, and a thin layer of ash at a depth of 1.2 m. The made
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ground encountered at this location suggests that some attempt at upfilling the depression has
occurred in the past.’
Eastwood & Partners subsequently undertook four window sample holes within two of the surface
depressions. The findings of the window sample holes within the surface depressions were
consistent with those of Eastwood & Partners’ trial pits. Soft to firm clay which was often sandy
and/or gravelly was generally encountered to the base of the holes at 4 m bgl. The only exception to
this was WSG which encountered chalk at 3.1 m bgl.
Four dynamic probes were undertaken within two of the surface depressions and a further five were
undertaken just outside of the depressions. Each of the dynamic probes was taken to refusal, and
therefore up to 12.1 m deep. The results of the dynamic probes indicate that soft/loose ground was
encountered to a depth of around 2.5 m to 4 m within the surface depressions whereas outside of
these the soft ground generally only reached 2 m or less. The stiff ground was also reached at
greater depths within the surface depressions compared to those outside.
It is therefore concluded that these could be solution features within the chalk. The loose/soft
material in these is expected will need to be stabilised prior to development taking place in these
areas. Vigilance should be maintained throughout construction for further similar features.
6.5 Obstructions
No significant obstructions were encountered. It should be mentioned that a water main and a gas
pipe are crossing the site.
6.6 Groundwater
No groundwater was encountered within any of the trial pits.
6.7 Evidence of Contamination
No visual or olfactory evidence of significant contamination was identified in any of the exploratory
holes.
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7.0 GEOTECHNICAL APPRAISAL
7.1 General
The natural ground across the site generally comprised firm, occasionally sandy, gravelly clay. The
clay was occasionally recorded as locally stiff with depth. Occasionally, layers of sand were
recorded locally at depth.
It is expected that the soft/loose material recorded in the surface depressions up to around 4 m
deep will need to be stabilised prior to development taking place in these areas.
Plasticity tests were carried out on 15 samples of the natural clay across the site. The modified
plasticity indices recorded are in the table below:
Position Modified Plasticity Index (%) TP3, 1.1 m 37.6
TP6, 1.5 m 43.2
TP10, 1.6 m 22.8
TP14, 1.5 m 34.4
TP16, 2 m 29.4
TP24, 1.3 m 48
TP25, 1.5 m 16.6
TP26, 1.9 m 25
TP31, 1 m 27
TP35, 1.1 m 29
TP39, 1.3 m 45.1
TP40, 1.3 m 26.8
TP43, 1.2 m 36.9
TP45, 1.5 m 54.5
TP48, 2 m 36
Four of the samples recorded plasticity indices which equate to a high volume change potential in
accordance with NHBC Standards, Chapter 4.2. These samples were found across the site and not
in a concentrated area. Ten samples recorded plasticity indices which equate to a medium volume
change potential and one sample indicated a low volume change potential. This trial pit recorded
sandy patches. The clay on site is considered should be treated as being of high volume change
potential in accordance with NHBC Standards, Chapter 4.2.
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Six of the samples are shown to be potentially desiccated based on the rule that if 0.4 x liquid limit is
greater than the moisture content then the sample is potentially significantly desiccated. The results
are shown in the table overleaf.
Sample Liquid Limit (%) 40% of Liquid Limit Moisture Content (%) TP14, 1.5 m 64 25.6 24
TP24, 1.3 m 74 29.6 29
TP25, 1.5 m 45 18 12
TP40, 1.3 m 54 21.6 21
TP43, 1.2 m 71 28.4 16
TP48, 2 m 70 28 27
There was no pattern observed with regards to the location of desiccated samples, some pits were
located near to vegetated field boundaries, however others were not. Vigilance will therefore be
required during foundation excavations.
7.2 Foundations
For a low rise housing scheme, the most suitable foundations across the majority of the site are
considered to be strip or trench fill footings at a minimum depth of 1 m below existing or proposed
ground level, whichever is the lowest. For plots located over the stabilised ground within an existing
surface depression an alternative foundation solution, such as rafts or piles, will be necessary.
Vigilance will also be required during excavations for foundations for further areas of loose ground
which could indicate solution features within the chalk.
For foundations outside the surface depressions, based on visual assessment and in situ testing
carried out on the firm clay soils, a safe bearing capacity of 100 kN/m2 should be achieved.
Foundations need to be extended through any made ground, desiccated ground or soft material to
appropriate ground below.
The foundations will need to be deepened in accordance with NHBC Standards, Chapter 4.2, where
existing or proposed trees are within influencing distance. Where existing or proposed trees will
have an influence, the footings should be deepened and constructed in accordance with the NHBC
Standards, Chapter 4.2. These may need to be deepened to up to 3.5 m and the NHBC may require
footings deeper than 2.5 m to be piled. Consideration of the tree influence at any early stage in the
design of the layout would be hoped could avoid the need for piled foundations.
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Precautions against soil heave will be required for all trench-fill footings with a calculated founding
depth greater than 1.5 m due to the past or present trees. For trenchfill footings, allowance should
be made for placing a 75 mm thickness of low density polystyrene from the top of the footing down
to a depth of 500 mm above formation level against the inside face of the perimeter footings. The
trenches will need to be dug wider to accommodate this. A smooth vertical face is required for the
external side of the footings.
If the footings are to span between different materials, e.g. sand and clay, it is considered prudent to
allow for the foundations to be reinforced.
Due to the slope of the site, regrading, tanking, underbuild and retaining may be required.
7.3 Ground Slabs
It is assumed that a precast concrete floor, with a ventilated void beneath, will be used. This void
should be a minimum of 300 mm high where heave precautions are required. A programme of gas
monitoring is being completed to assess the need for protective measures which would be expected
to comprise the addition of a fully lapped and sealed gas membrane for some plots.
7.4 Superstructure Precautions
Additional superstructure precautions are not considered to be required for the majority of the
proposed development as a result of the ground conditions encountered within the trial pits.
However, superstructure precautions are likely to be required for plots if raft foundations are
adopted.
7.5 Excavation Problems
A water main and a gas main are currently crossing the site. These will either need to be
decommissioned and re-routed prior to the development, or an easement will need to be provided.
Excavations at the site were generally found to be stable, however where excavations which
workers are required to enter are over 1.2 m deep, or less where there is a risk of harm from
collapse of the sides of the excavation, the sides should be supported or battered back to make
them safe.
7.6 Roads
A CBR value of at least 2% may be appropriate for road design. The ground should be assumed to
be frost susceptible and a minimum capping thickness of 450 mm will therefore apply.
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It is recommended that CBR tests are undertaken along any proposed roads prior to construction so
that more accurate CBR values can be obtained.
7.7 Surface Water Drainage
Twenty three soakaway tests were conducted in the natural slightly sandy clayey ground at depths
of between 1.15 m and 3.5 m bgl. A copy of the results is provided in Appendix 5. Low infiltration
rates were recorded and the following table summarises the change in water level over the test. The
maximum average infiltration rate recorded was 2 x 10-6 m/s for the test in SA18, where the drop
was only 90 mm over 3.5 hours. Due to the poor changes in water level, infiltration rates were not
calculated for the remaining tests undertaken within the superficial sandy clay deposits.
Soakaway Monitoring Period (Minutes)
Change in Water Level (mm)
SA1 225 -80
SA2 205 -30
SA3 210 -10
SA4 190 -20
SA5 218 -35
SA6 205 -10
SA7 186 -40
SA8 190 -10
SA9 210 0
SA10 170 -10
SA11 170 -30
SA12 170 -40
SA13 145 0
SA14 150 -50
SA18 210 -90
SA19 170 0
SA20 160 0
SA21 100 0
SA22 147 0
SA23 135 0
Chalk was rarely encountered across the site at reasonable depth to conduct infiltration tests and
when that was the case, it was mainly found to be very weathered and clayey. In the southern part
of the site (Field F), chalk was encountered at 2.1 m bgl. However, a trial pit was excavated 3 m
away from this pit and chalk was not encountered within 3.7 m of the surface, at which depth the pit
was terminated.
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Soakaway tests within the weathered chalk were conducted in five positions, three of which were in
surface depressions. The table overleaf summarises the infiltration rates calculated.
Position BRE365 Infiltration Rate (x10-6 m/s)
Average Infiltration Rate (x10-6 m/s)
SA15 (TP39) 16 16
SA16 (TP51) - 1.4
SA24 (TP52) - 7.2
SA25 (TP53) - 3.8
SA17 TEST1 TEST2 TEST1 TEST2
19 15 20 17
Traditional shallow soakaways are considered unlikely to be viable. It is however, possible that
deeper, possibly borehole, soakaways within the un-weathered chalk would be viable.
Consideration would need to be given to not only the infiltration rates but also the site’s location over
a Principal Aquifer and Zone 3 Groundwater Source Protection Zone.
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8.0 REFINEMENT OF OUTLINE CONCEPTUAL MODEL
8.1 Source Characterisation
An outline conceptual model, detailing the possible sources and associated contaminants of
concern, potential pathways and receptors identified in the Phase 1 study, is set out in Section 4.
This section of the report documents the works undertaken to obtain information to test and refine
this model enabling a risk assessment to be produced and, where significant risks are expected,
remediation recommendations.
8.2 Gas Precautions
No radon precautions are required.
No historical or active landfills are recorded within 250 m of the site.
Two possible very small historical quarries, or maybe sinkholes, are shown on the maps adjacent to
the site’s south and south-eastern boundary, within the woodland area west of the brickworks.
Three further small quarries are located within 200 m of the site. The quarries generally appear to
have been disused since the 1900’s and it is not clear whether they have been backfilled. Due to the
proximity to the site and the unknown nature of any backfilling materials, ground gas monitoring in
the eastern and southern parts of the proposed development area has been instigated.
The ground found to be present in the locations of the surface depressions is not expected to
comprise a source of ground gas.
8.3 Unexpected Contamination
No visual or olfactory evidence of potentially significant contamination was identified during the site
investigation.
8.4 Chemical Testing
Fifty one samples of topsoil and twenty samples of natural ground, including soils collected from the
surface depressions, were dispatched for chemical testing. Each of the samples was analysed for
the suite of contaminants listed in the table overleaf:
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Contaminant Type Actual Contaminants
Metals/Metalloids Arsenic, cadmium, chromium (III and VI), lead, mercury, nickel, selenium, copper and zinc
pH pH
PAHs Speciated PAH
Sulphates* Water soluble sulphate, acid soluble sulphate and sulphur * Natural ground only
8.5 Assessment Criteria
The proposed development of the site is for residential properties with private gardens. Therefore
the assessment criteria relating to a residential end use have been used. Tables detailing the
relevant assessment concentrations used are included in Appendix 5.
8.6 Chemical Test Results
8.6.1 Topsoil
None of the tested determinants exceeded their respective assessment values.
8.6.2. Natural Ground
None of the tested determinants exceeded their respective assessment values.
8.6.3 Sulphates
The site has been taken as a Greenfield location in relation to the Aggressive Chemical
Environment for Concrete classifications.
Tests for total sulphur indicate that the total potential sulphates for the natural ground are 0.03% or
below, compared with upper class limit of 0.24% for class DS-1.
The concentrations of water soluble sulphate in the natural ground are between 10 mg/l and
15 mg/l, compared with the upper limit for Design Sulphate Class 1 of 500 mg/l.
pH values for the natural ground ranged between 5.2 and 8, with the lower values indicating an
ACEC Class of AC-2z.
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9.0 RISK ASSESSMENT
9.1 Human Health – Construction Workers
Significant contamination was generally not encountered. Normal precautions, such as washing
hands before eating, should be sufficient to mitigate any risk posed to construction workers. Any
unusual, brightly coloured or odorous material encountered during construction should be brought to
the attention of the site staff and investigated.
9.2 Human Health – Future Residents and Visitors
The results of the chemical testing undertaken as part of this ground investigation indicate that the
topsoil and natural ground on the site are not considered to pose a significant risk to the health of
future residents, visitors or other site users.
The topsoil is therefore considered to be suitable for re-use in the proposed development.
9.3 Plants
Significantly elevated concentrations of phytotoxic elements were not recorded. Therefore, no
significant risk to plants is anticipated from the soils on site.
9.4 Ground Gas
A program of gas monitoring is currently ongoing and three rounds have been undertaken to date.
These were completed between 27 July and 24 August 2015 predominantly during periods of low or
falling atmospheric pressure. A copy of the results and atmospheric conditions is provided in
Appendix 5.
Methane was not detected. Carbon dioxide was recorded at concentrations of up to 3.3% by volume
with normal oxygen levels of between 16.6% and 20.1%. No positive flow rates were recorded in
any of the wells during the monitoring visits, with the maximum recorded flow being 0.0 l/hr.
Gas screening values cannot be calculated as no positive gas flows were recorded. However,
based on the total concentrations of methane and carbon dioxide recorded, the site would be placed
in Characteristic Situation 1 under the modified Wilson and Card classification system and Green
under the NHBC Traffic light system, as outlined in CIRIA C665. No ground gas precautions would
therefore be required.
The gas monitoring program is ongoing and these classifications will be confirmed on completion of
the program.
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9.5 Concrete
The chemical test results indicate DS-1 with ACEC class of AC-2z is required for below ground
concrete.
9.6 Controlled Waters
No significant risks are expected to be posed to controlled waters.
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10.0 CONTAMINATION - RECOMMENDATIONS AND APPROVALS
1. None of the contaminants tested exceeded their respective assessment values. Remedial
measures are therefore not considered necessary and the topsoil is considered suitable for
re-use.
2. DS-1 AC-2z sulphate precautions are required for below ground concrete.
3. Ground gas monitoring is ongoing. However, the early results indicate that the site will be
classified as Green under the NHBC traffic light system, and no gas precautions will be
required.
4. The conclusions made in this report in relation to contamination are subject to agreement by
the approving bodies such as the Local Authority and warranty provider.
5. It is recommended that the test results are forwarded to the water company who will
determine what type of water supply pipes need to be installed at the site.
Persimmon Homes and Redrow Homes Terriers Farm, High Wycombe
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Appendix 1 Extract from Wycombe District Council’s Local Plan ‘Consultation Document’, dated January 2014
‘Exploratory Hole Location Plan’, Drawing Number 38473/001B
Wycombe District Local Plan: Options
Consultation DocumentJanuary 2014
Thriving places: cherishing our environment; nurturing our growth
A new Local Plan for Wycombe District to 2031• Environment• Infrastructure• Homes• Jobs
New Local Plan - Options Consultation Document
Contents
Foreword........................................................................................... 3
1. Introduction.................................................................................. 4
2. The ‘Big Challenge’ Plan.............................................................. 13
3. Wycombe District in 2031............................................................ 18
4. How much and where? – the Big Choices: Homes and Jobs....... 20
5. What Sites Are Being Considered in your Area?........................... 41
Area 1 - High Wycombe town...................................... 43
Area 2 - Chepping Wye Valley...................................... 60
Area 3 - Marlow........................................................... 66
Area 4 – South West Chiltern....................................... 69
Area 5 – North West Chiltern........................................ 71
Area 6 – Princes Risborough........................................ 74
6. Managing Development............................................................... 85
Appendices........................................................................................ 93
Appendix 1 Glossary.......................................................................... 94
Appendix 2 Studies and Background Papers...................................... 98
Appendix 3 Assessing the Main Housing Options............................... 100
Appendix 4 - Area proposals – site details and site plans.................... 116
5.5 HW4 Terriers Farm (23ha)
This site is located on the northern side of High Wycombe occupying a sensitive area between the town and Hazlemere. It contains pasture land and adjoins both the Chilterns AONB and the Terriers Conservation Area. It is a visually enclosed site but contains high quality hedgerow features which form a strong landscape structure. It is located close to an important public transport corridor on the northern approach into High Wycombe.
Option 1: Terriers Farm could provide for approximately 310- 410 homes, and a Park and Ride facility
Under this option, a park and ride facility would be provided to be located close to the junction with Kingshill Road. This could provide a shuttle link with the southern Park and Ride site, or an upgraded existing interurban service.
Option 2: Terriers Farm could provide for approximately 380-490 homes (up to a maximum of 490 homes) with no Park and Ride facility provided
Under this option, no park and ride facility would be provided and the site would be developed for residential development only.
HW4 Terriers Farm - Indicative development areas:
OS Mapping: © Crown Copyright and database rights 2014 Ordnance Survey 100023306.
55
Key development principles
• Provision for improvement in movement across the wider area around the Terriers double-roundabout, in particular providing for an improved environment for pedestrians and cyclists;
• Retention of sensitive hedgerows and existing trees on the site;
• Respect the adjacent Terriers Conservation Area;
• Provision of the eastern fields as the on-site open space to link with the sports facilities at the adjacent Hazlemere Recreation Ground;
• Integration with adjacent development at Terriers House;
• Provision of full walking and cycling connectivity to and through the site, and direct and safe walking connections to local services and bus stops. These should be integrated into any local junction improvements needed;
• Provision of vehicle access points from Kingshill Road;
• Provision of any local junction improvements/signalisation/optimisation needed – including:
Double-roundabout between Amersham Road, Totteridge Lane and Kingshill Road; and Amersham Road with Hamilton Road;
• Provision of local school travel planning as well as a travel plan for the development;
• Contribution to the enhancement of the Green Infrastructure Network;
• Retention of strong separation between High Wycombe and Hazlemere;
• Provision of other aspects of community infrastructure. Specific infrastructure issues identified to date include capacity of local schools and doctors surgeries. Development will be expected to address these issues which may include on-site provision or through specific financial contributions to enable the expansion of local facilities (e.g. Kingswood Surgery, Totteridge);
• Collaboration with the water authorities to demonstrate that there is adequate water and waste water capacity both on and off site to serve the development.
Q27a – Should a Park and Ride facility and service be provided from this site? If not, what public transport measures should be provided?
Q27b – Should development link in with Terriers House?
Q27c – Are wider transport measures required to improve movement around Terriers double-roundabout, in particular to improve the environment for pedestrians and cyclists?
56
www.eastwoodandpartners.com
St. Andrew's House
23 Kingfield Road
Sheffield
S11 9AS
0114 255 4554
0114 255 4330Fax
Tel
Persimmon Homes and Redrow Homes Terriers Farm, High Wycombe
CAT/MM/KS/38473-001 Site Investigation Report
Issue 2
26 August 2015
Appendix 2 Envirocheck Report
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
Datasheet
Order Details:Order Number:
Customer Reference:
National Grid Reference:
Slice:
Site Area (Ha):
Search Buffer (m):
Site Details:
Client Details:
67922248_1_1
38473 Terriers Farm
489020, 195290
B
21.9
1000
Terriers FarmHigh Wycombe
Miss K Daddo-LangloisEastwood & Partners LtdSt Andrews House23 Kingfield RoadSheffieldS11 9AS
Report:®Envirocheck
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
Summary
Agency & Hydrological
Waste
Hazardous Substances
Geological
Industrial Land Use
Sensitive Land Use
Data Currency
Data Suppliers
Useful Contacts
Introduction
Copyright Notice
Natural England Copyright Notice
Ove Arup Copyright Notice
Peter Brett Associates Copyright Notice
Radon Potential dataset Copyright Notice
The Environment Act 1995 has made site sensitivity a key issue, as the legislation pays as much attention to the pathways by which contamination could spread, and to the vulnerable targets of contamination, as it does the potential sources of contamination. For this reason, Landmark's Site Sensitivity maps and Datasheet(s) place great emphasis on statutory data provided by the Environment Agency/Natural Resources Wales and the Scottish Environment Protection Agency; it also incorporates data from Natural England (and the Scottish and Welsh equivalents) and Local Authorities; and highlights hydrogeological features required by environmental and geotechnical consultants. It does not include any information concerning past uses of land. The datasheet is produced by querying the Landmark database to a distance defined by the client from a site boundary provided by the client.
In the attached datasheet the National Grid References (NGRs) are rounded to the nearest 10m in accordance with Landmark's agreements with a number of Data Suppliers.
© Landmark Information Group Limited 2015. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property of Landmark Information Group Limited ("Landmark") and several other Data Providers, including (but not limited to) Ordnance Survey, British Geological Survey, the Environment Agency/Natural Resources Wales and Natural England, and must not be reproduced in whole or in part by photocopying or any other method. The Report is supplied under Landmark's Terms and Conditions accepted by the Customer. A copy of Landmark's Terms and Conditions can be found with the Index Map for this report. Additional copies of the Report may be obtained from Landmark, subject to Landmark's charges in force from time to time. The Copyright, design rights and any other intellectual rights shall remain the exclusive property of Landmark and /or other Data providers, whose Copyright material has been included in this Report.
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.
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.
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.
Information supplied from a joint dataset compiled by The British Geological Survey and Public Health England.
Report Section Page Number
Contents
Report Version v49.0
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1
3
-
4
9
10
11
15
16
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
Summary
Data Type PageNumber On Site 0 to 250m 251 to 500m
Agency & Hydrological
501 to 1000m
Contaminated Land Register Entries and Notices
Discharge Consents
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
Pollution Incidents to Controlled Waters
Prosecutions Relating to Authorised Processes
Prosecutions Relating to Controlled Waters
Registered Radioactive Substances
River Quality
River Quality Biology Sampling Points
River Quality Chemistry Sampling Points
Substantiated Pollution Incident Register
Water Abstractions
Water Industry Act Referrals
Groundwater Vulnerability
Bedrock Aquifer Designations
Superficial Aquifer Designations
Source Protection Zones
Extreme Flooding from Rivers or Sea without Defences
Flooding from Rivers or Sea without Defences
Areas Benefiting from Flood Defences
Flood Water Storage Areas
Flood Defences
Detailed River Network Lines
Detailed River Network Offline Drainage
Yes
Yes
Yes
1
n/a
n/a
n/a
1
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
2
2
1
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
(*up to 2000m)
pg 1
pg 1
pg 1
pg 1
pg 2
pg 2
pg 2
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
Summary
Data Type PageNumber On Site 0 to 250m 251 to 500m
Waste
Hazardous Substances
Geological
501 to 1000m
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
Control of Major Accident Hazards Sites (COMAH)
Explosive Sites
Notification of Installations Handling Hazardous Substances (NIHHS)
Planning Hazardous Substance Consents
Planning Hazardous Substance Enforcements
BGS 1:625,000 Solid Geology
BGS Estimated Soil Chemistry
BGS Recorded Mineral Sites
BGS Urban Soil Chemistry
BGS Urban Soil Chemistry Averages
Brine Compensation Area
Coal Mining Affected Areas
Mining Instability
Man-Made Mining Cavities
Natural Cavities
Non Coal Mining Areas of Great Britain
Potential for Collapsible Ground Stability Hazards
Potential for Compressible Ground Stability Hazards
Potential for Ground Dissolution Stability Hazards
Potential for Landslide Ground Stability Hazards
Potential for Running Sand Ground Stability Hazards
Potential for Shrinking or Swelling Clay Ground Stability Hazards
Radon Potential - Radon Affected Areas
Radon Potential - Radon Protection Measures
Yes
Yes
Yes
Yes
Yes
Yes
Yes
n/a
Yes
n/a
n/a
n/a
n/a
n/a
n/a
Yes
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Yes
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
(*up to 2000m)
pg 4
pg 4
pg 7
pg 8
pg 8
pg 8
pg 8
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
Summary
Data Type PageNumber On Site 0 to 250m 251 to 500m
Industrial Land Use
Sensitive Land Use
501 to 1000m
Contemporary Trade Directory Entries
Fuel Station Entries
Areas of Adopted Green Belt
Areas of Unadopted Green Belt
Areas of Outstanding Natural Beauty
Environmentally Sensitive Areas
Forest Parks
Local Nature Reserves
Marine Nature Reserves
National Nature Reserves
National Parks
Nitrate Sensitive Areas
Nitrate Vulnerable Zones
Ramsar Sites
Sites of Special Scientific Interest
Special Areas of Conservation
Special Protection Areas
1
1
1 n/a
2
(*up to 2000m)
pg 9
pg 9
pg 10
pg 10
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 1 of 16
Agency & Hydrological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
1
2
3
4
5
Discharge Consents
Discharge Consents
Local Authority Pollution Prevention and Controls
Local Authority Pollution Prevention and Controls
Nearest Surface Water Feature
Pollution Incidents to Controlled Waters
Groundwater Vulnerability
B9NE(NE)
B5SE(S)
B9NE(NE)
B9NE(NE)
B5NW(S)
(NW)
839
909
803
855
596
0
2
2
3
3
2
2
Operator:Property Type:Location:Authority:Catchment Area:Reference:Permit Version:Effective Date:Issued Date:Revocation Date:Discharge Type:Discharge Environment:Receiving Water:Status:Positional Accuracy:
Operator:Property Type:Location:Authority:Catchment Area:Reference:Permit Version:Effective Date:Issued Date:Revocation Date:Discharge Type:Discharge Environment:Receiving Water:Status:Positional Accuracy:
Name:Location:Authority:Permit Reference:Dated:Process Type:Description:Status:Positional Accuracy:
Name:Location:
Authority:Permit Reference:Dated:Process Type:Description:Status:Positional Accuracy:
Property Type:Location:Authority:Pollutant:Note:Incident Date:Incident Reference:Catchment Area:Receiving Water:Cause of Incident:Incident Severity:Positional Accuracy:
Soil Classification:
Map Sheet:Scale:
Watson & Ewen Ltd.Undefined Or OtherOrchard Works, Amersham Rd, Haslemere, BucksEnvironment Agency, Thames RegionNot GivenCTWC.0464110th December 198510th December 1985Not SuppliedSewage Discharges - Final/Treated Effluent - Not Water CompanyInto Land
Upper ChalkTransferred from COPA 1974Located by supplier to within 100m
Mr. C.P. AperghisDomestic Property (Single)Beacon Hill, Manor Road, Tylersgreen, Penn, BucksEnvironment Agency, Thames RegionNot GivenCTWC.1619119th May 198719th May 1987Not SuppliedSewage Discharges - Final/Treated Effluent - Not Water CompanyIrrigation Area
ChalkTransferred from COPA 1974Located by supplier to within 100m
Esso Hazlemere Crossroads331 Amersham Road, HIGH WYCOMBE, Buckinghamshire, HP15 7HLWycombe District Council, Environmental ServicesX1322nd September 1999Local Authority Air Pollution ControlPG1/14 Petrol filling stationAuthorisedAutomatically positioned to the address
Shell HazlemereHazlemere Crossroads, Hazlemere, HIGH WYCOMBE, Buckinghamshire, HP15 7LGWycombe District Council, Environmental ServicesX188th July 1999Local Authority Air Pollution ControlPG1/14 Petrol filling stationAuthorisedAutomatically positioned to the address
Not GivenSt Johns Road, TYLERS GREENEnvironment Agency, Thames RegionChemicals - UnknownNot Supplied25th February 1996N1960081Not GivenNot GivenNot GivenCategory 2 - Significant IncidentLocated by supplier to within 100m
Soils of Intermediate Leaching Potential (I1) - Soils which can possibly transmit a wide range of pollutantsSheet 39 West London1:100,000
None
489200195650
489180194660
489175195593
489233195565
489001195001
488719195470
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 2 of 16
Agency & Hydrological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
6
7
Groundwater Vulnerability
Drift Deposits
Bedrock Aquifer Designations
Bedrock Aquifer Designations
Superficial Aquifer Designations
Superficial Aquifer Designations
Source Protection Zones
Source Protection Zones
Extreme Flooding from Rivers or Sea without Defences
Flooding from Rivers or Sea without Defences
Areas Benefiting from Flood Defences
Flood Water Storage Areas
Flood Defences
Detailed River Network Lines
Detailed River Network Offline Drainage
B9SW(SW)
B9SW(SW)
B5NW(S)
B9SW(SW)
(SW)
B9SW(SW)
B9SW(W)
B5SE(S)
0
0
0
0
0
0
0
218
2
2
4
4
4
4
2
2
Soil Classification:
Map Sheet:Scale:
Drift Deposit:
Map Sheet:Scale:
Aquifer Designation:
Aquifer Designation:
Aquifer Designation:
Aquifer Designation:
Name:Source:Reference:Type:
Name:Source:Reference:Type:
Soils of High Leaching Potential (U) - Soil information for restored mineral workings and urban areas is based on fewer observations than elsewhere. A worst case vulnerability classification (H) assumed, until proved otherwiseSheet 39 West London1:100,000
Low permeability drift deposits occuring at the surface and overlying Major andMinor Aquifers are head, clay-with-flints, brickearth, peat, river terrace depositsand marine and estuarine alluviumSheet 39 West London1:100,000
Principal Aquifer
Principal Aquifer
Unproductive Strata
Unproductive Strata
VariousEnvironment Agency, Head OfficeNot SuppliedZone III (Total Catchment): The total area needed to support the discharge from the protected groundwater source.
VariousEnvironment Agency, Head OfficeNot SuppliedZone II (Outer Protection Zone): Either 25% of the source area or a 400 day travel time whichever is greater.
None
None
None
None
None
None
None
489021195292
489021195292
489021195000
489021195292
488680195000
489021195292
489017195293
489150194502
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 3 of 16
Waste
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
Local Authority Landfill Coverage
Local Authority Landfill Coverage
0
0
3
9
Name:
Name:
Wycombe District Council - Has supplied landfill data
Buckinghamshire County Council - Has supplied landfill data
489021195292
489021195292
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 4 of 16
Geological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
BGS 1:625,000 Solid Geology
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
B9SW(SW)
B9SW(W)
(SW)
B5NW(S)
B9SW(S)
B5NW(S)
B13SW(N)
0
0
28
251
302
544
544
4
4
4
4
4
4
4
Description:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
White Chalk Subgroup
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
489021195292
489000195292
488679195000
488950195000
489000195207
489000195099
489000196000
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 5 of 16
Geological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
B5NW(S)
B9NW(N)
B9SW(S)
B9SW(SW)
B5NW(S)
B5NW(S)
547
565
568
569
595
676
4
4
4
4
4
4
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
489000195000
488933195804
489017195207
489021195292
489021195000
489000194810
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 6 of 16
Geological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
B13SW(N)
B13SW(N)
B13SW(N)
B1SW(S)
B13SW(N)
B5SE(S)
719
792
805
815
822
838
4
4
4
4
4
4
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
489000195827
489039195919
489000195975
488824194000
489021196000
489070194619
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 7 of 16
Geological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Estimated Soil Chemistry
BGS Measured Urban Soil Chemistry
BGS Urban Soil Chemistry Averages
Coal Mining Affected Areas
Non Coal Mining Areas of Great Britain
Non Coal Mining Areas of Great Britain
B13SW(N)
B13SE(N)
B13NW(N)
B5SE(S)
B13SE(N)
B9SW(SW)
(SW)
856
897
962
973
991
0
0
4
4
4
4
4
4
4
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Source:Soil Sample Type:Arsenic Concentration:Cadmium Concentration:Chromium Concentration:Lead Concentration:Nickel Concentration:
Risk:Source:
Risk:Source:
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg<15 mg/kg
British Geological Survey, National Geoscience Information ServiceRural Soil<15 mg/kg
<1.8 mg/kg
60 - 90 mg/kg
<150 mg/kg15 - 30 mg/kg
UnlikelyBritish Geological Survey, National Geoscience Information Service
UnlikelyBritish Geological Survey, National Geoscience Information Service
No data available
No data available
In an area that might not be affected by coal mining
489045196000
489097196000
489000196233
489256194660
489204196113
489021195292
488679195000
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 8 of 16
Geological
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
Non Coal Mining Areas of Great Britain
Potential for Collapsible Ground Stability Hazards
Potential for Collapsible Ground Stability Hazards
Potential for Compressible Ground Stability Hazards
Potential for Compressible Ground Stability Hazards
Potential for Ground Dissolution Stability Hazards
Potential for Ground Dissolution Stability Hazards
Potential for Ground Dissolution Stability Hazards
Potential for Landslide Ground Stability Hazards
Potential for Landslide Ground Stability Hazards
Potential for Running Sand Ground Stability Hazards
Potential for Running Sand Ground Stability Hazards
Potential for Shrinking or Swelling Clay Ground Stability Hazards
Potential for Shrinking or Swelling Clay Ground Stability Hazards
Radon Potential - Radon Protection Measures
Radon Potential - Radon Protection Measures
Radon Potential - Radon Affected Areas
Radon Potential - Radon Affected Areas
B9SW(NW)
B9SW(SW)
B5NW(S)
B9SW(SW)
B5NW(S)
B9SW(NW)
B9SW(SW)
(SW)
B9SW(SW)
(SW)
B9SW(SW)
B5NW(S)
B9SW(SW)
(SW)
B5NW(S)
B9SW(SW)
B5NW(S)
B9SW(SW)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Risk:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Hazard Potential:Source:
Protection Measure:
Source:
Protection Measure:
Source:
Affected Area:
Source:
Affected Area:
Source:
Highly UnlikelyBritish Geological Survey, National Geoscience Information Service
Very LowBritish Geological Survey, National Geoscience Information Service
Very LowBritish Geological Survey, National Geoscience Information Service
No HazardBritish Geological Survey, National Geoscience Information Service
No HazardBritish Geological Survey, National Geoscience Information Service
LowBritish Geological Survey, National Geoscience Information Service
ModerateBritish Geological Survey, National Geoscience Information Service
ModerateBritish Geological Survey, National Geoscience Information Service
Very LowBritish Geological Survey, National Geoscience Information Service
Very LowBritish Geological Survey, National Geoscience Information Service
No HazardBritish Geological Survey, National Geoscience Information Service
No HazardBritish Geological Survey, National Geoscience Information Service
LowBritish Geological Survey, National Geoscience Information Service
LowBritish Geological Survey, National Geoscience Information Service
No radon protective measures are necessary in the construction of new dwellings or extensionsBritish Geological Survey, National Geoscience Information Service
No radon protective measures are necessary in the construction of new dwellings or extensionsBritish Geological Survey, National Geoscience Information Service
The property is in a lower probability radon area, as less than 1% of homes are above the action levelBritish Geological Survey, National Geoscience Information Service
The property is in a lower probability radon area, as less than 1% of homes are above the action levelBritish Geological Survey, National Geoscience Information Service
488925195375
489021195292
489021195000
489021195292
489021195000
488910195395
489021195292
488679195000
489021195292
488679195000
489021195292
489021195000
489021195292
488679195000
489021195000
489021195292
489021195000
489021195292
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 9 of 16
Industrial Land Use
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
8
9
10
Contemporary Trade Directory Entries
Fuel Station Entries
Fuel Station Entries
B5NW(SW)
B9NE(NE)
B9NE(NE)
496
802
855
-
-
-
Name:Location:
Classification:Status:Positional Accuracy:
Name:Location:
Brand:Premises Type:Status:Positional Accuracy:
Name:Location:
Brand:Premises Type:Status:Positional Accuracy:
Liz LambornKingswood, St. Johns Road, Hazlemere, High Wycombe, Buckinghamshire, HP15 7QRWallpapers & Wall CoveringsInactiveAutomatically positioned to the address
Hazlemere Cross Roads Otr Service Station331, Amersham Road, Hazlemere, High Wycombe, Buckinghamshire, HP15 7HLESSOPetrol StationOpenManually positioned to the address or location
Shell HazlemereHazlemere Cross Roads, Hazlemere, High Wycombe, Buckinghamshire, HP15 7LGSHELLPetrol StationOpenAutomatically positioned to the address
488822194870
489174195594
489233195565
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 10 of 16
Sensitive Land Use
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
11
12
Areas of Adopted Green Belt
Areas of Outstanding Natural Beauty
(W)
(NW)
99
1
5
7
Authority:Plan Name:Status:Plan Date:
Name:Multiple Areas:Total Area (m2):Designation Date:Source:
Wycombe District Council, Development ControlWycombe District Local Plan To 2011Adopted31st January 2004
ChilternsY838304032.4430th March 1990Natural England
487686195158
488703195557
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 11 of 16
Data Currency
Agency & Hydrological Version Update CycleContaminated Land Register Entries and Notices
Discharge Consents
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
Pollution Incidents to Controlled Waters
Prosecutions Relating to Authorised Processes
Prosecutions Relating to Controlled Waters
River Quality
River Quality Biology Sampling Points
River Quality Chemistry Sampling Points
Substantiated Pollution Incident Register
Water Abstractions
Water Industry Act Referrals
Groundwater Vulnerability
Drift Deposits
Bedrock Aquifer Designations
April 2014January 2015October 2014
January 2015
March 2013
October 2008
January 2015
October 2014September 2014September 2014
October 2014September 2014September 2014
October 2014September 2014September 2014
July 2012
September 1999
March 2013
March 2013
November 2001
July 2012
July 2012
January 2015January 2015
January 2015
January 2015
April 2015
January 1999
October 2012
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Quarterly
As notified
Not Applicable
Quarterly
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Quarterly
Not Applicable
As notified
As notified
Not Applicable
Annually
Annually
QuarterlyQuarterly
Quarterly
Quarterly
Not Applicable
Not Applicable
As notified
Chiltern District Council - Environmental HealthWycombe District Council - Environmental ServicesSouth Buckinghamshire District Council - Environmental Health Department
Environment Agency - Thames Region
Environment Agency - Thames Region
Environment Agency - Thames Region
Environment Agency - Thames Region
Chiltern District Council - Environmental HealthSouth Buckinghamshire District Council - Environmental Health DepartmentWycombe District Council - Environmental Services
Chiltern District Council - Environmental HealthSouth Buckinghamshire District Council - Environmental Health DepartmentWycombe District Council - Environmental Services
Chiltern District Council - Environmental HealthSouth Buckinghamshire District Council - Environmental Health DepartmentWycombe District Council - Environmental Services
Ordnance Survey
Environment Agency - Thames Region
Environment Agency - Thames Region
Environment Agency - Thames Region
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Environment Agency - Thames Region
Environment Agency - Thames Region
Environment Agency - Head Office
Environment Agency - Head Office
British Geological Survey - National Geoscience Information Service
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 12 of 16
Data Currency
Agency & Hydrological
Waste
Version
Version
Update Cycle
Update Cycle
Superficial Aquifer Designations
Source Protection Zones
Extreme Flooding from Rivers or Sea without Defences
Flooding from Rivers or Sea without Defences
Areas Benefiting from Flood Defences
Flood Water Storage Areas
Flood Defences
Detailed River Network Lines
Detailed River Network Offline Drainage
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 Landfill Coverage
Local Authority Recorded Landfill Sites
Registered Landfill Sites
Registered Waste Transfer Sites
Registered Waste Treatment or Disposal Sites
January 2015
April 2015
May 2015
May 2015
May 2015
May 2015
May 2015
March 2012
March 2012
June 1996
February 2015February 2015
October 2008
August 2014August 2014
August 2014August 2014
May 2000May 2000May 2000May 2000
August 2006May 2000May 2000May 2000
March 2003March 2003
March 2003March 2003
March 2003March 2003
As notified
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Quarterly
Annually
Annually
Not Applicable
QuarterlyQuarterly
Not Applicable
QuarterlyQuarterly
QuarterlyQuarterly
Not ApplicableNot ApplicableNot ApplicableNot Applicable
Not ApplicableNot ApplicableNot ApplicableNot Applicable
Not ApplicableNot Applicable
Not ApplicableNot Applicable
Not ApplicableNot Applicable
British Geological Survey - National Geoscience Information Service
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
Environment Agency - Head Office
British Geological Survey - National Geoscience Information Service
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Environment Agency - Thames Region
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Buckinghamshire County CouncilChiltern District Council - Environmental HealthSouth Buckinghamshire District CouncilWycombe District Council - Environmental Services
South Buckinghamshire District CouncilBuckinghamshire County CouncilChiltern District Council - Environmental HealthWycombe District Council - Environmental Services
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Environment Agency - Thames Region - North East AreaEnvironment Agency - Thames Region - West Area
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 13 of 16
Data Currency
Hazardous Substances
Geological
Version
Version
Update Cycle
Update Cycle
Control of Major Accident Hazards Sites (COMAH)
Explosive Sites
Notification of Installations Handling Hazardous Substances (NIHHS)
Planning Hazardous Substance Enforcements
Planning Hazardous Substance Consents
BGS 1:625,000 Solid Geology
BGS Estimated Soil Chemistry
BGS Recorded Mineral Sites
Brine Compensation Area
Coal Mining Affected Areas
Mining Instability
Non Coal Mining Areas of Great Britain
Potential for Collapsible Ground Stability Hazards
Potential for Compressible Ground Stability Hazards
Potential for Ground Dissolution Stability Hazards
Potential for Landslide Ground Stability Hazards
Potential for Running Sand Ground Stability Hazards
Potential for Shrinking or Swelling Clay Ground Stability Hazards
Radon Potential - Radon Affected Areas
Radon Potential - Radon Protection Measures
January 2015
October 2014
November 2000
March 2014November 2014September 2013September 2014
March 2014November 2014September 2013September 2014
January 2009
January 2010
May 2015
August 2011
March 2014
October 2000
July 2014
June 2014
June 2014
June 2014
June 2014
June 2014
June 2014
July 2011
July 2011
Bi-Annually
Bi-Annually
Not Applicable
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Annual Rolling UpdateAnnual Rolling UpdateAnnual Rolling UpdateAnnual Rolling Update
Not Applicable
Annually
Bi-Annually
Not Applicable
As notified
Not Applicable
Not Applicable
Annually
Annually
Annually
Annually
Annually
Annually
As notified
As notified
Health and Safety Executive
Health and Safety Executive
Health and Safety Executive
Chiltern District Council - Planning DepartmentSouth Buckinghamshire District Council - Development Control DepartmentBuckinghamshire County CouncilWycombe District Council - Development Control
Chiltern District Council - Planning DepartmentSouth Buckinghamshire District Council - Development Control DepartmentBuckinghamshire County CouncilWycombe District Council - Development Control
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
Cheshire Brine Subsidence Compensation Board
The Coal Authority - Mining Report Service
Ove Arup & Partners
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
British Geological Survey - National Geoscience Information Service
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 14 of 16
Data Currency
Industrial Land Use
Sensitive Land Use
Version
Version
Update Cycle
Update Cycle
Contemporary Trade Directory Entries
Fuel Station Entries
Areas of Adopted Green Belt
Areas of Unadopted Green Belt
Areas of Outstanding Natural Beauty
Environmentally Sensitive Areas
Forest Parks
Local Nature Reserves
Marine Nature Reserves
National Nature Reserves
National Parks
Nitrate Sensitive Areas
Nitrate Vulnerable Zones
Ramsar Sites
Sites of Special Scientific Interest
Special Areas of Conservation
Special Protection Areas
February 2015
November 2014
May 2015May 2015May 2015
May 2015May 2015May 2015
February 2015
August 2014
April 1997
April 2015
July 2013
March 2015
February 2015
February 2012
July 2014
March 2014
April 2015
March 2014
April 2015
Quarterly
Quarterly
As notifiedAs notifiedAs notified
As notifiedAs notifiedAs notified
Bi-Annually
Annually
Not Applicable
Bi-Annually
Bi-Annually
Bi-Annually
Bi-Annually
Not Applicable
Annually
Bi-Annually
Bi-Annually
Bi-Annually
Bi-Annually
Thomson Directories
Catalist Ltd - Experian
Chiltern District Council - Planning DepartmentSouth Buckinghamshire District Council - Development Control DepartmentWycombe District Council - Development Control
Chiltern District Council - Planning DepartmentSouth Buckinghamshire District Council - Development Control DepartmentWycombe District Council - Development Control
Natural England
Natural England
Forestry Commission
Natural England
Natural England
Natural England
Natural England
Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA)
Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA)
Natural England
Natural England
Natural England
Natural England
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 15 of 16
Data Suppliers
Ordnance Survey
Environment Agency
Scottish Environment Protection Agency
The Coal Authority
British Geological Survey
Centre for Ecology and Hydrology
Natural Resources Wales
Scottish Natural Heritage
Natural England
Public Health England
Ove Arup
Peter Brett Associates
Data Supplier Data Supplier Logo
A selection of organisations who provide data within this report
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 16 of 16
Useful Contacts
Contact Name and Address Contact Details
2
3
4
5
6
7
8
9
-
-
Environment Agency - National Customer Contact Centre (NCCC)
Wycombe District Council - Environmental Services
British Geological Survey - Enquiry Service
Wycombe District Council - Development Control
Chiltern District Council - Planning Department
Natural England
Department for Environment, Food and Rural Affairs (DEFRA - formerly FRCA)
Buckinghamshire County Council
Public Health England - Radon Survey, Centre for Radiation, Chemical and Environmental Hazards
Landmark Information Group Limited
PO Box 544, Templeborough, Rotherham, S60 1BY
District Council Offices, Queen Victoria Road, High Wycombe, Buckinghamshire, HP11 1BB
British Geological Survey, Kingsley Dunham Centre, Keyworth, Nottingham, Nottinghamshire, NG12 5GG
District Council Offices, Queen Victoria Road, High Wycombe, Buckinghamshire, HP11 1BB
Council Offices, King George V Road, Amersham, Buckinghamshire, HP65AW
Suite D, Unex House, Bourges Boulevard, Peterborough, Cambridgeshire, PE1 1NG
Government Buildings, Otley Road, Lawnswood, Leeds, West Yorkshire, LS16 5QT
County Hall, Aylesbury, Buckinghamshire, HP20 1UA
Chilton, Didcot, Oxfordshire, OX11 0RQ
Imperium, Imperial Way, Reading, Berkshire, RG2 0TD
Telephone: 08708 506 506Email: [email protected]
Telephone: 01494 461000Fax: 01494 461292Website: www.wycombe.gov.uk
Telephone: 0115 936 3143Fax: 0115 936 3276Email: [email protected]: www.bgs.ac.uk
Telephone: 01494 461000Fax: 01494 421108Website: www.wycombe.gov.uk
Telephone: 01494 729000Fax: 01494 729332Website: www.chiltern.gov.uk
Telephone: 0845 600 3078Email: [email protected]: www.naturalengland.org.uk
Telephone: 0113 2613333Fax: 0113 230 0879
Telephone: 01296 395900Fax: 01296 88887Website: www.buckscc.gov.uk
Telephone: 01235 822622Fax: 01235 833891Email: [email protected]: www.ukradon.org
Telephone: 0844 844 9952Fax: 0844 844 9951Email: [email protected]: www.landmarkinfo.co.uk
Please note that the Environment Agency / Natural Resources Wales / SEPA have a charging policy in place for enquiries.
Order Details
Site DetailsTerriers Farm, High Wycombe
Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):
67922248_1_138473 Terriers Farm489020, 195290B21.91000
Tel:Fax:Web:
0844 844 99520844 844 9951www.envirocheck.co.uk
Page 1 of 5A Landmark Information Group Service v15.0 27-May-2015
Site Sensitivity Context Map - Slice B
Groundwater Vulnerability
Order Details
Site DetailsTerriers Farm, High Wycombe
Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):
67922248_1_138473 Terriers Farm489020, 195290B21.91000
Tel:Fax:Web:
0844 844 99520844 844 9951www.envirocheck.co.uk
Page 2 of 5A Landmark Information Group Service v15.0 27-May-2015
Site Sensitivity Context Map - Slice B
Bedrock Aquifer Designation
Order Details
Site DetailsTerriers Farm, High Wycombe
Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):
67922248_1_138473 Terriers Farm489020, 195290B21.91000
Tel:Fax:Web:
0844 844 99520844 844 9951www.envirocheck.co.uk
Page 3 of 5A Landmark Information Group Service v15.0 27-May-2015
Site Sensitivity Context Map - Slice B
Superficial Aquifer Designation
Order Details
Site DetailsTerriers Farm, High Wycombe
Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):
67922248_1_138473 Terriers Farm489020, 195290B21.91000
Tel:Fax:Web:
0844 844 99520844 844 9951www.envirocheck.co.uk
Page 4 of 5A Landmark Information Group Service v15.0 27-May-2015
Site Sensitivity Context Map - Slice B
Source Protection Zones
Order Details
Site DetailsTerriers Farm, High Wycombe
Order Number:Customer Ref:National Grid Reference:Slice:Site Area (Ha):Search Buffer (m):
67922248_1_138473 Terriers Farm489020, 195290B21.91000
Tel:Fax:Web:
0844 844 99520844 844 9951www.envirocheck.co.uk
Page 5 of 5A Landmark Information Group Service v15.0 27-May-2015
Site Sensitivity Context Map - Slice B
Sensitive Land Uses
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
BGS Boreholes Datasheet
Order Details:Order Number:
Customer Reference:
National Grid Reference:
Slice:
Site Area (Ha):
Borehole Search Buffer (m):
Site Details:
Client Details:
67922248_1_1
38473 Terriers Farm
489020, 195290
B
21.9
500
Terriers FarmHigh Wycombe
Miss K Daddo-LangloisEastwood & Partners LtdSt Andrews House23 Kingfield RoadSheffieldS11 9AS
Report:®Envirocheck
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service
BGS Boreholes Summary
Data Type PageNumber On Site 0 to 250m 251 to 500m
BGS Boreholes None None 1pg 1
Introduction
Copyright Notice
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.
© Landmark Information Group Limited 2015. The Copyright on the information and data and its format as contained in this Envirocheck® Report ("Report") is the property ofLandmark 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 v49.0
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 1 of 2
BGS Boreholes Detail
MapID Details
QuadrantReference (Compass Direction)
EstimatedDistanceFrom Site
Contact NGR
13BGS Boreholes
B9SW(W)
351 4BGS Reference:Drilled Length (m):Borehole Name:Link to Borehole Scan:
Su89ne501.6The Crown Hazlemere 1http://scans.bgs.ac.uk/sobi_scans/boreholes/15948501/
488768195290
Order Number: 67922248_1_1 Date: 27-May-2015 rpr_ec_datasheet v49.0 A Landmark Information Group Service Page 2 of 2
Data Currency and Contact Details
BGS Boreholes Version Update CycleBGS Boreholes
April 2015 QuarterlyBritish Geological Survey - National Geoscience Information Service
Contact Details Contact Logo
4
-
British Geological Survey - Enquiry Service
Landmark Information Group Limited
British Geological Survey, Kingsley Dunham Centre, Keyworth, Nottingham, Nottinghamshire, NG12 5GG
Imperium, Imperial Way, Reading, Berkshire, RG2 0TD
Telephone: 0115 936 3143Fax: 0115 936 3276Email: [email protected]: www.bgs.ac.uk
Telephone: 0844 844 9952Fax: 0844 844 9951Email: [email protected]: www.landmarkinfo.co.uk